/* +------------------------------------+ * | Inspire Internet Relay Chat Daemon | * +------------------------------------+ * * Inspire is copyright (C) 2002-2004 ChatSpike-Dev. * E-mail: * * * * Written by Craig Edwards, Craig McLure, and others. * This program is free but copyrighted software; see * the file COPYING for details. * * --------------------------------------------------- */ #include "inspircd.h" #include "inspircd_io.h" #include "inspircd_util.h" #include "inspircd_config.h" #include #include #include #include #include #include #include #include #ifdef GCC3 #include #else #include #endif #include #include #include #include #include #include #include #include #include "connection.h" #include "users.h" #include "servers.h" #include "ctables.h" #include "globals.h" #include "modules.h" #include "dynamic.h" #include "wildcard.h" #include "message.h" #include "mode.h" #include "xline.h" #include "inspstring.h" #include "dnsqueue.h" #ifdef GCC3 #define nspace __gnu_cxx #else #define nspace std #endif using namespace std; extern int MODCOUNT; extern std::vector modules; extern std::vector factory; extern int LogLevel; extern char ServerName[MAXBUF]; extern char Network[MAXBUF]; extern char ServerDesc[MAXBUF]; extern char AdminName[MAXBUF]; extern char AdminEmail[MAXBUF]; extern char AdminNick[MAXBUF]; extern char diepass[MAXBUF]; extern char restartpass[MAXBUF]; extern char motd[MAXBUF]; extern char rules[MAXBUF]; extern char list[MAXBUF]; extern char PrefixQuit[MAXBUF]; extern char DieValue[MAXBUF]; extern int debugging; extern int WHOWAS_STALE; extern int WHOWAS_MAX; extern int DieDelay; extern time_t startup_time; extern int NetBufferSize; extern int MaxWhoResults; extern time_t nb_start; extern bool nofork; extern time_t TIME; extern std::vector fd_reap; extern std::vector module_names; extern char MyExecutable[1024]; extern int boundPortCount; extern int portCount; extern int UDPportCount; extern int ports[MAXSOCKS]; extern int defaultRoute; extern std::vector auth_cookies; extern std::stringstream config_f; extern serverrec* me[32]; extern FILE *log_file; extern ClassVector Classes; const long duration_m = 60; const long duration_h = duration_m * 60; const long duration_d = duration_h * 24; const long duration_w = duration_d * 7; const long duration_y = duration_w * 52; namespace nspace { #ifdef GCC34 template<> struct hash #else template<> struct nspace::hash #endif { size_t operator()(const struct in_addr &a) const { size_t q; memcpy(&q,&a,sizeof(size_t)); return q; } }; #ifdef GCC34 template<> struct hash #else template<> struct nspace::hash #endif { size_t operator()(const string &s) const { char a[MAXBUF]; static struct hash strhash; strlcpy(a,s.c_str(),MAXBUF); strlower(a); return strhash(a); } }; } struct StrHashComp { bool operator()(const string& s1, const string& s2) const { char a[MAXBUF],b[MAXBUF]; strlcpy(a,s1.c_str(),MAXBUF); strlcpy(b,s2.c_str(),MAXBUF); return (strcasecmp(a,b) == 0); } }; struct InAddr_HashComp { bool operator()(const in_addr &s1, const in_addr &s2) const { size_t q; size_t p; memcpy(&q,&s1,sizeof(size_t)); memcpy(&p,&s2,sizeof(size_t)); return (q == p); } }; typedef nspace::hash_map, StrHashComp> user_hash; typedef nspace::hash_map, StrHashComp> chan_hash; typedef nspace::hash_map, InAddr_HashComp> address_cache; typedef std::deque command_table; extern user_hash clientlist; extern chan_hash chanlist; extern user_hash whowas; extern command_table cmdlist; extern file_cache MOTD; extern file_cache RULES; extern address_cache IP; void handle_join(char **parameters, int pcnt, userrec *user) { chanrec* Ptr; int i = 0; if (loop_call(handle_join,parameters,pcnt,user,0,0,1)) return; if (parameters[0][0] == '#') { Ptr = add_channel(user,parameters[0],parameters[1],false); } } void handle_part(char **parameters, int pcnt, userrec *user) { chanrec* Ptr; if (pcnt > 1) { if (loop_call(handle_part,parameters,pcnt,user,0,pcnt-2,0)) return; del_channel(user,parameters[0],parameters[1],false); } else { if (loop_call(handle_part,parameters,pcnt,user,0,pcnt-1,0)) return; del_channel(user,parameters[0],NULL,false); } } void handle_kick(char **parameters, int pcnt, userrec *user) { chanrec* Ptr = FindChan(parameters[0]); userrec* u = Find(parameters[1]); if ((!u) || (!Ptr)) { WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]); return; } if (!has_channel(user,Ptr)) { WriteServ(user->fd,"442 %s %s :You're not on that channel!",user->nick, parameters[0]); return; } char reason[MAXBUF]; if (pcnt > 2) { strlcpy(reason,parameters[2],MAXBUF); if (strlen(reason)>MAXKICK) { reason[MAXKICK-1] = '\0'; } kick_channel(user,u,Ptr,reason); } else { strlcpy(reason,user->nick,MAXBUF); kick_channel(user,u,Ptr,reason); } // this must be propogated so that channel membership is kept in step network-wide char buffer[MAXBUF]; snprintf(buffer,MAXBUF,"k %s %s %s :%s",user->nick,u->nick,Ptr->name,reason); NetSendToAll(buffer); } void handle_die(char **parameters, int pcnt, userrec *user) { log(DEBUG,"die: %s",user->nick); if (!strcmp(parameters[0],diepass)) { WriteOpers("*** DIE command from %s!%s@%s, terminating...",user->nick,user->ident,user->host); sleep(DieDelay); Exit(ERROR); } else { WriteOpers("*** Failed DIE Command from %s!%s@%s.",user->nick,user->ident,user->host); } } void handle_restart(char **parameters, int pcnt, userrec *user) { char restart[1024]; char *argv[32]; log(DEFAULT,"Restart: %s",user->nick); if (!strcmp(parameters[0],restartpass)) { WriteOpers("*** RESTART command from %s!%s@%s, restarting server.",user->nick,user->ident,user->host); argv[0] = MyExecutable; argv[1] = "-wait"; if (nofork) { argv[2] = "-nofork"; } else { argv[2] = NULL; } argv[3] = NULL; // close ALL file descriptors send_error("Server restarting."); sleep(1); for (int i = 0; i < 65536; i++) { int on = 0; struct linger linger = { 0 }; setsockopt(i, SOL_SOCKET, SO_REUSEADDR, (const char*)&on, sizeof(on)); linger.l_onoff = 1; linger.l_linger = 0; setsockopt(i, SOL_SOCKET, SO_LINGER, (const char*)&linger,sizeof(linger)); Blocking(i); close(i); } sleep(5); execv(MyExecutable,argv); exit(0); } else { WriteOpers("*** Failed RESTART Command from %s!%s@%s.",user->nick,user->ident,user->host); } } void handle_kill(char **parameters, int pcnt, userrec *user) { userrec *u = Find(parameters[0]); char killreason[MAXBUF]; log(DEBUG,"kill: %s %s",parameters[0],parameters[1]); if (u) { int MOD_RESULT = 0; FOREACH_RESULT(OnKill(user,u,parameters[1])); if (MOD_RESULT) { return; } if (strcmp(ServerName,u->server)) { // remote kill WriteOpers("*** Remote kill by %s: %s!%s@%s (%s)",user->nick,u->nick,u->ident,u->host,parameters[1]); snprintf(killreason,MAXBUF,"[%s] Killed (%s (%s))",ServerName,user->nick,parameters[1]); WriteCommonExcept(u,"QUIT :%s",killreason); // K token must go to ALL servers!!! char buffer[MAXBUF]; snprintf(buffer,MAXBUF,"K %s %s :%s",user->nick,u->nick,killreason); NetSendToAll(buffer); user_hash::iterator iter = clientlist.find(u->nick); if (iter != clientlist.end()) { log(DEBUG,"deleting user hash value %d",iter->second); if ((iter->second) && (user->registered == 7)) { delete iter->second; } clientlist.erase(iter); } purge_empty_chans(); } else { // local kill WriteTo(user, u, "KILL %s :%s!%s!%s (%s)", u->nick, ServerName,user->dhost,user->nick,parameters[1]); WriteOpers("*** Local Kill by %s: %s!