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 */
25 #include "inspircd_config.h"
27 #include "configreader.h"
32 #include "commands/cmd_whois.h"
33 #include "commands/cmd_stats.h"
38 #include "inspstring.h"
42 #include "cull_list.h"
45 #define nspace __gnu_cxx
48 * The server list in InspIRCd is maintained as two structures
49 * which hold the data in different ways. Most of the time, we
50 * want to very quicky obtain three pieces of information:
52 * (1) The information on a server
53 * (2) The information on the server we must send data through
54 * to actually REACH the server we're after
55 * (3) Potentially, the child/parent objects of this server
57 * The InspIRCd spanning protocol provides easy access to these
58 * by storing the data firstly in a recursive structure, where
59 * each item references its parent item, and a dynamic list
60 * of child items, and another structure which stores the items
61 * hashed, linearly. This means that if we want to find a server
62 * by name quickly, we can look it up in the hash, avoiding
63 * any O(n) lookups. If however, during a split or sync, we want
64 * to apply an operation to a server, and any of its child objects
65 * we can resort to recursion to walk the tree structure.
68 using irc::sockets::MatchCIDR;
70 class ModuleSpanningTree;
71 static ModuleSpanningTree* TreeProtocolModule;
72 static InspIRCd* ServerInstance;
74 /* Any socket can have one of five states at any one time.
75 * The LISTENER state indicates a socket which is listening
76 * for connections. It cannot receive data itself, only incoming
78 * The CONNECTING state indicates an outbound socket which is
79 * waiting to be writeable.
80 * The WAIT_AUTH_1 state indicates the socket is outbound and
81 * has successfully connected, but has not yet sent and received
83 * The WAIT_AUTH_2 state indicates that the socket is inbound
84 * (allocated by a LISTENER) but has not yet sent and received
86 * The CONNECTED state represents a fully authorized, fully
89 enum ServerState { LISTENER, CONNECTING, WAIT_AUTH_1, WAIT_AUTH_2, CONNECTED };
91 /* Foward declarations */
95 /* This variable represents the root of the server tree
96 * (for all intents and purposes, it's us)
100 /* This hash_map holds the hash equivalent of the server
101 * tree, used for rapid linear lookups.
103 typedef nspace::hash_map<std::string, TreeServer*, nspace::hash<string>, irc::StrHashComp> server_hash;
104 server_hash serverlist;
106 typedef nspace::hash_map<std::string, userrec*> uid_hash;
107 typedef nspace::hash_map<std::string, char*> sid_hash;
109 /* More forward declarations */
110 bool DoOneToOne(std::string prefix, std::string command, std::deque<std::string> ¶ms, std::string target);
111 bool DoOneToAllButSender(std::string prefix, std::string command, std::deque<std::string> ¶ms, std::string omit);
112 bool DoOneToAllButSender(const char* prefix, const char* command, std::deque<std::string> ¶ms, std::string omit);
113 bool DoOneToMany(std::string prefix, std::string command, std::deque<std::string> ¶ms);
114 bool DoOneToMany(const char* prefix, const char* command, std::deque<std::string> ¶ms);
115 bool DoOneToAllButSenderRaw(std::string data, std::string omit, std::string prefix, irc::string command, std::deque<std::string> ¶ms);
116 void ReadConfiguration(bool rebind);
118 /* Flatten links and /MAP for non-opers */
120 /* Hide U-Lined servers in /MAP and /LINKS */
123 std::vector<std::string> ValidIPs;
125 class UserManager : public classbase
136 std::string UserToUID(userrec* user)
141 std::string UIDToUser(const std::string &UID)
146 std::string CreateAndAdd(userrec* user)
151 std::string CreateAndAdd(const std::string &servername)
156 std::string ServerToSID(const std::string &servername)
161 std::string SIDToServer(const std::string &SID)
166 userrec* FindByID(const std::string &UID)
173 /* Each server in the tree is represented by one class of
174 * type TreeServer. A locally connected TreeServer can
175 * have a class of type TreeSocket associated with it, for
176 * remote servers, the TreeSocket entry will be NULL.
177 * Each server also maintains a pointer to its parent
178 * (NULL if this server is ours, at the top of the tree)
179 * and a pointer to its "Route" (see the comments in the
180 * constructors below), and also a dynamic list of pointers
181 * to its children which can be iterated recursively
182 * if required. Creating or deleting objects of type
183 i* TreeServer automatically maintains the hash_map of
184 * TreeServer items, deleting and inserting them as they
185 * are created and destroyed.
188 class TreeServer : public classbase
190 InspIRCd* ServerInstance; /* Creator */
191 TreeServer* Parent; /* Parent entry */
192 TreeServer* Route; /* Route entry */
193 std::vector<TreeServer*> Children; /* List of child objects */
194 irc::string ServerName; /* Server's name */
195 std::string ServerDesc; /* Server's description */
196 std::string VersionString; /* Version string or empty string */
197 int UserCount; /* Not used in this version */
198 int OperCount; /* Not used in this version */
199 TreeSocket* Socket; /* For directly connected servers this points at the socket object */
200 time_t NextPing; /* After this time, the server should be PINGed*/
201 bool LastPingWasGood; /* True if the server responded to the last PING with a PONG */
205 /* We don't use this constructor. Its a dummy, and won't cause any insertion
206 * of the TreeServer into the hash_map. See below for the two we DO use.
208 TreeServer(InspIRCd* Instance) : ServerInstance(Instance)
214 UserCount = OperCount = 0;
215 VersionString = ServerInstance->GetVersionString();
218 /* We use this constructor only to create the 'root' item, TreeRoot, which
219 * represents our own server. Therefore, it has no route, no parent, and
220 * no socket associated with it. Its version string is our own local version.
222 TreeServer(InspIRCd* Instance, std::string Name, std::string Desc) : ServerInstance(Instance), ServerName(Name.c_str()), ServerDesc(Desc)
226 UserCount = OperCount = 0;
227 VersionString = ServerInstance->GetVersionString();
229 Socket = NULL; /* Fix by brain */
233 /* When we create a new server, we call this constructor to initialize it.
234 * This constructor initializes the server's Route and Parent, and sets up
235 * its ping counters so that it will be pinged one minute from now.
237 TreeServer(InspIRCd* Instance, std::string Name, std::string Desc, TreeServer* Above, TreeSocket* Sock)
238 : ServerInstance(Instance), Parent(Above), ServerName(Name.c_str()), ServerDesc(Desc), Socket(Sock)
241 UserCount = OperCount = 0;
242 this->SetNextPingTime(time(NULL) + 60);
245 /* find the 'route' for this server (e.g. the one directly connected
246 * to the local server, which we can use to reach it)
248 * In the following example, consider we have just added a TreeServer
249 * class for server G on our network, of which we are server A.
250 * To route traffic to G (marked with a *) we must send the data to
251 * B (marked with a +) so this algorithm initializes the 'Route'
252 * value to point at whichever server traffic must be routed through
253 * to get here. If we were to try this algorithm with server B,
254 * the Route pointer would point at its own object ('this').
264 * We only run this algorithm when a server is created, as
265 * the routes remain constant while ever the server exists, and
266 * do not need to be re-calculated.
270 if (Route == TreeRoot)
276 while (this->Route->GetParent() != TreeRoot)
278 this->Route = Route->GetParent();
282 /* Because recursive code is slow and takes a lot of resources,
283 * we store two representations of the server tree. The first
284 * is a recursive structure where each server references its
285 * children and its parent, which is used for netbursts and
286 * netsplits to dump the whole dataset to the other server,
287 * and the second is used for very fast lookups when routing
288 * messages and is instead a hash_map, where each item can
289 * be referenced by its server name. The AddHashEntry()
290 * call below automatically inserts each TreeServer class
291 * into the hash_map as it is created. There is a similar
292 * maintainance call in the destructor to tidy up deleted
296 this->AddHashEntry();
299 int QuitUsers(const std::string &reason)
301 ServerInstance->Log(DEBUG,"Removing all users from server %s",this->ServerName.c_str());
302 const char* reason_s = reason.c_str();
303 std::vector<userrec*> time_to_die;
304 for (user_hash::iterator n = ServerInstance->clientlist.begin(); n != ServerInstance->clientlist.end(); n++)
306 if (!strcmp(n->second->server, this->ServerName.c_str()))
308 time_to_die.push_back(n->second);
311 for (std::vector<userrec*>::iterator n = time_to_die.begin(); n != time_to_die.end(); n++)
313 userrec* a = (userrec*)*n;
314 ServerInstance->Log(DEBUG,"Kill %s fd=%d",a->nick,a->GetFd());
316 userrec::QuitUser(ServerInstance,a,reason_s);
318 return time_to_die.size();
321 /* This method is used to add the structure to the
322 * hash_map for linear searches. It is only called
323 * by the constructors.
327 server_hash::iterator iter;
328 iter = serverlist.find(this->ServerName.c_str());
329 if (iter == serverlist.end())
330 serverlist[this->ServerName.c_str()] = this;
333 /* This method removes the reference to this object
334 * from the hash_map which is used for linear searches.
335 * It is only called by the default destructor.
339 server_hash::iterator iter;
340 iter = serverlist.find(this->ServerName.c_str());
341 if (iter != serverlist.end())
342 serverlist.erase(iter);
345 /* These accessors etc should be pretty self-
349 TreeServer* GetRoute()
354 std::string GetName()
356 return ServerName.c_str();
359 std::string GetDesc()
364 std::string GetVersion()
366 return VersionString;
369 void SetNextPingTime(time_t t)
372 LastPingWasGood = false;
375 time_t NextPingTime()
380 bool AnsweredLastPing()
382 return LastPingWasGood;
387 LastPingWasGood = true;
410 TreeSocket* GetSocket()
415 TreeServer* GetParent()
420 void SetVersion(std::string Version)
422 VersionString = Version;
425 unsigned int ChildCount()
427 return Children.size();
430 TreeServer* GetChild(unsigned int n)
432 if (n < Children.size())
434 /* Make sure they cant request
435 * an out-of-range object. After
436 * all we know what these programmer
437 * types are like *grin*.
447 void AddChild(TreeServer* Child)
449 Children.push_back(Child);
452 bool DelChild(TreeServer* Child)
454 for (std::vector<TreeServer*>::iterator a = Children.begin(); a < Children.end(); a++)
465 /* Removes child nodes of this node, and of that node, etc etc.
466 * This is used during netsplits to automatically tidy up the
467 * server tree. It is slow, we don't use it for much else.
471 bool stillchildren = true;
472 while (stillchildren)
474 stillchildren = false;
475 for (std::vector<TreeServer*>::iterator a = Children.begin(); a < Children.end(); a++)
477 TreeServer* s = (TreeServer*)*a;
481 stillchildren = true;
490 /* We'd better tidy up after ourselves, eh? */
491 this->DelHashEntry();
495 /* The Link class might as well be a struct,
496 * but this is C++ and we don't believe in structs (!).
497 * It holds the entire information of one <link>
498 * tag from the main config file. We maintain a list
499 * of them, and populate the list on rehash/load.
502 class Link : public classbase
508 std::string SendPass;
509 std::string RecvPass;
510 unsigned long AutoConnect;
511 time_t NextConnectTime;
512 std::string EncryptionKey;
513 bool HiddenFromStats;
516 /* The usual stuff for inspircd modules,
517 * plus the vector of Link classes which we
518 * use to store the <link> tags from the config
522 std::vector<Link> LinkBlocks;
524 /* Yay for fast searches!
525 * This is hundreds of times faster than recursion
526 * or even scanning a linked list, especially when
527 * there are more than a few servers to deal with.
530 TreeServer* FindServer(std::string ServerName)
532 server_hash::iterator iter;
533 iter = serverlist.find(ServerName.c_str());
534 if (iter != serverlist.end())
544 /* Returns the locally connected server we must route a
545 * message through to reach server 'ServerName'. This
546 * only applies to one-to-one and not one-to-many routing.
547 * See the comments for the constructor of TreeServer
550 TreeServer* BestRouteTo(std::string ServerName)
552 if (ServerName.c_str() == TreeRoot->GetName())
554 TreeServer* Found = FindServer(ServerName);
557 return Found->GetRoute();
565 /* Find the first server matching a given glob mask.
566 * Theres no find-using-glob method of hash_map [awwww :-(]
567 * so instead, we iterate over the list using an iterator
568 * and match each one until we get a hit. Yes its slow,
571 TreeServer* FindServerMask(std::string ServerName)
573 for (server_hash::iterator i = serverlist.begin(); i != serverlist.end(); i++)
575 if (match(i->first.c_str(),ServerName.c_str()))
581 /* A convenient wrapper that returns true if a server exists */
582 bool IsServer(std::string ServerName)
584 return (FindServer(ServerName) != NULL);
588 class cmd_rconnect : public command_t
592 cmd_rconnect (InspIRCd* Instance, Module* Callback) : command_t(Instance, "RCONNECT", 'o', 2), Creator(Callback)
594 this->source = "m_spanningtree.so";
595 syntax = "<remote-server-mask> <servermask>";
598 void Handle (const char** parameters, int pcnt, userrec *user)
600 user->WriteServ("NOTICE %s :*** RCONNECT: Sending remote connect to \002%s\002 to connect server \002%s\002.",user->nick,parameters[0],parameters[1]);
601 /* Is this aimed at our server? */
602 if (ServerInstance->MatchText(ServerInstance->Config->ServerName,parameters[0]))
604 /* Yes, initiate the given connect */
605 ServerInstance->WriteOpers("*** Remote CONNECT from %s matching \002%s\002, connecting server \002%s\002",user->nick,parameters[0],parameters[1]);
607 para[0] = parameters[1];
608 Creator->OnPreCommand("CONNECT", para, 1, user, true);
615 /* Every SERVER connection inbound or outbound is represented by
616 * an object of type TreeSocket.
617 * TreeSockets, being inherited from InspSocket, can be tied into
618 * the core socket engine, and we cn therefore receive activity events
619 * for them, just like activex objects on speed. (yes really, that
620 * is a technical term!) Each of these which relates to a locally
621 * connected server is assocated with it, by hooking it onto a
622 * TreeSocket class using its constructor. In this way, we can
623 * maintain a list of servers, some of which are directly connected,
624 * 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 ServerInstance->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->WriteOpers("*** \2ERROR\2: Key length for encryptionkey is not 16, 24 or 32 bytes in length!");
704 ServerInstance->Log(DEBUG,"Key length not 16, 24 or 32 characters!");
708 this->Instance->WriteOpers("*** \2AES\2: Initialized %d bit encryption to server %s",keylength*8,SName.c_str());
709 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\
710 \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);
711 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\
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);
716 /* When an outbound connection finishes connecting, we receive
717 * this event, and must send our SERVER string to the other
718 * side. If the other side is happy, as outlined in the server
719 * to server docs on the inspircd.org site, the other side
720 * will then send back its own server string.
722 virtual bool OnConnected()
724 if (this->LinkState == CONNECTING)
726 /* we do not need to change state here. */
727 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
729 if (x->Name == this->myhost)
731 this->Instance->WriteOpers("*** Connection to \2"+myhost+"\2["+(x->HiddenFromStats ? "<hidden>" : this->GetIP())+"] established.");
732 this->SendCapabilities();
733 if (x->EncryptionKey != "")
735 if (!(x->EncryptionKey.length() == 16 || x->EncryptionKey.length() == 24 || x->EncryptionKey.length() == 32))
737 this->Instance->WriteOpers("\2WARNING\2: Your encryption key is NOT 16, 24 or 32 characters in length, encryption will \2NOT\2 be enabled.");
741 this->WriteLine(std::string("AES ")+this->Instance->Config->ServerName);
742 this->InitAES(x->EncryptionKey,x->Name.c_str());
745 /* found who we're supposed to be connecting to, send the neccessary gubbins. */
746 this->WriteLine(std::string("SERVER ")+this->Instance->Config->ServerName+" "+x->SendPass+" 0 :"+this->Instance->Config->ServerDesc);
751 /* There is a (remote) chance that between the /CONNECT and the connection
752 * being accepted, some muppet has removed the <link> block and rehashed.
753 * If that happens the connection hangs here until it's closed. Unlikely
754 * and rather harmless.
756 this->Instance->WriteOpers("*** Connection to \2"+myhost+"\2 lost link tag(!)");
760 virtual void OnError(InspSocketError e)
762 /* We don't handle this method, because all our
763 * dirty work is done in OnClose() (see below)
764 * which is still called on error conditions too.
