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 = 1101;
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.
182 class TreeServer : public classbase
184 InspIRCd* ServerInstance; /* Creator */
185 TreeServer* Parent; /* Parent entry */
186 TreeServer* Route; /* Route entry */
187 std::vector<TreeServer*> Children; /* List of child objects */
188 irc::string ServerName; /* Server's name */
189 std::string ServerDesc; /* Server's description */
190 std::string VersionString; /* Version string or empty string */
191 int UserCount; /* Not used in this version */
192 int OperCount; /* Not used in this version */
193 TreeSocket* Socket; /* For directly connected servers this points at the socket object */
194 time_t NextPing; /* After this time, the server should be PINGed*/
195 bool LastPingWasGood; /* True if the server responded to the last PING with a PONG */
199 /** We don't use this constructor. Its a dummy, and won't cause any insertion
200 * of the TreeServer into the hash_map. See below for the two we DO use.
202 TreeServer(InspIRCd* Instance) : ServerInstance(Instance)
208 UserCount = OperCount = 0;
209 VersionString = ServerInstance->GetVersionString();
212 /** We use this constructor only to create the 'root' item, TreeRoot, which
213 * represents our own server. Therefore, it has no route, no parent, and
214 * no socket associated with it. Its version string is our own local version.
216 TreeServer(InspIRCd* Instance, std::string Name, std::string Desc) : ServerInstance(Instance), ServerName(Name.c_str()), ServerDesc(Desc)
220 UserCount = OperCount = 0;
221 VersionString = ServerInstance->GetVersionString();
223 Socket = NULL; /* Fix by brain */
227 /** When we create a new server, we call this constructor to initialize it.
228 * This constructor initializes the server's Route and Parent, and sets up
229 * its ping counters so that it will be pinged one minute from now.
231 TreeServer(InspIRCd* Instance, std::string Name, std::string Desc, TreeServer* Above, TreeSocket* Sock)
232 : ServerInstance(Instance), Parent(Above), ServerName(Name.c_str()), ServerDesc(Desc), Socket(Sock)
235 UserCount = OperCount = 0;
236 this->SetNextPingTime(time(NULL) + 60);
239 /* find the 'route' for this server (e.g. the one directly connected
240 * to the local server, which we can use to reach it)
242 * In the following example, consider we have just added a TreeServer
243 * class for server G on our network, of which we are server A.
244 * To route traffic to G (marked with a *) we must send the data to
245 * B (marked with a +) so this algorithm initializes the 'Route'
246 * value to point at whichever server traffic must be routed through
247 * to get here. If we were to try this algorithm with server B,
248 * the Route pointer would point at its own object ('this').
258 * We only run this algorithm when a server is created, as
259 * the routes remain constant while ever the server exists, and
260 * do not need to be re-calculated.
264 if (Route == TreeRoot)
270 while (this->Route->GetParent() != TreeRoot)
272 this->Route = Route->GetParent();
276 /* Because recursive code is slow and takes a lot of resources,
277 * we store two representations of the server tree. The first
278 * is a recursive structure where each server references its
279 * children and its parent, which is used for netbursts and
280 * netsplits to dump the whole dataset to the other server,
281 * and the second is used for very fast lookups when routing
282 * messages and is instead a hash_map, where each item can
283 * be referenced by its server name. The AddHashEntry()
284 * call below automatically inserts each TreeServer class
285 * into the hash_map as it is created. There is a similar
286 * maintainance call in the destructor to tidy up deleted
290 this->AddHashEntry();
293 int QuitUsers(const std::string &reason)
295 ServerInstance->Log(DEBUG,"Removing all users from server %s",this->ServerName.c_str());
296 const char* reason_s = reason.c_str();
297 std::vector<userrec*> time_to_die;
298 for (user_hash::iterator n = ServerInstance->clientlist.begin(); n != ServerInstance->clientlist.end(); n++)
300 if (!strcmp(n->second->server, this->ServerName.c_str()))
302 time_to_die.push_back(n->second);
305 for (std::vector<userrec*>::iterator n = time_to_die.begin(); n != time_to_die.end(); n++)
307 userrec* a = (userrec*)*n;
308 ServerInstance->Log(DEBUG,"Kill %s fd=%d",a->nick,a->GetFd());
310 userrec::QuitUser(ServerInstance,a,reason_s);
312 return time_to_die.size();
315 /** This method is used to add the structure to the
316 * hash_map for linear searches. It is only called
317 * by the constructors.
321 server_hash::iterator iter;
322 iter = serverlist.find(this->ServerName.c_str());
323 if (iter == serverlist.end())
324 serverlist[this->ServerName.c_str()] = this;
327 /** This method removes the reference to this object
328 * from the hash_map which is used for linear searches.
329 * It is only called by the default destructor.
333 server_hash::iterator iter;
334 iter = serverlist.find(this->ServerName.c_str());
335 if (iter != serverlist.end())
336 serverlist.erase(iter);
339 /** These accessors etc should be pretty self-
342 TreeServer* GetRoute()
347 std::string GetName()
349 return ServerName.c_str();
352 std::string GetDesc()
357 std::string GetVersion()
359 return VersionString;
362 void SetNextPingTime(time_t t)
365 LastPingWasGood = false;
368 time_t NextPingTime()
373 bool AnsweredLastPing()
375 return LastPingWasGood;
380 LastPingWasGood = true;
403 TreeSocket* GetSocket()
408 TreeServer* GetParent()
413 void SetVersion(std::string Version)
415 VersionString = Version;
418 unsigned int ChildCount()
420 return Children.size();
423 TreeServer* GetChild(unsigned int n)
425 if (n < Children.size())
427 /* Make sure they cant request
428 * an out-of-range object. After
429 * all we know what these programmer
430 * types are like *grin*.
440 void AddChild(TreeServer* Child)
442 Children.push_back(Child);
445 bool DelChild(TreeServer* Child)
447 for (std::vector<TreeServer*>::iterator a = Children.begin(); a < Children.end(); a++)
458 /** Removes child nodes of this node, and of that node, etc etc.
459 * This is used during netsplits to automatically tidy up the
460 * server tree. It is slow, we don't use it for much else.
464 bool stillchildren = true;
465 while (stillchildren)
467 stillchildren = false;
468 for (std::vector<TreeServer*>::iterator a = Children.begin(); a < Children.end(); a++)
470 TreeServer* s = (TreeServer*)*a;
474 stillchildren = true;
483 /* We'd better tidy up after ourselves, eh? */
484 this->DelHashEntry();
488 /** The Link class might as well be a struct,
489 * but this is C++ and we don't believe in structs (!).
490 * It holds the entire information of one <link>
491 * tag from the main config file. We maintain a list
492 * of them, and populate the list on rehash/load.
494 class Link : public classbase
500 std::string SendPass;
501 std::string RecvPass;
502 unsigned long AutoConnect;
503 time_t NextConnectTime;
504 std::string EncryptionKey;
505 bool HiddenFromStats;
506 irc::string FailOver;
509 void DoFailOver(Link* x);
510 Link* FindLink(const std::string& name);
512 /* The usual stuff for inspircd modules,
513 * plus the vector of Link classes which we
514 * use to store the <link> tags from the config
518 std::vector<Link> LinkBlocks;
520 /** Yay for fast searches!
521 * This is hundreds of times faster than recursion
522 * or even scanning a linked list, especially when
523 * there are more than a few servers to deal with.
526 TreeServer* FindServer(std::string ServerName)
528 server_hash::iterator iter;
529 iter = serverlist.find(ServerName.c_str());
530 if (iter != serverlist.end())
540 /** Returns the locally connected server we must route a
541 * message through to reach server 'ServerName'. This
542 * only applies to one-to-one and not one-to-many routing.
543 * See the comments for the constructor of TreeServer
546 TreeServer* BestRouteTo(std::string ServerName)
548 if (ServerName.c_str() == TreeRoot->GetName())
550 TreeServer* Found = FindServer(ServerName);
553 return Found->GetRoute();
561 /** Find the first server matching a given glob mask.
562 * Theres no find-using-glob method of hash_map [awwww :-(]
563 * so instead, we iterate over the list using an iterator
564 * and match each one until we get a hit. Yes its slow,
567 TreeServer* FindServerMask(std::string ServerName)
569 for (server_hash::iterator i = serverlist.begin(); i != serverlist.end(); i++)
571 if (match(i->first.c_str(),ServerName.c_str()))
577 /* A convenient wrapper that returns true if a server exists */
578 bool IsServer(std::string ServerName)
580 return (FindServer(ServerName) != NULL);
584 class cmd_rconnect : public command_t
588 cmd_rconnect (InspIRCd* Instance, Module* Callback) : command_t(Instance, "RCONNECT", 'o', 2), Creator(Callback)
590 this->source = "m_spanningtree.so";
591 syntax = "<remote-server-mask> <servermask>";
594 CmdResult Handle (const char** parameters, int pcnt, userrec *user)
596 user->WriteServ("NOTICE %s :*** RCONNECT: Sending remote connect to \002%s\002 to connect server \002%s\002.",user->nick,parameters[0],parameters[1]);
597 /* Is this aimed at our server? */
598 if (ServerInstance->MatchText(ServerInstance->Config->ServerName,parameters[0]))
600 /* Yes, initiate the given connect */
601 ServerInstance->SNO->WriteToSnoMask('l',"Remote CONNECT from %s matching \002%s\002, connecting server \002%s\002",user->nick,parameters[0],parameters[1]);
603 para[0] = parameters[1];
604 std::string original_command = std::string("CONNECT ") + parameters[1];
605 Creator->OnPreCommand("CONNECT", para, 1, user, true, original_command);
616 /** Every SERVER connection inbound or outbound is represented by
617 * an object of type TreeSocket.
618 * TreeSockets, being inherited from InspSocket, can be tied into
619 * the core socket engine, and we cn therefore receive activity events
620 * for them, just like activex objects on speed. (yes really, that
621 * is a technical term!) Each of these which relates to a locally
622 * connected server is assocated with it, by hooking it onto a
623 * TreeSocket class using its constructor. In this way, we can
624 * maintain a list of servers, some of which are directly connected,
625 * some of which are not.
627 class TreeSocket : public InspSocket
630 std::string in_buffer;
631 ServerState LinkState;
632 std::string InboundServerName;
633 std::string InboundDescription;
635 int num_lost_servers;
637 bool LastPingWasGood;
641 unsigned int keylength;
642 std::string ModuleList;
643 std::map<std::string,std::string> CapKeys;
647 /** Because most of the I/O gubbins are encapsulated within
648 * InspSocket, we just call the superclass constructor for
649 * most of the action, and append a few of our own values
652 TreeSocket(InspIRCd* SI, std::string host, int port, bool listening, unsigned long maxtime)
653 : InspSocket(SI, host, port, listening, maxtime)
656 this->LinkState = LISTENER;
658 this->ctx_out = NULL;
661 TreeSocket(InspIRCd* SI, std::string host, int port, bool listening, unsigned long maxtime, std::string ServerName)
662 : InspSocket(SI, host, port, listening, maxtime)
665 this->LinkState = CONNECTING;
667 this->ctx_out = NULL;
670 /** When a listening socket gives us a new file descriptor,
671 * we must associate it with a socket without creating a new
672 * connection. This constructor is used for this purpose.
674 TreeSocket(InspIRCd* SI, int newfd, char* ip)
675 : InspSocket(SI, newfd, ip)
677 this->LinkState = WAIT_AUTH_1;
679 this->ctx_out = NULL;
680 this->SendCapabilities();
691 void InitAES(std::string key,std::string SName)
698 Instance->Log(DEBUG,"Initialized AES key %s",key.c_str());
699 // key must be 16, 24, 32 etc bytes (multiple of 8)
700 keylength = key.length();
701 if (!(keylength == 16 || keylength == 24 || keylength == 32))
703 this->Instance->SNO->WriteToSnoMask('l',"\2ERROR\2: Key length for encryptionkey is not 16, 24 or 32 bytes in length!");
704 Instance->Log(DEBUG,"Key length not 16, 24 or 32 characters!");
708 if (this->GetState() != I_ERROR)
710 this->Instance->SNO->WriteToSnoMask('l',"\2AES\2: Initialized %d bit encryption to server %s",keylength*8,SName.c_str());
711 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\
712 \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);
713 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\
714 \0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", keylength, keylength);
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())+"] started.");
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 Instance->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 Instance->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 Instance->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 Instance->Log(DEBUG,"BOUNCE BACK: %s",(to_bounce+params_to_bounce).c_str());
1302 DoOneToOne(this->Instance->Config->ServerName,"FMODE",newparams,sourceserv);
1305 if (to_keep.length())
1309 modelist[0] = params[0].c_str();
1310 modelist[1] = to_keep.c_str();
1312 if (params_to_keep.size() > 0)
1314 for (q = 0; (q < params_to_keep.size()) && (q < 64); q++)
1316 Instance->Log(DEBUG,"KEEP Item %d of %d: %s", q, params_to_keep.size(), params_to_keep[q].c_str());
1317 modelist[n++] = params_to_keep[q].c_str();
1323 Instance->Log(DEBUG,"Send mode");
1324 this->Instance->SendMode(modelist, n, who);
1328 Instance->Log(DEBUG,"Send mode client");
1329 this->Instance->CallCommandHandler("MODE", modelist, n, who);
1332 /* HOT POTATO! PASS IT ON! */
1333 DoOneToAllButSender(source,"FMODE",params,sourceserv);
1337 /* U-lined servers always win regardless of their TS */
1338 if ((TS > ourTS) && (!this->Instance->ULine(source.c_str())))
1340 /* Bounce the mode back to its sender.* We use our lower TS, so the other end
1341 * SHOULD accept it, if its clock is right.
1343 * NOTE: We should check that we arent bouncing anything thats already set at this end.
1344 * If we are, bounce +ourmode to 'reinforce' it. This prevents desyncs.
1345 * e.g. They send +l 50, we have +l 10 set. rather than bounce -l 50, we bounce +l 10.
1347 * Thanks to jilles for pointing out this one-hell-of-an-issue before i even finished
1348 * writing the code. It took me a while to come up with this solution.
1350 * XXX: BE SURE YOU UNDERSTAND THIS CODE FULLY BEFORE YOU MESS WITH IT.
1353 std::deque<std::string> newparams; /* New parameter list we send back */
1354 newparams.push_back(params[0]); /* Target, user or channel */
1355 newparams.push_back(ConvToStr(ourTS)); /* Timestamp value of the target */
1356 newparams.push_back(""); /* This contains the mode string. For now
1357 * it's empty, we fill it below.
1360 /* Intelligent mode bouncing. Don't just invert, reinforce any modes which are already
1361 * set to avoid a desync here.
1363 std::string modebounce = "";
1366 ModeHandler* mh = NULL;
1367 char cur_change = 1;
1368 char old_change = 0;
1369 for (std::string::iterator x = params[2].begin(); x != params[2].end(); x++)
1371 /* Iterate over all mode chars in the sent set */
1374 /* Adding or subtracting modes? */
1382 /* Find the mode handler for this mode */
1383 mh = this->Instance->Modes->FindMode(*x, chan ? MODETYPE_CHANNEL : MODETYPE_USER);
1385 /* Got a mode handler?
1386 * This also prevents us bouncing modes we have no handler for.
1393 /* Does the mode require a parameter right now?
