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"
34 #include "helperfuncs.h"
36 #include "inspstring.h"
41 #include "cull_list.h"
45 #define nspace __gnu_cxx
51 * The server list in InspIRCd is maintained as two structures
52 * which hold the data in different ways. Most of the time, we
53 * want to very quicky obtain three pieces of information:
55 * (1) The information on a server
56 * (2) The information on the server we must send data through
57 * to actually REACH the server we're after
58 * (3) Potentially, the child/parent objects of this server
60 * The InspIRCd spanning protocol provides easy access to these
61 * by storing the data firstly in a recursive structure, where
62 * each item references its parent item, and a dynamic list
63 * of child items, and another structure which stores the items
64 * hashed, linearly. This means that if we want to find a server
65 * by name quickly, we can look it up in the hash, avoiding
66 * any O(n) lookups. If however, during a split or sync, we want
67 * to apply an operation to a server, and any of its child objects
68 * we can resort to recursion to walk the tree structure.
71 class ModuleSpanningTree;
72 static ModuleSpanningTree* TreeProtocolModule;
74 extern ServerConfig* Config;
75 extern InspIRCd* ServerInstance;
76 extern std::vector<Module*> modules;
77 extern std::vector<ircd_module*> factory;
80 /* Any socket can have one of five states at any one time.
81 * The LISTENER state indicates a socket which is listening
82 * for connections. It cannot receive data itself, only incoming
84 * The CONNECTING state indicates an outbound socket which is
85 * waiting to be writeable.
86 * The WAIT_AUTH_1 state indicates the socket is outbound and
87 * has successfully connected, but has not yet sent and received
89 * The WAIT_AUTH_2 state indicates that the socket is inbound
90 * (allocated by a LISTENER) but has not yet sent and received
92 * The CONNECTED state represents a fully authorized, fully
95 enum ServerState { LISTENER, CONNECTING, WAIT_AUTH_1, WAIT_AUTH_2, CONNECTED };
97 /* We need to import these from the core for use in netbursts */
98 extern user_hash clientlist;
99 extern chan_hash chanlist;
101 /* Foward declarations */
105 /* This variable represents the root of the server tree
106 * (for all intents and purposes, it's us)
108 TreeServer *TreeRoot;
112 /* This hash_map holds the hash equivalent of the server
113 * tree, used for rapid linear lookups.
115 typedef nspace::hash_map<std::string, TreeServer*, nspace::hash<string>, irc::StrHashComp> server_hash;
116 server_hash serverlist;
118 /* More forward declarations */
119 bool DoOneToOne(std::string prefix, std::string command, std::deque<std::string> ¶ms, std::string target);
120 bool DoOneToAllButSender(std::string prefix, std::string command, std::deque<std::string> ¶ms, std::string omit);
121 bool DoOneToMany(std::string prefix, std::string command, std::deque<std::string> ¶ms);
122 bool DoOneToAllButSenderRaw(std::string data, std::string omit, std::string prefix, irc::string command, std::deque<std::string> ¶ms);
123 void ReadConfiguration(bool rebind);
125 /* Flatten links and /MAP for non-opers */
127 /* Hide U-Lined servers in /MAP and /LINKS */
130 /* Imported from xline.cpp for use during netburst */
131 extern std::vector<KLine> klines;
132 extern std::vector<GLine> glines;
133 extern std::vector<ZLine> zlines;
134 extern std::vector<QLine> qlines;
135 extern std::vector<ELine> elines;
136 extern std::vector<KLine> pklines;
137 extern std::vector<GLine> pglines;
138 extern std::vector<ZLine> pzlines;
139 extern std::vector<QLine> pqlines;
140 extern std::vector<ELine> pelines;
142 /* Each server in the tree is represented by one class of
143 * type TreeServer. A locally connected TreeServer can
144 * have a class of type TreeSocket associated with it, for
145 * remote servers, the TreeSocket entry will be NULL.
146 * Each server also maintains a pointer to its parent
147 * (NULL if this server is ours, at the top of the tree)
148 * and a pointer to its "Route" (see the comments in the
149 * constructors below), and also a dynamic list of pointers
150 * to its children which can be iterated recursively
151 * if required. Creating or deleting objects of type
152 i* TreeServer automatically maintains the hash_map of
153 * TreeServer items, deleting and inserting them as they
154 * are created and destroyed.
159 TreeServer* Parent; /* Parent entry */
160 TreeServer* Route; /* Route entry */
161 std::vector<TreeServer*> Children; /* List of child objects */
162 irc::string ServerName; /* Server's name */
163 std::string ServerDesc; /* Server's description */
164 std::string VersionString; /* Version string or empty string */
165 int UserCount; /* Not used in this version */
166 int OperCount; /* Not used in this version */
167 TreeSocket* Socket; /* For directly connected servers this points at the socket object */
168 time_t NextPing; /* After this time, the server should be PINGed*/
169 bool LastPingWasGood; /* True if the server responded to the last PING with a PONG */
170 std::map<userrec*,userrec*> Users; /* Users on this server */
171 bool DontModifyHash; /* When the server is splitting, this is set to true so we dont bash our own iterator to death */
175 /* We don't use this constructor. Its a dummy, and won't cause any insertion
176 * of the TreeServer into the hash_map. See below for the two we DO use.
184 UserCount = OperCount = 0;
185 VersionString = Srv->GetVersion();
186 DontModifyHash = false;
189 /* We use this constructor only to create the 'root' item, TreeRoot, which
190 * represents our own server. Therefore, it has no route, no parent, and
191 * no socket associated with it. Its version string is our own local version.
193 TreeServer(std::string Name, std::string Desc) : ServerName(Name.c_str()), ServerDesc(Desc)
197 UserCount = OperCount = 0;
198 VersionString = Srv->GetVersion();
200 Socket = NULL; /* Fix by brain */
201 DontModifyHash = false;
205 /* When we create a new server, we call this constructor to initialize it.
206 * This constructor initializes the server's Route and Parent, and sets up
207 * its ping counters so that it will be pinged one minute from now.
209 TreeServer(std::string Name, std::string Desc, TreeServer* Above, TreeSocket* Sock) : Parent(Above), ServerName(Name.c_str()), ServerDesc(Desc), Socket(Sock)
212 UserCount = OperCount = 0;
213 DontModifyHash = false;
214 this->SetNextPingTime(time(NULL) + 120);
217 /* find the 'route' for this server (e.g. the one directly connected
218 * to the local server, which we can use to reach it)
220 * In the following example, consider we have just added a TreeServer
221 * class for server G on our network, of which we are server A.
222 * To route traffic to G (marked with a *) we must send the data to
223 * B (marked with a +) so this algorithm initializes the 'Route'
224 * value to point at whichever server traffic must be routed through
225 * to get here. If we were to try this algorithm with server B,
226 * the Route pointer would point at its own object ('this').
236 * We only run this algorithm when a server is created, as
237 * the routes remain constant while ever the server exists, and
238 * do not need to be re-calculated.
242 if (Route == TreeRoot)
248 while (this->Route->GetParent() != TreeRoot)
250 this->Route = Route->GetParent();
254 /* Because recursive code is slow and takes a lot of resources,
255 * we store two representations of the server tree. The first
256 * is a recursive structure where each server references its
257 * children and its parent, which is used for netbursts and
258 * netsplits to dump the whole dataset to the other server,
259 * and the second is used for very fast lookups when routing
260 * messages and is instead a hash_map, where each item can
261 * be referenced by its server name. The AddHashEntry()
262 * call below automatically inserts each TreeServer class
263 * into the hash_map as it is created. There is a similar
264 * maintainance call in the destructor to tidy up deleted
268 this->AddHashEntry();
271 void AddUser(userrec* user)
273 if (this->DontModifyHash)
275 log(DEBUG,"Not modifying hash");
279 log(DEBUG,"Add user %s to server %s",user->nick,this->ServerName.c_str());
280 std::map<userrec*,userrec*>::iterator iter;
281 iter = Users.find(user);
282 if (iter == Users.end())
286 void DelUser(userrec* user)
289 * Quitting the user in QuitUsers changes the hash by removing the user here,
290 * corrupting the iterator!
291 * When netsplitting, this->DontModifyHash is set to prevent it now!
293 if (this->DontModifyHash)
295 log(DEBUG,"Not modifying hash");
299 log(DEBUG,"Remove user %s from server %s",user->nick,this->ServerName.c_str());
300 std::map<userrec*,userrec*>::iterator iter;
301 iter = Users.find(user);
302 if (iter != Users.end())
306 int QuitUsers(const std::string &reason)
308 int x = Users.size();
309 log(DEBUG,"Removing %d users from server %s",x,this->ServerName.c_str());
310 const char* reason_s = reason.c_str();
311 this->DontModifyHash = true;
312 for (std::map<userrec*,userrec*>::iterator n = Users.begin(); n != Users.end(); n++)
314 log(DEBUG,"Kill %s fd=%d",n->second->nick,n->second->fd);
315 if (!IS_LOCAL(n->second))
316 kill_link(n->second,reason_s);
319 this->DontModifyHash = false;
323 /* This method is used to add the structure to the
324 * hash_map for linear searches. It is only called
325 * by the constructors.
329 server_hash::iterator iter;
330 iter = serverlist.find(this->ServerName.c_str());
331 if (iter == serverlist.end())
332 serverlist[this->ServerName.c_str()] = this;
335 /* This method removes the reference to this object
336 * from the hash_map which is used for linear searches.
337 * It is only called by the default destructor.
341 server_hash::iterator iter;
342 iter = serverlist.find(this->ServerName.c_str());
343 if (iter != serverlist.end())
344 serverlist.erase(iter);
347 /* These accessors etc should be pretty self-
351 TreeServer* GetRoute()
356 std::string GetName()
358 return ServerName.c_str();
361 std::string GetDesc()
366 std::string GetVersion()
368 return VersionString;
371 void SetNextPingTime(time_t t)
374 LastPingWasGood = false;
377 time_t NextPingTime()
382 bool AnsweredLastPing()
384 return LastPingWasGood;
389 LastPingWasGood = true;
412 TreeSocket* GetSocket()
417 TreeServer* GetParent()
422 void SetVersion(std::string Version)
424 VersionString = Version;
427 unsigned int ChildCount()
429 return Children.size();
432 TreeServer* GetChild(unsigned int n)
434 if (n < Children.size())
436 /* Make sure they cant request
437 * an out-of-range object. After
438 * all we know what these programmer
439 * types are like *grin*.
449 void AddChild(TreeServer* Child)
451 Children.push_back(Child);
454 bool DelChild(TreeServer* Child)
456 for (std::vector<TreeServer*>::iterator a = Children.begin(); a < Children.end(); a++)
467 /* Removes child nodes of this node, and of that node, etc etc.
468 * This is used during netsplits to automatically tidy up the
469 * server tree. It is slow, we don't use it for much else.
473 bool stillchildren = true;
474 while (stillchildren)
476 stillchildren = false;
477 for (std::vector<TreeServer*>::iterator a = Children.begin(); a < Children.end(); a++)
479 TreeServer* s = (TreeServer*)*a;
483 stillchildren = true;
492 /* We'd better tidy up after ourselves, eh? */
493 this->DelHashEntry();
497 /* The Link class might as well be a struct,
498 * but this is C++ and we don't believe in structs (!).
499 * It holds the entire information of one <link>
500 * tag from the main config file. We maintain a list
501 * of them, and populate the list on rehash/load.
510 std::string SendPass;
511 std::string RecvPass;
512 unsigned long AutoConnect;
513 time_t NextConnectTime;
514 std::string EncryptionKey;
515 bool HiddenFromStats;
518 /* The usual stuff for inspircd modules,
519 * plus the vector of Link classes which we
520 * use to store the <link> tags from the config
524 std::vector<Link> LinkBlocks;
526 /* Yay for fast searches!
527 * This is hundreds of times faster than recursion
528 * or even scanning a linked list, especially when
529 * there are more than a few servers to deal with.
532 TreeServer* FindServer(std::string ServerName)
534 server_hash::iterator iter;
535 iter = serverlist.find(ServerName.c_str());
536 if (iter != serverlist.end())
546 /* Returns the locally connected server we must route a
547 * message through to reach server 'ServerName'. This
548 * only applies to one-to-one and not one-to-many routing.
549 * See the comments for the constructor of TreeServer
552 TreeServer* BestRouteTo(std::string ServerName)
554 if (ServerName.c_str() == TreeRoot->GetName())
556 TreeServer* Found = FindServer(ServerName);
559 return Found->GetRoute();
567 /* Find the first server matching a given glob mask.
568 * Theres no find-using-glob method of hash_map [awwww :-(]
569 * so instead, we iterate over the list using an iterator
570 * and match each one until we get a hit. Yes its slow,
573 TreeServer* FindServerMask(std::string ServerName)
575 for (server_hash::iterator i = serverlist.begin(); i != serverlist.end(); i++)
577 if (Srv->MatchText(i->first.c_str(),ServerName))
583 /* A convenient wrapper that returns true if a server exists */
584 bool IsServer(std::string ServerName)
586 return (FindServer(ServerName) != NULL);
590 class cmd_rconnect : public command_t
594 cmd_rconnect (Module* Callback) : command_t("RCONNECT", 'o', 2), Creator(Callback)
596 this->source = "m_spanningtree.so";
599 void Handle (char **parameters, int pcnt, userrec *user)
601 WriteServ(user->fd,"NOTICE %s :*** RCONNECT: Sending remote connect to \002%s\002 to connect server \002%s\002.",user->nick,parameters[0],parameters[1]);
602 /* Is this aimed at our server? */
603 if (Srv->MatchText(Srv->GetServerName(),parameters[0]))
605 /* Yes, initiate the given connect */
606 WriteOpers("*** Remote CONNECT from %s matching \002%s\002, connecting server \002%s\002",user->nick,parameters[0],parameters[1]);
608 para[0] = parameters[1];
609 Creator->OnPreCommand("CONNECT", para, 1, user, true);
616 /* Every SERVER connection inbound or outbound is represented by
617 * an object of type TreeSocket.