766 if (e == I_ERR_CONNECT)
768 this->Instance->WriteOpers("*** Connection failed: Connection refused");
772 virtual int OnDisconnect()
774 /* For the same reason as above, we don't
775 * handle OnDisconnect()
780 /* Recursively send the server tree with distances as hops.
781 * This is used during network burst to inform the other server
782 * (and any of ITS servers too) of what servers we know about.
783 * If at any point any of these servers already exist on the other
784 * end, our connection may be terminated. The hopcounts given
785 * by this function are relative, this doesn't matter so long as
786 * they are all >1, as all the remote servers re-calculate them
787 * to be relative too, with themselves as hop 0.
789 void SendServers(TreeServer* Current, TreeServer* s, int hops)
792 for (unsigned int q = 0; q < Current->ChildCount(); q++)
794 TreeServer* recursive_server = Current->GetChild(q);
795 if (recursive_server != s)
797 snprintf(command,1024,":%s SERVER %s * %d :%s",Current->GetName().c_str(),recursive_server->GetName().c_str(),hops,recursive_server->GetDesc().c_str());
798 this->WriteLine(command);
799 this->WriteLine(":"+recursive_server->GetName()+" VERSION :"+recursive_server->GetVersion());
800 /* down to next level */
801 this->SendServers(recursive_server, s, hops+1);
806 std::string MyCapabilities()
808 std::vector<std::string> modlist;
809 std::string capabilities = "";
811 for (int i = 0; i <= this->Instance->GetModuleCount(); i++)
813 if ((this->Instance->modules[i]->GetVersion().Flags & VF_STATIC) || (this->Instance->modules[i]->GetVersion().Flags & VF_COMMON))
814 modlist.push_back(this->Instance->Config->module_names[i]);
816 sort(modlist.begin(),modlist.end());
817 for (unsigned int i = 0; i < modlist.size(); i++)
820 capabilities = capabilities + ",";
821 capabilities = capabilities + modlist[i];
826 void SendCapabilities()
828 irc::commasepstream modulelist(MyCapabilities());
830 this->WriteLine("CAPAB START");
832 /* Send module names, split at 509 length */
833 std::string item = "*";
834 std::string line = "CAPAB MODULES ";
835 while ((item = modulelist.GetToken()) != "")
837 if (line.length() + item.length() + 1 > 509)
839 this->WriteLine(line);
840 line = "CAPAB MODULES ";
843 if (line != "CAPAB MODULES ")
848 if (line != "CAPAB MODULES ")
849 this->WriteLine(line);
856 #ifdef SUPPORT_IP6LINKS
859 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));
861 this->WriteLine("CAPAB END");
864 /* Check a comma seperated list for an item */
865 bool HasItem(const std::string &list, const std::string &item)
867 irc::commasepstream seplist(list);
869 std::string item2 = "*";
870 while ((item2 = seplist.GetToken()) != "")
879 /* Isolate and return the elements that are different between two comma seperated lists */
880 std::string ListDifference(const std::string &one, const std::string &two)
882 irc::commasepstream list_one(one);
883 std::string item = "*";
884 std::string result = "";
885 while ((item = list_one.GetToken()) != "")
887 if (!HasItem(two, item))
896 bool Capab(std::deque<std::string> params)
898 if (params.size() < 1)
900 this->WriteLine("ERROR :Invalid number of parameters for CAPAB - Mismatched version");
904 if (params[0] == "START")
906 this->ModuleList = "";
907 this->CapKeys.clear();
909 else if (params[0] == "END")
911 std::string reason = "";
913 #ifdef SUPPORT_IP6LINKS
916 /* Compare ModuleList and check CapKeys...
917 * Maybe this could be tidier? -- Brain
919 if ((this->ModuleList != this->MyCapabilities()) && (this->ModuleList.length()))
921 std::string diff = ListDifference(this->ModuleList, this->MyCapabilities());
924 diff = "this server:" + ListDifference(this->MyCapabilities(), this->ModuleList);
928 diff = "your server:" + diff;
930 reason = "Modules loaded on these servers are not correctly matched, these modules are not loaded on " + diff;
933 if (((this->CapKeys.find("IP6SUPPORT") == this->CapKeys.end()) && (ip6support)) || ((this->CapKeys.find("IP6SUPPORT") != this->CapKeys.end()) && (this->CapKeys.find("IP6SUPPORT")->second != ConvToStr(ip6support))))
934 reason = "We don't both support linking to IPV6 servers";
936 if (((this->CapKeys.find("IP6NATIVE") != this->CapKeys.end()) && (this->CapKeys.find("IP6NATIVE")->second == "1")) && (!ip6support))
937 reason = "The remote server is IPV6 native, and we don't support linking to IPV6 servers";
939 if (((this->CapKeys.find("NICKMAX") == this->CapKeys.end()) || ((this->CapKeys.find("NICKMAX") != this->CapKeys.end()) && (this->CapKeys.find("NICKMAX")->second != ConvToStr(NICKMAX)))))
940 reason = "Maximum nickname lengths differ or remote nickname length not specified";
942 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))))
943 reason = "We don't both have halfop support enabled/disabled identically";
945 if (((this->CapKeys.find("IDENTMAX") == this->CapKeys.end()) || ((this->CapKeys.find("IDENTMAX") != this->CapKeys.end()) && (this->CapKeys.find("IDENTMAX")->second != ConvToStr(IDENTMAX)))))
946 reason = "Maximum ident lengths differ or remote ident length not specified";
948 if (((this->CapKeys.find("CHANMAX") == this->CapKeys.end()) || ((this->CapKeys.find("CHANMAX") != this->CapKeys.end()) && (this->CapKeys.find("CHANMAX")->second != ConvToStr(CHANMAX)))))
949 reason = "Maximum channel lengths differ or remote channel length not specified";
951 if (((this->CapKeys.find("MAXMODES") == this->CapKeys.end()) || ((this->CapKeys.find("MAXMODES") != this->CapKeys.end()) && (this->CapKeys.find("MAXMODES")->second != ConvToStr(MAXMODES)))))
952 reason = "Maximum modes per line differ or remote modes per line not specified";
954 if (((this->CapKeys.find("MAXQUIT") == this->CapKeys.end()) || ((this->CapKeys.find("MAXQUIT") != this->CapKeys.end()) && (this->CapKeys.find("MAXQUIT")->second != ConvToStr(MAXQUIT)))))
955 reason = "Maximum quit lengths differ or remote quit length not specified";
957 if (((this->CapKeys.find("MAXTOPIC") == this->CapKeys.end()) || ((this->CapKeys.find("MAXTOPIC") != this->CapKeys.end()) && (this->CapKeys.find("MAXTOPIC")->second != ConvToStr(MAXTOPIC)))))
958 reason = "Maximum topic lengths differ or remote topic length not specified";
960 if (((this->CapKeys.find("MAXKICK") == this->CapKeys.end()) || ((this->CapKeys.find("MAXKICK") != this->CapKeys.end()) && (this->CapKeys.find("MAXKICK")->second != ConvToStr(MAXKICK)))))
961 reason = "Maximum kick lengths differ or remote kick length not specified";
963 if (((this->CapKeys.find("MAXGECOS") == this->CapKeys.end()) || ((this->CapKeys.find("MAXGECOS") != this->CapKeys.end()) && (this->CapKeys.find("MAXGECOS")->second != ConvToStr(MAXGECOS)))))
964 reason = "Maximum GECOS (fullname) lengths differ or remote GECOS length not specified";
966 if (((this->CapKeys.find("MAXAWAY") == this->CapKeys.end()) || ((this->CapKeys.find("MAXAWAY") != this->CapKeys.end()) && (this->CapKeys.find("MAXAWAY")->second != ConvToStr(MAXAWAY)))))
967 reason = "Maximum awaymessage lengths differ or remote awaymessage length not specified";
971 this->WriteLine("ERROR :CAPAB negotiation failed: "+reason);
975 else if ((params[0] == "MODULES") && (params.size() == 2))
977 if (!this->ModuleList.length())
979 this->ModuleList.append(params[1]);
983 this->ModuleList.append(",");
984 this->ModuleList.append(params[1]);
987 else if ((params[0] == "CAPABILITIES") && (params.size() == 2))
989 irc::tokenstream capabs(params[1]);
990 std::string item = "*";
991 while ((item = capabs.GetToken()) != "")
993 /* Process each key/value pair */
994 std::string::size_type equals = item.rfind('=');
995 if (equals != std::string::npos)
997 std::string var = item.substr(0, equals);
998 std::string value = item.substr(equals+1, item.length());
999 this->Instance->Log(DEBUG,"Key='%s' Value='%s'",var.c_str(),value.c_str());
1000 CapKeys[var] = value;
1008 /* This function forces this server to quit, removing this server
1009 * and any users on it (and servers and users below that, etc etc).
1010 * It's very slow and pretty clunky, but luckily unless your network
1011 * is having a REAL bad hair day, this function shouldnt be called
1012 * too many times a month ;-)
1014 void SquitServer(std::string &from, TreeServer* Current)
1016 /* recursively squit the servers attached to 'Current'.
1017 * We're going backwards so we don't remove users
1018 * while we still need them ;)
1020 for (unsigned int q = 0; q < Current->ChildCount(); q++)
1022 TreeServer* recursive_server = Current->GetChild(q);
1023 this->SquitServer(from,recursive_server);
1025 /* Now we've whacked the kids, whack self */
1027 num_lost_users += Current->QuitUsers(from);
1030 /* This is a wrapper function for SquitServer above, which
1031 * does some validation first and passes on the SQUIT to all
1032 * other remaining servers.
1034 void Squit(TreeServer* Current,std::string reason)
1036 if ((Current) && (Current != TreeRoot))
1038 std::deque<std::string> params;
1039 params.push_back(Current->GetName());
1040 params.push_back(":"+reason);
1041 DoOneToAllButSender(Current->GetParent()->GetName(),"SQUIT",params,Current->GetName());
1042 if (Current->GetParent() == TreeRoot)
1044 this->Instance->WriteOpers("Server \002"+Current->GetName()+"\002 split: "+reason);
1048 this->Instance->WriteOpers("Server \002"+Current->GetName()+"\002 split from server \002"+Current->GetParent()->GetName()+"\002 with reason: "+reason);
1050 num_lost_servers = 0;
1052 std::string from = Current->GetParent()->GetName()+" "+Current->GetName();
1053 SquitServer(from, Current);
1055 Current->GetParent()->DelChild(Current);
1057 this->Instance->WriteOpers("Netsplit complete, lost \002%d\002 users on \002%d\002 servers.", num_lost_users, num_lost_servers);
1061 ServerInstance->Log(DEFAULT,"Squit from unknown server");
1065 /* FMODE command - server mode with timestamp checks */
1066 bool ForceMode(std::string source, std::deque<std::string> ¶ms)
1068 /* Chances are this is a 1.0 FMODE without TS */
1069 if (params.size() < 3)
1071 this->WriteLine("ERROR :Version 1.0 FMODE sent to version 1.1 server");
1076 std::string sourceserv;
1078 /* Are we dealing with an FMODE from a user, or from a server? */
1079 userrec* who = this->Instance->FindNick(source);
1082 /* FMODE from a user, set sourceserv to the users server name */
1083 sourceserv = who->server;
1087 /* FMODE from a server, create a fake user to receive mode feedback */
1088 who = new userrec(this->Instance);
1089 who->SetFd(FD_MAGIC_NUMBER);
1090 smode = true; /* Setting this flag tells us we should free the userrec later */
1091 sourceserv = source; /* Set sourceserv to the actual source string */
1093 const char* modelist[64];
1096 memset(&modelist,0,sizeof(modelist));
1097 for (unsigned int q = 0; (q < params.size()) && (q < 64); q++)
1101 /* The timestamp is in this position.
1102 * We don't want to pass that up to the
1103 * server->client protocol!
1105 TS = atoi(params[q].c_str());
1109 /* Everything else is fine to append to the modelist */
1110 modelist[n++] = params[q].c_str();
1114 /* Extract the TS value of the object, either userrec or chanrec */
1115 userrec* dst = this->Instance->FindNick(params[0]);
1116 chanrec* chan = NULL;
1124 chan = this->Instance->FindChan(params[0]);
1131 /* TS is equal: Merge the mode changes, use voooodoooooo on modes
1136 ServerInstance->Log(DEBUG,"Entering TS equality check");
1137 ModeHandler* mh = NULL;
1138 unsigned long paramptr = 3;
1139 std::string to_bounce = "";
1140 std::string to_keep = "";
1141 std::vector<std::string> params_to_keep;
1142 std::string params_to_bounce = "";
1144 char cur_change = 1;
1145 char old_change = 0;
1146 char old_bounce_change = 0;
1147 /* Merge modes, basically do special stuff to mode with params */
1148 for (std::string::iterator x = params[2].begin(); x != params[2].end(); x++)
1161 /* We only care about whats being set,
1162 * not whats being unset
1164 mh = this->Instance->Modes->FindMode(*x, chan ? MODETYPE_CHANNEL : MODETYPE_USER);
1166 if ((mh) && (mh->GetNumParams(adding) > 0) && (!mh->IsListMode()))
1168 /* We only want to do special things to
1169 * modes with parameters, we are going to rewrite
1173 adding ? cur_change = '+' : cur_change = '-';
1175 ret = mh->ModeSet(smode ? NULL : who, dst, chan, params[paramptr]);
1177 /* The mode is set here, check which we should keep */
1180 bool which_to_keep = mh->CheckTimeStamp(TS, ourTS, params[paramptr], ret.second, chan);
1182 if (which_to_keep == true)
1184 /* Keep ours, bounce theirs:
1185 * Send back ours to them and
1186 * drop their mode changs
1188 adding ? cur_change = '+' : cur_change = '-';
1189 if (cur_change != old_bounce_change)
1190 to_bounce += cur_change;
1192 old_bounce_change = cur_change;
1194 if ((mh->GetNumParams(adding) > 0) && (paramptr < params.size()))
1195 params_to_bounce.append(" ").append(ret.second);
1199 /* Keep theirs: Accept their mode change,
1202 adding ? cur_change = '+' : cur_change = '-';
1203 if (cur_change != old_change)
1204 to_keep += cur_change;
1206 old_change = cur_change;
1208 if ((mh->GetNumParams(adding) > 0) && (paramptr < params.size()))
1209 params_to_keep.push_back(params[paramptr]);
1214 /* Mode isnt set here, we want it */
1215 adding ? cur_change = '+' : cur_change = '-';
1216 if (cur_change != old_change)
1217 to_keep += cur_change;
1219 old_change = cur_change;
1221 if ((mh->GetNumParams(adding) > 0) && (paramptr < params.size()))
1222 params_to_keep.push_back(params[paramptr]);
1229 mh = this->Instance->Modes->FindMode(*x, chan ? MODETYPE_CHANNEL : MODETYPE_USER);
1233 adding ? cur_change = '+' : cur_change = '-';
1235 /* Just keep this, safe to merge with no checks
1236 * it has no parameters
1239 if (cur_change != old_change)
1240 to_keep += cur_change;
1242 old_change = cur_change;
1244 if ((mh->GetNumParams(adding) > 0) && (paramptr < params.size()))
1246 ServerInstance->Log(DEBUG,"Mode removal %d %d",adding, mh->GetNumParams(adding));
1247 params_to_keep.push_back(params[paramptr++]);
1254 mh = this->Instance->Modes->FindMode(*x, chan ? MODETYPE_CHANNEL : MODETYPE_USER);
1258 /* Taking a mode away */
1259 adding ? cur_change = '+' : cur_change = '-';
1261 if (cur_change != old_change)
1262 to_keep += cur_change;
1264 old_change = cur_change;
1266 if ((mh->GetNumParams(adding) > 0) && (paramptr < params.size()))
1267 params_to_keep.push_back(params[paramptr++]);
1274 if (to_bounce.length())
1276 std::deque<std::string> newparams;
1277 newparams.push_back(params[0]);
1278 newparams.push_back(ConvToStr(ourTS));
1279 newparams.push_back(to_bounce+params_to_bounce);
1280 DoOneToOne(this->Instance->Config->ServerName,"FMODE",newparams,sourceserv);
1283 if (to_keep.length())
1287 modelist[0] = params[0].c_str();
1288 modelist[1] = to_keep.c_str();
1290 if (params_to_keep.size() > 2)
1292 for (q = 2; (q < params_to_keep.size()) && (q < 64); q++)
1294 ServerInstance->Log(DEBUG,"Item %d of %d", q, params_to_keep.size());
1295 modelist[n++] = params_to_keep[q].c_str();
1301 ServerInstance->Log(DEBUG,"Send mode");
1302 this->Instance->SendMode(modelist, n+2, who);
1306 ServerInstance->Log(DEBUG,"Send mode client");
1307 this->Instance->CallCommandHandler("MODE", modelist, n+2, who);
1310 /* HOT POTATO! PASS IT ON! */
1311 DoOneToAllButSender(source,"FMODE",params,sourceserv);
1315 /* U-lined servers always win regardless of their TS */
1316 if ((TS > ourTS) && (!this->Instance->ULine(source.c_str())))
1318 /* Bounce the mode back to its sender.* We use our lower TS, so the other end
1319 * SHOULD accept it, if its clock is right.