1394 * If it does, fetch it if we can
1396 if ((mh->GetNumParams(adding) > 0) && (t < params.size()))
1399 /* Call the ModeSet method to determine if its set with the
1400 * given parameter here or not.
1402 ret = mh->ModeSet(smode ? NULL : who, dst, chan, p);
1404 /* XXX: Really. Dont ask.
1405 * Determine from if its set combined with what the current
1406 * 'state' is (adding or not) as to wether we should 'invert'
1407 * or 'reinforce' the mode change
1409 (!ret.first ? (adding ? cur_change = '-' : cur_change = '+') : (!adding ? cur_change = '-' : cur_change = '+'));
1411 /* Quickly determine if we have 'flipped' from + to -,
1412 * or - to +, to prevent unneccessary +/- chars in the
1413 * output string that waste bandwidth
1415 if (cur_change != old_change)
1416 modebounce += cur_change;
1417 old_change = cur_change;
1419 /* Add the mode character to the output string */
1420 modebounce += mh->GetModeChar();
1422 /* We got a parameter back from ModeHandler::ModeSet,
1423 * are we supposed to be sending one out right now?
1425 if (ret.second.length())
1427 if (mh->GetNumParams(cur_change == '+') > 0)
1428 /* Yes we're supposed to be sending out
1429 * the parameter. Make sure it goes
1431 newparams.push_back(ret.second);
1439 /* Update the parameters for FMODE with the new 'bounced' string */
1440 newparams[2] = modebounce;
1441 /* Only send it back the way it came, no need to send it anywhere else */
1442 DoOneToOne(this->Instance->Config->ServerName,"FMODE",newparams,sourceserv);
1443 Instance->Log(DEBUG,"FMODE bounced intelligently, our TS less than theirs and the other server is NOT a uline.");
1447 Instance->Log(DEBUG,"Allow modes, TS lower for sender");
1448 /* The server was ulined, but something iffy is up with the TS.
1449 * Sound the alarm bells!
1451 if ((this->Instance->ULine(sourceserv.c_str())) && (TS > ourTS))
1453 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());
1455 /* Allow the mode, route it to either server or user command handling */
1457 this->Instance->SendMode(modelist,n,who);
1459 this->Instance->CallCommandHandler("MODE", modelist, n, who);
1461 /* HOT POTATO! PASS IT ON! */
1462 DoOneToAllButSender(source,"FMODE",params,sourceserv);
1464 /* Are we supposed to free the userrec? */
1471 /** FTOPIC command */
1472 bool ForceTopic(std::string source, std::deque<std::string> ¶ms)
1474 if (params.size() != 4)
1476 time_t ts = atoi(params[1].c_str());
1477 std::string nsource = source;
1479 chanrec* c = this->Instance->FindChan(params[0]);
1482 if ((ts >= c->topicset) || (!*c->topic))
1484 std::string oldtopic = c->topic;
1485 strlcpy(c->topic,params[3].c_str(),MAXTOPIC);
1486 strlcpy(c->setby,params[2].c_str(),NICKMAX-1);
1488 /* if the topic text is the same as the current topic,
1489 * dont bother to send the TOPIC command out, just silently
1490 * update the set time and set nick.
1492 if (oldtopic != params[3])
1494 userrec* user = this->Instance->FindNick(source);
1497 c->WriteChannelWithServ(source.c_str(), "TOPIC %s :%s", c->name, c->topic);
1501 c->WriteChannel(user, "TOPIC %s :%s", c->name, c->topic);
1502 nsource = user->server;
1504 /* all done, send it on its way */
1505 params[3] = ":" + params[3];
1506 DoOneToAllButSender(source,"FTOPIC",params,nsource);
1515 /** FJOIN, similar to TS6 SJOIN, but not quite. */
1516 bool ForceJoin(std::string source, std::deque<std::string> ¶ms)
1518 /* 1.1 FJOIN works as follows:
1520 * Each FJOIN is sent along with a timestamp, and the side with the lowest
1521 * timestamp 'wins'. From this point on we will refer to this side as the
1522 * winner. The side with the higher timestamp loses, from this point on we
1523 * will call this side the loser or losing side. This should be familiar to
1524 * anyone who's dealt with dreamforge or TS6 before.
1526 * When two sides of a split heal and this occurs, the following things
1529 * If the timestamps are exactly equal, both sides merge their privilages
1530 * and users, as in InspIRCd 1.0 and ircd2.8. The channels have not been
1531 * re-created during a split, this is safe to do.
1534 * If the timestamps are NOT equal, the losing side removes all privilage
1535 * modes from all of its users that currently exist in the channel, before
1536 * introducing new users into the channel which are listed in the FJOIN
1537 * command's parameters. This means, all modes +ohv, and privilages added
1538 * by modules, such as +qa. The losing side then LOWERS its timestamp value
1539 * of the channel to match that of the winning side, and the modes of the
1540 * users of the winning side are merged in with the losing side. The loser
1541 * then sends out a set of FMODE commands which 'confirm' that it just
1542 * removed all privilage modes from its existing users, which allows for
1543 * services packages to still work correctly without needing to know the
1544 * timestamping rules which InspIRCd follows. In TS6 servers this is always
1545 * a problem, and services packages must contain code which explicitly
1546 * behaves as TS6 does, removing ops from the losing side of a split where
1547 * neccessary within its internal records, as this state information is
1548 * not explicitly echoed out in that protocol.
1550 * The winning side on the other hand will ignore all user modes from the
1551 * losing side, so only its own modes get applied. Life is simple for those
1552 * who succeed at internets. :-)
1554 * NOTE: Unlike TS6 and dreamforge and other protocols which have SJOIN,
1555 * FJOIN does not contain the simple-modes such as +iklmnsp. Why not,
1556 * you ask? Well, quite simply because we don't need to. They'll be sent
1557 * after the FJOIN by FMODE, and FMODE is timestamped, so in the event
1558 * the losing side sends any modes for the channel which shouldnt win,
1559 * they wont as their timestamp will be too high :-)
1562 if (params.size() < 3)
1565 char first[MAXBUF]; /* The first parameter of the mode command */
1566 char modestring[MAXBUF]; /* The mode sequence (2nd parameter) of the mode command */
1567 char* mode_users[127]; /* The values used by the mode command */
1568 memset(&mode_users,0,sizeof(mode_users)); /* Initialize mode parameters */
1569 mode_users[0] = first; /* Set this up to be our on-stack value */
1570 mode_users[1] = modestring; /* Same here as above */
1571 strcpy(modestring,"+"); /* Initialize the mode sequence to just '+' */
1572 unsigned int modectr = 2; /* Pointer to the third mode parameter (e.g. the one after the +-sequence) */
1574 userrec* who = NULL; /* User we are currently checking */
1575 std::string channel = params[0]; /* Channel name, as a string */
1576 time_t TS = atoi(params[1].c_str()); /* Timestamp given to us for remote side */
1578 /* Try and find the channel */
1579 chanrec* chan = this->Instance->FindChan(channel);
1581 /* Initialize channel name in the mode parameters */
1582 strlcpy(mode_users[0],channel.c_str(),MAXBUF);
1584 /* default TS is a high value, which if we dont have this
1585 * channel will let the other side apply their modes.
1587 time_t ourTS = time(NULL)+600;
1589 /* Does this channel exist? if it does, get its REAL timestamp */
1593 /* In 1.1, if they have the newer channel, we immediately clear
1594 * all status modes from our users. We then accept their modes.
1595 * If WE have the newer channel its the other side's job to do this.
1596 * Note that this causes the losing server to send out confirming
1601 std::deque<std::string> param_list;
1606 /* XXX: Lower the TS here */
1609 param_list.push_back(channel);
1610 /* Zap all the privilage modes on our side */
1611 this->RemoveStatus(Instance->Config->ServerName, param_list);
1614 /* Put the final parameter of the FJOIN into a tokenstream ready to split it */
1615 irc::tokenstream users(params[2]);
1616 std::string item = "*";
1618 /* do this first, so our mode reversals are correctly received by other servers
1619 * if there is a TS collision.
1621 params[2] = ":" + params[2];
1622 DoOneToAllButSender(source,"FJOIN",params,source);
1624 /* Now, process every 'prefixes,nick' pair */
1627 /* Find next user */
1628 item = users.GetToken();
1630 const char* usr = item.c_str();
1632 /* Safety check just to make sure someones not sent us an FJOIN full of spaces
1633 * (is this even possible?) */
1636 const char* permissions = usr;
1638 char* nm = new char[MAXBUF];
1641 /* Iterate through all the prefix values, convert them from prefixes
1642 * to mode letters, and append them to the mode sequence
1644 while ((*permissions) && (*permissions != ',') && (ntimes < MAXBUF))
1646 ModeHandler* mh = Instance->Modes->FindPrefix(*permissions);
1649 /* This is a valid prefix */
1651 *tnm++ = mh->GetModeChar();
1655 /* Not a valid prefix...
1656 * danger bill bobbertson! (that's will robinsons older brother ;-) ...)
1658 this->Instance->WriteOpers("ERROR: We received a user with an unknown prefix '%c'. Closed connection to avoid a desync.",*permissions);
1659 this->WriteLine(std::string("ERROR :Invalid prefix '")+(*permissions)+"' in FJOIN");
1666 /* Null terminate modes */
1668 /* Advance past the comma, to the nick */
1671 /* Check the user actually exists */
1672 who = this->Instance->FindNick(usr);
1675 /* Did they get any modes? How many times? */
1676 strlcat(modestring, nm, MAXBUF);
1677 for (int k = 0; k < ntimes; k++)
1678 mode_users[modectr++] = strdup(usr);
1680 /* Free temporary buffer used for mode sequence */
1683 /* Check that the user's 'direction' is correct
1684 * based on the server sending the FJOIN. We must
1685 * check each nickname in turn, because the origin of
1686 * the FJOIN may be different to the origin of the nicks
1687 * in the command itself.
1689 TreeServer* route_back_again = BestRouteTo(who->server);
1690 if ((!route_back_again) || (route_back_again->GetSocket() != this))
1692 /* Oh dear oh dear. */
1693 Instance->Log(DEBUG,"Fake direction in FJOIN, user '%s'",who->nick);
1696 /* Finally, we can actually place the user into the channel.
1697 * We're sure its right. Final answer, phone a friend.
1699 chanrec::JoinUser(this->Instance, who, channel.c_str(), true, "");
1701 /* Have we already queued up MAXMODES modes with parameters
1702 * (+qaohv) ready to be sent to the server?
1704 if (modectr >= (MAXMODES-1))
1706 /* Only actually give the users any status if we lost
1707 * the FJOIN or drew (equal timestamps).
1708 * It isn't actually possible for ourTS to be > TS here,
1709 * only possible to actually have ourTS == TS, or
1710 * ourTS < TS, because if we lost, we already lowered
1711 * our TS above before we entered this loop. We only
1712 * check >= as a safety measure, in case someone stuffed
1713 * up. If someone DID stuff up, it was most likely me.
1714 * Note: I do not like baseball bats in the face...
1718 Instance->Log(DEBUG,"Our our channel newer than theirs, accepting their modes");
1719 this->Instance->SendMode((const char**)mode_users,modectr,who);
1721 /* Something stuffed up, and for some reason, the timestamp is
1722 * NOT lowered right now and should be. Lower it. Usually this
1723 * code won't be executed, doubtless someone will remove it some
1728 Instance->Log(DEFAULT,"Channel TS for %s changed from %lu to %lu",chan->name,ourTS,TS);
1734 /* Reset all this back to defaults, and
1735 * free any ram we have left allocated.
1737 strcpy(mode_users[1],"+");
1738 for (unsigned int f = 2; f < modectr; f++)
1739 free(mode_users[f]);
1745 /* Remember to free this */
1747 /* If we got here, there's a nick in FJOIN which doesnt exist on this server.
1748 * We don't try to process the nickname here (that WOULD cause a segfault because
1749 * we'd be playing with null pointers) however, we DO pass the nickname on, just
1750 * in case somehow we're desynched, so that other users which might be able to see
1751 * the nickname get their fair chance to process it.
1753 Instance->Log(SPARSE,"Warning! Invalid user in FJOIN to channel %s IGNORED", channel.c_str());
1759 /* there werent enough modes built up to flush it during FJOIN,
1760 * or, there are a number left over. flush them out.
1762 if ((modectr > 2) && (who) && (chan))
1766 /* Our channel is newer than theirs. Evil deeds must be afoot. */
1767 this->Instance->SendMode((const char**)mode_users,modectr,who);
1768 /* Yet again, we can't actually get a true value here, if everything else
1769 * is working as it should.
1773 Instance->Log(DEFAULT,"Channel TS for %s changed from %lu to %lu",chan->name,ourTS,TS);
1779 /* Free anything we have left to free */
1780 for (unsigned int f = 2; f < modectr; f++)
1781 free(mode_users[f]);
1784 /* All done. That wasnt so bad was it, you can wipe
1785 * the sweat from your forehead now. :-)
1791 bool IntroduceClient(std::string source, std::deque<std::string> ¶ms)
1793 if (params.size() < 8)
1795 if (params.size() > 8)
1797 this->WriteLine(std::string(":")+this->Instance->Config->ServerName+" KILL "+params[1]+" :Invalid client introduction ("+params[1]+"?)");
1800 // NICK age nick host dhost ident +modes ip :gecos
1802 time_t age = atoi(params[0].c_str());
1804 /* This used to have a pretty craq'y loop doing the same thing,
1805 * now we just let the STL do the hard work (more efficiently)
1807 std::string::size_type pos_after_plus = params[5].find_first_not_of('+');
1808 if (pos_after_plus != std::string::npos)
1809 params[5] = params[5].substr(pos_after_plus);
1811 const char* tempnick = params[1].c_str();
1812 Instance->Log(DEBUG,"Introduce client %s!%s@%s",tempnick,params[4].c_str(),params[2].c_str());
1814 user_hash::iterator iter = this->Instance->clientlist.find(tempnick);
1816 if (iter != this->Instance->clientlist.end())
1819 Instance->Log(DEBUG,"Nick collision on %s!%s@%s: %lu %lu",tempnick,params[4].c_str(),params[2].c_str(),(unsigned long)age,(unsigned long)iter->second->age);
1820 this->WriteLine(std::string(":")+this->Instance->Config->ServerName+" KILL "+tempnick+" :Nickname collision");
1821 userrec::QuitUser(this->Instance, iter->second, "Nickname collision");
1825 userrec* _new = new userrec(this->Instance);
1826 this->Instance->clientlist[tempnick] = _new;
1827 _new->SetFd(FD_MAGIC_NUMBER);
1828 strlcpy(_new->nick, tempnick,NICKMAX-1);
1829 strlcpy(_new->host, params[2].c_str(),63);
1830 strlcpy(_new->dhost, params[3].c_str(),63);
1831 _new->server = this->Instance->FindServerNamePtr(source.c_str());
1832 strlcpy(_new->ident, params[4].c_str(),IDENTMAX);
1833 strlcpy(_new->fullname, params[7].c_str(),MAXGECOS);
1834 _new->registered = REG_ALL;
1837 for (std::string::iterator v = params[5].begin(); v != params[5].end(); v++)
1838 _new->modes[(*v)-65] = 1;
1840 #ifdef SUPPORT_IP6LINKS
1841 if (params[6].find_first_of(":") != std::string::npos)
1842 _new->SetSockAddr(AF_INET6, params[6].c_str(), 0);
1845 _new->SetSockAddr(AF_INET, params[6].c_str(), 0);
1847 this->Instance->SNO->WriteToSnoMask('C',"Client connecting at %s: %s!%s@%s [%s]",_new->server,_new->nick,_new->ident,_new->host, _new->GetIPString());
1849 params[7] = ":" + params[7];
1850 DoOneToAllButSender(source,"NICK",params,source);
1852 // Increment the Source Servers User Count..
