1 /* +------------------------------------+
2 * | Inspire Internet Relay Chat Daemon |
3 * +------------------------------------+
5 * InspIRCd is copyright (C) 2002-2006 ChatSpike-Dev.
7 * <brain@chatspike.net>
8 * <Craig@chatspike.net>
10 * Written by Craig Edwards, Craig McLure, and others.
11 * This program is free but copyrighted software; see
12 * the file COPYING for details.
14 * ---------------------------------------------------
17 /* $ModDesc: Povides a spanning tree server link protocol */
19 #include "configreader.h"
23 #include "commands/cmd_whois.h"
24 #include "commands/cmd_stats.h"
31 /** If you make a change which breaks the protocol, increment this.
32 * If you completely change the protocol, completely change the number.
34 * IMPORTANT: If you make changes, document your changes here, without fail:
35 * http://www.inspircd.org/wiki/List_of_protocol_changes_between_versions
37 * Failure to document your protocol changes will result in a painfully
38 * painful death by pain. You have been warned.
40 const long ProtocolVersion = 1102;
43 * The server list in InspIRCd is maintained as two structures
44 * which hold the data in different ways. Most of the time, we
45 * want to very quicky obtain three pieces of information:
47 * (1) The information on a server
48 * (2) The information on the server we must send data through
49 * to actually REACH the server we're after
50 * (3) Potentially, the child/parent objects of this server
52 * The InspIRCd spanning protocol provides easy access to these
53 * by storing the data firstly in a recursive structure, where
54 * each item references its parent item, and a dynamic list
55 * of child items, and another structure which stores the items
56 * hashed, linearly. This means that if we want to find a server
57 * by name quickly, we can look it up in the hash, avoiding
58 * any O(n) lookups. If however, during a split or sync, we want
59 * to apply an operation to a server, and any of its child objects
60 * we can resort to recursion to walk the tree structure.
61 * Any socket can have one of five states at any one time.
62 * The LISTENER state indicates a socket which is listening
63 * for connections. It cannot receive data itself, only incoming
65 * The CONNECTING state indicates an outbound socket which is
66 * waiting to be writeable.
67 * The WAIT_AUTH_1 state indicates the socket is outbound and
68 * has successfully connected, but has not yet sent and received
70 * The WAIT_AUTH_2 state indicates that the socket is inbound
71 * (allocated by a LISTENER) but has not yet sent and received
73 * The CONNECTED state represents a fully authorized, fully
76 enum ServerState { LISTENER, CONNECTING, WAIT_AUTH_1, WAIT_AUTH_2, CONNECTED };
78 /* Foward declarations */
82 class ModuleSpanningTree;
84 /* This hash_map holds the hash equivalent of the server
85 * tree, used for rapid linear lookups.
87 typedef nspace::hash_map<std::string, TreeServer*, nspace::hash<string>, irc::StrHashComp> server_hash;
89 typedef std::map<TreeServer*,TreeServer*> TreeServerList;
91 /** The Link class might as well be a struct,
92 * but this is C++ and we don't believe in structs (!).
93 * It holds the entire information of one <link>
94 * tag from the main config file. We maintain a list
95 * of them, and populate the list on rehash/load.
97 class Link : public classbase
103 std::string SendPass;
104 std::string RecvPass;
105 unsigned long AutoConnect;
106 time_t NextConnectTime;
107 std::string EncryptionKey;
108 bool HiddenFromStats;
109 std::string FailOver;
113 /** Contains helper functions and variables for this module,
114 * and keeps them out of the global namespace
116 class SpanningTreeUtilities
121 InspIRCd* ServerInstance;
125 ModuleSpanningTree* Creator;
126 /** Flatten links and /MAP for non-opers
129 /** Hide U-Lined servers in /MAP and /LINKS
132 /** Announce TS changes to channels on merge
134 bool AnnounceTSChange;
135 /** Synchronize timestamps between servers
138 /** Socket bindings for listening sockets
140 std::vector<TreeSocket*> Bindings;
141 /** This variable represents the root of the server tree
143 TreeServer *TreeRoot;
144 /** IPs allowed to link to us
146 std::vector<std::string> ValidIPs;
147 /** Hash of currently connected servers by name
149 server_hash serverlist;
150 /** Holds the data from the <link> tags in the conf
152 std::vector<Link> LinkBlocks;
154 /** Initialise utility class
156 SpanningTreeUtilities(InspIRCd* Instance, ModuleSpanningTree* Creator);
157 /** Destroy class and free listeners etc
159 ~SpanningTreeUtilities();
160 /** Send a message from this server to one other local or remote
162 bool DoOneToOne(const std::string &prefix, const std::string &command, std::deque<std::string> ¶ms, std::string target);
163 /** Send a message from this server to all but one other, local or remote
165 bool DoOneToAllButSender(const std::string &prefix, const std::string &command, std::deque<std::string> ¶ms, std::string omit);
166 /** Send a message from this server to all but one other, local or remote
168 bool DoOneToAllButSender(const char* prefix, const char* command, std::deque<std::string> ¶ms, std::string omit);
169 /** Send a message from this server to all others
171 bool DoOneToMany(const std::string &prefix, const std::string &command, std::deque<std::string> ¶ms);
172 /** Send a message from this server to all others
174 bool DoOneToMany(const char* prefix, const char* command, std::deque<std::string> ¶ms);
175 /** Send a message from this server to all others, without doing any processing on the command (e.g. send it as-is with colons and all)
177 bool DoOneToAllButSenderRaw(const std::string &data, const std::string &omit, const std::string &prefix, const irc::string &command, std::deque<std::string> ¶ms);
178 /** Read the spanningtree module's tags from the config file
180 void ReadConfiguration(bool rebind);
181 /** Add a server to the server list for GetListOfServersForChannel
183 void AddThisServer(TreeServer* server, TreeServerList &list);
184 /** Compile a list of servers which contain members of channel c
186 void GetListOfServersForChannel(chanrec* c, TreeServerList &list, char status, const CUList &exempt_list);
187 /** Find a server by name
189 TreeServer* FindServer(const std::string &ServerName);
190 /** Find a route to a server by name
192 TreeServer* BestRouteTo(const std::string &ServerName);
193 /** Find a server by glob mask
195 TreeServer* FindServerMask(const std::string &ServerName);
196 /** Returns true if this is a server name we recognise
198 bool IsServer(const std::string &ServerName);
199 /** Attempt to connect to the failover link of link x
201 void DoFailOver(Link* x);
202 /** Find a link tag from a server name
204 Link* FindLink(const std::string& name);
208 /** Each server in the tree is represented by one class of
209 * type TreeServer. A locally connected TreeServer can
210 * have a class of type TreeSocket associated with it, for
211 * remote servers, the TreeSocket entry will be NULL.
212 * Each server also maintains a pointer to its parent
213 * (NULL if this server is ours, at the top of the tree)
214 * and a pointer to its "Route" (see the comments in the
215 * constructors below), and also a dynamic list of pointers
216 * to its children which can be iterated recursively
217 * if required. Creating or deleting objects of type
218 i* TreeServer automatically maintains the hash_map of
219 * TreeServer items, deleting and inserting them as they
220 * are created and destroyed.
222 class TreeServer : public classbase
224 InspIRCd* ServerInstance; /* Creator */
225 TreeServer* Parent; /* Parent entry */
226 TreeServer* Route; /* Route entry */
227 std::vector<TreeServer*> Children; /* List of child objects */
228 irc::string ServerName; /* Server's name */
229 std::string ServerDesc; /* Server's description */
230 std::string VersionString; /* Version string or empty string */
231 int UserCount; /* Not used in this version */
232 int OperCount; /* Not used in this version */
233 TreeSocket* Socket; /* For directly connected servers this points at the socket object */
234 time_t NextPing; /* After this time, the server should be PINGed*/
235 bool LastPingWasGood; /* True if the server responded to the last PING with a PONG */
236 SpanningTreeUtilities* Utils; /* Utility class */
240 /** We don't use this constructor. Its a dummy, and won't cause any insertion
241 * of the TreeServer into the hash_map. See below for the two we DO use.
243 TreeServer(SpanningTreeUtilities* Util, InspIRCd* Instance) : ServerInstance(Instance), Utils(Util)
249 UserCount = OperCount = 0;
250 VersionString = ServerInstance->GetVersionString();
253 /** We use this constructor only to create the 'root' item, Utils->TreeRoot, which
254 * represents our own server. Therefore, it has no route, no parent, and
255 * no socket associated with it. Its version string is our own local version.
257 TreeServer(SpanningTreeUtilities* Util, InspIRCd* Instance, std::string Name, std::string Desc) : ServerInstance(Instance), ServerName(Name.c_str()), ServerDesc(Desc), Utils(Util)
261 UserCount = ServerInstance->UserCount();
262 OperCount = ServerInstance->OperCount();
263 VersionString = ServerInstance->GetVersionString();
265 Socket = NULL; /* Fix by brain */
269 /** When we create a new server, we call this constructor to initialize it.
270 * This constructor initializes the server's Route and Parent, and sets up
271 * its ping counters so that it will be pinged one minute from now.
273 TreeServer(SpanningTreeUtilities* Util, InspIRCd* Instance, std::string Name, std::string Desc, TreeServer* Above, TreeSocket* Sock)
274 : ServerInstance(Instance), Parent(Above), ServerName(Name.c_str()), ServerDesc(Desc), Socket(Sock), Utils(Util)
277 UserCount = OperCount = 0;
278 this->SetNextPingTime(time(NULL) + 60);
281 /* find the 'route' for this server (e.g. the one directly connected
282 * to the local server, which we can use to reach it)
284 * In the following example, consider we have just added a TreeServer
285 * class for server G on our network, of which we are server A.
286 * To route traffic to G (marked with a *) we must send the data to
287 * B (marked with a +) so this algorithm initializes the 'Route'
288 * value to point at whichever server traffic must be routed through
289 * to get here. If we were to try this algorithm with server B,
290 * the Route pointer would point at its own object ('this').
300 * We only run this algorithm when a server is created, as
301 * the routes remain constant while ever the server exists, and
302 * do not need to be re-calculated.
306 if (Route == Utils->TreeRoot)
312 while (this->Route->GetParent() != Utils->TreeRoot)
314 this->Route = Route->GetParent();
318 /* Because recursive code is slow and takes a lot of resources,
319 * we store two representations of the server tree. The first
320 * is a recursive structure where each server references its
321 * children and its parent, which is used for netbursts and
322 * netsplits to dump the whole dataset to the other server,
323 * and the second is used for very fast lookups when routing
324 * messages and is instead a hash_map, where each item can
325 * be referenced by its server name. The AddHashEntry()
326 * call below automatically inserts each TreeServer class
327 * into the hash_map as it is created. There is a similar
328 * maintainance call in the destructor to tidy up deleted
332 this->AddHashEntry();
335 int QuitUsers(const std::string &reason)
337 ServerInstance->Log(DEBUG,"Removing all users from server %s",this->ServerName.c_str());
338 const char* reason_s = reason.c_str();
339 std::vector<userrec*> time_to_die;
340 for (user_hash::iterator n = ServerInstance->clientlist.begin(); n != ServerInstance->clientlist.end(); n++)
342 if (!strcmp(n->second->server, this->ServerName.c_str()))
344 time_to_die.push_back(n->second);
347 for (std::vector<userrec*>::iterator n = time_to_die.begin(); n != time_to_die.end(); n++)
349 userrec* a = (userrec*)*n;
350 ServerInstance->Log(DEBUG,"Kill %s fd=%d",a->nick,a->GetFd());
352 userrec::QuitUser(ServerInstance,a,reason_s);
354 return time_to_die.size();
357 /** This method is used to add the structure to the
358 * hash_map for linear searches. It is only called
359 * by the constructors.
363 server_hash::iterator iter = Utils->serverlist.find(this->ServerName.c_str());
364 if (iter == Utils->serverlist.end())
365 Utils->serverlist[this->ServerName.c_str()] = this;
368 /** This method removes the reference to this object
369 * from the hash_map which is used for linear searches.
370 * It is only called by the default destructor.
374 server_hash::iterator iter = Utils->serverlist.find(this->ServerName.c_str());
375 if (iter != Utils->serverlist.end())
376 Utils->serverlist.erase(iter);
379 /** These accessors etc should be pretty self-
382 TreeServer* GetRoute()
387 std::string GetName()
389 return ServerName.c_str();
392 std::string GetDesc()
397 std::string GetVersion()
399 return VersionString;
402 void SetNextPingTime(time_t t)
405 LastPingWasGood = false;
408 time_t NextPingTime()
413 bool AnsweredLastPing()
415 return LastPingWasGood;
420 LastPingWasGood = true;
443 TreeSocket* GetSocket()
448 TreeServer* GetParent()
453 void SetVersion(const std::string &Version)
455 VersionString = Version;
458 unsigned int ChildCount()
460 return Children.size();
463 TreeServer* GetChild(unsigned int n)
465 if (n < Children.size())
467 /* Make sure they cant request
468 * an out-of-range object. After
469 * all we know what these programmer
470 * types are like *grin*.
480 void AddChild(TreeServer* Child)
482 Children.push_back(Child);
485 bool DelChild(TreeServer* Child)
487 for (std::vector<TreeServer*>::iterator a = Children.begin(); a < Children.end(); a++)
498 /** Removes child nodes of this node, and of that node, etc etc.
499 * This is used during netsplits to automatically tidy up the
500 * server tree. It is slow, we don't use it for much else.
504 bool stillchildren = true;
505 while (stillchildren)
507 stillchildren = false;
508 for (std::vector<TreeServer*>::iterator a = Children.begin(); a < Children.end(); a++)
510 TreeServer* s = (TreeServer*)*a;
514 stillchildren = true;
523 /* We'd better tidy up after ourselves, eh? */
524 this->DelHashEntry();
528 /** Yay for fast searches!
529 * This is hundreds of times faster than recursion
530 * or even scanning a linked list, especially when
531 * there are more than a few servers to deal with.
534 TreeServer* SpanningTreeUtilities::FindServer(const std::string &ServerName)
536 server_hash::iterator iter;
537 iter = serverlist.find(ServerName.c_str());
538 if (iter != serverlist.end())
548 /** Returns the locally connected server we must route a
549 * message through to reach server 'ServerName'. This
550 * only applies to one-to-one and not one-to-many routing.
551 * See the comments for the constructor of TreeServer
554 TreeServer* SpanningTreeUtilities::BestRouteTo(const std::string &ServerName)
556 if (ServerName.c_str() == TreeRoot->GetName())
558 TreeServer* Found = FindServer(ServerName);
561 return Found->GetRoute();
569 /** Find the first server matching a given glob mask.
570 * Theres no find-using-glob method of hash_map [awwww :-(]
571 * so instead, we iterate over the list using an iterator
572 * and match each one until we get a hit. Yes its slow,
575 TreeServer* SpanningTreeUtilities::FindServerMask(const std::string &ServerName)
577 for (server_hash::iterator i = serverlist.begin(); i != serverlist.end(); i++)
579 if (match(i->first.c_str(),ServerName.c_str()))
585 /* A convenient wrapper that returns true if a server exists */
586 bool SpanningTreeUtilities::IsServer(const std::string &ServerName)
588 return (FindServer(ServerName) != NULL);
594 class cmd_rconnect : public command_t
597 SpanningTreeUtilities* Utils;
599 cmd_rconnect (InspIRCd* Instance, Module* Callback, SpanningTreeUtilities* Util) : command_t(Instance, "RCONNECT", 'o', 2), Creator(Callback), Utils(Util)
601 this->source = "m_spanningtree.so";
602 syntax = "<remote-server-mask> <servermask>";
605 CmdResult Handle (const char** parameters, int pcnt, userrec *user)
607 user->WriteServ("NOTICE %s :*** RCONNECT: Sending remote connect to \002%s\002 to connect server \002%s\002.",user->nick,parameters[0],parameters[1]);
608 /* Is this aimed at our server? */
609 if (ServerInstance->MatchText(ServerInstance->Config->ServerName,parameters[0]))
611 /* Yes, initiate the given connect */
612 ServerInstance->SNO->WriteToSnoMask('l',"Remote CONNECT from %s matching \002%s\002, connecting server \002%s\002",user->nick,parameters[0],parameters[1]);
614 para[0] = parameters[1];
615 std::string original_command = std::string("CONNECT ") + parameters[1];
616 Creator->OnPreCommand("CONNECT", para, 1, user, true, original_command);
627 /** Every SERVER connection inbound or outbound is represented by
628 * an object of type TreeSocket.
629 * TreeSockets, being inherited from InspSocket, can be tied into
630 * the core socket engine, and we cn therefore receive activity events
631 * for them, just like activex objects on speed. (yes really, that
632 * is a technical term!) Each of these which relates to a locally
633 * connected server is assocated with it, by hooking it onto a
634 * TreeSocket class using its constructor. In this way, we can
635 * maintain a list of servers, some of which are directly connected,
636 * some of which are not.
638 class TreeSocket : public InspSocket
640 SpanningTreeUtilities* Utils;
642 std::string in_buffer;
643 ServerState LinkState;
644 std::string InboundServerName;
645 std::string InboundDescription;
647 int num_lost_servers;
649 bool LastPingWasGood;
653 unsigned int keylength;
654 std::string ModuleList;
655 std::map<std::string,std::string> CapKeys;
659 /** Because most of the I/O gubbins are encapsulated within
660 * InspSocket, we just call the superclass constructor for
661 * most of the action, and append a few of our own values
664 TreeSocket(SpanningTreeUtilities* Util, InspIRCd* SI, std::string host, int port, bool listening, unsigned long maxtime)
665 : InspSocket(SI, host, port, listening, maxtime), Utils(Util)
668 this->LinkState = LISTENER;
670 this->ctx_out = NULL;
673 TreeSocket(SpanningTreeUtilities* Util, InspIRCd* SI, std::string host, int port, bool listening, unsigned long maxtime, std::string ServerName)
674 : InspSocket(SI, host, port, listening, maxtime), Utils(Util)
677 this->LinkState = CONNECTING;
679 this->ctx_out = NULL;
682 /** When a listening socket gives us a new file descriptor,
683 * we must associate it with a socket without creating a new
684 * connection. This constructor is used for this purpose.
686 TreeSocket(SpanningTreeUtilities* Util, InspIRCd* SI, int newfd, char* ip)
687 : InspSocket(SI, newfd, ip), Utils(Util)
689 this->LinkState = WAIT_AUTH_1;
691 this->ctx_out = NULL;
692 this->SendCapabilities();
703 void InitAES(std::string key,std::string SName)
710 Instance->Log(DEBUG,"Initialized AES key %s",key.c_str());
711 // key must be 16, 24, 32 etc bytes (multiple of 8)
712 keylength = key.length();
713 if (!(keylength == 16 || keylength == 24 || keylength == 32))
715 this->Instance->SNO->WriteToSnoMask('l',"\2ERROR\2: Key length for encryptionkey is not 16, 24 or 32 bytes in length!");
716 Instance->Log(DEBUG,"Key length not 16, 24 or 32 characters!");
720 if (this->GetState() != I_ERROR)
722 this->Instance->SNO->WriteToSnoMask('l',"\2AES\2: Initialized %d bit encryption to server %s",keylength*8,SName.c_str());
723 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\
724 \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);
725 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\
726 \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);
731 /** When an outbound connection finishes connecting, we receive
732 * this event, and must send our SERVER string to the other
733 * side. If the other side is happy, as outlined in the server
734 * to server docs on the inspircd.org site, the other side
735 * will then send back its own server string.
737 virtual bool OnConnected()
739 if (this->LinkState == CONNECTING)
741 /* we do not need to change state here. */
742 for (std::vector<Link>::iterator x = Utils->LinkBlocks.begin(); x < Utils->LinkBlocks.end(); x++)
744 if (x->Name == this->myhost)
746 this->Instance->SNO->WriteToSnoMask('l',"Connection to \2"+myhost+"\2["+(x->HiddenFromStats ? "<hidden>" : this->GetIP())+"] started.");
747 this->SendCapabilities();
748 if (x->EncryptionKey != "")
750 if (!(x->EncryptionKey.length() == 16 || x->EncryptionKey.length() == 24 || x->EncryptionKey.length() == 32))
752 this->Instance->SNO->WriteToSnoMask('l',"\2WARNING\2: Your encryption key is NOT 16, 24 or 32 characters in length, encryption will \2NOT\2 be enabled.");
756 this->WriteLine(std::string("AES ")+this->Instance->Config->ServerName);
757 this->InitAES(x->EncryptionKey,x->Name.c_str());
760 /* found who we're supposed to be connecting to, send the neccessary gubbins. */
761 this->WriteLine(std::string("SERVER ")+this->Instance->Config->ServerName+" "+x->SendPass+" 0 :"+this->Instance->Config->ServerDesc);
766 /* There is a (remote) chance that between the /CONNECT and the connection
767 * being accepted, some muppet has removed the <link> block and rehashed.
768 * If that happens the connection hangs here until it's closed. Unlikely
769 * and rather harmless.
771 this->Instance->SNO->WriteToSnoMask('l',"Connection to \2"+myhost+"\2 lost link tag(!)");
775 virtual void OnError(InspSocketError e)
777 /* We don't handle this method, because all our
778 * dirty work is done in OnClose() (see below)
779 * which is still called on error conditions too.