1321 * NOTE: We should check that we arent bouncing anything thats already set at this end.
1322 * If we are, bounce +ourmode to 'reinforce' it. This prevents desyncs.
1323 * e.g. They send +l 50, we have +l 10 set. rather than bounce -l 50, we bounce +l 10.
1325 * Thanks to jilles for pointing out this one-hell-of-an-issue before i even finished
1326 * writing the code. It took me a while to come up with this solution.
1328 * XXX: BE SURE YOU UNDERSTAND THIS CODE FULLY BEFORE YOU MESS WITH IT.
1331 std::deque<std::string> newparams; /* New parameter list we send back */
1332 newparams.push_back(params[0]); /* Target, user or channel */
1333 newparams.push_back(ConvToStr(ourTS)); /* Timestamp value of the target */
1334 newparams.push_back(""); /* This contains the mode string. For now
1335 * it's empty, we fill it below.
1338 /* Intelligent mode bouncing. Don't just invert, reinforce any modes which are already
1339 * set to avoid a desync here.
1341 std::string modebounce = "";
1344 ModeHandler* mh = NULL;
1345 char cur_change = 1;
1346 char old_change = 0;
1347 for (std::string::iterator x = params[2].begin(); x != params[2].end(); x++)
1349 /* Iterate over all mode chars in the sent set */
1352 /* Adding or subtracting modes? */
1360 /* Find the mode handler for this mode */
1361 mh = this->Instance->Modes->FindMode(*x, chan ? MODETYPE_CHANNEL : MODETYPE_USER);
1363 /* Got a mode handler?
1364 * This also prevents us bouncing modes we have no handler for.
1371 /* Does the mode require a parameter right now?
1372 * If it does, fetch it if we can
1374 if ((mh->GetNumParams(adding) > 0) && (t < params.size()))
1377 /* Call the ModeSet method to determine if its set with the
1378 * given parameter here or not.
1380 ret = mh->ModeSet(smode ? NULL : who, dst, chan, p);
1382 /* XXX: Really. Dont ask.
1383 * Determine from if its set combined with what the current
1384 * 'state' is (adding or not) as to wether we should 'invert'
1385 * or 'reinforce' the mode change
1387 (!ret.first ? (adding ? cur_change = '-' : cur_change = '+') : (!adding ? cur_change = '-' : cur_change = '+'));
1389 /* Quickly determine if we have 'flipped' from + to -,
1390 * or - to +, to prevent unneccessary +/- chars in the
1391 * output string that waste bandwidth
1393 if (cur_change != old_change)
1394 modebounce += cur_change;
1395 old_change = cur_change;
1397 /* Add the mode character to the output string */
1398 modebounce += mh->GetModeChar();
1400 /* We got a parameter back from ModeHandler::ModeSet,
1401 * are we supposed to be sending one out right now?
1403 if (ret.second.length())
1405 if (mh->GetNumParams(cur_change == '+') > 0)
1406 /* Yes we're supposed to be sending out
1407 * the parameter. Make sure it goes
1409 newparams.push_back(ret.second);
1417 /* Update the parameters for FMODE with the new 'bounced' string */
1418 newparams[2] = modebounce;
1419 /* Only send it back the way it came, no need to send it anywhere else */
1420 DoOneToOne(this->Instance->Config->ServerName,"FMODE",newparams,sourceserv);
1421 ServerInstance->Log(DEBUG,"FMODE bounced intelligently, our TS less than theirs and the other server is NOT a uline.");
1425 ServerInstance->Log(DEBUG,"Allow modes, TS lower for sender");
1426 /* The server was ulined, but something iffy is up with the TS.
1427 * Sound the alarm bells!
1429 if ((this->Instance->ULine(sourceserv.c_str())) && (TS > ourTS))
1431 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());
1433 /* Allow the mode, route it to either server or user command handling */
1435 this->Instance->SendMode(modelist,n,who);
1437 this->Instance->CallCommandHandler("MODE", modelist, n, who);
1439 /* HOT POTATO! PASS IT ON! */
1440 DoOneToAllButSender(source,"FMODE",params,sourceserv);
1442 /* Are we supposed to free the userrec? */
1449 /* FTOPIC command */
1450 bool ForceTopic(std::string source, std::deque<std::string> ¶ms)
1452 if (params.size() != 4)
1454 time_t ts = atoi(params[1].c_str());
1455 std::string nsource = source;
1457 chanrec* c = this->Instance->FindChan(params[0]);
1460 if ((ts >= c->topicset) || (!*c->topic))
1462 std::string oldtopic = c->topic;
1463 strlcpy(c->topic,params[3].c_str(),MAXTOPIC);
1464 strlcpy(c->setby,params[2].c_str(),NICKMAX-1);
1466 /* if the topic text is the same as the current topic,
1467 * dont bother to send the TOPIC command out, just silently
1468 * update the set time and set nick.
1470 if (oldtopic != params[3])
1472 userrec* user = this->Instance->FindNick(source);
1475 c->WriteChannelWithServ(source.c_str(), "TOPIC %s :%s", c->name, c->topic);
1479 c->WriteChannel(user, "TOPIC %s :%s", c->name, c->topic);
1480 nsource = user->server;
1482 /* all done, send it on its way */
1483 params[3] = ":" + params[3];
1484 DoOneToAllButSender(source,"FTOPIC",params,nsource);
1493 /* FJOIN, similar to unreal SJOIN */
1494 bool ForceJoin(std::string source, std::deque<std::string> ¶ms)
1496 if (params.size() < 3)
1500 char modestring[MAXBUF];
1501 char* mode_users[127];
1502 memset(&mode_users,0,sizeof(mode_users));
1503 mode_users[0] = first;
1504 mode_users[1] = modestring;
1505 strcpy(modestring,"+");
1506 unsigned int modectr = 2;
1508 userrec* who = NULL;
1509 std::string channel = params[0];
1510 time_t TS = atoi(params[1].c_str());
1513 chanrec* chan = this->Instance->FindChan(channel);
1518 strlcpy(mode_users[0],channel.c_str(),MAXBUF);
1520 /* default is a high value, which if we dont have this
1521 * channel will let the other side apply their modes.
1523 time_t ourTS = time(NULL)+600;
1524 chanrec* us = this->Instance->FindChan(channel);
1530 ServerInstance->Log(DEBUG,"FJOIN detected, our TS=%lu, their TS=%lu",ourTS,TS);
1532 irc::tokenstream users(params[2]);
1533 std::string item = "*";
1535 /* do this first, so our mode reversals are correctly received by other servers
1536 * if there is a TS collision.
1538 params[2] = ":" + params[2];
1539 DoOneToAllButSender(source,"FJOIN",params,source);
1542 item = users.GetToken();
1543 /* process one user at a time, applying modes. */
1544 char* usr = (char*)item.c_str();
1545 /* Safety check just to make sure someones not sent us an FJOIN full of spaces
1546 * (is this even possible?) */
1549 char* permissions = usr;
1551 while ((*permissions) && (*permissions != ','))
1553 ModeHandler* mh = ServerInstance->Modes->FindPrefix(*permissions);
1557 charlcat(modestring,mh->GetModeChar(),MAXBUF);
1561 this->Instance->WriteOpers("ERROR: We received a user with an unknown prefix '%c'. Closed connection to avoid a desync.",mh->GetPrefix());
1562 this->WriteLine(std::string("ERROR :Invalid prefix '")+mh->GetModeChar()+"' in FJOIN");
1570 /* Did they get any modes? How many times? */
1571 for (int k = 0; k < ntimes; k++)
1572 mode_users[modectr++] = strdup(usr); // XXX
1574 who = this->Instance->FindNick(usr);
1577 chanrec::JoinUser(this->Instance, who, channel.c_str(), true, key);
1578 if (modectr >= (MAXMODES-1))
1580 /* theres a mode for this user. push them onto the mode queue, and flush it
1581 * if there are more than MAXMODES to go.
1583 if ((ourTS >= TS) || (this->Instance->ULine(who->server)))
1585 /* We also always let u-lined clients win, no matter what the TS value */
1586 ServerInstance->Log(DEBUG,"Our our channel newer than theirs, accepting their modes");
1587 this->Instance->SendMode((const char**)mode_users,modectr,who);
1590 ServerInstance->Log(DEFAULT,"Channel TS for %s changed from %lu to %lu",us->name,ourTS,TS);
1597 ServerInstance->Log(DEBUG,"Their channel newer than ours, bouncing their modes");
1598 /* bouncy bouncy! */
1599 std::deque<std::string> params;
1600 /* modes are now being UNSET... */
1601 *mode_users[1] = '-';
1602 for (unsigned int x = 0; x < modectr; x++)
1606 params.push_back(ConvToStr(us->age));
1608 params.push_back(mode_users[x]);
1611 // tell everyone to bounce the modes. bad modes, bad!
1612 DoOneToMany(this->Instance->Config->ServerName,"FMODE",params);
1614 strcpy(mode_users[1],"+");
1615 for (unsigned int f = 2; f < modectr; f++)
1616 free(mode_users[f]);
1622 for (unsigned int f = 2; f < modectr; f++)
1623 free(mode_users[f]);
1625 this->WriteLine("ERROR :Invalid user '"+std::string(usr)+"' in FJOIN to '"+channel+"'");
1630 /* there werent enough modes built up to flush it during FJOIN,
1631 * or, there are a number left over. flush them out.
1633 if ((modectr > 2) && (who) && (us))
1637 ServerInstance->Log(DEBUG,"Our our channel newer than theirs, accepting their modes");
1638 this->Instance->SendMode((const char**)mode_users,modectr,who);
1641 ServerInstance->Log(DEFAULT,"Channel TS for %s changed from %lu to %lu",us->name,ourTS,TS);
1648 ServerInstance->Log(DEBUG,"Their channel newer than ours, bouncing their modes");
1649 std::deque<std::string> params;
1650 *mode_users[1] = '-';
1651 for (unsigned int x = 0; x < modectr; x++)
1655 params.push_back(ConvToStr(us->age));
1657 params.push_back(mode_users[x]);
1659 DoOneToMany(this->Instance->Config->ServerName,"FMODE",params);
1662 for (unsigned int f = 2; f < modectr; f++)
1663 free(mode_users[f]);
1668 bool SyncChannelTS(std::string source, std::deque<std::string> ¶ms)
1670 if (params.size() >= 2)
1672 chanrec* c = this->Instance->FindChan(params[0]);
1675 time_t theirTS = atoi(params[1].c_str());
1676 time_t ourTS = c->age;
1677 if (ourTS >= theirTS)
1679 ServerInstance->Log(DEBUG,"Updating timestamp for %s, our timestamp was %lu and theirs is %lu",c->name,ourTS,theirTS);
1684 DoOneToAllButSender(this->Instance->Config->ServerName,"SYNCTS",params,source);
1689 bool IntroduceClient(std::string source, std::deque<std::string> ¶ms)
1691 if (params.size() < 8)
1693 if (params.size() > 8)
1695 this->WriteLine(std::string(":")+this->Instance->Config->ServerName+" KILL "+params[1]+" :Invalid client introduction ("+params[1]+"?)");
1698 // NICK age nick host dhost ident +modes ip :gecos
1700 time_t age = atoi(params[0].c_str());
1702 /* This used to have a pretty craq'y loop doing the same thing,
1703 * now we just let the STL do the hard work (more efficiently)
1705 params[5] = params[5].substr(params[5].find_first_not_of('+'));
1707 const char* tempnick = params[1].c_str();
1708 ServerInstance->Log(DEBUG,"Introduce client %s!%s@%s",tempnick,params[4].c_str(),params[2].c_str());
1710 user_hash::iterator iter = this->Instance->clientlist.find(tempnick);
1712 if (iter != this->Instance->clientlist.end())
1715 ServerInstance->Log(DEBUG,"Nick collision on %s!%s@%s: %lu %lu",tempnick,params[4].c_str(),params[2].c_str(),(unsigned long)age,(unsigned long)iter->second->age);
1716 this->WriteLine(std::string(":")+this->Instance->Config->ServerName+" KILL "+tempnick+" :Nickname collision");
1720 userrec* _new = new userrec(this->Instance);
1721 this->Instance->clientlist[tempnick] = _new;
1722 _new->SetFd(FD_MAGIC_NUMBER);
1723 strlcpy(_new->nick, tempnick,NICKMAX-1);
1724 strlcpy(_new->host, params[2].c_str(),63);
1725 strlcpy(_new->dhost, params[3].c_str(),63);
1726 _new->server = this->Instance->FindServerNamePtr(source.c_str());
1727 strlcpy(_new->ident, params[4].c_str(),IDENTMAX);
1728 strlcpy(_new->fullname, params[7].c_str(),MAXGECOS);
1729 _new->registered = REG_ALL;
1732 for (std::string::iterator v = params[5].begin(); v != params[5].end(); v++)
1733 _new->modes[(*v)-65] = 1;
1735 if (params[6].find_first_of(":") != std::string::npos)
1736 _new->SetSockAddr(AF_INET6, params[6].c_str(), 0);
1738 _new->SetSockAddr(AF_INET, params[6].c_str(), 0);
1740 this->Instance->WriteOpers("*** Client connecting at %s: %s!%s@%s [%s]",_new->server,_new->nick,_new->ident,_new->host, _new->GetIPString());
1742 params[7] = ":" + params[7];
1743 DoOneToAllButSender(source,"NICK",params,source);
1745 // Increment the Source Servers User Count..
1746 TreeServer* SourceServer = FindServer(source);
1749 ServerInstance->Log(DEBUG,"Found source server of %s",_new->nick);
1750 SourceServer->AddUserCount();
1756 /* Send one or more FJOINs for a channel of users.
1757 * If the length of a single line is more than 480-NICKMAX
1758 * in length, it is split over multiple lines.