1853 TreeServer* SourceServer = FindServer(source);
1856 Instance->Log(DEBUG,"Found source server of %s",_new->nick);
1857 SourceServer->AddUserCount();
1860 FOREACH_MOD(I_OnPostConnect,OnPostConnect(_new));
1865 /** Send one or more FJOINs for a channel of users.
1866 * If the length of a single line is more than 480-NICKMAX
1867 * in length, it is split over multiple lines.
1869 void SendFJoins(TreeServer* Current, chanrec* c)
1871 Instance->Log(DEBUG,"Sending FJOINs to other server for %s",c->name);
1873 std::string individual_halfops = std::string(":")+this->Instance->Config->ServerName+" FMODE "+c->name+" "+ConvToStr(c->age);
1875 size_t dlen, curlen;
1876 dlen = curlen = snprintf(list,MAXBUF,":%s FJOIN %s %lu",this->Instance->Config->ServerName,c->name,(unsigned long)c->age);
1878 char* ptr = list + dlen;
1880 CUList *ulist = c->GetUsers();
1881 std::vector<userrec*> specific_halfop;
1882 std::vector<userrec*> specific_voice;
1883 std::string modes = "";
1884 std::string params = "";
1886 for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
1888 // The first parameter gets a : before it
1889 size_t ptrlen = snprintf(ptr, MAXBUF, " %s%s,%s", !numusers ? ":" : "", c->GetAllPrefixChars(i->second), i->second->nick);
1896 if (curlen > (480-NICKMAX))
1898 this->WriteLine(list);
1899 dlen = curlen = snprintf(list,MAXBUF,":%s FJOIN %s %lu",this->Instance->Config->ServerName,c->name,(unsigned long)c->age);
1907 this->WriteLine(list);
1909 for (BanList::iterator b = c->bans.begin(); b != c->bans.end(); b++)
1912 params.append(b->data).append(" ");
1914 this->WriteLine(std::string(":")+this->Instance->Config->ServerName+" FMODE "+c->name+" "+ConvToStr(c->age)+" +"+c->ChanModes(true)+modes+" "+params);
1917 /** Send G, Q, Z and E lines */
1918 void SendXLines(TreeServer* Current)
1921 std::string n = this->Instance->Config->ServerName;
1922 const char* sn = n.c_str();
1924 /* Yes, these arent too nice looking, but they get the job done */
1925 for (std::vector<ZLine*>::iterator i = Instance->XLines->zlines.begin(); i != Instance->XLines->zlines.end(); i++, iterations++)
1927 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);
1928 this->WriteLine(data);
1930 for (std::vector<QLine*>::iterator i = Instance->XLines->qlines.begin(); i != Instance->XLines->qlines.end(); i++, iterations++)
1932 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);
1933 this->WriteLine(data);
1935 for (std::vector<GLine*>::iterator i = Instance->XLines->glines.begin(); i != Instance->XLines->glines.end(); i++, iterations++)
1937 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);
1938 this->WriteLine(data);
1940 for (std::vector<ELine*>::iterator i = Instance->XLines->elines.begin(); i != Instance->XLines->elines.end(); i++, iterations++)
1942 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);
1943 this->WriteLine(data);
1945 for (std::vector<ZLine*>::iterator i = Instance->XLines->pzlines.begin(); i != Instance->XLines->pzlines.end(); i++, iterations++)
1947 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);
1948 this->WriteLine(data);
1950 for (std::vector<QLine*>::iterator i = Instance->XLines->pqlines.begin(); i != Instance->XLines->pqlines.end(); i++, iterations++)
1952 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);
1953 this->WriteLine(data);
1955 for (std::vector<GLine*>::iterator i = Instance->XLines->pglines.begin(); i != Instance->XLines->pglines.end(); i++, iterations++)
1957 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);
1958 this->WriteLine(data);
1960 for (std::vector<ELine*>::iterator i = Instance->XLines->pelines.begin(); i != Instance->XLines->pelines.end(); i++, iterations++)
1962 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);
1963 this->WriteLine(data);
1967 /** Send channel modes and topics */
1968 void SendChannelModes(TreeServer* Current)
1971 std::deque<std::string> list;
1973 std::string n = this->Instance->Config->ServerName;
1974 const char* sn = n.c_str();
1975 for (chan_hash::iterator c = this->Instance->chanlist.begin(); c != this->Instance->chanlist.end(); c++, iterations++)
1977 SendFJoins(Current, c->second);
1978 if (*c->second->topic)
1980 snprintf(data,MAXBUF,":%s FTOPIC %s %lu %s :%s",sn,c->second->name,(unsigned long)c->second->topicset,c->second->setby,c->second->topic);
1981 this->WriteLine(data);
1983 FOREACH_MOD_I(this->Instance,I_OnSyncChannel,OnSyncChannel(c->second,(Module*)TreeProtocolModule,(void*)this));
1985 c->second->GetExtList(list);
1986 for (unsigned int j = 0; j < list.size(); j++)
1988 FOREACH_MOD_I(this->Instance,I_OnSyncChannelMetaData,OnSyncChannelMetaData(c->second,(Module*)TreeProtocolModule,(void*)this,list[j]));
1993 /** send all users and their oper state/modes */
1994 void SendUsers(TreeServer* Current)
1997 std::deque<std::string> list;
1999 for (user_hash::iterator u = this->Instance->clientlist.begin(); u != this->Instance->clientlist.end(); u++, iterations++)
2001 if (u->second->registered == REG_ALL)
2003 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);
2004 this->WriteLine(data);
2005 if (*u->second->oper)
2007 this->WriteLine(":"+std::string(u->second->nick)+" OPERTYPE "+std::string(u->second->oper));
2009 if (*u->second->awaymsg)
2011 this->WriteLine(":"+std::string(u->second->nick)+" AWAY :"+std::string(u->second->awaymsg));
2013 FOREACH_MOD_I(this->Instance,I_OnSyncUser,OnSyncUser(u->second,(Module*)TreeProtocolModule,(void*)this));
2015 u->second->GetExtList(list);
2016 for (unsigned int j = 0; j < list.size(); j++)
2018 FOREACH_MOD_I(this->Instance,I_OnSyncUserMetaData,OnSyncUserMetaData(u->second,(Module*)TreeProtocolModule,(void*)this,list[j]));
2024 /** This function is called when we want to send a netburst to a local
2025 * server. There is a set order we must do this, because for example
2026 * users require their servers to exist, and channels require their
2027 * users to exist. You get the idea.
2029 void DoBurst(TreeServer* s)
2031 std::string burst = "BURST "+ConvToStr(time(NULL));
2032 std::string endburst = "ENDBURST";
2033 // Because by the end of the netburst, it could be gone!
2034 std::string name = s->GetName();
2035 this->Instance->SNO->WriteToSnoMask('l',"Bursting to \2"+name+"\2.");
2036 this->WriteLine(burst);
2037 /* send our version string */
2038 this->WriteLine(std::string(":")+this->Instance->Config->ServerName+" VERSION :"+this->Instance->GetVersionString());
2039 /* Send server tree */
2040 this->SendServers(TreeRoot,s,1);
2041 /* Send users and their oper status */
2043 /* Send everything else (channel modes, xlines etc) */
2044 this->SendChannelModes(s);
2045 this->SendXLines(s);
2046 FOREACH_MOD_I(this->Instance,I_OnSyncOtherMetaData,OnSyncOtherMetaData((Module*)TreeProtocolModule,(void*)this));
2047 this->WriteLine(endburst);
2048 this->Instance->SNO->WriteToSnoMask('l',"Finished bursting to \2"+name+"\2.");
2051 /** This function is called when we receive data from a remote
2052 * server. We buffer the data in a std::string (it doesnt stay
2053 * there for long), reading using InspSocket::Read() which can
2054 * read up to 16 kilobytes in one operation.
2056 * IF THIS FUNCTION RETURNS FALSE, THE CORE CLOSES AND DELETES
2057 * THE SOCKET OBJECT FOR US.
2059 virtual bool OnDataReady()
2061 char* data = this->Read();
2062 /* Check that the data read is a valid pointer and it has some content */
2065 this->in_buffer.append(data);
2066 /* While there is at least one new line in the buffer,
2067 * do something useful (we hope!) with it.
2069 while (in_buffer.find("\n") != std::string::npos)
2071 std::string ret = in_buffer.substr(0,in_buffer.find("\n")-1);
2072 in_buffer = in_buffer.substr(in_buffer.find("\n")+1,in_buffer.length()-in_buffer.find("\n"));
2073 if (ret.find("\r") != std::string::npos)
2074 ret = in_buffer.substr(0,in_buffer.find("\r")-1);
2075 /* Process this one, abort if it
2076 * didnt return true.
2082 memset(result,0,1024);
2084 Instance->Log(DEBUG,"Original string '%s'",ret.c_str());
2085 /* ERROR + CAPAB is still allowed unencryped */
2086 if ((ret.substr(0,7) != "ERROR :") && (ret.substr(0,6) != "CAPAB "))
2088 int nbytes = from64tobits(out, ret.c_str(), 1024);
2089 if ((nbytes > 0) && (nbytes < 1024))
2091 Instance->Log(DEBUG,"m_spanningtree: decrypt %d bytes",nbytes);
2092 ctx_in->Decrypt(out, result, nbytes, 0);
2093 for (int t = 0; t < nbytes; t++)
2094 if (result[t] == '\7') result[t] = 0;
2099 if (!this->ProcessLine(ret))
2101 Instance->Log(DEBUG,"ProcessLine says no!");
2107 /* EAGAIN returns an empty but non-NULL string, so this
2108 * evaluates to TRUE for EAGAIN but to FALSE for EOF.
2110 return (data && !*data);
2113 int WriteLine(std::string line)
2115 Instance->Log(DEBUG,"OUT: %s",line.c_str());
2119 char result64[10240];
2120 if (this->keylength)
2122 // pad it to the key length
2123 int n = this->keylength - (line.length() % this->keylength);
2126 Instance->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);
2127 line.append(n,'\7');
2130 unsigned int ll = line.length();
2131 ctx_out->Encrypt(line.c_str(), result, ll, 0);
2132 to64frombits((unsigned char*)result64,(unsigned char*)result,ll);
2134 //int from64tobits(char *out, const char *in, int maxlen);
2136 return this->Write(line + "\r\n");
2139 /* Handle ERROR command */
2140 bool Error(std::deque<std::string> ¶ms)
2142 if (params.size() < 1)
2144 this->Instance->SNO->WriteToSnoMask('l',"ERROR from %s: %s",(InboundServerName != "" ? InboundServerName.c_str() : myhost.c_str()),params[0].c_str());
2145 /* we will return false to cause the socket to close. */
2149 /** remote MOTD. leet, huh? */
2150 bool Motd(std::string prefix, std::deque<std::string> ¶ms)
2152 if (params.size() > 0)
2154 if (this->Instance->MatchText(this->Instance->Config->ServerName, params[0]))
2156 /* It's for our server */
2157 string_list results;
2158 userrec* source = this->Instance->FindNick(prefix);
2162 std::deque<std::string> par;
2163 par.push_back(prefix);
2166 if (!Instance->Config->MOTD.size())
2168 par[1] = std::string("::")+Instance->Config->ServerName+" 422 "+source->nick+" :Message of the day file is missing.";
2169 DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
2173 par[1] = std::string("::")+Instance->Config->ServerName+" 375 "+source->nick+" :"+Instance->Config->ServerName+" message of the day";
2174 DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
2176 for (unsigned int i = 0; i < Instance->Config->MOTD.size(); i++)
2178 par[1] = std::string("::")+Instance->Config->ServerName+" 372 "+source->nick+" :- "+Instance->Config->MOTD[i];
2179 DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
2182 par[1] = std::string("::")+Instance->Config->ServerName+" 376 "+source->nick+" End of message of the day.";
2183 DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
2189 userrec* source = this->Instance->FindNick(prefix);
2191 DoOneToOne(prefix, "MOTD", params, params[0]);
2197 /** remote ADMIN. leet, huh? */
2198 bool Admin(std::string prefix, std::deque<std::string> ¶ms)
2200 if (params.size() > 0)
2202 if (this->Instance->MatchText(this->Instance->Config->ServerName, params[0]))
2204 /* It's for our server */
2205 string_list results;
2206 userrec* source = this->Instance->FindNick(prefix);
2210 std::deque<std::string> par;
2211 par.push_back(prefix);
2214 par[1] = std::string("::")+Instance->Config->ServerName+" 256 "+source->nick+" :Administrative info for "+Instance->Config->ServerName;
2215 DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
2217 par[1] = std::string("::")+Instance->Config->ServerName+" 257 "+source->nick+" :Name - "+Instance->Config->AdminName;
2218 DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
2220 par[1] = std::string("::")+Instance->Config->ServerName+" 258 "+source->nick+" :Nickname - "+Instance->Config->AdminNick;
2221 DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
2223 par[1] = std::string("::")+Instance->Config->ServerName+" 258 "+source->nick+" :E-Mail - "+Instance->Config->AdminEmail;
2224 DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
2230 userrec* source = this->Instance->FindNick(prefix);
2232 DoOneToOne(prefix, "ADMIN", params, params[0]);
2238 bool Stats(std::string prefix, std::deque<std::string> ¶ms)
2240 /* Get the reply to a STATS query if it matches this servername,
2241 * and send it back as a load of PUSH queries
2243 if (params.size() > 1)
2245 if (this->Instance->MatchText(this->Instance->Config->ServerName, params[1]))
2247 /* It's for our server */
2248 string_list results;
2249 userrec* source = this->Instance->FindNick(prefix);
2252 std::deque<std::string> par;
2253 par.push_back(prefix);
2255 DoStats(this->Instance, *(params[0].c_str()), source, results);
2256 for (size_t i = 0; i < results.size(); i++)
2258 par[1] = "::" + results[i];
2259 DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
2266 userrec* source = this->Instance->FindNick(prefix);
2268 DoOneToOne(prefix, "STATS", params, params[1]);
2275 /** Because the core won't let users or even SERVERS set +o,
2276 * we use the OPERTYPE command to do this.