781 if (e == I_ERR_CONNECT)
783 this->Instance->SNO->WriteToSnoMask('l',"Connection failed: Connection to \002"+myhost+"\002 refused");
784 Link* MyLink = Utils->FindLink(myhost);
786 Utils->DoFailOver(MyLink);
790 virtual int OnDisconnect()
792 /* For the same reason as above, we don't
793 * handle OnDisconnect()
798 /** Recursively send the server tree with distances as hops.
799 * This is used during network burst to inform the other server
800 * (and any of ITS servers too) of what servers we know about.
801 * If at any point any of these servers already exist on the other
802 * end, our connection may be terminated. The hopcounts given
803 * by this function are relative, this doesn't matter so long as
804 * they are all >1, as all the remote servers re-calculate them
805 * to be relative too, with themselves as hop 0.
807 void SendServers(TreeServer* Current, TreeServer* s, int hops)
810 for (unsigned int q = 0; q < Current->ChildCount(); q++)
812 TreeServer* recursive_server = Current->GetChild(q);
813 if (recursive_server != s)
815 snprintf(command,1024,":%s SERVER %s * %d :%s",Current->GetName().c_str(),recursive_server->GetName().c_str(),hops,recursive_server->GetDesc().c_str());
816 this->WriteLine(command);
817 this->WriteLine(":"+recursive_server->GetName()+" VERSION :"+recursive_server->GetVersion());
818 /* down to next level */
819 this->SendServers(recursive_server, s, hops+1);
824 std::string MyCapabilities()
826 std::vector<std::string> modlist;
827 std::string capabilities = "";
829 for (int i = 0; i <= this->Instance->GetModuleCount(); i++)
831 if (this->Instance->modules[i]->GetVersion().Flags & VF_COMMON)
832 modlist.push_back(this->Instance->Config->module_names[i]);
834 sort(modlist.begin(),modlist.end());
835 for (unsigned int i = 0; i < modlist.size(); i++)
838 capabilities = capabilities + ",";
839 capabilities = capabilities + modlist[i];
844 void SendCapabilities()
846 irc::commasepstream modulelist(MyCapabilities());
848 this->WriteLine("CAPAB START");
850 /* Send module names, split at 509 length */
851 std::string item = "*";
852 std::string line = "CAPAB MODULES ";
853 while ((item = modulelist.GetToken()) != "")
855 if (line.length() + item.length() + 1 > 509)
857 this->WriteLine(line);
858 line = "CAPAB MODULES ";
861 if (line != "CAPAB MODULES ")
866 if (line != "CAPAB MODULES ")
867 this->WriteLine(line);
874 #ifdef SUPPORT_IP6LINKS
877 this->WriteLine("CAPAB CAPABILITIES :NICKMAX="+ConvToStr(NICKMAX)+" HALFOP="+ConvToStr(this->Instance->Config->AllowHalfop)+" CHANMAX="+ConvToStr(CHANMAX)+" MAXMODES="+ConvToStr(MAXMODES)+" IDENTMAX="+ConvToStr(IDENTMAX)+" MAXQUIT="+ConvToStr(MAXQUIT)+" MAXTOPIC="+ConvToStr(MAXTOPIC)+" MAXKICK="+ConvToStr(MAXKICK)+" MAXGECOS="+ConvToStr(MAXGECOS)+" MAXAWAY="+ConvToStr(MAXAWAY)+" IP6NATIVE="+ConvToStr(ip6)+" IP6SUPPORT="+ConvToStr(ip6support)+" PROTOCOL="+ConvToStr(ProtocolVersion));
879 this->WriteLine("CAPAB END");
882 /* Check a comma seperated list for an item */
883 bool HasItem(const std::string &list, const std::string &item)
885 irc::commasepstream seplist(list);
887 std::string item2 = "*";
888 while ((item2 = seplist.GetToken()) != "")
897 /* Isolate and return the elements that are different between two comma seperated lists */
898 std::string ListDifference(const std::string &one, const std::string &two)
900 irc::commasepstream list_one(one);
901 std::string item = "*";
902 std::string result = "";
903 while ((item = list_one.GetToken()) != "")
905 if (!HasItem(two, item))
914 bool Capab(const std::deque<std::string> ¶ms)
916 if (params.size() < 1)
918 this->WriteLine("ERROR :Invalid number of parameters for CAPAB - Mismatched version");
922 if (params[0] == "START")
924 this->ModuleList = "";
925 this->CapKeys.clear();
927 else if (params[0] == "END")
929 std::string reason = "";
931 #ifdef SUPPORT_IP6LINKS
934 /* Compare ModuleList and check CapKeys...
935 * Maybe this could be tidier? -- Brain
937 if ((this->ModuleList != this->MyCapabilities()) && (this->ModuleList.length()))
939 std::string diff = ListDifference(this->ModuleList, this->MyCapabilities());
942 diff = "your server:" + ListDifference(this->MyCapabilities(), this->ModuleList);
946 diff = "this server:" + diff;
948 if (diff.length() == 12)
949 reason = "Module list in CAPAB is not alphabetically ordered, cannot compare lists.";
951 reason = "Modules loaded on these servers are not correctly matched, these modules are not loaded on " + diff;
954 if (((this->CapKeys.find("IP6SUPPORT") == this->CapKeys.end()) && (ip6support)) || ((this->CapKeys.find("IP6SUPPORT") != this->CapKeys.end()) && (this->CapKeys.find("IP6SUPPORT")->second != ConvToStr(ip6support))))
955 reason = "We don't both support linking to IPV6 servers";
957 if (((this->CapKeys.find("IP6NATIVE") != this->CapKeys.end()) && (this->CapKeys.find("IP6NATIVE")->second == "1")) && (!ip6support))
958 reason = "The remote server is IPV6 native, and we don't support linking to IPV6 servers";
960 if (((this->CapKeys.find("NICKMAX") == this->CapKeys.end()) || ((this->CapKeys.find("NICKMAX") != this->CapKeys.end()) && (this->CapKeys.find("NICKMAX")->second != ConvToStr(NICKMAX)))))
961 reason = "Maximum nickname lengths differ or remote nickname length not specified";
963 if (((this->CapKeys.find("PROTOCOL") == this->CapKeys.end()) || ((this->CapKeys.find("PROTOCOL") != this->CapKeys.end()) && (this->CapKeys.find("PROTOCOL")->second != ConvToStr(ProtocolVersion)))))
965 if (this->CapKeys.find("PROTOCOL") != this->CapKeys.end())
967 reason = "Mismatched protocol versions "+this->CapKeys.find("PROTOCOL")->second+" and "+ConvToStr(ProtocolVersion);
971 reason = "Protocol version not specified";
975 if (((this->CapKeys.find("HALFOP") == this->CapKeys.end()) && (Instance->Config->AllowHalfop)) || ((this->CapKeys.find("HALFOP") != this->CapKeys.end()) && (this->CapKeys.find("HALFOP")->second != ConvToStr(Instance->Config->AllowHalfop))))
976 reason = "We don't both have halfop support enabled/disabled identically";
978 if (((this->CapKeys.find("IDENTMAX") == this->CapKeys.end()) || ((this->CapKeys.find("IDENTMAX") != this->CapKeys.end()) && (this->CapKeys.find("IDENTMAX")->second != ConvToStr(IDENTMAX)))))
979 reason = "Maximum ident lengths differ or remote ident length not specified";
981 if (((this->CapKeys.find("CHANMAX") == this->CapKeys.end()) || ((this->CapKeys.find("CHANMAX") != this->CapKeys.end()) && (this->CapKeys.find("CHANMAX")->second != ConvToStr(CHANMAX)))))
982 reason = "Maximum channel lengths differ or remote channel length not specified";
984 if (((this->CapKeys.find("MAXMODES") == this->CapKeys.end()) || ((this->CapKeys.find("MAXMODES") != this->CapKeys.end()) && (this->CapKeys.find("MAXMODES")->second != ConvToStr(MAXMODES)))))
985 reason = "Maximum modes per line differ or remote modes per line not specified";
987 if (((this->CapKeys.find("MAXQUIT") == this->CapKeys.end()) || ((this->CapKeys.find("MAXQUIT") != this->CapKeys.end()) && (this->CapKeys.find("MAXQUIT")->second != ConvToStr(MAXQUIT)))))
988 reason = "Maximum quit lengths differ or remote quit length not specified";
990 if (((this->CapKeys.find("MAXTOPIC") == this->CapKeys.end()) || ((this->CapKeys.find("MAXTOPIC") != this->CapKeys.end()) && (this->CapKeys.find("MAXTOPIC")->second != ConvToStr(MAXTOPIC)))))
991 reason = "Maximum topic lengths differ or remote topic length not specified";
993 if (((this->CapKeys.find("MAXKICK") == this->CapKeys.end()) || ((this->CapKeys.find("MAXKICK") != this->CapKeys.end()) && (this->CapKeys.find("MAXKICK")->second != ConvToStr(MAXKICK)))))
994 reason = "Maximum kick lengths differ or remote kick length not specified";
996 if (((this->CapKeys.find("MAXGECOS") == this->CapKeys.end()) || ((this->CapKeys.find("MAXGECOS") != this->CapKeys.end()) && (this->CapKeys.find("MAXGECOS")->second != ConvToStr(MAXGECOS)))))
997 reason = "Maximum GECOS (fullname) lengths differ or remote GECOS length not specified";
999 if (((this->CapKeys.find("MAXAWAY") == this->CapKeys.end()) || ((this->CapKeys.find("MAXAWAY") != this->CapKeys.end()) && (this->CapKeys.find("MAXAWAY")->second != ConvToStr(MAXAWAY)))))
1000 reason = "Maximum awaymessage lengths differ or remote awaymessage length not specified";
1002 if (reason.length())
1004 this->WriteLine("ERROR :CAPAB negotiation failed: "+reason);
1008 else if ((params[0] == "MODULES") && (params.size() == 2))
1010 if (!this->ModuleList.length())
1012 this->ModuleList.append(params[1]);
1016 this->ModuleList.append(",");
1017 this->ModuleList.append(params[1]);
1020 else if ((params[0] == "CAPABILITIES") && (params.size() == 2))
1022 irc::tokenstream capabs(params[1]);
1023 std::string item = "*";
1024 while ((item = capabs.GetToken()) != "")
1026 /* Process each key/value pair */
1027 std::string::size_type equals = item.rfind('=');
1028 if (equals != std::string::npos)
1030 std::string var = item.substr(0, equals);
1031 std::string value = item.substr(equals+1, item.length());
1032 this->Instance->Log(DEBUG,"Key='%s' Value='%s'",var.c_str(),value.c_str());
1033 CapKeys[var] = value;
1041 /** This function forces this server to quit, removing this server
1042 * and any users on it (and servers and users below that, etc etc).
1043 * It's very slow and pretty clunky, but luckily unless your network
1044 * is having a REAL bad hair day, this function shouldnt be called
1045 * too many times a month ;-)
1047 void SquitServer(std::string &from, TreeServer* Current)
1049 /* recursively squit the servers attached to 'Current'.
1050 * We're going backwards so we don't remove users
1051 * while we still need them ;)
1053 for (unsigned int q = 0; q < Current->ChildCount(); q++)
1055 TreeServer* recursive_server = Current->GetChild(q);
1056 this->SquitServer(from,recursive_server);
1058 /* Now we've whacked the kids, whack self */
1060 num_lost_users += Current->QuitUsers(from);
1063 /** This is a wrapper function for SquitServer above, which
1064 * does some validation first and passes on the SQUIT to all
1065 * other remaining servers.
1067 void Squit(TreeServer* Current, const std::string &reason)
1069 if ((Current) && (Current != Utils->TreeRoot))
1071 Event rmode((char*)Current->GetName().c_str(), (Module*)Utils->Creator, "lost_server");
1072 rmode.Send(Instance);
1074 std::deque<std::string> params;
1075 params.push_back(Current->GetName());
1076 params.push_back(":"+reason);
1077 Utils->DoOneToAllButSender(Current->GetParent()->GetName(),"SQUIT",params,Current->GetName());
1078 if (Current->GetParent() == Utils->TreeRoot)
1080 this->Instance->WriteOpers("Server \002"+Current->GetName()+"\002 split: "+reason);
1084 this->Instance->WriteOpers("Server \002"+Current->GetName()+"\002 split from server \002"+Current->GetParent()->GetName()+"\002 with reason: "+reason);
1086 num_lost_servers = 0;
1088 std::string from = Current->GetParent()->GetName()+" "+Current->GetName();
1089 SquitServer(from, Current);
1091 Current->GetParent()->DelChild(Current);
1093 this->Instance->WriteOpers("Netsplit complete, lost \002%d\002 users on \002%d\002 servers.", num_lost_users, num_lost_servers);
1097 Instance->Log(DEFAULT,"Squit from unknown server");
1101 /** FMODE command - server mode with timestamp checks */
1102 bool ForceMode(const std::string &source, std::deque<std::string> ¶ms)
1104 /* Chances are this is a 1.0 FMODE without TS */
1105 if (params.size() < 3)
1107 /* No modes were in the command, probably a channel with no modes set on it */
1112 std::string sourceserv;
1114 /* Are we dealing with an FMODE from a user, or from a server? */
1115 userrec* who = this->Instance->FindNick(source);
1118 /* FMODE from a user, set sourceserv to the users server name */
1119 sourceserv = who->server;
1123 /* FMODE from a server, create a fake user to receive mode feedback */
1124 who = new userrec(this->Instance);
1125 who->SetFd(FD_MAGIC_NUMBER);
1126 smode = true; /* Setting this flag tells us we should free the userrec later */
1127 sourceserv = source; /* Set sourceserv to the actual source string */
1129 const char* modelist[64];
1132 memset(&modelist,0,sizeof(modelist));
1133 for (unsigned int q = 0; (q < params.size()) && (q < 64); q++)
1137 /* The timestamp is in this position.
1138 * We don't want to pass that up to the
1139 * server->client protocol!
1141 TS = atoi(params[q].c_str());
1145 /* Everything else is fine to append to the modelist */
1146 modelist[n++] = params[q].c_str();
1150 /* Extract the TS value of the object, either userrec or chanrec */
1151 userrec* dst = this->Instance->FindNick(params[0]);
1152 chanrec* chan = NULL;
1160 chan = this->Instance->FindChan(params[0]);
1166 /* Oops, channel doesnt exist! */
1170 /* TS is equal: Merge the mode changes, use voooodoooooo on modes
1175 Instance->Log(DEBUG,"Entering TS equality check");
1176 ModeHandler* mh = NULL;
1177 unsigned long paramptr = 3;
1178 std::string to_bounce = "";
1179 std::string to_keep = "";
1180 std::vector<std::string> params_to_keep;
1181 std::string params_to_bounce = "";
1183 char cur_change = 1;
1184 char old_change = 0;
1185 char old_bounce_change = 0;
1186 /* Merge modes, basically do special stuff to mode with params */
1187 for (std::string::iterator x = params[2].begin(); x != params[2].end(); x++)
1200 /* We only care about whats being set,
1201 * not whats being unset
1203 mh = this->Instance->Modes->FindMode(*x, chan ? MODETYPE_CHANNEL : MODETYPE_USER);
1205 if ((mh) && (mh->GetNumParams(adding) > 0) && (!mh->IsListMode()))
1207 /* We only want to do special things to
1208 * modes with parameters, we are going to rewrite
1212 adding ? cur_change = '+' : cur_change = '-';
1214 ret = mh->ModeSet(smode ? NULL : who, dst, chan, params[paramptr]);
1216 /* The mode is set here, check which we should keep */
1219 bool which_to_keep = mh->CheckTimeStamp(TS, ourTS, params[paramptr], ret.second, chan);
1221 if (which_to_keep == true)
1223 /* Keep ours, bounce theirs:
1224 * Send back ours to them and
1225 * drop their mode changs
1227 adding ? cur_change = '+' : cur_change = '-';
1228 if (cur_change != old_bounce_change)
1229 to_bounce += cur_change;
1231 old_bounce_change = cur_change;
1233 if ((mh->GetNumParams(adding) > 0) && (paramptr < params.size()))
1234 params_to_bounce.append(" ").append(ret.second);
1238 /* Keep theirs: Accept their mode change,
1241 adding ? cur_change = '+' : cur_change = '-';
1242 if (cur_change != old_change)
1243 to_keep += cur_change;
1245 old_change = cur_change;
1247 if ((mh->GetNumParams(adding) > 0) && (paramptr < params.size()))
1248 params_to_keep.push_back(params[paramptr]);
1253 /* Mode isnt set here, we want it */
1254 adding ? cur_change = '+' : cur_change = '-';
1255 if (cur_change != old_change)
1256 to_keep += cur_change;
1258 old_change = cur_change;
1260 if ((mh->GetNumParams(adding) > 0) && (paramptr < params.size()))
1261 params_to_keep.push_back(params[paramptr]);
1268 mh = this->Instance->Modes->FindMode(*x, chan ? MODETYPE_CHANNEL : MODETYPE_USER);
1272 adding ? cur_change = '+' : cur_change = '-';
1274 /* Just keep this, safe to merge with no checks
1275 * it has no parameters
1278 if (cur_change != old_change)
1279 to_keep += cur_change;
1281 old_change = cur_change;
1283 if ((mh->GetNumParams(adding) > 0) && (paramptr < params.size()))
1285 Instance->Log(DEBUG,"Mode removal %d %d",adding, mh->GetNumParams(adding));
1286 params_to_keep.push_back(params[paramptr++]);
1293 mh = this->Instance->Modes->FindMode(*x, chan ? MODETYPE_CHANNEL : MODETYPE_USER);
1297 /* Taking a mode away */
1298 adding ? cur_change = '+' : cur_change = '-';
1300 if (cur_change != old_change)
1301 to_keep += cur_change;
1303 old_change = cur_change;
1305 if ((mh->GetNumParams(adding) > 0) && (paramptr < params.size()))
1306 params_to_keep.push_back(params[paramptr++]);
1313 if (to_bounce.length())
1315 std::deque<std::string> newparams;
1316 newparams.push_back(params[0]);
1317 newparams.push_back(ConvToStr(ourTS));
1318 newparams.push_back(to_bounce+params_to_bounce);
1319 Instance->Log(DEBUG,"BOUNCE BACK: %s",(to_bounce+params_to_bounce).c_str());
1320 Utils->DoOneToOne(this->Instance->Config->ServerName,"FMODE",newparams,sourceserv);
1323 if (to_keep.length())
1327 modelist[0] = params[0].c_str();
1328 modelist[1] = to_keep.c_str();
1330 if (params_to_keep.size() > 0)
1332 for (q = 0; (q < params_to_keep.size()) && (q < 64); q++)
1334 Instance->Log(DEBUG,"KEEP Item %d of %d: %s", q, params_to_keep.size(), params_to_keep[q].c_str());
1335 modelist[n++] = params_to_keep[q].c_str();
1341 Instance->Log(DEBUG,"Send mode");
1342 this->Instance->SendMode(modelist, n, who);
1346 Instance->Log(DEBUG,"Send mode client");
1347 this->Instance->CallCommandHandler("MODE", modelist, n, who);
1350 /* HOT POTATO! PASS IT ON! */
1351 Utils->DoOneToAllButSender(source,"FMODE",params,sourceserv);
1355 /* U-lined servers always win regardless of their TS */
1356 if ((TS > ourTS) && (!this->Instance->ULine(source.c_str())))
1358 /* Bounce the mode back to its sender.* We use our lower TS, so the other end
1359 * SHOULD accept it, if its clock is right.
1361 * NOTE: We should check that we arent bouncing anything thats already set at this end.
1362 * If we are, bounce +ourmode to 'reinforce' it. This prevents desyncs.
1363 * e.g. They send +l 50, we have +l 10 set. rather than bounce -l 50, we bounce +l 10.
1365 * Thanks to jilles for pointing out this one-hell-of-an-issue before i even finished
1366 * writing the code. It took me a while to come up with this solution.
1368 * XXX: BE SURE YOU UNDERSTAND THIS CODE FULLY BEFORE YOU MESS WITH IT.
1371 std::deque<std::string> newparams; /* New parameter list we send back */
1372 newparams.push_back(params[0]); /* Target, user or channel */
1373 newparams.push_back(ConvToStr(ourTS)); /* Timestamp value of the target */
1374 newparams.push_back(""); /* This contains the mode string. For now
1375 * it's empty, we fill it below.
1378 /* Intelligent mode bouncing. Don't just invert, reinforce any modes which are already
1379 * set to avoid a desync here.
1381 std::string modebounce = "";
1384 ModeHandler* mh = NULL;
1385 char cur_change = 1;
1386 char old_change = 0;
1387 for (std::string::iterator x = params[2].begin(); x != params[2].end(); x++)
1389 /* Iterate over all mode chars in the sent set */
1392 /* Adding or subtracting modes? */
1400 /* Find the mode handler for this mode */
1401 mh = this->Instance->Modes->FindMode(*x, chan ? MODETYPE_CHANNEL : MODETYPE_USER);
1403 /* Got a mode handler?
1404 * This also prevents us bouncing modes we have no handler for.
1411 /* Does the mode require a parameter right now?
1412 * If it does, fetch it if we can
1414 if ((mh->GetNumParams(adding) > 0) && (t < params.size()))
1417 /* Call the ModeSet method to determine if its set with the
1418 * given parameter here or not.