%s@%s (%s)",user->nick,u->nick,u->ident,u->host,parameters[1]); snprintf(killreason,MAXBUF,"Killed (%s (%s))",user->nick,parameters[1]); kill_link(u,killreason); } } else { WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]); } } void handle_summon(char **parameters, int pcnt, userrec *user) { WriteServ(user->fd,"445 %s :SUMMON has been disabled (depreciated command)",user->nick); } void handle_users(char **parameters, int pcnt, userrec *user) { WriteServ(user->fd,"445 %s :USERS has been disabled (depreciated command)",user->nick); } void handle_pass(char **parameters, int pcnt, userrec *user) { // Check to make sure they havnt registered -- Fix by FCS if (user->registered == 7) { WriteServ(user->fd,"462 %s :You may not reregister",user->nick); return; } if (!strcasecmp(parameters[0],Passwd(user))) { user->haspassed = true; } } void handle_invite(char **parameters, int pcnt, userrec *user) { userrec* u = Find(parameters[0]); chanrec* c = FindChan(parameters[1]); if ((!c) || (!u)) { if (!c) { WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, parameters[1]); } else { if (c->inviteonly) { WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, parameters[0]); } } return; } if (c->inviteonly) { if (cstatus(user,c) < STATUS_HOP) { WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, c->name); return; } } if (has_channel(u,c)) { WriteServ(user->fd,"443 %s %s %s :Is already on channel %s",user->nick,u->nick,c->name,c->name); return; } if (!has_channel(user,c)) { WriteServ(user->fd,"442 %s %s :You're not on that channel!",user->nick, c->name); return; } int MOD_RESULT = 0; FOREACH_RESULT(OnUserPreInvite(user,u,c)); if (MOD_RESULT == 1) { return; } u->InviteTo(c->name); WriteFrom(u->fd,user,"INVITE %s :%s",u->nick,c->name); WriteServ(user->fd,"341 %s %s %s",user->nick,u->nick,c->name); // i token must go to ALL servers!!! char buffer[MAXBUF]; snprintf(buffer,MAXBUF,"i %s %s %s",u->nick,user->nick,c->name); NetSendToAll(buffer); } void handle_topic(char **parameters, int pcnt, userrec *user) { chanrec* Ptr; if (pcnt == 1) { if (strlen(parameters[0]) <= CHANMAX) { Ptr = FindChan(parameters[0]); if (Ptr) { if (((Ptr) && (!has_channel(user,Ptr))) && (Ptr->secret)) { WriteServ(user->fd,"442 %s %s :You're not on that channel!",user->nick, Ptr->name); return; } if (Ptr->topicset) { WriteServ(user->fd,"332 %s %s :%s", user->nick, Ptr->name, Ptr->topic); WriteServ(user->fd,"333 %s %s %s %d", user->nick, Ptr->name, Ptr->setby, Ptr->topicset); } else { WriteServ(user->fd,"331 %s %s :No topic is set.", user->nick, Ptr->name); } } else { WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]); } } return; } else if (pcnt>1) { if (strlen(parameters[0]) <= CHANMAX) { Ptr = FindChan(parameters[0]); if (Ptr) { if ((Ptr) && (!has_channel(user,Ptr))) { WriteServ(user->fd,"442 %s %s :You're not on that channel!",user->nick, Ptr->name); return; } if ((Ptr->topiclock) && (cstatus(user,Ptr)fd,"482 %s %s :You must be at least a half-operator to change modes on this channel", user->nick, Ptr->name); return; } char topic[MAXBUF]; strlcpy(topic,parameters[1],MAXBUF); if (strlen(topic)>MAXTOPIC) { topic[MAXTOPIC-1] = '\0'; } strlcpy(Ptr->topic,topic,MAXBUF); strlcpy(Ptr->setby,user->nick,NICKMAX); Ptr->topicset = TIME; WriteChannel(Ptr,user,"TOPIC %s :%s",Ptr->name, Ptr->topic); // t token must go to ALL servers!!! char buffer[MAXBUF]; snprintf(buffer,MAXBUF,"t %s %s :%s",user->nick,Ptr->name,topic); NetSendToAll(buffer); } else { WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]); } } } } void handle_names(char **parameters, int pcnt, userrec *user) { chanrec* c; if (loop_call(handle_names,parameters,pcnt,user,0,pcnt-1,0)) return; c = FindChan(parameters[0]); if (c) { if (((c) && (!has_channel(user,c))) && (c->secret)) { WriteServ(user->fd,"442 %s %s :You're not on that channel!",user->nick, c->name); return; } userlist(user,c); WriteServ(user->fd,"366 %s %s :End of /NAMES list.", user->nick, c->name); } else { WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]); } } void handle_privmsg(char **parameters, int pcnt, userrec *user) { userrec *dest; chanrec *chan; user->idle_lastmsg = TIME; if (loop_call(handle_privmsg,parameters,pcnt,user,0,pcnt-2,0)) return; if (parameters[0][0] == '#') { chan = FindChan(parameters[0]); if (chan) { if ((chan->noexternal) && (!has_channel(user,chan))) { WriteServ(user->fd,"404 %s %s :Cannot send to channel (no external messages)", user->nick, chan->name); return; } if ((chan->moderated) && (cstatus(user,chan)fd,"404 %s %s :Cannot send to channel (+m)", user->nick, chan->name); return; } int MOD_RESULT = 0; std::string temp = parameters[1]; FOREACH_RESULT(OnUserPreMessage(user,chan,TYPE_CHANNEL,temp)); if (MOD_RESULT) { return; } parameters[1] = (char*)temp.c_str(); ChanExceptSender(chan, user, "PRIVMSG %s :%s", chan->name, parameters[1]); // if any users of this channel are on remote servers, broadcast the packet char buffer[MAXBUF]; snprintf(buffer,MAXBUF,"P %s %s :%s",user->nick,chan->name,parameters[1]); NetSendToCommon(user,buffer); } else { /* no such nick/channel */ WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]); } return; } dest = Find(parameters[0]); if (dest) { if (strcmp(dest->awaymsg,"")) { /* auto respond with aweh msg */ WriteServ(user->fd,"301 %s %s :%s",user->nick,dest->nick,dest->awaymsg); } int MOD_RESULT = 0; std::string temp = parameters[1]; FOREACH_RESULT(OnUserPreMessage(user,dest,TYPE_USER,temp)); if (MOD_RESULT) { return; } parameters[1] = (char*)temp.c_str(); if (!strcmp(dest->server,user->server)) { // direct write, same server WriteTo(user, dest, "PRIVMSG %s :%s", dest->nick, parameters[1]); } else { char buffer[MAXBUF]; snprintf(buffer,MAXBUF,"P %s %s :%s",user->nick,dest->nick,parameters[1]); NetSendToOne(dest->server,buffer); } } else { /* no such nick/channel */ WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]); } } void handle_notice(char **parameters, int pcnt, userrec *user) { userrec *dest; chanrec *chan; user->idle_lastmsg = TIME; if (loop_call(handle_notice,parameters,pcnt,user,0,pcnt-2,0)) return; if (parameters[0][0] == '#') { chan = FindChan(parameters[0]); if (chan) { if ((chan->noexternal) && (!has_channel(user,chan))) { WriteServ(user->fd,"404 %s %s :Cannot send to channel (no external messages)", user->nick, chan->name); return; } if ((chan->moderated) && (cstatus(user,chan)fd,"404 %s %s :Cannot send to channel (+m)", user->nick, chan->name); return; } int MOD_RESULT = 0; std::string temp = parameters[1]; FOREACH_RESULT(OnUserPreNotice(user,chan,TYPE_CHANNEL,temp)); if (MOD_RESULT) { return; } parameters[1] = (char*)temp.c_str(); ChanExceptSender(chan, user, "NOTICE %s :%s", chan->name, parameters[1]); // if any users of this channel are on remote servers, broadcast the packet char buffer[MAXBUF]; snprintf(buffer,MAXBUF,"V %s %s :%s",user->nick,chan->name,parameters[1]); NetSendToCommon(user,buffer); } else { /* no such nick/channel */ WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]); } return; } dest = Find(parameters[0]); if (dest) { int MOD_RESULT = 0; std::string temp = parameters[1]; FOREACH_RESULT(OnUserPreNotice(user,dest,TYPE_USER,temp)); if (MOD_RESULT) { return; } parameters[1] = (char*)temp.c_str(); if (!strcmp(dest->server,user->server)) { // direct write, same server WriteTo(user, dest, "NOTICE %s :%s", dest->nick, parameters[1]); } else { char buffer[MAXBUF]; snprintf(buffer,MAXBUF,"V %s %s :%s",user->nick,dest->nick,parameters[1]); NetSendToOne(dest->server,buffer); } } else { /* no such nick/channel */ WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]); } } void