1760 void SendFJoins(TreeServer* Current, chanrec* c)
1762 ServerInstance->Log(DEBUG,"Sending FJOINs to other server for %s",c->name);
1764 std::string individual_halfops = std::string(":")+this->Instance->Config->ServerName+" FMODE "+c->name+" "+ConvToStr(c->age);
1766 size_t dlen, curlen;
1767 dlen = curlen = snprintf(list,MAXBUF,":%s FJOIN %s %lu",this->Instance->Config->ServerName,c->name,(unsigned long)c->age);
1769 char* ptr = list + dlen;
1771 CUList *ulist = c->GetUsers();
1772 std::vector<userrec*> specific_halfop;
1773 std::vector<userrec*> specific_voice;
1774 std::string modes = "";
1775 std::string params = "";
1777 for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
1779 // The first parameter gets a : before it
1780 size_t ptrlen = snprintf(ptr, MAXBUF, " %s%s,%s", !numusers ? ":" : "", c->GetAllPrefixChars(i->second), i->second->nick);
1787 if (curlen > (480-NICKMAX))
1789 this->WriteLine(list);
1790 dlen = curlen = snprintf(list,MAXBUF,":%s FJOIN %s %lu",this->Instance->Config->ServerName,c->name,(unsigned long)c->age);
1798 this->WriteLine(list);
1800 for (BanList::iterator b = c->bans.begin(); b != c->bans.end(); b++)
1803 params.append(b->data).append(" ");
1805 this->WriteLine(std::string(":")+this->Instance->Config->ServerName+" FMODE "+c->name+" "+ConvToStr(c->age)+" +"+c->ChanModes(true)+modes+" "+params);
1808 /* Send G, Q, Z and E lines */
1809 void SendXLines(TreeServer* Current)
1812 std::string n = this->Instance->Config->ServerName;
1813 const char* sn = n.c_str();
1815 /* Yes, these arent too nice looking, but they get the job done */
1816 for (std::vector<ZLine>::iterator i = Instance->XLines->zlines.begin(); i != Instance->XLines->zlines.end(); i++, iterations++)
1818 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);
1819 this->WriteLine(data);
1821 for (std::vector<QLine>::iterator i = Instance->XLines->qlines.begin(); i != Instance->XLines->qlines.end(); i++, iterations++)
1823 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);
1824 this->WriteLine(data);
1826 for (std::vector<GLine>::iterator i = Instance->XLines->glines.begin(); i != Instance->XLines->glines.end(); i++, iterations++)
1828 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);
1829 this->WriteLine(data);
1831 for (std::vector<ELine>::iterator i = Instance->XLines->elines.begin(); i != Instance->XLines->elines.end(); i++, iterations++)
1833 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);
1834 this->WriteLine(data);
1836 for (std::vector<ZLine>::iterator i = Instance->XLines->pzlines.begin(); i != Instance->XLines->pzlines.end(); i++, iterations++)
1838 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);
1839 this->WriteLine(data);
1841 for (std::vector<QLine>::iterator i = Instance->XLines->pqlines.begin(); i != Instance->XLines->pqlines.end(); i++, iterations++)
1843 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);
1844 this->WriteLine(data);
1846 for (std::vector<GLine>::iterator i = Instance->XLines->pglines.begin(); i != Instance->XLines->pglines.end(); i++, iterations++)
1848 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);
1849 this->WriteLine(data);
1851 for (std::vector<ELine>::iterator i = Instance->XLines->pelines.begin(); i != Instance->XLines->pelines.end(); i++, iterations++)
1853 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);
1854 this->WriteLine(data);
1858 /* Send channel modes and topics */
1859 void SendChannelModes(TreeServer* Current)
1862 std::deque<std::string> list;
1864 std::string n = this->Instance->Config->ServerName;
1865 const char* sn = n.c_str();
1866 for (chan_hash::iterator c = this->Instance->chanlist.begin(); c != this->Instance->chanlist.end(); c++, iterations++)
1868 SendFJoins(Current, c->second);
1869 if (*c->second->topic)
1871 snprintf(data,MAXBUF,":%s FTOPIC %s %lu %s :%s",sn,c->second->name,(unsigned long)c->second->topicset,c->second->setby,c->second->topic);
1872 this->WriteLine(data);
1874 FOREACH_MOD_I(this->Instance,I_OnSyncChannel,OnSyncChannel(c->second,(Module*)TreeProtocolModule,(void*)this));
1876 c->second->GetExtList(list);
1877 for (unsigned int j = 0; j < list.size(); j++)
1879 FOREACH_MOD_I(this->Instance,I_OnSyncChannelMetaData,OnSyncChannelMetaData(c->second,(Module*)TreeProtocolModule,(void*)this,list[j]));
1884 /* send all users and their oper state/modes */
1885 void SendUsers(TreeServer* Current)
1888 std::deque<std::string> list;
1890 for (user_hash::iterator u = this->Instance->clientlist.begin(); u != this->Instance->clientlist.end(); u++, iterations++)
1892 if (u->second->registered == REG_ALL)
1894 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);
1895 this->WriteLine(data);
1896 if (*u->second->oper)
1898 this->WriteLine(":"+std::string(u->second->nick)+" OPERTYPE "+std::string(u->second->oper));
1900 if (*u->second->awaymsg)
1902 this->WriteLine(":"+std::string(u->second->nick)+" AWAY :"+std::string(u->second->awaymsg));
1904 FOREACH_MOD_I(this->Instance,I_OnSyncUser,OnSyncUser(u->second,(Module*)TreeProtocolModule,(void*)this));
1906 u->second->GetExtList(list);
1907 for (unsigned int j = 0; j < list.size(); j++)
1909 FOREACH_MOD_I(this->Instance,I_OnSyncUserMetaData,OnSyncUserMetaData(u->second,(Module*)TreeProtocolModule,(void*)this,list[j]));
1915 /* This function is called when we want to send a netburst to a local
1916 * server. There is a set order we must do this, because for example
1917 * users require their servers to exist, and channels require their
1918 * users to exist. You get the idea.
1920 void DoBurst(TreeServer* s)
1922 std::string burst = "BURST "+ConvToStr(time(NULL));
1923 std::string endburst = "ENDBURST";
1924 // Because by the end of the netburst, it could be gone!
1925 std::string name = s->GetName();
1926 this->Instance->WriteOpers("*** Bursting to \2"+name+"\2.");
1927 this->WriteLine(burst);
1928 /* send our version string */
1929 this->WriteLine(std::string(":")+this->Instance->Config->ServerName+" VERSION :"+this->Instance->GetVersionString());
1930 /* Send server tree */
1931 this->SendServers(TreeRoot,s,1);
1932 /* Send users and their oper status */
1934 /* Send everything else (channel modes, xlines etc) */
1935 this->SendChannelModes(s);
1936 this->SendXLines(s);
1937 FOREACH_MOD_I(this->Instance,I_OnSyncOtherMetaData,OnSyncOtherMetaData((Module*)TreeProtocolModule,(void*)this));
1938 this->WriteLine(endburst);
1939 this->Instance->WriteOpers("*** Finished bursting to \2"+name+"\2.");
1942 /* This function is called when we receive data from a remote
1943 * server. We buffer the data in a std::string (it doesnt stay
1944 * there for long), reading using InspSocket::Read() which can
1945 * read up to 16 kilobytes in one operation.
1947 * IF THIS FUNCTION RETURNS FALSE, THE CORE CLOSES AND DELETES
1948 * THE SOCKET OBJECT FOR US.
1950 virtual bool OnDataReady()
1952 char* data = this->Read();
1953 /* Check that the data read is a valid pointer and it has some content */
1956 this->in_buffer.append(data);
1957 /* While there is at least one new line in the buffer,
1958 * do something useful (we hope!) with it.
1960 while (in_buffer.find("\n") != std::string::npos)
1962 std::string ret = in_buffer.substr(0,in_buffer.find("\n")-1);
1963 in_buffer = in_buffer.substr(in_buffer.find("\n")+1,in_buffer.length()-in_buffer.find("\n"));
1964 if (ret.find("\r") != std::string::npos)
1965 ret = in_buffer.substr(0,in_buffer.find("\r")-1);
1966 /* Process this one, abort if it
1967 * didnt return true.
1973 memset(result,0,1024);
1975 ServerInstance->Log(DEBUG,"Original string '%s'",ret.c_str());
1976 /* ERROR + CAPAB is still allowed unencryped */
1977 if ((ret.substr(0,7) != "ERROR :") && (ret.substr(0,6) != "CAPAB "))
1979 int nbytes = from64tobits(out, ret.c_str(), 1024);
1980 if ((nbytes > 0) && (nbytes < 1024))
1982 ServerInstance->Log(DEBUG,"m_spanningtree: decrypt %d bytes",nbytes);
1983 ctx_in->Decrypt(out, result, nbytes, 0);
1984 for (int t = 0; t < nbytes; t++)
1985 if (result[t] == '\7') result[t] = 0;
1990 if (!this->ProcessLine(ret))
1992 ServerInstance->Log(DEBUG,"ProcessLine says no!");
1998 /* EAGAIN returns an empty but non-NULL string, so this
1999 * evaluates to TRUE for EAGAIN but to FALSE for EOF.
2001 return (data && !*data);
2004 int WriteLine(std::string line)
2006 ServerInstance->Log(DEBUG,"OUT: %s",line.c_str());
2010 char result64[10240];
2011 if (this->keylength)
2013 // pad it to the key length
2014 int n = this->keylength - (line.length() % this->keylength);
2017 ServerInstance->Log(DEBUG,"Append %d chars to line to make it %d long from %d, key length %d",n,n+line.length(),line.length(),this->keylength);
2018 line.append(n,'\7');
2021 unsigned int ll = line.length();
2022 ctx_out->Encrypt(line.c_str(), result, ll, 0);
2023 to64frombits((unsigned char*)result64,(unsigned char*)result,ll);
2025 //int from64tobits(char *out, const char *in, int maxlen);
2027 return this->Write(line + "\r\n");
2030 /* Handle ERROR command */
2031 bool Error(std::deque<std::string> ¶ms)
2033 if (params.size() < 1)
2035 this->Instance->WriteOpers("*** ERROR from %s: %s",(InboundServerName != "" ? InboundServerName.c_str() : myhost.c_str()),params[0].c_str());
2036 /* we will return false to cause the socket to close. */
2040 bool Stats(std::string prefix, std::deque<std::string> ¶ms)
2042 /* Get the reply to a STATS query if it matches this servername,
2043 * and send it back as a load of PUSH queries
2045 if (params.size() > 1)
2047 if (this->Instance->MatchText(this->Instance->Config->ServerName, params[1]))
2049 /* It's for our server */
2050 string_list results;
2051 userrec* source = this->Instance->FindNick(prefix);
2054 std::deque<std::string> par;
2055 par.push_back(prefix);
2057 DoStats(this->Instance, *(params[0].c_str()), source, results);
2058 for (size_t i = 0; i < results.size(); i++)
2060 par[1] = "::" + results[i];
2061 DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
2068 userrec* source = this->Instance->FindNick(prefix);
2070 DoOneToOne(prefix, "STATS", params, params[1]);
2077 /* Because the core won't let users or even SERVERS set +o,
2078 * we use the OPERTYPE command to do this.
2080 bool OperType(std::string prefix, std::deque<std::string> ¶ms)
2082 if (params.size() != 1)
2084 ServerInstance->Log(DEBUG,"Received invalid oper type from %s",prefix.c_str());
2087 std::string opertype = params[0];
2088 userrec* u = this->Instance->FindNick(prefix);
2091 u->modes[UM_OPERATOR] = 1;
2092 strlcpy(u->oper,opertype.c_str(),NICKMAX-1);
2093 DoOneToAllButSender(u->nick,"OPERTYPE",params,u->server);
2098 /* Because Andy insists that services-compatible servers must
2099 * implement SVSNICK and SVSJOIN, that's exactly what we do :p
2101 bool ForceNick(std::string prefix, std::deque<std::string> ¶ms)
2103 if (params.size() < 3)
2106 userrec* u = this->Instance->FindNick(params[0]);
2110 DoOneToAllButSender(prefix,"SVSNICK",params,prefix);
2113 std::deque<std::string> par;
2114 par.push_back(params[1]);
2115 /* This is not required as one is sent in OnUserPostNick below
2117 //DoOneToMany(u->nick,"NICK",par);
2118 if (!u->ForceNickChange(params[1].c_str()))
2120 userrec::QuitUser(this->Instance, u, "Nickname collision");
2123 u->age = atoi(params[2].c_str());
2129 bool ServiceJoin(std::string prefix, std::deque<std::string> ¶ms)
2131 if (params.size() < 2)
2134 userrec* u = this->Instance->FindNick(params[0]);
2138 chanrec::JoinUser(this->Instance, u, params[1].c_str(), false);
2139 DoOneToAllButSender(prefix,"SVSJOIN",params,prefix);
2144 bool RemoteRehash(std::string prefix, std::deque<std::string> ¶ms)
2146 if (params.size() < 1)
2149 std::string servermask = params[0];
2151 if (this->Instance->MatchText(this->Instance->Config->ServerName,servermask))
2153 this->Instance->WriteOpers("*** Remote rehash initiated from server \002"+prefix+"\002.");
2154 this->Instance->RehashServer();
2155 ReadConfiguration(false);
2157 DoOneToAllButSender(prefix,"REHASH",params,prefix);
2161 bool RemoteKill(std::string prefix, std::deque<std::string> ¶ms)
2163 if (params.size() != 2)
2166 std::string nick = params[0];
2167 userrec* u = this->Instance->FindNick(prefix);
2168 userrec* who = this->Instance->FindNick(nick);
2172 /* Prepend kill source, if we don't have one */
2173 std::string sourceserv = prefix;
2176 sourceserv = u->server;
2178 if (*(params[1].c_str()) != '[')
2180 params[1] = "[" + sourceserv + "] Killed (" + params[1] +")";
2182 std::string reason = params[1];
2183 params[1] = ":" + params[1];
2184 DoOneToAllButSender(prefix,"KILL",params,sourceserv);
2185 who->Write(":%s KILL %s :%s (%s)", sourceserv.c_str(), who->nick, sourceserv.c_str(), reason.c_str());
2186 userrec::QuitUser(this->Instance,who,reason);
2191 bool LocalPong(std::string prefix, std::deque<std::string> ¶ms)
2193 if (params.size() < 1)
2196 if (params.size() == 1)
2198 TreeServer* ServerSource = FindServer(prefix);
2201 ServerSource->SetPingFlag();
2206 std::string forwardto = params[1];
2207 if (forwardto == this->Instance->Config->ServerName)
2210 * this is a PONG for us
2211 * if the prefix is a user, check theyre local, and if they are,
2212 * dump the PONG reply back to their fd. If its a server, do nowt.
2213 * Services might want to send these s->s, but we dont need to yet.
2215 userrec* u = this->Instance->FindNick(prefix);
2219 u->WriteServ("PONG %s %s",params[0].c_str(),params[1].c_str());
2224 // not for us, pass it on :)
2225 DoOneToOne(prefix,"PONG",params,forwardto);
2232 bool MetaData(std::string prefix, std::deque<std::string> ¶ms)
2234 if (params.size() < 3)
2237 TreeServer* ServerSource = FindServer(prefix);
2241 if (params[0] == "*")
2243 FOREACH_MOD_I(this->Instance,I_OnDecodeMetaData,OnDecodeMetaData(TYPE_OTHER,NULL,params[1],params[2]));
2245 else if (*(params[0].c_str()) == '#')
2247 chanrec* c = this->Instance->FindChan(params[0]);
2250 FOREACH_MOD_I(this->Instance,I_OnDecodeMetaData,OnDecodeMetaData(TYPE_CHANNEL,c,params[1],params[2]));
2253 else if (*(params[0].c_str()) != '#')
2255 userrec* u = this->Instance->FindNick(params[0]);
2258 FOREACH_MOD_I(this->Instance,I_OnDecodeMetaData,OnDecodeMetaData(TYPE_USER,u,params[1],params[2]));
2263 params[2] = ":" + params[2];
2264 DoOneToAllButSender(prefix,"METADATA",params,prefix);
2268 bool ServerVersion(std::string prefix, std::deque<std::string> ¶ms)
2270 if (params.size() < 1)
2273 TreeServer* ServerSource = FindServer(prefix);
2277 ServerSource->SetVersion(params[0]);
2279 params[0] = ":" + params[0];
2280 DoOneToAllButSender(prefix,"VERSION",params,prefix);
2284 bool ChangeHost(std::string prefix, std::deque<std::string> ¶ms)
2286 if (params.size() < 1)
2289 userrec* u = this->Instance->FindNick(prefix);
2293 u->ChangeDisplayedHost(params[0].c_str());
2294 DoOneToAllButSender(prefix,"FHOST",params,u->server);
2299 bool AddLine(std::string prefix, std::deque<std::string> ¶ms)
2301 if (params.size() < 6)
2304 bool propogate = false;
2306 switch (*(params[0].c_str()))
2309 propogate = ServerInstance->XLines->add_zline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
2310 ServerInstance->XLines->zline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
2313 propogate = ServerInstance->XLines->add_qline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
2314 ServerInstance->XLines->qline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
2317 propogate = ServerInstance->XLines->add_eline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
2318 ServerInstance->XLines->eline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
2321 propogate = ServerInstance->XLines->add_gline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
2322 ServerInstance->XLines->gline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
2325 propogate = ServerInstance->XLines->add_kline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
2328 /* Just in case... */
2329 this->Instance->WriteOpers("*** \2WARNING\2: Invalid xline type '"+params[0]+"' sent by server "+prefix+", ignored!");
2334 /* Send it on its way */
2337 if (atoi(params[4].c_str()))
2339 this->Instance->WriteOpers("*** %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());
2343 this->Instance->WriteOpers("*** %s Added permenant %cLINE on %s (%s).",prefix.c_str(),*(params[0].c_str()),params[1].c_str(),params[5].c_str());
2345 params[5] = ":" + params[5];
2346 DoOneToAllButSender(prefix,"ADDLINE",params,prefix);
2348 if (!this->bursting)
2350 ServerInstance->Log(DEBUG,"Applying lines...");
2351 ServerInstance->XLines->apply_lines(APPLY_ZLINES|APPLY_GLINES|APPLY_QLINES);
2356 bool ChangeName(std::string prefix, std::deque<std::string> ¶ms)
2358 if (params.size() < 1)
2361 userrec* u = this->Instance->FindNick(prefix);
2365 u->ChangeName(params[0].c_str());
2366 params[0] = ":" + params[0];
2367 DoOneToAllButSender(prefix,"FNAME",params,u->server);
2372 bool Whois(std::string prefix, std::deque<std::string> ¶ms)
2374 if (params.size() < 1)
2377 ServerInstance->Log(DEBUG,"In IDLE command");
2378 userrec* u = this->Instance->FindNick(prefix);
2382 ServerInstance->Log(DEBUG,"USER EXISTS: %s",u->nick);
2383 // an incoming request
2384 if (params.size() == 1)
2386 userrec* x = this->Instance->FindNick(params[0]);
2387 if ((x) && (IS_LOCAL(x)))
2389 userrec* x = this->Instance->FindNick(params[0]);
2390 ServerInstance->Log(DEBUG,"Got IDLE");
2391 char signon[MAXBUF];
2393 ServerInstance->Log(DEBUG,"Sending back IDLE 3");
2394 snprintf(signon,MAXBUF,"%lu",(unsigned long)x->signon);
2395 snprintf(idle,MAXBUF,"%lu",(unsigned long)abs((x->idle_lastmsg)-time(NULL)));
2396 std::deque<std::string> par;
2397 par.push_back(prefix);
2398 par.push_back(signon);
2399 par.push_back(idle);
2400 // ours, we're done, pass it BACK
2401 DoOneToOne(params[0],"IDLE",par,u->server);
2405 // not ours pass it on
2406 DoOneToOne(prefix,"IDLE",params,x->server);
2409 else if (params.size() == 3)
2411 std::string who_did_the_whois = params[0];
2412 userrec* who_to_send_to = this->Instance->FindNick(who_did_the_whois);
2413 if ((who_to_send_to) && (IS_LOCAL(who_to_send_to)))
2415 ServerInstance->Log(DEBUG,"Got final IDLE");
2416 // an incoming reply to a whois we sent out
2417 std::string nick_whoised = prefix;
2418 unsigned long signon = atoi(params[1].c_str());
2419 unsigned long idle = atoi(params[2].c_str());
2420 if ((who_to_send_to) && (IS_LOCAL(who_to_send_to)))
2421 do_whois(this->Instance,who_to_send_to,u,signon,idle,nick_whoised.c_str());
2425 // not ours, pass it on
2426 DoOneToOne(prefix,"IDLE",params,who_to_send_to->server);
2433 bool Push(std::string prefix, std::deque<std::string> ¶ms)
2435 if (params.size() < 2)
2438 userrec* u = this->Instance->FindNick(params[0]);
2445 u->Write(params[1]);
2449 // continue the raw onwards
2450 params[1] = ":" + params[1];
2451 DoOneToOne(prefix,"PUSH",params,u->server);
2456 bool Time(std::string prefix, std::deque<std::string> ¶ms)
2458 // :source.server TIME remote.server sendernick
2459 // :remote.server TIME source.server sendernick TS
2460 if (params.size() == 2)
2462 // someone querying our time?