2278 bool OperType(std::string prefix, std::deque<std::string> ¶ms)
2280 if (params.size() != 1)
2282 Instance->Log(DEBUG,"Received invalid oper type from %s",prefix.c_str());
2285 std::string opertype = params[0];
2286 userrec* u = this->Instance->FindNick(prefix);
2289 u->modes[UM_OPERATOR] = 1;
2290 strlcpy(u->oper,opertype.c_str(),NICKMAX-1);
2291 DoOneToAllButSender(u->nick,"OPERTYPE",params,u->server);
2296 /** Because Andy insists that services-compatible servers must
2297 * implement SVSNICK and SVSJOIN, that's exactly what we do :p
2299 bool ForceNick(std::string prefix, std::deque<std::string> ¶ms)
2301 if (params.size() < 3)
2304 userrec* u = this->Instance->FindNick(params[0]);
2308 DoOneToAllButSender(prefix,"SVSNICK",params,prefix);
2311 std::deque<std::string> par;
2312 par.push_back(params[1]);
2313 /* This is not required as one is sent in OnUserPostNick below
2315 //DoOneToMany(u->nick,"NICK",par);
2316 if (!u->ForceNickChange(params[1].c_str()))
2318 userrec::QuitUser(this->Instance, u, "Nickname collision");
2321 u->age = atoi(params[2].c_str());
2327 bool ServiceJoin(std::string prefix, std::deque<std::string> ¶ms)
2329 if (params.size() < 2)
2332 userrec* u = this->Instance->FindNick(params[0]);
2336 chanrec::JoinUser(this->Instance, u, params[1].c_str(), false);
2337 DoOneToAllButSender(prefix,"SVSJOIN",params,prefix);
2342 bool RemoteRehash(std::string prefix, std::deque<std::string> ¶ms)
2344 if (params.size() < 1)
2347 std::string servermask = params[0];
2349 if (this->Instance->MatchText(this->Instance->Config->ServerName,servermask))
2351 this->Instance->SNO->WriteToSnoMask('l',"Remote rehash initiated from server \002"+prefix+"\002.");
2352 this->Instance->RehashServer();
2353 ReadConfiguration(false);
2354 InitializeDisabledCommands(ServerInstance->Config->DisabledCommands, ServerInstance);
2356 DoOneToAllButSender(prefix,"REHASH",params,prefix);
2360 bool RemoteKill(std::string prefix, std::deque<std::string> ¶ms)
2362 if (params.size() != 2)
2365 std::string nick = params[0];
2366 userrec* u = this->Instance->FindNick(prefix);
2367 userrec* who = this->Instance->FindNick(nick);
2371 /* Prepend kill source, if we don't have one */
2372 std::string sourceserv = prefix;
2375 sourceserv = u->server;
2377 if (*(params[1].c_str()) != '[')
2379 params[1] = "[" + sourceserv + "] Killed (" + params[1] +")";
2381 std::string reason = params[1];
2382 params[1] = ":" + params[1];
2383 DoOneToAllButSender(prefix,"KILL",params,sourceserv);
2384 who->Write(":%s KILL %s :%s (%s)", sourceserv.c_str(), who->nick, sourceserv.c_str(), reason.c_str());
2385 userrec::QuitUser(this->Instance,who,reason);
2390 bool LocalPong(std::string prefix, std::deque<std::string> ¶ms)
2392 if (params.size() < 1)
2395 if (params.size() == 1)
2397 TreeServer* ServerSource = FindServer(prefix);
2400 ServerSource->SetPingFlag();
2405 std::string forwardto = params[1];
2406 if (forwardto == this->Instance->Config->ServerName)
2409 * this is a PONG for us
2410 * if the prefix is a user, check theyre local, and if they are,
2411 * dump the PONG reply back to their fd. If its a server, do nowt.
2412 * Services might want to send these s->s, but we dont need to yet.
2414 userrec* u = this->Instance->FindNick(prefix);
2418 u->WriteServ("PONG %s %s",params[0].c_str(),params[1].c_str());
2423 // not for us, pass it on :)
2424 DoOneToOne(prefix,"PONG",params,forwardto);
2431 bool MetaData(std::string prefix, std::deque<std::string> ¶ms)
2433 if (params.size() < 3)
2436 TreeServer* ServerSource = FindServer(prefix);
2440 if (params[0] == "*")
2442 FOREACH_MOD_I(this->Instance,I_OnDecodeMetaData,OnDecodeMetaData(TYPE_OTHER,NULL,params[1],params[2]));
2444 else if (*(params[0].c_str()) == '#')
2446 chanrec* c = this->Instance->FindChan(params[0]);
2449 FOREACH_MOD_I(this->Instance,I_OnDecodeMetaData,OnDecodeMetaData(TYPE_CHANNEL,c,params[1],params[2]));
2452 else if (*(params[0].c_str()) != '#')
2454 userrec* u = this->Instance->FindNick(params[0]);
2457 FOREACH_MOD_I(this->Instance,I_OnDecodeMetaData,OnDecodeMetaData(TYPE_USER,u,params[1],params[2]));
2462 params[2] = ":" + params[2];
2463 DoOneToAllButSender(prefix,"METADATA",params,prefix);
2467 bool ServerVersion(std::string prefix, std::deque<std::string> ¶ms)
2469 if (params.size() < 1)
2472 TreeServer* ServerSource = FindServer(prefix);
2476 ServerSource->SetVersion(params[0]);
2478 params[0] = ":" + params[0];
2479 DoOneToAllButSender(prefix,"VERSION",params,prefix);
2483 bool ChangeHost(std::string prefix, std::deque<std::string> ¶ms)
2485 if (params.size() < 1)
2488 userrec* u = this->Instance->FindNick(prefix);
2492 u->ChangeDisplayedHost(params[0].c_str());
2493 DoOneToAllButSender(prefix,"FHOST",params,u->server);
2498 bool AddLine(std::string prefix, std::deque<std::string> ¶ms)
2500 if (params.size() < 6)
2503 bool propogate = false;
2505 switch (*(params[0].c_str()))
2508 propogate = Instance->XLines->add_zline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
2509 Instance->XLines->zline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
2512 propogate = Instance->XLines->add_qline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
2513 Instance->XLines->qline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
2516 propogate = Instance->XLines->add_eline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
2517 Instance->XLines->eline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
2520 propogate = Instance->XLines->add_gline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
2521 Instance->XLines->gline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
2524 propogate = Instance->XLines->add_kline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
2527 /* Just in case... */
2528 this->Instance->SNO->WriteToSnoMask('x',"\2WARNING\2: Invalid xline type '"+params[0]+"' sent by server "+prefix+", ignored!");
2533 /* Send it on its way */
2536 if (atoi(params[4].c_str()))
2538 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());
2542 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());
2544 params[5] = ":" + params[5];
2545 DoOneToAllButSender(prefix,"ADDLINE",params,prefix);
2547 if (!this->bursting)
2549 Instance->Log(DEBUG,"Applying lines...");
2550 Instance->XLines->apply_lines(APPLY_ZLINES|APPLY_GLINES|APPLY_QLINES);
2555 bool ChangeName(std::string prefix, std::deque<std::string> ¶ms)
2557 if (params.size() < 1)
2560 userrec* u = this->Instance->FindNick(prefix);
2564 u->ChangeName(params[0].c_str());
2565 params[0] = ":" + params[0];
2566 DoOneToAllButSender(prefix,"FNAME",params,u->server);
2571 bool Whois(std::string prefix, std::deque<std::string> ¶ms)
2573 if (params.size() < 1)
2576 Instance->Log(DEBUG,"In IDLE command");
2577 userrec* u = this->Instance->FindNick(prefix);
2581 Instance->Log(DEBUG,"USER EXISTS: %s",u->nick);
2582 // an incoming request
2583 if (params.size() == 1)
2585 userrec* x = this->Instance->FindNick(params[0]);
2586 if ((x) && (IS_LOCAL(x)))
2588 userrec* x = this->Instance->FindNick(params[0]);
2589 char signon[MAXBUF];
2592 snprintf(signon,MAXBUF,"%lu",(unsigned long)x->signon);
2593 snprintf(idle,MAXBUF,"%lu",(unsigned long)abs((x->idle_lastmsg)-time(NULL)));
2594 std::deque<std::string> par;
2595 par.push_back(prefix);
2596 par.push_back(signon);
2597 par.push_back(idle);
2598 // ours, we're done, pass it BACK
2599 DoOneToOne(params[0],"IDLE",par,u->server);
2603 // not ours pass it on
2604 DoOneToOne(prefix,"IDLE",params,x->server);
2607 else if (params.size() == 3)
2609 std::string who_did_the_whois = params[0];
2610 userrec* who_to_send_to = this->Instance->FindNick(who_did_the_whois);
2611 if ((who_to_send_to) && (IS_LOCAL(who_to_send_to)))
2613 // an incoming reply to a whois we sent out
2614 std::string nick_whoised = prefix;
2615 unsigned long signon = atoi(params[1].c_str());
2616 unsigned long idle = atoi(params[2].c_str());
2617 if ((who_to_send_to) && (IS_LOCAL(who_to_send_to)))
2618 do_whois(this->Instance,who_to_send_to,u,signon,idle,nick_whoised.c_str());
2622 // not ours, pass it on
2623 DoOneToOne(prefix,"IDLE",params,who_to_send_to->server);
2630 bool Push(std::string prefix, std::deque<std::string> ¶ms)
2632 if (params.size() < 2)
2635 userrec* u = this->Instance->FindNick(params[0]);
2642 u->Write(params[1]);
2646 // continue the raw onwards
2647 params[1] = ":" + params[1];
2648 DoOneToOne(prefix,"PUSH",params,u->server);
2653 bool Time(std::string prefix, std::deque<std::string> ¶ms)
2655 // :source.server TIME remote.server sendernick
2656 // :remote.server TIME source.server sendernick TS
2657 if (params.size() == 2)
2659 // someone querying our time?
2660 if (this->Instance->Config->ServerName == params[0])
2662 userrec* u = this->Instance->FindNick(params[1]);
2666 snprintf(curtime,256,"%lu",(unsigned long)time(NULL));
2667 params.push_back(curtime);
2669 DoOneToOne(this->Instance->Config->ServerName,"TIME",params,params[0]);
2674 // not us, pass it on
2675 userrec* u = this->Instance->FindNick(params[1]);
2677 DoOneToOne(prefix,"TIME",params,params[0]);
2680 else if (params.size() == 3)
2682 // a response to a previous TIME
2683 userrec* u = this->Instance->FindNick(params[1]);
2684 if ((u) && (IS_LOCAL(u)))
2686 time_t rawtime = atol(params[2].c_str());
2687 struct tm * timeinfo;
2688 timeinfo = localtime(&rawtime);
2690 snprintf(tms,26,"%s",asctime(timeinfo));
2692 u->WriteServ("391 %s %s :%s",u->nick,prefix.c_str(),tms);
2697 DoOneToOne(prefix,"TIME",params,u->server);
2703 bool LocalPing(std::string prefix, std::deque<std::string> ¶ms)
2705 if (params.size() < 1)
2708 if (params.size() == 1)
2710 std::string stufftobounce = params[0];
2711 this->WriteLine(std::string(":")+this->Instance->Config->ServerName+" PONG "+stufftobounce);
2716 std::string forwardto = params[1];
2717 if (forwardto == this->Instance->Config->ServerName)
2719 // this is a ping for us, send back PONG to the requesting server
2720 params[1] = params[0];
2721 params[0] = forwardto;
2722 DoOneToOne(forwardto,"PONG",params,params[1]);
2726 // not for us, pass it on :)
2727 DoOneToOne(prefix,"PING",params,forwardto);
2733 bool RemoveStatus(std::string prefix, std::deque<std::string> ¶ms)
2735 if (params.size() < 1)
2738 chanrec* c = Instance->FindChan(params[0]);
2742 irc::modestacker modestack(false);
2743 CUList *ulist = c->GetUsers();
2745 std::deque<std::string> stackresult;
2748 for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
2750 std::string modesequence = Instance->Modes->ModeString(i->second, c);
2751 if (modesequence.length())
2753 ServerInstance->Log(DEBUG,"Mode sequence = '%s'",modesequence.c_str());
2754 irc::spacesepstream sep(modesequence);
2755 std::string modeletters = sep.GetToken();
2756 ServerInstance->Log(DEBUG,"Mode letters = '%s'",modeletters.c_str());
2758 while (!modeletters.empty())
2760 char mletter = *(modeletters.begin());
2761 modestack.Push(mletter,sep.GetToken());
2762 ServerInstance->Log(DEBUG,"Push letter = '%c'",mletter);
2763 modeletters.erase(modeletters.begin());
2764 ServerInstance->Log(DEBUG,"Mode letters = '%s'",modeletters.c_str());
2769 while (modestack.GetStackedLine(stackresult))
2771 ServerInstance->Log(DEBUG,"Stacked line size %d",stackresult.size());
2772 stackresult.push_front(ConvToStr(c->age));
2773 stackresult.push_front(c->name);
2774 DoOneToMany(Instance->Config->ServerName, "FMODE", stackresult);
2775 stackresult.erase(stackresult.begin() + 1);
2776 ServerInstance->Log(DEBUG,"Stacked items:");
2777 for (size_t z = 0; z < stackresult.size(); z++)
2779 y[z] = stackresult[z].c_str();
2780 ServerInstance->Log(DEBUG,"\tstackresult[%d]='%s'",z,stackresult[z].c_str());
2782 userrec* n = new userrec(Instance);
2783 n->SetFd(FD_MAGIC_NUMBER);
2784 Instance->SendMode(y, stackresult.size(), n);
2791 bool RemoteServer(std::string prefix, std::deque<std::string> ¶ms)
2793 if (params.size() < 4)
2796 std::string servername = params[0];
2797 std::string password = params[1];
2798 // hopcount is not used for a remote server, we calculate this ourselves
2799 std::string description = params[3];
2800 TreeServer* ParentOfThis = FindServer(prefix);
2804 this->WriteLine("ERROR :Protocol error - Introduced remote server from unknown server "+prefix);
2807 TreeServer* CheckDupe = FindServer(servername);
2810 this->WriteLine("ERROR :Server "+servername+" already exists!");
2811 this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+servername+"\2 denied, already exists");
2814 TreeServer* Node = new TreeServer(this->Instance,servername,description,ParentOfThis,NULL);
2815 ParentOfThis->AddChild(Node);
2816 params[3] = ":" + params[3];
2817 DoOneToAllButSender(prefix,"SERVER",params,prefix);
2818 this->Instance->SNO->WriteToSnoMask('l',"Server \002"+prefix+"\002 introduced server \002"+servername+"\002 ("+description+")");
2822 bool Outbound_Reply_Server(std::deque<std::string> ¶ms)
2824 if (params.size() < 4)
2827 irc::string servername = params[0].c_str();
2828 std::string sname = params[0];
2829 std::string password = params[1];
2830 int hops = atoi(params[2].c_str());
2834 this->WriteLine("ERROR :Server too far away for authentication");
2835 this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, server is too far away for authentication");
2838 std::string description = params[3];
2839 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
2841 if ((x->Name == servername) && (x->RecvPass == password))
2843 TreeServer* CheckDupe = FindServer(sname);
2846 this->WriteLine("ERROR :Server "+sname+" already exists on server "+CheckDupe->GetParent()->GetName()+"!");
2847 this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, already exists on server "+CheckDupe->GetParent()->GetName());
2850 // Begin the sync here. this kickstarts the
2851 // other side, waiting in WAIT_AUTH_2 state,
2852 // into starting their burst, as it shows
2853 // that we're happy.