handle_server(char **parameters, int pcnt, userrec *user) { WriteServ(user->fd,"666 %s :You cannot identify as a server, you are a USER. IRC Operators informed.",user->nick); WriteOpers("*** WARNING: %s attempted to issue a SERVER command and is registered as a user!",user->nick); } void handle_info(char **parameters, int pcnt, userrec *user) { WriteServ(user->fd,"371 %s :The Inspire IRCd Project Has been brought to you by the following people..",user->nick); WriteServ(user->fd,"371 %s :Craig Edwards, Craig McLure, and Others..",user->nick); WriteServ(user->fd,"371 %s :Will finish this later when i can be arsed :p",user->nick); FOREACH_MOD OnInfo(user); WriteServ(user->fd,"374 %s :End of /INFO list",user->nick); } void handle_time(char **parameters, int pcnt, userrec *user) { time_t rawtime; struct tm * timeinfo; time ( &rawtime ); timeinfo = localtime ( &rawtime ); WriteServ(user->fd,"391 %s %s :%s",user->nick,ServerName, asctime (timeinfo) ); } void handle_whois(char **parameters, int pcnt, userrec *user) { userrec *dest; char *t; if (loop_call(handle_whois,parameters,pcnt,user,0,pcnt-1,0)) return; dest = Find(parameters[0]); if (dest) { // bug found by phidjit - were able to whois an incomplete connection if it had sent a NICK or USER if (dest->registered == 7) { WriteServ(user->fd,"311 %s %s %s %s * :%s",user->nick, dest->nick, dest->ident, dest->dhost, dest->fullname); if ((user == dest) || (strchr(user->modes,'o'))) { WriteServ(user->fd,"378 %s %s :is connecting from *@%s",user->nick, dest->nick, dest->host); } if (strcmp(chlist(dest),"")) { WriteServ(user->fd,"319 %s %s :%s",user->nick, dest->nick, chlist(dest)); } WriteServ(user->fd,"312 %s %s %s :%s",user->nick, dest->nick, dest->server, GetServerDescription(dest->server).c_str()); if (strcmp(dest->awaymsg,"")) { WriteServ(user->fd,"301 %s %s :%s",user->nick, dest->nick, dest->awaymsg); } if ((strchr(dest->modes,'o')) && (strcmp(dest->oper,""))) { WriteServ(user->fd,"313 %s %s :is %s %s on %s",user->nick, dest->nick, (strchr("aeiou",dest->oper[0]) ? "an" : "a"),dest->oper, Network); } FOREACH_MOD OnWhois(user,dest); if (!strcasecmp(user->server,dest->server)) { // idle time and signon line can only be sent if youre on the same server (according to RFC) WriteServ(user->fd,"317 %s %s %d %d :seconds idle, signon time",user->nick, dest->nick, abs((dest->idle_lastmsg)-TIME), dest->signon); } WriteServ(user->fd,"318 %s %s :End of /WHOIS list.",user->nick, dest->nick); } else { WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]); } } else { /* no such nick/channel */ WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]); } } void handle_quit(char **parameters, int pcnt, userrec *user) { user_hash::iterator iter = clientlist.find(user->nick); char* reason; if (user->registered == 7) { /* theres more to do here, but for now just close the socket */ if (pcnt == 1) { if (parameters[0][0] == ':') { *parameters[0]++; } reason = parameters[0]; if (strlen(reason)>MAXQUIT) { reason[MAXQUIT-1] = '\0'; } Write(user->fd,"ERROR :Closing link (%s@%s) [%s]",user->ident,user->host,parameters[0]); WriteOpers("*** Client exiting: %s!%s@%s [%s]",user->nick,user->ident,user->host,parameters[0]); WriteCommonExcept(user,"QUIT :%s%s",PrefixQuit,parameters[0]); char buffer[MAXBUF]; snprintf(buffer,MAXBUF,"Q %s :%s%s",user->nick,PrefixQuit,parameters[0]); NetSendToAll(buffer); } else { Write(user->fd,"ERROR :Closing link (%s@%s) [QUIT]",user->ident,user->host); WriteOpers("*** Client exiting: %s!%s@%s [Client exited]",user->nick,user->ident,user->host); WriteCommonExcept(user,"QUIT :Client exited"); char buffer[MAXBUF]; snprintf(buffer,MAXBUF,"Q %s :Client exited",user->nick); NetSendToAll(buffer); } FOREACH_MOD OnUserQuit(user); AddWhoWas(user); } /* push the socket on a stack of sockets due to be closed at the next opportunity */ fd_reap.push_back(user->fd); if (iter != clientlist.end()) { clientlist.erase(iter); log(DEBUG,"deleting user hash value %d",iter->second); //if ((user) && (user->registered == 7)) { //delete user; //} } if (user->registered == 7) { purge_empty_chans(); } } void handle_who(char **parameters, int pcnt, userrec *user) { chanrec* Ptr = NULL; char tmp[10]; /* theres more to do here, but for now just close the socket */ if (pcnt == 1) { if ((!strcmp(parameters[0],"0")) || (!strcmp(parameters[0],"*"))) { if (user->chans[0].channel) { int n_list = 0; for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++) { Ptr = i->second->chans[0].channel; // suggested by phidjit and FCS if ((!common_channels(user,i->second)) && (isnick(i->second->nick))) { // Bug Fix #29 strcpy(tmp, ""); if (strcmp(i->second->awaymsg, "")) { strncat(tmp, "G", 9); } else { strncat(tmp, "H", 9); } if (strchr(i->second->modes,'o')) { strncat(tmp, "*", 9); } WriteServ(user->fd,"352 %s %s %s %s %s %s %s :0 %s",user->nick, Ptr ? Ptr->name : "*", i->second->ident, i->second->dhost, i->second->server, i->second->nick, tmp, i->second->fullname); n_list++; if (n_list > MaxWhoResults) break; } } } if (Ptr) { WriteServ(user->fd,"315 %s %s :End of /WHO list.",user->nick , parameters[0]); } else { WriteServ(user->fd,"315 %s %s :End of /WHO list.",user->nick, parameters[0]); } return; } if (parameters[0][0] == '#') { Ptr = FindChan(parameters[0]); if (Ptr) { for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++) { if ((has_channel(i->second,Ptr)) && (isnick(i->second->nick))) { // Fix Bug #29 - Part 2.. strcpy(tmp, ""); if (strcmp(i->second->awaymsg, "")) { strncat(tmp, "G", 9); } else { strncat(tmp, "H", 9); } if (strchr(i->second->modes,'o')) { strncat(tmp, "*", 9); } strcat(tmp, cmode(i->second, Ptr)); WriteServ(user->fd,"352 %s %s %s %s %s %s %s :0 %s",user->nick, Ptr->name, i->second->ident, i->second->dhost, i->second->server, i->second->nick, tmp, i->second->fullname); } } WriteServ(user->fd,"315 %s %s :End of /WHO list.",user->nick, parameters[0]); } else { WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]); } } else { userrec* u = Find(parameters[0]); if (u) { // Bug Fix #29 -- Part 29.. strcpy(tmp, ""); if (strcmp(u->awaymsg, "")) { strncat(tmp, "G" ,9); } else { strncat(tmp, "H" ,9); } if (strchr(u->modes,'o')) { strncat(tmp, "*" ,9); } WriteServ(user->fd,"352 %s %s %s %s %s %s %s :0 %s",user->nick, u->nick, u->ident, u->dhost, u->server, u->nick, tmp, u->fullname); } WriteServ(user->fd,"315 %s %s :End of /WHO list.",user->nick, parameters[0]); } } if (pcnt == 2) { if ((!strcmp(parameters[0],"0")) || (!strcmp(parameters[0],"*")) && (!strcmp(parameters[1],"o"))) { for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++) { if ((common_channels(user,i->second)) && (isnick(i->second->nick))) { if (strchr(i->second->modes,'o')) { // If i were a rich man.. I wouldn't need to me making these bugfixes.. // But i'm a poor bastard with nothing better to do. strcpy(tmp, ""); if (strcmp(i->second->awaymsg, "")) { strncat(tmp, "G" ,9); } else { strncat(tmp, "H" ,9); } WriteServ(user->fd,"352 %s %s %s %s %s %s %s* :0 %s",user->nick, user->nick, i->second->ident, i->second->dhost, i->second->server, i->second->nick, tmp, i->second->fullname); } } } WriteServ(user->fd,"315 %s %s :End of /WHO list.",user->nick, parameters[0]); return; } } } void handle_wallops(char **parameters, int pcnt, userrec *user) { WriteWallOps(user,false,"%s",parameters[0]); } void handle_list(char **parameters, int pcnt, userrec *user) { chanrec* Ptr; WriteServ(user->fd,"321 %s Channel :Users Name",user->nick); for (chan_hash::const_iterator i = chanlist.begin(); i != chanlist.end(); i++) { if ((!i->second->c_private) && (!i->second->secret)) { WriteServ(user->fd,"322 %s %s %d :[+%s] %s",user->nick,i->second->name,usercount_i(i->second),chanmodes(i->second),i->second->topic); } } WriteServ(user->fd,"323 %s :End of channel list.",user->nick); } void handle_rehash(char **parameters, int pcnt, userrec *user) { WriteServ(user->fd,"382 %s %s :Rehashing",user->nick,CleanFilename(CONFIG_FILE)); ReadConfig(false,user); FOREACH_MOD OnRehash(); WriteOpers("%s is rehashing config file %s",user->nick,CleanFilename(CONFIG_FILE)); } void handle_lusers(char **parameters, int pcnt, userrec *user) { WriteServ(user->fd,"251 %s :There are %d users and %d invisible on %d servers",user->nick,usercnt()-usercount_invisible(),usercount_invisible(),servercount()); WriteServ(user->fd,"252 %s %d :operator(s) online",user->nick,usercount_opers()); WriteServ(user->fd,"253 %s %d :unknown connections",user->nick,usercount_unknown()); WriteServ(user->fd,"254 %s %d :channels formed",user->nick,chancount()); WriteServ(user->fd,"254 %s :I have %d clients and %d servers",user->nick,local_count(),count_servs()); } void handle_admin(char **parameters, int pcnt, userrec *user) { WriteServ(user->fd,"256 %s :Administrative info for %s",user->nick,ServerName); WriteServ(user->fd,"257 %s :Name - %s",user->nick,AdminName); WriteServ(user->fd,"258 %s :Nickname - %s",user->nick,AdminNick); WriteServ(user->fd,"258 %s :E-Mail - %s",user->nick,AdminEmail); } void handle_ping(char **parameters, int pcnt, userrec *user) { WriteServ(user->fd,"PONG %s :%s",ServerName,parameters[0]); } void handle_pong(char **parameters, int pcnt, userrec *user) { // set the user as alive so they survive to next ping user->lastping = 1; } void handle_motd(char **parameters, int pcnt, userrec *user) { ShowMOTD(user); } void handle_rules(char **parameters, int pcnt, userrec *user) { ShowRULES(user); } void handle_user(char **parameters, int pcnt, userrec *user) { if (user->registered < 3) { if (isident(parameters[0]) == 0) { // This kinda Sucks, According to the RFC thou, its either this, // or "You have already registered" :p -- Craig WriteServ(user->fd,"461 %s USER :Not enough parameters",user->nick); } else { WriteServ(user->fd,"NOTICE Auth :No ident response, ident prefixed with ~"); strcpy(user->ident,"~"); /* we arent checking ident... but these days why bother anyway? */ strlcat(user->ident,parameters[0],IDENTMAX); strlcpy(user->fullname,parameters[3],128); user->registered = (user->registered | 1); } } else { WriteServ(user->fd,"462 %s :You may not reregister",user->nick); return; } /* parameters 2 and 3 are local and remote hosts, ignored when sent by client connection */ if (user->registered == 3) { /* user is registered now, bit 0 = USER command, bit 1 = sent a NICK command */ ConnectUser(user); } } void handle_userhost(char **parameters, int pcnt, userrec *user) { char Return[MAXBUF],junk[MAXBUF]; snprintf(Return,MAXBUF,"302 %s :",user->nick); for (int i = 0; i < pcnt; i++) { userrec *u = Find(parameters[i]); if (u) { if (strchr(u->modes,'o')) { snprintf(junk,MAXBUF,"%s*=+%s@%s ",u->nick,u->ident,u->host); strlcat(Return,junk,MAXBUF); } else { snprintf(junk,MAXBUF,"%s=+%s@%s ",u->nick,u->ident,u->host); strlcat(Return,junk,MAXBUF); } } } WriteServ(user->fd,Return); } void handle_ison(char **parameters, int pcnt, userrec *user) { char Return[MAXBUF]; snprintf(Return,MAXBUF,"303 %s :",user->nick); for (int i = 0; i < pcnt; i++) { userrec *u = Find(parameters[i]); if (u) { strlcat(Return,u->nick,MAXBUF); strlcat(Return," ",MAXBUF); } } WriteServ(user->fd,Return); } void handle_away(char **parameters, int pcnt, userrec *user) { if (pcnt) { strlcpy(user->awaymsg,parameters[0],512); WriteServ(user->fd,"306 %s :You have been marked as being away",user->nick); } else { strlcpy(user->awaymsg,"",512); WriteServ(user->fd,"305 %s :You are no longer marked as being away",user->nick); } } void handle_whowas(char **parameters, int pcnt, userrec* user) { user_hash::iterator i = whowas.find(parameters[0]); if (i == whowas.end()) { WriteServ(user->fd,"406 %s %s :There was no such nickname",user->nick,parameters[0]); WriteServ(user->fd,"369 %s %s :End of WHOWAS",user->nick,parameters[0]); } else { time_t rawtime = i->second->signon; tm *timeinfo; char b[MAXBUF]; timeinfo = localtime(&rawtime); strlcpy(b,asctime(timeinfo),MAXBUF); b[strlen(b)-1] = '\0'; WriteServ(user->fd,"314 %s %s %s %s * :%s",user->nick,i->second->nick,i->second->ident,i->second->dhost,i->second->fullname); WriteServ(user->fd,"312 %s %s %s :%s",user->nick,i->second->nick,i->second->server,b); WriteServ(user->fd,"369 %s %s :End of WHOWAS",user->nick,parameters[0]); } } void handle_trace(char **parameters, int pcnt, userrec *user) { for (user_hash::iterator i = clientlist.begin(); i != clientlist.end(); i++) { if (i->second) { if (isnick(i->second->nick)) { if (strchr(i->second->modes,'o')) { WriteServ(user->fd,"205 %s :Oper 0 %s",user->nick,i->second->nick); } else { WriteServ(user->fd,"204 %s :User 0 %s",user->nick,i->second->nick); } } else { WriteServ(user->fd,"203 %s :???? 0 [%s]",user->nick,i->second->host); } } } } void handle_modules(char **parameters, int pcnt, userrec *user) { for (int i = 0; i < module_names.size(); i++) { Version V = modules[i]->GetVersion(); char modulename[MAXBUF]; strlcpy(modulename,module_names[i].c_str(),256); WriteServ(user->fd,"900 %s :0x%08lx %d.%d.%d.%d %s",user->nick,modules[i],V.Major,V.Minor,V.Revision,V.Build,CleanFilename(modulename)); } } void handle_stats(char **parameters, int pcnt, userrec *user) { char Link_ServerName[MAXBUF],Link_IPAddr[MAXBUF],Link_Port[MAXBUF]; if (pcnt != 1) { return; } if (strlen(parameters[0])>1) { /* make the stats query 1 character long */ parameters[0][1] = '\0'; } if (!strcasecmp(parameters[0],"c")) { for (int i = 0; i < ConfValueEnum("link",&config_f); i++) { ConfValue("link","name",i,Link_ServerName,&config_f); ConfValue("link","ipaddr",i,Link_IPAddr,&config_f); ConfValue("link","port",i,Link_Port,&config_f); WriteServ(user->fd,"213 %s C *@%s * %s %s 0 M",user->nick,Link_IPAddr,Link_ServerName,Link_Port); WriteServ(user->fd,"244 %s H * * %s",user->nick,Link_ServerName); } } if (!strcasecmp(parameters[0],"i")) { int idx = 0; for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++) { WriteServ(user->fd,"215 %s I * * * %d %d %s *",user->nick,MAXCLIENTS,idx,ServerName); idx++; } } if (!strcasecmp(parameters[0],"y")) { int idx = 0; for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++) { WriteServ(user->fd,"218 %s Y %d %d 0 %d %d",user->nick,idx,120,i->flood,i->registration_timeout); idx++; } } if (!strcmp(parameters[0],"U")) { for (int i = 0; i < ConfValueEnum("uline",&config_f); i++) { ConfValue("uline","server",i,Link_ServerName,&config_f); WriteServ(user->fd,"248 %s U %s",user->nick,Link_ServerName); } } if (!strcmp(parameters[0],"P")) { int idx = 0; for (user_hash::iterator i = clientlist.begin(); i != clientlist.end(); i++) { if (strchr(i->second->modes,'o')) { WriteServ(user->fd,"249 %s :%s (%s@%s) Idle: %d",user->nick,i->second->nick,i->second->ident,i->second->dhost,(TIME - i->second->idle_lastmsg)); idx++; } } WriteServ(user->fd,"249 %s :%d OPER(s)",user->nick,idx); //249 [Brain] :bwoadway-monitor (~wgmon@204.152.186.58) Idle: 18 } if (!strcmp(parameters[0],"k")) { stats_k(user); } if (!strcmp(parameters[0],"g")) { stats_g(user); } if (!strcmp(parameters[0],"q")) { stats_q(user); } if (!strcmp(parameters[0],"Z")) { stats_z(user); } if (!strcmp(parameters[0],"e")) { stats_e(user); } /* stats m (list number of times each command has been used, plus bytecount) */ if (!strcmp(parameters[0],"m")) { for (int i = 0; i < cmdlist.size(); i++) { if (cmdlist[i].handler_function) { if (cmdlist[i].use_count) { /* RPL_STATSCOMMANDS */ WriteServ(user->fd,"212 %s %s %d %d",user->nick,cmdlist[i].command,cmdlist[i].use_count,cmdlist[i].total_bytes); } } } } /* stats z (debug and memory info) */ if (!strcmp(parameters[0],"z")) { WriteServ(user->fd,"249 %s :Users(HASH_MAP) %d (%d bytes, %d buckets)",user->nick,clientlist.size(),clientlist.size()*sizeof(userrec),clientlist.bucket_count()); WriteServ(user->fd,"249 %s :Channels(HASH_MAP) %d (%d bytes, %d buckets)",user->nick,chanlist.size(),chanlist.size()*sizeof(chanrec),chanlist.bucket_count()); WriteServ(user->fd,"249 %s :Commands(VECTOR) %d (%d bytes)",user->nick,cmdlist.size(),cmdlist.size()*sizeof(command_t)); WriteServ(user->fd,"249 %s :MOTD(VECTOR) %d, RULES(VECTOR) %d",user->nick,MOTD.size(),RULES.size()); WriteServ(user->fd,"249 %s :address_cache(HASH_MAP) %d (%d buckets)",user->nick,IP.size(),IP.bucket_count()); WriteServ(user->fd,"249 %s :Modules(VECTOR) %d (%d)",user->nick,modules.size(),modules.size()*sizeof(Module)); WriteServ(user->fd,"249 %s :ClassFactories(VECTOR) %d (%d)",user->nick,factory.size(),factory.size()*sizeof(ircd_module)); WriteServ(user->fd,"249 %s :Ports(STATIC_ARRAY) %d",user->nick,boundPortCount); } /* stats o */ if (!strcmp(parameters[0],"o")) { for (int i = 0; i < ConfValueEnum("oper",&config_f); i++) { char LoginName[MAXBUF]; char HostName[MAXBUF]; char OperType[MAXBUF]; ConfValue("oper","name",i,LoginName,&config_f); ConfValue("oper","host",i,HostName,&config_f); ConfValue("oper","type",i,OperType,&config_f); WriteServ(user->fd,"243 %s O %s * %s %s 0",user->nick,HostName,LoginName,OperType); } } /* stats l (show user I/O stats) */ if (!strcmp(parameters[0],"l")) { WriteServ(user->fd,"211 %s :server:port nick bytes_in cmds_in bytes_out cmds_out",user->nick); for (user_hash::iterator i = clientlist.begin(); i != clientlist.end(); i++) { if (isnick(i->second->nick)) { WriteServ(user->fd,"211 %s :%s:%d %s %d %d %d %d",user->nick,ServerName,i->second->port,i->second->nick,i->second->bytes_in,i->second->cmds_in,i->second->bytes_out,i->second->cmds_out); } else { WriteServ(user->fd,"211 %s :%s:%d (unknown@%d) %d %d %d %d",user->nick,ServerName,i->second->port,i->second->fd,i->second->bytes_in,i->second->cmds_in,i->second->bytes_out,i->second->cmds_out); } } } /* stats u (show server uptime) */ if (!strcmp(parameters[0],"u")) { time_t current_time = 0; current_time = TIME; time_t server_uptime = current_time - startup_time; struct tm* stime; stime = gmtime(&server_uptime); /* i dont know who the hell would have an ircd running for over a year nonstop, but * Craig suggested this, and it seemed a good idea so in it went */ if (stime->tm_year > 70) { WriteServ(user->fd,"242 %s :Server up %d years, %d days, %.2d:%.2d:%.2d",user->nick,(stime->tm_year-70),stime->tm_yday,stime->tm_hour,stime->tm_min,stime->tm_sec); } else { WriteServ(user->fd,"242 %s :Server up %d days, %.2d:%.2d:%.2d",user->nick,stime->tm_yday,stime->tm_hour,stime->tm_min,stime->tm_sec); } } WriteServ(user->fd,"219 %s %s :End of /STATS report",user->nick,parameters[0]); WriteOpers("*** Notice: Stats '%s' requested by %s (%s@%s)",parameters[0],user->nick,user->ident,user->host); } void handle_connect(char **parameters, int pcnt, userrec *user) { char Link_ServerName[1024]; char Link_IPAddr[1024]; char Link_Port[1024]; char Link_Pass[1024]; int LinkPort; bool found = false; for (int i = 0; i < ConfValueEnum("link",&config_f); i++) { if (!found) { ConfValue("link","name",i,Link_ServerName,&config_f); ConfValue("link","ipaddr",i,Link_IPAddr,&config_f); ConfValue("link","port",i,Link_Port,&config_f); ConfValue("link","sendpass",i,Link_Pass,&config_f); log(DEBUG,"(%d) Comparing against name='%s', ipaddr='%s', port='%s', recvpass='%s'",i,Link_ServerName,Link_IPAddr,Link_Port,Link_Pass); LinkPort = atoi(Link_Port); if (match(Link_ServerName,parameters[0])) { found = true; break; } } } if (!found) { WriteServ(user->fd,"NOTICE %s :*** Failed to connect to %s: No servers matching this pattern are configured for linking.",user->nick,parameters[0]); return; } // TODO: Perform a check here to stop a server being linked twice! WriteServ(user->fd,"NOTICE %s :*** Connecting to %s (%s) port %s...",user->nick,Link_ServerName,Link_IPAddr,Link_Port); if (me[defaultRoute]) { me[defaultRoute]->BeginLink(Link_IPAddr,LinkPort,Link_Pass,Link_ServerName,me[defaultRoute]->port); return; } else { WriteServ(user->fd,"NOTICE %s :No default route is defined for server connections on this server. You must define a server connection to be default route so that sockets can be bound to it.",user->nick); } } void handle_squit(char **parameters, int pcnt, userrec *user) { // send out an squit across the mesh and then clear the server list (for local squit) if (!pcnt) { WriteOpers("SQUIT command issued by %s",user->nick); char buffer[MAXBUF]; snprintf(buffer,MAXBUF,"& %s",ServerName); NetSendToAll(buffer); DoSplitEveryone(); } else { WriteServ(user->fd,"NOTICE :*** Remote SQUIT not supported yet."); } } void handle_links(char **parameters, int pcnt, userrec *user) { WriteServ(user->fd,"364 %s %s %s :0 %s",user->nick,ServerName,ServerName,ServerDesc); for (int j = 0; j < 32; j++) { if (me[j] != NULL) { for (int k = 0; k < me[j]->connectors.size(); k++) { WriteServ(user->fd,"364 %s %s %s :1 %s",user->nick,me[j]->connectors[k].GetServerName().c_str(),ServerName,me[j]->connectors[k].GetDescription().c_str()); } } } WriteServ(user->fd,"365 %s * :End of /LINKS list.",user->nick); } void handle_map(char **parameters, int pcnt, userrec *user) { char line[MAXBUF]; snprintf(line,MAXBUF,"006 %s :%s",user->nick,ServerName); while (strlen(line) < 50) strcat(line," "); WriteServ(user->fd,"%s%d (%.2f%%)",line,local_count(),(float)(((float)local_count()/(float)registered_usercount())*100)); for (int j = 0; j < 32; j++) { if (me[j] != NULL) { for (int k = 0; k < me[j]->connectors.size(); k++) { snprintf(line,MAXBUF,"006 %s :%c-%s",user->nick,islast(me[j]->connectors[k].GetServerName().c_str()),me[j]->connectors[k].GetServerName().c_str()); while (strlen(line) < 50) strcat(line," "); WriteServ(user->fd,"%s%d (%.2f%%)",line,map_count(me[j]->connectors[k].GetServerName().c_str()),(float)(((float)map_count(me[j]->connectors[k].GetServerName().c_str())/(float)registered_usercount())*100)); } } } WriteServ(user->fd,"007 %s :End of /MAP",user->nick); } bool is_uline(const char* server) { char ServName[MAXBUF]; int i,j; for (int i = 0; i < ConfValueEnum("uline",&config_f); i++) { ConfValue("uline","server",i,ServName,&config_f); if (!strcasecmp(server,ServName)) { return true; } } return false; } void handle_oper(char **parameters, int pcnt, userrec *user) { char LoginName[MAXBUF]; char Password[MAXBUF]; char OperType[MAXBUF]; char TypeName[MAXBUF]; char HostName[MAXBUF]; char TheHost[MAXBUF]; int i,j; bool found = false; bool fail2 = false; char global[MAXBUF]; snprintf(TheHost,MAXBUF,"%s@%s",user->ident,user->host); for (int i = 0; i < ConfValueEnum("oper",&config_f); i++) { ConfValue("oper","name",i,LoginName,&config_f); ConfValue("oper","password",i,Password,&config_f); ConfValue("oper","type",i,OperType,&config_f); ConfValue("oper","host",i,HostName,&config_f); if ((!strcmp(LoginName,parameters[0])) && (!strcmp(Password,parameters[1])) && (match(TheHost,HostName))) { fail2 = true; for (j =0; j < ConfValueEnum("type",&config_f); j++) { ConfValue("type","name",j,TypeName,&config_f); if (!strcmp(TypeName,OperType)) { /* found this oper's opertype */ snprintf(global,MAXBUF,"| %s %s",user->nick,TypeName); NetSendToAll(global); ConfValue("type","host",j,HostName,&config_f); ChangeDisplayedHost(user,HostName); strlcpy(user->oper,TypeName,NICKMAX); found = true; fail2 = false; break; } } } if (found) break; } if (found) { /* correct oper credentials */ WriteOpers("*** %s (%s@%s) is now an IRC operator of type %s",user->nick,user->ident,user->host,OperType); WriteServ(user->fd,"381 %s :You are now an IRC operator of type %s",user->nick,OperType); if (!strchr(user->modes,'o')) { strcat(user->modes,"o"); WriteServ(user->fd,"MODE %s :+o",user->nick); snprintf(global,MAXBUF,"M %s +o",user->nick); NetSendToAll(global); FOREACH_MOD OnOper(user); } } else { if (!fail2) { WriteServ(user->fd,"491 %s :Invalid oper credentials",user->nick); WriteOpers("*** WARNING! Failed oper attempt by %s!