1420 ret = mh->ModeSet(smode ? NULL : who, dst, chan, p);
1422 /* XXX: Really. Dont ask.
1423 * Determine from if its set combined with what the current
1424 * 'state' is (adding or not) as to wether we should 'invert'
1425 * or 'reinforce' the mode change
1427 (!ret.first ? (adding ? cur_change = '-' : cur_change = '+') : (!adding ? cur_change = '-' : cur_change = '+'));
1429 /* Quickly determine if we have 'flipped' from + to -,
1430 * or - to +, to prevent unneccessary +/- chars in the
1431 * output string that waste bandwidth
1433 if (cur_change != old_change)
1434 modebounce += cur_change;
1435 old_change = cur_change;
1437 /* Add the mode character to the output string */
1438 modebounce += mh->GetModeChar();
1440 /* We got a parameter back from ModeHandler::ModeSet,
1441 * are we supposed to be sending one out right now?
1443 if (ret.second.length())
1445 if (mh->GetNumParams(cur_change == '+') > 0)
1446 /* Yes we're supposed to be sending out
1447 * the parameter. Make sure it goes
1449 newparams.push_back(ret.second);
1457 /* Update the parameters for FMODE with the new 'bounced' string */
1458 newparams[2] = modebounce;
1459 /* Only send it back the way it came, no need to send it anywhere else */
1460 Utils->DoOneToOne(this->Instance->Config->ServerName,"FMODE",newparams,sourceserv);
1461 Instance->Log(DEBUG,"FMODE bounced intelligently, our TS less than theirs and the other server is NOT a uline.");
1465 Instance->Log(DEBUG,"Allow modes, TS lower for sender");
1466 /* The server was ulined, but something iffy is up with the TS.
1467 * Sound the alarm bells!
1469 if ((this->Instance->ULine(sourceserv.c_str())) && (TS > ourTS))
1471 this->Instance->WriteOpers("\2WARNING!\2 U-Lined server '%s' has bad TS for '%s' (accepted change): \2SYNC YOUR CLOCKS\2 to avoid this notice",sourceserv.c_str(),params[0].c_str());
1473 /* Allow the mode, route it to either server or user command handling */
1475 this->Instance->SendMode(modelist,n,who);
1477 this->Instance->CallCommandHandler("MODE", modelist, n, who);
1479 /* HOT POTATO! PASS IT ON! */
1480 Utils->DoOneToAllButSender(source,"FMODE",params,sourceserv);
1482 /* Are we supposed to free the userrec? */
1489 /** FTOPIC command */
1490 bool ForceTopic(const std::string &source, std::deque<std::string> ¶ms)
1492 if (params.size() != 4)
1494 time_t ts = atoi(params[1].c_str());
1495 std::string nsource = source;
1497 chanrec* c = this->Instance->FindChan(params[0]);
1500 if ((ts >= c->topicset) || (!*c->topic))
1502 std::string oldtopic = c->topic;
1503 strlcpy(c->topic,params[3].c_str(),MAXTOPIC);
1504 strlcpy(c->setby,params[2].c_str(),NICKMAX-1);
1506 /* if the topic text is the same as the current topic,
1507 * dont bother to send the TOPIC command out, just silently
1508 * update the set time and set nick.
1510 if (oldtopic != params[3])
1512 userrec* user = this->Instance->FindNick(source);
1515 c->WriteChannelWithServ(source.c_str(), "TOPIC %s :%s", c->name, c->topic);
1519 c->WriteChannel(user, "TOPIC %s :%s", c->name, c->topic);
1520 nsource = user->server;
1522 /* all done, send it on its way */
1523 params[3] = ":" + params[3];
1524 Utils->DoOneToAllButSender(source,"FTOPIC",params,nsource);
1533 /** FJOIN, similar to TS6 SJOIN, but not quite. */
1534 bool ForceJoin(const std::string &source, std::deque<std::string> ¶ms)
1536 /* 1.1 FJOIN works as follows:
1538 * Each FJOIN is sent along with a timestamp, and the side with the lowest
1539 * timestamp 'wins'. From this point on we will refer to this side as the
1540 * winner. The side with the higher timestamp loses, from this point on we
1541 * will call this side the loser or losing side. This should be familiar to
1542 * anyone who's dealt with dreamforge or TS6 before.
1544 * When two sides of a split heal and this occurs, the following things
1547 * If the timestamps are exactly equal, both sides merge their privilages
1548 * and users, as in InspIRCd 1.0 and ircd2.8. The channels have not been
1549 * re-created during a split, this is safe to do.
1552 * If the timestamps are NOT equal, the losing side removes all privilage
1553 * modes from all of its users that currently exist in the channel, before
1554 * introducing new users into the channel which are listed in the FJOIN
1555 * command's parameters. This means, all modes +ohv, and privilages added
1556 * by modules, such as +qa. The losing side then LOWERS its timestamp value
1557 * of the channel to match that of the winning side, and the modes of the
1558 * users of the winning side are merged in with the losing side. The loser
1559 * then sends out a set of FMODE commands which 'confirm' that it just
1560 * removed all privilage modes from its existing users, which allows for
1561 * services packages to still work correctly without needing to know the
1562 * timestamping rules which InspIRCd follows. In TS6 servers this is always
1563 * a problem, and services packages must contain code which explicitly
1564 * behaves as TS6 does, removing ops from the losing side of a split where
1565 * neccessary within its internal records, as this state information is
1566 * not explicitly echoed out in that protocol.
1568 * The winning side on the other hand will ignore all user modes from the
1569 * losing side, so only its own modes get applied. Life is simple for those
1570 * who succeed at internets. :-)
1572 * NOTE: Unlike TS6 and dreamforge and other protocols which have SJOIN,
1573 * FJOIN does not contain the simple-modes such as +iklmnsp. Why not,
1574 * you ask? Well, quite simply because we don't need to. They'll be sent
1575 * after the FJOIN by FMODE, and FMODE is timestamped, so in the event
1576 * the losing side sends any modes for the channel which shouldnt win,
1577 * they wont as their timestamp will be too high :-)
1580 if (params.size() < 3)
1583 char first[MAXBUF]; /* The first parameter of the mode command */
1584 char modestring[MAXBUF]; /* The mode sequence (2nd parameter) of the mode command */
1585 char* mode_users[127]; /* The values used by the mode command */
1586 memset(&mode_users,0,sizeof(mode_users)); /* Initialize mode parameters */
1587 mode_users[0] = first; /* Set this up to be our on-stack value */
1588 mode_users[1] = modestring; /* Same here as above */
1589 strcpy(modestring,"+"); /* Initialize the mode sequence to just '+' */
1590 unsigned int modectr = 2; /* Pointer to the third mode parameter (e.g. the one after the +-sequence) */
1592 userrec* who = NULL; /* User we are currently checking */
1593 std::string channel = params[0]; /* Channel name, as a string */
1594 time_t TS = atoi(params[1].c_str()); /* Timestamp given to us for remote side */
1595 bool created = false;
1597 /* Try and find the channel */
1598 chanrec* chan = this->Instance->FindChan(channel);
1600 /* Initialize channel name in the mode parameters */
1601 strlcpy(mode_users[0],channel.c_str(),MAXBUF);
1603 /* default TS is a high value, which if we dont have this
1604 * channel will let the other side apply their modes.
1606 time_t ourTS = Instance->Time(true)+600;
1608 /* Does this channel exist? if it does, get its REAL timestamp */
1612 created = true; /* don't perform deops, and set TS to correct time after processing. */
1614 /* In 1.1, if they have the newer channel, we immediately clear
1615 * all status modes from our users. We then accept their modes.
1616 * If WE have the newer channel its the other side's job to do this.
1617 * Note that this causes the losing server to send out confirming
1622 std::deque<std::string> param_list;
1624 /* Lower the TS here */
1625 if (Utils->AnnounceTSChange && chan)
1626 chan->WriteChannelWithServ(Instance->Config->ServerName,
1627 "NOTICE %s :TS for %s changed from %lu to %lu", chan->name, chan->name, ourTS, TS);
1629 param_list.push_back(channel);
1631 /* Zap all the privilage modes on our side, if the channel exists here */
1634 this->RemoveStatus(Instance->Config->ServerName, param_list);
1639 /* Put the final parameter of the FJOIN into a tokenstream ready to split it */
1640 irc::tokenstream users(params[2]);
1641 std::string item = "*";
1643 /* do this first, so our mode reversals are correctly received by other servers
1644 * if there is a TS collision.
1646 params[2] = ":" + params[2];
1647 Utils->DoOneToAllButSender(source,"FJOIN",params,source);
1649 /* Now, process every 'prefixes,nick' pair */
1652 /* Find next user */
1653 item = users.GetToken();
1655 const char* usr = item.c_str();
1657 /* Safety check just to make sure someones not sent us an FJOIN full of spaces
1658 * (is this even possible?) */
1661 const char* permissions = usr;
1663 char* nm = new char[MAXBUF];
1666 /* Iterate through all the prefix values, convert them from prefixes
1667 * to mode letters, and append them to the mode sequence
1669 while ((*permissions) && (*permissions != ',') && (ntimes < MAXBUF))
1671 ModeHandler* mh = Instance->Modes->FindPrefix(*permissions);
1674 /* This is a valid prefix */
1676 *tnm++ = mh->GetModeChar();
1680 /* Not a valid prefix...
1681 * danger bill bobbertson! (that's will robinsons older brother ;-) ...)
1683 this->Instance->WriteOpers("ERROR: We received a user with an unknown prefix '%c'. Closed connection to avoid a desync.",*permissions);
1684 this->WriteLine(std::string("ERROR :Invalid prefix '")+(*permissions)+"' in FJOIN");
1691 /* Null terminate modes */
1693 /* Advance past the comma, to the nick */
1696 /* Check the user actually exists */
1697 who = this->Instance->FindNick(usr);
1700 /* Did they get any modes? How many times? */
1701 strlcat(modestring, nm, MAXBUF);
1702 for (int k = 0; k < ntimes; k++)
1703 mode_users[modectr++] = strdup(usr);
1705 /* Free temporary buffer used for mode sequence */
1708 /* Check that the user's 'direction' is correct
1709 * based on the server sending the FJOIN. We must
1710 * check each nickname in turn, because the origin of
1711 * the FJOIN may be different to the origin of the nicks
1712 * in the command itself.
1714 TreeServer* route_back_again = Utils->BestRouteTo(who->server);
1715 if ((!route_back_again) || (route_back_again->GetSocket() != this))
1717 /* Oh dear oh dear. */
1718 Instance->Log(DEBUG,"Fake direction in FJOIN, user '%s'",who->nick);
1721 /* Finally, we can actually place the user into the channel.
1722 * We're sure its right. Final answer, phone a friend.
1724 chanrec::JoinUser(this->Instance, who, channel.c_str(), true, "");
1726 /* Have we already queued up MAXMODES modes with parameters
1727 * (+qaohv) ready to be sent to the server?
1729 if (modectr >= (MAXMODES-1))
1731 /* Only actually give the users any status if we lost
1732 * the FJOIN or drew (equal timestamps).
1733 * It isn't actually possible for ourTS to be > TS here,
1734 * only possible to actually have ourTS == TS, or
1735 * ourTS < TS, because if we lost, we already lowered
1736 * our TS above before we entered this loop. We only
1737 * check >= as a safety measure, in case someone stuffed
1738 * up. If someone DID stuff up, it was most likely me.
1739 * Note: I do not like baseball bats in the face...
1743 Instance->Log(DEBUG,"Our our channel newer than theirs, accepting their modes");
1744 this->Instance->SendMode((const char**)mode_users,modectr,who);
1746 /* Something stuffed up, and for some reason, the timestamp is
1747 * NOT lowered right now and should be. Lower it. Usually this
1748 * code won't be executed, doubtless someone will remove it some
1753 Instance->Log(DEFAULT,"Channel TS for %s changed from %lu to %lu",chan->name,ourTS,TS);
1759 /* Reset all this back to defaults, and
1760 * free any ram we have left allocated.
1762 strcpy(mode_users[1],"+");
1763 for (unsigned int f = 2; f < modectr; f++)
1764 free(mode_users[f]);
1770 /* Remember to free this */
1772 /* If we got here, there's a nick in FJOIN which doesnt exist on this server.
1773 * We don't try to process the nickname here (that WOULD cause a segfault because
1774 * we'd be playing with null pointers) however, we DO pass the nickname on, just
1775 * in case somehow we're desynched, so that other users which might be able to see
1776 * the nickname get their fair chance to process it.
1778 Instance->Log(SPARSE,"Warning! Invalid user in FJOIN to channel %s IGNORED", channel.c_str());
1784 /* there werent enough modes built up to flush it during FJOIN,
1785 * or, there are a number left over. flush them out.
1787 if ((modectr > 2) && (who) && (chan))
1791 /* Our channel is newer than theirs. Evil deeds must be afoot. */
1792 this->Instance->SendMode((const char**)mode_users,modectr,who);
1793 /* Yet again, we can't actually get a true value here, if everything else
1794 * is working as it should.
1798 Instance->Log(DEFAULT,"Channel TS for %s changed from %lu to %lu",chan->name,ourTS,TS);
1804 /* Free anything we have left to free */
1805 for (unsigned int f = 2; f < modectr; f++)
1806 free(mode_users[f]);
1809 /* if we newly created the channel, set it's TS properly. */
1812 /* find created channel .. */
1813 chan = this->Instance->FindChan(channel);
1815 /* w00t said this shouldnt be needed but it is.
1816 * This isnt strictly true, as chan can be NULL
1817 * if a nick collision has occured and therefore
1818 * the channel was never created.
1823 /* All done. That wasnt so bad was it, you can wipe
1824 * the sweat from your forehead now. :-)
1830 bool IntroduceClient(const std::string &source, std::deque<std::string> ¶ms)
1832 if (params.size() < 8)
1834 if (params.size() > 8)
1836 this->WriteLine(std::string(":")+this->Instance->Config->ServerName+" KILL "+params[1]+" :Invalid client introduction ("+params[1]+"?)");
1839 // NICK age nick host dhost ident +modes ip :gecos
1841 time_t age = atoi(params[0].c_str());
1843 /* This used to have a pretty craq'y loop doing the same thing,
1844 * now we just let the STL do the hard work (more efficiently)
1846 std::string::size_type pos_after_plus = params[5].find_first_not_of('+');
1847 if (pos_after_plus != std::string::npos)
1848 params[5] = params[5].substr(pos_after_plus);
1850 const char* tempnick = params[1].c_str();
1851 Instance->Log(DEBUG,"Introduce client %s!%s@%s",tempnick,params[4].c_str(),params[2].c_str());
1853 user_hash::iterator iter = this->Instance->clientlist.find(tempnick);
1855 if (iter != this->Instance->clientlist.end())
1858 Instance->Log(DEBUG,"Nick collision on %s!%s@%s: %lu %lu",tempnick,params[4].c_str(),params[2].c_str(),(unsigned long)age,(unsigned long)iter->second->age);
1859 this->WriteLine(std::string(":")+this->Instance->Config->ServerName+" KILL "+tempnick+" :Nickname collision");
1860 userrec::QuitUser(this->Instance, iter->second, "Nickname collision");
1864 userrec* _new = new userrec(this->Instance);
1865 this->Instance->clientlist[tempnick] = _new;
1866 _new->SetFd(FD_MAGIC_NUMBER);
1867 strlcpy(_new->nick, tempnick,NICKMAX-1);
1868 strlcpy(_new->host, params[2].c_str(),63);
1869 strlcpy(_new->dhost, params[3].c_str(),63);
1870 _new->server = this->Instance->FindServerNamePtr(source.c_str());
1871 strlcpy(_new->ident, params[4].c_str(),IDENTMAX);
1872 strlcpy(_new->fullname, params[7].c_str(),MAXGECOS);
1873 _new->registered = REG_ALL;
1876 for (std::string::iterator v = params[5].begin(); v != params[5].end(); v++)
1877 _new->modes[(*v)-65] = 1;
1879 #ifdef SUPPORT_IP6LINKS
1880 if (params[6].find_first_of(":") != std::string::npos)
1881 _new->SetSockAddr(AF_INET6, params[6].c_str(), 0);
1884 _new->SetSockAddr(AF_INET, params[6].c_str(), 0);
1886 this->Instance->SNO->WriteToSnoMask('C',"Client connecting at %s: %s!%s@%s [%s]",_new->server,_new->nick,_new->ident,_new->host, _new->GetIPString());
1888 params[7] = ":" + params[7];
1889 Utils->DoOneToAllButSender(source,"NICK",params,source);
1891 // Increment the Source Servers User Count..
1892 TreeServer* SourceServer = Utils->FindServer(source);
1895 Instance->Log(DEBUG,"Found source server of %s",_new->nick);
1896 SourceServer->AddUserCount();
1899 FOREACH_MOD_I(Instance,I_OnPostConnect,OnPostConnect(_new));
1904 /** Send one or more FJOINs for a channel of users.
1905 * If the length of a single line is more than 480-NICKMAX
1906 * in length, it is split over multiple lines.
1908 void SendFJoins(TreeServer* Current, chanrec* c)
1912 Instance->Log(DEBUG,"Sending FJOINs to other server for %s",c->name);
1914 std::string individual_halfops = std::string(":")+this->Instance->Config->ServerName+" FMODE "+c->name+" "+ConvToStr(c->age);
1916 size_t dlen, curlen;
1917 dlen = curlen = snprintf(list,MAXBUF,":%s FJOIN %s %lu",this->Instance->Config->ServerName,c->name,(unsigned long)c->age);
1919 char* ptr = list + dlen;
1921 CUList *ulist = c->GetUsers();
1922 std::string modes = "";
1923 std::string params = "";
1925 for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
1927 // The first parameter gets a : before it
1928 size_t ptrlen = snprintf(ptr, MAXBUF, " %s%s,%s", !numusers ? ":" : "", c->GetAllPrefixChars(i->second), i->second->nick);
1935 if (curlen > (480-NICKMAX))
1937 buffer.append(list).append("\r\n");
1939 dlen = curlen = snprintf(list,MAXBUF,":%s FJOIN %s %lu",this->Instance->Config->ServerName,c->name,(unsigned long)c->age);
1947 buffer.append(list).append("\r\n");
1949 /* Sorry for the hax. Because newly created channels assume +nt,
1950 * if this channel doesnt have +nt, explicitly send -n and -t for the missing modes.