2854 this->LinkState = CONNECTED;
2855 // we should add the details of this server now
2856 // to the servers tree, as a child of the root
2858 TreeServer* Node = new TreeServer(this->Instance,sname,description,TreeRoot,this);
2859 TreeRoot->AddChild(Node);
2860 params[3] = ":" + params[3];
2861 DoOneToAllButSender(TreeRoot->GetName(),"SERVER",params,sname);
2862 this->bursting = true;
2863 this->DoBurst(Node);
2867 this->WriteLine("ERROR :Invalid credentials");
2868 this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, invalid link credentials");
2872 bool Inbound_Server(std::deque<std::string> ¶ms)
2874 if (params.size() < 4)
2877 irc::string servername = params[0].c_str();
2878 std::string sname = params[0];
2879 std::string password = params[1];
2880 int hops = atoi(params[2].c_str());
2884 this->WriteLine("ERROR :Server too far away for authentication");
2885 this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, server is too far away for authentication");
2888 std::string description = params[3];
2889 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
2891 if ((x->Name == servername) && (x->RecvPass == password))
2893 TreeServer* CheckDupe = FindServer(sname);
2896 this->WriteLine("ERROR :Server "+sname+" already exists on server "+CheckDupe->GetParent()->GetName()+"!");
2897 this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, already exists on server "+CheckDupe->GetParent()->GetName());
2900 /* If the config says this link is encrypted, but the remote side
2901 * hasnt bothered to send the AES command before SERVER, then we
2902 * boot them off as we MUST have this connection encrypted.
2904 if ((x->EncryptionKey != "") && (!this->ctx_in))
2906 this->WriteLine("ERROR :This link requires AES encryption to be enabled. Plaintext connection refused.");
2907 this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, remote server did not enable AES.");
2910 this->Instance->SNO->WriteToSnoMask('l',"Verified incoming server connection from \002"+sname+"\002["+(x->HiddenFromStats ? "<hidden>" : this->GetIP())+"] ("+description+")");
2911 this->InboundServerName = sname;
2912 this->InboundDescription = description;
2913 // this is good. Send our details: Our server name and description and hopcount of 0,
2914 // along with the sendpass from this block.
2915 this->WriteLine(std::string("SERVER ")+this->Instance->Config->ServerName+" "+x->SendPass+" 0 :"+this->Instance->Config->ServerDesc);
2916 // move to the next state, we are now waiting for THEM.
2917 this->LinkState = WAIT_AUTH_2;
2921 this->WriteLine("ERROR :Invalid credentials");
2922 this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, invalid link credentials");
2926 void Split(std::string line, std::deque<std::string> &n)
2929 irc::tokenstream tokens(line);
2931 while ((param = tokens.GetToken()) != "")
2936 bool ProcessLine(std::string line)
2938 std::deque<std::string> params;
2939 irc::string command;
2945 line = line.substr(0, line.find_first_of("\r\n"));
2947 Instance->Log(DEBUG,"IN: %s", line.c_str());
2949 this->Split(line.c_str(),params);
2951 if ((params[0][0] == ':') && (params.size() > 1))
2953 prefix = params[0].substr(1);
2957 command = params[0].c_str();
2960 if ((!this->ctx_in) && (command == "AES"))
2962 std::string sserv = params[0];
2963 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
2965 if ((x->EncryptionKey != "") && (x->Name == sserv))
2967 this->InitAES(x->EncryptionKey,sserv);
2973 else if ((this->ctx_in) && (command == "AES"))
2975 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());
2978 switch (this->LinkState)
2983 // Waiting for SERVER command from remote server. Server initiating
2984 // the connection sends the first SERVER command, listening server
2985 // replies with theirs if its happy, then if the initiator is happy,
2986 // it starts to send its net sync, which starts the merge, otherwise
2987 // it sends an ERROR.
2988 if (command == "PASS")
2990 /* Silently ignored */
2992 else if (command == "SERVER")
2994 return this->Inbound_Server(params);
2996 else if (command == "ERROR")
2998 return this->Error(params);
3000 else if (command == "USER")
3002 this->WriteLine("ERROR :Client connections to this port are prohibited.");
3005 else if (command == "CAPAB")
3007 return this->Capab(params);
3009 else if ((command == "U") || (command == "S"))
3011 this->WriteLine("ERROR :Cannot use the old-style mesh linking protocol with m_spanningtree.so!");
3016 this->WriteLine("ERROR :Invalid command in negotiation phase.");
3021 // Waiting for start of other side's netmerge to say they liked our
3023 if (command == "SERVER")
3025 // cant do this, they sent it to us in the WAIT_AUTH_1 state!
3029 else if ((command == "U") || (command == "S"))
3031 this->WriteLine("ERROR :Cannot use the old-style mesh linking protocol with m_spanningtree.so!");
3034 else if (command == "BURST")
3038 /* If a time stamp is provided, try and check syncronization */
3039 time_t THEM = atoi(params[0].c_str());
3040 long delta = THEM-time(NULL);
3041 if ((delta < -600) || (delta > 600))
3043 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));
3044 this->WriteLine("ERROR :Your clocks are out by "+ConvToStr(abs(delta))+" seconds (this is more than ten minutes). Link aborted, PLEASE SYNC YOUR CLOCKS!");
3047 else if ((delta < -60) || (delta > 60))
3049 this->Instance->SNO->WriteToSnoMask('l',"\2WARNING\2: Your clocks are out by %d seconds, please consider synching your clocks.",abs(delta));
3052 this->LinkState = CONNECTED;
3053 Node = new TreeServer(this->Instance,InboundServerName,InboundDescription,TreeRoot,this);
3054 TreeRoot->AddChild(Node);
3056 params.push_back(InboundServerName);
3057 params.push_back("*");
3058 params.push_back("1");
3059 params.push_back(":"+InboundDescription);
3060 DoOneToAllButSender(TreeRoot->GetName(),"SERVER",params,InboundServerName);
3061 this->bursting = true;
3062 this->DoBurst(Node);
3064 else if (command == "ERROR")
3066 return this->Error(params);
3068 else if (command == "CAPAB")
3070 return this->Capab(params);
3075 this->WriteLine("ERROR :Internal error -- listening socket accepted its own descriptor!!!");
3079 if (command == "SERVER")
3081 // another server we connected to, which was in WAIT_AUTH_1 state,
3082 // has just sent us their credentials. If we get this far, theyre
3083 // happy with OUR credentials, and they are now in WAIT_AUTH_2 state.
3084 // if we're happy with this, we should send our netburst which
3085 // kickstarts the merge.
3086 return this->Outbound_Reply_Server(params);
3088 else if (command == "ERROR")
3090 return this->Error(params);
3094 // This is the 'authenticated' state, when all passwords
3095 // have been exchanged and anything past this point is taken
3100 std::string direction = prefix;
3101 userrec* t = this->Instance->FindNick(prefix);
3104 direction = t->server;
3106 TreeServer* route_back_again = BestRouteTo(direction);
3107 if ((!route_back_again) || (route_back_again->GetSocket() != this))
3109 if (route_back_again)
3110 Instance->Log(DEBUG,"Protocol violation: Fake direction in command '%s' from connection '%s'",line.c_str(),this->GetName().c_str());
3115 * When there is activity on the socket, reset the ping counter so
3116 * that we're not wasting bandwidth pinging an active server.
3118 route_back_again->SetNextPingTime(time(NULL) + 60);
3119 route_back_again->SetPingFlag();
3122 if (command == "SVSMODE")
3124 /* Services expects us to implement
3125 * SVSMODE. In inspircd its the same as
3130 std::string target = "";
3131 /* Yes, know, this is a mess. Its reasonably fast though as we're
3132 * working with std::string here.
3134 if ((command == "NICK") && (params.size() > 1))
3136 return this->IntroduceClient(prefix,params);
3138 else if (command == "FJOIN")
3140 return this->ForceJoin(prefix,params);
3142 else if (command == "STATS")
3144 return this->Stats(prefix, params);
3146 else if (command == "MOTD")
3148 return this->Motd(prefix, params);
3150 else if (command == "ADMIN")
3152 return this->Admin(prefix, params);
3154 else if (command == "SERVER")
3156 return this->RemoteServer(prefix,params);
3158 else if (command == "ERROR")
3160 return this->Error(params);
3162 else if (command == "OPERTYPE")
3164 return this->OperType(prefix,params);
3166 else if (command == "FMODE")
3168 return this->ForceMode(prefix,params);
3170 else if (command == "KILL")
3172 return this->RemoteKill(prefix,params);
3174 else if (command == "FTOPIC")
3176 return this->ForceTopic(prefix,params);
3178 else if (command == "REHASH")
3180 return this->RemoteRehash(prefix,params);
3182 else if (command == "METADATA")
3184 return this->MetaData(prefix,params);
3186 else if (command == "REMSTATUS")
3188 return this->RemoveStatus(prefix,params);
3190 else if (command == "PING")
3193 * We just got a ping from a server that's bursting.
3194 * This can't be right, so set them to not bursting, and
3195 * apply their lines.
3199 this->bursting = false;
3200 Instance->XLines->apply_lines(APPLY_ZLINES|APPLY_GLINES|APPLY_QLINES);
3204 prefix = this->GetName();
3206 return this->LocalPing(prefix,params);
3208 else if (command == "PONG")
3211 * We just got a pong from a server that's bursting.
3212 * This can't be right, so set them to not bursting, and
3213 * apply their lines.
3217 this->bursting = false;
3218 Instance->XLines->apply_lines(APPLY_ZLINES|APPLY_GLINES|APPLY_QLINES);
3222 prefix = this->GetName();
3224 return this->LocalPong(prefix,params);
3226 else if (command == "VERSION")
3228 return this->ServerVersion(prefix,params);
3230 else if (command == "FHOST")
3232 return this->ChangeHost(prefix,params);
3234 else if (command == "FNAME")
3236 return this->ChangeName(prefix,params);
3238 else if (command == "ADDLINE")
3240 return this->AddLine(prefix,params);
3242 else if (command == "SVSNICK")
3246 prefix = this->GetName();
3248 return this->ForceNick(prefix,params);
3250 else if (command == "IDLE")
3252 return this->Whois(prefix,params);
3254 else if (command == "PUSH")
3256 return this->Push(prefix,params);
3258 else if (command == "TIME")
3260 return this->Time(prefix,params);
3262 else if ((command == "KICK") && (IsServer(prefix)))
3264 std::string sourceserv = this->myhost;
3265 if (params.size() == 3)
3267 userrec* user = this->Instance->FindNick(params[1]);
3268 chanrec* chan = this->Instance->FindChan(params[0]);
3271 if (!chan->ServerKickUser(user, params[2].c_str(), false))
3272 /* Yikes, the channels gone! */
3276 if (this->InboundServerName != "")
3278 sourceserv = this->InboundServerName;
3280 return DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
3282 else if (command == "SVSJOIN")
3286 prefix = this->GetName();
3288 return this->ServiceJoin(prefix,params);
3290 else if (command == "SQUIT")
3292 if (params.size() == 2)
3294 this->Squit(FindServer(params[0]),params[1]);
3298 else if (command == "ENDBURST")
3300 this->bursting = false;
3301 Instance->XLines->apply_lines(APPLY_ZLINES|APPLY_GLINES|APPLY_QLINES);
3302 std::string sourceserv = this->myhost;
3303 if (this->InboundServerName != "")
3305 sourceserv = this->InboundServerName;
3307 this->Instance->SNO->WriteToSnoMask('l',"Received end of netburst from \2%s\2",sourceserv.c_str());
3312 // not a special inter-server command.
3313 // Emulate the actual user doing the command,
3314 // this saves us having a huge ugly parser.
3315 userrec* who = this->Instance->FindNick(prefix);
3316 std::string sourceserv = this->myhost;
3317 if (this->InboundServerName != "")
3319 sourceserv = this->InboundServerName;
3323 if ((command == "NICK") && (params.size() > 0))
3325 /* On nick messages, check that the nick doesnt
3326 * already exist here. If it does, kill their copy,
3329 userrec* x = this->Instance->FindNick(params[0]);
3330 if ((x) && (x != who))
3332 std::deque<std::string> p;
3333 p.push_back(params[0]);
3334 p.push_back("Nickname collision ("+prefix+" -> "+params[0]+")");
3335 DoOneToMany(this->Instance->Config->ServerName,"KILL",p);
3337 p.push_back(prefix);
3338 p.push_back("Nickname collision");
3339 DoOneToMany(this->Instance->Config->ServerName,"KILL",p);
3340 userrec::QuitUser(this->Instance,x,"Nickname collision ("+prefix+" -> "+params[0]+")");
3341 userrec* y = this->Instance->FindNick(prefix);
3344 userrec::QuitUser(this->Instance,y,"Nickname collision");
3346 return DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
3350 target = who->server;
3351 const char* strparams[127];
3352 for (unsigned int q = 0; q < params.size(); q++)
3354 strparams[q] = params[q].c_str();
3356 switch (this->Instance->CallCommandHandler(command.c_str(), strparams, params.size(), who))
3359 this->WriteLine("ERROR :Unrecognised command '"+std::string(command.c_str())+"' -- possibly loaded mismatched modules");
3366 /* CMD_SUCCESS and CMD_USER_DELETED fall through here */
3372 // its not a user. Its either a server, or somethings screwed up.
3373 if (IsServer(prefix))
3375 target = this->Instance->Config->ServerName;
3379 Instance->Log(DEBUG,"Command with unknown origin '%s'",prefix.c_str());
3383 return DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
3392 virtual std::string GetName()
3394 std::string sourceserv = this->myhost;
3395 if (this->InboundServerName != "")
3397 sourceserv = this->InboundServerName;
3402 virtual void OnTimeout()
3404 if (this->LinkState == CONNECTING)
3406 this->Instance->SNO->WriteToSnoMask('l',"CONNECT: Connection to \002"+myhost+"\002 timed out.");
3407 Link* MyLink = FindLink(myhost);
3413 virtual void OnClose()
3415 // Connection closed.
3416 // If the connection is fully up (state CONNECTED)
3417 // then propogate a netsplit to all peers.
3418 std::string quitserver = this->myhost;
3419 if (this->InboundServerName != "")
3421 quitserver = this->InboundServerName;
3423 TreeServer* s = FindServer(quitserver);
3426 Squit(s,"Remote host closed the connection");
3428 this->Instance->SNO->WriteToSnoMask('l',"Connection to '\2%s\2' failed.",quitserver.c_str());
3431 virtual int OnIncomingConnection(int newsock, char* ip)
3433 /* To prevent anyone from attempting to flood opers/DDoS by connecting to the server port,
3434 * or discovering if this port is the server port, we don't allow connections from any
3435 * IPs for which we don't have a link block.
3439 found = (std::find(ValidIPs.begin(), ValidIPs.end(), ip) != ValidIPs.end());
3442 for (vector<std::string>::iterator i = ValidIPs.begin(); i != ValidIPs.end(); i++)
3443 if (MatchCIDR(ip, (*i).c_str()))
3448 this->Instance->SNO->WriteToSnoMask('l',"Server connection from %s denied (no link blocks with that IP address)", ip);
3453 TreeSocket* s = new TreeSocket(this->Instance, newsock, ip);
3454 s = s; /* Whinge whinge whinge, thats all GCC ever does. */
3459 /** This class is used to resolve server hostnames during /connect and autoconnect.
3460 * As of 1.1, the resolver system is seperated out from InspSocket, so we must do this
3461 * resolver step first ourselves if we need it. This is totally nonblocking, and will
3462 * callback to OnLookupComplete or OnError when completed. Once it has completed we
3463 * will have an IP address which we can then use to continue our connection.
3465 class ServernameResolver : public Resolver
3468 /** A copy of the Link tag info for what we're connecting to.
3469 * We take a copy, rather than using a pointer, just in case the
3470 * admin takes the tag away and rehashes while the domain is resolving.