%s@%s!",user->nick,user->ident,user->host); log(DEFAULT,"OPER: Failed oper attempt by %s!%s@%s: user, host or password did not match.",user->nick,user->ident,user->host); } else { WriteServ(user->fd,"491 %s :Your oper block does not have a valid opertype associated with it",user->nick); WriteOpers("*** CONFIGURATION ERROR! Oper block mismatch for OperType %s",OperType); log(DEFAULT,"OPER: Failed oper attempt by %s!%s@%s: credentials valid, but oper type nonexistent.",user->nick,user->ident,user->host); } } return; } void handle_nick(char **parameters, int pcnt, userrec *user) { if (pcnt < 1) { log(DEBUG,"not enough params for handle_nick"); return; } if (!parameters[0]) { log(DEBUG,"invalid parameter passed to handle_nick"); return; } if (!strlen(parameters[0])) { log(DEBUG,"zero length new nick passed to handle_nick"); return; } if (!user) { log(DEBUG,"invalid user passed to handle_nick"); return; } if (!user->nick) { log(DEBUG,"invalid old nick passed to handle_nick"); return; } if (!strcasecmp(user->nick,parameters[0])) { log(DEBUG,"old nick is new nick, skipping"); return; } else { if (strlen(parameters[0]) > 1) { if (parameters[0][0] == ':') { *parameters[0]++; } } if (matches_qline(parameters[0])) { WriteOpers("*** Q-Lined nickname %s from %s!%s@%s: %s",parameters[0],user->nick,user->ident,user->host,matches_qline(parameters[0])); WriteServ(user->fd,"432 %s %s :Invalid nickname: %s",user->nick,parameters[0],matches_qline(parameters[0])); return; } if ((Find(parameters[0])) && (Find(parameters[0]) != user)) { WriteServ(user->fd,"433 %s %s :Nickname is already in use.",user->nick,parameters[0]); return; } } if (isnick(parameters[0]) == 0) { WriteServ(user->fd,"432 %s %s :Erroneous Nickname",user->nick,parameters[0]); return; } if (user->registered == 7) { int MOD_RESULT = 0; FOREACH_RESULT(OnUserPreNick(user,parameters[0])); if (MOD_RESULT) { // if a module returns true, the nick change is silently forbidden. return; } WriteCommon(user,"NICK %s",parameters[0]); // Q token must go to ALL servers!!! char buffer[MAXBUF]; snprintf(buffer,MAXBUF,"n %s %s",user->nick,parameters[0]); NetSendToAll(buffer); } char oldnick[NICKMAX]; strlcpy(oldnick,user->nick,NICKMAX); /* change the nick of the user in the users_hash */ user = ReHashNick(user->nick, parameters[0]); /* actually change the nick within the record */ if (!user) return; if (!user->nick) return; strlcpy(user->nick, parameters[0],NICKMAX); log(DEBUG,"new nick set: %s",user->nick); if (user->registered < 3) { user->registered = (user->registered | 2); // dont attempt to look up the dns until they pick a nick... because otherwise their pointer WILL change // and unless we're lucky we'll get a duff one later on. user->dns_done = (!lookup_dns(user->nick)); if (user->dns_done) log(DEBUG,"Aborting dns lookup of %s because dns server experienced a failure.",user->nick); } if (user->registered == 3) { /* user is registered now, bit 0 = USER command, bit 1 = sent a NICK command */ ConnectUser(user); } if (user->registered == 7) { FOREACH_MOD OnUserPostNick(user,oldnick); } } void handle_V(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host) { char* src = strtok(params," "); char* dest = strtok(NULL," :"); char* text = strtok(NULL,"\r\n"); text++; userrec* user = Find(src); if (user) { userrec* dst = Find(dest); if (dst) { WriteTo(user, dst, "NOTICE %s :%s", dst->nick, text); } else { chanrec* d = FindChan(dest); if (d) { ChanExceptSender(d, user, "NOTICE %s :%s", d->name, text); } } } } void handle_P(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host) { char* src = strtok(params," "); char* dest = strtok(NULL," :"); char* text = strtok(NULL,"\r\n"); text++; userrec* user = Find(src); if (user) { userrec* dst = Find(dest); if (dst) { WriteTo(user, dst, "PRIVMSG %s :%s", dst->nick, text); } else { chanrec* d = FindChan(dest); if (d) { ChanExceptSender(d, user, "PRIVMSG %s :%s", d->name, text); } } } } void handle_i(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host) { char* nick = strtok(params," "); char* from = strtok(NULL," "); char* channel = strtok(NULL," "); userrec* u = Find(nick); userrec* user = Find(from); chanrec* c = FindChan(channel); if ((c) && (u) && (user)) { u->InviteTo(c->name); WriteFrom(u->fd,user,"INVITE %s :%s",u->nick,c->name); } } void handle_t(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host) { char* setby = strtok(params," "); char* channel = strtok(NULL," :"); char* topic = strtok(NULL,"\r\n"); topic++; userrec* u = Find(setby); chanrec* c = FindChan(channel); if ((c) && (u)) { WriteChannelLocal(c,u,"TOPIC %s :%s",c->name,topic); strlcpy(c->topic,topic,MAXTOPIC); strlcpy(c->setby,u->nick,NICKMAX); c->topicset = TIME; } } void handle_T(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host) { char* tm = strtok(params," "); char* setby = strtok(NULL," "); char* channel = strtok(NULL," :"); char* topic = strtok(NULL,"\r\n"); topic++; time_t TS = atoi(tm); chanrec* c = FindChan(channel); if (c) { // in the case of topics and TS, the *NEWER* if (TS <= c->topicset) { WriteChannelLocal(c,NULL,"TOPIC %s :%s",c->name,topic); strlcpy(c->topic,topic,MAXTOPIC); strlcpy(c->setby,setby,NICKMAX); } } } void handle_M(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host) { char* pars[128]; char original[MAXBUF],target[MAXBUF]; strlcpy(original,params,MAXBUF); int index = 0; char* parameter = strtok(params," "); strlcpy(target,parameter,MAXBUF); while (parameter) { if (parameter[0] == ':') parameter++; pars[index++] = parameter; parameter = strtok(NULL," "); } log(DEBUG,"*** MODE: %s %s",pars[0],pars[1]); merge_mode(pars,index); if (FindChan(target)) { WriteChannelLocal(FindChan(target), NULL, "MODE %s",original); } if (Find(target)) { Write(Find(target)->fd,":%s MODE %s",ServerName,original); } } // m is modes set by users only (not servers) valid targets are channels or users. void handle_m(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host) { // m blah #chatspike +b *!test@*4 char* pars[128]; char original[MAXBUF]; strlcpy(original,params,MAXBUF); if (!strchr(params,' ')) { WriteOpers("WARNING! 