1952 bool inverted = false;
1953 if (!c->IsModeSet('n'))
1958 if (!c->IsModeSet('t'))
1968 for (BanList::iterator b = c->bans.begin(); b != c->bans.end(); b++)
1971 params.append(" ").append(b->data);
1973 if (params.length() >= MAXMODES)
1975 /* Wrap at MAXMODES */
1976 buffer.append(":").append(this->Instance->Config->ServerName).append(" FMODE ").append(c->name).append(" ").append(ConvToStr(c->age)).append(" +").append(modes).append(params).append("\r\n");
1982 buffer.append(":").append(this->Instance->Config->ServerName).append(" FMODE ").append(c->name).append(" ").append(ConvToStr(c->age)).append(" +").append(c->ChanModes(true));
1984 /* Only send these if there are any */
1986 buffer.append("\r\n").append(":").append(this->Instance->Config->ServerName).append(" FMODE ").append(c->name).append(" ").append(ConvToStr(c->age)).append(" +").append(modes).append(params);
1988 this->WriteLine(buffer);
1991 /** Send G, Q, Z and E lines */
1992 void SendXLines(TreeServer* Current)
1996 std::string n = this->Instance->Config->ServerName;
1997 const char* sn = n.c_str();
1999 /* Yes, these arent too nice looking, but they get the job done */
2000 for (std::vector<ZLine*>::iterator i = Instance->XLines->zlines.begin(); i != Instance->XLines->zlines.end(); i++, iterations++)
2002 snprintf(data,MAXBUF,":%s ADDLINE Z %s %s %lu %lu :%s\r\n",sn,(*i)->ipaddr,(*i)->source,(unsigned long)(*i)->set_time,(unsigned long)(*i)->duration,(*i)->reason);
2003 buffer.append(data);
2005 for (std::vector<QLine*>::iterator i = Instance->XLines->qlines.begin(); i != Instance->XLines->qlines.end(); i++, iterations++)
2007 snprintf(data,MAXBUF,":%s ADDLINE Q %s %s %lu %lu :%s\r\n",sn,(*i)->nick,(*i)->source,(unsigned long)(*i)->set_time,(unsigned long)(*i)->duration,(*i)->reason);
2008 buffer.append(data);
2010 for (std::vector<GLine*>::iterator i = Instance->XLines->glines.begin(); i != Instance->XLines->glines.end(); i++, iterations++)
2012 snprintf(data,MAXBUF,":%s ADDLINE G %s@%s %s %lu %lu :%s\r\n",sn,(*i)->identmask,(*i)->hostmask,(*i)->source,(unsigned long)(*i)->set_time,(unsigned long)(*i)->duration,(*i)->reason);
2013 buffer.append(data);
2015 for (std::vector<ELine*>::iterator i = Instance->XLines->elines.begin(); i != Instance->XLines->elines.end(); i++, iterations++)
2017 snprintf(data,MAXBUF,":%s ADDLINE E %s@%s %s %lu %lu :%s\r\n",sn,(*i)->identmask,(*i)->hostmask,(*i)->source,(unsigned long)(*i)->set_time,(unsigned long)(*i)->duration,(*i)->reason);
2018 buffer.append(data);
2020 for (std::vector<ZLine*>::iterator i = Instance->XLines->pzlines.begin(); i != Instance->XLines->pzlines.end(); i++, iterations++)
2022 snprintf(data,MAXBUF,":%s ADDLINE Z %s %s %lu %lu :%s\r\n",sn,(*i)->ipaddr,(*i)->source,(unsigned long)(*i)->set_time,(unsigned long)(*i)->duration,(*i)->reason);
2023 buffer.append(data);
2025 for (std::vector<QLine*>::iterator i = Instance->XLines->pqlines.begin(); i != Instance->XLines->pqlines.end(); i++, iterations++)
2027 snprintf(data,MAXBUF,":%s ADDLINE Q %s %s %lu %lu :%s\r\n",sn,(*i)->nick,(*i)->source,(unsigned long)(*i)->set_time,(unsigned long)(*i)->duration,(*i)->reason);
2028 buffer.append(data);
2030 for (std::vector<GLine*>::iterator i = Instance->XLines->pglines.begin(); i != Instance->XLines->pglines.end(); i++, iterations++)
2032 snprintf(data,MAXBUF,":%s ADDLINE G %s@%s %s %lu %lu :%s\r\n",sn,(*i)->identmask,(*i)->hostmask,(*i)->source,(unsigned long)(*i)->set_time,(unsigned long)(*i)->duration,(*i)->reason);
2033 buffer.append(data);
2035 for (std::vector<ELine*>::iterator i = Instance->XLines->pelines.begin(); i != Instance->XLines->pelines.end(); i++, iterations++)
2037 snprintf(data,MAXBUF,":%s ADDLINE E %s@%s %s %lu %lu :%s\r\n",sn,(*i)->identmask,(*i)->hostmask,(*i)->source,(unsigned long)(*i)->set_time,(unsigned long)(*i)->duration,(*i)->reason);
2038 buffer.append(data);
2041 if (!buffer.empty())
2042 this->WriteLine(buffer);
2045 /** Send channel modes and topics */
2046 void SendChannelModes(TreeServer* Current)
2049 std::deque<std::string> list;
2051 std::string n = this->Instance->Config->ServerName;
2052 const char* sn = n.c_str();
2053 for (chan_hash::iterator c = this->Instance->chanlist.begin(); c != this->Instance->chanlist.end(); c++, iterations++)
2055 SendFJoins(Current, c->second);
2056 if (*c->second->topic)
2058 snprintf(data,MAXBUF,":%s FTOPIC %s %lu %s :%s",sn,c->second->name,(unsigned long)c->second->topicset,c->second->setby,c->second->topic);
2059 this->WriteLine(data);
2061 FOREACH_MOD_I(this->Instance,I_OnSyncChannel,OnSyncChannel(c->second,(Module*)Utils->Creator,(void*)this));
2063 c->second->GetExtList(list);
2064 for (unsigned int j = 0; j < list.size(); j++)
2066 FOREACH_MOD_I(this->Instance,I_OnSyncChannelMetaData,OnSyncChannelMetaData(c->second,(Module*)Utils->Creator,(void*)this,list[j]));
2071 /** send all users and their oper state/modes */
2072 void SendUsers(TreeServer* Current)
2075 std::deque<std::string> list;
2076 std::string dataline;
2078 for (user_hash::iterator u = this->Instance->clientlist.begin(); u != this->Instance->clientlist.end(); u++, iterations++)
2080 if (u->second->registered == REG_ALL)
2082 snprintf(data,MAXBUF,":%s NICK %lu %s %s %s %s +%s %s :%s",u->second->server,(unsigned long)u->second->age,u->second->nick,u->second->host,u->second->dhost,u->second->ident,u->second->FormatModes(),u->second->GetIPString(),u->second->fullname);
2083 this->WriteLine(data);
2084 if (*u->second->oper)
2086 snprintf(data,MAXBUF,":%s OPERTYPE %s", u->second->nick, u->second->oper);
2087 this->WriteLine(data);
2089 if (*u->second->awaymsg)
2091 snprintf(data,MAXBUF,":%s AWAY :%s", u->second->nick, u->second->awaymsg);
2092 this->WriteLine(data);
2094 FOREACH_MOD_I(this->Instance,I_OnSyncUser,OnSyncUser(u->second,(Module*)Utils->Creator,(void*)this));
2096 u->second->GetExtList(list);
2097 for (unsigned int j = 0; j < list.size(); j++)
2099 FOREACH_MOD_I(this->Instance,I_OnSyncUserMetaData,OnSyncUserMetaData(u->second,(Module*)Utils->Creator,(void*)this,list[j]));
2105 /** This function is called when we want to send a netburst to a local
2106 * server. There is a set order we must do this, because for example
2107 * users require their servers to exist, and channels require their
2108 * users to exist. You get the idea.
2110 void DoBurst(TreeServer* s)
2112 std::string burst = "BURST "+ConvToStr(Instance->Time(true));
2113 std::string endburst = "ENDBURST";
2114 // Because by the end of the netburst, it could be gone!
2115 std::string name = s->GetName();
2116 this->Instance->SNO->WriteToSnoMask('l',"Bursting to \2"+name+"\2.");
2117 this->WriteLine(burst);
2118 /* send our version string */
2119 this->WriteLine(std::string(":")+this->Instance->Config->ServerName+" VERSION :"+this->Instance->GetVersionString());
2120 /* Send server tree */
2121 this->SendServers(Utils->TreeRoot,s,1);
2122 /* Send users and their oper status */
2124 /* Send everything else (channel modes, xlines etc) */
2125 this->SendChannelModes(s);
2126 this->SendXLines(s);
2127 FOREACH_MOD_I(this->Instance,I_OnSyncOtherMetaData,OnSyncOtherMetaData((Module*)Utils->Creator,(void*)this));
2128 this->WriteLine(endburst);
2129 this->Instance->SNO->WriteToSnoMask('l',"Finished bursting to \2"+name+"\2.");
2132 /** This function is called when we receive data from a remote
2133 * server. We buffer the data in a std::string (it doesnt stay
2134 * there for long), reading using InspSocket::Read() which can
2135 * read up to 16 kilobytes in one operation.
2137 * IF THIS FUNCTION RETURNS FALSE, THE CORE CLOSES AND DELETES
2138 * THE SOCKET OBJECT FOR US.
2140 virtual bool OnDataReady()
2142 char* data = this->Read();
2143 /* Check that the data read is a valid pointer and it has some content */
2146 this->in_buffer.append(data);
2147 /* While there is at least one new line in the buffer,
2148 * do something useful (we hope!) with it.
2150 while (in_buffer.find("\n") != std::string::npos)
2152 std::string ret = in_buffer.substr(0,in_buffer.find("\n")-1);
2153 in_buffer = in_buffer.substr(in_buffer.find("\n")+1,in_buffer.length()-in_buffer.find("\n"));
2154 /* Use rfind here not find, as theres more
2155 * chance of the \r being near the end of the
2156 * string, not the start.
2158 if (ret.find("\r") != std::string::npos)
2159 ret = in_buffer.substr(0,in_buffer.find("\r")-1);
2160 /* Process this one, abort if it
2161 * didnt return true.
2167 memset(result,0,1024);
2169 /* ERROR + CAPAB is still allowed unencryped */
2170 if ((ret.substr(0,7) != "ERROR :") && (ret.substr(0,6) != "CAPAB "))
2172 int nbytes = from64tobits(out, ret.c_str(), 1024);
2173 if ((nbytes > 0) && (nbytes < 1024))
2175 ctx_in->Decrypt(out, result, nbytes, 0);
2176 for (int t = 0; t < nbytes; t++)
2178 if (result[t] == '\7')
2180 /* We only need to stick a \0 on the
2181 * first \7, the rest will be lost
2191 if (!this->ProcessLine(ret))
2198 /* EAGAIN returns an empty but non-NULL string, so this
2199 * evaluates to TRUE for EAGAIN but to FALSE for EOF.
2201 return (data && !*data);
2204 int WriteLine(std::string line)
2206 Instance->Log(DEBUG,"OUT: %s",line.c_str());
2210 char result64[10240];
2211 if (this->keylength)
2213 // pad it to the key length
2214 int n = this->keylength - (line.length() % this->keylength);
2216 line.append(n,'\7');
2218 unsigned int ll = line.length();
2219 ctx_out->Encrypt(line.c_str(), result, ll, 0);
2220 to64frombits((unsigned char*)result64,(unsigned char*)result,ll);
2223 line.append("\r\n");
2224 return this->Write(line);
2227 /* Handle ERROR command */
2228 bool Error(std::deque<std::string> ¶ms)
2230 if (params.size() < 1)
2232 this->Instance->SNO->WriteToSnoMask('l',"ERROR from %s: %s",(InboundServerName != "" ? InboundServerName.c_str() : myhost.c_str()),params[0].c_str());
2233 /* we will return false to cause the socket to close. */
2237 /** remote MOTD. leet, huh? */
2238 bool Motd(const std::string &prefix, std::deque<std::string> ¶ms)
2240 if (params.size() > 0)
2242 if (this->Instance->MatchText(this->Instance->Config->ServerName, params[0]))
2244 /* It's for our server */
2245 string_list results;
2246 userrec* source = this->Instance->FindNick(prefix);
2250 std::deque<std::string> par;
2251 par.push_back(prefix);
2254 if (!Instance->Config->MOTD.size())
2256 par[1] = std::string("::")+Instance->Config->ServerName+" 422 "+source->nick+" :Message of the day file is missing.";
2257 Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
2261 par[1] = std::string("::")+Instance->Config->ServerName+" 375 "+source->nick+" :"+Instance->Config->ServerName+" message of the day";
2262 Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
2264 for (unsigned int i = 0; i < Instance->Config->MOTD.size(); i++)
2266 par[1] = std::string("::")+Instance->Config->ServerName+" 372 "+source->nick+" :- "+Instance->Config->MOTD[i];
2267 Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
2270 par[1] = std::string("::")+Instance->Config->ServerName+" 376 "+source->nick+" End of message of the day.";
2271 Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
2277 userrec* source = this->Instance->FindNick(prefix);
2279 Utils->DoOneToOne(prefix, "MOTD", params, params[0]);
2285 /** remote ADMIN. leet, huh? */
2286 bool Admin(const std::string &prefix, std::deque<std::string> ¶ms)
2288 if (params.size() > 0)
2290 if (this->Instance->MatchText(this->Instance->Config->ServerName, params[0]))
2292 /* It's for our server */
2293 string_list results;
2294 userrec* source = this->Instance->FindNick(prefix);
2298 std::deque<std::string> par;
2299 par.push_back(prefix);
2302 par[1] = std::string("::")+Instance->Config->ServerName+" 256 "+source->nick+" :Administrative info for "+Instance->Config->ServerName;
2303 Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
2305 par[1] = std::string("::")+Instance->Config->ServerName+" 257 "+source->nick+" :Name - "+Instance->Config->AdminName;
2306 Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
2308 par[1] = std::string("::")+Instance->Config->ServerName+" 258 "+source->nick+" :Nickname - "+Instance->Config->AdminNick;
2309 Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
2311 par[1] = std::string("::")+Instance->Config->ServerName+" 258 "+source->nick+" :E-Mail - "+Instance->Config->AdminEmail;
2312 Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
2318 userrec* source = this->Instance->FindNick(prefix);
2320 Utils->DoOneToOne(prefix, "ADMIN", params, params[0]);
2326 bool Stats(const std::string &prefix, std::deque<std::string> ¶ms)
2328 /* Get the reply to a STATS query if it matches this servername,
2329 * and send it back as a load of PUSH queries
2331 if (params.size() > 1)
2333 if (this->Instance->MatchText(this->Instance->Config->ServerName, params[1]))
2335 /* It's for our server */
2336 string_list results;
2337 userrec* source = this->Instance->FindNick(prefix);
2340 std::deque<std::string> par;
2341 par.push_back(prefix);
2343 DoStats(this->Instance, *(params[0].c_str()), source, results);
2344 for (size_t i = 0; i < results.size(); i++)
2346 par[1] = "::" + results[i];
2347 Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
2354 userrec* source = this->Instance->FindNick(prefix);
2356 Utils->DoOneToOne(prefix, "STATS", params, params[1]);
2363 /** Because the core won't let users or even SERVERS set +o,
2364 * we use the OPERTYPE command to do this.
2366 bool OperType(const std::string &prefix, std::deque<std::string> ¶ms)
2368 if (params.size() != 1)
2370 Instance->Log(DEBUG,"Received invalid oper type from %s",prefix.c_str());
2373 std::string opertype = params[0];
2374 userrec* u = this->Instance->FindNick(prefix);
2377 u->modes[UM_OPERATOR] = 1;
2378 strlcpy(u->oper,opertype.c_str(),NICKMAX-1);
2379 Utils->DoOneToAllButSender(u->nick,"OPERTYPE",params,u->server);
2384 /** Because Andy insists that services-compatible servers must
2385 * implement SVSNICK and SVSJOIN, that's exactly what we do :p
2387 bool ForceNick(const std::string &prefix, std::deque<std::string> ¶ms)
2389 if (params.size() < 3)
2392 userrec* u = this->Instance->FindNick(params[0]);
2396 Utils->DoOneToAllButSender(prefix,"SVSNICK",params,prefix);
2399 std::deque<std::string> par;
2400 par.push_back(params[1]);
2401 /* This is not required as one is sent in OnUserPostNick below
2403 //Utils->DoOneToMany(u->nick,"NICK",par);
2404 if (!u->ForceNickChange(params[1].c_str()))
2406 userrec::QuitUser(this->Instance, u, "Nickname collision");
2409 u->age = atoi(params[2].c_str());
2416 * Remote SQUIT (RSQUIT). Routing works similar to SVSNICK: Route it to the server that the target is connected to locally,
2417 * then let that server do the dirty work (squit it!). Example:
2418 * A -> B -> C -> D: oper on A squits D, A routes to B, B routes to C, C notices D connected locally, kills it. -- w00t
2420 bool RemoteSquit(const std::string &prefix, std::deque<std::string> ¶ms)
2422 /* ok.. :w00t RSQUIT jupe.barafranca.com :reason here */
2423 if (params.size() < 2)
2426 TreeServer* s = Utils->FindServerMask(params[0]);
2430 if (s == Utils->TreeRoot)
2432 this->Instance->SNO->WriteToSnoMask('l',"What the fuck, I recieved a remote SQUIT for myself? :< (from %s", prefix.c_str());
2436 TreeSocket* sock = s->GetSocket();
2440 /* it's locally connected, KILL IT! */
2441 Instance->Log(DEBUG,"Splitting server %s",s->GetName().c_str());
2442 Instance->SNO->WriteToSnoMask('l',"RSQUIT: Server \002%s\002 removed from network by %s: %s", params[0].c_str(), prefix.c_str(), params[1].c_str());
2443 sock->Squit(s,"Server quit by " + prefix + ": " + params[1]);
2444 Instance->SE->DelFd(sock);
2450 /* route the rsquit */
2451 params[1] = ":" + params[1];
2452 Utils->DoOneToOne(prefix, "RSQUIT", params, params[0]);
2457 /* mother fucker! it doesn't exist */
2463 bool ServiceJoin(const std::string &prefix, std::deque<std::string> ¶ms)
2465 if (params.size() < 2)
2468 userrec* u = this->Instance->FindNick(params[0]);
2472 chanrec::JoinUser(this->Instance, u, params[1].c_str(), false);
2473 Utils->DoOneToAllButSender(prefix,"SVSJOIN",params,prefix);
2478 bool RemoteRehash(const std::string &prefix, std::deque<std::string> ¶ms)
2480 if (params.size() < 1)
2483 std::string servermask = params[0];
2485 if (this->Instance->MatchText(this->Instance->Config->ServerName,servermask))
2487 this->Instance->SNO->WriteToSnoMask('l',"Remote rehash initiated from server \002"+prefix+"\002.");
2488 this->Instance->RehashServer();
2489 Utils->ReadConfiguration(false);
2490 InitializeDisabledCommands(Instance->Config->DisabledCommands, Instance);
2492 Utils->DoOneToAllButSender(prefix,"REHASH",params,prefix);
2496 bool RemoteKill(const std::string &prefix, std::deque<std::string> ¶ms)
2498 if (params.size() != 2)
2501 std::string nick = params[0];
2502 userrec* u = this->Instance->FindNick(prefix);
2503 userrec* who = this->Instance->FindNick(nick);
2507 /* Prepend kill source, if we don't have one */
2508 std::string sourceserv = prefix;
2511 sourceserv = u->server;
2513 if (*(params[1].c_str()) != '[')
2515 params[1] = "[" + sourceserv + "] Killed (" + params[1] +")";
2517 std::string reason = params[1];
2518 params[1] = ":" + params[1];
2519 Utils->DoOneToAllButSender(prefix,"KILL",params,sourceserv);
2520 who->Write(":%s KILL %s :%s (%s)", sourceserv.c_str(), who->nick, sourceserv.c_str(), reason.c_str());
2521 userrec::QuitUser(this->Instance,who,reason);
2526 bool LocalPong(const std::string &prefix, std::deque<std::string> ¶ms)
2528 if (params.size() < 1)
2531 if (params.size() == 1)
2533 TreeServer* ServerSource = Utils->FindServer(prefix);
2536 ServerSource->SetPingFlag();
2541 std::string forwardto = params[1];
2542 if (forwardto == this->Instance->Config->ServerName)
2545 * this is a PONG for us
2546 * if the prefix is a user, check theyre local, and if they are,
2547 * dump the PONG reply back to their fd. If its a server, do nowt.
2548 * Services might want to send these s->s, but we dont need to yet.