2463 if (this->Instance->Config->ServerName == params[0])
2465 userrec* u = this->Instance->FindNick(params[1]);
2469 snprintf(curtime,256,"%lu",(unsigned long)time(NULL));
2470 params.push_back(curtime);
2472 DoOneToOne(this->Instance->Config->ServerName,"TIME",params,params[0]);
2477 // not us, pass it on
2478 userrec* u = this->Instance->FindNick(params[1]);
2480 DoOneToOne(prefix,"TIME",params,params[0]);
2483 else if (params.size() == 3)
2485 // a response to a previous TIME
2486 userrec* u = this->Instance->FindNick(params[1]);
2487 if ((u) && (IS_LOCAL(u)))
2489 time_t rawtime = atol(params[2].c_str());
2490 struct tm * timeinfo;
2491 timeinfo = localtime(&rawtime);
2493 snprintf(tms,26,"%s",asctime(timeinfo));
2495 u->WriteServ("391 %s %s :%s",u->nick,prefix.c_str(),tms);
2500 DoOneToOne(prefix,"TIME",params,u->server);
2506 bool LocalPing(std::string prefix, std::deque<std::string> ¶ms)
2508 if (params.size() < 1)
2511 if (params.size() == 1)
2513 std::string stufftobounce = params[0];
2514 this->WriteLine(std::string(":")+this->Instance->Config->ServerName+" PONG "+stufftobounce);
2519 std::string forwardto = params[1];
2520 if (forwardto == this->Instance->Config->ServerName)
2522 // this is a ping for us, send back PONG to the requesting server
2523 params[1] = params[0];
2524 params[0] = forwardto;
2525 DoOneToOne(forwardto,"PONG",params,params[1]);
2529 // not for us, pass it on :)
2530 DoOneToOne(prefix,"PING",params,forwardto);
2536 bool RemoteServer(std::string prefix, std::deque<std::string> ¶ms)
2538 if (params.size() < 4)
2541 std::string servername = params[0];
2542 std::string password = params[1];
2543 // hopcount is not used for a remote server, we calculate this ourselves
2544 std::string description = params[3];
2545 TreeServer* ParentOfThis = FindServer(prefix);
2549 this->WriteLine("ERROR :Protocol error - Introduced remote server from unknown server "+prefix);
2552 TreeServer* CheckDupe = FindServer(servername);
2555 this->WriteLine("ERROR :Server "+servername+" already exists!");
2556 this->Instance->WriteOpers("*** Server connection from \2"+servername+"\2 denied, already exists");
2559 TreeServer* Node = new TreeServer(this->Instance,servername,description,ParentOfThis,NULL);
2560 ParentOfThis->AddChild(Node);
2561 params[3] = ":" + params[3];
2562 DoOneToAllButSender(prefix,"SERVER",params,prefix);
2563 this->Instance->WriteOpers("*** Server \002"+prefix+"\002 introduced server \002"+servername+"\002 ("+description+")");
2567 bool Outbound_Reply_Server(std::deque<std::string> ¶ms)
2569 if (params.size() < 4)
2572 irc::string servername = params[0].c_str();
2573 std::string sname = params[0];
2574 std::string password = params[1];
2575 int hops = atoi(params[2].c_str());
2579 this->WriteLine("ERROR :Server too far away for authentication");
2580 this->Instance->WriteOpers("*** Server connection from \2"+sname+"\2 denied, server is too far away for authentication");
2583 std::string description = params[3];
2584 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
2586 if ((x->Name == servername) && (x->RecvPass == password))
2588 TreeServer* CheckDupe = FindServer(sname);
2591 this->WriteLine("ERROR :Server "+sname+" already exists on server "+CheckDupe->GetParent()->GetName()+"!");
2592 this->Instance->WriteOpers("*** Server connection from \2"+sname+"\2 denied, already exists on server "+CheckDupe->GetParent()->GetName());
2595 // Begin the sync here. this kickstarts the
2596 // other side, waiting in WAIT_AUTH_2 state,
2597 // into starting their burst, as it shows
2598 // that we're happy.
2599 this->LinkState = CONNECTED;
2600 // we should add the details of this server now
2601 // to the servers tree, as a child of the root
2603 TreeServer* Node = new TreeServer(this->Instance,sname,description,TreeRoot,this);
2604 TreeRoot->AddChild(Node);
2605 params[3] = ":" + params[3];
2606 DoOneToAllButSender(TreeRoot->GetName(),"SERVER",params,sname);
2607 this->bursting = true;
2608 this->DoBurst(Node);
2612 this->WriteLine("ERROR :Invalid credentials");
2613 this->Instance->WriteOpers("*** Server connection from \2"+sname+"\2 denied, invalid link credentials");
2617 bool Inbound_Server(std::deque<std::string> ¶ms)
2619 if (params.size() < 4)
2622 irc::string servername = params[0].c_str();
2623 std::string sname = params[0];
2624 std::string password = params[1];
2625 int hops = atoi(params[2].c_str());
2629 this->WriteLine("ERROR :Server too far away for authentication");
2630 this->Instance->WriteOpers("*** Server connection from \2"+sname+"\2 denied, server is too far away for authentication");
2633 std::string description = params[3];
2634 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
2636 if ((x->Name == servername) && (x->RecvPass == password))
2638 TreeServer* CheckDupe = FindServer(sname);
2641 this->WriteLine("ERROR :Server "+sname+" already exists on server "+CheckDupe->GetParent()->GetName()+"!");
2642 this->Instance->WriteOpers("*** Server connection from \2"+sname+"\2 denied, already exists on server "+CheckDupe->GetParent()->GetName());
2645 /* If the config says this link is encrypted, but the remote side
2646 * hasnt bothered to send the AES command before SERVER, then we
2647 * boot them off as we MUST have this connection encrypted.
2649 if ((x->EncryptionKey != "") && (!this->ctx_in))
2651 this->WriteLine("ERROR :This link requires AES encryption to be enabled. Plaintext connection refused.");
2652 this->Instance->WriteOpers("*** Server connection from \2"+sname+"\2 denied, remote server did not enable AES.");
2655 this->Instance->WriteOpers("*** Verified incoming server connection from \002"+sname+"\002["+(x->HiddenFromStats ? "<hidden>" : this->GetIP())+"] ("+description+")");
2656 this->InboundServerName = sname;
2657 this->InboundDescription = description;
2658 // this is good. Send our details: Our server name and description and hopcount of 0,
2659 // along with the sendpass from this block.
2660 this->WriteLine(std::string("SERVER ")+this->Instance->Config->ServerName+" "+x->SendPass+" 0 :"+this->Instance->Config->ServerDesc);
2661 // move to the next state, we are now waiting for THEM.
2662 this->LinkState = WAIT_AUTH_2;
2666 this->WriteLine("ERROR :Invalid credentials");
2667 this->Instance->WriteOpers("*** Server connection from \2"+sname+"\2 denied, invalid link credentials");
2671 void Split(std::string line, std::deque<std::string> &n)
2674 irc::tokenstream tokens(line);
2676 while ((param = tokens.GetToken()) != "")
2681 bool ProcessLine(std::string line)
2683 std::deque<std::string> params;
2684 irc::string command;
2690 line = line.substr(0, line.find_first_of("\r\n"));
2692 ServerInstance->Log(DEBUG,"IN: %s", line.c_str());
2694 this->Split(line.c_str(),params);
2696 if ((params[0][0] == ':') && (params.size() > 1))
2698 prefix = params[0].substr(1);
2702 command = params[0].c_str();
2705 if ((!this->ctx_in) && (command == "AES"))
2707 std::string sserv = params[0];
2708 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
2710 if ((x->EncryptionKey != "") && (x->Name == sserv))
2712 this->InitAES(x->EncryptionKey,sserv);
2718 else if ((this->ctx_in) && (command == "AES"))
2720 this->Instance->WriteOpers("*** \2AES\2: Encryption already enabled on this connection yet %s is trying to enable it twice!",params[0].c_str());
2723 switch (this->LinkState)
2728 // Waiting for SERVER command from remote server. Server initiating
2729 // the connection sends the first SERVER command, listening server
2730 // replies with theirs if its happy, then if the initiator is happy,
2731 // it starts to send its net sync, which starts the merge, otherwise
2732 // it sends an ERROR.
2733 if (command == "PASS")
2735 /* Silently ignored */
2737 else if (command == "SERVER")
2739 return this->Inbound_Server(params);
2741 else if (command == "ERROR")
2743 return this->Error(params);
2745 else if (command == "USER")
2747 this->WriteLine("ERROR :Client connections to this port are prohibited.");
2750 else if (command == "CAPAB")
2752 return this->Capab(params);
2754 else if ((command == "U") || (command == "S"))
2756 this->WriteLine("ERROR :Cannot use the old-style mesh linking protocol with m_spanningtree.so!");
2761 this->WriteLine("ERROR :Invalid command in negotiation phase.");
2766 // Waiting for start of other side's netmerge to say they liked our
2768 if (command == "SERVER")
2770 // cant do this, they sent it to us in the WAIT_AUTH_1 state!
2774 else if ((command == "U") || (command == "S"))
2776 this->WriteLine("ERROR :Cannot use the old-style mesh linking protocol with m_spanningtree.so!");
2779 else if (command == "BURST")
2783 /* If a time stamp is provided, try and check syncronization */
2784 time_t THEM = atoi(params[0].c_str());
2785 long delta = THEM-time(NULL);
2786 if ((delta < -600) || (delta > 600))
2788 this->Instance->WriteOpers("*** \2ERROR\2: Your clocks are out by %d seconds (this is more than ten minutes). Link aborted, \2PLEASE SYNC YOUR CLOCKS!\2",abs(delta));
2789 this->WriteLine("ERROR :Your clocks are out by "+ConvToStr(abs(delta))+" seconds (this is more than ten minutes). Link aborted, PLEASE SYNC YOUR CLOCKS!");
2792 else if ((delta < -60) || (delta > 60))
2794 this->Instance->WriteOpers("*** \2WARNING\2: Your clocks are out by %d seconds, please consider synching your clocks.",abs(delta));
2797 this->LinkState = CONNECTED;
2798 Node = new TreeServer(this->Instance,InboundServerName,InboundDescription,TreeRoot,this);
2799 TreeRoot->AddChild(Node);
2801 params.push_back(InboundServerName);
2802 params.push_back("*");
2803 params.push_back("1");
2804 params.push_back(":"+InboundDescription);
2805 DoOneToAllButSender(TreeRoot->GetName(),"SERVER",params,InboundServerName);
2806 this->bursting = true;
2807 this->DoBurst(Node);
2809 else if (command == "ERROR")
2811 return this->Error(params);
2813 else if (command == "CAPAB")
2815 return this->Capab(params);
2820 this->WriteLine("ERROR :Internal error -- listening socket accepted its own descriptor!!!");
2824 if (command == "SERVER")
2826 // another server we connected to, which was in WAIT_AUTH_1 state,
2827 // has just sent us their credentials. If we get this far, theyre
2828 // happy with OUR credentials, and they are now in WAIT_AUTH_2 state.
2829 // if we're happy with this, we should send our netburst which
2830 // kickstarts the merge.
2831 return this->Outbound_Reply_Server(params);
2833 else if (command == "ERROR")
2835 return this->Error(params);
2839 // This is the 'authenticated' state, when all passwords
2840 // have been exchanged and anything past this point is taken
2845 std::string direction = prefix;
2846 userrec* t = this->Instance->FindNick(prefix);
2849 direction = t->server;
2851 TreeServer* route_back_again = BestRouteTo(direction);
2852 if ((!route_back_again) || (route_back_again->GetSocket() != this))
2854 if (route_back_again)
2855 ServerInstance->Log(DEBUG,"Protocol violation: Fake direction in command '%s' from connection '%s'",line.c_str(),this->GetName().c_str());
2860 * When there is activity on the socket, reset the ping counter so
2861 * that we're not wasting bandwidth pinging an active server.
2863 route_back_again->SetNextPingTime(time(NULL) + 60);
2864 route_back_again->SetPingFlag();
2867 if (command == "SVSMODE")
2869 /* Services expects us to implement
2870 * SVSMODE. In inspircd its the same as
2875 std::string target = "";
2876 /* Yes, know, this is a mess. Its reasonably fast though as we're
2877 * working with std::string here.
2879 if ((command == "NICK") && (params.size() > 1))
2881 return this->IntroduceClient(prefix,params);
2883 else if (command == "FJOIN")
2885 return this->ForceJoin(prefix,params);
2887 else if (command == "STATS")
2889 return this->Stats(prefix, params);
2891 else if (command == "SERVER")
2893 return this->RemoteServer(prefix,params);
2895 else if (command == "ERROR")
2897 return this->Error(params);
2899 else if (command == "OPERTYPE")
2901 return this->OperType(prefix,params);
2903 else if (command == "FMODE")
2905 return this->ForceMode(prefix,params);
2907 else if (command == "KILL")
2909 return this->RemoteKill(prefix,params);
2911 else if (command == "FTOPIC")
2913 return this->ForceTopic(prefix,params);
2915 else if (command == "REHASH")
2917 return this->RemoteRehash(prefix,params);
2919 else if (command == "METADATA")
2921 return this->MetaData(prefix,params);
2923 else if (command == "PING")
2926 * We just got a ping from a server that's bursting.
2927 * This can't be right, so set them to not bursting, and
2928 * apply their lines.
2932 this->bursting = false;
2933 ServerInstance->XLines->apply_lines(APPLY_ZLINES|APPLY_GLINES|APPLY_QLINES);
2937 prefix = this->GetName();
2939 return this->LocalPing(prefix,params);
2941 else if (command == "PONG")
2944 * We just got a pong from a server that's bursting.
2945 * This can't be right, so set them to not bursting, and
2946 * apply their lines.