3474 ServernameResolver(InspIRCd* Instance, const std::string &hostname, Link x) : Resolver(Instance, hostname, DNS_QUERY_FORWARD), MyLink(x)
3476 /* Nothing in here, folks */
3479 void OnLookupComplete(const std::string &result)
3481 /* Initiate the connection, now that we have an IP to use.
3482 * Passing a hostname directly to InspSocket causes it to
3483 * just bail and set its FD to -1.
3485 TreeServer* CheckDupe = FindServer(MyLink.Name.c_str());
3486 if (!CheckDupe) /* Check that nobody tried to connect it successfully while we were resolving */
3488 TreeSocket* newsocket = new TreeSocket(ServerInstance, result,MyLink.Port,false,10,MyLink.Name.c_str());
3489 if (newsocket->GetFd() > -1)
3495 /* Something barfed, show the opers */
3496 ServerInstance->SNO->WriteToSnoMask('l',"CONNECT: Error connecting \002%s\002: %s.",MyLink.Name.c_str(),strerror(errno));
3498 DoFailOver(&MyLink);
3503 void OnError(ResolverError e, const std::string &errormessage)
3506 ServerInstance->SNO->WriteToSnoMask('l',"CONNECT: Error connecting \002%s\002: Unable to resolve hostname - %s",MyLink.Name.c_str(),errormessage.c_str());
3507 DoFailOver(&MyLink);
3511 class SecurityIPResolver : public Resolver
3516 SecurityIPResolver(InspIRCd* Instance, const std::string &hostname, Link x) : Resolver(Instance, hostname, DNS_QUERY_FORWARD), MyLink(x)
3520 void OnLookupComplete(const std::string &result)
3522 ServerInstance->Log(DEBUG,"Security IP cache: Adding IP address '%s' for Link '%s'",result.c_str(),MyLink.Name.c_str());
3523 ValidIPs.push_back(result);
3526 void OnError(ResolverError e, const std::string &errormessage)
3528 ServerInstance->Log(DEBUG,"Could not resolve IP associated with Link '%s': %s",MyLink.Name.c_str(),errormessage.c_str());
3532 void AddThisServer(TreeServer* server, std::deque<TreeServer*> &list)
3534 for (unsigned int c = 0; c < list.size(); c++)
3536 if (list[c] == server)
3541 list.push_back(server);
3544 /** returns a list of DIRECT servernames for a specific channel */
3545 void GetListOfServersForChannel(chanrec* c, std::deque<TreeServer*> &list)
3547 CUList *ulist = c->GetUsers();
3548 for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
3550 if (i->second->GetFd() < 0)
3552 TreeServer* best = BestRouteTo(i->second->server);
3554 AddThisServer(best,list);
3560 bool DoOneToAllButSenderRaw(std::string data, std::string omit, std::string prefix, irc::string command, std::deque<std::string> ¶ms)
3562 TreeServer* omitroute = BestRouteTo(omit);
3563 if ((command == "NOTICE") || (command == "PRIVMSG"))
3565 if (params.size() >= 2)
3568 if ((*(params[0].c_str()) == '@') || (*(params[0].c_str()) == '%') || (*(params[0].c_str()) == '+'))
3570 params[0] = params[0].substr(1, params[0].length()-1);
3572 if ((*(params[0].c_str()) != '#') && (*(params[0].c_str()) != '$'))
3574 // special routing for private messages/notices
3575 userrec* d = ServerInstance->FindNick(params[0]);
3578 std::deque<std::string> par;
3579 par.push_back(params[0]);
3580 par.push_back(":"+params[1]);
3581 DoOneToOne(prefix,command.c_str(),par,d->server);
3585 else if (*(params[0].c_str()) == '$')
3587 std::deque<std::string> par;
3588 par.push_back(params[0]);
3589 par.push_back(":"+params[1]);
3590 DoOneToAllButSender(prefix,command.c_str(),par,omitroute->GetName());
3595 ServerInstance->Log(DEBUG,"Channel privmsg going to chan %s",params[0].c_str());
3596 chanrec* c = ServerInstance->FindChan(params[0]);
3599 std::deque<TreeServer*> list;
3600 GetListOfServersForChannel(c,list);
3601 ServerInstance->Log(DEBUG,"Got a list of %d servers",list.size());
3602 unsigned int lsize = list.size();
3603 for (unsigned int i = 0; i < lsize; i++)
3605 TreeSocket* Sock = list[i]->GetSocket();
3606 if ((Sock) && (list[i]->GetName() != omit) && (omitroute != list[i]))
3608 ServerInstance->Log(DEBUG,"Writing privmsg to server %s",list[i]->GetName().c_str());
3609 Sock->WriteLine(data);
3617 unsigned int items = TreeRoot->ChildCount();
3618 for (unsigned int x = 0; x < items; x++)
3620 TreeServer* Route = TreeRoot->GetChild(x);
3621 if ((Route) && (Route->GetSocket()) && (Route->GetName() != omit) && (omitroute != Route))
3623 TreeSocket* Sock = Route->GetSocket();
3625 Sock->WriteLine(data);
3631 bool DoOneToAllButSender(std::string prefix, std::string command, std::deque<std::string> ¶ms, std::string omit)
3633 TreeServer* omitroute = BestRouteTo(omit);
3634 std::string FullLine = ":" + prefix + " " + command;
3635 unsigned int words = params.size();
3636 for (unsigned int x = 0; x < words; x++)
3638 FullLine = FullLine + " " + params[x];
3640 unsigned int items = TreeRoot->ChildCount();
3641 for (unsigned int x = 0; x < items; x++)
3643 TreeServer* Route = TreeRoot->GetChild(x);
3644 // Send the line IF:
3645 // The route has a socket (its a direct connection)
3646 // The route isnt the one to be omitted
3647 // The route isnt the path to the one to be omitted
3648 if ((Route) && (Route->GetSocket()) && (Route->GetName() != omit) && (omitroute != Route))
3650 TreeSocket* Sock = Route->GetSocket();
3652 Sock->WriteLine(FullLine);
3658 bool DoOneToMany(std::string prefix, std::string command, std::deque<std::string> ¶ms)
3660 std::string FullLine = ":" + prefix + " " + command;
3661 unsigned int words = params.size();
3662 for (unsigned int x = 0; x < words; x++)
3664 FullLine = FullLine + " " + params[x];
3666 unsigned int items = TreeRoot->ChildCount();
3667 for (unsigned int x = 0; x < items; x++)
3669 TreeServer* Route = TreeRoot->GetChild(x);
3670 if (Route && Route->GetSocket())
3672 TreeSocket* Sock = Route->GetSocket();
3674 Sock->WriteLine(FullLine);
3680 bool DoOneToMany(const char* prefix, const char* command, std::deque<std::string> ¶ms)
3682 std::string spfx = prefix;
3683 std::string scmd = command;
3684 return DoOneToMany(spfx, scmd, params);
3687 bool DoOneToAllButSender(const char* prefix, const char* command, std::deque<std::string> ¶ms, std::string omit)
3689 std::string spfx = prefix;
3690 std::string scmd = command;
3691 return DoOneToAllButSender(spfx, scmd, params, omit);
3694 bool DoOneToOne(std::string prefix, std::string command, std::deque<std::string> ¶ms, std::string target)
3696 TreeServer* Route = BestRouteTo(target);
3699 std::string FullLine = ":" + prefix + " " + command;
3700 unsigned int words = params.size();
3701 for (unsigned int x = 0; x < words; x++)
3703 FullLine = FullLine + " " + params[x];
3705 if (Route && Route->GetSocket())
3707 TreeSocket* Sock = Route->GetSocket();
3709 Sock->WriteLine(FullLine);
3719 std::vector<TreeSocket*> Bindings;
3721 void ReadConfiguration(bool rebind)
3723 Conf = new ConfigReader(ServerInstance);
3726 for (int j =0; j < Conf->Enumerate("bind"); j++)
3728 std::string Type = Conf->ReadValue("bind","type",j);
3729 std::string IP = Conf->ReadValue("bind","address",j);
3730 long Port = Conf->ReadInteger("bind","port",j,true);
3731 if (Type == "servers")
3737 TreeSocket* listener = new TreeSocket(ServerInstance, IP.c_str(),Port,true,10);
3738 if (listener->GetState() == I_LISTENING)
3740 Bindings.push_back(listener);
3744 ServerInstance->Log(DEFAULT,"m_spanningtree: Warning: Failed to bind server port %d",Port);
3751 FlatLinks = Conf->ReadFlag("options","flatlinks",0);
3752 HideULines = Conf->ReadFlag("options","hideulines",0);
3755 for (int j =0; j < Conf->Enumerate("link"); j++)
3758 std::string Allow = Conf->ReadValue("link","allowmask",j);
3759 L.Name = (Conf->ReadValue("link","name",j)).c_str();
3760 L.IPAddr = Conf->ReadValue("link","ipaddr",j);
3761 L.FailOver = Conf->ReadValue("link","failover",j).c_str();
3762 L.Port = Conf->ReadInteger("link","port",j,true);
3763 L.SendPass = Conf->ReadValue("link","sendpass",j);
3764 L.RecvPass = Conf->ReadValue("link","recvpass",j);
3765 L.AutoConnect = Conf->ReadInteger("link","autoconnect",j,true);
3766 L.EncryptionKey = Conf->ReadValue("link","encryptionkey",j);
3767 L.HiddenFromStats = Conf->ReadFlag("link","hidden",j);
3768 L.NextConnectTime = time(NULL) + L.AutoConnect;
3769 /* Bugfix by brain, do not allow people to enter bad configurations */
3770 if (L.Name != ServerInstance->Config->ServerName)
3772 if ((L.IPAddr != "") && (L.RecvPass != "") && (L.SendPass != "") && (L.Name != "") && (L.Port))
3774 ValidIPs.push_back(L.IPAddr);
3777 ValidIPs.push_back(Allow);
3779 /* Needs resolving */
3781 if (insp_aton(L.IPAddr.c_str(), &binip) < 1)
3785 SecurityIPResolver* sr = new SecurityIPResolver(ServerInstance, L.IPAddr, L);
3786 ServerInstance->AddResolver(sr);
3788 catch (ModuleException& e)
3790 ServerInstance->Log(DEBUG,"Error in resolver: %s",e.GetReason());
3794 LinkBlocks.push_back(L);
3795 ServerInstance->Log(DEBUG,"m_spanningtree: Read server %s with host %s:%d",L.Name.c_str(),L.IPAddr.c_str(),L.Port);
3801 ServerInstance->Log(DEFAULT,"Invalid configuration for server '%s', IP address not defined!",L.Name.c_str());
3803 else if (L.RecvPass == "")
3805 ServerInstance->Log(DEFAULT,"Invalid configuration for server '%s', recvpass not defined!",L.Name.c_str());
3807 else if (L.SendPass == "")
3809 ServerInstance->Log(DEFAULT,"Invalid configuration for server '%s', sendpass not defined!",L.Name.c_str());
3811 else if (L.Name == "")
3813 ServerInstance->Log(DEFAULT,"Invalid configuration, link tag without a name!");
3817 ServerInstance->Log(DEFAULT,"Invalid configuration for server '%s', no port specified!",L.Name.c_str());
3823 ServerInstance->Log(DEFAULT,"Invalid configuration for server '%s', link tag has the same server name as the local server!",L.Name.c_str());
3830 class ModuleSpanningTree : public Module
3832 std::vector<TreeSocket*> Bindings;
3835 unsigned int max_local;
3836 unsigned int max_global;
3837 cmd_rconnect* command_rconnect;
3841 ModuleSpanningTree(InspIRCd* Me)
3842 : Module::Module(Me), max_local(0), max_global(0)
3847 ::ServerInstance = Me;
3849 // Create the root of the tree
3850 TreeRoot = new TreeServer(ServerInstance, ServerInstance->Config->ServerName, ServerInstance->Config->ServerDesc);
3852 ReadConfiguration(true);
3854 command_rconnect = new cmd_rconnect(ServerInstance, this);
3855 ServerInstance->AddCommand(command_rconnect);
3858 void ShowLinks(TreeServer* Current, userrec* user, int hops)
3860 std::string Parent = TreeRoot->GetName();
3861 if (Current->GetParent())
3863 Parent = Current->GetParent()->GetName();
3865 for (unsigned int q = 0; q < Current->ChildCount(); q++)
3867 if ((HideULines) && (ServerInstance->ULine(Current->GetChild(q)->GetName().c_str())))
3871 ShowLinks(Current->GetChild(q),user,hops+1);
3876 ShowLinks(Current->GetChild(q),user,hops+1);
3879 /* Don't display the line if its a uline, hide ulines is on, and the user isnt an oper */
3880 if ((HideULines) && (ServerInstance->ULine(Current->GetName().c_str())) && (!*user->oper))
3882 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());
3885 int CountLocalServs()
3887 return TreeRoot->ChildCount();
3892 return serverlist.size();
3895 void HandleLinks(const char** parameters, int pcnt, userrec* user)
3897 ShowLinks(TreeRoot,user,0);
3898 user->WriteServ("365 %s * :End of /LINKS list.",user->nick);
3902 void HandleLusers(const char** parameters, int pcnt, userrec* user)
3904 unsigned int n_users = ServerInstance->UserCount();
3906 /* Only update these when someone wants to see them, more efficient */
3907 if ((unsigned int)ServerInstance->LocalUserCount() > max_local)
3908 max_local = ServerInstance->LocalUserCount();
3909 if (n_users > max_global)
3910 max_global = n_users;
3912 user->WriteServ("251 %s :There are %d users and %d invisible on %d servers",user->nick,n_users-ServerInstance->InvisibleUserCount(),ServerInstance->InvisibleUserCount(),this->CountServs());
3913 if (ServerInstance->OperCount())
3914 user->WriteServ("252 %s %d :operator(s) online",user->nick,ServerInstance->OperCount());
3915 if (ServerInstance->UnregisteredUserCount())
3916 user->WriteServ("253 %s %d :unknown connections",user->nick,ServerInstance->UnregisteredUserCount());
3917 if (ServerInstance->ChannelCount())
3918 user->WriteServ("254 %s %d :channels formed",user->nick,ServerInstance->ChannelCount());
3919 user->WriteServ("254 %s :I have %d clients and %d servers",user->nick,ServerInstance->LocalUserCount(),this->CountLocalServs());
3920 user->WriteServ("265 %s :Current Local Users: %d Max: %d",user->nick,ServerInstance->LocalUserCount(),max_local);
3921 user->WriteServ("266 %s :Current Global Users: %d Max: %d",user->nick,n_users,max_global);
3925 // WARNING: NOT THREAD SAFE - DONT GET ANY SMART IDEAS.
3927 void ShowMap(TreeServer* Current, userrec* user, int depth, char matrix[128][80], float &totusers, float &totservers)
3931 for (int t = 0; t < depth; t++)
3933 matrix[line][t] = ' ';
3936 // For Aligning, we need to work out exactly how deep this thing is, and produce
3937 // a 'Spacer' String to compensate.
3940 memset(spacer,' ',40);
3941 if ((40 - Current->GetName().length() - depth) > 1) {
3942 spacer[40 - Current->GetName().length() - depth] = '\0';
3951 if (ServerInstance->clientlist.size() == 0) {
3952 // If there are no users, WHO THE HELL DID THE /MAP?!?!?!