618 * TreeSockets, being inherited from InspSocket, can be tied into
619 * the core socket engine, and we cn therefore receive activity events
620 * for them, just like activex objects on speed. (yes really, that
621 * is a technical term!) Each of these which relates to a locally
622 * connected server is assocated with it, by hooking it onto a
623 * TreeSocket class using its constructor. In this way, we can
624 * maintain a list of servers, some of which are directly connected,
625 * some of which are not.
628 class TreeSocket : public InspSocket
631 std::string in_buffer;
632 ServerState LinkState;
633 std::string InboundServerName;
634 std::string InboundDescription;
636 int num_lost_servers;
638 bool LastPingWasGood;
642 unsigned int keylength;
646 /* Because most of the I/O gubbins are encapsulated within
647 * InspSocket, we just call the superclass constructor for
648 * most of the action, and append a few of our own values
651 TreeSocket(std::string host, int port, bool listening, unsigned long maxtime)
652 : InspSocket(host, port, listening, maxtime)
655 this->LinkState = LISTENER;
657 this->ctx_out = NULL;
660 TreeSocket(std::string host, int port, bool listening, unsigned long maxtime, std::string ServerName)
661 : InspSocket(host, port, listening, maxtime)
664 this->LinkState = CONNECTING;
666 this->ctx_out = NULL;
669 /* When a listening socket gives us a new file descriptor,
670 * we must associate it with a socket without creating a new
671 * connection. This constructor is used for this purpose.
673 TreeSocket(int newfd, char* ip)
674 : InspSocket(newfd, ip)
676 this->LinkState = WAIT_AUTH_1;
678 this->ctx_out = NULL;
679 this->SendCapabilities();
690 void InitAES(std::string key,std::string SName)
697 log(DEBUG,"Initialized AES key %s",key.c_str());
698 // key must be 16, 24, 32 etc bytes (multiple of 8)
699 keylength = key.length();
700 if (!(keylength == 16 || keylength == 24 || keylength == 32))
702 WriteOpers("*** \2ERROR\2: Key length for encryptionkey is not 16, 24 or 32 bytes in length!");
703 log(DEBUG,"Key length not 16, 24 or 32 characters!");
707 WriteOpers("*** \2AES\2: Initialized %d bit encryption to server %s",keylength*8,SName.c_str());
708 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\
709 \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);
710 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\
711 \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);
715 /* When an outbound connection finishes connecting, we receive
716 * this event, and must send our SERVER string to the other
717 * side. If the other side is happy, as outlined in the server
718 * to server docs on the inspircd.org site, the other side
719 * will then send back its own server string.
721 virtual bool OnConnected()
723 if (this->LinkState == CONNECTING)
725 /* we do not need to change state here. */
726 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
728 if (x->Name == this->myhost)
730 Srv->SendOpers("*** Connection to \2"+myhost+"\2["+(x->HiddenFromStats ? "<hidden>" : this->GetIP())+"] established.");
731 this->SendCapabilities();
732 if (x->EncryptionKey != "")
734 if (!(x->EncryptionKey.length() == 16 || x->EncryptionKey.length() == 24 || x->EncryptionKey.length() == 32))
736 WriteOpers("\2WARNING\2: Your encryption key is NOT 16, 24 or 32 characters in length, encryption will \2NOT\2 be enabled.");
740 this->WriteLine("AES "+Srv->GetServerName());
741 this->InitAES(x->EncryptionKey,x->Name.c_str());
744 /* found who we're supposed to be connecting to, send the neccessary gubbins. */
745 this->WriteLine("SERVER "+Srv->GetServerName()+" "+x->SendPass+" 0 :"+Srv->GetServerDescription());
750 /* There is a (remote) chance that between the /CONNECT and the connection
751 * being accepted, some muppet has removed the <link> block and rehashed.
752 * If that happens the connection hangs here until it's closed. Unlikely
753 * and rather harmless.
755 Srv->SendOpers("*** Connection to \2"+myhost+"\2 lost link tag(!)");
759 virtual void OnError(InspSocketError e)
761 /* We don't handle this method, because all our
762 * dirty work is done in OnClose() (see below)
763 * which is still called on error conditions too.
765 if (e == I_ERR_CONNECT)
767 Srv->SendOpers("*** Connection failed: Connection refused");
771 virtual int OnDisconnect()
773 /* For the same reason as above, we don't
774 * handle OnDisconnect()
779 /* Recursively send the server tree with distances as hops.
780 * This is used during network burst to inform the other server
781 * (and any of ITS servers too) of what servers we know about.
782 * If at any point any of these servers already exist on the other
783 * end, our connection may be terminated. The hopcounts given
784 * by this function are relative, this doesn't matter so long as
785 * they are all >1, as all the remote servers re-calculate them
786 * to be relative too, with themselves as hop 0.
788 void SendServers(TreeServer* Current, TreeServer* s, int hops)
791 for (unsigned int q = 0; q < Current->ChildCount(); q++)
793 TreeServer* recursive_server = Current->GetChild(q);
794 if (recursive_server != s)
796 snprintf(command,1024,":%s SERVER %s * %d :%s",Current->GetName().c_str(),recursive_server->GetName().c_str(),hops,recursive_server->GetDesc().c_str());
797 this->WriteLine(command);
798 this->WriteLine(":"+recursive_server->GetName()+" VERSION :"+recursive_server->GetVersion());
799 /* down to next level */
800 this->SendServers(recursive_server, s, hops+1);
805 std::string MyCapabilities()
807 ServerConfig* Config = Srv->GetConfig();
808 std::vector<std::string> modlist;
809 std::string capabilities = "";
811 for (int i = 0; i <= MODCOUNT; i++)
813 if ((modules[i]->GetVersion().Flags & VF_STATIC) || (modules[i]->GetVersion().Flags & VF_COMMON))
814 modlist.push_back(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 this->WriteLine("CAPAB "+MyCapabilities());
831 bool Capab(std::deque<std::string> params)
833 if (params.size() != 1)
835 this->WriteLine("ERROR :Invalid number of parameters for CAPAB");
839 if (params[0] != this->MyCapabilities())
841 std::string quitserver = this->myhost;
842 if (this->InboundServerName != "")
844 quitserver = this->InboundServerName;
847 WriteOpers("*** \2ERROR\2: Server '%s' does not have the same set of modules loaded, cannot link!",quitserver.c_str());
848 WriteOpers("*** Our networked module set is: '%s'",this->MyCapabilities().c_str());
849 WriteOpers("*** Other server's networked module set is: '%s'",params[0].c_str());
850 WriteOpers("*** These lists must match exactly on both servers. Please correct these errors, and try again.");
851 this->WriteLine("ERROR :CAPAB mismatch; My capabilities: '"+this->MyCapabilities()+"'");
858 /* This function forces this server to quit, removing this server
859 * and any users on it (and servers and users below that, etc etc).
860 * It's very slow and pretty clunky, but luckily unless your network
861 * is having a REAL bad hair day, this function shouldnt be called
862 * too many times a month ;-)
864 void SquitServer(std::string &from, TreeServer* Current)
866 /* recursively squit the servers attached to 'Current'.
867 * We're going backwards so we don't remove users
868 * while we still need them ;)
870 for (unsigned int q = 0; q < Current->ChildCount(); q++)
872 TreeServer* recursive_server = Current->GetChild(q);
873 this->SquitServer(from,recursive_server);
875 /* Now we've whacked the kids, whack self */
877 num_lost_users += Current->QuitUsers(from);
878 /*for (user_hash::iterator u = clientlist.begin(); u != clientlist.end(); u++)
880 if (!strcasecmp(u->second->server,Current->GetName().c_str()))
882 Goners->AddItem(u->second,from);
888 /* This is a wrapper function for SquitServer above, which
889 * does some validation first and passes on the SQUIT to all
890 * other remaining servers.
892 void Squit(TreeServer* Current,std::string reason)
894 if ((Current) && (Current != TreeRoot))
896 std::deque<std::string> params;
897 params.push_back(Current->GetName());
898 params.push_back(":"+reason);
899 DoOneToAllButSender(Current->GetParent()->GetName(),"SQUIT",params,Current->GetName());
900 if (Current->GetParent() == TreeRoot)
902 Srv->SendOpers("Server \002"+Current->GetName()+"\002 split: "+reason);
906 Srv->SendOpers("Server \002"+Current->GetName()+"\002 split from server \002"+Current->GetParent()->GetName()+"\002 with reason: "+reason);
908 num_lost_servers = 0;
910 std::string from = Current->GetParent()->GetName()+" "+Current->GetName();
911 SquitServer(from, Current);
913 Current->GetParent()->DelChild(Current);
915 WriteOpers("Netsplit complete, lost \002%d\002 users on \002%d\002 servers.", num_lost_users, num_lost_servers);
919 log(DEFAULT,"Squit from unknown server");
924 bool ForceMode(std::string source, std::deque<std::string> ¶ms)
926 if (params.size() < 2)
928 userrec* who = new userrec();
929 who->fd = FD_MAGIC_NUMBER;
931 memset(&modelist,0,sizeof(modelist));
932 for (unsigned int q = 0; q < params.size(); q++)
934 modelist[q] = (char*)params[q].c_str();
936 Srv->SendMode(modelist,params.size(),who);
937 DoOneToAllButSender(source,"FMODE",params,source);
943 bool ForceTopic(std::string source, std::deque<std::string> ¶ms)
945 if (params.size() != 4)
947 time_t ts = atoi(params[1].c_str());
948 std::string nsource = source;
950 chanrec* c = Srv->FindChannel(params[0]);
953 if ((ts >= c->topicset) || (!*c->topic))
955 std::string oldtopic = c->topic;
956 strlcpy(c->topic,params[3].c_str(),MAXTOPIC);
957 strlcpy(c->setby,params[2].c_str(),NICKMAX-1);
959 /* if the topic text is the same as the current topic,
960 * dont bother to send the TOPIC command out, just silently
961 * update the set time and set nick.
963 if (oldtopic != params[3])
965 userrec* user = Srv->FindNick(source);
968 WriteChannelWithServ((char*)source.c_str(), c, "TOPIC %s :%s", c->name, c->topic);
972 WriteChannel(c, user, "TOPIC %s :%s", c->name, c->topic);
973 nsource = user->server;
975 /* all done, send it on its way */
976 params[3] = ":" + params[3];
977 DoOneToAllButSender(source,"FTOPIC",params,nsource);
986 /* FJOIN, similar to unreal SJOIN */
987 bool ForceJoin(std::string source, std::deque<std::string> ¶ms)
989 if (params.size() < 3)
993 char modestring[MAXBUF];
994 char* mode_users[127];
995 memset(&mode_users,0,sizeof(mode_users));
996 mode_users[0] = first;
997 mode_users[1] = modestring;
998 strcpy(mode_users[1],"+");
999 unsigned int modectr = 2;
1001 userrec* who = NULL;
1002 std::string channel = params[0];
1003 time_t TS = atoi(params[1].c_str());
1006 chanrec* chan = Srv->FindChannel(channel);
1011 strlcpy(mode_users[0],channel.c_str(),MAXBUF);
1013 /* default is a high value, which if we dont have this
1014 * channel will let the other side apply their modes.
1016 time_t ourTS = time(NULL)+600;
1017 chanrec* us = Srv->FindChannel(channel);
1023 log(DEBUG,"FJOIN detected, our TS=%lu, their TS=%lu",ourTS,TS);
1025 /* do this first, so our mode reversals are correctly received by other servers
1026 * if there is a TS collision.
1028 DoOneToAllButSender(source,"FJOIN",params,source);
1030 for (unsigned int usernum = 2; usernum < params.size(); usernum++)
1032 /* process one channel at a time, applying modes. */
1033 char* usr = (char*)params[usernum].c_str();
1034 /* Safety check just to make sure someones not sent us an FJOIN full of spaces
1035 * (is this even possible?) */
1038 char permissions = *usr;
1039 switch (permissions)
1043 mode_users[modectr++] = usr;
1044 strlcat(modestring,"o",MAXBUF);
1048 mode_users[modectr++] = usr;
1049 strlcat(modestring,"h",MAXBUF);
1053 mode_users[modectr++] = usr;
1054 strlcat(modestring,"v",MAXBUF);
1057 who = Srv->FindNick(usr);
1060 Srv->JoinUserToChannel(who,channel,key);
1061 if (modectr >= (MAXMODES-1))
1063 /* theres a mode for this user. push them onto the mode queue, and flush it
1064 * if there are more than MAXMODES to go.
1066 if ((ourTS >= TS) || (Srv->IsUlined(who->server)))
1068 /* We also always let u-lined clients win, no matter what the TS value */
1069 log(DEBUG,"Our our channel newer than theirs, accepting their modes");
1070 Srv->SendMode(mode_users,modectr,who);
1074 log(DEBUG,"Their channel newer than ours, bouncing their modes");
1075 /* bouncy bouncy! */
1076 std::deque<std::string> params;
1077 /* modes are now being UNSET... */
1078 *mode_users[1] = '-';
1079 for (unsigned int x = 0; x < modectr; x++)
1081 params.push_back(mode_users[x]);
1083 // tell everyone to bounce the modes. bad modes, bad!
1084 DoOneToMany(Srv->GetServerName(),"FMODE",params);
1086 strcpy(mode_users[1],"+");
1092 /* there werent enough modes built up to flush it during FJOIN,
1093 * or, there are a number left over. flush them out.