2950 this->bursting = false;
2951 ServerInstance->XLines->apply_lines(APPLY_ZLINES|APPLY_GLINES|APPLY_QLINES);
2955 prefix = this->GetName();
2957 return this->LocalPong(prefix,params);
2959 else if (command == "VERSION")
2961 return this->ServerVersion(prefix,params);
2963 else if (command == "FHOST")
2965 return this->ChangeHost(prefix,params);
2967 else if (command == "FNAME")
2969 return this->ChangeName(prefix,params);
2971 else if (command == "ADDLINE")
2973 return this->AddLine(prefix,params);
2975 else if (command == "SVSNICK")
2979 prefix = this->GetName();
2981 return this->ForceNick(prefix,params);
2983 else if (command == "IDLE")
2985 return this->Whois(prefix,params);
2987 else if (command == "PUSH")
2989 return this->Push(prefix,params);
2991 else if (command == "TIME")
2993 return this->Time(prefix,params);
2995 else if ((command == "KICK") && (IsServer(prefix)))
2997 std::string sourceserv = this->myhost;
2998 if (params.size() == 3)
3000 userrec* user = this->Instance->FindNick(params[1]);
3001 chanrec* chan = this->Instance->FindChan(params[0]);
3004 if (!chan->ServerKickUser(user, params[2].c_str(), false))
3005 /* Yikes, the channels gone! */
3009 if (this->InboundServerName != "")
3011 sourceserv = this->InboundServerName;
3013 return DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
3015 else if (command == "SVSJOIN")
3019 prefix = this->GetName();
3021 return this->ServiceJoin(prefix,params);
3023 else if (command == "SQUIT")
3025 if (params.size() == 2)
3027 this->Squit(FindServer(params[0]),params[1]);
3031 else if (command == "ENDBURST")
3033 this->bursting = false;
3034 ServerInstance->XLines->apply_lines(APPLY_ZLINES|APPLY_GLINES|APPLY_QLINES);
3035 std::string sourceserv = this->myhost;
3036 if (this->InboundServerName != "")
3038 sourceserv = this->InboundServerName;
3040 this->Instance->WriteOpers("*** Received end of netburst from \2%s\2",sourceserv.c_str());
3045 // not a special inter-server command.
3046 // Emulate the actual user doing the command,
3047 // this saves us having a huge ugly parser.
3048 userrec* who = this->Instance->FindNick(prefix);
3049 std::string sourceserv = this->myhost;
3050 if (this->InboundServerName != "")
3052 sourceserv = this->InboundServerName;
3056 if ((command == "NICK") && (params.size() > 0))
3058 /* On nick messages, check that the nick doesnt
3059 * already exist here. If it does, kill their copy,
3062 userrec* x = this->Instance->FindNick(params[0]);
3063 if ((x) && (x != who))
3065 std::deque<std::string> p;
3066 p.push_back(params[0]);
3067 p.push_back("Nickname collision ("+prefix+" -> "+params[0]+")");
3068 DoOneToMany(this->Instance->Config->ServerName,"KILL",p);
3070 p.push_back(prefix);
3071 p.push_back("Nickname collision");
3072 DoOneToMany(this->Instance->Config->ServerName,"KILL",p);
3073 userrec::QuitUser(this->Instance,x,"Nickname collision ("+prefix+" -> "+params[0]+")");
3074 userrec* y = this->Instance->FindNick(prefix);
3077 userrec::QuitUser(this->Instance,y,"Nickname collision");
3079 return DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
3083 target = who->server;
3084 const char* strparams[127];
3085 for (unsigned int q = 0; q < params.size(); q++)
3087 strparams[q] = params[q].c_str();
3089 if (!this->Instance->CallCommandHandler(command.c_str(), strparams, params.size(), who))
3091 this->WriteLine("ERROR :Unrecognised command '"+std::string(command.c_str())+"' -- possibly loaded mismatched modules");
3097 // its not a user. Its either a server, or somethings screwed up.
3098 if (IsServer(prefix))
3100 target = this->Instance->Config->ServerName;
3104 ServerInstance->Log(DEBUG,"Command with unknown origin '%s'",prefix.c_str());
3108 return DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
3117 virtual std::string GetName()
3119 std::string sourceserv = this->myhost;
3120 if (this->InboundServerName != "")
3122 sourceserv = this->InboundServerName;
3127 virtual void OnTimeout()
3129 if (this->LinkState == CONNECTING)
3131 this->Instance->WriteOpers("*** CONNECT: Connection to \002"+myhost+"\002 timed out.");
3135 virtual void OnClose()
3137 // Connection closed.
3138 // If the connection is fully up (state CONNECTED)
3139 // then propogate a netsplit to all peers.
3140 std::string quitserver = this->myhost;
3141 if (this->InboundServerName != "")
3143 quitserver = this->InboundServerName;
3145 TreeServer* s = FindServer(quitserver);
3148 Squit(s,"Remote host closed the connection");
3150 this->Instance->WriteOpers("Server '\2%s\2' closed the connection.",quitserver.c_str());
3153 virtual int OnIncomingConnection(int newsock, char* ip)
3155 /* To prevent anyone from attempting to flood opers/DDoS by connecting to the server port,
3156 * or discovering if this port is the server port, we don't allow connections from any
3157 * IPs for which we don't have a link block.
3161 found = (std::find(ValidIPs.begin(), ValidIPs.end(), ip) != ValidIPs.end());
3164 for (vector<std::string>::iterator i = ValidIPs.begin(); i != ValidIPs.end(); i++)
3165 if (MatchCIDR(ip, (*i).c_str()))
3170 this->Instance->WriteOpers("Server connection from %s denied (no link blocks with that IP address)", ip);
3175 TreeSocket* s = new TreeSocket(this->Instance, newsock, ip);
3176 s = s; /* Whinge whinge whinge, thats all GCC ever does. */
3181 /** This class is used to resolve server hostnames during /connect and autoconnect.
3182 * As of 1.1, the resolver system is seperated out from InspSocket, so we must do this
3183 * resolver step first ourselves if we need it. This is totally nonblocking, and will
3184 * callback to OnLookupComplete or OnError when completed. Once it has completed we
3185 * will have an IP address which we can then use to continue our connection.
3187 class ServernameResolver : public Resolver
3190 /** A copy of the Link tag info for what we're connecting to.
3191 * We take a copy, rather than using a pointer, just in case the
3192 * admin takes the tag away and rehashes while the domain is resolving.
3196 ServernameResolver(InspIRCd* Instance, const std::string &hostname, Link x) : Resolver(Instance, hostname, DNS_QUERY_FORWARD), MyLink(x)
3198 /* Nothing in here, folks */
3201 void OnLookupComplete(const std::string &result)
3203 /* Initiate the connection, now that we have an IP to use.
3204 * Passing a hostname directly to InspSocket causes it to
3205 * just bail and set its FD to -1.
3207 TreeServer* CheckDupe = FindServer(MyLink.Name.c_str());
3208 if (!CheckDupe) /* Check that nobody tried to connect it successfully while we were resolving */
3210 TreeSocket* newsocket = new TreeSocket(ServerInstance, result,MyLink.Port,false,10,MyLink.Name.c_str());
3211 if (newsocket->GetFd() > -1)
3217 /* Something barfed, show the opers */
3218 ServerInstance->WriteOpers("*** CONNECT: Error connecting \002%s\002: %s.",MyLink.Name.c_str(),strerror(errno));
3224 void OnError(ResolverError e, const std::string &errormessage)
3227 ServerInstance->WriteOpers("*** CONNECT: Error connecting \002%s\002: Unable to resolve hostname - %s",MyLink.Name.c_str(),errormessage.c_str());
3231 class SecurityIPResolver : public Resolver
3236 SecurityIPResolver(InspIRCd* Instance, const std::string &hostname, Link x) : Resolver(Instance, hostname, DNS_QUERY_FORWARD), MyLink(x)
3240 void OnLookupComplete(const std::string &result)
3242 ServerInstance->Log(DEBUG,"Security IP cache: Adding IP address '%s' for Link '%s'",result.c_str(),MyLink.Name.c_str());
3243 ValidIPs.push_back(result);
3246 void OnError(ResolverError e, const std::string &errormessage)
3248 ServerInstance->Log(DEBUG,"Could not resolve IP associated with Link '%s': %s",MyLink.Name.c_str(),errormessage.c_str());
3252 void AddThisServer(TreeServer* server, std::deque<TreeServer*> &list)
3254 for (unsigned int c = 0; c < list.size(); c++)
3256 if (list[c] == server)
3261 list.push_back(server);
3264 // returns a list of DIRECT servernames for a specific channel
3265 void GetListOfServersForChannel(chanrec* c, std::deque<TreeServer*> &list)
3267 CUList *ulist = c->GetUsers();
3268 for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
3270 if (i->second->GetFd() < 0)
3272 TreeServer* best = BestRouteTo(i->second->server);
3274 AddThisServer(best,list);
3280 bool DoOneToAllButSenderRaw(std::string data, std::string omit, std::string prefix, irc::string command, std::deque<std::string> ¶ms)
3282 TreeServer* omitroute = BestRouteTo(omit);
3283 if ((command == "NOTICE") || (command == "PRIVMSG"))
3285 if (params.size() >= 2)
3288 if ((*(params[0].c_str()) == '@') || (*(params[0].c_str()) == '%') || (*(params[0].c_str()) == '+'))
3290 params[0] = params[0].substr(1, params[0].length()-1);
3292 if ((*(params[0].c_str()) != '#') && (*(params[0].c_str()) != '$'))
3294 // special routing for private messages/notices
3295 userrec* d = ServerInstance->FindNick(params[0]);
3298 std::deque<std::string> par;
3299 par.push_back(params[0]);
3300 par.push_back(":"+params[1]);
3301 DoOneToOne(prefix,command.c_str(),par,d->server);
3305 else if (*(params[0].c_str()) == '$')
3307 std::deque<std::string> par;
3308 par.push_back(params[0]);
3309 par.push_back(":"+params[1]);
3310 DoOneToAllButSender(prefix,command.c_str(),par,omitroute->GetName());
3315 ServerInstance->Log(DEBUG,"Channel privmsg going to chan %s",params[0].c_str());
3316 chanrec* c = ServerInstance->FindChan(params[0]);
3319 std::deque<TreeServer*> list;
3320 GetListOfServersForChannel(c,list);
3321 ServerInstance->Log(DEBUG,"Got a list of %d servers",list.size());
3322 unsigned int lsize = list.size();
3323 for (unsigned int i = 0; i < lsize; i++)
3325 TreeSocket* Sock = list[i]->GetSocket();
3326 if ((Sock) && (list[i]->GetName() != omit) && (omitroute != list[i]))
3328 ServerInstance->Log(DEBUG,"Writing privmsg to server %s",list[i]->GetName().c_str());
3329 Sock->WriteLine(data);
3337 unsigned int items = TreeRoot->ChildCount();
3338 for (unsigned int x = 0; x < items; x++)
3340 TreeServer* Route = TreeRoot->GetChild(x);
3341 if ((Route) && (Route->GetSocket()) && (Route->GetName() != omit) && (omitroute != Route))
3343 TreeSocket* Sock = Route->GetSocket();
3345 Sock->WriteLine(data);
3351 bool DoOneToAllButSender(std::string prefix, std::string command, std::deque<std::string> ¶ms, std::string omit)
3353 TreeServer* omitroute = BestRouteTo(omit);
3354 std::string FullLine = ":" + prefix + " " + command;
3355 unsigned int words = params.size();
3356 for (unsigned int x = 0; x < words; x++)
3358 FullLine = FullLine + " " + params[x];
3360 unsigned int items = TreeRoot->ChildCount();
3361 for (unsigned int x = 0; x < items; x++)
3363 TreeServer* Route = TreeRoot->GetChild(x);
3364 // Send the line IF:
3365 // The route has a socket (its a direct connection)
3366 // The route isnt the one to be omitted
3367 // The route isnt the path to the one to be omitted
3368 if ((Route) && (Route->GetSocket()) && (Route->GetName() != omit) && (omitroute != Route))
3370 TreeSocket* Sock = Route->GetSocket();
3372 Sock->WriteLine(FullLine);
3378 bool DoOneToMany(std::string prefix, std::string command, std::deque<std::string> ¶ms)
3380 std::string FullLine = ":" + prefix + " " + command;
3381 unsigned int words = params.size();
3382 for (unsigned int x = 0; x < words; x++)
3384 FullLine = FullLine + " " + params[x];
3386 unsigned int items = TreeRoot->ChildCount();
3387 for (unsigned int x = 0; x < items; x++)
3389 TreeServer* Route = TreeRoot->GetChild(x);
3390 if (Route && Route->GetSocket())
3392 TreeSocket* Sock = Route->GetSocket();
3394 Sock->WriteLine(FullLine);
3400 bool DoOneToMany(const char* prefix, const char* command, std::deque<std::string> ¶ms)
3402 std::string spfx = prefix;
3403 std::string scmd = command;
3404 return DoOneToMany(spfx, scmd, params);
3407 bool DoOneToAllButSender(const char* prefix, const char* command, std::deque<std::string> ¶ms, std::string omit)
3409 std::string spfx = prefix;
3410 std::string scmd = command;
3411 return DoOneToAllButSender(spfx, scmd, params, omit);
3414 bool DoOneToOne(std::string prefix, std::string command, std::deque<std::string> ¶ms, std::string target)
3416 TreeServer* Route = BestRouteTo(target);
3419 std::string FullLine = ":" + prefix + " " + command;
3420 unsigned int words = params.size();
3421 for (unsigned int x = 0; x < words; x++)
3423 FullLine = FullLine + " " + params[x];
3425 if (Route && Route->GetSocket())
3427 TreeSocket* Sock = Route->GetSocket();
3429 Sock->WriteLine(FullLine);
3439 std::vector<TreeSocket*> Bindings;
3441 void ReadConfiguration(bool rebind)
3443 Conf = new ConfigReader(ServerInstance);
3446 for (int j =0; j < Conf->Enumerate("bind"); j++)
3448 std::string Type = Conf->ReadValue("bind","type",j);
3449 std::string IP = Conf->ReadValue("bind","address",j);
3450 long Port = Conf->ReadInteger("bind","port",j,true);
3451 if (Type == "servers")
3457 TreeSocket* listener = new TreeSocket(ServerInstance, IP.c_str(),Port,true,10);
3458 if (listener->GetState() == I_LISTENING)
3460 Bindings.push_back(listener);
3464 ServerInstance->Log(DEFAULT,"m_spanningtree: Warning: Failed to bind server port %d",Port);
3471 FlatLinks = Conf->ReadFlag("options","flatlinks",0);
3472 HideULines = Conf->ReadFlag("options","hideulines",0);
3475 for (int j =0; j < Conf->Enumerate("link"); j++)
3478 std::string Allow = Conf->ReadValue("link","allowmask",j);
3479 L.Name = (Conf->ReadValue("link","name",j)).c_str();
3480 L.IPAddr = Conf->ReadValue("link","ipaddr",j);
3481 L.Port = Conf->ReadInteger("link","port",j,true);
3482 L.SendPass = Conf->ReadValue("link","sendpass",j);
3483 L.RecvPass = Conf->ReadValue("link","recvpass",j);
3484 L.AutoConnect = Conf->ReadInteger("link","autoconnect",j,true);
3485 L.EncryptionKey = Conf->ReadValue("link","encryptionkey",j);
3486 L.HiddenFromStats = Conf->ReadFlag("link","hidden",j);
3487 L.NextConnectTime = time(NULL) + L.AutoConnect;
3488 /* Bugfix by brain, do not allow people to enter bad configurations */
3489 if ((L.IPAddr != "") && (L.RecvPass != "") && (L.SendPass != "") && (L.Name != "") && (L.Port))
3491 ValidIPs.push_back(L.IPAddr);
3494 ValidIPs.push_back(Allow);
3496 /* Needs resolving */
3498 if (insp_aton(L.IPAddr.c_str(), &binip) < 1)
3502 SecurityIPResolver* sr = new SecurityIPResolver(ServerInstance, L.IPAddr, L);
3503 ServerInstance->AddResolver(sr);
3505 catch (ModuleException& e)
3507 ServerInstance->Log(DEBUG,"Error in resolver: %s",e.GetReason());
3511 LinkBlocks.push_back(L);
3512 ServerInstance->Log(DEBUG,"m_spanningtree: Read server %s with host %s:%d",L.Name.c_str(),L.IPAddr.c_str(),L.Port);
3518 ServerInstance->Log(DEFAULT,"Invalid configuration for server '%s', IP address not defined!",L.Name.c_str());
3520 else if (L.RecvPass == "")
3522 ServerInstance->Log(DEFAULT,"Invalid configuration for server '%s', recvpass not defined!",L.Name.c_str());
3524 else if (L.SendPass == "")
3526 ServerInstance->Log(DEFAULT,"Invalid configuration for server '%s', sendpass not defined!",L.Name.c_str());
3528 else if (L.Name == "")
3530 ServerInstance->Log(DEFAULT,"Invalid configuration, link tag without a name!");
3534 ServerInstance->Log(DEFAULT,"Invalid configuration for server '%s', no port specified!",L.Name.c_str());
3542 class ModuleSpanningTree : public Module
3544 std::vector<TreeSocket*> Bindings;
3547 unsigned int max_local;
3548 unsigned int max_global;
3549 cmd_rconnect* command_rconnect;
3553 ModuleSpanningTree(InspIRCd* Me)
3554 : Module::Module(Me), max_local(0), max_global(0)
3559 ::ServerInstance = Me;
3561 // Create the root of the tree
3562 TreeRoot = new TreeServer(ServerInstance, ServerInstance->Config->ServerName, ServerInstance->Config->ServerDesc);
3564 ReadConfiguration(true);
3566 command_rconnect = new cmd_rconnect(ServerInstance, this);
3567 ServerInstance->AddCommand(command_rconnect);
3570 void ShowLinks(TreeServer* Current, userrec* user, int hops)
3572 std::string Parent = TreeRoot->GetName();
3573 if (Current->GetParent())
3575 Parent = Current->GetParent()->GetName();
3577 for (unsigned int q = 0; q < Current->ChildCount(); q++)
3579 if ((HideULines) && (ServerInstance->ULine(Current->GetChild(q)->GetName().c_str())))
3583 ShowLinks(Current->GetChild(q),user,hops+1);
3588 ShowLinks(Current->GetChild(q),user,hops+1);
3591 /* Don't display the line if its a uline, hide ulines is on, and the user isnt an oper */
3592 if ((HideULines) && (ServerInstance->ULine(Current->GetName().c_str())) && (!*user->oper))
3594 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());
3597 int CountLocalServs()
3599 return TreeRoot->ChildCount();
3604 return serverlist.size();
3607 void HandleLinks(const char** parameters, int pcnt, userrec* user)
3609 ShowLinks(TreeRoot,user,0);
3610 user->WriteServ("365 %s * :End of /LINKS list.",user->nick);
3614 void HandleLusers(const char** parameters, int pcnt, userrec* user)
3616 unsigned int n_users = ServerInstance->UserCount();
3618 /* Only update these when someone wants to see them, more efficient */
3619 if ((unsigned int)ServerInstance->LocalUserCount() > max_local)
3620 max_local = ServerInstance->LocalUserCount();
3621 if (n_users > max_global)
3622 max_global = n_users;
3624 user->WriteServ("251 %s :There are %d users and %d invisible on %d servers",user->nick,n_users-ServerInstance->InvisibleUserCount(),ServerInstance->InvisibleUserCount(),this->CountServs());
3625 if (ServerInstance->OperCount())
3626 user->WriteServ("252 %s %d :operator(s) online",user->nick,ServerInstance->OperCount());
3627 if (ServerInstance->UnregisteredUserCount())
3628 user->WriteServ("253 %s %d :unknown connections",user->nick,ServerInstance->UnregisteredUserCount());
3629 if (ServerInstance->ChannelCount())
3630 user->WriteServ("254 %s %d :channels formed",user->nick,ServerInstance->ChannelCount());
3631 user->WriteServ("254 %s :I have %d clients and %d servers",user->nick,ServerInstance->LocalUserCount(),this->CountLocalServs());
3632 user->WriteServ("265 %s :Current Local Users: %d Max: %d",user->nick,ServerInstance->LocalUserCount(),max_local);
3633 user->WriteServ("266 %s :Current Global Users: %d Max: %d",user->nick,n_users,max_global);
3637 // WARNING: NOT THREAD SAFE - DONT GET ANY SMART IDEAS.