2550 userrec* u = this->Instance->FindNick(prefix);
2554 u->WriteServ("PONG %s %s",params[0].c_str(),params[1].c_str());
2559 // not for us, pass it on :)
2560 Utils->DoOneToOne(prefix,"PONG",params,forwardto);
2567 bool MetaData(const std::string &prefix, std::deque<std::string> ¶ms)
2569 if (params.size() < 3)
2572 TreeServer* ServerSource = Utils->FindServer(prefix);
2576 if (params[0] == "*")
2578 FOREACH_MOD_I(this->Instance,I_OnDecodeMetaData,OnDecodeMetaData(TYPE_OTHER,NULL,params[1],params[2]));
2580 else if (*(params[0].c_str()) == '#')
2582 chanrec* c = this->Instance->FindChan(params[0]);
2585 FOREACH_MOD_I(this->Instance,I_OnDecodeMetaData,OnDecodeMetaData(TYPE_CHANNEL,c,params[1],params[2]));
2588 else if (*(params[0].c_str()) != '#')
2590 userrec* u = this->Instance->FindNick(params[0]);
2593 FOREACH_MOD_I(this->Instance,I_OnDecodeMetaData,OnDecodeMetaData(TYPE_USER,u,params[1],params[2]));
2598 params[2] = ":" + params[2];
2599 Utils->DoOneToAllButSender(prefix,"METADATA",params,prefix);
2603 bool ServerVersion(const std::string &prefix, std::deque<std::string> ¶ms)
2605 if (params.size() < 1)
2608 TreeServer* ServerSource = Utils->FindServer(prefix);
2612 ServerSource->SetVersion(params[0]);
2614 params[0] = ":" + params[0];
2615 Utils->DoOneToAllButSender(prefix,"VERSION",params,prefix);
2619 bool ChangeHost(const std::string &prefix, std::deque<std::string> ¶ms)
2621 if (params.size() < 1)
2624 userrec* u = this->Instance->FindNick(prefix);
2628 u->ChangeDisplayedHost(params[0].c_str());
2629 Utils->DoOneToAllButSender(prefix,"FHOST",params,u->server);
2634 bool AddLine(const std::string &prefix, std::deque<std::string> ¶ms)
2636 if (params.size() < 6)
2639 bool propogate = false;
2641 switch (*(params[0].c_str()))
2644 propogate = Instance->XLines->add_zline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
2645 Instance->XLines->zline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
2648 propogate = Instance->XLines->add_qline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
2649 Instance->XLines->qline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
2652 propogate = Instance->XLines->add_eline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
2653 Instance->XLines->eline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
2656 propogate = Instance->XLines->add_gline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
2657 Instance->XLines->gline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
2660 propogate = Instance->XLines->add_kline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
2663 /* Just in case... */
2664 this->Instance->SNO->WriteToSnoMask('x',"\2WARNING\2: Invalid xline type '"+params[0]+"' sent by server "+prefix+", ignored!");
2669 /* Send it on its way */
2672 if (atoi(params[4].c_str()))
2674 this->Instance->SNO->WriteToSnoMask('x',"%s Added %cLINE on %s to expire in %lu seconds (%s).",prefix.c_str(),*(params[0].c_str()),params[1].c_str(),atoi(params[4].c_str()),params[5].c_str());
2678 this->Instance->SNO->WriteToSnoMask('x',"%s Added permenant %cLINE on %s (%s).",prefix.c_str(),*(params[0].c_str()),params[1].c_str(),params[5].c_str());
2680 params[5] = ":" + params[5];
2681 Utils->DoOneToAllButSender(prefix,"ADDLINE",params,prefix);
2683 if (!this->bursting)
2685 Instance->Log(DEBUG,"Applying lines...");
2686 Instance->XLines->apply_lines(APPLY_ZLINES|APPLY_GLINES|APPLY_QLINES);
2691 bool ChangeName(const std::string &prefix, std::deque<std::string> ¶ms)
2693 if (params.size() < 1)
2696 userrec* u = this->Instance->FindNick(prefix);
2700 u->ChangeName(params[0].c_str());
2701 params[0] = ":" + params[0];
2702 Utils->DoOneToAllButSender(prefix,"FNAME",params,u->server);
2707 bool Whois(const std::string &prefix, std::deque<std::string> ¶ms)
2709 if (params.size() < 1)
2712 Instance->Log(DEBUG,"In IDLE command");
2713 userrec* u = this->Instance->FindNick(prefix);
2717 Instance->Log(DEBUG,"USER EXISTS: %s",u->nick);
2718 // an incoming request
2719 if (params.size() == 1)
2721 userrec* x = this->Instance->FindNick(params[0]);
2722 if ((x) && (IS_LOCAL(x)))
2724 userrec* x = this->Instance->FindNick(params[0]);
2725 char signon[MAXBUF];
2728 snprintf(signon,MAXBUF,"%lu",(unsigned long)x->signon);
2729 snprintf(idle,MAXBUF,"%lu",(unsigned long)abs((x->idle_lastmsg)-Instance->Time(true)));
2730 std::deque<std::string> par;
2731 par.push_back(prefix);
2732 par.push_back(signon);
2733 par.push_back(idle);
2734 // ours, we're done, pass it BACK
2735 Utils->DoOneToOne(params[0],"IDLE",par,u->server);
2739 // not ours pass it on
2740 Utils->DoOneToOne(prefix,"IDLE",params,x->server);
2743 else if (params.size() == 3)
2745 std::string who_did_the_whois = params[0];
2746 userrec* who_to_send_to = this->Instance->FindNick(who_did_the_whois);
2747 if ((who_to_send_to) && (IS_LOCAL(who_to_send_to)))
2749 // an incoming reply to a whois we sent out
2750 std::string nick_whoised = prefix;
2751 unsigned long signon = atoi(params[1].c_str());
2752 unsigned long idle = atoi(params[2].c_str());
2753 if ((who_to_send_to) && (IS_LOCAL(who_to_send_to)))
2754 do_whois(this->Instance,who_to_send_to,u,signon,idle,nick_whoised.c_str());
2758 // not ours, pass it on
2759 Utils->DoOneToOne(prefix,"IDLE",params,who_to_send_to->server);
2766 bool Push(const std::string &prefix, std::deque<std::string> ¶ms)
2768 if (params.size() < 2)
2771 userrec* u = this->Instance->FindNick(params[0]);
2778 u->Write(params[1]);
2782 // continue the raw onwards
2783 params[1] = ":" + params[1];
2784 Utils->DoOneToOne(prefix,"PUSH",params,u->server);
2789 bool HandleSetTime(const std::string &prefix, std::deque<std::string> ¶ms)
2791 if (!params.size() || !Utils->EnableTimeSync)
2796 if ((params.size() == 2) && (params[1] == "FORCE"))
2799 time_t rts = atoi(params[0].c_str());
2800 time_t us = Instance->Time(true);
2804 Instance->Log(DEBUG, "Timestamp from %s is equal", prefix.c_str());
2806 Utils->DoOneToAllButSender(prefix, "TIMESET", params, prefix);
2808 else if (force || (rts < us))
2810 int old = Instance->SetTimeDelta(rts - us);
2811 Instance->Log(DEBUG, "%s TS (diff %d) from %s applied (old delta was %d)", (force) ? "Forced" : "Lower", rts - us, prefix.c_str(), old);
2813 Utils->DoOneToAllButSender(prefix, "TIMESET", params, prefix);
2817 Instance->Log(DEBUG, "Higher TS (diff %d) from %s overridden", us - rts, prefix.c_str());
2819 std::deque<std::string> oparams;
2820 oparams.push_back(ConvToStr(us));
2822 Utils->DoOneToMany(prefix, "TIMESET", oparams);
2828 bool Time(const std::string &prefix, std::deque<std::string> ¶ms)
2830 // :source.server TIME remote.server sendernick
2831 // :remote.server TIME source.server sendernick TS
2832 if (params.size() == 2)
2834 // someone querying our time?
2835 if (this->Instance->Config->ServerName == params[0])
2837 userrec* u = this->Instance->FindNick(params[1]);
2840 params.push_back(ConvToStr(Instance->Time(false)));
2842 Utils->DoOneToOne(this->Instance->Config->ServerName,"TIME",params,params[0]);
2847 // not us, pass it on
2848 userrec* u = this->Instance->FindNick(params[1]);
2850 Utils->DoOneToOne(prefix,"TIME",params,params[0]);
2853 else if (params.size() == 3)
2855 // a response to a previous TIME
2856 userrec* u = this->Instance->FindNick(params[1]);
2857 if ((u) && (IS_LOCAL(u)))
2859 time_t rawtime = atol(params[2].c_str());
2860 struct tm * timeinfo;
2861 timeinfo = localtime(&rawtime);
2863 snprintf(tms,26,"%s",asctime(timeinfo));
2865 u->WriteServ("391 %s %s :%s",u->nick,prefix.c_str(),tms);
2870 Utils->DoOneToOne(prefix,"TIME",params,u->server);
2876 bool LocalPing(const std::string &prefix, std::deque<std::string> ¶ms)
2878 if (params.size() < 1)
2881 if (params.size() == 1)
2883 std::string stufftobounce = params[0];
2884 this->WriteLine(std::string(":")+this->Instance->Config->ServerName+" PONG "+stufftobounce);
2889 std::string forwardto = params[1];
2890 if (forwardto == this->Instance->Config->ServerName)
2892 // this is a ping for us, send back PONG to the requesting server
2893 params[1] = params[0];
2894 params[0] = forwardto;
2895 Utils->DoOneToOne(forwardto,"PONG",params,params[1]);
2899 // not for us, pass it on :)
2900 Utils->DoOneToOne(prefix,"PING",params,forwardto);
2906 bool RemoveStatus(const std::string &prefix, std::deque<std::string> ¶ms)
2908 if (params.size() < 1)
2911 chanrec* c = Instance->FindChan(params[0]);
2915 irc::modestacker modestack(false);
2916 CUList *ulist = c->GetUsers();
2918 std::deque<std::string> stackresult;
2921 for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
2923 std::string modesequence = Instance->Modes->ModeString(i->second, c);
2924 if (modesequence.length())
2926 Instance->Log(DEBUG,"Mode sequence = '%s'",modesequence.c_str());
2927 irc::spacesepstream sep(modesequence);
2928 std::string modeletters = sep.GetToken();
2929 Instance->Log(DEBUG,"Mode letters = '%s'",modeletters.c_str());
2931 while (!modeletters.empty())
2933 char mletter = *(modeletters.begin());
2934 modestack.Push(mletter,sep.GetToken());
2935 Instance->Log(DEBUG,"Push letter = '%c'",mletter);
2936 modeletters.erase(modeletters.begin());
2937 Instance->Log(DEBUG,"Mode letters = '%s'",modeletters.c_str());
2942 while (modestack.GetStackedLine(stackresult))
2944 Instance->Log(DEBUG,"Stacked line size %d",stackresult.size());
2945 stackresult.push_front(ConvToStr(c->age));
2946 stackresult.push_front(c->name);
2947 Utils->DoOneToMany(Instance->Config->ServerName, "FMODE", stackresult);
2948 stackresult.erase(stackresult.begin() + 1);
2949 Instance->Log(DEBUG,"Stacked items:");
2950 for (size_t z = 0; z < stackresult.size(); z++)
2952 y[z] = stackresult[z].c_str();
2953 Instance->Log(DEBUG,"\tstackresult[%d]='%s'",z,stackresult[z].c_str());
2955 userrec* n = new userrec(Instance);
2956 n->SetFd(FD_MAGIC_NUMBER);
2957 Instance->SendMode(y, stackresult.size(), n);
2964 bool RemoteServer(const std::string &prefix, std::deque<std::string> ¶ms)
2966 if (params.size() < 4)
2969 std::string servername = params[0];
2970 std::string password = params[1];
2971 // hopcount is not used for a remote server, we calculate this ourselves
2972 std::string description = params[3];
2973 TreeServer* ParentOfThis = Utils->FindServer(prefix);
2977 this->WriteLine("ERROR :Protocol error - Introduced remote server from unknown server "+prefix);
2980 TreeServer* CheckDupe = Utils->FindServer(servername);
2983 this->WriteLine("ERROR :Server "+servername+" already exists!");
2984 this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+servername+"\2 denied, already exists");
2987 TreeServer* Node = new TreeServer(this->Utils,this->Instance,servername,description,ParentOfThis,NULL);
2988 ParentOfThis->AddChild(Node);
2989 params[3] = ":" + params[3];
2990 Utils->DoOneToAllButSender(prefix,"SERVER",params,prefix);
2991 this->Instance->SNO->WriteToSnoMask('l',"Server \002"+prefix+"\002 introduced server \002"+servername+"\002 ("+description+")");
2995 bool Outbound_Reply_Server(std::deque<std::string> ¶ms)
2997 if (params.size() < 4)
3000 irc::string servername = params[0].c_str();
3001 std::string sname = params[0];
3002 std::string password = params[1];
3003 int hops = atoi(params[2].c_str());
3007 this->WriteLine("ERROR :Server too far away for authentication");
3008 this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, server is too far away for authentication");
3011 std::string description = params[3];
3012 for (std::vector<Link>::iterator x = Utils->LinkBlocks.begin(); x < Utils->LinkBlocks.end(); x++)
3014 if ((x->Name == servername) && (x->RecvPass == password))
3016 TreeServer* CheckDupe = Utils->FindServer(sname);
3019 this->WriteLine("ERROR :Server "+sname+" already exists on server "+CheckDupe->GetParent()->GetName()+"!");
3020 this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, already exists on server "+CheckDupe->GetParent()->GetName());
3023 // Begin the sync here. this kickstarts the
3024 // other side, waiting in WAIT_AUTH_2 state,
3025 // into starting their burst, as it shows
3026 // that we're happy.
3027 this->LinkState = CONNECTED;
3028 // we should add the details of this server now
3029 // to the servers tree, as a child of the root
3031 TreeServer* Node = new TreeServer(this->Utils,this->Instance,sname,description,Utils->TreeRoot,this);
3032 Utils->TreeRoot->AddChild(Node);
3033 params[3] = ":" + params[3];
3034 Utils->DoOneToAllButSender(Utils->TreeRoot->GetName(),"SERVER",params,sname);
3035 this->bursting = true;
3036 this->DoBurst(Node);
3040 this->WriteLine("ERROR :Invalid credentials");
3041 this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, invalid link credentials");
3045 bool Inbound_Server(std::deque<std::string> ¶ms)
3047 if (params.size() < 4)
3050 irc::string servername = params[0].c_str();
3051 std::string sname = params[0];
3052 std::string password = params[1];
3053 int hops = atoi(params[2].c_str());
3057 this->WriteLine("ERROR :Server too far away for authentication");
3058 this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, server is too far away for authentication");
3061 std::string description = params[3];
3062 for (std::vector<Link>::iterator x = Utils->LinkBlocks.begin(); x < Utils->LinkBlocks.end(); x++)
3064 if ((x->Name == servername) && (x->RecvPass == password))
3066 TreeServer* CheckDupe = Utils->FindServer(sname);
3069 this->WriteLine("ERROR :Server "+sname+" already exists on server "+CheckDupe->GetParent()->GetName()+"!");
3070 this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, already exists on server "+CheckDupe->GetParent()->GetName());
3073 /* If the config says this link is encrypted, but the remote side
3074 * hasnt bothered to send the AES command before SERVER, then we
3075 * boot them off as we MUST have this connection encrypted.
3077 if ((x->EncryptionKey != "") && (!this->ctx_in))
3079 this->WriteLine("ERROR :This link requires AES encryption to be enabled. Plaintext connection refused.");
3080 this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, remote server did not enable AES.");
3083 this->Instance->SNO->WriteToSnoMask('l',"Verified incoming server connection from \002"+sname+"\002["+(x->HiddenFromStats ? "<hidden>" : this->GetIP())+"] ("+description+")");
3084 this->InboundServerName = sname;
3085 this->InboundDescription = description;
3086 // this is good. Send our details: Our server name and description and hopcount of 0,
3087 // along with the sendpass from this block.
3088 this->WriteLine(std::string("SERVER ")+this->Instance->Config->ServerName+" "+x->SendPass+" 0 :"+this->Instance->Config->ServerDesc);
3089 // move to the next state, we are now waiting for THEM.
3090 this->LinkState = WAIT_AUTH_2;
3094 this->WriteLine("ERROR :Invalid credentials");
3095 this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, invalid link credentials");
3099 void Split(const std::string &line, std::deque<std::string> &n)
3102 irc::tokenstream tokens(line);
3104 while ((param = tokens.GetToken()) != "")
3109 bool ProcessLine(std::string &line)
3111 std::deque<std::string> params;
3112 irc::string command;
3115 line = line.substr(0, line.find_first_of("\r\n"));
3120 Instance->Log(DEBUG,"IN: %s", line.c_str());
3122 this->Split(line.c_str(),params);
3124 if ((params[0][0] == ':') && (params.size() > 1))
3126 prefix = params[0].substr(1);
3130 command = params[0].c_str();
3133 if ((!this->ctx_in) && (command == "AES"))
3135 std::string sserv = params[0];
3136 for (std::vector<Link>::iterator x = Utils->LinkBlocks.begin(); x < Utils->LinkBlocks.end(); x++)
3138 if ((x->EncryptionKey != "") && (x->Name == sserv))
3140 this->InitAES(x->EncryptionKey,sserv);
3146 else if ((this->ctx_in) && (command == "AES"))
3148 this->Instance->SNO->WriteToSnoMask('l',"\2AES\2: Encryption already enabled on this connection yet %s is trying to enable it twice!",params[0].c_str());
3151 switch (this->LinkState)
3156 // Waiting for SERVER command from remote server. Server initiating
3157 // the connection sends the first SERVER command, listening server
3158 // replies with theirs if its happy, then if the initiator is happy,
3159 // it starts to send its net sync, which starts the merge, otherwise
3160 // it sends an ERROR.
3161 if (command == "PASS")
3163 /* Silently ignored */
3165 else if (command == "SERVER")
3167 return this->Inbound_Server(params);
3169 else if (command == "ERROR")
3171 return this->Error(params);
3173 else if (command == "USER")
3175 this->WriteLine("ERROR :Client connections to this port are prohibited.");
3178 else if (command == "CAPAB")
3180 return this->Capab(params);
3182 else if ((command == "U") || (command == "S"))
3184 this->WriteLine("ERROR :Cannot use the old-style mesh linking protocol with m_spanningtree.so!");
3189 std::string error("ERROR :Invalid command in negotiation phase: ");
3190 error.append(command.c_str());
3191 this->WriteLine(error);
3196 // Waiting for start of other side's netmerge to say they liked our
3198 if (command == "SERVER")
3200 // cant do this, they sent it to us in the WAIT_AUTH_1 state!
3204 else if ((command == "U") || (command == "S"))
3206 this->WriteLine("ERROR :Cannot use the old-style mesh linking protocol with m_spanningtree.so!");
3209 else if (command == "BURST")
3211 if (params.size() && Utils->EnableTimeSync)
3213 /* If a time stamp is provided, apply synchronization */
3215 time_t them = atoi(params[0].c_str());
3216 time_t us = Instance->Time(true);
3217 int delta = them - us;
3219 if ((params.size() == 2) && (params[1] == "FORCE"))
3222 if ((delta < -600) || (delta > 600))
3224 this->Instance->SNO->WriteToSnoMask('l',"\2ERROR\2: Your clocks are out by %d seconds (this is more than ten minutes). Link aborted, \2PLEASE SYNC YOUR CLOCKS!\2",abs(delta));
3225 this->WriteLine("ERROR :Your clocks are out by "+ConvToStr(abs(delta))+" seconds (this is more than ten minutes). Link aborted, PLEASE SYNC YOUR CLOCKS!");
3231 this->Instance->Log(DEBUG, "Timestamps are equal; pat yourself on the back");
3233 else if (force || (us > them))
3235 this->Instance->Log(DEBUG, "Remote server has lower TS (%d seconds)", them - us);
3236 this->Instance->SetTimeDelta(them - us);
3237 // Send this new timestamp to any other servers
3238 Utils->DoOneToMany(Utils->TreeRoot->GetName(), "TIMESET", params);
3242 // Override the timestamp
3243 this->Instance->Log(DEBUG, "We have a higher timestamp (by %d seconds), not updating delta", us - them);
3244 this->WriteLine(":" + Utils->TreeRoot->GetName() + " TIMESET " + ConvToStr(us));
3247 this->LinkState = CONNECTED;
3248 Node = new TreeServer(this->Utils,this->Instance,InboundServerName,InboundDescription,Utils->TreeRoot,this);
3249 Utils->TreeRoot->AddChild(Node);
3251 params.push_back(InboundServerName);
3252 params.push_back("*");
3253 params.push_back("1");
3254 params.push_back(":"+InboundDescription);
3255 Utils->DoOneToAllButSender(Utils->TreeRoot->GetName(),"SERVER",params,InboundServerName);
3256 this->bursting = true;
3257 this->DoBurst(Node);
3259 else if (command == "ERROR")
3261 return this->Error(params);
3263 else if (command == "CAPAB")
3265 return this->Capab(params);
3270 this->WriteLine("ERROR :Internal error -- listening socket accepted its own descriptor!!!");
3274 if (command == "SERVER")
3276 // another server we connected to, which was in WAIT_AUTH_1 state,
3277 // has just sent us their credentials. If we get this far, theyre
3278 // happy with OUR credentials, and they are now in WAIT_AUTH_2 state.
3279 // if we're happy with this, we should send our netburst which
3280 // kickstarts the merge.
3281 return this->Outbound_Reply_Server(params);
3283 else if (command == "ERROR")
3285 return this->Error(params);
3289 // This is the 'authenticated' state, when all passwords
3290 // have been exchanged and anything past this point is taken
3295 std::string direction = prefix;
3296 userrec* t = this->Instance->FindNick(prefix);
3299 direction = t->server;
3301 TreeServer* route_back_again = Utils->BestRouteTo(direction);
3302 if ((!route_back_again) || (route_back_again->GetSocket() != this))
3304 if (route_back_again)
3305 Instance->Log(DEBUG,"Protocol violation: Fake direction in command '%s' from connection '%s'",line.c_str(),this->GetName().c_str());
3310 * When there is activity on the socket, reset the ping counter so
3311 * that we're not wasting bandwidth pinging an active server.
3313 route_back_again->SetNextPingTime(time(NULL) + 60);
3314 route_back_again->SetPingFlag();
3317 if (command == "SVSMODE")
3319 /* Services expects us to implement
3320 * SVSMODE. In inspircd its the same as
3325 std::string target = "";
3326 /* Yes, know, this is a mess. Its reasonably fast though as we're
3327 * working with std::string here.
3329 if ((command == "NICK") && (params.size() > 1))
3331 return this->IntroduceClient(prefix,params);
3333 else if (command == "FJOIN")
3335 return this->ForceJoin(prefix,params);
3337 else if (command == "STATS")
3339 return this->Stats(prefix, params);
3341 else if (command == "MOTD")
3343 return this->Motd(prefix, params);
3345 else if (command == "ADMIN")
3347 return this->Admin(prefix, params);
3349 else if (command == "SERVER")
3351 return this->RemoteServer(prefix,params);
3353 else if (command == "ERROR")
3355 return this->Error(params);
3357 else if (command == "OPERTYPE")
3359 return this->OperType(prefix,params);
3361 else if (command == "FMODE")
3363 return this->ForceMode(prefix,params);
3365 else if (command == "KILL")
3367 return this->RemoteKill(prefix,params);
3369 else if (command == "FTOPIC")
3371 return this->ForceTopic(prefix,params);
3373 else if (command == "REHASH")
3375 return this->RemoteRehash(prefix,params);
3377 else if (command == "METADATA")
3379 return this->MetaData(prefix,params);
3381 else if (command == "REMSTATUS")
3383 return this->RemoveStatus(prefix,params);
3385 else if (command == "PING")
3388 * We just got a ping from a server that's bursting.
3389 * This can't be right, so set them to not bursting, and
3390 * apply their lines.
3394 this->bursting = false;
3395 Instance->XLines->apply_lines(APPLY_ZLINES|APPLY_GLINES|APPLY_QLINES);
3399 prefix = this->GetName();
3401 return this->LocalPing(prefix,params);
3403 else if (command == "PONG")
3406 * We just got a pong from a server that's bursting.
3407 * This can't be right, so set them to not bursting, and
3408 * apply their lines.