1095 if ((modectr > 2) && (who))
1099 log(DEBUG,"Our our channel newer than theirs, accepting their modes");
1100 Srv->SendMode(mode_users,modectr,who);
1104 log(DEBUG,"Their channel newer than ours, bouncing their modes");
1105 std::deque<std::string> params;
1106 *mode_users[1] = '-';
1107 for (unsigned int x = 0; x < modectr; x++)
1109 params.push_back(mode_users[x]);
1111 DoOneToMany(Srv->GetServerName(),"FMODE",params);
1117 bool SyncChannelTS(std::string source, std::deque<std::string> ¶ms)
1119 if (params.size() == 2)
1121 chanrec* c = Srv->FindChannel(params[0]);
1124 time_t theirTS = atoi(params[1].c_str());
1125 time_t ourTS = c->age;
1126 if (ourTS >= theirTS)
1128 log(DEBUG,"Updating timestamp for %s, our timestamp was %lu and theirs is %lu",c->name,ourTS,theirTS);
1133 DoOneToAllButSender(Srv->GetServerName(),"SYNCTS",params,source);
1138 bool IntroduceClient(std::string source, std::deque<std::string> ¶ms)
1140 if (params.size() < 8)
1142 if (params.size() > 8)
1144 this->WriteLine(":"+Srv->GetServerName()+" KILL "+params[1]+" :Invalid client introduction ("+params[1]+"?)");
1147 // NICK age nick host dhost ident +modes ip :gecos
1149 time_t age = atoi(params[0].c_str());
1150 std::string modes = params[5];
1151 while (*(modes.c_str()) == '+')
1153 char* m = (char*)modes.c_str();
1157 char* tempnick = (char*)params[1].c_str();
1158 log(DEBUG,"Introduce client %s!%s@%s",tempnick,params[4].c_str(),params[2].c_str());
1160 user_hash::iterator iter;
1161 iter = clientlist.find(tempnick);
1162 if (iter != clientlist.end())
1165 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);
1166 this->WriteLine(":"+Srv->GetServerName()+" KILL "+tempnick+" :Nickname collision");
1170 clientlist[tempnick] = new userrec();
1171 clientlist[tempnick]->fd = FD_MAGIC_NUMBER;
1172 strlcpy(clientlist[tempnick]->nick, tempnick,NICKMAX-1);
1173 strlcpy(clientlist[tempnick]->host, params[2].c_str(),63);
1174 strlcpy(clientlist[tempnick]->dhost, params[3].c_str(),63);
1175 clientlist[tempnick]->server = (char*)FindServerNamePtr(source.c_str());
1176 strlcpy(clientlist[tempnick]->ident, params[4].c_str(),IDENTMAX);
1177 strlcpy(clientlist[tempnick]->fullname, params[7].c_str(),MAXGECOS);
1178 clientlist[tempnick]->registered = 7;
1179 clientlist[tempnick]->signon = age;
1180 strlcpy(clientlist[tempnick]->modes, modes.c_str(),53);
1181 for (char *v = clientlist[tempnick]->modes; *v; v++)
1186 clientlist[tempnick]->modebits |= UM_INVISIBLE;
1189 clientlist[tempnick]->modebits |= UM_WALLOPS;
1192 clientlist[tempnick]->modebits |= UM_SERVERNOTICE;
1198 inet_aton(params[6].c_str(),&clientlist[tempnick]->ip4);
1200 WriteOpers("*** Client connecting at %s: %s!%s@%s [%s]",clientlist[tempnick]->server,clientlist[tempnick]->nick,clientlist[tempnick]->ident,clientlist[tempnick]->host,(char*)inet_ntoa(clientlist[tempnick]->ip4));
1202 params[7] = ":" + params[7];
1203 DoOneToAllButSender(source,"NICK",params,source);
1205 // Increment the Source Servers User Count..
1206 TreeServer* SourceServer = FindServer(source);
1209 log(DEBUG,"Found source server of %s",clientlist[tempnick]->nick);
1210 SourceServer->AddUser(clientlist[tempnick]);
1211 SourceServer->AddUserCount();
1217 /* Send one or more FJOINs for a channel of users.
1218 * If the length of a single line is more than 480-NICKMAX
1219 * in length, it is split over multiple lines.
1221 void SendFJoins(TreeServer* Current, chanrec* c)
1223 log(DEBUG,"Sending FJOINs to other server for %s",c->name);
1225 std::string individual_halfops = ":"+Srv->GetServerName()+" FMODE "+c->name;
1227 size_t dlen, curlen;
1228 dlen = curlen = snprintf(list,MAXBUF,":%s FJOIN %s %lu",Srv->GetServerName().c_str(),c->name,(unsigned long)c->age);
1230 char* ptr = list + dlen;
1232 CUList *ulist = c->GetUsers();
1233 std::vector<userrec*> specific_halfop;
1234 std::vector<userrec*> specific_voice;
1236 for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
1238 int x = cflags(i->second,c);
1239 if ((x & UCMODE_HOP) && (x & UCMODE_OP))
1241 specific_halfop.push_back(i->second);
1243 if (((x & UCMODE_HOP) || (x & UCMODE_OP)) && (x & UCMODE_VOICE))
1245 specific_voice.push_back(i->second);
1253 else if (x & UCMODE_HOP)
1257 else if (x & UCMODE_VOICE)
1262 size_t ptrlen = snprintf(ptr, MAXBUF, " %s%s", n, i->second->nick);
1269 if (curlen > (480-NICKMAX))
1271 this->WriteLine(list);
1272 dlen = curlen = snprintf(list,MAXBUF,":%s FJOIN %s %lu",Srv->GetServerName().c_str(),c->name,(unsigned long)c->age);
1276 for (unsigned int y = 0; y < specific_voice.size(); y++)
1278 this->WriteLine(":"+Srv->GetServerName()+" FMODE "+c->name+" +v "+specific_voice[y]->nick);
1280 for (unsigned int y = 0; y < specific_halfop.size(); y++)
1282 this->WriteLine(":"+Srv->GetServerName()+" FMODE "+c->name+" +h "+specific_halfop[y]->nick);
1288 this->WriteLine(list);
1289 for (unsigned int y = 0; y < specific_voice.size(); y++)
1291 this->WriteLine(":"+Srv->GetServerName()+" FMODE "+c->name+" +v "+specific_voice[y]->nick);
1293 for (unsigned int y = 0; y < specific_halfop.size(); y++)
1295 this->WriteLine(":"+Srv->GetServerName()+" FMODE "+c->name+" +h "+specific_halfop[y]->nick);
1298 this->WriteLine(":"+Srv->GetServerName()+" SYNCTS "+c->name+" "+ConvToStr(c->age));
1301 /* Send G, Q, Z and E lines */
1302 void SendXLines(TreeServer* Current)
1305 std::string n = Srv->GetServerName();
1306 const char* sn = n.c_str();
1308 /* Yes, these arent too nice looking, but they get the job done */
1309 for (std::vector<ZLine>::iterator i = zlines.begin(); i != zlines.end(); i++, iterations++)
1311 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);
1312 this->WriteLine(data);
1314 for (std::vector<QLine>::iterator i = qlines.begin(); i != qlines.end(); i++, iterations++)
1316 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);
1317 this->WriteLine(data);
1319 for (std::vector<GLine>::iterator i = glines.begin(); i != glines.end(); i++, iterations++)
1321 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);
1322 this->WriteLine(data);
1324 for (std::vector<ELine>::iterator i = elines.begin(); i != elines.end(); i++, iterations++)
1326 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);
1327 this->WriteLine(data);
1329 for (std::vector<ZLine>::iterator i = pzlines.begin(); i != pzlines.end(); i++, iterations++)
1331 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);
1332 this->WriteLine(data);
1334 for (std::vector<QLine>::iterator i = pqlines.begin(); i != pqlines.end(); i++, iterations++)
1336 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);
1337 this->WriteLine(data);
1339 for (std::vector<GLine>::iterator i = pglines.begin(); i != pglines.end(); i++, iterations++)
1341 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);
1342 this->WriteLine(data);
1344 for (std::vector<ELine>::iterator i = pelines.begin(); i != pelines.end(); i++, iterations++)
1346 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);
1347 this->WriteLine(data);
1351 /* Send channel modes and topics */
1352 void SendChannelModes(TreeServer* Current)
1355 std::deque<std::string> list;
1357 std::string n = Srv->GetServerName();
1358 const char* sn = n.c_str();
1359 for (chan_hash::iterator c = chanlist.begin(); c != chanlist.end(); c++, iterations++)
1361 SendFJoins(Current, c->second);
1362 snprintf(data,MAXBUF,":%s FMODE %s +%s",sn,c->second->name,chanmodes(c->second,true));
1363 this->WriteLine(data);
1364 if (*c->second->topic)
1366 snprintf(data,MAXBUF,":%s FTOPIC %s %lu %s :%s",sn,c->second->name,(unsigned long)c->second->topicset,c->second->setby,c->second->topic);
1367 this->WriteLine(data);
1369 for (BanList::iterator b = c->second->bans.begin(); b != c->second->bans.end(); b++)
1371 snprintf(data,MAXBUF,":%s FMODE %s +b %s",sn,c->second->name,b->data);
1372 this->WriteLine(data);
1374 FOREACH_MOD(I_OnSyncChannel,OnSyncChannel(c->second,(Module*)TreeProtocolModule,(void*)this));
1376 c->second->GetExtList(list);
1377 for (unsigned int j = 0; j < list.size(); j++)
1379 FOREACH_MOD(I_OnSyncChannelMetaData,OnSyncChannelMetaData(c->second,(Module*)TreeProtocolModule,(void*)this,list[j]));
1384 /* send all users and their oper state/modes */
1385 void SendUsers(TreeServer* Current)
1388 std::deque<std::string> list;
1390 for (user_hash::iterator u = clientlist.begin(); u != clientlist.end(); u++, iterations++)
1392 if (u->second->registered == 7)
1394 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->modes,(char*)inet_ntoa(u->second->ip4),u->second->fullname);
1395 this->WriteLine(data);
1396 if (*u->second->oper)
1398 this->WriteLine(":"+std::string(u->second->nick)+" OPERTYPE "+std::string(u->second->oper));
1400 if (*u->second->awaymsg)
1402 this->WriteLine(":"+std::string(u->second->nick)+" AWAY :"+std::string(u->second->awaymsg));
1404 FOREACH_MOD(I_OnSyncUser,OnSyncUser(u->second,(Module*)TreeProtocolModule,(void*)this));
1406 u->second->GetExtList(list);
1407 for (unsigned int j = 0; j < list.size(); j++)
1409 FOREACH_MOD(I_OnSyncUserMetaData,OnSyncUserMetaData(u->second,(Module*)TreeProtocolModule,(void*)this,list[j]));
1415 /* This function is called when we want to send a netburst to a local
1416 * server. There is a set order we must do this, because for example
1417 * users require their servers to exist, and channels require their
1418 * users to exist. You get the idea.
1420 void DoBurst(TreeServer* s)
1422 /* The calls here to ServerInstance-> yield the processing
1423 * back to the core so that a large burst is split into at least 6 sections
1426 std::string burst = "BURST "+ConvToStr(time(NULL));
1427 std::string endburst = "ENDBURST";
1428 // Because by the end of the netburst, it could be gone!
1429 std::string name = s->GetName();
1430 Srv->SendOpers("*** Bursting to \2"+name+"\2.");
1431 this->WriteLine(burst);
1432 /* send our version string */
1433 this->WriteLine(":"+Srv->GetServerName()+" VERSION :"+Srv->GetVersion());
1434 /* Send server tree */
1435 this->SendServers(TreeRoot,s,1);
1436 /* Send users and their oper status */
1438 /* Send everything else (channel modes, xlines etc) */
1439 this->SendChannelModes(s);
1440 this->SendXLines(s);
1441 FOREACH_MOD(I_OnSyncOtherMetaData,OnSyncOtherMetaData((Module*)TreeProtocolModule,(void*)this));
1442 this->WriteLine(endburst);
1443 Srv->SendOpers("*** Finished bursting to \2"+name+"\2.");
1446 /* This function is called when we receive data from a remote
1447 * server. We buffer the data in a std::string (it doesnt stay
1448 * there for long), reading using InspSocket::Read() which can
1449 * read up to 16 kilobytes in one operation.
1451 * IF THIS FUNCTION RETURNS FALSE, THE CORE CLOSES AND DELETES
1452 * THE SOCKET OBJECT FOR US.
1454 virtual bool OnDataReady()
1456 char* data = this->Read();
1457 /* Check that the data read is a valid pointer and it has some content */
1460 this->in_buffer.append(data);
1461 /* While there is at least one new line in the buffer,
1462 * do something useful (we hope!) with it.
1464 while (in_buffer.find("\n") != std::string::npos)
1466 std::string ret = in_buffer.substr(0,in_buffer.find("\n")-1);
1467 in_buffer = in_buffer.substr(in_buffer.find("\n")+1,in_buffer.length()-in_buffer.find("\n"));
1468 if (ret.find("\r") != std::string::npos)
1469 ret = in_buffer.substr(0,in_buffer.find("\r")-1);
1470 /* Process this one, abort if it
1471 * didnt return true.
1477 memset(result,0,1024);
1479 log(DEBUG,"Original string '%s'",ret.c_str());
1480 /* ERROR + CAPAB is still allowed unencryped */
1481 if ((ret.substr(0,7) != "ERROR :") && (ret.substr(0,6) != "CAPAB "))
1483 int nbytes = from64tobits(out, ret.c_str(), 1024);
1484 if ((nbytes > 0) && (nbytes < 1024))
1486 log(DEBUG,"m_spanningtree: decrypt %d bytes",nbytes);
1487 ctx_in->Decrypt(out, result, nbytes, 0);
1488 for (int t = 0; t < nbytes; t++)
1489 if (result[t] == '\7') result[t] = 0;
1494 if (!this->ProcessLine(ret))
1496 log(DEBUG,"ProcessLine says no!");
1502 /* EAGAIN returns an empty but non-NULL string, so this
1503 * evaluates to TRUE for EAGAIN but to FALSE for EOF.
