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 */
21 #include "configreader.h"
25 #include "commands/cmd_whois.h"
26 #include "commands/cmd_stats.h"
31 #include "cull_list.h"
34 #define nspace __gnu_cxx
37 /** If you make a change which breaks the protocol, increment this.
38 * If you completely change the protocol, completely change the number.
40 const long ProtocolVersion = 1100;
43 * The server list in InspIRCd is maintained as two structures
44 * which hold the data in different ways. Most of the time, we
45 * want to very quicky obtain three pieces of information:
47 * (1) The information on a server
48 * (2) The information on the server we must send data through
49 * to actually REACH the server we're after
50 * (3) Potentially, the child/parent objects of this server
52 * The InspIRCd spanning protocol provides easy access to these
53 * by storing the data firstly in a recursive structure, where
54 * each item references its parent item, and a dynamic list
55 * of child items, and another structure which stores the items
56 * hashed, linearly. This means that if we want to find a server
57 * by name quickly, we can look it up in the hash, avoiding
58 * any O(n) lookups. If however, during a split or sync, we want
59 * to apply an operation to a server, and any of its child objects
60 * we can resort to recursion to walk the tree structure.
63 using irc::sockets::MatchCIDR;
65 class ModuleSpanningTree;
66 static ModuleSpanningTree* TreeProtocolModule;
67 static InspIRCd* ServerInstance;
69 /* Any socket can have one of five states at any one time.
70 * The LISTENER state indicates a socket which is listening
71 * for connections. It cannot receive data itself, only incoming
73 * The CONNECTING state indicates an outbound socket which is
74 * waiting to be writeable.
75 * The WAIT_AUTH_1 state indicates the socket is outbound and
76 * has successfully connected, but has not yet sent and received
78 * The WAIT_AUTH_2 state indicates that the socket is inbound
79 * (allocated by a LISTENER) but has not yet sent and received
81 * The CONNECTED state represents a fully authorized, fully
84 enum ServerState { LISTENER, CONNECTING, WAIT_AUTH_1, WAIT_AUTH_2, CONNECTED };
86 /* Foward declarations */
90 /* This variable represents the root of the server tree
91 * (for all intents and purposes, it's us)
95 /* This hash_map holds the hash equivalent of the server
96 * tree, used for rapid linear lookups.
98 typedef nspace::hash_map<std::string, TreeServer*, nspace::hash<string>, irc::StrHashComp> server_hash;
99 server_hash serverlist;
101 typedef nspace::hash_map<std::string, userrec*> uid_hash;
102 typedef nspace::hash_map<std::string, char*> sid_hash;
104 /* More forward declarations */
105 bool DoOneToOne(std::string prefix, std::string command, std::deque<std::string> ¶ms, std::string target);
106 bool DoOneToAllButSender(std::string prefix, std::string command, std::deque<std::string> ¶ms, std::string omit);
107 bool DoOneToAllButSender(const char* prefix, const char* command, std::deque<std::string> ¶ms, std::string omit);
108 bool DoOneToMany(std::string prefix, std::string command, std::deque<std::string> ¶ms);
109 bool DoOneToMany(const char* prefix, const char* command, std::deque<std::string> ¶ms);
110 bool DoOneToAllButSenderRaw(std::string data, std::string omit, std::string prefix, irc::string command, std::deque<std::string> ¶ms);
111 void ReadConfiguration(bool rebind);
113 /* Flatten links and /MAP for non-opers */
115 /* Hide U-Lined servers in /MAP and /LINKS */
118 std::vector<std::string> ValidIPs;
120 class UserManager : public classbase
131 std::string UserToUID(userrec* user)
136 std::string UIDToUser(const std::string &UID)
141 std::string CreateAndAdd(userrec* user)
146 std::string CreateAndAdd(const std::string &servername)
151 std::string ServerToSID(const std::string &servername)
156 std::string SIDToServer(const std::string &SID)
161 userrec* FindByID(const std::string &UID)
168 /* Each server in the tree is represented by one class of
169 * type TreeServer. A locally connected TreeServer can
170 * have a class of type TreeSocket associated with it, for
171 * remote servers, the TreeSocket entry will be NULL.
172 * Each server also maintains a pointer to its parent
173 * (NULL if this server is ours, at the top of the tree)
174 * and a pointer to its "Route" (see the comments in the
175 * constructors below), and also a dynamic list of pointers
176 * to its children which can be iterated recursively
177 * if required. Creating or deleting objects of type
178 i* TreeServer automatically maintains the hash_map of
179 * TreeServer items, deleting and inserting them as they
180 * are created and destroyed.
183 class TreeServer : public classbase
185 InspIRCd* ServerInstance; /* Creator */
186 TreeServer* Parent; /* Parent entry */
187 TreeServer* Route; /* Route entry */
188 std::vector<TreeServer*> Children; /* List of child objects */
189 irc::string ServerName; /* Server's name */
190 std::string ServerDesc; /* Server's description */
191 std::string VersionString; /* Version string or empty string */
192 int UserCount; /* Not used in this version */
193 int OperCount; /* Not used in this version */
194 TreeSocket* Socket; /* For directly connected servers this points at the socket object */
195 time_t NextPing; /* After this time, the server should be PINGed*/
196 bool LastPingWasGood; /* True if the server responded to the last PING with a PONG */
200 /* We don't use this constructor. Its a dummy, and won't cause any insertion
201 * of the TreeServer into the hash_map. See below for the two we DO use.
203 TreeServer(InspIRCd* Instance) : ServerInstance(Instance)
209 UserCount = OperCount = 0;
210 VersionString = ServerInstance->GetVersionString();
213 /* We use this constructor only to create the 'root' item, TreeRoot, which
214 * represents our own server. Therefore, it has no route, no parent, and
215 * no socket associated with it. Its version string is our own local version.
217 TreeServer(InspIRCd* Instance, std::string Name, std::string Desc) : ServerInstance(Instance), ServerName(Name.c_str()), ServerDesc(Desc)
221 UserCount = OperCount = 0;
222 VersionString = ServerInstance->GetVersionString();
224 Socket = NULL; /* Fix by brain */
228 /* When we create a new server, we call this constructor to initialize it.
229 * This constructor initializes the server's Route and Parent, and sets up
230 * its ping counters so that it will be pinged one minute from now.
232 TreeServer(InspIRCd* Instance, std::string Name, std::string Desc, TreeServer* Above, TreeSocket* Sock)
233 : ServerInstance(Instance), Parent(Above), ServerName(Name.c_str()), ServerDesc(Desc), Socket(Sock)
236 UserCount = OperCount = 0;
237 this->SetNextPingTime(time(NULL) + 60);
240 /* find the 'route' for this server (e.g. the one directly connected
241 * to the local server, which we can use to reach it)
243 * In the following example, consider we have just added a TreeServer
244 * class for server G on our network, of which we are server A.
245 * To route traffic to G (marked with a *) we must send the data to
246 * B (marked with a +) so this algorithm initializes the 'Route'
247 * value to point at whichever server traffic must be routed through
248 * to get here. If we were to try this algorithm with server B,
249 * the Route pointer would point at its own object ('this').
259 * We only run this algorithm when a server is created, as
260 * the routes remain constant while ever the server exists, and
261 * do not need to be re-calculated.
265 if (Route == TreeRoot)
271 while (this->Route->GetParent() != TreeRoot)
273 this->Route = Route->GetParent();
277 /* Because recursive code is slow and takes a lot of resources,
278 * we store two representations of the server tree. The first
279 * is a recursive structure where each server references its
280 * children and its parent, which is used for netbursts and
281 * netsplits to dump the whole dataset to the other server,
282 * and the second is used for very fast lookups when routing
283 * messages and is instead a hash_map, where each item can
284 * be referenced by its server name. The AddHashEntry()
285 * call below automatically inserts each TreeServer class
286 * into the hash_map as it is created. There is a similar
287 * maintainance call in the destructor to tidy up deleted
291 this->AddHashEntry();
294 int QuitUsers(const std::string &reason)
296 ServerInstance->Log(DEBUG,"Removing all users from server %s",this->ServerName.c_str());
297 const char* reason_s = reason.c_str();
298 std::vector<userrec*> time_to_die;
299 for (user_hash::iterator n = ServerInstance->clientlist.begin(); n != ServerInstance->clientlist.end(); n++)
301 if (!strcmp(n->second->server, this->ServerName.c_str()))
303 time_to_die.push_back(n->second);
306 for (std::vector<userrec*>::iterator n = time_to_die.begin(); n != time_to_die.end(); n++)
308 userrec* a = (userrec*)*n;
309 ServerInstance->Log(DEBUG,"Kill %s fd=%d",a->nick,a->GetFd());
311 userrec::QuitUser(ServerInstance,a,reason_s);
313 return time_to_die.size();
316 /* This method is used to add the structure to the
317 * hash_map for linear searches. It is only called
318 * by the constructors.
322 server_hash::iterator iter;
323 iter = serverlist.find(this->ServerName.c_str());
324 if (iter == serverlist.end())
325 serverlist[this->ServerName.c_str()] = this;
328 /* This method removes the reference to this object
329 * from the hash_map which is used for linear searches.
330 * It is only called by the default destructor.
334 server_hash::iterator iter;
335 iter = serverlist.find(this->ServerName.c_str());
336 if (iter != serverlist.end())
337 serverlist.erase(iter);
340 /* These accessors etc should be pretty self-
344 TreeServer* GetRoute()
349 std::string GetName()
351 return ServerName.c_str();
354 std::string GetDesc()
359 std::string GetVersion()
361 return VersionString;
364 void SetNextPingTime(time_t t)
367 LastPingWasGood = false;
370 time_t NextPingTime()
375 bool AnsweredLastPing()
377 return LastPingWasGood;
382 LastPingWasGood = true;
405 TreeSocket* GetSocket()
410 TreeServer* GetParent()
415 void SetVersion(std::string Version)
417 VersionString = Version;
420 unsigned int ChildCount()
422 return Children.size();
425 TreeServer* GetChild(unsigned int n)
427 if (n < Children.size())
429 /* Make sure they cant request
430 * an out-of-range object. After
431 * all we know what these programmer
432 * types are like *grin*.
442 void AddChild(TreeServer* Child)
444 Children.push_back(Child);
447 bool DelChild(TreeServer* Child)
449 for (std::vector<TreeServer*>::iterator a = Children.begin(); a < Children.end(); a++)
460 /* Removes child nodes of this node, and of that node, etc etc.
461 * This is used during netsplits to automatically tidy up the
462 * server tree. It is slow, we don't use it for much else.
466 bool stillchildren = true;
467 while (stillchildren)
469 stillchildren = false;
470 for (std::vector<TreeServer*>::iterator a = Children.begin(); a < Children.end(); a++)
472 TreeServer* s = (TreeServer*)*a;
476 stillchildren = true;
485 /* We'd better tidy up after ourselves, eh? */
486 this->DelHashEntry();
490 /* The Link class might as well be a struct,
491 * but this is C++ and we don't believe in structs (!).
492 * It holds the entire information of one <link>
493 * tag from the main config file. We maintain a list
494 * of them, and populate the list on rehash/load.
497 class Link : public classbase
503 std::string SendPass;
504 std::string RecvPass;
505 unsigned long AutoConnect;
506 time_t NextConnectTime;
507 std::string EncryptionKey;
508 bool HiddenFromStats;
509 irc::string FailOver;
512 void DoFailOver(Link* x);
513 Link* FindLink(const std::string& name);
515 /* The usual stuff for inspircd modules,
516 * plus the vector of Link classes which we
517 * use to store the <link> tags from the config
521 std::vector<Link> LinkBlocks;
523 /* Yay for fast searches!
524 * This is hundreds of times faster than recursion
525 * or even scanning a linked list, especially when
526 * there are more than a few servers to deal with.
529 TreeServer* FindServer(std::string ServerName)
531 server_hash::iterator iter;
532 iter = serverlist.find(ServerName.c_str());
533 if (iter != serverlist.end())
543 /* Returns the locally connected server we must route a
544 * message through to reach server 'ServerName'. This
545 * only applies to one-to-one and not one-to-many routing.
546 * See the comments for the constructor of TreeServer
549 TreeServer* BestRouteTo(std::string ServerName)
551 if (ServerName.c_str() == TreeRoot->GetName())
553 TreeServer* Found = FindServer(ServerName);
556 return Found->GetRoute();
564 /* Find the first server matching a given glob mask.
565 * Theres no find-using-glob method of hash_map [awwww :-(]
566 * so instead, we iterate over the list using an iterator
567 * and match each one until we get a hit. Yes its slow,
570 TreeServer* FindServerMask(std::string ServerName)
572 for (server_hash::iterator i = serverlist.begin(); i != serverlist.end(); i++)
574 if (match(i->first.c_str(),ServerName.c_str()))
580 /* A convenient wrapper that returns true if a server exists */
581 bool IsServer(std::string ServerName)
583 return (FindServer(ServerName) != NULL);
587 class cmd_rconnect : public command_t
591 cmd_rconnect (InspIRCd* Instance, Module* Callback) : command_t(Instance, "RCONNECT", 'o', 2), Creator(Callback)
593 this->source = "m_spanningtree.so";
594 syntax = "<remote-server-mask> <servermask>";
597 CmdResult Handle (const char** parameters, int pcnt, userrec *user)
599 user->WriteServ("NOTICE %s :*** RCONNECT: Sending remote connect to \002%s\002 to connect server \002%s\002.",user->nick,parameters[0],parameters[1]);
600 /* Is this aimed at our server? */
601 if (ServerInstance->MatchText(ServerInstance->Config->ServerName,parameters[0]))
603 /* Yes, initiate the given connect */
604 ServerInstance->SNO->WriteToSnoMask('l',"Remote CONNECT from %s matching \002%s\002, connecting server \002%s\002",user->nick,parameters[0],parameters[1]);
606 para[0] = parameters[1];
607 Creator->OnPreCommand("CONNECT", para, 1, user, true);
618 /* Every SERVER connection inbound or outbound is represented by
619 * an object of type TreeSocket.
620 * TreeSockets, being inherited from InspSocket, can be tied into
621 * the core socket engine, and we cn therefore receive activity events
622 * for them, just like activex objects on speed. (yes really, that
623 * is a technical term!) Each of these which relates to a locally
624 * connected server is assocated with it, by hooking it onto a
625 * TreeSocket class using its constructor. In this way, we can
626 * maintain a list of servers, some of which are directly connected,
627 * some of which are not.
630 class TreeSocket : public InspSocket
633 std::string in_buffer;
634 ServerState LinkState;
635 std::string InboundServerName;
636 std::string InboundDescription;
638 int num_lost_servers;
640 bool LastPingWasGood;
644 unsigned int keylength;
645 std::string ModuleList;
646 std::map<std::string,std::string> CapKeys;
650 /* Because most of the I/O gubbins are encapsulated within
651 * InspSocket, we just call the superclass constructor for
652 * most of the action, and append a few of our own values
655 TreeSocket(InspIRCd* SI, std::string host, int port, bool listening, unsigned long maxtime)
656 : InspSocket(SI, host, port, listening, maxtime)
659 this->LinkState = LISTENER;
661 this->ctx_out = NULL;
664 TreeSocket(InspIRCd* SI, std::string host, int port, bool listening, unsigned long maxtime, std::string ServerName)
665 : InspSocket(SI, host, port, listening, maxtime)
668 this->LinkState = CONNECTING;
670 this->ctx_out = NULL;
673 /* When a listening socket gives us a new file descriptor,
674 * we must associate it with a socket without creating a new
675 * connection. This constructor is used for this purpose.
677 TreeSocket(InspIRCd* SI, int newfd, char* ip)
678 : InspSocket(SI, newfd, ip)
680 this->LinkState = WAIT_AUTH_1;
682 this->ctx_out = NULL;
683 this->SendCapabilities();
694 void InitAES(std::string key,std::string SName)
701 ServerInstance->Log(DEBUG,"Initialized AES key %s",key.c_str());
702 // key must be 16, 24, 32 etc bytes (multiple of 8)
703 keylength = key.length();
704 if (!(keylength == 16 || keylength == 24 || keylength == 32))
706 this->Instance->SNO->WriteToSnoMask('l',"\2ERROR\2: Key length for encryptionkey is not 16, 24 or 32 bytes in length!");
707 ServerInstance->Log(DEBUG,"Key length not 16, 24 or 32 characters!");
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);
719 /* When an outbound connection finishes connecting, we receive
720 * this event, and must send our SERVER string to the other
721 * side. If the other side is happy, as outlined in the server
722 * to server docs on the inspircd.org site, the other side
723 * will then send back its own server string.
725 virtual bool OnConnected()
727 if (this->LinkState == CONNECTING)
729 /* we do not need to change state here. */
730 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
732 if (x->Name == this->myhost)
734 this->Instance->SNO->WriteToSnoMask('l',"Connection to \2"+myhost+"\2["+(x->HiddenFromStats ? "<hidden>" : this->GetIP())+"] established.");
735 this->SendCapabilities();
736 if (x->EncryptionKey != "")
738 if (!(x->EncryptionKey.length() == 16 || x->EncryptionKey.length() == 24 || x->EncryptionKey.length() == 32))
740 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.");
744 this->WriteLine(std::string("AES ")+this->Instance->Config->ServerName);
745 this->InitAES(x->EncryptionKey,x->Name.c_str());
748 /* found who we're supposed to be connecting to, send the neccessary gubbins. */
749 this->WriteLine(std::string("SERVER ")+this->Instance->Config->ServerName+" "+x->SendPass+" 0 :"+this->Instance->Config->ServerDesc);
754 /* There is a (remote) chance that between the /CONNECT and the connection
755 * being accepted, some muppet has removed the <link> block and rehashed.