3412 this->bursting = false;
3413 Instance->XLines->apply_lines(APPLY_ZLINES|APPLY_GLINES|APPLY_QLINES);
3417 prefix = this->GetName();
3419 return this->LocalPong(prefix,params);
3421 else if (command == "VERSION")
3423 return this->ServerVersion(prefix,params);
3425 else if (command == "FHOST")
3427 return this->ChangeHost(prefix,params);
3429 else if (command == "FNAME")
3431 return this->ChangeName(prefix,params);
3433 else if (command == "ADDLINE")
3435 return this->AddLine(prefix,params);
3437 else if (command == "SVSNICK")
3441 prefix = this->GetName();
3443 return this->ForceNick(prefix,params);
3445 else if (command == "RSQUIT")
3447 return this->RemoteSquit(prefix, params);
3449 else if (command == "IDLE")
3451 return this->Whois(prefix,params);
3453 else if (command == "PUSH")
3455 return this->Push(prefix,params);
3457 else if (command == "TIMESET")
3459 return this->HandleSetTime(prefix, params);
3461 else if (command == "TIME")
3463 return this->Time(prefix,params);
3465 else if ((command == "KICK") && (Utils->IsServer(prefix)))
3467 std::string sourceserv = this->myhost;
3468 if (params.size() == 3)
3470 userrec* user = this->Instance->FindNick(params[1]);
3471 chanrec* chan = this->Instance->FindChan(params[0]);
3474 if (!chan->ServerKickUser(user, params[2].c_str(), false))
3475 /* Yikes, the channels gone! */
3479 if (this->InboundServerName != "")
3481 sourceserv = this->InboundServerName;
3483 return Utils->DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
3485 else if (command == "SVSJOIN")
3489 prefix = this->GetName();
3491 return this->ServiceJoin(prefix,params);
3493 else if (command == "SQUIT")
3495 if (params.size() == 2)
3497 this->Squit(Utils->FindServer(params[0]),params[1]);
3501 else if (command == "OPERNOTICE")
3503 std::string sourceserv = this->myhost;
3505 if (this->InboundServerName != "")
3506 sourceserv = this->InboundServerName;
3508 if (params.size() >= 1)
3509 Instance->WriteOpers("*** From " + sourceserv + ": " + params[0]);
3511 return Utils->DoOneToAllButSenderRaw(line, sourceserv, prefix, command, params);
3513 else if (command == "MODENOTICE")
3515 std::string sourceserv = this->myhost;
3516 if (this->InboundServerName != "")
3517 sourceserv = this->InboundServerName;
3518 if (params.size() >= 2)
3520 Instance->WriteMode(params[0].c_str(), WM_AND, "*** From %s: %s", sourceserv.c_str(), params[1].c_str());
3523 return Utils->DoOneToAllButSenderRaw(line, sourceserv, prefix, command, params);
3525 else if (command == "SNONOTICE")
3527 std::string sourceserv = this->myhost;
3528 if (this->InboundServerName != "")
3529 sourceserv = this->InboundServerName;
3530 if (params.size() >= 2)
3532 Instance->SNO->WriteToSnoMask(*(params[0].c_str()), "From " + sourceserv + ": "+ params[1]);
3535 return Utils->DoOneToAllButSenderRaw(line, sourceserv, prefix, command, params);
3537 else if (command == "ENDBURST")
3539 this->bursting = false;
3540 Instance->XLines->apply_lines(APPLY_ZLINES|APPLY_GLINES|APPLY_QLINES);
3541 std::string sourceserv = this->myhost;
3542 if (this->InboundServerName != "")
3544 sourceserv = this->InboundServerName;
3546 this->Instance->SNO->WriteToSnoMask('l',"Received end of netburst from \2%s\2",sourceserv.c_str());
3548 Event rmode((char*)sourceserv.c_str(), (Module*)Utils->Creator, "new_server");
3549 rmode.Send(Instance);
3555 // not a special inter-server command.
3556 // Emulate the actual user doing the command,
3557 // this saves us having a huge ugly parser.
3558 userrec* who = this->Instance->FindNick(prefix);
3559 std::string sourceserv = this->myhost;
3560 if (this->InboundServerName != "")
3562 sourceserv = this->InboundServerName;
3564 if ((!who) && (command == "MODE"))
3566 if (Utils->IsServer(prefix))
3568 const char* modelist[127];
3569 for (size_t i = 0; i < params.size(); i++)
3570 modelist[i] = params[i].c_str();
3572 userrec* fake = new userrec(Instance);
3573 fake->SetFd(FD_MAGIC_NUMBER);
3575 this->Instance->SendMode(modelist, params.size(), fake);
3579 /* Hot potato! pass it on! */
3580 return Utils->DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
3585 if ((command == "NICK") && (params.size() > 0))
3587 /* On nick messages, check that the nick doesnt
3588 * already exist here. If it does, kill their copy,
3591 userrec* x = this->Instance->FindNick(params[0]);
3592 if ((x) && (x != who))
3594 std::deque<std::string> p;
3595 p.push_back(params[0]);
3596 p.push_back("Nickname collision ("+prefix+" -> "+params[0]+")");
3597 Utils->DoOneToMany(this->Instance->Config->ServerName,"KILL",p);
3599 p.push_back(prefix);
3600 p.push_back("Nickname collision");
3601 Utils->DoOneToMany(this->Instance->Config->ServerName,"KILL",p);
3602 userrec::QuitUser(this->Instance,x,"Nickname collision ("+prefix+" -> "+params[0]+")");
3603 userrec* y = this->Instance->FindNick(prefix);
3606 userrec::QuitUser(this->Instance,y,"Nickname collision");
3608 return Utils->DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
3612 target = who->server;
3613 const char* strparams[127];
3614 for (unsigned int q = 0; q < params.size(); q++)
3616 strparams[q] = params[q].c_str();
3618 switch (this->Instance->CallCommandHandler(command.c_str(), strparams, params.size(), who))
3621 this->WriteLine("ERROR :Unrecognised command '"+std::string(command.c_str())+"' -- possibly loaded mismatched modules");
3628 /* CMD_SUCCESS and CMD_USER_DELETED fall through here */
3634 // its not a user. Its either a server, or somethings screwed up.
3635 if (Utils->IsServer(prefix))
3637 target = this->Instance->Config->ServerName;
3641 Instance->Log(DEBUG,"Command with unknown origin '%s'",prefix.c_str());
3645 return Utils->DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
3654 virtual std::string GetName()
3656 std::string sourceserv = this->myhost;
3657 if (this->InboundServerName != "")
3659 sourceserv = this->InboundServerName;
3664 virtual void OnTimeout()
3666 if (this->LinkState == CONNECTING)
3668 this->Instance->SNO->WriteToSnoMask('l',"CONNECT: Connection to \002"+myhost+"\002 timed out.");
3669 Link* MyLink = Utils->FindLink(myhost);
3671 Utils->DoFailOver(MyLink);
3675 virtual void OnClose()
3677 // Connection closed.
3678 // If the connection is fully up (state CONNECTED)
3679 // then propogate a netsplit to all peers.
3680 std::string quitserver = this->myhost;
3681 if (this->InboundServerName != "")
3683 quitserver = this->InboundServerName;
3685 TreeServer* s = Utils->FindServer(quitserver);
3688 Squit(s,"Remote host closed the connection");
3691 if (quitserver != "")
3692 this->Instance->SNO->WriteToSnoMask('l',"Connection to '\2%s\2' failed.",quitserver.c_str());
3695 virtual int OnIncomingConnection(int newsock, char* ip)
3697 /* To prevent anyone from attempting to flood opers/DDoS by connecting to the server port,
3698 * or discovering if this port is the server port, we don't allow connections from any
3699 * IPs for which we don't have a link block.
3703 found = (std::find(Utils->ValidIPs.begin(), Utils->ValidIPs.end(), ip) != Utils->ValidIPs.end());
3706 for (vector<std::string>::iterator i = Utils->ValidIPs.begin(); i != Utils->ValidIPs.end(); i++)
3707 if (irc::sockets::MatchCIDR(ip, (*i).c_str()))
3712 this->Instance->SNO->WriteToSnoMask('l',"Server connection from %s denied (no link blocks with that IP address)", ip);
3717 TreeSocket* s = new TreeSocket(this->Utils, this->Instance, newsock, ip);
3718 s = s; /* Whinge whinge whinge, thats all GCC ever does. */
3723 /** This class is used to resolve server hostnames during /connect and autoconnect.
3724 * As of 1.1, the resolver system is seperated out from InspSocket, so we must do this
3725 * resolver step first ourselves if we need it. This is totally nonblocking, and will
3726 * callback to OnLookupComplete or OnError when completed. Once it has completed we
3727 * will have an IP address which we can then use to continue our connection.
3729 class ServernameResolver : public Resolver
3732 /** A copy of the Link tag info for what we're connecting to.
3733 * We take a copy, rather than using a pointer, just in case the
3734 * admin takes the tag away and rehashes while the domain is resolving.
3737 SpanningTreeUtilities* Utils;
3739 ServernameResolver(Module* me, SpanningTreeUtilities* Util, InspIRCd* Instance, const std::string &hostname, Link x) : Resolver(Instance, hostname, DNS_QUERY_FORWARD, me), MyLink(x), Utils(Util)
3741 /* Nothing in here, folks */
3744 void OnLookupComplete(const std::string &result)
3746 /* Initiate the connection, now that we have an IP to use.
3747 * Passing a hostname directly to InspSocket causes it to
3748 * just bail and set its FD to -1.
3750 TreeServer* CheckDupe = Utils->FindServer(MyLink.Name.c_str());
3751 if (!CheckDupe) /* Check that nobody tried to connect it successfully while we were resolving */
3753 TreeSocket* newsocket = new TreeSocket(this->Utils, ServerInstance, result,MyLink.Port,false,MyLink.Timeout ? MyLink.Timeout : 10,MyLink.Name.c_str());
3754 if (newsocket->GetFd() > -1)
3760 /* Something barfed, show the opers */
3761 ServerInstance->SNO->WriteToSnoMask('l',"CONNECT: Error connecting \002%s\002: %s.",MyLink.Name.c_str(),strerror(errno));
3763 Utils->DoFailOver(&MyLink);
3768 void OnError(ResolverError e, const std::string &errormessage)
3771 ServerInstance->SNO->WriteToSnoMask('l',"CONNECT: Error connecting \002%s\002: Unable to resolve hostname - %s",MyLink.Name.c_str(),errormessage.c_str());
3772 Utils->DoFailOver(&MyLink);
3776 /** Handle resolving of server IPs for the cache
3778 class SecurityIPResolver : public Resolver
3782 SpanningTreeUtilities* Utils;
3784 SecurityIPResolver(Module* me, SpanningTreeUtilities* U, InspIRCd* Instance, const std::string &hostname, Link x) : Resolver(Instance, hostname, DNS_QUERY_FORWARD, me), MyLink(x), Utils(U)
3788 void OnLookupComplete(const std::string &result)
3790 ServerInstance->Log(DEBUG,"Security IP cache: Adding IP address '%s' for Link '%s'",result.c_str(),MyLink.Name.c_str());
3791 Utils->ValidIPs.push_back(result);
3794 void OnError(ResolverError e, const std::string &errormessage)
3796 ServerInstance->Log(DEBUG,"Could not resolve IP associated with Link '%s': %s",MyLink.Name.c_str(),errormessage.c_str());
3800 SpanningTreeUtilities::SpanningTreeUtilities(InspIRCd* Instance, ModuleSpanningTree* C) : ServerInstance(Instance), Creator(C)
3803 this->ReadConfiguration(true);
3804 this->TreeRoot = new TreeServer(this, ServerInstance, ServerInstance->Config->ServerName, ServerInstance->Config->ServerDesc);
3807 SpanningTreeUtilities::~SpanningTreeUtilities()
3809 for (unsigned int i = 0; i < Bindings.size(); i++)
3811 ServerInstance->Log(DEBUG,"Freeing binding %d of %d",i, Bindings.size());
3812 ServerInstance->SE->DelFd(Bindings[i]);
3813 Bindings[i]->Close();
3814 DELETE(Bindings[i]);
3816 ServerInstance->Log(DEBUG,"Freeing connected servers...");
3817 while (TreeRoot->ChildCount())
3819 TreeServer* child_server = TreeRoot->GetChild(0);
3820 ServerInstance->Log(DEBUG,"Freeing connected server %s", child_server->GetName().c_str());
3823 TreeSocket* sock = child_server->GetSocket();
3824 ServerInstance->SE->DelFd(sock);
3832 void SpanningTreeUtilities::AddThisServer(TreeServer* server, TreeServerList &list)
3834 if (list.find(server) == list.end())
3835 list[server] = server;
3838 /** returns a list of DIRECT servernames for a specific channel */
3839 void SpanningTreeUtilities::GetListOfServersForChannel(chanrec* c, TreeServerList &list, char status, const CUList &exempt_list)
3845 ulist = c->GetOppedUsers();
3848 ulist = c->GetHalfoppedUsers();
3851 ulist = c->GetVoicedUsers();
3854 ulist = c->GetUsers();
3857 for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
3859 if ((i->second->GetFd() < 0) && (exempt_list.find(i->second) == exempt_list.end()))
3861 TreeServer* best = this->BestRouteTo(i->second->server);
3863 AddThisServer(best,list);
3869 bool SpanningTreeUtilities::DoOneToAllButSenderRaw(const std::string &data, const std::string &omit, const std::string &prefix, const irc::string &command, std::deque<std::string> ¶ms)
3872 TreeServer* omitroute = this->BestRouteTo(omit);
3873 if ((command == "NOTICE") || (command == "PRIVMSG"))
3875 if (params.size() >= 2)
3878 if ((*(params[0].c_str()) == '@') || (*(params[0].c_str()) == '%') || (*(params[0].c_str()) == '+'))
3881 params[0] = params[0].substr(1, params[0].length()-1);
3883 if ((*(params[0].c_str()) != '#') && (*(params[0].c_str()) != '$'))
3885 // special routing for private messages/notices
3886 userrec* d = ServerInstance->FindNick(params[0]);
3889 std::deque<std::string> par;
3890 par.push_back(params[0]);
3891 par.push_back(":"+params[1]);
3892 this->DoOneToOne(prefix,command.c_str(),par,d->server);
3896 else if (*(params[0].c_str()) == '$')
3898 std::deque<std::string> par;
3899 par.push_back(params[0]);
3900 par.push_back(":"+params[1]);
3901 this->DoOneToAllButSender(prefix,command.c_str(),par,omitroute->GetName());
3906 chanrec* c = ServerInstance->FindChan(params[0]);
3907 userrec* u = ServerInstance->FindNick(prefix);
3911 TreeServerList list;
3912 FOREACH_MOD(I_OnBuildExemptList, OnBuildExemptList((command == "PRIVMSG" ? MSG_PRIVMSG : MSG_NOTICE), c, u, pfx, elist));
3913 GetListOfServersForChannel(c,list,pfx,elist);
3915 for (TreeServerList::iterator i = list.begin(); i != list.end(); i++)
3917 TreeSocket* Sock = i->second->GetSocket();
3918 if ((Sock) && (i->second->GetName() != omit) && (omitroute != i->second))
3920 Sock->WriteLine(data);
3928 unsigned int items =this->TreeRoot->ChildCount();
3929 for (unsigned int x = 0; x < items; x++)
3931 TreeServer* Route = this->TreeRoot->GetChild(x);
3932 if ((Route) && (Route->GetSocket()) && (Route->GetName() != omit) && (omitroute != Route))
3934 TreeSocket* Sock = Route->GetSocket();
3936 Sock->WriteLine(data);
3942 bool SpanningTreeUtilities::DoOneToAllButSender(const std::string &prefix, const std::string &command, std::deque<std::string> ¶ms, std::string omit)
3944 TreeServer* omitroute = this->BestRouteTo(omit);
3945 std::string FullLine = ":" + prefix + " " + command;
3946 unsigned int words = params.size();
3947 for (unsigned int x = 0; x < words; x++)
3949 FullLine = FullLine + " " + params[x];
3951 unsigned int items = this->TreeRoot->ChildCount();
3952 for (unsigned int x = 0; x < items; x++)
3954 TreeServer* Route = this->TreeRoot->GetChild(x);
3955 // Send the line IF:
3956 // The route has a socket (its a direct connection)
3957 // The route isnt the one to be omitted
3958 // The route isnt the path to the one to be omitted
3959 if ((Route) && (Route->GetSocket()) && (Route->GetName() != omit) && (omitroute != Route))
3961 TreeSocket* Sock = Route->GetSocket();
3963 Sock->WriteLine(FullLine);
3969 bool SpanningTreeUtilities::DoOneToMany(const std::string &prefix, const std::string &command, std::deque<std::string> ¶ms)
3971 std::string FullLine = ":" + prefix + " " + command;
3972 unsigned int words = params.size();
3973 for (unsigned int x = 0; x < words; x++)
3975 FullLine = FullLine + " " + params[x];
3977 unsigned int items = this->TreeRoot->ChildCount();
3978 for (unsigned int x = 0; x < items; x++)
3980 TreeServer* Route = this->TreeRoot->GetChild(x);
3981 if (Route && Route->GetSocket())
3983 TreeSocket* Sock = Route->GetSocket();
3985 Sock->WriteLine(FullLine);
3991 bool SpanningTreeUtilities::DoOneToMany(const char* prefix, const char* command, std::deque<std::string> ¶ms)
3993 std::string spfx = prefix;
3994 std::string scmd = command;
3995 return this->DoOneToMany(spfx, scmd, params);
3998 bool SpanningTreeUtilities::DoOneToAllButSender(const char* prefix, const char* command, std::deque<std::string> ¶ms, std::string omit)
4000 std::string spfx = prefix;
4001 std::string scmd = command;
4002 return this->DoOneToAllButSender(spfx, scmd, params, omit);
4005 bool SpanningTreeUtilities::DoOneToOne(const std::string &prefix, const std::string &command, std::deque<std::string> ¶ms, std::string target)
4007 TreeServer* Route = this->BestRouteTo(target);
4010 std::string FullLine = ":" + prefix + " " + command;
4011 unsigned int words = params.size();
4012 for (unsigned int x = 0; x < words; x++)
4014 FullLine = FullLine + " " + params[x];
4016 if (Route && Route->GetSocket())
4018 TreeSocket* Sock = Route->GetSocket();
4020 Sock->WriteLine(FullLine);
4030 void SpanningTreeUtilities::ReadConfiguration(bool rebind)
4032 ConfigReader* Conf = new ConfigReader(ServerInstance);
4035 for (int j =0; j < Conf->Enumerate("bind"); j++)
4037 std::string Type = Conf->ReadValue("bind","type",j);
4038 std::string IP = Conf->ReadValue("bind","address",j);
4039 std::string Port = Conf->ReadValue("bind","port",j);
4040 if (Type == "servers")
4042 irc::portparser portrange(Port, false);
4044 while ((portno = portrange.GetToken()))
4046 ServerInstance->Log(DEBUG,"m_spanningtree: Binding server port %s:%d", IP.c_str(), portno);
4050 TreeSocket* listener = new TreeSocket(this, ServerInstance, IP.c_str(), portno, true, 10);
4051 if (listener->GetState() == I_LISTENING)
4053 ServerInstance->Log(DEFAULT,"m_spanningtree: Binding server port %s:%d successful!", IP.c_str(), portno);
4054 Bindings.push_back(listener);
4058 ServerInstance->Log(DEFAULT,"m_spanningtree: Warning: Failed to bind server port %s:%d",IP.c_str(), portno);
4062 ServerInstance->Log(DEBUG,"Done with this binding");
4067 FlatLinks = Conf->ReadFlag("options","flatlinks",0);
4068 HideULines = Conf->ReadFlag("options","hideulines",0);
4069 AnnounceTSChange = Conf->ReadFlag("options","announcets",0);
4070 EnableTimeSync = !(Conf->ReadFlag("options","notimesync",0));
4073 for (int j =0; j < Conf->Enumerate("link"); j++)
4076 std::string Allow = Conf->ReadValue("link","allowmask",j);
4077 L.Name = (Conf->ReadValue("link","name",j)).c_str();
4078 L.IPAddr = Conf->ReadValue("link","ipaddr",j);
4079 L.FailOver = Conf->ReadValue("link","failover",j).c_str();
4080 L.Port = Conf->ReadInteger("link","port",j,true);
4081 L.SendPass = Conf->ReadValue("link","sendpass",j);
4082 L.RecvPass = Conf->ReadValue("link","recvpass",j);
4083 L.AutoConnect = Conf->ReadInteger("link","autoconnect",j,true);
4084 L.EncryptionKey = Conf->ReadValue("link","encryptionkey",j);
4085 L.HiddenFromStats = Conf->ReadFlag("link","hidden",j);
4086 L.Timeout = Conf->ReadInteger("link","timeout",j,true);
4087 L.NextConnectTime = time(NULL) + L.AutoConnect;
4088 /* Bugfix by brain, do not allow people to enter bad configurations */
4089 if (L.Name != ServerInstance->Config->ServerName)
4091 if ((L.IPAddr != "") && (L.RecvPass != "") && (L.SendPass != "") && (L.Name != "") && (L.Port))
4093 ValidIPs.push_back(L.IPAddr);
4096 ValidIPs.push_back(Allow);
4098 /* Needs resolving */
4100 if (insp_aton(L.IPAddr.c_str(), &binip) < 1)
4104 SecurityIPResolver* sr = new SecurityIPResolver((Module*)this->Creator, this, ServerInstance, L.IPAddr, L);
4105 ServerInstance->AddResolver(sr);
4107 catch (ModuleException& e)
4109 ServerInstance->Log(DEBUG,"Error in resolver: %s",e.GetReason());
4113 LinkBlocks.push_back(L);
4114 ServerInstance->Log(DEBUG,"m_spanningtree: Read server %s with host %s:%d",L.Name.c_str(),L.IPAddr.c_str(),L.Port);
4120 ServerInstance->Log(DEFAULT,"Invalid configuration for server '%s', IP address not defined!",L.Name.c_str());
4122 else if (L.RecvPass == "")
4124 ServerInstance->Log(DEFAULT,"Invalid configuration for server '%s', recvpass not defined!",L.Name.c_str());
4126 else if (L.SendPass == "")
4128 ServerInstance->Log(DEFAULT,"Invalid configuration for server '%s', sendpass not defined!",L.Name.c_str());
4130 else if (L.Name == "")
4132 ServerInstance->Log(DEFAULT,"Invalid configuration, link tag without a name!");
4136 ServerInstance->Log(DEFAULT,"Invalid configuration for server '%s', no port specified!",L.Name.c_str());
4142 ServerInstance->Log(DEFAULT,"Invalid configuration for server '%s', link tag has the same server name as the local server!",L.Name.c_str());
4148 /** To create a timer which recurs every second, we inherit from InspTimer.