'm' token in data stream without any parameters! Something fishy is going on!"); return; } int index = 0; char* src = strtok(params," "); userrec* user = Find(src); if (user) { log(DEBUG,"Found user: %s",user->nick); char* parameter = strtok(NULL," "); while (parameter) { pars[index++] = parameter; parameter = strtok(NULL," "); } log(DEBUG,"Calling merge_mode2"); merge_mode2(pars,index,user); } } void handle_L(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host) { char* nick = strtok(params," "); char* channel = strtok(NULL," :"); char* reason = strtok(NULL,"\r\n"); userrec* user = Find(nick); reason++; if (user) { if (strcmp(reason,"")) { del_channel(user,channel,reason,true); } else { del_channel(user,channel,NULL,true); } } } void handle_K(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host) { char* src = strtok(params," "); char* nick = strtok(NULL," :"); char* reason = strtok(NULL,"\r\n"); char kreason[MAXBUF]; reason++; userrec* u = Find(nick); userrec* user = Find(src); if ((user) && (u)) { WriteTo(user, u, "KILL %s :%s!%s!%s!%s (%s)", u->nick, source->name, ServerName, user->dhost,user->nick,reason); WriteOpers("*** Remote kill from %s by %s: %s!%s@%s (%s)",source->name,user->nick,u->nick,u->ident,u->host,reason); snprintf(kreason,MAXBUF,"[%s] Killed (%s (%s))",source->name,user->nick,reason); kill_link(u,kreason); } } void handle_Q(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host) { char* nick = strtok(params," :"); char* reason = strtok(NULL,"\r\n"); reason++; userrec* user = Find(nick); if (user) { if (strlen(reason)>MAXQUIT) { reason[MAXQUIT-1] = '\0'; } WriteCommonExcept(user,"QUIT :%s",reason); user_hash::iterator iter = clientlist.find(user->nick); if (iter != clientlist.end()) { log(DEBUG,"deleting user hash value %d",iter->second); if ((iter->second) && (user->registered == 7)) { delete iter->second; } clientlist.erase(iter); } purge_empty_chans(); } } void handle_n(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host) { char* oldnick = strtok(params," "); char* newnick = strtok(NULL," "); userrec* user = Find(oldnick); if (user) { WriteCommon(user,"NICK %s",newnick); if (is_uline(tcp_host)) { int MOD_RESULT = 0; FOREACH_RESULT(OnUserPreNick(user,newnick)); if (MOD_RESULT) { // if a module returns true, the nick change couldnt be allowed kill_link(user,"Nickname collision"); return; } if (matches_qline(newnick)) { kill_link(user,"Nickname collision"); return; } // broadcast this because its a services thingy char buffer[MAXBUF]; snprintf(buffer,MAXBUF,"n %s %s",user->nick,newnick); NetSendToAll(buffer); } user = ReHashNick(user->nick, newnick); if (!user) return; if (!user->nick) return; strlcpy(user->nick, newnick,NICKMAX); log(DEBUG,"new nick set: %s",user->nick); } } // k : void handle_k(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host) { char* src = strtok(params," "); char* dest = strtok(NULL," "); char* channel = strtok(NULL," :"); char* reason = strtok(NULL,"\r\n"); reason++; userrec* s = Find(src); userrec* d = Find(dest); chanrec* c = FindChan(channel); if ((s) && (d) && (c)) { kick_channel(s,d,c,reason); return; } d = Find(channel); c = FindChan(dest); if ((s) && (d) && (c)) { kick_channel(s,d,c,reason); return; } } void handle_AT(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host) { char* who = strtok(params," :"); char* text = strtok(NULL,"\r\n"); text++; userrec* s = Find(who); if (s) { WriteWallOps(s,true,text); } } void handle_H(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host) { log(DEBUG,"Adding ULined server %s to my map",params); ircd_connector s; s.SetState(STATE_DISCONNECTED); s.SetServerName(params); for (int j = 0; j < 32; j++) { if (me[j] != NULL) { for (int k = 0; k < me[j]->connectors.size(); k++) { if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),params)) { // dont allow a server to be added twice log(DEBUG,"ULined server %s already in the map!",params); return; } } } } source->connectors.push_back(s); WriteOpers("Non-Mesh server %s has joined the network",params); } void handle_N(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host) { char* tm = strtok(params," "); char* nick = strtok(NULL," "); char* host = strtok(NULL," "); char* dhost = strtok(NULL," "); char* ident = strtok(NULL," "); char* modes = strtok(NULL," "); char* ipaddr = strtok(NULL," "); char* server = strtok(NULL," :"); char* gecos = strtok(NULL,"\r\n"); gecos++; modes++; time_t TS = atoi(tm); user_hash::iterator iter = clientlist.find(nick); if (iter != clientlist.end()) { // nick collision WriteOpers("Nickname collision: %s@%s != %s@%s",nick,server,iter->second->nick,iter->second->server); char str[MAXBUF]; snprintf(str,MAXBUF,"Killed (Nick Collision (%s@%s < %s@%s))",nick,server,iter->second->nick,iter->second->server); WriteServ(iter->second->fd, "KILL %s :%s",iter->second->nick,str); kill_link(iter->second,str); } clientlist[nick] = new userrec(); // remote users have an fd of -1. This is so that our Write abstraction // routines know to route any messages to this record away to whatever server // theyre on. clientlist[nick]->fd = -1; strlcpy(clientlist[nick]->nick, nick,NICKMAX); strlcpy(clientlist[nick]->host, host,160); strlcpy(clientlist[nick]->dhost, dhost,160); strlcpy(clientlist[nick]->server, server,256); strlcpy(clientlist[nick]->ident, ident,10); // +1 char to compensate for tilde strlcpy(clientlist[nick]->fullname, gecos,128); clientlist[nick]->signon = TS; clientlist[nick]->nping = 0; // this is ignored for a remote user anyway. clientlist[nick]->lastping = 1; clientlist[nick]->port = 0; // so is this... clientlist[nick]->registered = 7; // this however we need to set for them to receive messages and appear online clientlist[nick]->idle_lastmsg = TIME; // this is unrealiable and wont actually be used locally for (int i = 0; i < MAXCHANS; i++) { clientlist[nick]->chans[i].channel = NULL; clientlist[nick]->chans[i].uc_modes = 0; } } void handle_F(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host) { long tdiff = TIME - atoi(params); if (tdiff) WriteOpers("TS split for %s -> %s: %d",source->name,reply->name,tdiff); } void handle_a(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host) { char* nick = strtok(params," :"); char* gecos = strtok(NULL,"\r\n"); userrec* user = Find(nick); if (user) strlcpy(user->fullname,gecos,MAXBUF); } void handle_b(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host) { char* nick = strtok(params," "); char* host = strtok(NULL," "); userrec* user = Find(nick); if (user) strlcpy(user->dhost,host,160); } void handle_plus(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host) { // %s %s %d %d // + test3.chatspike.net 7010 -2016508415 char* servername = strtok(params," "); char* ipaddr = strtok(NULL," "); char* ipport = strtok(NULL," "); char* cookie = strtok(NULL," "); log(DEBUG,"*** Connecting back to %s:%d",ipaddr,atoi(ipport)); bool conn_already = false; for (int i = 0; i < 32; i++) { if (me[i] != NULL) { for (int j = 0; j < me[i]->connectors.size(); j++) { if (!strcasecmp(me[i]->connectors[j].GetServerName().c_str(),servername)) { if (me[i]->connectors[j].GetServerPort() == atoi(ipport)) { log(DEBUG,"Already got a connection to %s:%d, ignoring +",ipaddr,atoi(ipport)); conn_already = true; } } } } } if (!conn_already) me[defaultRoute]->MeshCookie(ipaddr,atoi(ipport),atoi(cookie),servername); } void handle_R(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host) { char* server = strtok(params," "); char* data = strtok(NULL,"\r\n"); if ((!data) || (!server)) { log(DEBUG,"Someones playing silly buggers, attempting to send to a null server or send a null message (BUG?)"); return; } log(DEBUG,"Forwarded packet '%s' to '%s'",data,server); NetSendToOne(server,data); } void