1505 return (data && !*data);
1508 int WriteLine(std::string line)
1510 log(DEBUG,"OUT: %s",line.c_str());
1514 char result64[10240];
1515 if (this->keylength)
1517 // pad it to the key length
1518 int n = this->keylength - (line.length() % this->keylength);
1521 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);
1522 line.append(n,'\7');
1525 unsigned int ll = line.length();
1526 ctx_out->Encrypt(line.c_str(), result, ll, 0);
1527 to64frombits((unsigned char*)result64,(unsigned char*)result,ll);
1529 //int from64tobits(char *out, const char *in, int maxlen);
1531 return this->Write(line + "\r\n");
1534 /* Handle ERROR command */
1535 bool Error(std::deque<std::string> ¶ms)
1537 if (params.size() < 1)
1539 WriteOpers("*** ERROR from %s: %s",(InboundServerName != "" ? InboundServerName.c_str() : myhost.c_str()),params[0].c_str());
1540 /* we will return false to cause the socket to close. */
1544 /* Because the core won't let users or even SERVERS set +o,
1545 * we use the OPERTYPE command to do this.
1547 bool OperType(std::string prefix, std::deque<std::string> ¶ms)
1549 if (params.size() != 1)
1551 log(DEBUG,"Received invalid oper type from %s",prefix.c_str());
1554 std::string opertype = params[0];
1555 userrec* u = Srv->FindNick(prefix);
1558 strlcpy(u->oper,opertype.c_str(),NICKMAX-1);
1559 if (!strchr(u->modes,'o'))
1561 strcat(u->modes,"o");
1563 DoOneToAllButSender(u->nick,"OPERTYPE",params,u->server);
1568 /* Because Andy insists that services-compatible servers must
1569 * implement SVSNICK and SVSJOIN, that's exactly what we do :p
1571 bool ForceNick(std::string prefix, std::deque<std::string> ¶ms)
1573 if (params.size() < 3)
1576 userrec* u = Srv->FindNick(params[0]);
1580 DoOneToAllButSender(prefix,"SVSNICK",params,prefix);
1583 std::deque<std::string> par;
1584 par.push_back(params[1]);
1585 /* This is not required as one is sent in OnUserPostNick below
1587 //DoOneToMany(u->nick,"NICK",par);
1588 Srv->ChangeUserNick(u,params[1]);
1589 u->age = atoi(params[2].c_str());
1595 bool ServiceJoin(std::string prefix, std::deque<std::string> ¶ms)
1597 if (params.size() < 2)
1600 userrec* u = Srv->FindNick(params[0]);
1604 Srv->JoinUserToChannel(u,params[1],"");
1605 DoOneToAllButSender(prefix,"SVSJOIN",params,prefix);
1610 bool RemoteRehash(std::string prefix, std::deque<std::string> ¶ms)
1612 if (params.size() < 1)
1615 std::string servermask = params[0];
1617 if (Srv->MatchText(Srv->GetServerName(),servermask))
1619 Srv->SendOpers("*** Remote rehash initiated from server \002"+prefix+"\002.");
1620 Srv->RehashServer();
1621 ReadConfiguration(false);
1623 DoOneToAllButSender(prefix,"REHASH",params,prefix);
1627 bool RemoteKill(std::string prefix, std::deque<std::string> ¶ms)
1629 if (params.size() != 2)
1632 std::string nick = params[0];
1633 userrec* u = Srv->FindNick(prefix);
1634 userrec* who = Srv->FindNick(nick);
1638 /* Prepend kill source, if we don't have one */
1639 std::string sourceserv = prefix;
1642 sourceserv = u->server;
1644 if (*(params[1].c_str()) != '[')
1646 params[1] = "[" + sourceserv + "] Killed (" + params[1] +")";
1648 std::string reason = params[1];
1649 params[1] = ":" + params[1];
1650 DoOneToAllButSender(prefix,"KILL",params,sourceserv);
1651 ::Write(who->fd, ":%s KILL %s :%s (%s)", sourceserv.c_str(), who->nick, sourceserv.c_str(), reason.c_str());
1652 Srv->QuitUser(who,reason);
1657 bool LocalPong(std::string prefix, std::deque<std::string> ¶ms)
1659 if (params.size() < 1)
1662 if (params.size() == 1)
1664 TreeServer* ServerSource = FindServer(prefix);
1667 ServerSource->SetPingFlag();
1672 std::string forwardto = params[1];
1673 if (forwardto == Srv->GetServerName())
1676 * this is a PONG for us
1677 * if the prefix is a user, check theyre local, and if they are,
1678 * dump the PONG reply back to their fd. If its a server, do nowt.
1679 * Services might want to send these s->s, but we dont need to yet.
1681 userrec* u = Srv->FindNick(prefix);
1685 WriteServ(u->fd,"PONG %s %s",params[0].c_str(),params[1].c_str());
1690 // not for us, pass it on :)
1691 DoOneToOne(prefix,"PONG",params,forwardto);
1698 bool MetaData(std::string prefix, std::deque<std::string> ¶ms)
1700 if (params.size() < 3)
1703 TreeServer* ServerSource = FindServer(prefix);
1707 if (params[0] == "*")
1709 FOREACH_MOD(I_OnDecodeMetaData,OnDecodeMetaData(TYPE_OTHER,NULL,params[1],params[2]));
1711 else if (*(params[0].c_str()) == '#')
1713 chanrec* c = Srv->FindChannel(params[0]);
1716 FOREACH_MOD(I_OnDecodeMetaData,OnDecodeMetaData(TYPE_CHANNEL,c,params[1],params[2]));
1719 else if (*(params[0].c_str()) != '#')
1721 userrec* u = Srv->FindNick(params[0]);
1724 FOREACH_MOD(I_OnDecodeMetaData,OnDecodeMetaData(TYPE_USER,u,params[1],params[2]));
1729 params[2] = ":" + params[2];
1730 DoOneToAllButSender(prefix,"METADATA",params,prefix);
1734 bool ServerVersion(std::string prefix, std::deque<std::string> ¶ms)
1736 if (params.size() < 1)
1739 TreeServer* ServerSource = FindServer(prefix);
1743 ServerSource->SetVersion(params[0]);
1745 params[0] = ":" + params[0];
1746 DoOneToAllButSender(prefix,"VERSION",params,prefix);
1750 bool ChangeHost(std::string prefix, std::deque<std::string> ¶ms)
1752 if (params.size() < 1)
1755 userrec* u = Srv->FindNick(prefix);
1759 Srv->ChangeHost(u,params[0]);
1760 DoOneToAllButSender(prefix,"FHOST",params,u->server);
1765 bool AddLine(std::string prefix, std::deque<std::string> ¶ms)
1767 if (params.size() < 6)
1770 bool propogate = false;
1772 switch (*(params[0].c_str()))
1775 propogate = add_zline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
1776 zline_set_creation_time((char*)params[1].c_str(), atoi(params[3].c_str()));
1779 propogate = add_qline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
1780 qline_set_creation_time((char*)params[1].c_str(), atoi(params[3].c_str()));
1783 propogate = add_eline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
1784 eline_set_creation_time((char*)params[1].c_str(), atoi(params[3].c_str()));
1787 propogate = add_gline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
1788 gline_set_creation_time((char*)params[1].c_str(), atoi(params[3].c_str()));
1791 propogate = add_kline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
1794 /* Just in case... */
1795 Srv->SendOpers("*** \2WARNING\2: Invalid xline type '"+params[0]+"' sent by server "+prefix+", ignored!");
1800 /* Send it on its way */
1803 if (atoi(params[4].c_str()))
1805 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());
1809 WriteOpers("*** %s Added permenant %cLINE on %s (%s).",prefix.c_str(),*(params[0].c_str()),params[1].c_str(),params[5].c_str());
1811 params[5] = ":" + params[5];
1812 DoOneToAllButSender(prefix,"ADDLINE",params,prefix);
1814 if (!this->bursting)
1816 log(DEBUG,"Applying lines...");
1817 apply_lines(APPLY_ZLINES|APPLY_GLINES|APPLY_QLINES);
1822 bool ChangeName(std::string prefix, std::deque<std::string> ¶ms)
1824 if (params.size() < 1)
1827 userrec* u = Srv->FindNick(prefix);
1831 Srv->ChangeGECOS(u,params[0]);
1832 params[0] = ":" + params[0];
1833 DoOneToAllButSender(prefix,"FNAME",params,u->server);
1838 bool Whois(std::string prefix, std::deque<std::string> ¶ms)
1840 if (params.size() < 1)
1843 log(DEBUG,"In IDLE command");
1844 userrec* u = Srv->FindNick(prefix);
1848 log(DEBUG,"USER EXISTS: %s",u->nick);
1849 // an incoming request
1850 if (params.size() == 1)
1852 userrec* x = Srv->FindNick(params[0]);
1853 if ((x) && (x->fd > -1))
1855 userrec* x = Srv->FindNick(params[0]);
1856 log(DEBUG,"Got IDLE");
1857 char signon[MAXBUF];
1859 log(DEBUG,"Sending back IDLE 3");
1860 snprintf(signon,MAXBUF,"%lu",(unsigned long)x->signon);
1861 snprintf(idle,MAXBUF,"%lu",(unsigned long)abs((x->idle_lastmsg)-time(NULL)));
1862 std::deque<std::string> par;
1863 par.push_back(prefix);
1864 par.push_back(signon);
1865 par.push_back(idle);
1866 // ours, we're done, pass it BACK
1867 DoOneToOne(params[0],"IDLE",par,u->server);
1871 // not ours pass it on
1872 DoOneToOne(prefix,"IDLE",params,x->server);
1875 else if (params.size() == 3)
1877 std::string who_did_the_whois = params[0];
1878 userrec* who_to_send_to = Srv->FindNick(who_did_the_whois);
1879 if ((who_to_send_to) && (who_to_send_to->fd > -1))
1881 log(DEBUG,"Got final IDLE");
1882 // an incoming reply to a whois we sent out
1883 std::string nick_whoised = prefix;
1884 unsigned long signon = atoi(params[1].c_str());
1885 unsigned long idle = atoi(params[2].c_str());
1886 if ((who_to_send_to) && (who_to_send_to->fd > -1))
1887 do_whois(who_to_send_to,u,signon,idle,(char*)nick_whoised.c_str());
1891 // not ours, pass it on
1892 DoOneToOne(prefix,"IDLE",params,who_to_send_to->server);
1899 bool Push(std::string prefix, std::deque<std::string> ¶ms)
1901 if (params.size() < 2)
1904 userrec* u = Srv->FindNick(params[0]);
1911 // push the raw to the user
1912 if (Srv->IsUlined(prefix))
1914 ::Write(u->fd,"%s",params[1].c_str());
1918 log(DEBUG,"PUSH from non-ulined server dropped into the bit-bucket: :%s PUSH %s :%s",prefix.c_str(),params[0].c_str(),params[1].c_str());
1923 // continue the raw onwards
1924 params[1] = ":" + params[1];
1925 DoOneToOne(prefix,"PUSH",params,u->server);
1930 bool Time(std::string prefix, std::deque<std::string> ¶ms)
1932 // :source.server TIME remote.server sendernick
1933 // :remote.server TIME source.server sendernick TS
1934 if (params.size() == 2)
1936 // someone querying our time?
1937 if (Srv->GetServerName() == params[0])
1939 userrec* u = Srv->FindNick(params[1]);
1943 snprintf(curtime,256,"%lu",(unsigned long)time(NULL));
1944 params.push_back(curtime);
1946 DoOneToOne(Srv->GetServerName(),"TIME",params,params[0]);
1951 // not us, pass it on
1952 userrec* u = Srv->FindNick(params[1]);
1954 DoOneToOne(prefix,"TIME",params,params[0]);
1957 else if (params.size() == 3)
1959 // a response to a previous TIME
1960 userrec* u = Srv->FindNick(params[1]);
1961 if ((u) && (IS_LOCAL(u)))
1963 time_t rawtime = atol(params[2].c_str());
1964 struct tm * timeinfo;
1965 timeinfo = localtime(&rawtime);
1967 snprintf(tms,26,"%s",asctime(timeinfo));
1969 WriteServ(u->fd,"391 %s %s :%s",u->nick,prefix.c_str(),tms);
1974 DoOneToOne(prefix,"TIME",params,u->server);
1980 bool LocalPing(std::string prefix, std::deque<std::string> ¶ms)
1982 if (params.size() < 1)
1985 if (params.size() == 1)
1987 std::string stufftobounce = params[0];
1988 this->WriteLine(":"+Srv->GetServerName()+" PONG "+stufftobounce);
1993 std::string forwardto = params[1];
1994 if (forwardto == Srv->GetServerName())
1996 // this is a ping for us, send back PONG to the requesting server
1997 params[1] = params[0];
1998 params[0] = forwardto;
1999 DoOneToOne(forwardto,"PONG",params,params[1]);
2003 // not for us, pass it on :)
2004 DoOneToOne(prefix,"PING",params,forwardto);
2010 bool RemoteServer(std::string prefix, std::deque<std::string> ¶ms)
2012 if (params.size() < 4)
2015 std::string servername = params[0];
2016 std::string password = params[1];
2017 // hopcount is not used for a remote server, we calculate this ourselves
2018 std::string description = params[3];
2019 TreeServer* ParentOfThis = FindServer(prefix);
2023 this->WriteLine("ERROR :Protocol error - Introduced remote server from unknown server "+prefix);
2026 TreeServer* CheckDupe = FindServer(servername);
2029 this->WriteLine("ERROR :Server "+servername+" already exists!");
2030 Srv->SendOpers("*** Server connection from \2"+servername+"\2 denied, already exists");
2033 TreeServer* Node = new TreeServer(servername,description,ParentOfThis,NULL);
2034 ParentOfThis->AddChild(Node);
2035 params[3] = ":" + params[3];
2036 DoOneToAllButSender(prefix,"SERVER",params,prefix);
2037 Srv->SendOpers("*** Server \002"+prefix+"\002 introduced server \002"+servername+"\002 ("+description+")");
2041 bool Outbound_Reply_Server(std::deque<std::string> ¶ms)
2043 if (params.size() < 4)
2046 irc::string servername = params[0].c_str();
2047 std::string sname = params[0];
2048 std::string password = params[1];
2049 int hops = atoi(params[2].c_str());
2053 this->WriteLine("ERROR :Server too far away for authentication");
2054 Srv->SendOpers("*** Server connection from \2"+sname+"\2 denied, server is too far away for authentication");
2057 std::string description = params[3];
2058 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
2060 if ((x->Name == servername) && (x->RecvPass == password))
2062 TreeServer* CheckDupe = FindServer(sname);
2065 this->WriteLine("ERROR :Server "+sname+" already exists on server "+CheckDupe->GetParent()->GetName()+"!");
2066 Srv->SendOpers("*** Server connection from \2"+sname+"\2 denied, already exists on server "+CheckDupe->GetParent()->GetName());
2069 // Begin the sync here. this kickstarts the
2070 // other side, waiting in WAIT_AUTH_2 state,
2071 // into starting their burst, as it shows
2072 // that we're happy.