3957 percent = ((float)Current->GetUserCount() / (float)ServerInstance->clientlist.size()) * 100;
3959 snprintf(text, 80, "%s %s%5d [%5.2f%%]", Current->GetName().c_str(), spacer, Current->GetUserCount(), percent);
3960 totusers += Current->GetUserCount();
3962 strlcpy(&matrix[line][depth],text,80);
3964 for (unsigned int q = 0; q < Current->ChildCount(); q++)
3966 if ((HideULines) && (ServerInstance->ULine(Current->GetChild(q)->GetName().c_str())))
3970 ShowMap(Current->GetChild(q),user,(FlatLinks && (!*user->oper)) ? depth : depth+2,matrix,totusers,totservers);
3975 ShowMap(Current->GetChild(q),user,(FlatLinks && (!*user->oper)) ? depth : depth+2,matrix,totusers,totservers);
3981 int HandleMotd(const char** parameters, int pcnt, userrec* user)
3985 /* Remote MOTD, the server is within the 1st parameter */
3986 std::deque<std::string> params;
3987 params.push_back(parameters[0]);
3989 /* Send it out remotely, generate no reply yet */
3990 TreeServer* s = FindServerMask(parameters[0]);
3993 DoOneToOne(user->nick, "MOTD", params, s->GetName());
3997 user->WriteServ( "402 %s %s :No such server", user->nick, parameters[0]);
4004 int HandleAdmin(const char** parameters, int pcnt, userrec* user)
4008 /* Remote ADMIN, the server is within the 1st parameter */
4009 std::deque<std::string> params;
4010 params.push_back(parameters[0]);
4012 /* Send it out remotely, generate no reply yet */
4013 TreeServer* s = FindServerMask(parameters[0]);
4016 DoOneToOne(user->nick, "ADMIN", params, s->GetName());
4020 user->WriteServ( "402 %s %s :No such server", user->nick, parameters[0]);
4027 int HandleStats(const char** parameters, int pcnt, userrec* user)
4031 /* Remote STATS, the server is within the 2nd parameter */
4032 std::deque<std::string> params;
4033 params.push_back(parameters[0]);
4034 params.push_back(parameters[1]);
4035 /* Send it out remotely, generate no reply yet */
4036 TreeServer* s = FindServerMask(parameters[1]);
4039 params[1] = s->GetName();
4040 DoOneToOne(user->nick, "STATS", params, s->GetName());
4044 user->WriteServ( "402 %s %s :No such server", user->nick, parameters[0]);
4051 // Ok, prepare to be confused.
4052 // After much mulling over how to approach this, it struck me that
4053 // the 'usual' way of doing a /MAP isnt the best way. Instead of
4054 // keeping track of a ton of ascii characters, and line by line
4055 // under recursion working out where to place them using multiplications
4056 // and divisons, we instead render the map onto a backplane of characters
4057 // (a character matrix), then draw the branches as a series of "L" shapes
4058 // from the nodes. This is not only friendlier on CPU it uses less stack.
4060 void HandleMap(const char** parameters, int pcnt, userrec* user)
4062 // This array represents a virtual screen which we will
4063 // "scratch" draw to, as the console device of an irc
4064 // client does not provide for a proper terminal.
4066 float totservers = 0;
4067 char matrix[128][80];
4068 for (unsigned int t = 0; t < 128; t++)
4070 matrix[t][0] = '\0';
4073 // The only recursive bit is called here.
4074 ShowMap(TreeRoot,user,0,matrix,totusers,totservers);
4075 // Process each line one by one. The algorithm has a limit of
4076 // 128 servers (which is far more than a spanning tree should have
4077 // anyway, so we're ok). This limit can be raised simply by making
4078 // the character matrix deeper, 128 rows taking 10k of memory.
4079 for (int l = 1; l < line; l++)
4081 // scan across the line looking for the start of the
4082 // servername (the recursive part of the algorithm has placed
4083 // the servers at indented positions depending on what they
4085 int first_nonspace = 0;
4086 while (matrix[l][first_nonspace] == ' ')
4091 // Draw the `- (corner) section: this may be overwritten by
4092 // another L shape passing along the same vertical pane, becoming
4093 // a |- (branch) section instead.
4094 matrix[l][first_nonspace] = '-';
4095 matrix[l][first_nonspace-1] = '`';
4097 // Draw upwards until we hit the parent server, causing possibly
4098 // other corners (`-) to become branches (|-)
4099 while ((matrix[l2][first_nonspace-1] == ' ') || (matrix[l2][first_nonspace-1] == '`'))
4101 matrix[l2][first_nonspace-1] = '|';
4105 // dump the whole lot to the user. This is the easy bit, honest.
4106 for (int t = 0; t < line; t++)
4108 user->WriteServ("006 %s :%s",user->nick,&matrix[t][0]);
4110 float avg_users = totusers / totservers;
4111 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);
4112 user->WriteServ("007 %s :End of /MAP",user->nick);
4116 int HandleSquit(const char** parameters, int pcnt, userrec* user)
4118 TreeServer* s = FindServerMask(parameters[0]);
4123 user->WriteServ("NOTICE %s :*** SQUIT: Foolish mortal, you cannot make a server SQUIT itself! (%s matches local server name)",user->nick,parameters[0]);
4126 TreeSocket* sock = s->GetSocket();
4129 ServerInstance->Log(DEBUG,"Splitting server %s",s->GetName().c_str());
4130 ServerInstance->SNO->WriteToSnoMask('l',"SQUIT: Server \002%s\002 removed from network by %s",parameters[0],user->nick);
4131 sock->Squit(s,"Server quit by "+std::string(user->nick)+"!"+std::string(user->ident)+"@"+std::string(user->host));
4132 ServerInstance->SE->DelFd(sock);
4138 user->WriteServ("NOTICE %s :*** SQUIT: The server \002%s\002 is not directly connected.",user->nick,parameters[0]);
4143 user->WriteServ("NOTICE %s :*** SQUIT: The server \002%s\002 does not exist on the network.",user->nick,parameters[0]);
4148 int HandleTime(const char** parameters, int pcnt, userrec* user)
4150 if ((IS_LOCAL(user)) && (pcnt))
4152 TreeServer* found = FindServerMask(parameters[0]);
4155 // we dont' override for local server
4156 if (found == TreeRoot)
4159 std::deque<std::string> params;
4160 params.push_back(found->GetName());
4161 params.push_back(user->nick);
4162 DoOneToOne(ServerInstance->Config->ServerName,"TIME",params,found->GetName());
4166 user->WriteServ("402 %s %s :No such server",user->nick,parameters[0]);
4172 int HandleRemoteWhois(const char** parameters, int pcnt, userrec* user)
4174 if ((IS_LOCAL(user)) && (pcnt > 1))
4176 userrec* remote = ServerInstance->FindNick(parameters[1]);
4177 if ((remote) && (remote->GetFd() < 0))
4179 std::deque<std::string> params;
4180 params.push_back(parameters[1]);
4181 DoOneToOne(user->nick,"IDLE",params,remote->server);
4186 user->WriteServ("401 %s %s :No such nick/channel",user->nick, parameters[1]);
4187 user->WriteServ("318 %s %s :End of /WHOIS list.",user->nick, parameters[1]);
4194 void DoPingChecks(time_t curtime)
4196 for (unsigned int j = 0; j < TreeRoot->ChildCount(); j++)
4198 TreeServer* serv = TreeRoot->GetChild(j);
4199 TreeSocket* sock = serv->GetSocket();
4202 if (curtime >= serv->NextPingTime())
4204 if (serv->AnsweredLastPing())
4206 sock->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" PING "+serv->GetName());
4207 serv->SetNextPingTime(curtime + 60);
4211 // they didnt answer, boot them
4212 ServerInstance->SNO->WriteToSnoMask('l',"Server \002%s\002 pinged out",serv->GetName().c_str());
4213 sock->Squit(serv,"Ping timeout");
4214 ServerInstance->SE->DelFd(sock);
4224 void ConnectServer(Link* x)
4228 /* Do we already have an IP? If so, no need to resolve it. */
4229 if (insp_aton(x->IPAddr.c_str(), &binip) > 0)
4231 TreeSocket* newsocket = new TreeSocket(ServerInstance, x->IPAddr,x->Port,false,10,x->Name.c_str());
4232 if (newsocket->GetFd() > -1)
4234 /* Handled automatically on success */
4238 ServerInstance->SNO->WriteToSnoMask('l',"CONNECT: Error connecting \002%s\002: %s.",x->Name.c_str(),strerror(errno));
4240 this->DoFailOver(x);
4247 ServernameResolver* snr = new ServernameResolver(ServerInstance,x->IPAddr, *x);
4248 ServerInstance->AddResolver(snr);
4250 catch (ModuleException& e)
4252 ServerInstance->Log(DEBUG,"Error in resolver: %s",e.GetReason());
4253 this->DoFailOver(x);
4258 void DoFailOver(Link* x)
4260 if (x->FailOver.length())
4262 if (x->FailOver == x->Name)
4264 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());
4267 Link* TryThisOne = this->FindLink(x->FailOver.c_str());
4270 ServerInstance->SNO->WriteToSnoMask('l',"FAILOVER: Trying failover link for \002%s\002: \002%s\002...", x->Name.c_str(), TryThisOne->Name.c_str());
4271 ConnectServer(TryThisOne);
4275 ServerInstance->SNO->WriteToSnoMask('l',"FAILOVER: Invalid failover server specified for server \002%s\002, will not follow!", x->Name.c_str());
4280 Link* FindLink(const std::string& name)
4282 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
4284 if (ServerInstance->MatchText(x->Name.c_str(), name.c_str()))
4292 void AutoConnectServers(time_t curtime)
4294 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
4296 if ((x->AutoConnect) && (curtime >= x->NextConnectTime))
4298 ServerInstance->Log(DEBUG,"Auto-Connecting %s",x->Name.c_str());
4299 x->NextConnectTime = curtime + x->AutoConnect;
4300 TreeServer* CheckDupe = FindServer(x->Name.c_str());
4301 if (x->FailOver.length())
4303 TreeServer* CheckFailOver = FindServer(x->FailOver.c_str());
4306 /* The failover for this server is currently a member of the network.
4307 * The failover probably succeeded, where the main link did not.
4308 * Don't try the main link until the failover is gone again.
4315 // an autoconnected server is not connected. Check if its time to connect it
4316 ServerInstance->SNO->WriteToSnoMask('l',"AUTOCONNECT: Auto-connecting server \002%s\002 (%lu seconds until next attempt)",x->Name.c_str(),x->AutoConnect);
4317 this->ConnectServer(&(*x));
4323 int HandleVersion(const char** parameters, int pcnt, userrec* user)
4325 // we've already checked if pcnt > 0, so this is safe
4326 TreeServer* found = FindServerMask(parameters[0]);
4329 std::string Version = found->GetVersion();
4330 user->WriteServ("351 %s :%s",user->nick,Version.c_str());
4331 if (found == TreeRoot)
4333 std::stringstream out(ServerInstance->Config->data005);
4334 std::string token = "";
4335 std::string line5 = "";
4336 int token_counter = 0;
4341 line5 = line5 + token + " ";
4344 if ((token_counter >= 13) || (out.eof() == true))
4346 user->WriteServ("005 %s %s:are supported by this server",user->nick,line5.c_str());
4355 user->WriteServ("402 %s %s :No such server",user->nick,parameters[0]);
4360 int HandleConnect(const char** parameters, int pcnt, userrec* user)
4362 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
4364 if (ServerInstance->MatchText(x->Name.c_str(),parameters[0]))
4366 TreeServer* CheckDupe = FindServer(x->Name.c_str());
4369 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);
4370 ConnectServer(&(*x));
4375 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());
4380 user->WriteServ("NOTICE %s :*** CONNECT: No server matching \002%s\002 could be found in the config file.",user->nick,parameters[0]);
4384 virtual int OnStats(char statschar, userrec* user, string_list &results)
4386 if (statschar == 'c')
4388 for (unsigned int i = 0; i < LinkBlocks.size(); i++)
4390 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');
4391 results.push_back(std::string(ServerInstance->Config->ServerName)+" 244 "+user->nick+" H * * "+LinkBlocks[i].Name.c_str());
4393 results.push_back(std::string(ServerInstance->Config->ServerName)+" 219 "+user->nick+" "+statschar+" :End of /STATS report");
4394 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);
4400 virtual int OnPreCommand(const std::string &command, const char** parameters, int pcnt, userrec *user, bool validated, const std::string &original_line)
4402 /* If the command doesnt appear to be valid, we dont want to mess with it. */
4406 if (command == "CONNECT")
4408 return this->HandleConnect(parameters,pcnt,user);
4410 else if (command == "STATS")
4412 return this->HandleStats(parameters,pcnt,user);
4414 else if (command == "MOTD")
4416 return this->HandleMotd(parameters,pcnt,user);
4418 else if (command == "ADMIN")
4420 return this->HandleAdmin(parameters,pcnt,user);
4422 else if (command == "SQUIT")
4424 return this->HandleSquit(parameters,pcnt,user);
4426 else if (command == "MAP")
4428 this->HandleMap(parameters,pcnt,user);
4431 else if ((command == "TIME") && (pcnt > 0))
4433 return this->HandleTime(parameters,pcnt,user);
4435 else if (command == "LUSERS")
4437 this->HandleLusers(parameters,pcnt,user);
4440 else if (command == "LINKS")
4442 this->HandleLinks(parameters,pcnt,user);
4445 else if (command == "WHOIS")
4450 return this->HandleRemoteWhois(parameters,pcnt,user);
4453 else if ((command == "VERSION") && (pcnt > 0))
4455 this->HandleVersion(parameters,pcnt,user);
4462 virtual void OnPostCommand(const std::string &command, const char** parameters, int pcnt, userrec *user, CmdResult result, const std::string &original_line)
4464 if ((result == CMD_SUCCESS) && (ServerInstance->IsValidModuleCommand(command, pcnt, user)))
4466 // this bit of code cleverly routes all module commands
4467 // to all remote severs *automatically* so that modules
4468 // can just handle commands locally, without having
4469 // to have any special provision in place for remote
4470 // commands and linking protocols.