756 * If that happens the connection hangs here until it's closed. Unlikely
757 * and rather harmless.
759 this->Instance->SNO->WriteToSnoMask('l',"Connection to \2"+myhost+"\2 lost link tag(!)");
763 virtual void OnError(InspSocketError e)
765 /* We don't handle this method, because all our
766 * dirty work is done in OnClose() (see below)
767 * which is still called on error conditions too.
769 if (e == I_ERR_CONNECT)
771 this->Instance->SNO->WriteToSnoMask('l',"Connection failed: Connection to \002"+myhost+"\002 refused");
772 Link* MyLink = FindLink(myhost);
778 virtual int OnDisconnect()
780 /* For the same reason as above, we don't
781 * handle OnDisconnect()
786 /* Recursively send the server tree with distances as hops.
787 * This is used during network burst to inform the other server
788 * (and any of ITS servers too) of what servers we know about.
789 * If at any point any of these servers already exist on the other
790 * end, our connection may be terminated. The hopcounts given
791 * by this function are relative, this doesn't matter so long as
792 * they are all >1, as all the remote servers re-calculate them
793 * to be relative too, with themselves as hop 0.
795 void SendServers(TreeServer* Current, TreeServer* s, int hops)
798 for (unsigned int q = 0; q < Current->ChildCount(); q++)
800 TreeServer* recursive_server = Current->GetChild(q);
801 if (recursive_server != s)
803 snprintf(command,1024,":%s SERVER %s * %d :%s",Current->GetName().c_str(),recursive_server->GetName().c_str(),hops,recursive_server->GetDesc().c_str());
804 this->WriteLine(command);
805 this->WriteLine(":"+recursive_server->GetName()+" VERSION :"+recursive_server->GetVersion());
806 /* down to next level */
807 this->SendServers(recursive_server, s, hops+1);
812 std::string MyCapabilities()
814 std::vector<std::string> modlist;
815 std::string capabilities = "";
817 for (int i = 0; i <= this->Instance->GetModuleCount(); i++)
819 if (this->Instance->modules[i]->GetVersion().Flags & VF_COMMON)
820 modlist.push_back(this->Instance->Config->module_names[i]);
822 sort(modlist.begin(),modlist.end());
823 for (unsigned int i = 0; i < modlist.size(); i++)
826 capabilities = capabilities + ",";
827 capabilities = capabilities + modlist[i];
832 void SendCapabilities()
834 irc::commasepstream modulelist(MyCapabilities());
836 this->WriteLine("CAPAB START");
838 /* Send module names, split at 509 length */
839 std::string item = "*";
840 std::string line = "CAPAB MODULES ";
841 while ((item = modulelist.GetToken()) != "")
843 if (line.length() + item.length() + 1 > 509)
845 this->WriteLine(line);
846 line = "CAPAB MODULES ";
849 if (line != "CAPAB MODULES ")
854 if (line != "CAPAB MODULES ")
855 this->WriteLine(line);
862 #ifdef SUPPORT_IP6LINKS
865 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));
867 this->WriteLine("CAPAB END");
870 /* Check a comma seperated list for an item */
871 bool HasItem(const std::string &list, const std::string &item)
873 irc::commasepstream seplist(list);
875 std::string item2 = "*";
876 while ((item2 = seplist.GetToken()) != "")
885 /* Isolate and return the elements that are different between two comma seperated lists */
886 std::string ListDifference(const std::string &one, const std::string &two)
888 irc::commasepstream list_one(one);
889 std::string item = "*";
890 std::string result = "";
891 while ((item = list_one.GetToken()) != "")
893 if (!HasItem(two, item))
902 bool Capab(std::deque<std::string> params)
904 if (params.size() < 1)
906 this->WriteLine("ERROR :Invalid number of parameters for CAPAB - Mismatched version");
910 if (params[0] == "START")
912 this->ModuleList = "";
913 this->CapKeys.clear();
915 else if (params[0] == "END")
917 std::string reason = "";
919 #ifdef SUPPORT_IP6LINKS
922 /* Compare ModuleList and check CapKeys...
923 * Maybe this could be tidier? -- Brain
925 if ((this->ModuleList != this->MyCapabilities()) && (this->ModuleList.length()))
927 std::string diff = ListDifference(this->ModuleList, this->MyCapabilities());
930 diff = "your server:" + ListDifference(this->MyCapabilities(), this->ModuleList);
934 diff = "this server:" + diff;
936 if (diff.length() == 12)
937 reason = "Module list in CAPAB is not alphabetically ordered, cannot compare lists.";
939 reason = "Modules loaded on these servers are not correctly matched, these modules are not loaded on " + diff;
942 if (((this->CapKeys.find("IP6SUPPORT") == this->CapKeys.end()) && (ip6support)) || ((this->CapKeys.find("IP6SUPPORT") != this->CapKeys.end()) && (this->CapKeys.find("IP6SUPPORT")->second != ConvToStr(ip6support))))
943 reason = "We don't both support linking to IPV6 servers";
945 if (((this->CapKeys.find("IP6NATIVE") != this->CapKeys.end()) && (this->CapKeys.find("IP6NATIVE")->second == "1")) && (!ip6support))
946 reason = "The remote server is IPV6 native, and we don't support linking to IPV6 servers";
948 if (((this->CapKeys.find("NICKMAX") == this->CapKeys.end()) || ((this->CapKeys.find("NICKMAX") != this->CapKeys.end()) && (this->CapKeys.find("NICKMAX")->second != ConvToStr(NICKMAX)))))
949 reason = "Maximum nickname lengths differ or remote nickname length not specified";
951 if (((this->CapKeys.find("PROTOCOL") == this->CapKeys.end()) || ((this->CapKeys.find("PROTOCOL") != this->CapKeys.end()) && (this->CapKeys.find("PROTOCOL")->second != ConvToStr(ProtocolVersion)))))
953 if (this->CapKeys.find("PROTOCOL") != this->CapKeys.end())
955 reason = "Mismatched protocol versions "+this->CapKeys.find("PROTOCOL")->second+" and "+ConvToStr(ProtocolVersion);
959 reason = "Protocol version not specified";
963 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))))
964 reason = "We don't both have halfop support enabled/disabled identically";
966 if (((this->CapKeys.find("IDENTMAX") == this->CapKeys.end()) || ((this->CapKeys.find("IDENTMAX") != this->CapKeys.end()) && (this->CapKeys.find("IDENTMAX")->second != ConvToStr(IDENTMAX)))))
967 reason = "Maximum ident lengths differ or remote ident length not specified";
969 if (((this->CapKeys.find("CHANMAX") == this->CapKeys.end()) || ((this->CapKeys.find("CHANMAX") != this->CapKeys.end()) && (this->CapKeys.find("CHANMAX")->second != ConvToStr(CHANMAX)))))
970 reason = "Maximum channel lengths differ or remote channel length not specified";
972 if (((this->CapKeys.find("MAXMODES") == this->CapKeys.end()) || ((this->CapKeys.find("MAXMODES") != this->CapKeys.end()) && (this->CapKeys.find("MAXMODES")->second != ConvToStr(MAXMODES)))))
973 reason = "Maximum modes per line differ or remote modes per line not specified";
975 if (((this->CapKeys.find("MAXQUIT") == this->CapKeys.end()) || ((this->CapKeys.find("MAXQUIT") != this->CapKeys.end()) && (this->CapKeys.find("MAXQUIT")->second != ConvToStr(MAXQUIT)))))
976 reason = "Maximum quit lengths differ or remote quit length not specified";
978 if (((this->CapKeys.find("MAXTOPIC") == this->CapKeys.end()) || ((this->CapKeys.find("MAXTOPIC") != this->CapKeys.end()) && (this->CapKeys.find("MAXTOPIC")->second != ConvToStr(MAXTOPIC)))))
979 reason = "Maximum topic lengths differ or remote topic length not specified";
981 if (((this->CapKeys.find("MAXKICK") == this->CapKeys.end()) || ((this->CapKeys.find("MAXKICK") != this->CapKeys.end()) && (this->CapKeys.find("MAXKICK")->second != ConvToStr(MAXKICK)))))
982 reason = "Maximum kick lengths differ or remote kick length not specified";
984 if (((this->CapKeys.find("MAXGECOS") == this->CapKeys.end()) || ((this->CapKeys.find("MAXGECOS") != this->CapKeys.end()) && (this->CapKeys.find("MAXGECOS")->second != ConvToStr(MAXGECOS)))))
985 reason = "Maximum GECOS (fullname) lengths differ or remote GECOS length not specified";
987 if (((this->CapKeys.find("MAXAWAY") == this->CapKeys.end()) || ((this->CapKeys.find("MAXAWAY") != this->CapKeys.end()) && (this->CapKeys.find("MAXAWAY")->second != ConvToStr(MAXAWAY)))))
988 reason = "Maximum awaymessage lengths differ or remote awaymessage length not specified";
992 this->WriteLine("ERROR :CAPAB negotiation failed: "+reason);
996 else if ((params[0] == "MODULES") && (params.size() == 2))
998 if (!this->ModuleList.length())
1000 this->ModuleList.append(params[1]);
1004 this->ModuleList.append(",");
1005 this->ModuleList.append(params[1]);
1008 else if ((params[0] == "CAPABILITIES") && (params.size() == 2))
1010 irc::tokenstream capabs(params[1]);
1011 std::string item = "*";
1012 while ((item = capabs.GetToken()) != "")
1014 /* Process each key/value pair */
1015 std::string::size_type equals = item.rfind('=');
1016 if (equals != std::string::npos)
1018 std::string var = item.substr(0, equals);
1019 std::string value = item.substr(equals+1, item.length());
1020 this->Instance->Log(DEBUG,"Key='%s' Value='%s'",var.c_str(),value.c_str());
1021 CapKeys[var] = value;
1029 /* This function forces this server to quit, removing this server
1030 * and any users on it (and servers and users below that, etc etc).
1031 * It's very slow and pretty clunky, but luckily unless your network
1032 * is having a REAL bad hair day, this function shouldnt be called
1033 * too many times a month ;-)
1035 void SquitServer(std::string &from, TreeServer* Current)
1037 /* recursively squit the servers attached to 'Current'.
1038 * We're going backwards so we don't remove users
1039 * while we still need them ;)
1041 for (unsigned int q = 0; q < Current->ChildCount(); q++)
1043 TreeServer* recursive_server = Current->GetChild(q);
1044 this->SquitServer(from,recursive_server);
1046 /* Now we've whacked the kids, whack self */
1048 num_lost_users += Current->QuitUsers(from);
1051 /* This is a wrapper function for SquitServer above, which
1052 * does some validation first and passes on the SQUIT to all
1053 * other remaining servers.
1055 void Squit(TreeServer* Current,std::string reason)
1057 if ((Current) && (Current != TreeRoot))
1059 std::deque<std::string> params;
1060 params.push_back(Current->GetName());
1061 params.push_back(":"+reason);
1062 DoOneToAllButSender(Current->GetParent()->GetName(),"SQUIT",params,Current->GetName());
1063 if (Current->GetParent() == TreeRoot)
1065 this->Instance->WriteOpers("Server \002"+Current->GetName()+"\002 split: "+reason);
1069 this->Instance->WriteOpers("Server \002"+Current->GetName()+"\002 split from server \002"+Current->GetParent()->GetName()+"\002 with reason: "+reason);
1071 num_lost_servers = 0;
1073 std::string from = Current->GetParent()->GetName()+" "+Current->GetName();
1074 SquitServer(from, Current);
1076 Current->GetParent()->DelChild(Current);
1078 this->Instance->WriteOpers("Netsplit complete, lost \002%d\002 users on \002%d\002 servers.", num_lost_users, num_lost_servers);
1082 ServerInstance->Log(DEFAULT,"Squit from unknown server");
1086 /* FMODE command - server mode with timestamp checks */
1087 bool ForceMode(std::string source, std::deque<std::string> ¶ms)
1089 /* Chances are this is a 1.0 FMODE without TS */
1090 if (params.size() < 3)
1092 this->WriteLine("ERROR :Version 1.0 FMODE sent to version 1.1 server");
1097 std::string sourceserv;
1099 /* Are we dealing with an FMODE from a user, or from a server? */
1100 userrec* who = this->Instance->FindNick(source);
1103 /* FMODE from a user, set sourceserv to the users server name */
1104 sourceserv = who->server;
1108 /* FMODE from a server, create a fake user to receive mode feedback */
1109 who = new userrec(this->Instance);
1110 who->SetFd(FD_MAGIC_NUMBER);
1111 smode = true; /* Setting this flag tells us we should free the userrec later */
1112 sourceserv = source; /* Set sourceserv to the actual source string */
1114 const char* modelist[64];
1117 memset(&modelist,0,sizeof(modelist));
1118 for (unsigned int q = 0; (q < params.size()) && (q < 64); q++)
1122 /* The timestamp is in this position.
1123 * We don't want to pass that up to the
1124 * server->client protocol!
1126 TS = atoi(params[q].c_str());
1130 /* Everything else is fine to append to the modelist */
1131 modelist[n++] = params[q].c_str();
1135 /* Extract the TS value of the object, either userrec or chanrec */
1136 userrec* dst = this->Instance->FindNick(params[0]);
1137 chanrec* chan = NULL;
1145 chan = this->Instance->FindChan(params[0]);
1152 /* TS is equal: Merge the mode changes, use voooodoooooo on modes
1157 ServerInstance->Log(DEBUG,"Entering TS equality check");
1158 ModeHandler* mh = NULL;
1159 unsigned long paramptr = 3;
1160 std::string to_bounce = "";
1161 std::string to_keep = "";
1162 std::vector<std::string> params_to_keep;
1163 std::string params_to_bounce = "";
1165 char cur_change = 1;
1166 char old_change = 0;
1167 char old_bounce_change = 0;
1168 /* Merge modes, basically do special stuff to mode with params */
1169 for (std::string::iterator x = params[2].begin(); x != params[2].end(); x++)
1182 /* We only care about whats being set,
1183 * not whats being unset
1185 mh = this->Instance->Modes->FindMode(*x, chan ? MODETYPE_CHANNEL : MODETYPE_USER);
1187 if ((mh) && (mh->GetNumParams(adding) > 0) && (!mh->IsListMode()))
1189 /* We only want to do special things to
1190 * modes with parameters, we are going to rewrite
1194 adding ? cur_change = '+' : cur_change = '-';
1196 ret = mh->ModeSet(smode ? NULL : who, dst, chan, params[paramptr]);
1198 /* The mode is set here, check which we should keep */
1201 bool which_to_keep = mh->CheckTimeStamp(TS, ourTS, params[paramptr], ret.second, chan);
1203 if (which_to_keep == true)
1205 /* Keep ours, bounce theirs:
1206 * Send back ours to them and
1207 * drop their mode changs
1209 adding ? cur_change = '+' : cur_change = '-';
1210 if (cur_change != old_bounce_change)
1211 to_bounce += cur_change;
1213 old_bounce_change = cur_change;
1215 if ((mh->GetNumParams(adding) > 0) && (paramptr < params.size()))
1216 params_to_bounce.append(" ").append(ret.second);
1220 /* Keep theirs: Accept their mode change,
1223 adding ? cur_change = '+' : cur_change = '-';
1224 if (cur_change != old_change)
1225 to_keep += cur_change;
1227 old_change = cur_change;
1229 if ((mh->GetNumParams(adding) > 0) && (paramptr < params.size()))
1230 params_to_keep.push_back(params[paramptr]);
1235 /* Mode isnt set here, we want it */
1236 adding ? cur_change = '+' : cur_change = '-';
1237 if (cur_change != old_change)
1238 to_keep += cur_change;
1240 old_change = cur_change;
1242 if ((mh->GetNumParams(adding) > 0) && (paramptr < params.size()))
1243 params_to_keep.push_back(params[paramptr]);
1250 mh = this->Instance->Modes->FindMode(*x, chan ? MODETYPE_CHANNEL : MODETYPE_USER);
1254 adding ? cur_change = '+' : cur_change = '-';
1256 /* Just keep this, safe to merge with no checks
1257 * it has no parameters
1260 if (cur_change != old_change)
1261 to_keep += cur_change;
1263 old_change = cur_change;
1265 if ((mh->GetNumParams(adding) > 0) && (paramptr < params.size()))
1267 ServerInstance->Log(DEBUG,"Mode removal %d %d",adding, mh->GetNumParams(adding));
1268 params_to_keep.push_back(params[paramptr++]);
1275 mh = this->Instance->Modes->FindMode(*x, chan ? MODETYPE_CHANNEL : MODETYPE_USER);
1279 /* Taking a mode away */
1280 adding ? cur_change = '+' : cur_change = '-';
1282 if (cur_change != old_change)
1283 to_keep += cur_change;
1285 old_change = cur_change;
1287 if ((mh->GetNumParams(adding) > 0) && (paramptr < params.size()))
1288 params_to_keep.push_back(params[paramptr++]);
1295 if (to_bounce.length())
1297 std::deque<std::string> newparams;
1298 newparams.push_back(params[0]);
1299 newparams.push_back(ConvToStr(ourTS));
1300 newparams.push_back(to_bounce+params_to_bounce);
1301 DoOneToOne(this->Instance->Config->ServerName,"FMODE",newparams,sourceserv);
1304 if (to_keep.length())
1308 modelist[0] = params[0].c_str();
1309 modelist[1] = to_keep.c_str();
1311 if (params_to_keep.size() > 2)
1313 for (q = 2; (q < params_to_keep.size()) && (q < 64); q++)
1315 ServerInstance->Log(DEBUG,"Item %d of %d", q, params_to_keep.size());
1316 modelist[n++] = params_to_keep[q].c_str();
1322 ServerInstance->Log(DEBUG,"Send mode");
1323 this->Instance->SendMode(modelist, n+2, who);
1327 ServerInstance->Log(DEBUG,"Send mode client");
1328 this->Instance->CallCommandHandler("MODE", modelist, n+2, who);
1331 /* HOT POTATO! PASS IT ON! */
1332 DoOneToAllButSender(source,"FMODE",params,sourceserv);
1336 /* U-lined servers always win regardless of their TS */
1337 if ((TS > ourTS) && (!this->Instance->ULine(source.c_str())))
1339 /* Bounce the mode back to its sender.* We use our lower TS, so the other end
1340 * SHOULD accept it, if its clock is right.