2073 this->LinkState = CONNECTED;
2074 // we should add the details of this server now
2075 // to the servers tree, as a child of the root
2077 TreeServer* Node = new TreeServer(sname,description,TreeRoot,this);
2078 TreeRoot->AddChild(Node);
2079 params[3] = ":" + params[3];
2080 DoOneToAllButSender(TreeRoot->GetName(),"SERVER",params,sname);
2081 this->bursting = true;
2082 this->DoBurst(Node);
2086 this->WriteLine("ERROR :Invalid credentials");
2087 Srv->SendOpers("*** Server connection from \2"+sname+"\2 denied, invalid link credentials");
2091 bool Inbound_Server(std::deque<std::string> ¶ms)
2093 if (params.size() < 4)
2096 irc::string servername = params[0].c_str();
2097 std::string sname = params[0];
2098 std::string password = params[1];
2099 int hops = atoi(params[2].c_str());
2103 this->WriteLine("ERROR :Server too far away for authentication");
2104 Srv->SendOpers("*** Server connection from \2"+sname+"\2 denied, server is too far away for authentication");
2107 std::string description = params[3];
2108 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
2110 if ((x->Name == servername) && (x->RecvPass == password))
2112 TreeServer* CheckDupe = FindServer(sname);
2115 this->WriteLine("ERROR :Server "+sname+" already exists on server "+CheckDupe->GetParent()->GetName()+"!");
2116 Srv->SendOpers("*** Server connection from \2"+sname+"\2 denied, already exists on server "+CheckDupe->GetParent()->GetName());
2119 /* If the config says this link is encrypted, but the remote side
2120 * hasnt bothered to send the AES command before SERVER, then we
2121 * boot them off as we MUST have this connection encrypted.
2123 if ((x->EncryptionKey != "") && (!this->ctx_in))
2125 this->WriteLine("ERROR :This link requires AES encryption to be enabled. Plaintext connection refused.");
2126 Srv->SendOpers("*** Server connection from \2"+sname+"\2 denied, remote server did not enable AES.");
2129 Srv->SendOpers("*** Verified incoming server connection from \002"+sname+"\002["+(x->HiddenFromStats ? "<hidden>" : this->GetIP())+"] ("+description+")");
2130 this->InboundServerName = sname;
2131 this->InboundDescription = description;
2132 // this is good. Send our details: Our server name and description and hopcount of 0,
2133 // along with the sendpass from this block.
2134 this->WriteLine("SERVER "+Srv->GetServerName()+" "+x->SendPass+" 0 :"+Srv->GetServerDescription());
2135 // move to the next state, we are now waiting for THEM.
2136 this->LinkState = WAIT_AUTH_2;
2140 this->WriteLine("ERROR :Invalid credentials");
2141 Srv->SendOpers("*** Server connection from \2"+sname+"\2 denied, invalid link credentials");
2145 void Split(std::string line, bool stripcolon, std::deque<std::string> &n)
2147 // we don't do anything with a line > 2048
2148 if (line.length() > 2048)
2150 log(DEBUG,"Line too long!");
2153 if (!strchr(line.c_str(),' '))
2158 std::stringstream s(line);
2185 if ((*param == ':') && (count == 1) && (item > 0))
2214 bool ProcessLine(std::string line)
2216 char* l = (char*)line.c_str();
2217 for (char* x = l; *x; x++)
2219 if ((*x == '\r') || (*x == '\n'))
2225 log(DEBUG,"IN: %s",l);
2227 std::deque<std::string> params;
2228 this->Split(l,true,params);
2229 irc::string command = "";
2230 std::string prefix = "";
2231 if (((params[0].c_str())[0] == ':') && (params.size() > 1))
2234 command = params[1].c_str();
2235 char* pref = (char*)prefix.c_str();
2243 command = params[0].c_str();
2247 if ((!this->ctx_in) && (command == "AES"))
2249 std::string sserv = params[0];
2250 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
2252 if ((x->EncryptionKey != "") && (x->Name == sserv))
2254 this->InitAES(x->EncryptionKey,sserv);
2260 else if ((this->ctx_in) && (command == "AES"))
2262 WriteOpers("*** \2AES\2: Encryption already enabled on this connection yet %s is trying to enable it twice!",params[0].c_str());
2265 switch (this->LinkState)
2270 // Waiting for SERVER command from remote server. Server initiating
2271 // the connection sends the first SERVER command, listening server
2272 // replies with theirs if its happy, then if the initiator is happy,
2273 // it starts to send its net sync, which starts the merge, otherwise
2274 // it sends an ERROR.
2275 if (command == "PASS")
2277 /* Silently ignored */
2279 else if (command == "SERVER")
2281 return this->Inbound_Server(params);
2283 else if (command == "ERROR")
2285 return this->Error(params);
2287 else if (command == "USER")
2289 this->WriteLine("ERROR :Client connections to this port are prohibited.");
2292 else if (command == "CAPAB")
2294 return this->Capab(params);
2296 else if ((command == "U") || (command == "S"))
2298 this->WriteLine("ERROR :Cannot use the old-style mesh linking protocol with m_spanningtree.so!");
2303 this->WriteLine("ERROR :Invalid command in negotiation phase.");
2308 // Waiting for start of other side's netmerge to say they liked our
2310 if (command == "SERVER")
2312 // cant do this, they sent it to us in the WAIT_AUTH_1 state!
2316 else if ((command == "U") || (command == "S"))
2318 this->WriteLine("ERROR :Cannot use the old-style mesh linking protocol with m_spanningtree.so!");
2321 else if (command == "BURST")
2325 /* If a time stamp is provided, try and check syncronization */
2326 time_t THEM = atoi(params[0].c_str());
2327 long delta = THEM-time(NULL);
2328 if ((delta < -600) || (delta > 600))
2330 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));
2331 this->WriteLine("ERROR :Your clocks are out by "+ConvToStr(abs(delta))+" seconds (this is more than ten minutes). Link aborted, PLEASE SYNC YOUR CLOCKS!");
2334 else if ((delta < -60) || (delta > 60))
2336 WriteOpers("*** \2WARNING\2: Your clocks are out by %d seconds, please consider synching your clocks.",abs(delta));
2339 this->LinkState = CONNECTED;
2340 Node = new TreeServer(InboundServerName,InboundDescription,TreeRoot,this);
2341 TreeRoot->AddChild(Node);
2343 params.push_back(InboundServerName);
2344 params.push_back("*");
2345 params.push_back("1");
2346 params.push_back(":"+InboundDescription);
2347 DoOneToAllButSender(TreeRoot->GetName(),"SERVER",params,InboundServerName);
2348 this->bursting = true;
2349 this->DoBurst(Node);
2351 else if (command == "ERROR")
2353 return this->Error(params);
2355 else if (command == "CAPAB")
2357 return this->Capab(params);
2362 this->WriteLine("ERROR :Internal error -- listening socket accepted its own descriptor!!!");
2366 if (command == "SERVER")
2368 // another server we connected to, which was in WAIT_AUTH_1 state,
2369 // has just sent us their credentials. If we get this far, theyre
2370 // happy with OUR credentials, and they are now in WAIT_AUTH_2 state.
2371 // if we're happy with this, we should send our netburst which
2372 // kickstarts the merge.
2373 return this->Outbound_Reply_Server(params);
2375 else if (command == "ERROR")
2377 return this->Error(params);
2381 // This is the 'authenticated' state, when all passwords
2382 // have been exchanged and anything past this point is taken
2387 std::string direction = prefix;
2388 userrec* t = Srv->FindNick(prefix);
2391 direction = t->server;
2393 TreeServer* route_back_again = BestRouteTo(direction);
2394 if ((!route_back_again) || (route_back_again->GetSocket() != this))
2396 if (route_back_again)
2397 log(DEBUG,"Protocol violation: Fake direction in command '%s' from connection '%s'",line.c_str(),this->GetName().c_str());
2402 * When there is activity on the socket, reset the ping counter so
2403 * that we're not wasting bandwidth pinging an active server.
2405 route_back_again->SetNextPingTime(time(NULL) + 120);
2406 route_back_again->SetPingFlag();
2409 if (command == "SVSMODE")
2411 /* Services expects us to implement
2412 * SVSMODE. In inspircd its the same as
2417 std::string target = "";
2418 /* Yes, know, this is a mess. Its reasonably fast though as we're
2419 * working with std::string here.
2421 if ((command == "NICK") && (params.size() > 1))
2423 return this->IntroduceClient(prefix,params);
2425 else if (command == "FJOIN")
2427 return this->ForceJoin(prefix,params);
2429 else if (command == "SYNCTS")
2431 return this->SyncChannelTS(prefix,params);
2433 else if (command == "SERVER")
2435 return this->RemoteServer(prefix,params);
2437 else if (command == "ERROR")
2439 return this->Error(params);
2441 else if (command == "OPERTYPE")
2443 return this->OperType(prefix,params);
2445 else if (command == "FMODE")
2447 return this->ForceMode(prefix,params);
2449 else if (command == "KILL")
2451 return this->RemoteKill(prefix,params);
2453 else if (command == "FTOPIC")
2455 return this->ForceTopic(prefix,params);
2457 else if (command == "REHASH")
2459 return this->RemoteRehash(prefix,params);
2461 else if (command == "METADATA")
2463 return this->MetaData(prefix,params);
2465 else if (command == "PING")
2468 * We just got a ping from a server that's bursting.
2469 * This can't be right, so set them to not bursting, and
2470 * apply their lines.
2474 this->bursting = false;
2475 apply_lines(APPLY_ZLINES|APPLY_GLINES|APPLY_QLINES);
2479 prefix = this->GetName();
2481 return this->LocalPing(prefix,params);
2483 else if (command == "PONG")
2486 * We just got a pong from a server that's bursting.
2487 * This can't be right, so set them to not bursting, and
2488 * apply their lines.
2492 this->bursting = false;
2493 apply_lines(APPLY_ZLINES|APPLY_GLINES|APPLY_QLINES);
2497 prefix = this->GetName();
2499 return this->LocalPong(prefix,params);
2501 else if (command == "VERSION")
2503 return this->ServerVersion(prefix,params);
2505 else if (command == "FHOST")
2507 return this->ChangeHost(prefix,params);
2509 else if (command == "FNAME")
2511 return this->ChangeName(prefix,params);
2513 else if (command == "ADDLINE")
2515 return this->AddLine(prefix,params);
2517 else if (command == "SVSNICK")
2521 prefix = this->GetName();
2523 return this->ForceNick(prefix,params);
2525 else if (command == "IDLE")
2527 return this->Whois(prefix,params);
2529 else if (command == "PUSH")
2531 return this->Push(prefix,params);
2533 else if (command == "TIME")
2535 return this->Time(prefix,params);
2537 else if ((command == "KICK") && (IsServer(prefix)))
2539 std::string sourceserv = this->myhost;
2540 if (params.size() == 3)
2542 userrec* user = Srv->FindNick(params[1]);
2543 chanrec* chan = Srv->FindChannel(params[0]);
2546 server_kick_channel(user,chan,(char*)params[2].c_str(),false);
2549 if (this->InboundServerName != "")
2551 sourceserv = this->InboundServerName;
2553 return DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
2555 else if (command == "SVSJOIN")
2559 prefix = this->GetName();
2561 return this->ServiceJoin(prefix,params);
2563 else if (command == "SQUIT")
2565 if (params.size() == 2)
2567 this->Squit(FindServer(params[0]),params[1]);
2571 else if (command == "ENDBURST")
2573 this->bursting = false;
2574 apply_lines(APPLY_ZLINES|APPLY_GLINES|APPLY_QLINES);
2575 std::string sourceserv = this->myhost;
2576 if (this->InboundServerName != "")
2578 sourceserv = this->InboundServerName;
2580 WriteOpers("*** Received end of netburst from \2%s\2",sourceserv.c_str());
2585 // not a special inter-server command.
2586 // Emulate the actual user doing the command,
2587 // this saves us having a huge ugly parser.