4149 * InspTimer is only one-shot however, so at the end of each Tick() we simply
4150 * insert another of ourselves into the pending queue :)
4152 class TimeSyncTimer : public InspTimer
4156 ModuleSpanningTree *Module;
4158 TimeSyncTimer(InspIRCd *Instance, ModuleSpanningTree *Mod);
4159 virtual void Tick(time_t TIME);
4162 class ModuleSpanningTree : public Module
4166 unsigned int max_local;
4167 unsigned int max_global;
4168 cmd_rconnect* command_rconnect;
4169 SpanningTreeUtilities* Utils;
4172 TimeSyncTimer *SyncTimer;
4174 ModuleSpanningTree(InspIRCd* Me)
4175 : Module::Module(Me), max_local(0), max_global(0)
4177 Utils = new SpanningTreeUtilities(Me, this);
4179 command_rconnect = new cmd_rconnect(ServerInstance, this, Utils);
4180 ServerInstance->AddCommand(command_rconnect);
4182 if (Utils->EnableTimeSync)
4184 SyncTimer = new TimeSyncTimer(ServerInstance, this);
4185 ServerInstance->Timers->AddTimer(SyncTimer);
4191 void ShowLinks(TreeServer* Current, userrec* user, int hops)
4193 std::string Parent = Utils->TreeRoot->GetName();
4194 if (Current->GetParent())
4196 Parent = Current->GetParent()->GetName();
4198 for (unsigned int q = 0; q < Current->ChildCount(); q++)
4200 if ((Utils->HideULines) && (ServerInstance->ULine(Current->GetChild(q)->GetName().c_str())))
4204 ShowLinks(Current->GetChild(q),user,hops+1);
4209 ShowLinks(Current->GetChild(q),user,hops+1);
4212 /* Don't display the line if its a uline, hide ulines is on, and the user isnt an oper */
4213 if ((Utils->HideULines) && (ServerInstance->ULine(Current->GetName().c_str())) && (!*user->oper))
4215 user->WriteServ("364 %s %s %s :%d %s",user->nick,Current->GetName().c_str(),(Utils->FlatLinks && (!*user->oper)) ? ServerInstance->Config->ServerName : Parent.c_str(),(Utils->FlatLinks && (!*user->oper)) ? 0 : hops,Current->GetDesc().c_str());
4218 int CountLocalServs()
4220 return Utils->TreeRoot->ChildCount();
4225 return Utils->serverlist.size();
4228 void HandleLinks(const char** parameters, int pcnt, userrec* user)
4230 ShowLinks(Utils->TreeRoot,user,0);
4231 user->WriteServ("365 %s * :End of /LINKS list.",user->nick);
4235 void HandleLusers(const char** parameters, int pcnt, userrec* user)
4237 unsigned int n_users = ServerInstance->UserCount();
4239 /* Only update these when someone wants to see them, more efficient */
4240 if ((unsigned int)ServerInstance->LocalUserCount() > max_local)
4241 max_local = ServerInstance->LocalUserCount();
4242 if (n_users > max_global)
4243 max_global = n_users;
4245 unsigned int ulined_count = 0;
4246 unsigned int ulined_local_count = 0;
4248 /* If ulined are hidden and we're not an oper, count the number of ulined servers hidden,
4249 * locally and globally (locally means directly connected to us)
4251 if ((Utils->HideULines) && (!*user->oper))
4253 for (server_hash::iterator q = Utils->serverlist.begin(); q != Utils->serverlist.end(); q++)
4255 if (ServerInstance->ULine(q->second->GetName().c_str()))
4258 if (q->second->GetParent() == Utils->TreeRoot)
4259 ulined_local_count++;
4264 user->WriteServ("251 %s :There are %d users and %d invisible on %d servers",user->nick,n_users-ServerInstance->InvisibleUserCount(),ServerInstance->InvisibleUserCount(),ulined_count ? this->CountServs() - ulined_count : this->CountServs());
4265 if (ServerInstance->OperCount())
4266 user->WriteServ("252 %s %d :operator(s) online",user->nick,ServerInstance->OperCount());
4267 if (ServerInstance->UnregisteredUserCount())
4268 user->WriteServ("253 %s %d :unknown connections",user->nick,ServerInstance->UnregisteredUserCount());
4269 if (ServerInstance->ChannelCount())
4270 user->WriteServ("254 %s %d :channels formed",user->nick,ServerInstance->ChannelCount());
4271 user->WriteServ("254 %s :I have %d clients and %d servers",user->nick,ServerInstance->LocalUserCount(),ulined_local_count ? this->CountLocalServs() - ulined_local_count : this->CountLocalServs());
4272 user->WriteServ("265 %s :Current Local Users: %d Max: %d",user->nick,ServerInstance->LocalUserCount(),max_local);
4273 user->WriteServ("266 %s :Current Global Users: %d Max: %d",user->nick,n_users,max_global);
4277 // WARNING: NOT THREAD SAFE - DONT GET ANY SMART IDEAS.
4279 void ShowMap(TreeServer* Current, userrec* user, int depth, char matrix[128][80], float &totusers, float &totservers)
4283 for (int t = 0; t < depth; t++)
4285 matrix[line][t] = ' ';
4288 // For Aligning, we need to work out exactly how deep this thing is, and produce
4289 // a 'Spacer' String to compensate.
4292 memset(spacer,' ',40);
4293 if ((40 - Current->GetName().length() - depth) > 1) {
4294 spacer[40 - Current->GetName().length() - depth] = '\0';
4303 if (ServerInstance->clientlist.size() == 0) {
4304 // If there are no users, WHO THE HELL DID THE /MAP?!?!?!
4309 percent = ((float)Current->GetUserCount() / (float)ServerInstance->clientlist.size()) * 100;
4311 snprintf(text, 80, "%s %s%5d [%5.2f%%]", Current->GetName().c_str(), spacer, Current->GetUserCount(), percent);
4312 totusers += Current->GetUserCount();
4314 strlcpy(&matrix[line][depth],text,80);
4316 for (unsigned int q = 0; q < Current->ChildCount(); q++)
4318 if ((Utils->HideULines) && (ServerInstance->ULine(Current->GetChild(q)->GetName().c_str())))
4322 ShowMap(Current->GetChild(q),user,(Utils->FlatLinks && (!*user->oper)) ? depth : depth+2,matrix,totusers,totservers);
4327 ShowMap(Current->GetChild(q),user,(Utils->FlatLinks && (!*user->oper)) ? depth : depth+2,matrix,totusers,totservers);
4333 int HandleMotd(const char** parameters, int pcnt, userrec* user)
4337 /* Remote MOTD, the server is within the 1st parameter */
4338 std::deque<std::string> params;
4339 params.push_back(parameters[0]);
4341 /* Send it out remotely, generate no reply yet */
4342 TreeServer* s = Utils->FindServerMask(parameters[0]);
4345 Utils->DoOneToOne(user->nick, "MOTD", params, s->GetName());
4349 user->WriteServ( "402 %s %s :No such server", user->nick, parameters[0]);
4356 int HandleAdmin(const char** parameters, int pcnt, userrec* user)
4360 /* Remote ADMIN, the server is within the 1st parameter */
4361 std::deque<std::string> params;
4362 params.push_back(parameters[0]);
4364 /* Send it out remotely, generate no reply yet */
4365 TreeServer* s = Utils->FindServerMask(parameters[0]);
4368 Utils->DoOneToOne(user->nick, "ADMIN", params, s->GetName());
4372 user->WriteServ( "402 %s %s :No such server", user->nick, parameters[0]);
4379 int HandleStats(const char** parameters, int pcnt, userrec* user)
4383 /* Remote STATS, the server is within the 2nd parameter */
4384 std::deque<std::string> params;
4385 params.push_back(parameters[0]);
4386 params.push_back(parameters[1]);
4387 /* Send it out remotely, generate no reply yet */
4388 TreeServer* s = Utils->FindServerMask(parameters[1]);
4391 params[1] = s->GetName();
4392 Utils->DoOneToOne(user->nick, "STATS", params, s->GetName());
4396 user->WriteServ( "402 %s %s :No such server", user->nick, parameters[0]);
4403 // Ok, prepare to be confused.
4404 // After much mulling over how to approach this, it struck me that
4405 // the 'usual' way of doing a /MAP isnt the best way. Instead of
4406 // keeping track of a ton of ascii characters, and line by line
4407 // under recursion working out where to place them using multiplications
4408 // and divisons, we instead render the map onto a backplane of characters
4409 // (a character matrix), then draw the branches as a series of "L" shapes
4410 // from the nodes. This is not only friendlier on CPU it uses less stack.
4412 void HandleMap(const char** parameters, int pcnt, userrec* user)
4414 // This array represents a virtual screen which we will
4415 // "scratch" draw to, as the console device of an irc
4416 // client does not provide for a proper terminal.
4418 float totservers = 0;
4419 char matrix[128][80];
4420 for (unsigned int t = 0; t < 128; t++)
4422 matrix[t][0] = '\0';
4425 // The only recursive bit is called here.
4426 ShowMap(Utils->TreeRoot,user,0,matrix,totusers,totservers);
4427 // Process each line one by one. The algorithm has a limit of
4428 // 128 servers (which is far more than a spanning tree should have
4429 // anyway, so we're ok). This limit can be raised simply by making
4430 // the character matrix deeper, 128 rows taking 10k of memory.
4431 for (int l = 1; l < line; l++)
4433 // scan across the line looking for the start of the
4434 // servername (the recursive part of the algorithm has placed
4435 // the servers at indented positions depending on what they
4437 int first_nonspace = 0;
4438 while (matrix[l][first_nonspace] == ' ')
4443 // Draw the `- (corner) section: this may be overwritten by
4444 // another L shape passing along the same vertical pane, becoming
4445 // a |- (branch) section instead.
4446 matrix[l][first_nonspace] = '-';
4447 matrix[l][first_nonspace-1] = '`';
4449 // Draw upwards until we hit the parent server, causing possibly
4450 // other corners (`-) to become branches (|-)
4451 while ((matrix[l2][first_nonspace-1] == ' ') || (matrix[l2][first_nonspace-1] == '`'))
4453 matrix[l2][first_nonspace-1] = '|';
4457 // dump the whole lot to the user. This is the easy bit, honest.
4458 for (int t = 0; t < line; t++)
4460 user->WriteServ("006 %s :%s",user->nick,&matrix[t][0]);
4462 float avg_users = totusers / totservers;
4463 user->WriteServ("270 %s :%.0f server%s and %.0f user%s, average %.2f users per server",user->nick,totservers,(totservers > 1 ? "s" : ""),totusers,(totusers > 1 ? "s" : ""),avg_users);
4464 user->WriteServ("007 %s :End of /MAP",user->nick);
4468 int HandleSquit(const char** parameters, int pcnt, userrec* user)
4470 TreeServer* s = Utils->FindServerMask(parameters[0]);
4473 if (s == Utils->TreeRoot)
4475 user->WriteServ("NOTICE %s :*** SQUIT: Foolish mortal, you cannot make a server SQUIT itself! (%s matches local server name)",user->nick,parameters[0]);
4478 TreeSocket* sock = s->GetSocket();
4481 ServerInstance->Log(DEBUG,"Splitting server %s",s->GetName().c_str());
4482 ServerInstance->SNO->WriteToSnoMask('l',"SQUIT: Server \002%s\002 removed from network by %s",parameters[0],user->nick);
4483 sock->Squit(s,std::string("Server quit by ") + user->GetFullRealHost());
4484 ServerInstance->SE->DelFd(sock);
4491 std::deque<std::string> params;
4492 params.push_back(parameters[0]);
4493 params.push_back(std::string(":Server quit by ") + user->GetFullRealHost());
4494 Utils->DoOneToOne(user->nick, "RSQUIT", params, parameters[0]);
4499 user->WriteServ("NOTICE %s :*** SQUIT: The server \002%s\002 does not exist on the network.",user->nick,parameters[0]);
4504 int HandleTime(const char** parameters, int pcnt, userrec* user)
4506 if ((IS_LOCAL(user)) && (pcnt))
4508 TreeServer* found = Utils->FindServerMask(parameters[0]);
4511 // we dont' override for local server
4512 if (found == Utils->TreeRoot)
4515 std::deque<std::string> params;
4516 params.push_back(found->GetName());
4517 params.push_back(user->nick);
4518 Utils->DoOneToOne(ServerInstance->Config->ServerName,"TIME",params,found->GetName());
4522 user->WriteServ("402 %s %s :No such server",user->nick,parameters[0]);
4528 int HandleRemoteWhois(const char** parameters, int pcnt, userrec* user)
4530 if ((IS_LOCAL(user)) && (pcnt > 1))
4532 userrec* remote = ServerInstance->FindNick(parameters[1]);
4533 if ((remote) && (remote->GetFd() < 0))
4535 std::deque<std::string> params;
4536 params.push_back(parameters[1]);
4537 Utils->DoOneToOne(user->nick,"IDLE",params,remote->server);
4542 user->WriteServ("401 %s %s :No such nick/channel",user->nick, parameters[1]);
4543 user->WriteServ("318 %s %s :End of /WHOIS list.",user->nick, parameters[1]);
4550 void DoPingChecks(time_t curtime)
4552 for (unsigned int j = 0; j < Utils->TreeRoot->ChildCount(); j++)
4554 TreeServer* serv = Utils->TreeRoot->GetChild(j);
4555 TreeSocket* sock = serv->GetSocket();
4558 if (curtime >= serv->NextPingTime())
4560 if (serv->AnsweredLastPing())
4562 sock->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" PING "+serv->GetName());
4563 serv->SetNextPingTime(curtime + 60);
4567 // they didnt answer, boot them
4568 ServerInstance->SNO->WriteToSnoMask('l',"Server \002%s\002 pinged out",serv->GetName().c_str());
4569 sock->Squit(serv,"Ping timeout");
4570 ServerInstance->SE->DelFd(sock);
4580 void ConnectServer(Link* x)
4584 /* Do we already have an IP? If so, no need to resolve it. */
4585 if (insp_aton(x->IPAddr.c_str(), &binip) > 0)
4587 TreeSocket* newsocket = new TreeSocket(Utils, ServerInstance, x->IPAddr,x->Port,false,x->Timeout ? x->Timeout : 10,x->Name.c_str());
4588 if (newsocket->GetFd() > -1)
4590 /* Handled automatically on success */
4594 ServerInstance->SNO->WriteToSnoMask('l',"CONNECT: Error connecting \002%s\002: %s.",x->Name.c_str(),strerror(errno));
4596 Utils->DoFailOver(x);
4603 ServernameResolver* snr = new ServernameResolver((Module*)this, Utils, ServerInstance,x->IPAddr, *x);
4604 ServerInstance->AddResolver(snr);
4606 catch (ModuleException& e)
4608 ServerInstance->Log(DEBUG,"Error in resolver: %s",e.GetReason());
4609 Utils->DoFailOver(x);
4614 void AutoConnectServers(time_t curtime)
4616 for (std::vector<Link>::iterator x = Utils->LinkBlocks.begin(); x < Utils->LinkBlocks.end(); x++)
4618 if ((x->AutoConnect) && (curtime >= x->NextConnectTime))
4620 ServerInstance->Log(DEBUG,"Auto-Connecting %s",x->Name.c_str());
4621 x->NextConnectTime = curtime + x->AutoConnect;
4622 TreeServer* CheckDupe = Utils->FindServer(x->Name.c_str());
4623 if (x->FailOver.length())
4625 TreeServer* CheckFailOver = Utils->FindServer(x->FailOver.c_str());
4628 /* The failover for this server is currently a member of the network.
4629 * The failover probably succeeded, where the main link did not.
4630 * Don't try the main link until the failover is gone again.
4637 // an autoconnected server is not connected. Check if its time to connect it
4638 ServerInstance->SNO->WriteToSnoMask('l',"AUTOCONNECT: Auto-connecting server \002%s\002 (%lu seconds until next attempt)",x->Name.c_str(),x->AutoConnect);
4639 this->ConnectServer(&(*x));
4645 int HandleVersion(const char** parameters, int pcnt, userrec* user)
4647 // we've already checked if pcnt > 0, so this is safe
4648 TreeServer* found = Utils->FindServerMask(parameters[0]);
4651 std::string Version = found->GetVersion();
4652 user->WriteServ("351 %s :%s",user->nick,Version.c_str());
4653 if (found == Utils->TreeRoot)
4655 std::stringstream out(ServerInstance->Config->data005);
4656 std::string token = "";
4657 std::string line5 = "";
4658 int token_counter = 0;
4663 line5 = line5 + token + " ";
4666 if ((token_counter >= 13) || (out.eof() == true))
4668 user->WriteServ("005 %s %s:are supported by this server",user->nick,line5.c_str());
4677 user->WriteServ("402 %s %s :No such server",user->nick,parameters[0]);
4682 int HandleConnect(const char** parameters, int pcnt, userrec* user)
4684 for (std::vector<Link>::iterator x = Utils->LinkBlocks.begin(); x < Utils->LinkBlocks.end(); x++)
4686 if (ServerInstance->MatchText(x->Name.c_str(),parameters[0]))
4688 TreeServer* CheckDupe = Utils->FindServer(x->Name.c_str());
4691 user->WriteServ("NOTICE %s :*** CONNECT: Connecting to server: \002%s\002 (%s:%d)",user->nick,x->Name.c_str(),(x->HiddenFromStats ? "<hidden>" : x->IPAddr.c_str()),x->Port);
4692 ConnectServer(&(*x));
4697 user->WriteServ("NOTICE %s :*** CONNECT: Server \002%s\002 already exists on the network and is connected via \002%s\002",user->nick,x->Name.c_str(),CheckDupe->GetParent()->GetName().c_str());
4702 user->WriteServ("NOTICE %s :*** CONNECT: No server matching \002%s\002 could be found in the config file.",user->nick,parameters[0]);
4706 void BroadcastTimeSync()
4708 std::deque<std::string> params;
4709 params.push_back(ConvToStr(ServerInstance->Time(true)));
4710 Utils->DoOneToMany(Utils->TreeRoot->GetName(), "TIMESET", params);
4713 virtual int OnStats(char statschar, userrec* user, string_list &results)
4715 if ((statschar == 'c') || (statschar == 'n'))
4717 for (unsigned int i = 0; i < Utils->LinkBlocks.size(); i++)
4719 results.push_back(std::string(ServerInstance->Config->ServerName)+" 213 "+user->nick+" "+statschar+" *@"+(Utils->LinkBlocks[i].HiddenFromStats ? "<hidden>" : Utils->LinkBlocks[i].IPAddr)+" * "+Utils->LinkBlocks[i].Name.c_str()+" "+ConvToStr(Utils->LinkBlocks[i].Port)+" "+(Utils->LinkBlocks[i].EncryptionKey != "" ? 'e' : '-')+(Utils->LinkBlocks[i].AutoConnect ? 'a' : '-')+'s');
4720 if (statschar == 'c')
4721 results.push_back(std::string(ServerInstance->Config->ServerName)+" 244 "+user->nick+" H * * "+Utils->LinkBlocks[i].Name.c_str());
4723 results.push_back(std::string(ServerInstance->Config->ServerName)+" 219 "+user->nick+" "+statschar+" :End of /STATS report");
4724 ServerInstance->SNO->WriteToSnoMask('t',"Notice: %s '%c' requested by %s (%s@%s)",(!strcmp(user->server,ServerInstance->Config->ServerName) ? "Stats" : "Remote stats"),statschar,user->nick,user->ident,user->host);
4730 virtual int OnPreCommand(const std::string &command, const char** parameters, int pcnt, userrec *user, bool validated, const std::string &original_line)
4732 /* If the command doesnt appear to be valid, we dont want to mess with it. */
4736 if (command == "CONNECT")
4738 return this->HandleConnect(parameters,pcnt,user);
4740 else if (command == "STATS")
4742 return this->HandleStats(parameters,pcnt,user);
4744 else if (command == "MOTD")
4746 return this->HandleMotd(parameters,pcnt,user);
4748 else if (command == "ADMIN")
4750 return this->HandleAdmin(parameters,pcnt,user);
4752 else if (command == "SQUIT")
4754 return this->HandleSquit(parameters,pcnt,user);
4756 else if (command == "MAP")
4758 this->HandleMap(parameters,pcnt,user);
4761 else if ((command == "TIME") && (pcnt > 0))
4763 return this->HandleTime(parameters,pcnt,user);
4765 else if (command == "LUSERS")
4767 this->HandleLusers(parameters,pcnt,user);
4770 else if (command == "LINKS")
4772 this->HandleLinks(parameters,pcnt,user);
4775 else if (command == "WHOIS")
4780 return this->HandleRemoteWhois(parameters,pcnt,user);
4783 else if ((command == "VERSION") && (pcnt > 0))
4785 this->HandleVersion(parameters,pcnt,user);
4792 virtual void OnPostCommand(const std::string &command, const char** parameters, int pcnt, userrec *user, CmdResult result, const std::string &original_line)
4794 if ((result == CMD_SUCCESS) && (ServerInstance->IsValidModuleCommand(command, pcnt, user)))
4796 // this bit of code cleverly routes all module commands
4797 // to all remote severs *automatically* so that modules
4798 // can just handle commands locally, without having
4799 // to have any special provision in place for remote
4800 // commands and linking protocols.