1342 * NOTE: We should check that we arent bouncing anything thats already set at this end.
1343 * If we are, bounce +ourmode to 'reinforce' it. This prevents desyncs.
1344 * e.g. They send +l 50, we have +l 10 set. rather than bounce -l 50, we bounce +l 10.
1346 * Thanks to jilles for pointing out this one-hell-of-an-issue before i even finished
1347 * writing the code. It took me a while to come up with this solution.
1349 * XXX: BE SURE YOU UNDERSTAND THIS CODE FULLY BEFORE YOU MESS WITH IT.
1352 std::deque<std::string> newparams; /* New parameter list we send back */
1353 newparams.push_back(params[0]); /* Target, user or channel */
1354 newparams.push_back(ConvToStr(ourTS)); /* Timestamp value of the target */
1355 newparams.push_back(""); /* This contains the mode string. For now
1356 * it's empty, we fill it below.
1359 /* Intelligent mode bouncing. Don't just invert, reinforce any modes which are already
1360 * set to avoid a desync here.
1362 std::string modebounce = "";
1365 ModeHandler* mh = NULL;
1366 char cur_change = 1;
1367 char old_change = 0;
1368 for (std::string::iterator x = params[2].begin(); x != params[2].end(); x++)
1370 /* Iterate over all mode chars in the sent set */
1373 /* Adding or subtracting modes? */
1381 /* Find the mode handler for this mode */
1382 mh = this->Instance->Modes->FindMode(*x, chan ? MODETYPE_CHANNEL : MODETYPE_USER);
1384 /* Got a mode handler?
1385 * This also prevents us bouncing modes we have no handler for.
1392 /* Does the mode require a parameter right now?
1393 * If it does, fetch it if we can
1395 if ((mh->GetNumParams(adding) > 0) && (t < params.size()))
1398 /* Call the ModeSet method to determine if its set with the
1399 * given parameter here or not.
1401 ret = mh->ModeSet(smode ? NULL : who, dst, chan, p);
1403 /* XXX: Really. Dont ask.
1404 * Determine from if its set combined with what the current
1405 * 'state' is (adding or not) as to wether we should 'invert'
1406 * or 'reinforce' the mode change
1408 (!ret.first ? (adding ? cur_change = '-' : cur_change = '+') : (!adding ? cur_change = '-' : cur_change = '+'));
1410 /* Quickly determine if we have 'flipped' from + to -,
1411 * or - to +, to prevent unneccessary +/- chars in the
1412 * output string that waste bandwidth
1414 if (cur_change != old_change)
1415 modebounce += cur_change;
1416 old_change = cur_change;
1418 /* Add the mode character to the output string */
1419 modebounce += mh->GetModeChar();
1421 /* We got a parameter back from ModeHandler::ModeSet,
1422 * are we supposed to be sending one out right now?
1424 if (ret.second.length())
1426 if (mh->GetNumParams(cur_change == '+') > 0)
1427 /* Yes we're supposed to be sending out
1428 * the parameter. Make sure it goes
1430 newparams.push_back(ret.second);
1438 /* Update the parameters for FMODE with the new 'bounced' string */
1439 newparams[2] = modebounce;
1440 /* Only send it back the way it came, no need to send it anywhere else */
1441 DoOneToOne(this->Instance->Config->ServerName,"FMODE",newparams,sourceserv);
1442 ServerInstance->Log(DEBUG,"FMODE bounced intelligently, our TS less than theirs and the other server is NOT a uline.");
1446 ServerInstance->Log(DEBUG,"Allow modes, TS lower for sender");
1447 /* The server was ulined, but something iffy is up with the TS.
1448 * Sound the alarm bells!
1450 if ((this->Instance->ULine(sourceserv.c_str())) && (TS > ourTS))
1452 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());
1454 /* Allow the mode, route it to either server or user command handling */
1456 this->Instance->SendMode(modelist,n,who);
1458 this->Instance->CallCommandHandler("MODE", modelist, n, who);
1460 /* HOT POTATO! PASS IT ON! */
1461 DoOneToAllButSender(source,"FMODE",params,sourceserv);
1463 /* Are we supposed to free the userrec? */
1470 /* FTOPIC command */
1471 bool ForceTopic(std::string source, std::deque<std::string> ¶ms)
1473 if (params.size() != 4)
1475 time_t ts = atoi(params[1].c_str());
1476 std::string nsource = source;
1478 chanrec* c = this->Instance->FindChan(params[0]);
1481 if ((ts >= c->topicset) || (!*c->topic))
1483 std::string oldtopic = c->topic;
1484 strlcpy(c->topic,params[3].c_str(),MAXTOPIC);
1485 strlcpy(c->setby,params[2].c_str(),NICKMAX-1);
1487 /* if the topic text is the same as the current topic,
1488 * dont bother to send the TOPIC command out, just silently
1489 * update the set time and set nick.
1491 if (oldtopic != params[3])
1493 userrec* user = this->Instance->FindNick(source);
1496 c->WriteChannelWithServ(source.c_str(), "TOPIC %s :%s", c->name, c->topic);
1500 c->WriteChannel(user, "TOPIC %s :%s", c->name, c->topic);
1501 nsource = user->server;
1503 /* all done, send it on its way */
1504 params[3] = ":" + params[3];
1505 DoOneToAllButSender(source,"FTOPIC",params,nsource);
1514 /* FJOIN, similar to unreal SJOIN */
1515 bool ForceJoin(std::string source, std::deque<std::string> ¶ms)
1517 if (params.size() < 3)
1521 char modestring[MAXBUF];
1522 char* mode_users[127];
1523 memset(&mode_users,0,sizeof(mode_users));
1524 mode_users[0] = first;
1525 mode_users[1] = modestring;
1526 strcpy(modestring,"+");
1527 unsigned int modectr = 2;
1529 userrec* who = NULL;
1530 std::string channel = params[0];
1531 time_t TS = atoi(params[1].c_str());
1534 chanrec* chan = this->Instance->FindChan(channel);
1539 strlcpy(mode_users[0],channel.c_str(),MAXBUF);
1541 /* default is a high value, which if we dont have this
1542 * channel will let the other side apply their modes.
1544 time_t ourTS = time(NULL)+600;
1545 chanrec* us = this->Instance->FindChan(channel);
1551 ServerInstance->Log(DEBUG,"FJOIN detected, our TS=%lu, their TS=%lu",ourTS,TS);
1553 irc::tokenstream users(params[2]);
1554 std::string item = "*";
1556 /* do this first, so our mode reversals are correctly received by other servers
1557 * if there is a TS collision.
1559 params[2] = ":" + params[2];
1560 DoOneToAllButSender(source,"FJOIN",params,source);
1563 item = users.GetToken();
1564 /* process one user at a time, applying modes. */
1565 char* usr = (char*)item.c_str();
1566 /* Safety check just to make sure someones not sent us an FJOIN full of spaces
1567 * (is this even possible?) */
1570 char* permissions = usr;
1572 while ((*permissions) && (*permissions != ','))
1574 ModeHandler* mh = ServerInstance->Modes->FindPrefix(*permissions);
1578 charlcat(modestring,mh->GetModeChar(),MAXBUF);
1582 this->Instance->WriteOpers("ERROR: We received a user with an unknown prefix '%c'. Closed connection to avoid a desync.",mh->GetPrefix());
1583 this->WriteLine(std::string("ERROR :Invalid prefix '")+mh->GetModeChar()+"' in FJOIN");
1591 /* Did they get any modes? How many times? */
1592 for (int k = 0; k < ntimes; k++)
1593 mode_users[modectr++] = strdup(usr); // XXX
1595 who = this->Instance->FindNick(usr);
1598 chanrec::JoinUser(this->Instance, who, channel.c_str(), true, key);
1599 if (modectr >= (MAXMODES-1))
1601 /* theres a mode for this user. push them onto the mode queue, and flush it
1602 * if there are more than MAXMODES to go.
1604 if ((ourTS >= TS) || (this->Instance->ULine(who->server)))
1606 /* We also always let u-lined clients win, no matter what the TS value */
1607 ServerInstance->Log(DEBUG,"Our our channel newer than theirs, accepting their modes");
1608 this->Instance->SendMode((const char**)mode_users,modectr,who);
1611 ServerInstance->Log(DEFAULT,"Channel TS for %s changed from %lu to %lu",us->name,ourTS,TS);
1618 ServerInstance->Log(DEBUG,"Their channel newer than ours, bouncing their modes");
1619 /* bouncy bouncy! */
1620 std::deque<std::string> params;
1621 /* modes are now being UNSET... */
1622 *mode_users[1] = '-';
1623 for (unsigned int x = 0; x < modectr; x++)
1627 params.push_back(ConvToStr(us->age));
1629 params.push_back(mode_users[x]);
1632 // tell everyone to bounce the modes. bad modes, bad!
1633 DoOneToMany(this->Instance->Config->ServerName,"FMODE",params);
1635 strcpy(mode_users[1],"+");
1636 for (unsigned int f = 2; f < modectr; f++)
1637 free(mode_users[f]);
1643 ServerInstance->Log(SPARSE,"Warning! Invalid user %s in FJOIN to channel %s IGNORED", who->nick, channel.c_str());
1648 /* there werent enough modes built up to flush it during FJOIN,
1649 * or, there are a number left over. flush them out.
1651 if ((modectr > 2) && (who) && (us))
1655 ServerInstance->Log(DEBUG,"Our our channel newer than theirs, accepting their modes");
1656 this->Instance->SendMode((const char**)mode_users,modectr,who);
1659 ServerInstance->Log(DEFAULT,"Channel TS for %s changed from %lu to %lu",us->name,ourTS,TS);
1666 ServerInstance->Log(DEBUG,"Their channel newer than ours, bouncing their modes");
1667 std::deque<std::string> params;
1668 *mode_users[1] = '-';
1669 for (unsigned int x = 0; x < modectr; x++)
1673 params.push_back(ConvToStr(us->age));
1675 params.push_back(mode_users[x]);
1677 DoOneToMany(this->Instance->Config->ServerName,"FMODE",params);
1680 for (unsigned int f = 2; f < modectr; f++)
1681 free(mode_users[f]);
1687 bool IntroduceClient(std::string source, std::deque<std::string> ¶ms)
1689 if (params.size() < 8)
1691 if (params.size() > 8)
1693 this->WriteLine(std::string(":")+this->Instance->Config->ServerName+" KILL "+params[1]+" :Invalid client introduction ("+params[1]+"?)");
1696 // NICK age nick host dhost ident +modes ip :gecos
1698 time_t age = atoi(params[0].c_str());
1700 /* This used to have a pretty craq'y loop doing the same thing,
1701 * now we just let the STL do the hard work (more efficiently)
1703 std::string::size_type pos_after_plus = params[5].find_first_not_of('+');
1704 if (pos_after_plus != std::string::npos)
1705 params[5] = params[5].substr(pos_after_plus);
1707 const char* tempnick = params[1].c_str();
1708 ServerInstance->Log(DEBUG,"Introduce client %s!%s@%s",tempnick,params[4].c_str(),params[2].c_str());
1710 user_hash::iterator iter = this->Instance->clientlist.find(tempnick);
1712 if (iter != this->Instance->clientlist.end())
1715 ServerInstance->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);
1716 this->WriteLine(std::string(":")+this->Instance->Config->ServerName+" KILL "+tempnick+" :Nickname collision");
1720 userrec* _new = new userrec(this->Instance);
1721 this->Instance->clientlist[tempnick] = _new;
1722 _new->SetFd(FD_MAGIC_NUMBER);
1723 strlcpy(_new->nick, tempnick,NICKMAX-1);
1724 strlcpy(_new->host, params[2].c_str(),63);
1725 strlcpy(_new->dhost, params[3].c_str(),63);
1726 _new->server = this->Instance->FindServerNamePtr(source.c_str());
1727 strlcpy(_new->ident, params[4].c_str(),IDENTMAX);
1728 strlcpy(_new->fullname, params[7].c_str(),MAXGECOS);
1729 _new->registered = REG_ALL;
1732 for (std::string::iterator v = params[5].begin(); v != params[5].end(); v++)
1733 _new->modes[(*v)-65] = 1;
1735 #ifdef SUPPORT_IP6LINKS
1736 if (params[6].find_first_of(":") != std::string::npos)
1737 _new->SetSockAddr(AF_INET6, params[6].c_str(), 0);
1740 _new->SetSockAddr(AF_INET, params[6].c_str(), 0);
1742 this->Instance->SNO->WriteToSnoMask('C',"Client connecting at %s: %s!%s@%s [%s]",_new->server,_new->nick,_new->ident,_new->host, _new->GetIPString());
1744 params[7] = ":" + params[7];
1745 DoOneToAllButSender(source,"NICK",params,source);
1747 // Increment the Source Servers User Count..
1748 TreeServer* SourceServer = FindServer(source);
1751 ServerInstance->Log(DEBUG,"Found source server of %s",_new->nick);
1752 SourceServer->AddUserCount();
1758 /* Send one or more FJOINs for a channel of users.
1759 * If the length of a single line is more than 480-NICKMAX
1760 * in length, it is split over multiple lines.