2588 userrec* who = Srv->FindNick(prefix);
2589 std::string sourceserv = this->myhost;
2590 if (this->InboundServerName != "")
2592 sourceserv = this->InboundServerName;
2596 if (command == "QUIT")
2598 TreeServer* s = FindServer(who->server);
2604 else if ((command == "NICK") && (params.size() > 0))
2606 /* On nick messages, check that the nick doesnt
2607 * already exist here. If it does, kill their copy,
2610 userrec* x = Srv->FindNick(params[0]);
2611 if ((x) && (x != who))
2613 std::deque<std::string> p;
2614 p.push_back(params[0]);
2615 p.push_back("Nickname collision ("+prefix+" -> "+params[0]+")");
2616 DoOneToMany(Srv->GetServerName(),"KILL",p);
2618 p.push_back(prefix);
2619 p.push_back("Nickname collision");
2620 DoOneToMany(Srv->GetServerName(),"KILL",p);
2621 Srv->QuitUser(x,"Nickname collision ("+prefix+" -> "+params[0]+")");
2622 userrec* y = Srv->FindNick(prefix);
2625 TreeServer* n = FindServer(y->server);
2630 Srv->QuitUser(y,"Nickname collision");
2632 return DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
2636 target = who->server;
2637 char* strparams[127];
2638 for (unsigned int q = 0; q < params.size(); q++)
2640 strparams[q] = (char*)params[q].c_str();
2642 if (!Srv->CallCommandHandler(command.c_str(), strparams, params.size(), who))
2644 this->WriteLine("ERROR :Unrecognised command '"+std::string(command.c_str())+"' -- possibly loaded mismatched modules");
2650 // its not a user. Its either a server, or somethings screwed up.
2651 if (IsServer(prefix))
2653 target = Srv->GetServerName();
2657 log(DEBUG,"Command with unknown origin '%s'",prefix.c_str());
2661 return DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
2670 virtual std::string GetName()
2672 std::string sourceserv = this->myhost;
2673 if (this->InboundServerName != "")
2675 sourceserv = this->InboundServerName;
2680 virtual void OnTimeout()
2682 if (this->LinkState == CONNECTING)
2684 Srv->SendOpers("*** CONNECT: Connection to \002"+myhost+"\002 timed out.");
2688 virtual void OnClose()
2690 // Connection closed.
2691 // If the connection is fully up (state CONNECTED)
2692 // then propogate a netsplit to all peers.
2693 std::string quitserver = this->myhost;
2694 if (this->InboundServerName != "")
2696 quitserver = this->InboundServerName;
2698 TreeServer* s = FindServer(quitserver);
2701 Squit(s,"Remote host closed the connection");
2703 WriteOpers("Server '\2%s\2' closed the connection.",quitserver.c_str());
2706 virtual int OnIncomingConnection(int newsock, char* ip)
2708 /* To prevent anyone from attempting to flood opers/DDoS by connecting to the server port,
2709 * or discovering if this port is the server port, we don't allow connections from any
2710 * IPs for which we don't have a link block.
2713 char resolved_host[MAXBUF];
2714 vector<Link>::iterator i;
2715 for (i = LinkBlocks.begin(); i != LinkBlocks.end(); i++)
2717 if (i->IPAddr == ip)
2722 /* XXX: Fixme: blocks for a very short amount of time,
2723 * we should cache these on rehash/startup
2725 if (CleanAndResolve(resolved_host,i->IPAddr.c_str(),true))
2727 if (std::string(resolved_host) == ip)
2736 WriteOpers("Server connection from %s denied (no link blocks with that IP address)", ip);
2740 TreeSocket* s = new TreeSocket(newsock, ip);
2746 void AddThisServer(TreeServer* server, std::deque<TreeServer*> &list)
2748 for (unsigned int c = 0; c < list.size(); c++)
2750 if (list[c] == server)
2755 list.push_back(server);
2758 // returns a list of DIRECT servernames for a specific channel
2759 void GetListOfServersForChannel(chanrec* c, std::deque<TreeServer*> &list)
2761 CUList *ulist = c->GetUsers();
2762 for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
2764 if (i->second->fd < 0)
2766 TreeServer* best = BestRouteTo(i->second->server);
2768 AddThisServer(best,list);
2774 bool DoOneToAllButSenderRaw(std::string data, std::string omit, std::string prefix, irc::string command, std::deque<std::string> ¶ms)
2776 TreeServer* omitroute = BestRouteTo(omit);
2777 if ((command == "NOTICE") || (command == "PRIVMSG"))
2779 if ((params.size() >= 2) && (*(params[0].c_str()) != '$'))
2782 if ((*(params[0].c_str()) == '@') || (*(params[0].c_str()) == '%') || (*(params[0].c_str()) == '+'))
2784 params[0] = params[0].substr(1, params[0].length()-1);
2786 if (*(params[0].c_str()) != '#')
2788 // special routing for private messages/notices
2789 userrec* d = Srv->FindNick(params[0]);
2792 std::deque<std::string> par;
2793 par.push_back(params[0]);
2794 par.push_back(":"+params[1]);
2795 DoOneToOne(prefix,command.c_str(),par,d->server);
2801 log(DEBUG,"Channel privmsg going to chan %s",params[0].c_str());
2802 chanrec* c = Srv->FindChannel(params[0]);
2805 std::deque<TreeServer*> list;
2806 GetListOfServersForChannel(c,list);
2807 log(DEBUG,"Got a list of %d servers",list.size());
2808 unsigned int lsize = list.size();
2809 for (unsigned int i = 0; i < lsize; i++)
2811 TreeSocket* Sock = list[i]->GetSocket();
2812 if ((Sock) && (list[i]->GetName() != omit) && (omitroute != list[i]))
2814 log(DEBUG,"Writing privmsg to server %s",list[i]->GetName().c_str());
2815 Sock->WriteLine(data);
2823 unsigned int items = TreeRoot->ChildCount();
2824 for (unsigned int x = 0; x < items; x++)
2826 TreeServer* Route = TreeRoot->GetChild(x);
2827 if ((Route->GetSocket()) && (Route->GetName() != omit) && (omitroute != Route))
2829 TreeSocket* Sock = Route->GetSocket();
2830 Sock->WriteLine(data);
2836 bool DoOneToAllButSender(std::string prefix, std::string command, std::deque<std::string> ¶ms, std::string omit)
2838 TreeServer* omitroute = BestRouteTo(omit);
2839 std::string FullLine = ":" + prefix + " " + command;
2840 unsigned int words = params.size();
2841 for (unsigned int x = 0; x < words; x++)
2843 FullLine = FullLine + " " + params[x];
2845 unsigned int items = TreeRoot->ChildCount();
2846 for (unsigned int x = 0; x < items; x++)
2848 TreeServer* Route = TreeRoot->GetChild(x);
2849 // Send the line IF:
2850 // The route has a socket (its a direct connection)
2851 // The route isnt the one to be omitted
2852 // The route isnt the path to the one to be omitted
2853 if ((Route->GetSocket()) && (Route->GetName() != omit) && (omitroute != Route))
2855 TreeSocket* Sock = Route->GetSocket();
2856 Sock->WriteLine(FullLine);
2862 bool DoOneToMany(std::string prefix, std::string command, std::deque<std::string> ¶ms)
2864 std::string FullLine = ":" + prefix + " " + command;
2865 unsigned int words = params.size();
2866 for (unsigned int x = 0; x < words; x++)
2868 FullLine = FullLine + " " + params[x];
2870 unsigned int items = TreeRoot->ChildCount();
2871 for (unsigned int x = 0; x < items; x++)
2873 TreeServer* Route = TreeRoot->GetChild(x);
2874 if (Route->GetSocket())
2876 TreeSocket* Sock = Route->GetSocket();
2877 Sock->WriteLine(FullLine);
2883 bool DoOneToOne(std::string prefix, std::string command, std::deque<std::string> ¶ms, std::string target)
2885 TreeServer* Route = BestRouteTo(target);
2888 std::string FullLine = ":" + prefix + " " + command;
2889 unsigned int words = params.size();
2890 for (unsigned int x = 0; x < words; x++)
2892 FullLine = FullLine + " " + params[x];
2894 if (Route->GetSocket())
2896 TreeSocket* Sock = Route->GetSocket();
2897 Sock->WriteLine(FullLine);
2907 std::vector<TreeSocket*> Bindings;
2909 void ReadConfiguration(bool rebind)
2911 Conf = new ConfigReader;
2914 for (int j =0; j < Conf->Enumerate("bind"); j++)
2916 std::string Type = Conf->ReadValue("bind","type",j);
2917 std::string IP = Conf->ReadValue("bind","address",j);
2918 long Port = Conf->ReadInteger("bind","port",j,true);
2919 if (Type == "servers")
2925 TreeSocket* listener = new TreeSocket(IP.c_str(),Port,true,10);
2926 if (listener->GetState() == I_LISTENING)
2928 Srv->AddSocket(listener);
2929 Bindings.push_back(listener);
2933 log(DEFAULT,"m_spanningtree: Warning: Failed to bind server port %d",Port);
2940 FlatLinks = Conf->ReadFlag("options","flatlinks",0);
2941 HideULines = Conf->ReadFlag("options","hideulines",0);
2943 for (int j =0; j < Conf->Enumerate("link"); j++)
2946 L.Name = (Conf->ReadValue("link","name",j)).c_str();
2947 L.IPAddr = Conf->ReadValue("link","ipaddr",j);
2948 L.Port = Conf->ReadInteger("link","port",j,true);
2949 L.SendPass = Conf->ReadValue("link","sendpass",j);
2950 L.RecvPass = Conf->ReadValue("link","recvpass",j);
2951 L.AutoConnect = Conf->ReadInteger("link","autoconnect",j,true);
2952 L.EncryptionKey = Conf->ReadValue("link","encryptionkey",j);
2953 L.HiddenFromStats = Conf->ReadFlag("link","hidden",j);
2954 L.NextConnectTime = time(NULL) + L.AutoConnect;
2955 /* Bugfix by brain, do not allow people to enter bad configurations */
2956 if ((L.IPAddr != "") && (L.RecvPass != "") && (L.SendPass != "") && (L.Name != "") && (L.Port))
2958 LinkBlocks.push_back(L);
2959 log(DEBUG,"m_spanningtree: Read server %s with host %s:%d",L.Name.c_str(),L.IPAddr.c_str(),L.Port);
2965 log(DEFAULT,"Invalid configuration for server '%s', IP address not defined!",L.Name.c_str());
2967 else if (L.RecvPass == "")
2969 log(DEFAULT,"Invalid configuration for server '%s', recvpass not defined!",L.Name.c_str());
2971 else if (L.SendPass == "")
2973 log(DEFAULT,"Invalid configuration for server '%s', sendpass not defined!",L.Name.c_str());
2975 else if (L.Name == "")
2977 log(DEFAULT,"Invalid configuration, link tag without a name!");
2981 log(DEFAULT,"Invalid configuration for server '%s', no port specified!",L.Name.c_str());
2989 class ModuleSpanningTree : public Module
2991 std::vector<TreeSocket*> Bindings;
2994 unsigned int max_local;
2995 unsigned int max_global;
2996 cmd_rconnect* command_rconnect;
3000 ModuleSpanningTree(Server* Me)
3001 : Module::Module(Me), max_local(0), max_global(0)
3006 // Create the root of the tree
3007 TreeRoot = new TreeServer(Srv->GetServerName(),Srv->GetServerDescription());
3009 ReadConfiguration(true);
3011 command_rconnect = new cmd_rconnect(this);
3012 Srv->AddCommand(command_rconnect);
3015 void ShowLinks(TreeServer* Current, userrec* user, int hops)
3017 std::string Parent = TreeRoot->GetName();
3018 if (Current->GetParent())
3020 Parent = Current->GetParent()->GetName();
3022 for (unsigned int q = 0; q < Current->ChildCount(); q++)
3024 if ((HideULines) && (Srv->IsUlined(Current->GetChild(q)->GetName())))
3028 ShowLinks(Current->GetChild(q),user,hops+1);
3033 ShowLinks(Current->GetChild(q),user,hops+1);
3036 /* Don't display the line if its a uline, hide ulines is on, and the user isnt an oper */
3037 if ((HideULines) && (Srv->IsUlined(Current->GetName())) && (!*user->oper))
3039 WriteServ(user->fd,"364 %s %s %s :%d %s",user->nick,Current->GetName().c_str(),(FlatLinks && (!*user->oper)) ? Srv->GetServerName().c_str() : Parent.c_str(),(FlatLinks && (!*user->oper)) ? 0 : hops,Current->GetDesc().c_str());
3042 int CountLocalServs()
3044 return TreeRoot->ChildCount();
3049 return serverlist.size();
3052 void HandleLinks(char** parameters, int pcnt, userrec* user)
3054 ShowLinks(TreeRoot,user,0);
3055 WriteServ(user->fd,"365 %s * :End of /LINKS list.",user->nick);
3059 void HandleLusers(char** parameters, int pcnt, userrec* user)
3061 unsigned int n_users = usercnt();
3063 /* Only update these when someone wants to see them, more efficient */
3064 if ((unsigned int)local_count() > max_local)
3065 max_local = local_count();
3066 if (n_users > max_global)
3067 max_global = n_users;
3069 WriteServ(user->fd,"251 %s :There are %d users and %d invisible on %d servers",user->nick,n_users-usercount_invisible(),usercount_invisible(),this->CountServs());
3070 WriteServ(user->fd,"252 %s %d :operator(s) online",user->nick,usercount_opers());
3071 WriteServ(user->fd,"253 %s %d :unknown connections",user->nick,usercount_unknown());
3072 WriteServ(user->fd,"254 %s %d :channels formed",user->nick,chancount());
3073 WriteServ(user->fd,"254 %s :I have %d clients and %d servers",user->nick,local_count(),this->CountLocalServs());
3074 WriteServ(user->fd,"265 %s :Current Local Users: %d Max: %d",user->nick,local_count(),max_local);
3075 WriteServ(user->fd,"266 %s :Current Global Users: %d Max: %d",user->nick,n_users,max_global);
3079 // WARNING: NOT THREAD SAFE - DONT GET ANY SMART IDEAS.