4471 std::deque<std::string> params;
4473 for (int j = 0; j < pcnt; j++)
4475 if (strchr(parameters[j],' '))
4477 params.push_back(":" + std::string(parameters[j]));
4481 params.push_back(std::string(parameters[j]));
4484 ServerInstance->Log(DEBUG,"Globally route '%s'",command.c_str());
4485 DoOneToMany(user->nick,command,params);
4489 virtual void OnGetServerDescription(const std::string &servername,std::string &description)
4491 TreeServer* s = FindServer(servername);
4494 description = s->GetDesc();
4498 virtual void OnUserInvite(userrec* source,userrec* dest,chanrec* channel)
4500 if (IS_LOCAL(source))
4502 std::deque<std::string> params;
4503 params.push_back(dest->nick);
4504 params.push_back(channel->name);
4505 DoOneToMany(source->nick,"INVITE",params);
4509 virtual void OnPostLocalTopicChange(userrec* user, chanrec* chan, const std::string &topic)
4511 std::deque<std::string> params;
4512 params.push_back(chan->name);
4513 params.push_back(":"+topic);
4514 DoOneToMany(user->nick,"TOPIC",params);
4517 virtual void OnWallops(userrec* user, const std::string &text)
4521 std::deque<std::string> params;
4522 params.push_back(":"+text);
4523 DoOneToMany(user->nick,"WALLOPS",params);
4527 virtual void OnUserNotice(userrec* user, void* dest, int target_type, const std::string &text, char status)
4529 if (target_type == TYPE_USER)
4531 userrec* d = (userrec*)dest;
4532 if ((d->GetFd() < 0) && (IS_LOCAL(user)))
4534 std::deque<std::string> params;
4536 params.push_back(d->nick);
4537 params.push_back(":"+text);
4538 DoOneToOne(user->nick,"NOTICE",params,d->server);
4541 else if (target_type == TYPE_CHANNEL)
4545 chanrec *c = (chanrec*)dest;
4548 std::string cname = c->name;
4550 cname = status + cname;
4551 std::deque<TreeServer*> list;
4552 GetListOfServersForChannel(c,list);
4553 unsigned int ucount = list.size();
4554 for (unsigned int i = 0; i < ucount; i++)
4556 TreeSocket* Sock = list[i]->GetSocket();
4558 Sock->WriteLine(":"+std::string(user->nick)+" NOTICE "+cname+" :"+text);
4563 else if (target_type == TYPE_SERVER)
4567 char* target = (char*)dest;
4568 std::deque<std::string> par;
4569 par.push_back(target);
4570 par.push_back(":"+text);
4571 DoOneToMany(user->nick,"NOTICE",par);
4576 virtual void OnUserMessage(userrec* user, void* dest, int target_type, const std::string &text, char status)
4578 if (target_type == TYPE_USER)
4580 // route private messages which are targetted at clients only to the server
4581 // which needs to receive them
4582 userrec* d = (userrec*)dest;
4583 if ((d->GetFd() < 0) && (IS_LOCAL(user)))
4585 std::deque<std::string> params;
4587 params.push_back(d->nick);
4588 params.push_back(":"+text);
4589 DoOneToOne(user->nick,"PRIVMSG",params,d->server);
4592 else if (target_type == TYPE_CHANNEL)
4596 chanrec *c = (chanrec*)dest;
4599 std::string cname = c->name;
4601 cname = status + cname;
4602 std::deque<TreeServer*> list;
4603 GetListOfServersForChannel(c,list);
4604 unsigned int ucount = list.size();
4605 for (unsigned int i = 0; i < ucount; i++)
4607 TreeSocket* Sock = list[i]->GetSocket();
4609 Sock->WriteLine(":"+std::string(user->nick)+" PRIVMSG "+cname+" :"+text);
4614 else if (target_type == TYPE_SERVER)
4618 char* target = (char*)dest;
4619 std::deque<std::string> par;
4620 par.push_back(target);
4621 par.push_back(":"+text);
4622 DoOneToMany(user->nick,"PRIVMSG",par);
4627 virtual void OnBackgroundTimer(time_t curtime)
4629 AutoConnectServers(curtime);
4630 DoPingChecks(curtime);
4633 virtual void OnUserJoin(userrec* user, chanrec* channel)
4635 // Only do this for local users
4638 std::deque<std::string> params;
4640 params.push_back(channel->name);
4641 // set up their permissions and the channel TS with FJOIN.
4642 // All users are FJOINed now, because a module may specify
4643 // new joining permissions for the user.
4645 params.push_back(channel->name);
4646 params.push_back(ConvToStr(channel->age));
4647 params.push_back(std::string(channel->GetAllPrefixChars(user))+","+std::string(user->nick));
4648 DoOneToMany(ServerInstance->Config->ServerName,"FJOIN",params);
4652 virtual void OnChangeHost(userrec* user, const std::string &newhost)
4654 // only occurs for local clients
4655 if (user->registered != REG_ALL)
4657 std::deque<std::string> params;
4658 params.push_back(newhost);
4659 DoOneToMany(user->nick,"FHOST",params);
4662 virtual void OnChangeName(userrec* user, const std::string &gecos)
4664 // only occurs for local clients
4665 if (user->registered != REG_ALL)
4667 std::deque<std::string> params;
4668 params.push_back(gecos);
4669 DoOneToMany(user->nick,"FNAME",params);
4672 virtual void OnUserPart(userrec* user, chanrec* channel, const std::string &partmessage)
4676 std::deque<std::string> params;
4677 params.push_back(channel->name);
4678 if (partmessage != "")
4679 params.push_back(":"+partmessage);
4680 DoOneToMany(user->nick,"PART",params);
4684 virtual void OnUserConnect(userrec* user)
4686 char agestr[MAXBUF];
4689 std::deque<std::string> params;
4690 snprintf(agestr,MAXBUF,"%lu",(unsigned long)user->age);
4691 params.push_back(agestr);
4692 params.push_back(user->nick);
4693 params.push_back(user->host);
4694 params.push_back(user->dhost);
4695 params.push_back(user->ident);
4696 params.push_back("+"+std::string(user->FormatModes()));
4697 params.push_back(user->GetIPString());
4698 params.push_back(":"+std::string(user->fullname));
4699 DoOneToMany(ServerInstance->Config->ServerName,"NICK",params);
4701 // User is Local, change needs to be reflected!
4702 TreeServer* SourceServer = FindServer(user->server);
4705 SourceServer->AddUserCount();
4711 virtual void OnUserQuit(userrec* user, const std::string &reason)
4713 if ((IS_LOCAL(user)) && (user->registered == REG_ALL))
4715 std::deque<std::string> params;
4716 params.push_back(":"+reason);
4717 DoOneToMany(user->nick,"QUIT",params);
4719 // Regardless, We need to modify the user Counts..
4720 TreeServer* SourceServer = FindServer(user->server);
4723 SourceServer->DelUserCount();
4728 virtual void OnUserPostNick(userrec* user, const std::string &oldnick)
4732 std::deque<std::string> params;
4733 params.push_back(user->nick);
4734 DoOneToMany(oldnick,"NICK",params);
4738 virtual void OnUserKick(userrec* source, userrec* user, chanrec* chan, const std::string &reason)
4740 if ((source) && (IS_LOCAL(source)))
4742 std::deque<std::string> params;
4743 params.push_back(chan->name);
4744 params.push_back(user->nick);
4745 params.push_back(":"+reason);
4746 DoOneToMany(source->nick,"KICK",params);
4750 std::deque<std::string> params;
4751 params.push_back(chan->name);
4752 params.push_back(user->nick);
4753 params.push_back(":"+reason);
4754 DoOneToMany(ServerInstance->Config->ServerName,"KICK",params);
4758 virtual void OnRemoteKill(userrec* source, userrec* dest, const std::string &reason)
4760 std::deque<std::string> params;
4761 params.push_back(dest->nick);
4762 params.push_back(":"+reason);
4763 DoOneToMany(source->nick,"KILL",params);
4766 virtual void OnRehash(const std::string ¶meter)
4768 if (parameter != "")
4770 std::deque<std::string> params;
4771 params.push_back(parameter);
4772 DoOneToMany(ServerInstance->Config->ServerName,"REHASH",params);
4774 if (ServerInstance->MatchText(ServerInstance->Config->ServerName,parameter))
4776 ServerInstance->WriteOpers("*** Remote rehash initiated from server \002%s\002",ServerInstance->Config->ServerName);
4777 ServerInstance->RehashServer();
4780 ReadConfiguration(false);
4783 // note: the protocol does not allow direct umode +o except
4784 // via NICK with 8 params. sending OPERTYPE infers +o modechange
4786 virtual void OnOper(userrec* user, const std::string &opertype)
4790 std::deque<std::string> params;
4791 params.push_back(opertype);
4792 DoOneToMany(user->nick,"OPERTYPE",params);
4796 void OnLine(userrec* source, const std::string &host, bool adding, char linetype, long duration, const std::string &reason)
4798 if (IS_LOCAL(source))
4801 snprintf(type,8,"%cLINE",linetype);
4802 std::string stype = type;
4805 char sduration[MAXBUF];
4806 snprintf(sduration,MAXBUF,"%ld",duration);
4807 std::deque<std::string> params;
4808 params.push_back(host);
4809 params.push_back(sduration);
4810 params.push_back(":"+reason);
4811 DoOneToMany(source->nick,stype,params);
4815 std::deque<std::string> params;
4816 params.push_back(host);
4817 DoOneToMany(source->nick,stype,params);
4822 virtual void OnAddGLine(long duration, userrec* source, const std::string &reason, const std::string &hostmask)
4824 OnLine(source,hostmask,true,'G',duration,reason);
4827 virtual void OnAddZLine(long duration, userrec* source, const std::string &reason, const std::string &ipmask)
4829 OnLine(source,ipmask,true,'Z',duration,reason);
4832 virtual void OnAddQLine(long duration, userrec* source, const std::string &reason, const std::string &nickmask)
4834 OnLine(source,nickmask,true,'Q',duration,reason);
4837 virtual void OnAddELine(long duration, userrec* source, const std::string &reason, const std::string &hostmask)
4839 OnLine(source,hostmask,true,'E',duration,reason);
4842 virtual void OnDelGLine(userrec* source, const std::string &hostmask)
4844 OnLine(source,hostmask,false,'G',0,"");
4847 virtual void OnDelZLine(userrec* source, const std::string &ipmask)
4849 OnLine(source,ipmask,false,'Z',0,"");
4852 virtual void OnDelQLine(userrec* source, const std::string &nickmask)
4854 OnLine(source,nickmask,false,'Q',0,"");
4857 virtual void OnDelELine(userrec* source, const std::string &hostmask)
4859 OnLine(source,hostmask,false,'E',0,"");
4862 virtual void OnMode(userrec* user, void* dest, int target_type, const std::string &text)
4864 if ((IS_LOCAL(user)) && (user->registered == REG_ALL))
4866 if (target_type == TYPE_USER)
4868 userrec* u = (userrec*)dest;
4869 std::deque<std::string> params;
4870 params.push_back(u->nick);
4871 params.push_back(text);
4872 DoOneToMany(user->nick,"MODE",params);
4876 chanrec* c = (chanrec*)dest;
4877 std::deque<std::string> params;
4878 params.push_back(c->name);
4879 params.push_back(text);
4880 DoOneToMany(user->nick,"MODE",params);
4885 virtual void OnSetAway(userrec* user)
4889 std::deque<std::string> params;
4890 params.push_back(":"+std::string(user->awaymsg));
4891 DoOneToMany(user->nick,"AWAY",params);
4895 virtual void OnCancelAway(userrec* user)
4899 std::deque<std::string> params;
4901 DoOneToMany(user->nick,"AWAY",params);
4905 virtual void ProtoSendMode(void* opaque, int target_type, void* target, const std::string &modeline)
4907 TreeSocket* s = (TreeSocket*)opaque;
4910 if (target_type == TYPE_USER)
4912 userrec* u = (userrec*)target;
4913 s->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" FMODE "+u->nick+" "+ConvToStr(u->age)+" "+modeline);
4917 chanrec* c = (chanrec*)target;
4918 s->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" FMODE "+c->name+" "+ConvToStr(c->age)+" "+modeline);
4923 virtual void ProtoSendMetaData(void* opaque, int target_type, void* target, const std::string &extname, const std::string &extdata)
4925 TreeSocket* s = (TreeSocket*)opaque;
4928 if (target_type == TYPE_USER)
4930 userrec* u = (userrec*)target;
4931 s->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" METADATA "+u->nick+" "+extname+" :"+extdata);
4933 else if (target_type == TYPE_OTHER)
4935 s->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" METADATA * "+extname+" :"+extdata);
4937 else if (target_type == TYPE_CHANNEL)
4939 chanrec* c = (chanrec*)target;
4940 s->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" METADATA "+c->name+" "+extname+" :"+extdata);
4945 virtual void OnEvent(Event* event)
4947 std::deque<std::string>* params = (std::deque<std::string>*)event->GetData();
4949 if (event->GetEventID() == "send_metadata")
4951 if (params->size() < 3)
4953 (*params)[2] = ":" + (*params)[2];
4954 DoOneToMany(ServerInstance->Config->ServerName,"METADATA",*params);
4956 else if (event->GetEventID() == "send_topic")
4958 if (params->size() < 2)
4960 (*params)[1] = ":" + (*params)[1];
4961 params->insert(params->begin() + 1,ServerInstance->Config->ServerName);
4962 params->insert(params->begin() + 1,ConvToStr(ServerInstance->Time()));
4963 DoOneToMany(ServerInstance->Config->ServerName,"FTOPIC",*params);
4965 else if (event->GetEventID() == "send_mode")
4967 if (params->size() < 2)
4969 // Insert the TS value of the object, either userrec or chanrec
4971 userrec* a = ServerInstance->FindNick((*params)[0]);
4978 chanrec* a = ServerInstance->FindChan((*params)[0]);
4984 params->insert(params->begin() + 1,ConvToStr(ourTS));
4985 DoOneToMany(ServerInstance->Config->ServerName,"FMODE",*params);
4989 virtual ~ModuleSpanningTree()
4993 virtual Version GetVersion()
4995 return Version(1,1,0,2,VF_STATIC|VF_VENDOR,API_VERSION);
4998 void Implements(char* List)
5000 List[I_OnPreCommand] = List[I_OnGetServerDescription] = List[I_OnUserInvite] = List[I_OnPostLocalTopicChange] = 1;
5001 List[I_OnWallops] = List[I_OnUserNotice] = List[I_OnUserMessage] = List[I_OnBackgroundTimer] = 1;
5002 List[I_OnUserJoin] = List[I_OnChangeHost] = List[I_OnChangeName] = List[I_OnUserPart] = List[I_OnUserConnect] = 1;
5003 List[I_OnUserQuit] = List[I_OnUserPostNick] = List[I_OnUserKick] = List[I_OnRemoteKill] = List[I_OnRehash] = 1;
5004 List[I_OnOper] = List[I_OnAddGLine] = List[I_OnAddZLine] = List[I_OnAddQLine] = List[I_OnAddELine] = 1;
5005 List[I_OnDelGLine] = List[I_OnDelZLine] = List[I_OnDelQLine] = List[I_OnDelELine] = List[I_ProtoSendMode] = List[I_OnMode] = 1;
5006 List[I_OnStats] = List[I_ProtoSendMetaData] = List[I_OnEvent] = List[I_OnSetAway] = List[I_OnCancelAway] = List[I_OnPostCommand] = 1;
5009 /* It is IMPORTANT that m_spanningtree is the last module in the chain
5010 * so that any activity it sees is FINAL, e.g. we arent going to send out
5011 * a NICK message before m_cloaking has finished putting the +x on the user,
5013 * Therefore, we return PRIORITY_LAST to make sure we end up at the END of
5014 * the module call queue.
5016 Priority Prioritize()
5018 return PRIORITY_LAST;
5022 void DoFailOver(Link* x)
5024 TreeProtocolModule->DoFailOver(x);
5027 Link* FindLink(const std::string& name)
5029 return TreeProtocolModule->FindLink(name);
5032 class ModuleSpanningTreeFactory : public ModuleFactory
5035 ModuleSpanningTreeFactory()
5039 ~ModuleSpanningTreeFactory()
5043 virtual Module * CreateModule(InspIRCd* Me)
5045 TreeProtocolModule = new ModuleSpanningTree(Me);
5046 return TreeProtocolModule;
5052 extern "C" void * init_module( void )
5054 return new ModuleSpanningTreeFactory;