1762 void SendFJoins(TreeServer* Current, chanrec* c)
1764 ServerInstance->Log(DEBUG,"Sending FJOINs to other server for %s",c->name);
1766 std::string individual_halfops = std::string(":")+this->Instance->Config->ServerName+" FMODE "+c->name+" "+ConvToStr(c->age);
1768 size_t dlen, curlen;
1769 dlen = curlen = snprintf(list,MAXBUF,":%s FJOIN %s %lu",this->Instance->Config->ServerName,c->name,(unsigned long)c->age);
1771 char* ptr = list + dlen;
1773 CUList *ulist = c->GetUsers();
1774 std::vector<userrec*> specific_halfop;
1775 std::vector<userrec*> specific_voice;
1776 std::string modes = "";
1777 std::string params = "";
1779 for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
1781 // The first parameter gets a : before it
1782 size_t ptrlen = snprintf(ptr, MAXBUF, " %s%s,%s", !numusers ? ":" : "", c->GetAllPrefixChars(i->second), i->second->nick);
1789 if (curlen > (480-NICKMAX))
1791 this->WriteLine(list);
1792 dlen = curlen = snprintf(list,MAXBUF,":%s FJOIN %s %lu",this->Instance->Config->ServerName,c->name,(unsigned long)c->age);
1800 this->WriteLine(list);
1802 for (BanList::iterator b = c->bans.begin(); b != c->bans.end(); b++)
1805 params.append(b->data).append(" ");
1807 this->WriteLine(std::string(":")+this->Instance->Config->ServerName+" FMODE "+c->name+" "+ConvToStr(c->age)+" +"+c->ChanModes(true)+modes+" "+params);
1810 /* Send G, Q, Z and E lines */
1811 void SendXLines(TreeServer* Current)
1814 std::string n = this->Instance->Config->ServerName;
1815 const char* sn = n.c_str();
1817 /* Yes, these arent too nice looking, but they get the job done */
1818 for (std::vector<ZLine>::iterator i = Instance->XLines->zlines.begin(); i != Instance->XLines->zlines.end(); i++, iterations++)
1820 snprintf(data,MAXBUF,":%s ADDLINE Z %s %s %lu %lu :%s",sn,i->ipaddr,i->source,(unsigned long)i->set_time,(unsigned long)i->duration,i->reason);
1821 this->WriteLine(data);
1823 for (std::vector<QLine>::iterator i = Instance->XLines->qlines.begin(); i != Instance->XLines->qlines.end(); i++, iterations++)
1825 snprintf(data,MAXBUF,":%s ADDLINE Q %s %s %lu %lu :%s",sn,i->nick,i->source,(unsigned long)i->set_time,(unsigned long)i->duration,i->reason);
1826 this->WriteLine(data);
1828 for (std::vector<GLine>::iterator i = Instance->XLines->glines.begin(); i != Instance->XLines->glines.end(); i++, iterations++)
1830 snprintf(data,MAXBUF,":%s ADDLINE G %s %s %lu %lu :%s",sn,i->hostmask,i->source,(unsigned long)i->set_time,(unsigned long)i->duration,i->reason);
1831 this->WriteLine(data);
1833 for (std::vector<ELine>::iterator i = Instance->XLines->elines.begin(); i != Instance->XLines->elines.end(); i++, iterations++)
1835 snprintf(data,MAXBUF,":%s ADDLINE E %s %s %lu %lu :%s",sn,i->hostmask,i->source,(unsigned long)i->set_time,(unsigned long)i->duration,i->reason);
1836 this->WriteLine(data);
1838 for (std::vector<ZLine>::iterator i = Instance->XLines->pzlines.begin(); i != Instance->XLines->pzlines.end(); i++, iterations++)
1840 snprintf(data,MAXBUF,":%s ADDLINE Z %s %s %lu %lu :%s",sn,i->ipaddr,i->source,(unsigned long)i->set_time,(unsigned long)i->duration,i->reason);
1841 this->WriteLine(data);
1843 for (std::vector<QLine>::iterator i = Instance->XLines->pqlines.begin(); i != Instance->XLines->pqlines.end(); i++, iterations++)
1845 snprintf(data,MAXBUF,":%s ADDLINE Q %s %s %lu %lu :%s",sn,i->nick,i->source,(unsigned long)i->set_time,(unsigned long)i->duration,i->reason);
1846 this->WriteLine(data);
1848 for (std::vector<GLine>::iterator i = Instance->XLines->pglines.begin(); i != Instance->XLines->pglines.end(); i++, iterations++)
1850 snprintf(data,MAXBUF,":%s ADDLINE G %s %s %lu %lu :%s",sn,i->hostmask,i->source,(unsigned long)i->set_time,(unsigned long)i->duration,i->reason);
1851 this->WriteLine(data);
1853 for (std::vector<ELine>::iterator i = Instance->XLines->pelines.begin(); i != Instance->XLines->pelines.end(); i++, iterations++)
1855 snprintf(data,MAXBUF,":%s ADDLINE E %s %s %lu %lu :%s",sn,i->hostmask,i->source,(unsigned long)i->set_time,(unsigned long)i->duration,i->reason);
1856 this->WriteLine(data);
1860 /* Send channel modes and topics */
1861 void SendChannelModes(TreeServer* Current)
1864 std::deque<std::string> list;
1866 std::string n = this->Instance->Config->ServerName;
1867 const char* sn = n.c_str();
1868 for (chan_hash::iterator c = this->Instance->chanlist.begin(); c != this->Instance->chanlist.end(); c++, iterations++)
1870 SendFJoins(Current, c->second);
1871 if (*c->second->topic)
1873 snprintf(data,MAXBUF,":%s FTOPIC %s %lu %s :%s",sn,c->second->name,(unsigned long)c->second->topicset,c->second->setby,c->second->topic);
1874 this->WriteLine(data);
1876 FOREACH_MOD_I(this->Instance,I_OnSyncChannel,OnSyncChannel(c->second,(Module*)TreeProtocolModule,(void*)this));
1878 c->second->GetExtList(list);
1879 for (unsigned int j = 0; j < list.size(); j++)
1881 FOREACH_MOD_I(this->Instance,I_OnSyncChannelMetaData,OnSyncChannelMetaData(c->second,(Module*)TreeProtocolModule,(void*)this,list[j]));
1886 /* send all users and their oper state/modes */
1887 void SendUsers(TreeServer* Current)
1890 std::deque<std::string> list;
1892 for (user_hash::iterator u = this->Instance->clientlist.begin(); u != this->Instance->clientlist.end(); u++, iterations++)
1894 if (u->second->registered == REG_ALL)
1896 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);
1897 this->WriteLine(data);
1898 if (*u->second->oper)
1900 this->WriteLine(":"+std::string(u->second->nick)+" OPERTYPE "+std::string(u->second->oper));
1902 if (*u->second->awaymsg)
1904 this->WriteLine(":"+std::string(u->second->nick)+" AWAY :"+std::string(u->second->awaymsg));
1906 FOREACH_MOD_I(this->Instance,I_OnSyncUser,OnSyncUser(u->second,(Module*)TreeProtocolModule,(void*)this));
1908 u->second->GetExtList(list);
1909 for (unsigned int j = 0; j < list.size(); j++)
1911 FOREACH_MOD_I(this->Instance,I_OnSyncUserMetaData,OnSyncUserMetaData(u->second,(Module*)TreeProtocolModule,(void*)this,list[j]));
1917 /* This function is called when we want to send a netburst to a local
1918 * server. There is a set order we must do this, because for example
1919 * users require their servers to exist, and channels require their
1920 * users to exist. You get the idea.
1922 void DoBurst(TreeServer* s)
1924 std::string burst = "BURST "+ConvToStr(time(NULL));
1925 std::string endburst = "ENDBURST";
1926 // Because by the end of the netburst, it could be gone!
1927 std::string name = s->GetName();
1928 this->Instance->SNO->WriteToSnoMask('l',"Bursting to \2"+name+"\2.");
1929 this->WriteLine(burst);
1930 /* send our version string */
1931 this->WriteLine(std::string(":")+this->Instance->Config->ServerName+" VERSION :"+this->Instance->GetVersionString());
1932 /* Send server tree */
1933 this->SendServers(TreeRoot,s,1);
1934 /* Send users and their oper status */
1936 /* Send everything else (channel modes, xlines etc) */
1937 this->SendChannelModes(s);
1938 this->SendXLines(s);
1939 FOREACH_MOD_I(this->Instance,I_OnSyncOtherMetaData,OnSyncOtherMetaData((Module*)TreeProtocolModule,(void*)this));
1940 this->WriteLine(endburst);
1941 this->Instance->SNO->WriteToSnoMask('l',"Finished bursting to \2"+name+"\2.");
1944 /* This function is called when we receive data from a remote
1945 * server. We buffer the data in a std::string (it doesnt stay
1946 * there for long), reading using InspSocket::Read() which can
1947 * read up to 16 kilobytes in one operation.
1949 * IF THIS FUNCTION RETURNS FALSE, THE CORE CLOSES AND DELETES
1950 * THE SOCKET OBJECT FOR US.
1952 virtual bool OnDataReady()
1954 char* data = this->Read();
1955 /* Check that the data read is a valid pointer and it has some content */
1958 this->in_buffer.append(data);
1959 /* While there is at least one new line in the buffer,
1960 * do something useful (we hope!) with it.
1962 while (in_buffer.find("\n") != std::string::npos)
1964 std::string ret = in_buffer.substr(0,in_buffer.find("\n")-1);
1965 in_buffer = in_buffer.substr(in_buffer.find("\n")+1,in_buffer.length()-in_buffer.find("\n"));
1966 if (ret.find("\r") != std::string::npos)
1967 ret = in_buffer.substr(0,in_buffer.find("\r")-1);
1968 /* Process this one, abort if it
1969 * didnt return true.
1975 memset(result,0,1024);
1977 ServerInstance->Log(DEBUG,"Original string '%s'",ret.c_str());
1978 /* ERROR + CAPAB is still allowed unencryped */
1979 if ((ret.substr(0,7) != "ERROR :") && (ret.substr(0,6) != "CAPAB "))
1981 int nbytes = from64tobits(out, ret.c_str(), 1024);
1982 if ((nbytes > 0) && (nbytes < 1024))
1984 ServerInstance->Log(DEBUG,"m_spanningtree: decrypt %d bytes",nbytes);
1985 ctx_in->Decrypt(out, result, nbytes, 0);
1986 for (int t = 0; t < nbytes; t++)
1987 if (result[t] == '\7') result[t] = 0;
1992 if (!this->ProcessLine(ret))
1994 ServerInstance->Log(DEBUG,"ProcessLine says no!");
2000 /* EAGAIN returns an empty but non-NULL string, so this
2001 * evaluates to TRUE for EAGAIN but to FALSE for EOF.
2003 return (data && !*data);
2006 int WriteLine(std::string line)
2008 ServerInstance->Log(DEBUG,"OUT: %s",line.c_str());
2012 char result64[10240];
2013 if (this->keylength)
2015 // pad it to the key length
2016 int n = this->keylength - (line.length() % this->keylength);
2019 ServerInstance->Log(DEBUG,"Append %d chars to line to make it %d long from %d, key length %d",n,n+line.length(),line.length(),this->keylength);
2020 line.append(n,'\7');
2023 unsigned int ll = line.length();
2024 ctx_out->Encrypt(line.c_str(), result, ll, 0);
2025 to64frombits((unsigned char*)result64,(unsigned char*)result,ll);
2027 //int from64tobits(char *out, const char *in, int maxlen);
2029 return this->Write(line + "\r\n");
2032 /* Handle ERROR command */
2033 bool Error(std::deque<std::string> ¶ms)
2035 if (params.size() < 1)
2037 this->Instance->SNO->WriteToSnoMask('l',"ERROR from %s: %s",(InboundServerName != "" ? InboundServerName.c_str() : myhost.c_str()),params[0].c_str());
2038 /* we will return false to cause the socket to close. */
2042 /* remote MOTD. leet, huh? */
2043 bool Motd(std::string prefix, std::deque<std::string> ¶ms)
2045 if (params.size() > 0)
2047 if (this->Instance->MatchText(this->Instance->Config->ServerName, params[0]))
2049 /* It's for our server */
2050 string_list results;
2051 userrec* source = this->Instance->FindNick(prefix);
2055 std::deque<std::string> par;
2056 par.push_back(prefix);
2059 if (!ServerInstance->Config->MOTD.size())
2061 par[1] = std::string("::")+ServerInstance->Config->ServerName+" 422 "+source->nick+" :Message of the day file is missing.";
2062 DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
2066 par[1] = std::string("::")+ServerInstance->Config->ServerName+" 375 "+source->nick+" :"+ServerInstance->Config->ServerName+" message of the day";
2067 DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
2069 for (unsigned int i = 0; i < ServerInstance->Config->MOTD.size(); i++)
2071 par[1] = std::string("::")+ServerInstance->Config->ServerName+" 372 "+source->nick+" :- "+ServerInstance->Config->MOTD[i];
2072 DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
2075 par[1] = std::string("::")+ServerInstance->Config->ServerName+" 376 "+source->nick+" End of message of the day.";
2076 DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
2082 userrec* source = this->Instance->FindNick(prefix);
2084 DoOneToOne(prefix, "MOTD", params, params[0]);
2090 /* remote ADMIN. leet, huh? */
2091 bool Admin(std::string prefix, std::deque<std::string> ¶ms)
2093 if (params.size() > 0)
2095 if (this->Instance->MatchText(this->Instance->Config->ServerName, params[0]))
2097 /* It's for our server */
2098 string_list results;
2099 userrec* source = this->Instance->FindNick(prefix);
2103 std::deque<std::string> par;
2104 par.push_back(prefix);
2107 par[1] = std::string("::")+ServerInstance->Config->ServerName+" 256 "+source->nick+" :Administrative info for "+ServerInstance->Config->ServerName;
2108 DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
2110 par[1] = std::string("::")+ServerInstance->Config->ServerName+" 257 "+source->nick+" :Name - "+ServerInstance->Config->AdminName;
2111 DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
2113 par[1] = std::string("::")+ServerInstance->Config->ServerName+" 258 "+source->nick+" :Nickname - "+ServerInstance->Config->AdminNick;
2114 DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
2116 par[1] = std::string("::")+ServerInstance->Config->ServerName+" 258 "+source->nick+" :E-Mail - "+ServerInstance->Config->AdminEmail;
2117 DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
2123 userrec* source = this->Instance->FindNick(prefix);
2125 DoOneToOne(prefix, "ADMIN", params, params[0]);
2131 bool Stats(std::string prefix, std::deque<std::string> ¶ms)
2133 /* Get the reply to a STATS query if it matches this servername,
2134 * and send it back as a load of PUSH queries
2136 if (params.size() > 1)
2138 if (this->Instance->MatchText(this->Instance->Config->ServerName, params[1]))
2140 /* It's for our server */
2141 string_list results;
2142 userrec* source = this->Instance->FindNick(prefix);
2145 std::deque<std::string> par;
2146 par.push_back(prefix);
2148 DoStats(this->Instance, *(params[0].c_str()), source, results);
2149 for (size_t i = 0; i < results.size(); i++)
2151 par[1] = "::" + results[i];
2152 DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
2159 userrec* source = this->Instance->FindNick(prefix);
2161 DoOneToOne(prefix, "STATS", params, params[1]);
2168 /* Because the core won't let users or even SERVERS set +o,
2169 * we use the OPERTYPE command to do this.
2171 bool OperType(std::string prefix, std::deque<std::string> ¶ms)
2173 if (params.size() != 1)
2175 ServerInstance->Log(DEBUG,"Received invalid oper type from %s",prefix.c_str());
2178 std::string opertype = params[0];
2179 userrec* u = this->Instance->FindNick(prefix);
2182 u->modes[UM_OPERATOR] = 1;
2183 strlcpy(u->oper,opertype.c_str(),NICKMAX-1);
2184 DoOneToAllButSender(u->nick,"OPERTYPE",params,u->server);
2189 /* Because Andy insists that services-compatible servers must
2190 * implement SVSNICK and SVSJOIN, that's exactly what we do :p
2192 bool ForceNick(std::string prefix, std::deque<std::string> ¶ms)
2194 if (params.size() < 3)
2197 userrec* u = this->Instance->FindNick(params[0]);
2201 DoOneToAllButSender(prefix,"SVSNICK",params,prefix);
2204 std::deque<std::string> par;
2205 par.push_back(params[1]);
2206 /* This is not required as one is sent in OnUserPostNick below
2208 //DoOneToMany(u->nick,"NICK",par);
2209 if (!u->ForceNickChange(params[1].c_str()))
2211 userrec::QuitUser(this->Instance, u, "Nickname collision");
2214 u->age = atoi(params[2].c_str());
2220 bool ServiceJoin(std::string prefix, std::deque<std::string> ¶ms)
2222 if (params.size() < 2)
2225 userrec* u = this->Instance->FindNick(params[0]);
2229 chanrec::JoinUser(this->Instance, u, params[1].c_str(), false);
2230 DoOneToAllButSender(prefix,"SVSJOIN",params,prefix);
2235 bool RemoteRehash(std::string prefix, std::deque<std::string> ¶ms)
2237 if (params.size() < 1)
2240 std::string servermask = params[0];
2242 if (this->Instance->MatchText(this->Instance->Config->ServerName,servermask))
2244 this->Instance->SNO->WriteToSnoMask('l',"Remote rehash initiated from server \002"+prefix+"\002.");
2245 this->Instance->RehashServer();
2246 ReadConfiguration(false);
2248 DoOneToAllButSender(prefix,"REHASH",params,prefix);
2252 bool RemoteKill(std::string prefix, std::deque<std::string> ¶ms)
2254 if (params.size() != 2)
2257 std::string nick = params[0];
2258 userrec* u = this->Instance->FindNick(prefix);
2259 userrec* who = this->Instance->FindNick(nick);
2263 /* Prepend kill source, if we don't have one */
2264 std::string sourceserv = prefix;
2267 sourceserv = u->server;
2269 if (*(params[1].c_str()) != '[')
2271 params[1] = "[" + sourceserv + "] Killed (" + params[1] +")";
2273 std::string reason = params[1];
2274 params[1] = ":" + params[1];
2275 DoOneToAllButSender(prefix,"KILL",params,sourceserv);
2276 who->Write(":%s KILL %s :%s (%s)", sourceserv.c_str(), who->nick, sourceserv.c_str(), reason.c_str());
2277 userrec::QuitUser(this->Instance,who,reason);
2282 bool LocalPong(std::string prefix, std::deque<std::string> ¶ms)
2284 if (params.size() < 1)
2287 if (params.size() == 1)
2289 TreeServer* ServerSource = FindServer(prefix);
2292 ServerSource->SetPingFlag();
2297 std::string forwardto = params[1];
2298 if (forwardto == this->Instance->Config->ServerName)
2301 * this is a PONG for us
2302 * if the prefix is a user, check theyre local, and if they are,
2303 * dump the PONG reply back to their fd. If its a server, do nowt.
2304 * Services might want to send these s->s, but we dont need to yet.