3081 void ShowMap(TreeServer* Current, userrec* user, int depth, char matrix[128][80], float &totusers, float &totservers)
3085 for (int t = 0; t < depth; t++)
3087 matrix[line][t] = ' ';
3090 // For Aligning, we need to work out exactly how deep this thing is, and produce
3091 // a 'Spacer' String to compensate.
3094 memset(spacer,' ',40);
3095 if ((40 - Current->GetName().length() - depth) > 1) {
3096 spacer[40 - Current->GetName().length() - depth] = '\0';
3105 if (clientlist.size() == 0) {
3106 // If there are no users, WHO THE HELL DID THE /MAP?!?!?!
3111 percent = ((float)Current->GetUserCount() / (float)clientlist.size()) * 100;
3113 snprintf(text, 80, "%s %s%5d [%5.2f%%]", Current->GetName().c_str(), spacer, Current->GetUserCount(), percent);
3114 totusers += Current->GetUserCount();
3116 strlcpy(&matrix[line][depth],text,80);
3118 for (unsigned int q = 0; q < Current->ChildCount(); q++)
3120 if ((HideULines) && (Srv->IsUlined(Current->GetChild(q)->GetName())))
3124 ShowMap(Current->GetChild(q),user,(FlatLinks && (!*user->oper)) ? depth : depth+2,matrix,totusers,totservers);
3129 ShowMap(Current->GetChild(q),user,(FlatLinks && (!*user->oper)) ? depth : depth+2,matrix,totusers,totservers);
3135 // Ok, prepare to be confused.
3136 // After much mulling over how to approach this, it struck me that
3137 // the 'usual' way of doing a /MAP isnt the best way. Instead of
3138 // keeping track of a ton of ascii characters, and line by line
3139 // under recursion working out where to place them using multiplications
3140 // and divisons, we instead render the map onto a backplane of characters
3141 // (a character matrix), then draw the branches as a series of "L" shapes
3142 // from the nodes. This is not only friendlier on CPU it uses less stack.
3144 void HandleMap(char** parameters, int pcnt, userrec* user)
3146 // This array represents a virtual screen which we will
3147 // "scratch" draw to, as the console device of an irc
3148 // client does not provide for a proper terminal.
3150 float totservers = 0;
3151 char matrix[128][80];
3152 for (unsigned int t = 0; t < 128; t++)
3154 matrix[t][0] = '\0';
3157 // The only recursive bit is called here.
3158 ShowMap(TreeRoot,user,0,matrix,totusers,totservers);
3159 // Process each line one by one. The algorithm has a limit of
3160 // 128 servers (which is far more than a spanning tree should have
3161 // anyway, so we're ok). This limit can be raised simply by making
3162 // the character matrix deeper, 128 rows taking 10k of memory.
3163 for (int l = 1; l < line; l++)
3165 // scan across the line looking for the start of the
3166 // servername (the recursive part of the algorithm has placed
3167 // the servers at indented positions depending on what they
3169 int first_nonspace = 0;
3170 while (matrix[l][first_nonspace] == ' ')
3175 // Draw the `- (corner) section: this may be overwritten by
3176 // another L shape passing along the same vertical pane, becoming
3177 // a |- (branch) section instead.
3178 matrix[l][first_nonspace] = '-';
3179 matrix[l][first_nonspace-1] = '`';
3181 // Draw upwards until we hit the parent server, causing possibly
3182 // other corners (`-) to become branches (|-)
3183 while ((matrix[l2][first_nonspace-1] == ' ') || (matrix[l2][first_nonspace-1] == '`'))
3185 matrix[l2][first_nonspace-1] = '|';
3189 // dump the whole lot to the user. This is the easy bit, honest.
3190 for (int t = 0; t < line; t++)
3192 WriteServ(user->fd,"006 %s :%s",user->nick,&matrix[t][0]);
3194 float avg_users = totusers / totservers;
3195 WriteServ(user->fd,"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);
3196 WriteServ(user->fd,"007 %s :End of /MAP",user->nick);
3200 int HandleSquit(char** parameters, int pcnt, userrec* user)
3202 TreeServer* s = FindServerMask(parameters[0]);
3207 WriteServ(user->fd,"NOTICE %s :*** SQUIT: Foolish mortal, you cannot make a server SQUIT itself! (%s matches local server name)",user->nick,parameters[0]);
3210 TreeSocket* sock = s->GetSocket();
3213 log(DEBUG,"Splitting server %s",s->GetName().c_str());
3214 WriteOpers("*** SQUIT: Server \002%s\002 removed from network by %s",parameters[0],user->nick);
3215 sock->Squit(s,"Server quit by "+std::string(user->nick)+"!"+std::string(user->ident)+"@"+std::string(user->host));
3216 Srv->RemoveSocket(sock);
3220 WriteServ(user->fd,"NOTICE %s :*** SQUIT: The server \002%s\002 is not directly connected.",user->nick,parameters[0]);
3225 WriteServ(user->fd,"NOTICE %s :*** SQUIT: The server \002%s\002 does not exist on the network.",user->nick,parameters[0]);
3230 int HandleTime(char** parameters, int pcnt, userrec* user)
3232 if ((user->fd > -1) && (pcnt))
3234 TreeServer* found = FindServerMask(parameters[0]);
3237 // we dont' override for local server
3238 if (found == TreeRoot)
3241 std::deque<std::string> params;
3242 params.push_back(found->GetName());
3243 params.push_back(user->nick);
3244 DoOneToOne(Srv->GetServerName(),"TIME",params,found->GetName());
3248 WriteServ(user->fd,"402 %s %s :No such server",user->nick,parameters[0]);
3254 int HandleRemoteWhois(char** parameters, int pcnt, userrec* user)
3256 if ((user->fd > -1) && (pcnt > 1))
3258 userrec* remote = Srv->FindNick(parameters[1]);
3259 if ((remote) && (remote->fd < 0))
3261 std::deque<std::string> params;
3262 params.push_back(parameters[1]);
3263 DoOneToOne(user->nick,"IDLE",params,remote->server);
3268 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, parameters[1]);
3269 WriteServ(user->fd,"318 %s %s :End of /WHOIS list.",user->nick, parameters[1]);
3276 void DoPingChecks(time_t curtime)
3278 for (unsigned int j = 0; j < TreeRoot->ChildCount(); j++)
3280 TreeServer* serv = TreeRoot->GetChild(j);
3281 TreeSocket* sock = serv->GetSocket();
3284 if (curtime >= serv->NextPingTime())
3286 if (serv->AnsweredLastPing())
3288 sock->WriteLine(":"+Srv->GetServerName()+" PING "+serv->GetName());
3289 serv->SetNextPingTime(curtime + 120);
3293 // they didnt answer, boot them
3294 WriteOpers("*** Server \002%s\002 pinged out",serv->GetName().c_str());
3295 sock->Squit(serv,"Ping timeout");
3296 Srv->RemoveSocket(sock);
3304 void AutoConnectServers(time_t curtime)
3306 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
3308 if ((x->AutoConnect) && (curtime >= x->NextConnectTime))
3310 log(DEBUG,"Auto-Connecting %s",x->Name.c_str());
3311 x->NextConnectTime = curtime + x->AutoConnect;
3312 TreeServer* CheckDupe = FindServer(x->Name.c_str());
3315 // an autoconnected server is not connected. Check if its time to connect it
3316 WriteOpers("*** AUTOCONNECT: Auto-connecting server \002%s\002 (%lu seconds until next attempt)",x->Name.c_str(),x->AutoConnect);
3317 TreeSocket* newsocket = new TreeSocket(x->IPAddr,x->Port,false,10,x->Name.c_str());
3318 if (newsocket->GetFd() > -1)
3320 Srv->AddSocket(newsocket);
3324 WriteOpers("*** AUTOCONNECT: Error autoconnecting \002%s\002: %s.",x->Name.c_str(),strerror(errno));
3332 int HandleVersion(char** parameters, int pcnt, userrec* user)
3334 // we've already checked if pcnt > 0, so this is safe
3335 TreeServer* found = FindServerMask(parameters[0]);
3338 std::string Version = found->GetVersion();
3339 WriteServ(user->fd,"351 %s :%s",user->nick,Version.c_str());
3340 if (found == TreeRoot)
3342 std::stringstream out(Config->data005);
3343 std::string token = "";
3344 std::string line5 = "";
3345 int token_counter = 0;
3350 line5 = line5 + token + " ";
3353 if ((token_counter >= 13) || (out.eof() == true))
3355 WriteServ(user->fd,"005 %s %s:are supported by this server",user->nick,line5.c_str());
3364 WriteServ(user->fd,"402 %s %s :No such server",user->nick,parameters[0]);
3369 int HandleConnect(char** parameters, int pcnt, userrec* user)
3371 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
3373 if (Srv->MatchText(x->Name.c_str(),parameters[0]))
3375 TreeServer* CheckDupe = FindServer(x->Name.c_str());
3378 WriteServ(user->fd,"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);
3379 TreeSocket* newsocket = new TreeSocket(x->IPAddr,x->Port,false,10,x->Name.c_str());
3380 if (newsocket->GetFd() > -1)
3382 Srv->AddSocket(newsocket);
3386 WriteServ(user->fd,"NOTICE %s :*** CONNECT: Error connecting \002%s\002: %s.",user->nick,x->Name.c_str(),strerror(errno));
3393 WriteServ(user->fd,"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());
3398 WriteServ(user->fd,"NOTICE %s :*** CONNECT: No server matching \002%s\002 could be found in the config file.",user->nick,parameters[0]);
3402 virtual int OnStats(char statschar, userrec* user)
3404 if (statschar == 'c')
3406 for (unsigned int i = 0; i < LinkBlocks.size(); i++)
3408 WriteServ(user->fd,"213 %s C *@%s * %s %d 0 %c%c%c",user->nick,(LinkBlocks[i].HiddenFromStats ? "<hidden>" : LinkBlocks[i].IPAddr).c_str(),LinkBlocks[i].Name.c_str(),LinkBlocks[i].Port,(LinkBlocks[i].EncryptionKey != "" ? 'e' : '-'),(LinkBlocks[i].AutoConnect ? 'a' : '-'),'s');
3409 WriteServ(user->fd,"244 %s H * * %s",user->nick,LinkBlocks[i].Name.c_str());
3411 WriteServ(user->fd,"219 %s %c :End of /STATS report",user->nick,statschar);
3412 WriteOpers("*** Notice: Stats '%c' requested by %s (%s@%s)",statschar,user->nick,user->ident,user->host);
3418 virtual int OnPreCommand(const std::string &command, char **parameters, int pcnt, userrec *user, bool validated)
3420 /* If the command doesnt appear to be valid, we dont want to mess with it. */
3424 if (command == "CONNECT")
3426 return this->HandleConnect(parameters,pcnt,user);
3428 else if (command == "SQUIT")
3430 return this->HandleSquit(parameters,pcnt,user);
3432 else if (command == "MAP")
3434 this->HandleMap(parameters,pcnt,user);
3437 else if ((command == "TIME") && (pcnt > 0))
3439 return this->HandleTime(parameters,pcnt,user);
3441 else if (command == "LUSERS")
3443 this->HandleLusers(parameters,pcnt,user);
3446 else if (command == "LINKS")
3448 this->HandleLinks(parameters,pcnt,user);
3451 else if (command == "WHOIS")
3456 return this->HandleRemoteWhois(parameters,pcnt,user);
3459 else if ((command == "VERSION") && (pcnt > 0))
3461 this->HandleVersion(parameters,pcnt,user);
3464 else if (Srv->IsValidModuleCommand(command, pcnt, user))
3466 // this bit of code cleverly routes all module commands
3467 // to all remote severs *automatically* so that modules
3468 // can just handle commands locally, without having
3469 // to have any special provision in place for remote
3470 // commands and linking protocols.