3639 void ShowMap(TreeServer* Current, userrec* user, int depth, char matrix[128][80], float &totusers, float &totservers)
3643 for (int t = 0; t < depth; t++)
3645 matrix[line][t] = ' ';
3648 // For Aligning, we need to work out exactly how deep this thing is, and produce
3649 // a 'Spacer' String to compensate.
3652 memset(spacer,' ',40);
3653 if ((40 - Current->GetName().length() - depth) > 1) {
3654 spacer[40 - Current->GetName().length() - depth] = '\0';
3663 if (ServerInstance->clientlist.size() == 0) {
3664 // If there are no users, WHO THE HELL DID THE /MAP?!?!?!
3669 percent = ((float)Current->GetUserCount() / (float)ServerInstance->clientlist.size()) * 100;
3671 snprintf(text, 80, "%s %s%5d [%5.2f%%]", Current->GetName().c_str(), spacer, Current->GetUserCount(), percent);
3672 totusers += Current->GetUserCount();
3674 strlcpy(&matrix[line][depth],text,80);
3676 for (unsigned int q = 0; q < Current->ChildCount(); q++)
3678 if ((HideULines) && (ServerInstance->ULine(Current->GetChild(q)->GetName().c_str())))
3682 ShowMap(Current->GetChild(q),user,(FlatLinks && (!*user->oper)) ? depth : depth+2,matrix,totusers,totservers);
3687 ShowMap(Current->GetChild(q),user,(FlatLinks && (!*user->oper)) ? depth : depth+2,matrix,totusers,totservers);
3693 int HandleStats(const char** parameters, int pcnt, userrec* user)
3697 /* Remote STATS, the server is within the 2nd parameter */
3698 std::deque<std::string> params;
3699 params.push_back(parameters[0]);
3700 params.push_back(parameters[1]);
3701 /* Send it out remotely, generate no reply yet */
3702 TreeServer* s = FindServerMask(parameters[1]);
3705 params[1] = s->GetName();
3706 DoOneToOne(user->nick, "STATS", params, s->GetName());
3710 user->WriteServ( "402 %s %s :No such server", user->nick, parameters[0]);
3717 // Ok, prepare to be confused.
3718 // After much mulling over how to approach this, it struck me that
3719 // the 'usual' way of doing a /MAP isnt the best way. Instead of
3720 // keeping track of a ton of ascii characters, and line by line
3721 // under recursion working out where to place them using multiplications
3722 // and divisons, we instead render the map onto a backplane of characters
3723 // (a character matrix), then draw the branches as a series of "L" shapes
3724 // from the nodes. This is not only friendlier on CPU it uses less stack.
3726 void HandleMap(const char** parameters, int pcnt, userrec* user)
3728 // This array represents a virtual screen which we will
3729 // "scratch" draw to, as the console device of an irc
3730 // client does not provide for a proper terminal.
3732 float totservers = 0;
3733 char matrix[128][80];
3734 for (unsigned int t = 0; t < 128; t++)
3736 matrix[t][0] = '\0';
3739 // The only recursive bit is called here.
3740 ShowMap(TreeRoot,user,0,matrix,totusers,totservers);
3741 // Process each line one by one. The algorithm has a limit of
3742 // 128 servers (which is far more than a spanning tree should have
3743 // anyway, so we're ok). This limit can be raised simply by making
3744 // the character matrix deeper, 128 rows taking 10k of memory.
3745 for (int l = 1; l < line; l++)
3747 // scan across the line looking for the start of the
3748 // servername (the recursive part of the algorithm has placed
3749 // the servers at indented positions depending on what they
3751 int first_nonspace = 0;
3752 while (matrix[l][first_nonspace] == ' ')
3757 // Draw the `- (corner) section: this may be overwritten by
3758 // another L shape passing along the same vertical pane, becoming
3759 // a |- (branch) section instead.
3760 matrix[l][first_nonspace] = '-';
3761 matrix[l][first_nonspace-1] = '`';
3763 // Draw upwards until we hit the parent server, causing possibly
3764 // other corners (`-) to become branches (|-)
3765 while ((matrix[l2][first_nonspace-1] == ' ') || (matrix[l2][first_nonspace-1] == '`'))
3767 matrix[l2][first_nonspace-1] = '|';
3771 // dump the whole lot to the user. This is the easy bit, honest.
3772 for (int t = 0; t < line; t++)
3774 user->WriteServ("006 %s :%s",user->nick,&matrix[t][0]);
3776 float avg_users = totusers / totservers;
3777 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);
3778 user->WriteServ("007 %s :End of /MAP",user->nick);
3782 int HandleSquit(const char** parameters, int pcnt, userrec* user)
3784 TreeServer* s = FindServerMask(parameters[0]);
3789 user->WriteServ("NOTICE %s :*** SQUIT: Foolish mortal, you cannot make a server SQUIT itself! (%s matches local server name)",user->nick,parameters[0]);
3792 TreeSocket* sock = s->GetSocket();
3795 ServerInstance->Log(DEBUG,"Splitting server %s",s->GetName().c_str());
3796 ServerInstance->WriteOpers("*** SQUIT: Server \002%s\002 removed from network by %s",parameters[0],user->nick);
3797 sock->Squit(s,"Server quit by "+std::string(user->nick)+"!"+std::string(user->ident)+"@"+std::string(user->host));
3798 ServerInstance->SE->DelFd(sock);
3804 user->WriteServ("NOTICE %s :*** SQUIT: The server \002%s\002 is not directly connected.",user->nick,parameters[0]);
3809 user->WriteServ("NOTICE %s :*** SQUIT: The server \002%s\002 does not exist on the network.",user->nick,parameters[0]);
3814 int HandleTime(const char** parameters, int pcnt, userrec* user)
3816 if ((IS_LOCAL(user)) && (pcnt))
3818 TreeServer* found = FindServerMask(parameters[0]);
3821 // we dont' override for local server
3822 if (found == TreeRoot)
3825 std::deque<std::string> params;
3826 params.push_back(found->GetName());
3827 params.push_back(user->nick);
3828 DoOneToOne(ServerInstance->Config->ServerName,"TIME",params,found->GetName());
3832 user->WriteServ("402 %s %s :No such server",user->nick,parameters[0]);
3838 int HandleRemoteWhois(const char** parameters, int pcnt, userrec* user)
3840 if ((IS_LOCAL(user)) && (pcnt > 1))
3842 userrec* remote = ServerInstance->FindNick(parameters[1]);
3843 if ((remote) && (remote->GetFd() < 0))
3845 std::deque<std::string> params;
3846 params.push_back(parameters[1]);
3847 DoOneToOne(user->nick,"IDLE",params,remote->server);
3852 user->WriteServ("401 %s %s :No such nick/channel",user->nick, parameters[1]);
3853 user->WriteServ("318 %s %s :End of /WHOIS list.",user->nick, parameters[1]);
3860 void DoPingChecks(time_t curtime)
3862 for (unsigned int j = 0; j < TreeRoot->ChildCount(); j++)
3864 TreeServer* serv = TreeRoot->GetChild(j);
3865 TreeSocket* sock = serv->GetSocket();
3868 if (curtime >= serv->NextPingTime())
3870 if (serv->AnsweredLastPing())
3872 sock->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" PING "+serv->GetName());
3873 serv->SetNextPingTime(curtime + 60);
3877 // they didnt answer, boot them
3878 ServerInstance->WriteOpers("*** Server \002%s\002 pinged out",serv->GetName().c_str());
3879 sock->Squit(serv,"Ping timeout");
3880 ServerInstance->SE->DelFd(sock);
3890 void AutoConnectServers(time_t curtime)
3892 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
3894 if ((x->AutoConnect) && (curtime >= x->NextConnectTime))
3896 ServerInstance->Log(DEBUG,"Auto-Connecting %s",x->Name.c_str());
3897 x->NextConnectTime = curtime + x->AutoConnect;
3898 TreeServer* CheckDupe = FindServer(x->Name.c_str());
3901 // an autoconnected server is not connected. Check if its time to connect it
3902 ServerInstance->WriteOpers("*** AUTOCONNECT: Auto-connecting server \002%s\002 (%lu seconds until next attempt)",x->Name.c_str(),x->AutoConnect);
3906 /* Do we already have an IP? If so, no need to resolve it. */
3907 if (insp_aton(x->IPAddr.c_str(), &binip) > 0)
3909 TreeSocket* newsocket = new TreeSocket(ServerInstance, x->IPAddr,x->Port,false,10,x->Name.c_str());
3910 if (newsocket->GetFd() > -1)
3915 ServerInstance->WriteOpers("*** AUTOCONNECT: Error autoconnecting \002%s\002: %s.",x->Name.c_str(),strerror(errno));
3923 ServernameResolver* snr = new ServernameResolver(ServerInstance,x->IPAddr, *x);
3924 ServerInstance->AddResolver(snr);
3926 catch (ModuleException& e)
3928 ServerInstance->Log(DEBUG,"Error in resolver: %s",e.GetReason());
3937 int HandleVersion(const char** parameters, int pcnt, userrec* user)
3939 // we've already checked if pcnt > 0, so this is safe
3940 TreeServer* found = FindServerMask(parameters[0]);
3943 std::string Version = found->GetVersion();
3944 user->WriteServ("351 %s :%s",user->nick,Version.c_str());
3945 if (found == TreeRoot)
3947 std::stringstream out(ServerInstance->Config->data005);
3948 std::string token = "";
3949 std::string line5 = "";
3950 int token_counter = 0;
3955 line5 = line5 + token + " ";
3958 if ((token_counter >= 13) || (out.eof() == true))
3960 user->WriteServ("005 %s %s:are supported by this server",user->nick,line5.c_str());
3969 user->WriteServ("402 %s %s :No such server",user->nick,parameters[0]);
3974 int HandleConnect(const char** parameters, int pcnt, userrec* user)
3976 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
3978 if (ServerInstance->MatchText(x->Name.c_str(),parameters[0]))
3980 TreeServer* CheckDupe = FindServer(x->Name.c_str());
3983 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);
3986 /* Do we already have an IP? If so, no need to resolve it. */
3987 if (insp_aton(x->IPAddr.c_str(), &binip) > 0)
3989 TreeSocket* newsocket = new TreeSocket(ServerInstance,x->IPAddr,x->Port,false,10,x->Name.c_str());
3990 if (newsocket->GetFd() > -1)
3995 ServerInstance->WriteOpers("*** CONNECT: Error connecting \002%s\002: %s.",x->Name.c_str(),strerror(errno));
4003 ServernameResolver* snr = new ServernameResolver(ServerInstance, x->IPAddr, *x);
4004 ServerInstance->AddResolver(snr);
4006 catch (ModuleException& e)
4008 ServerInstance->Log(DEBUG,"Error in resolver: %s",e.GetReason());
4015 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());
4020 user->WriteServ("NOTICE %s :*** CONNECT: No server matching \002%s\002 could be found in the config file.",user->nick,parameters[0]);
4024 virtual int OnStats(char statschar, userrec* user, string_list &results)
4026 if (statschar == 'c')
4028 for (unsigned int i = 0; i < LinkBlocks.size(); i++)
4030 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');
4031 results.push_back(std::string(ServerInstance->Config->ServerName)+" 244 "+user->nick+" H * * "+LinkBlocks[i].Name.c_str());
4033 results.push_back(std::string(ServerInstance->Config->ServerName)+" 219 "+user->nick+" "+statschar+" :End of /STATS report");
4034 ServerInstance->WriteOpers("*** Notice: %s '%c' requested by %s (%s@%s)",(!strcmp(user->server,ServerInstance->Config->ServerName) ? "Stats" : "Remote stats"),statschar,user->nick,user->ident,user->host);
4040 virtual int OnPreCommand(const std::string &command, const char** parameters, int pcnt, userrec *user, bool validated)
4042 /* If the command doesnt appear to be valid, we dont want to mess with it. */
4046 if (command == "CONNECT")
4048 return this->HandleConnect(parameters,pcnt,user);
4050 else if (command == "STATS")
4052 return this->HandleStats(parameters,pcnt,user);
4054 else if (command == "SQUIT")
4056 return this->HandleSquit(parameters,pcnt,user);
4058 else if (command == "MAP")
4060 this->HandleMap(parameters,pcnt,user);
4063 else if ((command == "TIME") && (pcnt > 0))
4065 return this->HandleTime(parameters,pcnt,user);
4067 else if (command == "LUSERS")
4069 this->HandleLusers(parameters,pcnt,user);
4072 else if (command == "LINKS")
4074 this->HandleLinks(parameters,pcnt,user);
4077 else if (command == "WHOIS")
4082 return this->HandleRemoteWhois(parameters,pcnt,user);
4085 else if ((command == "VERSION") && (pcnt > 0))
4087 this->HandleVersion(parameters,pcnt,user);
4090 else if (ServerInstance->IsValidModuleCommand(command, pcnt, user))
4092 // this bit of code cleverly routes all module commands
4093 // to all remote severs *automatically* so that modules
4094 // can just handle commands locally, without having
4095 // to have any special provision in place for remote
4096 // commands and linking protocols.