2306 userrec* u = this->Instance->FindNick(prefix);
2310 u->WriteServ("PONG %s %s",params[0].c_str(),params[1].c_str());
2315 // not for us, pass it on :)
2316 DoOneToOne(prefix,"PONG",params,forwardto);
2323 bool MetaData(std::string prefix, std::deque<std::string> ¶ms)
2325 if (params.size() < 3)
2328 TreeServer* ServerSource = FindServer(prefix);
2332 if (params[0] == "*")
2334 FOREACH_MOD_I(this->Instance,I_OnDecodeMetaData,OnDecodeMetaData(TYPE_OTHER,NULL,params[1],params[2]));
2336 else if (*(params[0].c_str()) == '#')
2338 chanrec* c = this->Instance->FindChan(params[0]);
2341 FOREACH_MOD_I(this->Instance,I_OnDecodeMetaData,OnDecodeMetaData(TYPE_CHANNEL,c,params[1],params[2]));
2344 else if (*(params[0].c_str()) != '#')
2346 userrec* u = this->Instance->FindNick(params[0]);
2349 FOREACH_MOD_I(this->Instance,I_OnDecodeMetaData,OnDecodeMetaData(TYPE_USER,u,params[1],params[2]));
2354 params[2] = ":" + params[2];
2355 DoOneToAllButSender(prefix,"METADATA",params,prefix);
2359 bool ServerVersion(std::string prefix, std::deque<std::string> ¶ms)
2361 if (params.size() < 1)
2364 TreeServer* ServerSource = FindServer(prefix);
2368 ServerSource->SetVersion(params[0]);
2370 params[0] = ":" + params[0];
2371 DoOneToAllButSender(prefix,"VERSION",params,prefix);
2375 bool ChangeHost(std::string prefix, std::deque<std::string> ¶ms)
2377 if (params.size() < 1)
2380 userrec* u = this->Instance->FindNick(prefix);
2384 u->ChangeDisplayedHost(params[0].c_str());
2385 DoOneToAllButSender(prefix,"FHOST",params,u->server);
2390 bool AddLine(std::string prefix, std::deque<std::string> ¶ms)
2392 if (params.size() < 6)
2395 bool propogate = false;
2397 switch (*(params[0].c_str()))
2400 propogate = ServerInstance->XLines->add_zline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
2401 ServerInstance->XLines->zline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
2404 propogate = ServerInstance->XLines->add_qline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
2405 ServerInstance->XLines->qline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
2408 propogate = ServerInstance->XLines->add_eline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
2409 ServerInstance->XLines->eline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
2412 propogate = ServerInstance->XLines->add_gline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
2413 ServerInstance->XLines->gline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
2416 propogate = ServerInstance->XLines->add_kline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
2419 /* Just in case... */
2420 this->Instance->SNO->WriteToSnoMask('x',"\2WARNING\2: Invalid xline type '"+params[0]+"' sent by server "+prefix+", ignored!");
2425 /* Send it on its way */
2428 if (atoi(params[4].c_str()))
2430 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());
2434 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());
2436 params[5] = ":" + params[5];
2437 DoOneToAllButSender(prefix,"ADDLINE",params,prefix);
2439 if (!this->bursting)
2441 ServerInstance->Log(DEBUG,"Applying lines...");
2442 ServerInstance->XLines->apply_lines(APPLY_ZLINES|APPLY_GLINES|APPLY_QLINES);
2447 bool ChangeName(std::string prefix, std::deque<std::string> ¶ms)
2449 if (params.size() < 1)
2452 userrec* u = this->Instance->FindNick(prefix);
2456 u->ChangeName(params[0].c_str());
2457 params[0] = ":" + params[0];
2458 DoOneToAllButSender(prefix,"FNAME",params,u->server);
2463 bool Whois(std::string prefix, std::deque<std::string> ¶ms)
2465 if (params.size() < 1)
2468 ServerInstance->Log(DEBUG,"In IDLE command");
2469 userrec* u = this->Instance->FindNick(prefix);
2473 ServerInstance->Log(DEBUG,"USER EXISTS: %s",u->nick);
2474 // an incoming request
2475 if (params.size() == 1)
2477 userrec* x = this->Instance->FindNick(params[0]);
2478 if ((x) && (IS_LOCAL(x)))
2480 userrec* x = this->Instance->FindNick(params[0]);
2481 ServerInstance->Log(DEBUG,"Got IDLE");
2482 char signon[MAXBUF];
2484 ServerInstance->Log(DEBUG,"Sending back IDLE 3");
2485 snprintf(signon,MAXBUF,"%lu",(unsigned long)x->signon);
2486 snprintf(idle,MAXBUF,"%lu",(unsigned long)abs((x->idle_lastmsg)-time(NULL)));
2487 std::deque<std::string> par;
2488 par.push_back(prefix);
2489 par.push_back(signon);
2490 par.push_back(idle);
2491 // ours, we're done, pass it BACK
2492 DoOneToOne(params[0],"IDLE",par,u->server);
2496 // not ours pass it on
2497 DoOneToOne(prefix,"IDLE",params,x->server);
2500 else if (params.size() == 3)
2502 std::string who_did_the_whois = params[0];
2503 userrec* who_to_send_to = this->Instance->FindNick(who_did_the_whois);
2504 if ((who_to_send_to) && (IS_LOCAL(who_to_send_to)))
2506 ServerInstance->Log(DEBUG,"Got final IDLE");
2507 // an incoming reply to a whois we sent out
2508 std::string nick_whoised = prefix;
2509 unsigned long signon = atoi(params[1].c_str());
2510 unsigned long idle = atoi(params[2].c_str());
2511 if ((who_to_send_to) && (IS_LOCAL(who_to_send_to)))
2512 do_whois(this->Instance,who_to_send_to,u,signon,idle,nick_whoised.c_str());
2516 // not ours, pass it on
2517 DoOneToOne(prefix,"IDLE",params,who_to_send_to->server);
2524 bool Push(std::string prefix, std::deque<std::string> ¶ms)
2526 if (params.size() < 2)
2529 userrec* u = this->Instance->FindNick(params[0]);
2536 u->Write(params[1]);
2540 // continue the raw onwards
2541 params[1] = ":" + params[1];
2542 DoOneToOne(prefix,"PUSH",params,u->server);
2547 bool Time(std::string prefix, std::deque<std::string> ¶ms)
2549 // :source.server TIME remote.server sendernick
2550 // :remote.server TIME source.server sendernick TS
2551 if (params.size() == 2)
2553 // someone querying our time?
2554 if (this->Instance->Config->ServerName == params[0])
2556 userrec* u = this->Instance->FindNick(params[1]);
2560 snprintf(curtime,256,"%lu",(unsigned long)time(NULL));
2561 params.push_back(curtime);
2563 DoOneToOne(this->Instance->Config->ServerName,"TIME",params,params[0]);
2568 // not us, pass it on
2569 userrec* u = this->Instance->FindNick(params[1]);
2571 DoOneToOne(prefix,"TIME",params,params[0]);
2574 else if (params.size() == 3)
2576 // a response to a previous TIME
2577 userrec* u = this->Instance->FindNick(params[1]);
2578 if ((u) && (IS_LOCAL(u)))
2580 time_t rawtime = atol(params[2].c_str());
2581 struct tm * timeinfo;
2582 timeinfo = localtime(&rawtime);
2584 snprintf(tms,26,"%s",asctime(timeinfo));
2586 u->WriteServ("391 %s %s :%s",u->nick,prefix.c_str(),tms);
2591 DoOneToOne(prefix,"TIME",params,u->server);
2597 bool LocalPing(std::string prefix, std::deque<std::string> ¶ms)
2599 if (params.size() < 1)
2602 if (params.size() == 1)
2604 std::string stufftobounce = params[0];
2605 this->WriteLine(std::string(":")+this->Instance->Config->ServerName+" PONG "+stufftobounce);
2610 std::string forwardto = params[1];
2611 if (forwardto == this->Instance->Config->ServerName)
2613 // this is a ping for us, send back PONG to the requesting server
2614 params[1] = params[0];
2615 params[0] = forwardto;
2616 DoOneToOne(forwardto,"PONG",params,params[1]);
2620 // not for us, pass it on :)
2621 DoOneToOne(prefix,"PING",params,forwardto);
2627 bool RemoteServer(std::string prefix, std::deque<std::string> ¶ms)
2629 if (params.size() < 4)
2632 std::string servername = params[0];
2633 std::string password = params[1];
2634 // hopcount is not used for a remote server, we calculate this ourselves
2635 std::string description = params[3];
2636 TreeServer* ParentOfThis = FindServer(prefix);
2640 this->WriteLine("ERROR :Protocol error - Introduced remote server from unknown server "+prefix);
2643 TreeServer* CheckDupe = FindServer(servername);
2646 this->WriteLine("ERROR :Server "+servername+" already exists!");
2647 this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+servername+"\2 denied, already exists");
2650 TreeServer* Node = new TreeServer(this->Instance,servername,description,ParentOfThis,NULL);
2651 ParentOfThis->AddChild(Node);
2652 params[3] = ":" + params[3];
2653 DoOneToAllButSender(prefix,"SERVER",params,prefix);
2654 this->Instance->SNO->WriteToSnoMask('l',"Server \002"+prefix+"\002 introduced server \002"+servername+"\002 ("+description+")");
2658 bool Outbound_Reply_Server(std::deque<std::string> ¶ms)
2660 if (params.size() < 4)
2663 irc::string servername = params[0].c_str();
2664 std::string sname = params[0];
2665 std::string password = params[1];
2666 int hops = atoi(params[2].c_str());
2670 this->WriteLine("ERROR :Server too far away for authentication");
2671 this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, server is too far away for authentication");
2674 std::string description = params[3];
2675 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
2677 if ((x->Name == servername) && (x->RecvPass == password))
2679 TreeServer* CheckDupe = FindServer(sname);
2682 this->WriteLine("ERROR :Server "+sname+" already exists on server "+CheckDupe->GetParent()->GetName()+"!");
2683 this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, already exists on server "+CheckDupe->GetParent()->GetName());
2686 // Begin the sync here. this kickstarts the
2687 // other side, waiting in WAIT_AUTH_2 state,
2688 // into starting their burst, as it shows
2689 // that we're happy.
2690 this->LinkState = CONNECTED;
2691 // we should add the details of this server now
2692 // to the servers tree, as a child of the root
2694 TreeServer* Node = new TreeServer(this->Instance,sname,description,TreeRoot,this);
2695 TreeRoot->AddChild(Node);
2696 params[3] = ":" + params[3];
2697 DoOneToAllButSender(TreeRoot->GetName(),"SERVER",params,sname);
2698 this->bursting = true;
2699 this->DoBurst(Node);
2703 this->WriteLine("ERROR :Invalid credentials");
2704 this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, invalid link credentials");
2708 bool Inbound_Server(std::deque<std::string> ¶ms)
2710 if (params.size() < 4)
2713 irc::string servername = params[0].c_str();
2714 std::string sname = params[0];
2715 std::string password = params[1];
2716 int hops = atoi(params[2].c_str());
2720 this->WriteLine("ERROR :Server too far away for authentication");
2721 this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, server is too far away for authentication");
2724 std::string description = params[3];
2725 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
2727 if ((x->Name == servername) && (x->RecvPass == password))
2729 TreeServer* CheckDupe = FindServer(sname);
2732 this->WriteLine("ERROR :Server "+sname+" already exists on server "+CheckDupe->GetParent()->GetName()+"!");
2733 this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, already exists on server "+CheckDupe->GetParent()->GetName());
2736 /* If the config says this link is encrypted, but the remote side
2737 * hasnt bothered to send the AES command before SERVER, then we
2738 * boot them off as we MUST have this connection encrypted.
2740 if ((x->EncryptionKey != "") && (!this->ctx_in))
2742 this->WriteLine("ERROR :This link requires AES encryption to be enabled. Plaintext connection refused.");
2743 this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, remote server did not enable AES.");
2746 this->Instance->SNO->WriteToSnoMask('l',"Verified incoming server connection from \002"+sname+"\002["+(x->HiddenFromStats ? "<hidden>" : this->GetIP())+"] ("+description+")");
2747 this->InboundServerName = sname;
2748 this->InboundDescription = description;
2749 // this is good. Send our details: Our server name and description and hopcount of 0,
2750 // along with the sendpass from this block.
2751 this->WriteLine(std::string("SERVER ")+this->Instance->Config->ServerName+" "+x->SendPass+" 0 :"+this->Instance->Config->ServerDesc);
2752 // move to the next state, we are now waiting for THEM.
2753 this->LinkState = WAIT_AUTH_2;
2757 this->WriteLine("ERROR :Invalid credentials");
2758 this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, invalid link credentials");
2762 void Split(std::string line, std::deque<std::string> &n)
2765 irc::tokenstream tokens(line);
2767 while ((param = tokens.GetToken()) != "")
2772 bool ProcessLine(std::string line)
2774 std::deque<std::string> params;
2775 irc::string command;
2781 line = line.substr(0, line.find_first_of("\r\n"));
2783 ServerInstance->Log(DEBUG,"IN: %s", line.c_str());
2785 this->Split(line.c_str(),params);
2787 if ((params[0][0] == ':') && (params.size() > 1))
2789 prefix = params[0].substr(1);
2793 command = params[0].c_str();
2796 if ((!this->ctx_in) && (command == "AES"))
2798 std::string sserv = params[0];
2799 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
2801 if ((x->EncryptionKey != "") && (x->Name == sserv))
2803 this->InitAES(x->EncryptionKey,sserv);
2809 else if ((this->ctx_in) && (command == "AES"))
2811 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());
2814 switch (this->LinkState)
2819 // Waiting for SERVER command from remote server. Server initiating
2820 // the connection sends the first SERVER command, listening server
2821 // replies with theirs if its happy, then if the initiator is happy,
2822 // it starts to send its net sync, which starts the merge, otherwise
2823 // it sends an ERROR.
2824 if (command == "PASS")
2826 /* Silently ignored */
2828 else if (command == "SERVER")
2830 return this->Inbound_Server(params);
2832 else if (command == "ERROR")
2834 return this->Error(params);
2836 else if (command == "USER")
2838 this->WriteLine("ERROR :Client connections to this port are prohibited.");
2841 else if (command == "CAPAB")
2843 return this->Capab(params);
2845 else if ((command == "U") || (command == "S"))
2847 this->WriteLine("ERROR :Cannot use the old-style mesh linking protocol with m_spanningtree.so!");
2852 this->WriteLine("ERROR :Invalid command in negotiation phase.");
2857 // Waiting for start of other side's netmerge to say they liked our
2859 if (command == "SERVER")
2861 // cant do this, they sent it to us in the WAIT_AUTH_1 state!
2865 else if ((command == "U") || (command == "S"))
2867 this->WriteLine("ERROR :Cannot use the old-style mesh linking protocol with m_spanningtree.so!");
2870 else if (command == "BURST")
2874 /* If a time stamp is provided, try and check syncronization */
2875 time_t THEM = atoi(params[0].c_str());
2876 long delta = THEM-time(NULL);
2877 if ((delta < -600) || (delta > 600))
2879 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));
2880 this->WriteLine("ERROR :Your clocks are out by "+ConvToStr(abs(delta))+" seconds (this is more than ten minutes). Link aborted, PLEASE SYNC YOUR CLOCKS!");
2883 else if ((delta < -60) || (delta > 60))
2885 this->Instance->SNO->WriteToSnoMask('l',"\2WARNING\2: Your clocks are out by %d seconds, please consider synching your clocks.",abs(delta));
2888 this->LinkState = CONNECTED;
2889 Node = new TreeServer(this->Instance,InboundServerName,InboundDescription,TreeRoot,this);
2890 TreeRoot->AddChild(Node);
2892 params.push_back(InboundServerName);
2893 params.push_back("*");
2894 params.push_back("1");
2895 params.push_back(":"+InboundDescription);
2896 DoOneToAllButSender(TreeRoot->GetName(),"SERVER",params,InboundServerName);
2897 this->bursting = true;
2898 this->DoBurst(Node);
2900 else if (command == "ERROR")
2902 return this->Error(params);
2904 else if (command == "CAPAB")
2906 return this->Capab(params);
2911 this->WriteLine("ERROR :Internal error -- listening socket accepted its own descriptor!!!");
2915 if (command == "SERVER")
2917 // another server we connected to, which was in WAIT_AUTH_1 state,
2918 // has just sent us their credentials. If we get this far, theyre
2919 // happy with OUR credentials, and they are now in WAIT_AUTH_2 state.
2920 // if we're happy with this, we should send our netburst which
2921 // kickstarts the merge.
2922 return this->Outbound_Reply_Server(params);
2924 else if (command == "ERROR")
2926 return this->Error(params);
2930 // This is the 'authenticated' state, when all passwords
2931 // have been exchanged and anything past this point is taken
2936 std::string direction = prefix;
2937 userrec* t = this->Instance->FindNick(prefix);
2940 direction = t->server;
2942 TreeServer* route_back_again = BestRouteTo(direction);
2943 if ((!route_back_again) || (route_back_again->GetSocket() != this))
2945 if (route_back_again)
2946 ServerInstance->Log(DEBUG,"Protocol violation: Fake direction in command '%s' from connection '%s'",line.c_str(),this->GetName().c_str());
2951 * When there is activity on the socket, reset the ping counter so
2952 * that we're not wasting bandwidth pinging an active server.
2954 route_back_again->SetNextPingTime(time(NULL) + 60);
2955 route_back_again->SetPingFlag();
2958 if (command == "SVSMODE")
2960 /* Services expects us to implement
2961 * SVSMODE. In inspircd its the same as
2966 std::string target = "";
2967 /* Yes, know, this is a mess. Its reasonably fast though as we're
2968 * working with std::string here.
2970 if ((command == "NICK") && (params.size() > 1))
2972 return this->IntroduceClient(prefix,params);
2974 else if (command == "FJOIN")
2976 return this->ForceJoin(prefix,params);
2978 else if (command == "STATS")
2980 return this->Stats(prefix, params);
2982 else if (command == "MOTD")
2984 return this->Motd(prefix, params);
2986 else if (command == "ADMIN")
2988 return this->Admin(prefix, params);
2990 else if (command == "SERVER")
2992 return this->RemoteServer(prefix,params);
2994 else if (command == "ERROR")
2996 return this->Error(params);
2998 else if (command == "OPERTYPE")
3000 return this->OperType(prefix,params);
3002 else if (command == "FMODE")
3004 return this->ForceMode(prefix,params);
3006 else if (command == "KILL")
3008 return this->RemoteKill(prefix,params);
3010 else if (command == "FTOPIC")
3012 return this->ForceTopic(prefix,params);
3014 else if (command == "REHASH")
3016 return this->RemoteRehash(prefix,params);
3018 else if (command == "METADATA")
3020 return this->MetaData(prefix,params);
3022 else if (command == "PING")
3025 * We just got a ping from a server that's bursting.
3026 * This can't be right, so set them to not bursting, and
3027 * apply their lines.
3031 this->bursting = false;
3032 ServerInstance->XLines->apply_lines(APPLY_ZLINES|APPLY_GLINES|APPLY_QLINES);
3036 prefix = this->GetName();
3038 return this->LocalPing(prefix,params);
3040 else if (command == "PONG")
3043 * We just got a pong from a server that's bursting.
3044 * This can't be right, so set them to not bursting, and
3045 * apply their lines.