3471 std::deque<std::string> params;
3473 for (int j = 0; j < pcnt; j++)
3475 if (strchr(parameters[j],' '))
3477 params.push_back(":" + std::string(parameters[j]));
3481 params.push_back(std::string(parameters[j]));
3484 log(DEBUG,"Globally route '%s'",command.c_str());
3485 DoOneToMany(user->nick,command,params);
3490 virtual void OnGetServerDescription(const std::string &servername,std::string &description)
3492 TreeServer* s = FindServer(servername);
3495 description = s->GetDesc();
3499 virtual void OnUserInvite(userrec* source,userrec* dest,chanrec* channel)
3501 if (source->fd > -1)
3503 std::deque<std::string> params;
3504 params.push_back(dest->nick);
3505 params.push_back(channel->name);
3506 DoOneToMany(source->nick,"INVITE",params);
3510 virtual void OnPostLocalTopicChange(userrec* user, chanrec* chan, const std::string &topic)
3512 std::deque<std::string> params;
3513 params.push_back(chan->name);
3514 params.push_back(":"+topic);
3515 DoOneToMany(user->nick,"TOPIC",params);
3518 virtual void OnWallops(userrec* user, const std::string &text)
3522 std::deque<std::string> params;
3523 params.push_back(":"+text);
3524 DoOneToMany(user->nick,"WALLOPS",params);
3528 virtual void OnUserNotice(userrec* user, void* dest, int target_type, const std::string &text, char status)
3530 if (target_type == TYPE_USER)
3532 userrec* d = (userrec*)dest;
3533 if ((d->fd < 0) && (user->fd > -1))
3535 std::deque<std::string> params;
3537 params.push_back(d->nick);
3538 params.push_back(":"+text);
3539 DoOneToOne(user->nick,"NOTICE",params,d->server);
3546 chanrec *c = (chanrec*)dest;
3547 std::string cname = c->name;
3549 cname = status + cname;
3550 std::deque<TreeServer*> list;
3551 GetListOfServersForChannel(c,list);
3552 unsigned int ucount = list.size();
3553 for (unsigned int i = 0; i < ucount; i++)
3555 TreeSocket* Sock = list[i]->GetSocket();
3557 Sock->WriteLine(":"+std::string(user->nick)+" NOTICE "+cname+" :"+text);
3563 virtual void OnUserMessage(userrec* user, void* dest, int target_type, const std::string &text, char status)
3565 if (target_type == TYPE_USER)
3567 // route private messages which are targetted at clients only to the server
3568 // which needs to receive them
3569 userrec* d = (userrec*)dest;
3570 if ((d->fd < 0) && (user->fd > -1))
3572 std::deque<std::string> params;
3574 params.push_back(d->nick);
3575 params.push_back(":"+text);
3576 DoOneToOne(user->nick,"PRIVMSG",params,d->server);
3583 chanrec *c = (chanrec*)dest;
3584 std::string cname = c->name;
3586 cname = status + cname;
3587 std::deque<TreeServer*> list;
3588 GetListOfServersForChannel(c,list);
3589 unsigned int ucount = list.size();
3590 for (unsigned int i = 0; i < ucount; i++)
3592 TreeSocket* Sock = list[i]->GetSocket();
3594 Sock->WriteLine(":"+std::string(user->nick)+" PRIVMSG "+cname+" :"+text);
3600 virtual void OnBackgroundTimer(time_t curtime)
3602 AutoConnectServers(curtime);
3603 DoPingChecks(curtime);
3606 virtual void OnUserJoin(userrec* user, chanrec* channel)
3608 // Only do this for local users
3611 std::deque<std::string> params;
3613 params.push_back(channel->name);
3615 if (channel->GetUserCounter() > 1)
3617 // not the first in the channel
3618 DoOneToMany(user->nick,"JOIN",params);
3622 // first in the channel, set up their permissions
3623 // and the channel TS with FJOIN.
3625 snprintf(ts,24,"%lu",(unsigned long)channel->age);
3627 params.push_back(channel->name);
3628 params.push_back(ts);
3629 params.push_back("@"+std::string(user->nick));
3630 DoOneToMany(Srv->GetServerName(),"FJOIN",params);
3635 virtual void OnChangeHost(userrec* user, const std::string &newhost)
3637 // only occurs for local clients
3638 if (user->registered != 7)
3640 std::deque<std::string> params;
3641 params.push_back(newhost);
3642 DoOneToMany(user->nick,"FHOST",params);
3645 virtual void OnChangeName(userrec* user, const std::string &gecos)
3647 // only occurs for local clients
3648 if (user->registered != 7)
3650 std::deque<std::string> params;
3651 params.push_back(gecos);
3652 DoOneToMany(user->nick,"FNAME",params);
3655 virtual void OnUserPart(userrec* user, chanrec* channel, const std::string &partmessage)
3659 std::deque<std::string> params;
3660 params.push_back(channel->name);
3661 if (partmessage != "")
3662 params.push_back(":"+partmessage);
3663 DoOneToMany(user->nick,"PART",params);
3667 virtual void OnUserConnect(userrec* user)
3669 char agestr[MAXBUF];
3672 std::deque<std::string> params;
3673 snprintf(agestr,MAXBUF,"%lu",(unsigned long)user->age);
3674 params.push_back(agestr);
3675 params.push_back(user->nick);
3676 params.push_back(user->host);
3677 params.push_back(user->dhost);
3678 params.push_back(user->ident);
3679 params.push_back("+"+std::string(user->modes));
3680 params.push_back((char*)inet_ntoa(user->ip4));
3681 params.push_back(":"+std::string(user->fullname));
3682 DoOneToMany(Srv->GetServerName(),"NICK",params);
3684 // User is Local, change needs to be reflected!
3685 TreeServer* SourceServer = FindServer(user->server);
3688 SourceServer->AddUserCount();
3694 virtual void OnUserQuit(userrec* user, const std::string &reason)
3696 if ((user->fd > -1) && (user->registered == 7))
3698 std::deque<std::string> params;
3699 params.push_back(":"+reason);
3700 DoOneToMany(user->nick,"QUIT",params);
3702 // Regardless, We need to modify the user Counts..
3703 TreeServer* SourceServer = FindServer(user->server);
3706 SourceServer->DelUserCount();
3707 SourceServer->DelUser(user);
3712 virtual void OnUserPostNick(userrec* user, const std::string &oldnick)
3716 std::deque<std::string> params;
3717 params.push_back(user->nick);
3718 DoOneToMany(oldnick,"NICK",params);
3722 virtual void OnUserKick(userrec* source, userrec* user, chanrec* chan, const std::string &reason)
3724 if ((source) && (source->fd > -1))
3726 std::deque<std::string> params;
3727 params.push_back(chan->name);
3728 params.push_back(user->nick);
3729 params.push_back(":"+reason);
3730 DoOneToMany(source->nick,"KICK",params);
3734 std::deque<std::string> params;
3735 params.push_back(chan->name);
3736 params.push_back(user->nick);
3737 params.push_back(":"+reason);
3738 DoOneToMany(Srv->GetServerName(),"KICK",params);
3742 virtual void OnRemoteKill(userrec* source, userrec* dest, const std::string &reason)
3744 std::deque<std::string> params;
3745 params.push_back(dest->nick);
3746 params.push_back(":"+reason);
3747 DoOneToMany(source->nick,"KILL",params);
3748 /* NOTE: We must remove the user from the servers list here.
3749 * If we do not, there is a chance the user could hang around
3750 * in the list if there is a desync for example (this would
3752 * Part of the 'random crash on netsplit' tidying up. -Brain
3754 TreeServer* n = FindServer(dest->server);
3761 virtual void OnRehash(const std::string ¶meter)
3763 if (parameter != "")
3765 std::deque<std::string> params;
3766 params.push_back(parameter);
3767 DoOneToMany(Srv->GetServerName(),"REHASH",params);
3769 if (Srv->MatchText(Srv->GetServerName(),parameter))
3771 Srv->SendOpers("*** Remote rehash initiated from server \002"+Srv->GetServerName()+"\002.");
3772 Srv->RehashServer();
3775 ReadConfiguration(false);
3778 // note: the protocol does not allow direct umode +o except
3779 // via NICK with 8 params. sending OPERTYPE infers +o modechange
3781 virtual void OnOper(userrec* user, const std::string &opertype)
3785 std::deque<std::string> params;
3786 params.push_back(opertype);
3787 DoOneToMany(user->nick,"OPERTYPE",params);
3791 void OnLine(userrec* source, const std::string &host, bool adding, char linetype, long duration, const std::string &reason)
3793 if (source->fd > -1)
3796 snprintf(type,8,"%cLINE",linetype);
3797 std::string stype = type;
3800 char sduration[MAXBUF];
3801 snprintf(sduration,MAXBUF,"%ld",duration);
3802 std::deque<std::string> params;
3803 params.push_back(host);
3804 params.push_back(sduration);
3805 params.push_back(":"+reason);
3806 DoOneToMany(source->nick,stype,params);
3810 std::deque<std::string> params;
3811 params.push_back(host);
3812 DoOneToMany(source->nick,stype,params);
3817 virtual void OnAddGLine(long duration, userrec* source, const std::string &reason, const std::string &hostmask)
3819 OnLine(source,hostmask,true,'G',duration,reason);
3822 virtual void OnAddZLine(long duration, userrec* source, const std::string &reason, const std::string &ipmask)
3824 OnLine(source,ipmask,true,'Z',duration,reason);
3827 virtual void OnAddQLine(long duration, userrec* source, const std::string &reason, const std::string &nickmask)
3829 OnLine(source,nickmask,true,'Q',duration,reason);
3832 virtual void OnAddELine(long duration, userrec* source, const std::string &reason, const std::string &hostmask)
3834 OnLine(source,hostmask,true,'E',duration,reason);
3837 virtual void OnDelGLine(userrec* source, const std::string &hostmask)
3839 OnLine(source,hostmask,false,'G',0,"");
3842 virtual void OnDelZLine(userrec* source, const std::string &ipmask)
3844 OnLine(source,ipmask,false,'Z',0,"");
3847 virtual void OnDelQLine(userrec* source, const std::string &nickmask)
3849 OnLine(source,nickmask,false,'Q',0,"");
3852 virtual void OnDelELine(userrec* source, const std::string &hostmask)
3854 OnLine(source,hostmask,false,'E',0,"");
3857 virtual void OnMode(userrec* user, void* dest, int target_type, const std::string &text)
3859 if ((user->fd > -1) && (user->registered == 7))
3861 if (target_type == TYPE_USER)
3863 userrec* u = (userrec*)dest;
3864 std::deque<std::string> params;
3865 params.push_back(u->nick);
3866 params.push_back(text);
3867 DoOneToMany(user->nick,"MODE",params);
3871 chanrec* c = (chanrec*)dest;
3872 std::deque<std::string> params;
3873 params.push_back(c->name);
3874 params.push_back(text);
3875 DoOneToMany(user->nick,"MODE",params);
3880 virtual void OnSetAway(userrec* user)
3884 std::deque<std::string> params;
3885 params.push_back(":"+std::string(user->awaymsg));
3886 DoOneToMany(user->nick,"AWAY",params);
3890 virtual void OnCancelAway(userrec* user)
3894 std::deque<std::string> params;
3896 DoOneToMany(user->nick,"AWAY",params);
3900 virtual void ProtoSendMode(void* opaque, int target_type, void* target, const std::string &modeline)
3902 TreeSocket* s = (TreeSocket*)opaque;
3905 if (target_type == TYPE_USER)
3907 userrec* u = (userrec*)target;
3908 s->WriteLine(":"+Srv->GetServerName()+" FMODE "+u->nick+" "+modeline);
3912 chanrec* c = (chanrec*)target;
3913 s->WriteLine(":"+Srv->GetServerName()+" FMODE "+c->name+" "+modeline);
3918 virtual void ProtoSendMetaData(void* opaque, int target_type, void* target, const std::string &extname, const std::string &extdata)
3920 TreeSocket* s = (TreeSocket*)opaque;
3923 if (target_type == TYPE_USER)
3925 userrec* u = (userrec*)target;
3926 s->WriteLine(":"+Srv->GetServerName()+" METADATA "+u->nick+" "+extname+" :"+extdata);
3928 else if (target_type == TYPE_OTHER)
3930 s->WriteLine(":"+Srv->GetServerName()+" METADATA * "+extname+" :"+extdata);
3932 else if (target_type == TYPE_CHANNEL)
3934 chanrec* c = (chanrec*)target;
3935 s->WriteLine(":"+Srv->GetServerName()+" METADATA "+c->name+" "+extname+" :"+extdata);
3940 virtual void OnEvent(Event* event)
3942 if (event->GetEventID() == "send_metadata")
3944 std::deque<std::string>* params = (std::deque<std::string>*)event->GetData();
3945 if (params->size() < 3)
3947 (*params)[2] = ":" + (*params)[2];
3948 DoOneToMany(Srv->GetServerName(),"METADATA",*params);
3952 virtual ~ModuleSpanningTree()
3956 virtual Version GetVersion()
3958 return Version(1,0,0,0,VF_STATIC|VF_VENDOR);
3961 void Implements(char* List)
3963 List[I_OnPreCommand] = List[I_OnGetServerDescription] = List[I_OnUserInvite] = List[I_OnPostLocalTopicChange] = 1;
3964 List[I_OnWallops] = List[I_OnUserNotice] = List[I_OnUserMessage] = List[I_OnBackgroundTimer] = 1;
3965 List[I_OnUserJoin] = List[I_OnChangeHost] = List[I_OnChangeName] = List[I_OnUserPart] = List[I_OnUserConnect] = 1;
3966 List[I_OnUserQuit] = List[I_OnUserPostNick] = List[I_OnUserKick] = List[I_OnRemoteKill] = List[I_OnRehash] = 1;
3967 List[I_OnOper] = List[I_OnAddGLine] = List[I_OnAddZLine] = List[I_OnAddQLine] = List[I_OnAddELine] = 1;
3968 List[I_OnDelGLine] = List[I_OnDelZLine] = List[I_OnDelQLine] = List[I_OnDelELine] = List[I_ProtoSendMode] = List[I_OnMode] = 1;
3969 List[I_OnStats] = List[I_ProtoSendMetaData] = List[I_OnEvent] = List[I_OnSetAway] = List[I_OnCancelAway] = 1;
3972 /* It is IMPORTANT that m_spanningtree is the last module in the chain
3973 * so that any activity it sees is FINAL, e.g. we arent going to send out
3974 * a NICK message before m_cloaking has finished putting the +x on the user,
3976 * Therefore, we return PRIORITY_LAST to make sure we end up at the END of
3977 * the module call queue.
3979 Priority Prioritize()
3981 return PRIORITY_LAST;
3986 class ModuleSpanningTreeFactory : public ModuleFactory
3989 ModuleSpanningTreeFactory()
3993 ~ModuleSpanningTreeFactory()
3997 virtual Module * CreateModule(Server* Me)
3999 TreeProtocolModule = new ModuleSpanningTree(Me);
4000 return TreeProtocolModule;
4006 extern "C" void * init_module( void )
4008 return new ModuleSpanningTreeFactory;