4801 std::deque<std::string> params;
4803 for (int j = 0; j < pcnt; j++)
4805 if (strchr(parameters[j],' '))
4807 params.push_back(":" + std::string(parameters[j]));
4811 params.push_back(std::string(parameters[j]));
4814 ServerInstance->Log(DEBUG,"Globally route '%s'",command.c_str());
4815 Utils->DoOneToMany(user->nick,command,params);
4819 virtual void OnGetServerDescription(const std::string &servername,std::string &description)
4821 TreeServer* s = Utils->FindServer(servername);
4824 description = s->GetDesc();
4828 virtual void OnUserInvite(userrec* source,userrec* dest,chanrec* channel)
4830 if (IS_LOCAL(source))
4832 std::deque<std::string> params;
4833 params.push_back(dest->nick);
4834 params.push_back(channel->name);
4835 Utils->DoOneToMany(source->nick,"INVITE",params);
4839 virtual void OnPostLocalTopicChange(userrec* user, chanrec* chan, const std::string &topic)
4841 std::deque<std::string> params;
4842 params.push_back(chan->name);
4843 params.push_back(":"+topic);
4844 Utils->DoOneToMany(user->nick,"TOPIC",params);
4847 virtual void OnWallops(userrec* user, const std::string &text)
4851 std::deque<std::string> params;
4852 params.push_back(":"+text);
4853 Utils->DoOneToMany(user->nick,"WALLOPS",params);
4857 virtual void OnUserNotice(userrec* user, void* dest, int target_type, const std::string &text, char status, const CUList &exempt_list)
4859 if (target_type == TYPE_USER)
4861 userrec* d = (userrec*)dest;
4862 if ((d->GetFd() < 0) && (IS_LOCAL(user)))
4864 std::deque<std::string> params;
4866 params.push_back(d->nick);
4867 params.push_back(":"+text);
4868 Utils->DoOneToOne(user->nick,"NOTICE",params,d->server);
4871 else if (target_type == TYPE_CHANNEL)
4875 chanrec *c = (chanrec*)dest;
4878 std::string cname = c->name;
4880 cname = status + cname;
4881 TreeServerList list;
4882 Utils->GetListOfServersForChannel(c,list,status,exempt_list);
4884 for (TreeServerList::iterator i = list.begin(); i != list.end(); i++)
4886 TreeSocket* Sock = i->second->GetSocket();
4888 Sock->WriteLine(":"+std::string(user->nick)+" NOTICE "+cname+" :"+text);
4893 else if (target_type == TYPE_SERVER)
4897 char* target = (char*)dest;
4898 std::deque<std::string> par;
4899 par.push_back(target);
4900 par.push_back(":"+text);
4901 Utils->DoOneToMany(user->nick,"NOTICE",par);
4906 virtual void OnUserMessage(userrec* user, void* dest, int target_type, const std::string &text, char status, const CUList &exempt_list)
4908 if (target_type == TYPE_USER)
4910 // route private messages which are targetted at clients only to the server
4911 // which needs to receive them
4912 userrec* d = (userrec*)dest;
4913 if ((d->GetFd() < 0) && (IS_LOCAL(user)))
4915 std::deque<std::string> params;
4917 params.push_back(d->nick);
4918 params.push_back(":"+text);
4919 Utils->DoOneToOne(user->nick,"PRIVMSG",params,d->server);
4922 else if (target_type == TYPE_CHANNEL)
4926 chanrec *c = (chanrec*)dest;
4929 std::string cname = c->name;
4931 cname = status + cname;
4932 TreeServerList list;
4933 Utils->GetListOfServersForChannel(c,list,status,exempt_list);
4935 for (TreeServerList::iterator i = list.begin(); i != list.end(); i++)
4937 TreeSocket* Sock = i->second->GetSocket();
4939 Sock->WriteLine(":"+std::string(user->nick)+" PRIVMSG "+cname+" :"+text);
4944 else if (target_type == TYPE_SERVER)
4948 char* target = (char*)dest;
4949 std::deque<std::string> par;
4950 par.push_back(target);
4951 par.push_back(":"+text);
4952 Utils->DoOneToMany(user->nick,"PRIVMSG",par);
4957 virtual void OnBackgroundTimer(time_t curtime)
4959 AutoConnectServers(curtime);
4960 DoPingChecks(curtime);
4963 virtual void OnUserJoin(userrec* user, chanrec* channel)
4965 // Only do this for local users
4968 std::deque<std::string> params;
4970 params.push_back(channel->name);
4971 // set up their permissions and the channel TS with FJOIN.
4972 // All users are FJOINed now, because a module may specify
4973 // new joining permissions for the user.
4975 params.push_back(channel->name);
4976 params.push_back(ConvToStr(channel->age));
4977 params.push_back(std::string(channel->GetAllPrefixChars(user))+","+std::string(user->nick));
4978 Utils->DoOneToMany(ServerInstance->Config->ServerName,"FJOIN",params);
4979 if (channel->GetUserCounter() == 1)
4981 /* First user in, sync the modes for the channel */
4983 /* This is safe, all inspircd servers default to +nt */
4984 params.push_back("+nt");
4985 Utils->DoOneToMany(ServerInstance->Config->ServerName,"FMODE",params);
4990 virtual void OnChangeHost(userrec* user, const std::string &newhost)
4992 // only occurs for local clients
4993 if (user->registered != REG_ALL)
4995 std::deque<std::string> params;
4996 params.push_back(newhost);
4997 Utils->DoOneToMany(user->nick,"FHOST",params);
5000 virtual void OnChangeName(userrec* user, const std::string &gecos)
5002 // only occurs for local clients
5003 if (user->registered != REG_ALL)
5005 std::deque<std::string> params;
5006 params.push_back(gecos);
5007 Utils->DoOneToMany(user->nick,"FNAME",params);
5010 virtual void OnUserPart(userrec* user, chanrec* channel, const std::string &partmessage)
5014 std::deque<std::string> params;
5015 params.push_back(channel->name);
5016 if (partmessage != "")
5017 params.push_back(":"+partmessage);
5018 Utils->DoOneToMany(user->nick,"PART",params);
5022 virtual void OnUserConnect(userrec* user)
5024 char agestr[MAXBUF];
5027 std::deque<std::string> params;
5028 snprintf(agestr,MAXBUF,"%lu",(unsigned long)user->age);
5029 params.push_back(agestr);
5030 params.push_back(user->nick);
5031 params.push_back(user->host);
5032 params.push_back(user->dhost);
5033 params.push_back(user->ident);
5034 params.push_back("+"+std::string(user->FormatModes()));
5035 params.push_back(user->GetIPString());
5036 params.push_back(":"+std::string(user->fullname));
5037 Utils->DoOneToMany(ServerInstance->Config->ServerName,"NICK",params);
5039 // User is Local, change needs to be reflected!
5040 TreeServer* SourceServer = Utils->FindServer(user->server);
5043 SourceServer->AddUserCount();
5049 virtual void OnUserQuit(userrec* user, const std::string &reason)
5051 if ((IS_LOCAL(user)) && (user->registered == REG_ALL))
5053 std::deque<std::string> params;
5054 params.push_back(":"+reason);
5055 Utils->DoOneToMany(user->nick,"QUIT",params);
5057 // Regardless, We need to modify the user Counts..
5058 TreeServer* SourceServer = Utils->FindServer(user->server);
5061 SourceServer->DelUserCount();
5066 virtual void OnUserPostNick(userrec* user, const std::string &oldnick)
5070 std::deque<std::string> params;
5071 params.push_back(user->nick);
5072 Utils->DoOneToMany(oldnick,"NICK",params);
5076 virtual void OnUserKick(userrec* source, userrec* user, chanrec* chan, const std::string &reason)
5078 if ((source) && (IS_LOCAL(source)))
5080 std::deque<std::string> params;
5081 params.push_back(chan->name);
5082 params.push_back(user->nick);
5083 params.push_back(":"+reason);
5084 Utils->DoOneToMany(source->nick,"KICK",params);
5088 std::deque<std::string> params;
5089 params.push_back(chan->name);
5090 params.push_back(user->nick);
5091 params.push_back(":"+reason);
5092 Utils->DoOneToMany(ServerInstance->Config->ServerName,"KICK",params);
5096 virtual void OnRemoteKill(userrec* source, userrec* dest, const std::string &reason)
5098 std::deque<std::string> params;
5099 params.push_back(dest->nick);
5100 params.push_back(":"+reason);
5101 Utils->DoOneToMany(source->nick,"KILL",params);
5104 virtual void OnRehash(const std::string ¶meter)
5106 if (parameter != "")
5108 std::deque<std::string> params;
5109 params.push_back(parameter);
5110 Utils->DoOneToMany(ServerInstance->Config->ServerName,"REHASH",params);
5112 if (ServerInstance->MatchText(ServerInstance->Config->ServerName,parameter))
5114 ServerInstance->WriteOpers("*** Remote rehash initiated from server \002%s\002",ServerInstance->Config->ServerName);
5115 ServerInstance->RehashServer();
5118 Utils->ReadConfiguration(false);
5121 // note: the protocol does not allow direct umode +o except
5122 // via NICK with 8 params. sending OPERTYPE infers +o modechange
5124 virtual void OnOper(userrec* user, const std::string &opertype)
5128 std::deque<std::string> params;
5129 params.push_back(opertype);
5130 Utils->DoOneToMany(user->nick,"OPERTYPE",params);
5134 void OnLine(userrec* source, const std::string &host, bool adding, char linetype, long duration, const std::string &reason)
5138 /* Server-set lines */
5140 snprintf(data,MAXBUF,"%c %s %s %lu %lu :%s", linetype, host.c_str(), ServerInstance->Config->ServerName, (unsigned long)ServerInstance->Time(false),
5141 (unsigned long)duration, reason.c_str());
5142 std::deque<std::string> params;
5143 params.push_back(data);
5144 Utils->DoOneToMany(ServerInstance->Config->ServerName, "ADDLINE", params);
5148 if (IS_LOCAL(source))
5151 snprintf(type,8,"%cLINE",linetype);
5152 std::string stype = type;
5155 char sduration[MAXBUF];
5156 snprintf(sduration,MAXBUF,"%ld",duration);
5157 std::deque<std::string> params;
5158 params.push_back(host);
5159 params.push_back(sduration);
5160 params.push_back(":"+reason);
5161 Utils->DoOneToMany(source->nick,stype,params);
5165 std::deque<std::string> params;
5166 params.push_back(host);
5167 Utils->DoOneToMany(source->nick,stype,params);
5173 virtual void OnAddGLine(long duration, userrec* source, const std::string &reason, const std::string &hostmask)
5175 OnLine(source,hostmask,true,'G',duration,reason);
5178 virtual void OnAddZLine(long duration, userrec* source, const std::string &reason, const std::string &ipmask)
5180 OnLine(source,ipmask,true,'Z',duration,reason);
5183 virtual void OnAddQLine(long duration, userrec* source, const std::string &reason, const std::string &nickmask)
5185 OnLine(source,nickmask,true,'Q',duration,reason);
5188 virtual void OnAddELine(long duration, userrec* source, const std::string &reason, const std::string &hostmask)
5190 OnLine(source,hostmask,true,'E',duration,reason);
5193 virtual void OnDelGLine(userrec* source, const std::string &hostmask)
5195 OnLine(source,hostmask,false,'G',0,"");
5198 virtual void OnDelZLine(userrec* source, const std::string &ipmask)
5200 OnLine(source,ipmask,false,'Z',0,"");
5203 virtual void OnDelQLine(userrec* source, const std::string &nickmask)
5205 OnLine(source,nickmask,false,'Q',0,"");
5208 virtual void OnDelELine(userrec* source, const std::string &hostmask)
5210 OnLine(source,hostmask,false,'E',0,"");
5213 virtual void OnMode(userrec* user, void* dest, int target_type, const std::string &text)
5215 if ((IS_LOCAL(user)) && (user->registered == REG_ALL))
5217 if (target_type == TYPE_USER)
5219 userrec* u = (userrec*)dest;
5220 std::deque<std::string> params;
5221 params.push_back(u->nick);
5222 params.push_back(text);
5223 Utils->DoOneToMany(user->nick,"MODE",params);
5227 chanrec* c = (chanrec*)dest;
5228 std::deque<std::string> params;
5229 params.push_back(c->name);
5230 params.push_back(text);
5231 Utils->DoOneToMany(user->nick,"MODE",params);
5236 virtual void OnSetAway(userrec* user)
5240 std::deque<std::string> params;
5241 params.push_back(":"+std::string(user->awaymsg));
5242 Utils->DoOneToMany(user->nick,"AWAY",params);
5246 virtual void OnCancelAway(userrec* user)
5250 std::deque<std::string> params;
5252 Utils->DoOneToMany(user->nick,"AWAY",params);
5256 virtual void ProtoSendMode(void* opaque, int target_type, void* target, const std::string &modeline)
5258 TreeSocket* s = (TreeSocket*)opaque;
5261 if (target_type == TYPE_USER)
5263 userrec* u = (userrec*)target;
5264 s->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" FMODE "+u->nick+" "+ConvToStr(u->age)+" "+modeline);
5268 chanrec* c = (chanrec*)target;
5269 s->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" FMODE "+c->name+" "+ConvToStr(c->age)+" "+modeline);
5274 virtual void ProtoSendMetaData(void* opaque, int target_type, void* target, const std::string &extname, const std::string &extdata)
5276 TreeSocket* s = (TreeSocket*)opaque;
5279 if (target_type == TYPE_USER)
5281 userrec* u = (userrec*)target;
5282 s->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" METADATA "+u->nick+" "+extname+" :"+extdata);
5284 else if (target_type == TYPE_CHANNEL)
5286 chanrec* c = (chanrec*)target;
5287 s->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" METADATA "+c->name+" "+extname+" :"+extdata);
5290 if (target_type == TYPE_OTHER)
5292 s->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" METADATA * "+extname+" :"+extdata);
5296 virtual void OnEvent(Event* event)
5298 std::deque<std::string>* params = (std::deque<std::string>*)event->GetData();
5300 if (event->GetEventID() == "send_metadata")
5302 if (params->size() < 3)
5304 (*params)[2] = ":" + (*params)[2];
5305 Utils->DoOneToMany(ServerInstance->Config->ServerName,"METADATA",*params);
5307 else if (event->GetEventID() == "send_topic")
5309 if (params->size() < 2)
5311 (*params)[1] = ":" + (*params)[1];
5312 params->insert(params->begin() + 1,ServerInstance->Config->ServerName);
5313 params->insert(params->begin() + 1,ConvToStr(ServerInstance->Time(true)));
5314 Utils->DoOneToMany(ServerInstance->Config->ServerName,"FTOPIC",*params);
5316 else if (event->GetEventID() == "send_mode")
5318 if (params->size() < 2)
5320 // Insert the TS value of the object, either userrec or chanrec
5322 userrec* a = ServerInstance->FindNick((*params)[0]);
5329 chanrec* a = ServerInstance->FindChan((*params)[0]);
5335 params->insert(params->begin() + 1,ConvToStr(ourTS));
5336 Utils->DoOneToMany(ServerInstance->Config->ServerName,"FMODE",*params);
5338 else if (event->GetEventID() == "send_mode_explicit")
5340 if (params->size() < 2)
5342 Utils->DoOneToMany(ServerInstance->Config->ServerName,"MODE",*params);
5344 else if (event->GetEventID() == "send_opers")
5346 if (params->size() < 1)
5348 (*params)[0] = ":" + (*params)[0];
5349 Utils->DoOneToMany(ServerInstance->Config->ServerName,"OPERNOTICE",*params);
5351 else if (event->GetEventID() == "send_modeset")
5353 if (params->size() < 2)
5355 (*params)[1] = ":" + (*params)[1];
5356 Utils->DoOneToMany(ServerInstance->Config->ServerName,"MODENOTICE",*params);
5358 else if (event->GetEventID() == "send_snoset")
5360 if (params->size() < 2)
5362 (*params)[1] = ":" + (*params)[1];
5363 Utils->DoOneToMany(ServerInstance->Config->ServerName,"SNONOTICE",*params);
5365 else if (event->GetEventID() == "send_push")
5367 if (params->size() < 2)
5370 userrec *a = ServerInstance->FindNick((*params)[0]);
5375 (*params)[1] = ":" + (*params)[1];
5376 Utils->DoOneToOne(ServerInstance->Config->ServerName, "PUSH", *params, a->server);
5380 virtual ~ModuleSpanningTree()
5382 ServerInstance->Log(DEBUG,"Performing unload of spanningtree!");
5383 /* This will also free the listeners */
5386 ServerInstance->Timers->DelTimer(SyncTimer);
5389 virtual Version GetVersion()
5391 return Version(1,1,0,2,VF_VENDOR,API_VERSION);
5394 void Implements(char* List)
5396 List[I_OnPreCommand] = List[I_OnGetServerDescription] = List[I_OnUserInvite] = List[I_OnPostLocalTopicChange] = 1;
5397 List[I_OnWallops] = List[I_OnUserNotice] = List[I_OnUserMessage] = List[I_OnBackgroundTimer] = 1;
5398 List[I_OnUserJoin] = List[I_OnChangeHost] = List[I_OnChangeName] = List[I_OnUserPart] = List[I_OnUserConnect] = 1;
5399 List[I_OnUserQuit] = List[I_OnUserPostNick] = List[I_OnUserKick] = List[I_OnRemoteKill] = List[I_OnRehash] = 1;
5400 List[I_OnOper] = List[I_OnAddGLine] = List[I_OnAddZLine] = List[I_OnAddQLine] = List[I_OnAddELine] = 1;
5401 List[I_OnDelGLine] = List[I_OnDelZLine] = List[I_OnDelQLine] = List[I_OnDelELine] = List[I_ProtoSendMode] = List[I_OnMode] = 1;
5402 List[I_OnStats] = List[I_ProtoSendMetaData] = List[I_OnEvent] = List[I_OnSetAway] = List[I_OnCancelAway] = List[I_OnPostCommand] = 1;
5405 /* It is IMPORTANT that m_spanningtree is the last module in the chain
5406 * so that any activity it sees is FINAL, e.g. we arent going to send out
5407 * a NICK message before m_cloaking has finished putting the +x on the user,
5409 * Therefore, we return PRIORITY_LAST to make sure we end up at the END of
5410 * the module call queue.
5412 Priority Prioritize()
5414 return PRIORITY_LAST;
5418 TimeSyncTimer::TimeSyncTimer(InspIRCd *Inst, ModuleSpanningTree *Mod) : InspTimer(43200, Inst->Time()), Instance(Inst), Module(Mod)
5422 void TimeSyncTimer::Tick(time_t TIME)
5424 Module->BroadcastTimeSync();
5425 Module->SyncTimer = new TimeSyncTimer(Instance, Module);
5426 Instance->Timers->AddTimer(Module->SyncTimer);
5429 void SpanningTreeUtilities::DoFailOver(Link* x)
5431 if (x->FailOver.length())
5433 if (x->FailOver == x->Name)
5435 ServerInstance->SNO->WriteToSnoMask('l',"FAILOVER: Some muppet configured the failover for server \002%s\002 to point at itself. Not following it!", x->Name.c_str());
5438 Link* TryThisOne = this->FindLink(x->FailOver.c_str());
5441 ServerInstance->SNO->WriteToSnoMask('l',"FAILOVER: Trying failover link for \002%s\002: \002%s\002...", x->Name.c_str(), TryThisOne->Name.c_str());
5442 Creator->ConnectServer(TryThisOne);
5446 ServerInstance->SNO->WriteToSnoMask('l',"FAILOVER: Invalid failover server specified for server \002%s\002, will not follow!", x->Name.c_str());
5451 Link* SpanningTreeUtilities::FindLink(const std::string& name)
5453 for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
5455 if (ServerInstance->MatchText(x->Name.c_str(), name.c_str()))
5463 class ModuleSpanningTreeFactory : public ModuleFactory
5466 ModuleSpanningTreeFactory()
5470 ~ModuleSpanningTreeFactory()
5474 virtual Module * CreateModule(InspIRCd* Me)
5476 return new ModuleSpanningTree(Me);
5482 extern "C" void * init_module( void )
5484 return new ModuleSpanningTreeFactory;