3049 this->bursting = false;
3050 ServerInstance->XLines->apply_lines(APPLY_ZLINES|APPLY_GLINES|APPLY_QLINES);
3054 prefix = this->GetName();
3056 return this->LocalPong(prefix,params);
3058 else if (command == "VERSION")
3060 return this->ServerVersion(prefix,params);
3062 else if (command == "FHOST")
3064 return this->ChangeHost(prefix,params);
3066 else if (command == "FNAME")
3068 return this->ChangeName(prefix,params);
3070 else if (command == "ADDLINE")
3072 return this->AddLine(prefix,params);
3074 else if (command == "SVSNICK")
3078 prefix = this->GetName();
3080 return this->ForceNick(prefix,params);
3082 else if (command == "IDLE")
3084 return this->Whois(prefix,params);
3086 else if (command == "PUSH")
3088 return this->Push(prefix,params);
3090 else if (command == "TIME")
3092 return this->Time(prefix,params);
3094 else if ((command == "KICK") && (IsServer(prefix)))
3096 std::string sourceserv = this->myhost;
3097 if (params.size() == 3)
3099 userrec* user = this->Instance->FindNick(params[1]);
3100 chanrec* chan = this->Instance->FindChan(params[0]);
3103 if (!chan->ServerKickUser(user, params[2].c_str(), false))
3104 /* Yikes, the channels gone! */
3108 if (this->InboundServerName != "")
3110 sourceserv = this->InboundServerName;
3112 return DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
3114 else if (command == "SVSJOIN")
3118 prefix = this->GetName();
3120 return this->ServiceJoin(prefix,params);
3122 else if (command == "SQUIT")
3124 if (params.size() == 2)
3126 this->Squit(FindServer(params[0]),params[1]);
3130 else if (command == "ENDBURST")
3132 this->bursting = false;
3133 ServerInstance->XLines->apply_lines(APPLY_ZLINES|APPLY_GLINES|APPLY_QLINES);
3134 std::string sourceserv = this->myhost;
3135 if (this->InboundServerName != "")
3137 sourceserv = this->InboundServerName;
3139 this->Instance->SNO->WriteToSnoMask('l',"Received end of netburst from \2%s\2",sourceserv.c_str());
3144 // not a special inter-server command.
3145 // Emulate the actual user doing the command,
3146 // this saves us having a huge ugly parser.
3147 userrec* who = this->Instance->FindNick(prefix);
3148 std::string sourceserv = this->myhost;
3149 if (this->InboundServerName != "")
3151 sourceserv = this->InboundServerName;
3155 if ((command == "NICK") && (params.size() > 0))
3157 /* On nick messages, check that the nick doesnt
3158 * already exist here. If it does, kill their copy,
3161 userrec* x = this->Instance->FindNick(params[0]);
3162 if ((x) && (x != who))
3164 std::deque<std::string> p;
3165 p.push_back(params[0]);
3166 p.push_back("Nickname collision ("+prefix+" -> "+params[0]+")");
3167 DoOneToMany(this->Instance->Config->ServerName,"KILL",p);
3169 p.push_back(prefix);
3170 p.push_back("Nickname collision");
3171 DoOneToMany(this->Instance->Config->ServerName,"KILL",p);
3172 userrec::QuitUser(this->Instance,x,"Nickname collision ("+prefix+" -> "+params[0]+")");
3173 userrec* y = this->Instance->FindNick(prefix);
3176 userrec::QuitUser(this->Instance,y,"Nickname collision");
3178 return DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
3182 target = who->server;
3183 const char* strparams[127];
3184 for (unsigned int q = 0; q < params.size(); q++)
3186 strparams[q] = params[q].c_str();
3188 if (!this->Instance->CallCommandHandler(command.c_str(), strparams, params.size(), who))
3190 this->WriteLine("ERROR :Unrecognised command '"+std::string(command.c_str())+"' -- possibly loaded mismatched modules");
3196 // its not a user. Its either a server, or somethings screwed up.
3197 if (IsServer(prefix))
3199 target = this->Instance->Config->ServerName;
3203 ServerInstance->Log(DEBUG,"Command with unknown origin '%s'",prefix.c_str());
3207 return DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
3216 virtual std::string GetName()
3218 std::string sourceserv = this->myhost;
3219 if (this->InboundServerName != "")
3221 sourceserv = this->InboundServerName;
3226 virtual void OnTimeout()
3228 if (this->LinkState == CONNECTING)
3230 this->Instance->SNO->WriteToSnoMask('l',"CONNECT: Connection to \002"+myhost+"\002 timed out.");
3231 Link* MyLink = FindLink(myhost);
3237 virtual void OnClose()
3239 // Connection closed.
3240 // If the connection is fully up (state CONNECTED)
3241 // then propogate a netsplit to all peers.
3242 std::string quitserver = this->myhost;
3243 if (this->InboundServerName != "")
3245 quitserver = this->InboundServerName;
3247 TreeServer* s = FindServer(quitserver);
3250 Squit(s,"Remote host closed the connection");
3252 this->Instance->SNO->WriteToSnoMask('l',"Connection to '\2%s\2' failed.",quitserver.c_str());
3255 virtual int OnIncomingConnection(int newsock, char* ip)
3257 /* To prevent anyone from attempting to flood opers/DDoS by connecting to the server port,
3258 * or discovering if this port is the server port, we don't allow connections from any
3259 * IPs for which we don't have a link block.
3263 found = (std::find(ValidIPs.begin(), ValidIPs.end(), ip) != ValidIPs.end());
3266 for (vector<std::string>::iterator i = ValidIPs.begin(); i != ValidIPs.end(); i++)
3267 if (MatchCIDR(ip, (*i).c_str()))
3272 this->Instance->SNO->WriteToSnoMask('l',"Server connection from %s denied (no link blocks with that IP address)", ip);
3277 TreeSocket* s = new TreeSocket(this->Instance, newsock, ip);
3278 s = s; /* Whinge whinge whinge, thats all GCC ever does. */
3283 /** This class is used to resolve server hostnames during /connect and autoconnect.
3284 * As of 1.1, the resolver system is seperated out from InspSocket, so we must do this
3285 * resolver step first ourselves if we need it. This is totally nonblocking, and will
3286 * callback to OnLookupComplete or OnError when completed. Once it has completed we
3287 * will have an IP address which we can then use to continue our connection.
3289 class ServernameResolver : public Resolver
3292 /** A copy of the Link tag info for what we're connecting to.
3293 * We take a copy, rather than using a pointer, just in case the
3294 * admin takes the tag away and rehashes while the domain is resolving.
3298 ServernameResolver(InspIRCd* Instance, const std::string &hostname, Link x) : Resolver(Instance, hostname, DNS_QUERY_FORWARD), MyLink(x)
3300 /* Nothing in here, folks */
3303 void OnLookupComplete(const std::string &result)
3305 /* Initiate the connection, now that we have an IP to use.
3306 * Passing a hostname directly to InspSocket causes it to
3307 * just bail and set its FD to -1.
3309 TreeServer* CheckDupe = FindServer(MyLink.Name.c_str());
3310 if (!CheckDupe) /* Check that nobody tried to connect it successfully while we were resolving */
3312 TreeSocket* newsocket = new TreeSocket(ServerInstance, result,MyLink.Port,false,10,MyLink.Name.c_str());
3313 if (newsocket->GetFd() > -1)
3319 /* Something barfed, show the opers */
3320 ServerInstance->SNO->WriteToSnoMask('l',"CONNECT: Error connecting \002%s\002: %s.",MyLink.Name.c_str(),strerror(errno));
3322 DoFailOver(&MyLink);
3327 void OnError(ResolverError e, const std::string &errormessage)
3330 ServerInstance->SNO->WriteToSnoMask('l',"CONNECT: Error connecting \002%s\002: Unable to resolve hostname - %s",MyLink.Name.c_str(),errormessage.c_str());
3331 DoFailOver(&MyLink);
3335 class SecurityIPResolver : public Resolver
3340 SecurityIPResolver(InspIRCd* Instance, const std::string &hostname, Link x) : Resolver(Instance, hostname, DNS_QUERY_FORWARD), MyLink(x)
3344 void OnLookupComplete(const std::string &result)
3346 ServerInstance->Log(DEBUG,"Security IP cache: Adding IP address '%s' for Link '%s'",result.c_str(),MyLink.Name.c_str());
3347 ValidIPs.push_back(result);
3350 void OnError(ResolverError e, const std::string &errormessage)
3352 ServerInstance->Log(DEBUG,"Could not resolve IP associated with Link '%s': %s",MyLink.Name.c_str(),errormessage.c_str());
3356 void AddThisServer(TreeServer* server, std::deque<TreeServer*> &list)
3358 for (unsigned int c = 0; c < list.size(); c++)
3360 if (list[c] == server)
3365 list.push_back(server);
3368 // returns a list of DIRECT servernames for a specific channel
3369 void GetListOfServersForChannel(chanrec* c, std::deque<TreeServer*> &list)
3371 CUList *ulist = c->GetUsers();
3372 for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
3374 if (i->second->GetFd() < 0)
3376 TreeServer* best = BestRouteTo(i->second->server);
3378 AddThisServer(best,list);
3384 bool DoOneToAllButSenderRaw(std::string data, std::string omit, std::string prefix, irc::string command, std::deque<std::string> ¶ms)
3386 TreeServer* omitroute = BestRouteTo(omit);
3387 if ((command == "NOTICE") || (command == "PRIVMSG"))
3389 if (params.size() >= 2)
3392 if ((*(params[0].c_str()) == '@') || (*(params[0].c_str()) == '%') || (*(params[0].c_str()) == '+'))
3394 params[0] = params[0].substr(1, params[0].length()-1);
3396 if ((*(params[0].c_str()) != '#') && (*(params[0].c_str()) != '$'))
3398 // special routing for private messages/notices
3399 userrec* d = ServerInstance->FindNick(params[0]);
3402 std::deque<std::string> par;
3403 par.push_back(params[0]);
3404 par.push_back(":"+params[1]);
3405 DoOneToOne(prefix,command.c_str(),par,d->server);
3409 else if (*(params[0].c_str()) == '$')
3411 std::deque<std::string> par;
3412 par.push_back(params[0]);
3413 par.push_back(":"+params[1]);
3414 DoOneToAllButSender(prefix,command.c_str(),par,omitroute->GetName());
3419 ServerInstance->Log(DEBUG,"Channel privmsg going to chan %s",params[0].c_str());
3420 chanrec* c = ServerInstance->FindChan(params[0]);
3423 std::deque<TreeServer*> list;
3424 GetListOfServersForChannel(c,list);
3425 ServerInstance->Log(DEBUG,"Got a list of %d servers",list.size());
3426 unsigned int lsize = list.size();
3427 for (unsigned int i = 0; i < lsize; i++)
3429 TreeSocket* Sock = list[i]->GetSocket();
3430 if ((Sock) && (list[i]->GetName() != omit) && (omitroute != list[i]))
3432 ServerInstance->Log(DEBUG,"Writing privmsg to server %s",list[i]->GetName().c_str());
3433 Sock->WriteLine(data);
3441 unsigned int items = TreeRoot->ChildCount();
3442 for (unsigned int x = 0; x < items; x++)
3444 TreeServer* Route = TreeRoot->GetChild(x);
3445 if ((Route) && (Route->GetSocket()) && (Route->GetName() != omit) && (omitroute != Route))
3447 TreeSocket* Sock = Route->GetSocket();
3449 Sock->WriteLine(data);
3455 bool DoOneToAllButSender(std::string prefix, std::string command, std::deque<std::string> ¶ms, std::string omit)
3457 TreeServer* omitroute = BestRouteTo(omit);
3458 std::string FullLine = ":" + prefix + " " + command;
3459 unsigned int words = params.size();
3460 for (unsigned int x = 0; x < words; x++)
3462 FullLine = FullLine + " " + params[x];
3464 unsigned int items = TreeRoot->ChildCount();
3465 for (unsigned int x = 0; x < items; x++)
3467 TreeServer* Route = TreeRoot->GetChild(x);
3468 // Send the line IF:
3469 // The route has a socket (its a direct connection)
3470 // The route isnt the one to be omitted
3471 // The route isnt the path to the one to be omitted
3472 if ((Route) && (Route->GetSocket()) && (Route->GetName() != omit) && (omitroute != Route))
3474 TreeSocket* Sock = Route->GetSocket();
3476 Sock->WriteLine(FullLine);
3482 bool DoOneToMany(std::string prefix, std::string command, std::deque<std::string> ¶ms)
3484 std::string FullLine = ":" + prefix + " " + command;
3485 unsigned int words = params.size();
3486 for (unsigned int x = 0; x < words; x++)
3488 FullLine = FullLine + " " + params[x];
3490 unsigned int items = TreeRoot->ChildCount();
3491 for (unsigned int x = 0; x < items; x++)
3493 TreeServer* Route = TreeRoot->GetChild(x);
3494 if (Route && Route->GetSocket())
3496 TreeSocket* Sock = Route->GetSocket();
3498 Sock->WriteLine(FullLine);
3504 bool DoOneToMany(const char* prefix, const char* command, std::deque<std::string> ¶ms)
3506 std::string spfx = prefix;
3507 std::string scmd = command;
3508 return DoOneToMany(spfx, scmd, params);
3511 bool DoOneToAllButSender(const char* prefix, const char* command, std::deque<std::string> ¶ms, std::string omit)
3513 std::string spfx = prefix;
3514 std::string scmd = command;
3515 return DoOneToAllButSender(spfx, scmd, params, omit);
3518 bool DoOneToOne(std::string prefix, std::string command, std::deque<std::string> ¶ms, std::string target)
3520 TreeServer* Route = BestRouteTo(target);
3523 std::string FullLine = ":" + prefix + " " + command;
3524 unsigned int words = params.size();
3525 for (unsigned int x = 0; x < words; x++)
3527 FullLine = FullLine + " " + params[x];
3529 if (Route && Route->GetSocket())
3531 TreeSocket* Sock = Route->GetSocket();
3533 Sock->WriteLine(FullLine);
3543 std::vector<TreeSocket*> Bindings;
3545 void ReadConfiguration(bool rebind)
3547 Conf = new ConfigReader(ServerInstance);
3550 for (int j =0; j < Conf->Enumerate("bind"); j++)
3552 std::string Type = Conf->ReadValue("bind","type",j);
3553 std::string IP = Conf->ReadValue("bind","address",j);
3554 long Port = Conf->ReadInteger("bind","port",j,true);
3555 if (Type == "servers")
3561 TreeSocket* listener = new TreeSocket(ServerInstance, IP.c_str(),Port,true,10);
3562 if (listener->GetState() == I_LISTENING)
3564 Bindings.push_back(listener);
3568 ServerInstance->Log(DEFAULT,"m_spanningtree: Warning: Failed to bind server port %d",Port);
3575 FlatLinks = Conf->ReadFlag("options","flatlinks",0);
3576 HideULines = Conf->ReadFlag("options","hideulines",0);
3579 for (int j =0; j < Conf->Enumerate("link"); j++)
3582 std::string Allow = Conf->ReadValue("link","allowmask",j);
3583 L.Name = (Conf->ReadValue("link","name",j)).c_str();
3584 L.IPAddr = Conf->ReadValue("link","ipaddr",j);
3585 L.FailOver = Conf->ReadValue("link","failover",j).c_str();
3586 L.Port = Conf->ReadInteger("link","port",j,true);
3587 L.SendPass = Conf->ReadValue("link","sendpass",j);
3588 L.RecvPass = Conf->ReadValue("link","recvpass",j);
3589 L.AutoConnect = Conf->ReadInteger("link","autoconnect",j,true);
3590 L.EncryptionKey = Conf->ReadValue("link","encryptionkey",j);
3591 L.HiddenFromStats = Conf->ReadFlag("link","hidden",j);
3592 L.NextConnectTime = time(NULL) + L.AutoConnect;
3593 /* Bugfix by brain, do not allow people to enter bad configurations */
3594 if (L.Name != ServerInstance->Config->ServerName)
3596 if ((L.IPAddr != "") && (L.RecvPass != "") && (L.SendPass != "") && (L.Name != "") && (L.Port))
3598 ValidIPs.push_back(L.IPAddr);
3601 ValidIPs.push_back(Allow);
3603 /* Needs resolving */
3605 if (insp_aton(L.IPAddr.c_str(), &binip) < 1)
3609 SecurityIPResolver* sr = new SecurityIPResolver(ServerInstance, L.IPAddr, L);
3610 ServerInstance->AddResolver(sr);
3612 catch (ModuleException& e)
3614 ServerInstance->Log(DEBUG,"Error in resolver: %s",e.GetReason());
3618 LinkBlocks.push_back(L);
3619 ServerInstance->Log(DEBUG,"m_spanningtree: Read server %s with host %s:%d",L.Name.c_str(),L.IPAddr.c_str(),L.Port);
3625 ServerInstance->Log(DEFAULT,"Invalid configuration for server '%s', IP address not defined!",L.Name.c_str());
3627 else if (L.RecvPass == "")
3629 ServerInstance->Log(DEFAULT,"Invalid configuration for server '%s', recvpass not defined!",L.Name.c_str());
3631 else if (L.SendPass == "")
3633 ServerInstance->Log(DEFAULT,"Invalid configuration for server '%s', sendpass not defined!",L.Name.c_str());
3635 else if (L.Name == "")
3637 ServerInstance->Log(DEFAULT,"Invalid configuration, link tag without a name!");
3641 ServerInstance->Log(DEFAULT,"Invalid configuration for server '%s', no port specified!",L.Name.c_str());
3647 ServerInstance->Log(DEFAULT,"Invalid configuration for server '%s', link tag has the same server name as the local server!",L.Name.c_str());
3654 class ModuleSpanningTree : public Module
3656 std::vector<TreeSocket*> Bindings;
3659 unsigned int max_local;
3660 unsigned int max_global;
3661 cmd_rconnect* command_rconnect;
3665 ModuleSpanningTree(InspIRCd* Me)
3666 : Module::Module(Me), max_local(0), max_global(0)
3671 ::ServerInstance = Me;
3673 // Create the root of the tree
3674 TreeRoot = new TreeServer(ServerInstance, ServerInstance->Config->ServerName, ServerInstance->Config->ServerDesc);
3676 ReadConfiguration(true);
3678 command_rconnect = new cmd_rconnect(ServerInstance, this);
3679 ServerInstance->AddCommand(command_rconnect);
3682 void ShowLinks(TreeServer* Current, userrec* user, int hops)
3684 std::string Parent = TreeRoot->GetName();
3685 if (Current->GetParent())
3687 Parent = Current->GetParent()->GetName();
3689 for (unsigned int q = 0; q < Current->ChildCount(); q++)
3691 if ((HideULines) && (ServerInstance->ULine(Current->GetChild(q)->GetName().c_str())))
3695 ShowLinks(Current->GetChild(q),user,hops+1);
3700 ShowLinks(Current->GetChild(q),user,hops+1);
3703 /* Don't display the line if its a uline, hide ulines is on, and the user isnt an oper */
3704 if ((HideULines) && (ServerInstance->ULine(Current->GetName().c_str())) && (!*user->oper))
3706 user->WriteServ("364 %s %s %s :%d %s",user->nick,Current->GetName().c_str(),(FlatLinks && (!*user->oper)) ? ServerInstance->Config->ServerName : Parent.c_str(),(FlatLinks && (!*user->oper)) ? 0 : hops,Current->GetDesc().c_str());
3709 int CountLocalServs()
3711 return TreeRoot->ChildCount();
3716 return serverlist.size();
3719 void HandleLinks(const char** parameters, int pcnt, userrec* user)
3721 ShowLinks(TreeRoot,user,0);
3722 user->WriteServ("365 %s * :End of /LINKS list.",user->nick);
3726 void HandleLusers(const char** parameters, int pcnt, userrec* user)
3728 unsigned int n_users = ServerInstance->UserCount();
3730 /* Only update these when someone wants to see them, more efficient */
3731 if ((unsigned int)ServerInstance->LocalUserCount() > max_local)
3732 max_local = ServerInstance->LocalUserCount();
3733 if (n_users > max_global)
3734 max_global = n_users;
3736 user->WriteServ("251 %s :There are %d users and %d invisible on %d servers",user->nick,n_users-ServerInstance->InvisibleUserCount(),ServerInstance->InvisibleUserCount(),this->CountServs());
3737 if (ServerInstance->OperCount())
3738 user->WriteServ("252 %s %d :operator(s) online",user->nick,ServerInstance->OperCount());
3739 if (ServerInstance->UnregisteredUserCount())
3740 user->WriteServ("253 %s %d :unknown connections",user->nick,ServerInstance->UnregisteredUserCount());
3741 if (ServerInstance->ChannelCount())
3742 user->WriteServ("254 %s %d :channels formed",user->nick,ServerInstance->ChannelCount());
3743 user->WriteServ("254 %s :I have %d clients and %d servers",user->nick,ServerInstance->LocalUserCount(),this->CountLocalServs());
3744 user->WriteServ("265 %s :Current Local Users: %d Max: %d",user->nick,ServerInstance->LocalUserCount(),max_local);
3745 user->WriteServ("266 %s :Current Global Users: %d Max: %d",user->nick,n_users,max_global);
3749 // WARNING: NOT THREAD SAFE - DONT GET ANY SMART IDEAS.