4097 std::deque<std::string> params;
4099 for (int j = 0; j < pcnt; j++)
4101 if (strchr(parameters[j],' '))
4103 params.push_back(":" + std::string(parameters[j]));
4107 params.push_back(std::string(parameters[j]));
4110 ServerInstance->Log(DEBUG,"Globally route '%s'",command.c_str());
4111 DoOneToMany(user->nick,command,params);
4116 virtual void OnGetServerDescription(const std::string &servername,std::string &description)
4118 TreeServer* s = FindServer(servername);
4121 description = s->GetDesc();
4125 virtual void OnUserInvite(userrec* source,userrec* dest,chanrec* channel)
4127 if (IS_LOCAL(source))
4129 std::deque<std::string> params;
4130 params.push_back(dest->nick);
4131 params.push_back(channel->name);
4132 DoOneToMany(source->nick,"INVITE",params);
4136 virtual void OnPostLocalTopicChange(userrec* user, chanrec* chan, const std::string &topic)
4138 std::deque<std::string> params;
4139 params.push_back(chan->name);
4140 params.push_back(":"+topic);
4141 DoOneToMany(user->nick,"TOPIC",params);
4144 virtual void OnWallops(userrec* user, const std::string &text)
4148 std::deque<std::string> params;
4149 params.push_back(":"+text);
4150 DoOneToMany(user->nick,"WALLOPS",params);
4154 virtual void OnUserNotice(userrec* user, void* dest, int target_type, const std::string &text, char status)
4156 if (target_type == TYPE_USER)
4158 userrec* d = (userrec*)dest;
4159 if ((d->GetFd() < 0) && (IS_LOCAL(user)))
4161 std::deque<std::string> params;
4163 params.push_back(d->nick);
4164 params.push_back(":"+text);
4165 DoOneToOne(user->nick,"NOTICE",params,d->server);
4168 else if (target_type == TYPE_CHANNEL)
4172 chanrec *c = (chanrec*)dest;
4175 std::string cname = c->name;
4177 cname = status + cname;
4178 std::deque<TreeServer*> list;
4179 GetListOfServersForChannel(c,list);
4180 unsigned int ucount = list.size();
4181 for (unsigned int i = 0; i < ucount; i++)
4183 TreeSocket* Sock = list[i]->GetSocket();
4185 Sock->WriteLine(":"+std::string(user->nick)+" NOTICE "+cname+" :"+text);
4190 else if (target_type == TYPE_SERVER)
4194 char* target = (char*)dest;
4195 std::deque<std::string> par;
4196 par.push_back(target);
4197 par.push_back(":"+text);
4198 DoOneToMany(user->nick,"NOTICE",par);
4203 virtual void OnUserMessage(userrec* user, void* dest, int target_type, const std::string &text, char status)
4205 if (target_type == TYPE_USER)
4207 // route private messages which are targetted at clients only to the server
4208 // which needs to receive them
4209 userrec* d = (userrec*)dest;
4210 if ((d->GetFd() < 0) && (IS_LOCAL(user)))
4212 std::deque<std::string> params;
4214 params.push_back(d->nick);
4215 params.push_back(":"+text);
4216 DoOneToOne(user->nick,"PRIVMSG",params,d->server);
4219 else if (target_type == TYPE_CHANNEL)
4223 chanrec *c = (chanrec*)dest;
4226 std::string cname = c->name;
4228 cname = status + cname;
4229 std::deque<TreeServer*> list;
4230 GetListOfServersForChannel(c,list);
4231 unsigned int ucount = list.size();
4232 for (unsigned int i = 0; i < ucount; i++)
4234 TreeSocket* Sock = list[i]->GetSocket();
4236 Sock->WriteLine(":"+std::string(user->nick)+" PRIVMSG "+cname+" :"+text);
4241 else if (target_type == TYPE_SERVER)
4245 char* target = (char*)dest;
4246 std::deque<std::string> par;
4247 par.push_back(target);
4248 par.push_back(":"+text);
4249 DoOneToMany(user->nick,"PRIVMSG",par);
4254 virtual void OnBackgroundTimer(time_t curtime)
4256 AutoConnectServers(curtime);
4257 DoPingChecks(curtime);
4260 virtual void OnUserJoin(userrec* user, chanrec* channel)
4262 // Only do this for local users
4265 std::deque<std::string> params;
4267 params.push_back(channel->name);
4269 if (channel->GetUserCounter() > 1)
4271 // not the first in the channel
4272 DoOneToMany(user->nick,"JOIN",params);
4276 // first in the channel, set up their permissions
4277 // and the channel TS with FJOIN.
4279 snprintf(ts,24,"%lu",(unsigned long)channel->age);
4281 params.push_back(channel->name);
4282 params.push_back(ts);
4283 params.push_back("@,"+std::string(user->nick));
4284 DoOneToMany(ServerInstance->Config->ServerName,"FJOIN",params);
4289 virtual void OnChangeHost(userrec* user, const std::string &newhost)
4291 // only occurs for local clients
4292 if (user->registered != REG_ALL)
4294 std::deque<std::string> params;
4295 params.push_back(newhost);
4296 DoOneToMany(user->nick,"FHOST",params);
4299 virtual void OnChangeName(userrec* user, const std::string &gecos)
4301 // only occurs for local clients
4302 if (user->registered != REG_ALL)
4304 std::deque<std::string> params;
4305 params.push_back(gecos);
4306 DoOneToMany(user->nick,"FNAME",params);
4309 virtual void OnUserPart(userrec* user, chanrec* channel, const std::string &partmessage)
4313 std::deque<std::string> params;
4314 params.push_back(channel->name);
4315 if (partmessage != "")
4316 params.push_back(":"+partmessage);
4317 DoOneToMany(user->nick,"PART",params);
4321 virtual void OnUserConnect(userrec* user)
4323 char agestr[MAXBUF];
4326 std::deque<std::string> params;
4327 snprintf(agestr,MAXBUF,"%lu",(unsigned long)user->age);
4328 params.push_back(agestr);
4329 params.push_back(user->nick);
4330 params.push_back(user->host);
4331 params.push_back(user->dhost);
4332 params.push_back(user->ident);
4333 params.push_back("+"+std::string(user->FormatModes()));
4334 params.push_back(user->GetIPString());
4335 params.push_back(":"+std::string(user->fullname));
4336 DoOneToMany(ServerInstance->Config->ServerName,"NICK",params);
4338 // User is Local, change needs to be reflected!
4339 TreeServer* SourceServer = FindServer(user->server);
4342 SourceServer->AddUserCount();
4348 virtual void OnUserQuit(userrec* user, const std::string &reason)
4350 if ((IS_LOCAL(user)) && (user->registered == REG_ALL))
4352 std::deque<std::string> params;
4353 params.push_back(":"+reason);
4354 DoOneToMany(user->nick,"QUIT",params);
4356 // Regardless, We need to modify the user Counts..
4357 TreeServer* SourceServer = FindServer(user->server);
4360 SourceServer->DelUserCount();
4365 virtual void OnUserPostNick(userrec* user, const std::string &oldnick)
4369 std::deque<std::string> params;
4370 params.push_back(user->nick);
4371 DoOneToMany(oldnick,"NICK",params);
4375 virtual void OnUserKick(userrec* source, userrec* user, chanrec* chan, const std::string &reason)
4377 if ((source) && (IS_LOCAL(source)))
4379 std::deque<std::string> params;
4380 params.push_back(chan->name);
4381 params.push_back(user->nick);
4382 params.push_back(":"+reason);
4383 DoOneToMany(source->nick,"KICK",params);
4387 std::deque<std::string> params;
4388 params.push_back(chan->name);
4389 params.push_back(user->nick);
4390 params.push_back(":"+reason);
4391 DoOneToMany(ServerInstance->Config->ServerName,"KICK",params);
4395 virtual void OnRemoteKill(userrec* source, userrec* dest, const std::string &reason)
4397 std::deque<std::string> params;
4398 params.push_back(dest->nick);
4399 params.push_back(":"+reason);
4400 DoOneToMany(source->nick,"KILL",params);
4403 virtual void OnRehash(const std::string ¶meter)
4405 if (parameter != "")
4407 std::deque<std::string> params;
4408 params.push_back(parameter);
4409 DoOneToMany(ServerInstance->Config->ServerName,"REHASH",params);
4411 if (ServerInstance->MatchText(ServerInstance->Config->ServerName,parameter))
4413 ServerInstance->WriteOpers("*** Remote rehash initiated from server \002%s\002",ServerInstance->Config->ServerName);
4414 ServerInstance->RehashServer();
4417 ReadConfiguration(false);
4420 // note: the protocol does not allow direct umode +o except
4421 // via NICK with 8 params. sending OPERTYPE infers +o modechange
4423 virtual void OnOper(userrec* user, const std::string &opertype)
4427 std::deque<std::string> params;
4428 params.push_back(opertype);
4429 DoOneToMany(user->nick,"OPERTYPE",params);
4433 void OnLine(userrec* source, const std::string &host, bool adding, char linetype, long duration, const std::string &reason)
4435 if (IS_LOCAL(source))
4438 snprintf(type,8,"%cLINE",linetype);
4439 std::string stype = type;
4442 char sduration[MAXBUF];
4443 snprintf(sduration,MAXBUF,"%ld",duration);
4444 std::deque<std::string> params;
4445 params.push_back(host);
4446 params.push_back(sduration);
4447 params.push_back(":"+reason);
4448 DoOneToMany(source->nick,stype,params);
4452 std::deque<std::string> params;
4453 params.push_back(host);
4454 DoOneToMany(source->nick,stype,params);
4459 virtual void OnAddGLine(long duration, userrec* source, const std::string &reason, const std::string &hostmask)
4461 OnLine(source,hostmask,true,'G',duration,reason);
4464 virtual void OnAddZLine(long duration, userrec* source, const std::string &reason, const std::string &ipmask)
4466 OnLine(source,ipmask,true,'Z',duration,reason);
4469 virtual void OnAddQLine(long duration, userrec* source, const std::string &reason, const std::string &nickmask)
4471 OnLine(source,nickmask,true,'Q',duration,reason);
4474 virtual void OnAddELine(long duration, userrec* source, const std::string &reason, const std::string &hostmask)
4476 OnLine(source,hostmask,true,'E',duration,reason);
4479 virtual void OnDelGLine(userrec* source, const std::string &hostmask)
4481 OnLine(source,hostmask,false,'G',0,"");
4484 virtual void OnDelZLine(userrec* source, const std::string &ipmask)
4486 OnLine(source,ipmask,false,'Z',0,"");
4489 virtual void OnDelQLine(userrec* source, const std::string &nickmask)
4491 OnLine(source,nickmask,false,'Q',0,"");
4494 virtual void OnDelELine(userrec* source, const std::string &hostmask)
4496 OnLine(source,hostmask,false,'E',0,"");
4499 virtual void OnMode(userrec* user, void* dest, int target_type, const std::string &text)
4501 if ((IS_LOCAL(user)) && (user->registered == REG_ALL))
4503 if (target_type == TYPE_USER)
4505 userrec* u = (userrec*)dest;
4506 std::deque<std::string> params;
4507 params.push_back(u->nick);
4508 params.push_back(text);
4509 DoOneToMany(user->nick,"MODE",params);
4513 chanrec* c = (chanrec*)dest;
4514 std::deque<std::string> params;
4515 params.push_back(c->name);
4516 params.push_back(text);
4517 DoOneToMany(user->nick,"MODE",params);
4522 virtual void OnSetAway(userrec* user)
4526 std::deque<std::string> params;
4527 params.push_back(":"+std::string(user->awaymsg));
4528 DoOneToMany(user->nick,"AWAY",params);
4532 virtual void OnCancelAway(userrec* user)
4536 std::deque<std::string> params;
4538 DoOneToMany(user->nick,"AWAY",params);
4542 virtual void ProtoSendMode(void* opaque, int target_type, void* target, const std::string &modeline)
4544 TreeSocket* s = (TreeSocket*)opaque;
4547 if (target_type == TYPE_USER)
4549 userrec* u = (userrec*)target;
4550 s->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" FMODE "+u->nick+" "+ConvToStr(u->age)+" "+modeline);
4554 chanrec* c = (chanrec*)target;
4555 s->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" FMODE "+c->name+" "+ConvToStr(c->age)+" "+modeline);
4560 virtual void ProtoSendMetaData(void* opaque, int target_type, void* target, const std::string &extname, const std::string &extdata)
4562 TreeSocket* s = (TreeSocket*)opaque;
4565 if (target_type == TYPE_USER)
4567 userrec* u = (userrec*)target;
4568 s->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" METADATA "+u->nick+" "+extname+" :"+extdata);
4570 else if (target_type == TYPE_OTHER)
4572 s->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" METADATA * "+extname+" :"+extdata);
4574 else if (target_type == TYPE_CHANNEL)
4576 chanrec* c = (chanrec*)target;
4577 s->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" METADATA "+c->name+" "+extname+" :"+extdata);
4582 virtual void OnEvent(Event* event)
4584 if (event->GetEventID() == "send_metadata")
4586 std::deque<std::string>* params = (std::deque<std::string>*)event->GetData();
4587 if (params->size() < 3)
4589 (*params)[2] = ":" + (*params)[2];
4590 DoOneToMany(ServerInstance->Config->ServerName,"METADATA",*params);
4592 else if (event->GetEventID() == "send_mode")
4594 std::deque<std::string>* params = (std::deque<std::string>*)event->GetData();
4595 if (params->size() < 2)
4597 // Insert the TS value of the object, either userrec or chanrec
4599 userrec* a = ServerInstance->FindNick((*params)[0]);
4606 chanrec* a = ServerInstance->FindChan((*params)[0]);
4612 params->insert(params->begin() + 1,ConvToStr(ourTS));
4613 DoOneToMany(ServerInstance->Config->ServerName,"FMODE",*params);
4617 virtual ~ModuleSpanningTree()
4621 virtual Version GetVersion()
4623 return Version(1,0,0,0,VF_STATIC|VF_VENDOR);
4626 void Implements(char* List)
4628 List[I_OnPreCommand] = List[I_OnGetServerDescription] = List[I_OnUserInvite] = List[I_OnPostLocalTopicChange] = 1;
4629 List[I_OnWallops] = List[I_OnUserNotice] = List[I_OnUserMessage] = List[I_OnBackgroundTimer] = 1;
4630 List[I_OnUserJoin] = List[I_OnChangeHost] = List[I_OnChangeName] = List[I_OnUserPart] = List[I_OnUserConnect] = 1;
4631 List[I_OnUserQuit] = List[I_OnUserPostNick] = List[I_OnUserKick] = List[I_OnRemoteKill] = List[I_OnRehash] = 1;
4632 List[I_OnOper] = List[I_OnAddGLine] = List[I_OnAddZLine] = List[I_OnAddQLine] = List[I_OnAddELine] = 1;
4633 List[I_OnDelGLine] = List[I_OnDelZLine] = List[I_OnDelQLine] = List[I_OnDelELine] = List[I_ProtoSendMode] = List[I_OnMode] = 1;
4634 List[I_OnStats] = List[I_ProtoSendMetaData] = List[I_OnEvent] = List[I_OnSetAway] = List[I_OnCancelAway] = 1;
4637 /* It is IMPORTANT that m_spanningtree is the last module in the chain
4638 * so that any activity it sees is FINAL, e.g. we arent going to send out
4639 * a NICK message before m_cloaking has finished putting the +x on the user,
4641 * Therefore, we return PRIORITY_LAST to make sure we end up at the END of
4642 * the module call queue.
4644 Priority Prioritize()
4646 return PRIORITY_LAST;
4651 class ModuleSpanningTreeFactory : public ModuleFactory
4654 ModuleSpanningTreeFactory()
4658 ~ModuleSpanningTreeFactory()
4662 virtual Module * CreateModule(InspIRCd* Me)
4664 TreeProtocolModule = new ModuleSpanningTree(Me);
4665 return TreeProtocolModule;
4671 extern "C" void * init_module( void )
4673 return new ModuleSpanningTreeFactory;