3751 void ShowMap(TreeServer* Current, userrec* user, int depth, char matrix[128][80], float &totusers, float &totservers)
3755 for (int t = 0; t < depth; t++)
3757 matrix[line][t] = ' ';
3760 // For Aligning, we need to work out exactly how deep this thing is, and produce
3761 // a 'Spacer' String to compensate.
3764 memset(spacer,' ',40);
3765 if ((40 - Current->GetName().length() - depth) > 1) {
3766 spacer[40 - Current->GetName().length() - depth] = '\0';
3775 if (ServerInstance->clientlist.size() == 0) {
3776 // If there are no users, WHO THE HELL DID THE /MAP?!?!?!
3781 percent = ((float)Current->GetUserCount() / (float)ServerInstance->clientlist.size()) * 100;
3783 snprintf(text, 80, "%s %s%5d [%5.2f%%]", Current->GetName().c_str(), spacer, Current->GetUserCount(), percent);
3784 totusers += Current->GetUserCount();
3786 strlcpy(&matrix[line][depth],text,80);
3788 for (unsigned int q = 0; q < Current->ChildCount(); q++)
3790 if ((HideULines) && (ServerInstance->ULine(Current->GetChild(q)->GetName().c_str())))
3794 ShowMap(Current->GetChild(q),user,(FlatLinks && (!*user->oper)) ? depth : depth+2,matrix,totusers,totservers);
3799 ShowMap(Current->GetChild(q),user,(FlatLinks && (!*user->oper)) ? depth : depth+2,matrix,totusers,totservers);
3805 int HandleMotd(const char** parameters, int pcnt, userrec* user)
3809 /* Remote MOTD, the server is within the 1st parameter */
3810 std::deque<std::string> params;
3811 params.push_back(parameters[0]);
3813 /* Send it out remotely, generate no reply yet */
3814 TreeServer* s = FindServerMask(parameters[0]);
3817 DoOneToOne(user->nick, "MOTD", params, s->GetName());
3821 user->WriteServ( "402 %s %s :No such server", user->nick, parameters[0]);
3828 int HandleAdmin(const char** parameters, int pcnt, userrec* user)
3832 /* Remote ADMIN, the server is within the 1st parameter */
3833 std::deque<std::string> params;
3834 params.push_back(parameters[0]);
3836 /* Send it out remotely, generate no reply yet */
3837 TreeServer* s = FindServerMask(parameters[0]);
3840 DoOneToOne(user->nick, "ADMIN", params, s->GetName());
3844 user->WriteServ( "402 %s %s :No such server", user->nick, parameters[0]);
3851 int HandleStats(const char** parameters, int pcnt, userrec* user)
3855 /* Remote STATS, the server is within the 2nd parameter */
3856 std::deque<std::string> params;
3857 params.push_back(parameters[0]);
3858 params.push_back(parameters[1]);
3859 /* Send it out remotely, generate no reply yet */
3860 TreeServer* s = FindServerMask(parameters[1]);
3863 params[1] = s->GetName();
3864 DoOneToOne(user->nick, "STATS", params, s->GetName());
3868 user->WriteServ( "402 %s %s :No such server", user->nick, parameters[0]);
3875 // Ok, prepare to be confused.
3876 // After much mulling over how to approach this, it struck me that
3877 // the 'usual' way of doing a /MAP isnt the best way. Instead of
3878 // keeping track of a ton of ascii characters, and line by line
3879 // under recursion working out where to place them using multiplications
3880 // and divisons, we instead render the map onto a backplane of characters
3881 // (a character matrix), then draw the branches as a series of "L" shapes
3882 // from the nodes. This is not only friendlier on CPU it uses less stack.
3884 void HandleMap(const char** parameters, int pcnt, userrec* user)
3886 // This array represents a virtual screen which we will
3887 // "scratch" draw to, as the console device of an irc
3888 // client does not provide for a proper terminal.
3890 float totservers = 0;
3891 char matrix[128][80];
3892 for (unsigned int t = 0; t < 128; t++)
3894 matrix[t][0] = '\0';
3897 // The only recursive bit is called here.
3898 ShowMap(TreeRoot,user,0,matrix,totusers,totservers);
3899 // Process each line one by one. The algorithm has a limit of
3900 // 128 servers (which is far more than a spanning tree should have
3901 // anyway, so we're ok). This limit can be raised simply by making
3902 // the character matrix deeper, 128 rows taking 10k of memory.
3903 for (int l = 1; l < line; l++)
3905 // scan across the line looking for the start of the
3906 // servername (the recursive part of the algorithm has placed
3907 // the servers at indented positions depending on what they
3909 int first_nonspace = 0;
3910 while (matrix[l][first_nonspace] == ' ')
3915 // Draw the `- (corner) section: this may be overwritten by
3916 // another L shape passing along the same vertical pane, becoming
3917 // a |- (branch) section instead.
3918 matrix[l][first_nonspace] = '-';
3919 matrix[l][first_nonspace-1] = '`';
3921 // Draw upwards until we hit the parent server, causing possibly
3922 // other corners (`-) to become branches (|-)
3923 while ((matrix[l2][first_nonspace-1] == ' ') || (matrix[l2][first_nonspace-1] == '`'))
3925 matrix[l2][first_nonspace-1] = '|';
3929 // dump the whole lot to the user. This is the easy bit, honest.
3930 for (int t = 0; t < line; t++)
3932 user->WriteServ("006 %s :%s",user->nick,&matrix[t][0]);
3934 float avg_users = totusers / totservers;
3935 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);
3936 user->WriteServ("007 %s :End of /MAP",user->nick);
3940 int HandleSquit(const char** parameters, int pcnt, userrec* user)
3942 TreeServer* s = FindServerMask(parameters[0]);
3947 user->WriteServ("NOTICE %s :*** SQUIT: Foolish mortal, you cannot make a server SQUIT itself! (%s matches local server name)",user->nick,parameters[0]);
3950 TreeSocket* sock = s->GetSocket();
3953 ServerInstance->Log(DEBUG,"Splitting server %s",s->GetName().c_str());
3954 ServerInstance->SNO->WriteToSnoMask('l',"SQUIT: Server \002%s\002 removed from network by %s",parameters[0],user->nick);
3955 sock->Squit(s,"Server quit by "+std::string(user->nick)+"!"+std::string(user->ident)+"@"+std::string(user->host));
3956 ServerInstance->SE->DelFd(sock);
3962 user->WriteServ("NOTICE %s :*** SQUIT: The server \002%s\002 is not directly connected.",user->nick,parameters[0]);
3967 user->WriteServ("NOTICE %s :*** SQUIT: The server \002%s\002 does not exist on the network.",user->nick,parameters[0]);
3972 int HandleTime(const char** parameters, int pcnt, userrec* user)
3974 if ((IS_LOCAL(user)) && (pcnt))
3976 TreeServer* found = FindServerMask(parameters[0]);
3979 // we dont' override for local server
3980 if (found == TreeRoot)
3983 std::deque<std::string> params;
3984 params.push_back(found->GetName());
3985 params.push_back(user->nick);
3986 DoOneToOne(ServerInstance->Config->ServerName,"TIME",params,found->GetName());
3990 user->WriteServ("402 %s %s :No such server",user->nick,parameters[0]);
3996 int HandleRemoteWhois(const char** parameters, int pcnt, userrec* user)
3998 if ((IS_LOCAL(user)) && (pcnt > 1))
4000 userrec* remote = ServerInstance->FindNick(parameters[1]);
4001 if ((remote) && (remote->GetFd() < 0))
4003 std::deque<std::string> params;
4004 params.push_back(parameters[1]);
4005 DoOneToOne(user->nick,"IDLE",params,remote->server);
4010 user->WriteServ("401 %s %s :No such nick/channel",user->nick, parameters[1]);
4011 user->WriteServ("318 %s %s :End of /WHOIS list.",user->nick, parameters[1]);
4018 void DoPingChecks(time_t curtime)
4020 for (unsigned int j = 0; j < TreeRoot->ChildCount(); j++)
4022 TreeServer* serv = TreeRoot->GetChild(j);
4023 TreeSocket* sock = serv->GetSocket();
4026 if (curtime >= serv->NextPingTime())
4028 if (serv->AnsweredLastPing())
4030 sock->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" PING "+serv->GetName());
4031 serv->SetNextPingTime(curtime + 60);
4035 // they didnt answer, boot them
4036 ServerInstance->SNO->WriteToSnoMask('l',"Server \002%s\002 pinged out",serv->GetName().c_str());
4037 sock->Squit(serv,"Ping timeout");
4038 ServerInstance->SE->DelFd(sock);
4048 void ConnectServer(Link* x)
4052 /* Do we already have an IP? If so, no need to resolve it. */
4053 if (insp_aton(x->IPAddr.c_str(), &binip) > 0)
4055 TreeSocket* newsocket = new TreeSocket(ServerInstance, x->IPAddr,x->Port,false,10,x->Name.c_str());
4056 if (newsocket->GetFd() > -1)
4058 /* Handled automatically on success */
4062 ServerInstance->SNO->WriteToSnoMask('l',"CONNECT: Error connecting \002%s\002: %s.",x->Name.c_str(),strerror(errno));
4064 this->DoFailOver(x);
4071 ServernameResolver* snr = new ServernameResolver(ServerInstance,x->IPAddr, *x);
4072 ServerInstance->AddResolver(snr);
4074 catch (ModuleException& e)
4076 ServerInstance->Log(DEBUG,"Error in resolver: %s",e.GetReason());
4077 this->DoFailOver(x);
4082 void DoFailOver(Link* x)
4084 if (x->FailOver.length())
4086 if (x->FailOver == x->Name)
4088 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());
4091 Link* TryThisOne = this->FindLink(x->FailOver.c_str());
4094 ServerInstance->SNO->WriteToSnoMask('l',"FAILOVER: Trying failover link for \002%s\002: \002%s\002...", x->Name.c_str(), TryThisOne->Name.c_str());
4095 ConnectServer(TryThisOne);
4099 ServerInstance->SNO->WriteToSnoMask('l',"FAILOVER: Invalid failover server specified for server \002%s\002, will not follow!", x->Name.c_str());
4104 Link* FindLink(const std::string& name)
4106 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
4108 if (ServerInstance->MatchText(x->Name.c_str(), name.c_str()))
4116 void AutoConnectServers(time_t curtime)
4118 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
4120 if ((x->AutoConnect) && (curtime >= x->NextConnectTime))
4122 ServerInstance->Log(DEBUG,"Auto-Connecting %s",x->Name.c_str());
4123 x->NextConnectTime = curtime + x->AutoConnect;
4124 TreeServer* CheckDupe = FindServer(x->Name.c_str());
4125 if (x->FailOver.length())
4127 TreeServer* CheckFailOver = FindServer(x->FailOver.c_str());
4130 /* The failover for this server is currently a member of the network.
4131 * The failover probably succeeded, where the main link did not.
4132 * Don't try the main link until the failover is gone again.
4139 // an autoconnected server is not connected. Check if its time to connect it
4140 ServerInstance->SNO->WriteToSnoMask('l',"AUTOCONNECT: Auto-connecting server \002%s\002 (%lu seconds until next attempt)",x->Name.c_str(),x->AutoConnect);
4141 this->ConnectServer(&(*x));
4147 int HandleVersion(const char** parameters, int pcnt, userrec* user)
4149 // we've already checked if pcnt > 0, so this is safe
4150 TreeServer* found = FindServerMask(parameters[0]);
4153 std::string Version = found->GetVersion();
4154 user->WriteServ("351 %s :%s",user->nick,Version.c_str());
4155 if (found == TreeRoot)
4157 std::stringstream out(ServerInstance->Config->data005);
4158 std::string token = "";
4159 std::string line5 = "";
4160 int token_counter = 0;
4165 line5 = line5 + token + " ";
4168 if ((token_counter >= 13) || (out.eof() == true))
4170 user->WriteServ("005 %s %s:are supported by this server",user->nick,line5.c_str());
4179 user->WriteServ("402 %s %s :No such server",user->nick,parameters[0]);
4184 int HandleConnect(const char** parameters, int pcnt, userrec* user)
4186 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
4188 if (ServerInstance->MatchText(x->Name.c_str(),parameters[0]))
4190 TreeServer* CheckDupe = FindServer(x->Name.c_str());
4193 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);
4194 ConnectServer(&(*x));
4199 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());
4204 user->WriteServ("NOTICE %s :*** CONNECT: No server matching \002%s\002 could be found in the config file.",user->nick,parameters[0]);
4208 virtual int OnStats(char statschar, userrec* user, string_list &results)
4210 if (statschar == 'c')
4212 for (unsigned int i = 0; i < LinkBlocks.size(); i++)
4214 results.push_back(std::string(ServerInstance->Config->ServerName)+" 213 "+user->nick+" C *@"+(LinkBlocks[i].HiddenFromStats ? "<hidden>" : LinkBlocks[i].IPAddr)+" * "+LinkBlocks[i].Name.c_str()+" "+ConvToStr(LinkBlocks[i].Port)+" "+(LinkBlocks[i].EncryptionKey != "" ? 'e' : '-')+(LinkBlocks[i].AutoConnect ? 'a' : '-')+'s');
4215 results.push_back(std::string(ServerInstance->Config->ServerName)+" 244 "+user->nick+" H * * "+LinkBlocks[i].Name.c_str());
4217 results.push_back(std::string(ServerInstance->Config->ServerName)+" 219 "+user->nick+" "+statschar+" :End of /STATS report");
4218 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);
4224 virtual int OnPreCommand(const std::string &command, const char** parameters, int pcnt, userrec *user, bool validated)
4226 /* If the command doesnt appear to be valid, we dont want to mess with it. */
4230 if (command == "CONNECT")
4232 return this->HandleConnect(parameters,pcnt,user);
4234 else if (command == "STATS")
4236 return this->HandleStats(parameters,pcnt,user);
4238 else if (command == "MOTD")
4240 return this->HandleMotd(parameters,pcnt,user);
4242 else if (command == "ADMIN")
4244 return this->HandleAdmin(parameters,pcnt,user);
4246 else if (command == "SQUIT")
4248 return this->HandleSquit(parameters,pcnt,user);
4250 else if (command == "MAP")
4252 this->HandleMap(parameters,pcnt,user);
4255 else if ((command == "TIME") && (pcnt > 0))
4257 return this->HandleTime(parameters,pcnt,user);
4259 else if (command == "LUSERS")
4261 this->HandleLusers(parameters,pcnt,user);
4264 else if (command == "LINKS")
4266 this->HandleLinks(parameters,pcnt,user);
4269 else if (command == "WHOIS")
4274 return this->HandleRemoteWhois(parameters,pcnt,user);
4277 else if ((command == "VERSION") && (pcnt > 0))
4279 this->HandleVersion(parameters,pcnt,user);
4282 else if (ServerInstance->IsValidModuleCommand(command, pcnt, user))
4284 // this bit of code cleverly routes all module commands
4285 // to all remote severs *automatically* so that modules
4286 // can just handle commands locally, without having
4287 // to have any special provision in place for remote
4288 // commands and linking protocols.
4289 std::deque<std::string> params;
4291 for (int j = 0; j < pcnt; j++)
4293 if (strchr(parameters[j],' '))
4295 params.push_back(":" + std::string(parameters[j]));
4299 params.push_back(std::string(parameters[j]));
4302 ServerInstance->Log(DEBUG,"Globally route '%s'",command.c_str());
4303 DoOneToMany(user->nick,command,params);
4308 virtual void OnGetServerDescription(const std::string &servername,std::string &description)
4310 TreeServer* s = FindServer(servername);
4313 description = s->GetDesc();
4317 virtual void OnUserInvite(userrec* source,userrec* dest,chanrec* channel)
4319 if (IS_LOCAL(source))
4321 std::deque<std::string> params;
4322 params.push_back(dest->nick);
4323 params.push_back(channel->name);
4324 DoOneToMany(source->nick,"INVITE",params);
4328 virtual void OnPostLocalTopicChange(userrec* user, chanrec* chan, const std::string &topic)
4330 std::deque<std::string> params;
4331 params.push_back(chan->name);
4332 params.push_back(":"+topic);
4333 DoOneToMany(user->nick,"TOPIC",params);
4336 virtual void OnWallops(userrec* user, const std::string &text)
4340 std::deque<std::string> params;
4341 params.push_back(":"+text);
4342 DoOneToMany(user->nick,"WALLOPS",params);
4346 virtual void OnUserNotice(userrec* user, void* dest, int target_type, const std::string &text, char status)
4348 if (target_type == TYPE_USER)
4350 userrec* d = (userrec*)dest;
4351 if ((d->GetFd() < 0) && (IS_LOCAL(user)))
4353 std::deque<std::string> params;
4355 params.push_back(d->nick);
4356 params.push_back(":"+text);
4357 DoOneToOne(user->nick,"NOTICE",params,d->server);
4360 else if (target_type == TYPE_CHANNEL)
4364 chanrec *c = (chanrec*)dest;
4367 std::string cname = c->name;
4369 cname = status + cname;
4370 std::deque<TreeServer*> list;
4371 GetListOfServersForChannel(c,list);
4372 unsigned int ucount = list.size();
4373 for (unsigned int i = 0; i < ucount; i++)
4375 TreeSocket* Sock = list[i]->GetSocket();
4377 Sock->WriteLine(":"+std::string(user->nick)+" NOTICE "+cname+" :"+text);
4382 else if (target_type == TYPE_SERVER)
4386 char* target = (char*)dest;
4387 std::deque<std::string> par;
4388 par.push_back(target);
4389 par.push_back(":"+text);
4390 DoOneToMany(user->nick,"NOTICE",par);
4395 virtual void OnUserMessage(userrec* user, void* dest, int target_type, const std::string &text, char status)
4397 if (target_type == TYPE_USER)
4399 // route private messages which are targetted at clients only to the server
4400 // which needs to receive them
4401 userrec* d = (userrec*)dest;
4402 if ((d->GetFd() < 0) && (IS_LOCAL(user)))
4404 std::deque<std::string> params;
4406 params.push_back(d->nick);
4407 params.push_back(":"+text);
4408 DoOneToOne(user->nick,"PRIVMSG",params,d->server);
4411 else if (target_type == TYPE_CHANNEL)
4415 chanrec *c = (chanrec*)dest;
4418 std::string cname = c->name;
4420 cname = status + cname;
4421 std::deque<TreeServer*> list;
4422 GetListOfServersForChannel(c,list);
4423 unsigned int ucount = list.size();
4424 for (unsigned int i = 0; i < ucount; i++)
4426 TreeSocket* Sock = list[i]->GetSocket();
4428 Sock->WriteLine(":"+std::string(user->nick)+" PRIVMSG "+cname+" :"+text);
4433 else if (target_type == TYPE_SERVER)
4437 char* target = (char*)dest;
4438 std::deque<std::string> par;
4439 par.push_back(target);
4440 par.push_back(":"+text);
4441 DoOneToMany(user->nick,"PRIVMSG",par);
4446 virtual void OnBackgroundTimer(time_t curtime)
4448 AutoConnectServers(curtime);
4449 DoPingChecks(curtime);
4452 virtual void OnUserJoin(userrec* user, chanrec* channel)
4454 // Only do this for local users
4458 snprintf(ts,24,"%lu",(unsigned long)channel->age);
4460 std::deque<std::string> params;
4462 params.push_back(channel->name);
4464 /** XXX: The client protocol will IGNORE this parameter.
4465 * We could make use of it if we wanted to keep the TS
4466 * in step if somehow we lose it.
4468 params.push_back(ts);
4470 if (channel->GetUserCounter() > 1)
4472 // not the first in the channel
4473 DoOneToMany(user->nick,"JOIN",params);
4477 // first in the channel, set up their permissions
4478 // and the channel TS with FJOIN.
4480 params.push_back(channel->name);
4481 params.push_back(ts);
4482 params.push_back("@,"+std::string(user->nick));
4483 DoOneToMany(ServerInstance->Config->ServerName,"FJOIN",params);
4488 virtual void OnChangeHost(userrec* user, const std::string &newhost)
4490 // only occurs for local clients
4491 if (user->registered != REG_ALL)
4493 std::deque<std::string> params;
4494 params.push_back(newhost);
4495 DoOneToMany(user->nick,"FHOST",params);
4498 virtual void OnChangeName(userrec* user, const std::string &gecos)
4500 // only occurs for local clients
4501 if (user->registered != REG_ALL)
4503 std::deque<std::string> params;
4504 params.push_back(gecos);
4505 DoOneToMany(user->nick,"FNAME",params);
4508 virtual void OnUserPart(userrec* user, chanrec* channel, const std::string &partmessage)
4512 std::deque<std::string> params;
4513 params.push_back(channel->name);
4514 if (partmessage != "")
4515 params.push_back(":"+partmessage);
4516 DoOneToMany(user->nick,"PART",params);
4520 virtual void OnUserConnect(userrec* user)
4522 char agestr[MAXBUF];
4525 std::deque<std::string> params;
4526 snprintf(agestr,MAXBUF,"%lu",(unsigned long)user->age);
4527 params.push_back(agestr);
4528 params.push_back(user->nick);
4529 params.push_back(user->host);
4530 params.push_back(user->dhost);
4531 params.push_back(user->ident);
4532 params.push_back("+"+std::string(user->FormatModes()));
4533 params.push_back(user->GetIPString());
4534 params.push_back(":"+std::string(user->fullname));
4535 DoOneToMany(ServerInstance->Config->ServerName,"NICK",params);
4537 // User is Local, change needs to be reflected!
4538 TreeServer* SourceServer = FindServer(user->server);
4541 SourceServer->AddUserCount();
4547 virtual void OnUserQuit(userrec* user, const std::string &reason)
4549 if ((IS_LOCAL(user)) && (user->registered == REG_ALL))
4551 std::deque<std::string> params;
4552 params.push_back(":"+reason);
4553 DoOneToMany(user->nick,"QUIT",params);
4555 // Regardless, We need to modify the user Counts..
4556 TreeServer* SourceServer = FindServer(user->server);
4559 SourceServer->DelUserCount();
4564 virtual void OnUserPostNick(userrec* user, const std::string &oldnick)
4568 std::deque<std::string> params;
4569 params.push_back(user->nick);
4570 DoOneToMany(oldnick,"NICK",params);
4574 virtual void OnUserKick(userrec* source, userrec* user, chanrec* chan, const std::string &reason)
4576 if ((source) && (IS_LOCAL(source)))
4578 std::deque<std::string> params;
4579 params.push_back(chan->name);
4580 params.push_back(user->nick);
4581 params.push_back(":"+reason);
4582 DoOneToMany(source->nick,"KICK",params);
4586 std::deque<std::string> params;
4587 params.push_back(chan->name);
4588 params.push_back(user->nick);
4589 params.push_back(":"+reason);
4590 DoOneToMany(ServerInstance->Config->ServerName,"KICK",params);
4594 virtual void OnRemoteKill(userrec* source, userrec* dest, const std::string &reason)
4596 std::deque<std::string> params;
4597 params.push_back(dest->nick);
4598 params.push_back(":"+reason);
4599 DoOneToMany(source->nick,"KILL",params);
4602 virtual void OnRehash(const std::string ¶meter)
4604 if (parameter != "")
4606 std::deque<std::string> params;
4607 params.push_back(parameter);
4608 DoOneToMany(ServerInstance->Config->ServerName,"REHASH",params);
4610 if (ServerInstance->MatchText(ServerInstance->Config->ServerName,parameter))
4612 ServerInstance->WriteOpers("*** Remote rehash initiated from server \002%s\002",ServerInstance->Config->ServerName);
4613 ServerInstance->RehashServer();
4616 ReadConfiguration(false);
4619 // note: the protocol does not allow direct umode +o except
4620 // via NICK with 8 params. sending OPERTYPE infers +o modechange
4622 virtual void OnOper(userrec* user, const std::string &opertype)
4626 std::deque<std::string> params;
4627 params.push_back(opertype);
4628 DoOneToMany(user->nick,"OPERTYPE",params);
4632 void OnLine(userrec* source, const std::string &host, bool adding, char linetype, long duration, const std::string &reason)
4634 if (IS_LOCAL(source))
4637 snprintf(type,8,"%cLINE",linetype);
4638 std::string stype = type;
4641 char sduration[MAXBUF];
4642 snprintf(sduration,MAXBUF,"%ld",duration);
4643 std::deque<std::string> params;
4644 params.push_back(host);
4645 params.push_back(sduration);
4646 params.push_back(":"+reason);
4647 DoOneToMany(source->nick,stype,params);
4651 std::deque<std::string> params;
4652 params.push_back(host);
4653 DoOneToMany(source->nick,stype,params);
4658 virtual void OnAddGLine(long duration, userrec* source, const std::string &reason, const std::string &hostmask)
4660 OnLine(source,hostmask,true,'G',duration,reason);
4663 virtual void OnAddZLine(long duration, userrec* source, const std::string &reason, const std::string &ipmask)
4665 OnLine(source,ipmask,true,'Z',duration,reason);
4668 virtual void OnAddQLine(long duration, userrec* source, const std::string &reason, const std::string &nickmask)
4670 OnLine(source,nickmask,true,'Q',duration,reason);
4673 virtual void OnAddELine(long duration, userrec* source, const std::string &reason, const std::string &hostmask)
4675 OnLine(source,hostmask,true,'E',duration,reason);
4678 virtual void OnDelGLine(userrec* source, const std::string &hostmask)
4680 OnLine(source,hostmask,false,'G',0,"");
4683 virtual void OnDelZLine(userrec* source, const std::string &ipmask)
4685 OnLine(source,ipmask,false,'Z',0,"");
4688 virtual void OnDelQLine(userrec* source, const std::string &nickmask)
4690 OnLine(source,nickmask,false,'Q',0,"");
4693 virtual void OnDelELine(userrec* source, const std::string &hostmask)
4695 OnLine(source,hostmask,false,'E',0,"");
4698 virtual void OnMode(userrec* user, void* dest, int target_type, const std::string &text)
4700 if ((IS_LOCAL(user)) && (user->registered == REG_ALL))
4702 if (target_type == TYPE_USER)
4704 userrec* u = (userrec*)dest;
4705 std::deque<std::string> params;
4706 params.push_back(u->nick);
4707 params.push_back(text);
4708 DoOneToMany(user->nick,"MODE",params);
4712 chanrec* c = (chanrec*)dest;
4713 std::deque<std::string> params;
4714 params.push_back(c->name);
4715 params.push_back(text);
4716 DoOneToMany(user->nick,"MODE",params);
4721 virtual void OnSetAway(userrec* user)
4725 std::deque<std::string> params;
4726 params.push_back(":"+std::string(user->awaymsg));
4727 DoOneToMany(user->nick,"AWAY",params);
4731 virtual void OnCancelAway(userrec* user)
4735 std::deque<std::string> params;
4737 DoOneToMany(user->nick,"AWAY",params);
4741 virtual void ProtoSendMode(void* opaque, int target_type, void* target, const std::string &modeline)
4743 TreeSocket* s = (TreeSocket*)opaque;
4746 if (target_type == TYPE_USER)
4748 userrec* u = (userrec*)target;
4749 s->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" FMODE "+u->nick+" "+ConvToStr(u->age)+" "+modeline);
4753 chanrec* c = (chanrec*)target;
4754 s->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" FMODE "+c->name+" "+ConvToStr(c->age)+" "+modeline);
4759 virtual void ProtoSendMetaData(void* opaque, int target_type, void* target, const std::string &extname, const std::string &extdata)
4761 TreeSocket* s = (TreeSocket*)opaque;
4764 if (target_type == TYPE_USER)
4766 userrec* u = (userrec*)target;
4767 s->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" METADATA "+u->nick+" "+extname+" :"+extdata);
4769 else if (target_type == TYPE_OTHER)
4771 s->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" METADATA * "+extname+" :"+extdata);
4773 else if (target_type == TYPE_CHANNEL)
4775 chanrec* c = (chanrec*)target;
4776 s->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" METADATA "+c->name+" "+extname+" :"+extdata);
4781 virtual void OnEvent(Event* event)
4783 if (event->GetEventID() == "send_metadata")
4785 std::deque<std::string>* params = (std::deque<std::string>*)event->GetData();
4786 if (params->size() < 3)
4788 (*params)[2] = ":" + (*params)[2];
4789 DoOneToMany(ServerInstance->Config->ServerName,"METADATA",*params);
4791 else if (event->GetEventID() == "send_mode")
4793 std::deque<std::string>* params = (std::deque<std::string>*)event->GetData();
4794 if (params->size() < 2)
4796 // Insert the TS value of the object, either userrec or chanrec
4798 userrec* a = ServerInstance->FindNick((*params)[0]);
4805 chanrec* a = ServerInstance->FindChan((*params)[0]);
4811 params->insert(params->begin() + 1,ConvToStr(ourTS));
4812 DoOneToMany(ServerInstance->Config->ServerName,"FMODE",*params);
4816 virtual ~ModuleSpanningTree()
4820 virtual Version GetVersion()
4822 return Version(1,0,0,0,VF_STATIC|VF_VENDOR);
4825 void Implements(char* List)
4827 List[I_OnPreCommand] = List[I_OnGetServerDescription] = List[I_OnUserInvite] = List[I_OnPostLocalTopicChange] = 1;
4828 List[I_OnWallops] = List[I_OnUserNotice] = List[I_OnUserMessage] = List[I_OnBackgroundTimer] = 1;
4829 List[I_OnUserJoin] = List[I_OnChangeHost] = List[I_OnChangeName] = List[I_OnUserPart] = List[I_OnUserConnect] = 1;
4830 List[I_OnUserQuit] = List[I_OnUserPostNick] = List[I_OnUserKick] = List[I_OnRemoteKill] = List[I_OnRehash] = 1;
4831 List[I_OnOper] = List[I_OnAddGLine] = List[I_OnAddZLine] = List[I_OnAddQLine] = List[I_OnAddELine] = 1;
4832 List[I_OnDelGLine] = List[I_OnDelZLine] = List[I_OnDelQLine] = List[I_OnDelELine] = List[I_ProtoSendMode] = List[I_OnMode] = 1;
4833 List[I_OnStats] = List[I_ProtoSendMetaData] = List[I_OnEvent] = List[I_OnSetAway] = List[I_OnCancelAway] = 1;
4836 /* It is IMPORTANT that m_spanningtree is the last module in the chain
4837 * so that any activity it sees is FINAL, e.g. we arent going to send out
4838 * a NICK message before m_cloaking has finished putting the +x on the user,
4840 * Therefore, we return PRIORITY_LAST to make sure we end up at the END of
4841 * the module call queue.
4843 Priority Prioritize()
4845 return PRIORITY_LAST;
4849 void DoFailOver(Link* x)
4851 TreeProtocolModule->DoFailOver(x);
4854 Link* FindLink(const std::string& name)
4856 return TreeProtocolModule->FindLink(name);
4859 class ModuleSpanningTreeFactory : public ModuleFactory
4862 ModuleSpanningTreeFactory()
4866 ~ModuleSpanningTreeFactory()
4870 virtual Module * CreateModule(InspIRCd* Me)
4872 TreeProtocolModule = new ModuleSpanningTree(Me);
4873 return TreeProtocolModule;
4879 extern "C" void * init_module( void )
4881 return new ModuleSpanningTreeFactory;