handle_J(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host) { // IMPORTANT NOTE // The J token currently has no timestamp - this needs looking at // because it will allow splitriding. char* nick = strtok(params," "); char* channel = strtok(NULL," "); userrec* user = Find(nick); while (channel) { if ((user != NULL) && (strcmp(channel,""))) { char privilage = '\0'; if (channel[0] != '#') { privilage = channel[0]; channel++; } add_channel(user,channel,"",true); // now work out the privilages they should have on each channel // and send the appropriate servermodes. for (int i = 0; i != MAXCHANS; i++) { if (user->chans[i].channel) { if (!strcasecmp(user->chans[i].channel->name,channel)) { if (privilage == '@') { user->chans[i].uc_modes = user->chans[i].uc_modes | UCMODE_OP; WriteChannelLocal(user->chans[i].channel, NULL, "MODE %s +o %s",channel,user->nick); } if (privilage == '%') { user->chans[i].uc_modes = user->chans[i].uc_modes | UCMODE_HOP; WriteChannelLocal(user->chans[i].channel, NULL, "MODE %s +h %s",channel,user->nick); } if (privilage == '+') { user->chans[i].uc_modes = user->chans[i].uc_modes | UCMODE_VOICE; WriteChannelLocal(user->chans[i].channel, NULL, "MODE %s +v %s",channel,user->nick); } } } } } channel = strtok(NULL," "); } } void handle_dollar(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host) { log(DEBUG,"Storing routing table..."); char* sourceserver = strtok(params," "); char* server = strtok(NULL," "); for (int i = 0; i < 32; i++) { if (me[i] != NULL) { for (int j = 0; j < me[i]->connectors.size(); j++) { if (!strcasecmp(me[i]->connectors[j].GetServerName().c_str(),sourceserver)) { me[i]->connectors[j].routes.clear(); log(DEBUG,"Found entry for source server."); while (server) { // store each route me[i]->connectors[j].routes.push_back(server); log(DEBUG,"*** Stored route: %s -> %s -> %s",ServerName,sourceserver,server); server = strtok(NULL," "); } return; } } } } log(DEBUG,"Warning! routing table received from nonexistent server!"); } void handle_amp(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host) { log(DEBUG,"Netsplit! %s split from mesh, removing!",params); WriteOpers("*** NOTICE - Controlled netsplit: %s split from %s",params,ServerName); bool go_again = true; while (go_again) { go_again = false; for (int i = 0; i < 32; i++) { if (me[i] != NULL) { for (vector::iterator j = me[i]->connectors.begin(); j != me[i]->connectors.end(); j++) { if (!strcasecmp(j->GetServerName().c_str(),params)) { j->routes.clear(); j->CloseConnection(); me[i]->connectors.erase(j); go_again = true; break; } } } } } log(DEBUG,"Removed server. Will remove clients..."); // iterate through the userlist and remove all users on this server. // because we're dealing with a mesh, we dont have to deal with anything // "down-route" from this server (nice huh) go_again = true; char reason[MAXBUF]; snprintf(reason,MAXBUF,"%s %s",ServerName,params); while (go_again) { go_again = false; for (user_hash::const_iterator u = clientlist.begin(); u != clientlist.end(); u++) { if (!strcasecmp(u->second->server,params)) { kill_link(u->second,reason); go_again = true; break; } } } } long authcookie; void handle_hash(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host) { // # : log(DEBUG,"Adding G-line"); char* mask = strtok(params," "); char* who = strtok(NULL," "); char* create_time = strtok(NULL," "); char* duration = strtok(NULL," :"); char* reason = strtok(NULL,"\r\n"); add_gline(atoi(duration),who,reason,mask); // we must update the creation time on this gline // now that we've added it, or it wont expire at the right time. gline_set_creation_time(mask,atoi(create_time)); if (!atoi(duration)) { WriteOpers("*** %s Added permenant G-Line on %s.",who,mask); } else { WriteOpers("*** %s Added timed G-Line on %s to expire in %d seconds.",who,mask,atoi(duration)); } apply_lines(); } void handle_dot(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host) { log(DEBUG,"Removing G-line"); char* mask = strtok(params," "); char* who = strtok(NULL," "); if (mask) { if (del_gline(mask)) { if (who) { WriteOpers("*** %s Removed G-line on %s.",who,mask); } } } } void handle_add_sqline(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host) { // { : log(DEBUG,"Adding Q-line"); char* mask = strtok(params," "); char* who = strtok(NULL," "); char* create_time = strtok(NULL," "); char* duration = strtok(NULL," :"); char* reason = strtok(NULL,"\r\n"); add_qline(atoi(duration),who,reason,mask); // we must update the creation time on this gline // now that we've added it, or it wont expire at the right time. qline_set_creation_time(mask,atoi(create_time)); qline_make_global(mask); if (!atoi(duration)) { WriteOpers("*** %s Added permenant Q-Line on %s.",who,mask); } else { WriteOpers("*** %s Added timed Q-Line on %s to expire in %d seconds.",who,mask,atoi(duration)); } apply_lines(); } void handle_del_sqline(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host) { log(DEBUG,"Removing Q-line"); char* mask = strtok(params," "); char* who = strtok(NULL," "); if (mask) { if (del_qline(mask)) { if (who) { WriteOpers("*** %s Removed Q-line on %s.",who,mask); } } } } void handle_add_szline(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host) { // } : log(DEBUG,"Adding Z-line"); char* mask = strtok(params," "); char* who = strtok(NULL," "); char* create_time = strtok(NULL," "); char* duration = strtok(NULL," :"); char* reason = strtok(NULL,"\r\n"); add_zline(atoi(duration),who,reason,mask); // we must update the creation time on this gline // now that we've added it, or it wont expire at the right time. zline_set_creation_time(mask,atoi(create_time)); zline_make_global(mask); if (!atoi(duration)) { WriteOpers("*** %s Added permenant Z-Line on %s.",who,mask); } else { WriteOpers("*** %s Added timed Z-Line on %s to expire in %d seconds.",who,mask,atoi(duration)); } apply_lines(); } void handle_del_szline(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host) { log(DEBUG,"Removing Z-line"); char* mask = strtok(params," "); char* who = strtok(NULL," "); if (mask) { if (del_zline(mask)) { if (who) { WriteOpers("*** %s Removed Q-line on %s.",who,mask); } } } } void handle_pipe(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host) { char* nick = strtok(params," "); char* type = strtok(params," "); userrec* u = Find(nick); if (u) { strlcpy(u->oper,type,NICKMAX); } } void process_restricted_commands(char token,char* params,serverrec* source,serverrec* reply, char* tcp_host,char* ipaddr,int port) { char buffer[MAXBUF]; switch(token) { // Y // start netburst case 'Y': nb_start = TIME; WriteOpers("Server %s is starting netburst.",tcp_host); // now broadcast this new servers address out to all servers that are linked to us, // except the newcomer. They'll all attempt to connect back to it. authcookie = rand()*rand(); snprintf(buffer,MAXBUF,"~ %d",authcookie); NetSendToAll(buffer); break; // ~ // Store authcookie // once stored, this authcookie permits other servers to log in // without user or password, using it. case '~': auth_cookies.push_back(atoi(params)); log(DEBUG,"*** Stored auth cookie, will permit servers with auth-cookie %d",atoi(params)); break; // connect back to a server using an authcookie case '+': handle_plus(token,params,source,reply,tcp_host); break; // routing table case '$': handle_dollar(token,params,source,reply,tcp_host); break; // node unreachable - we cant route to a server, sooooo we slit it off. // servers can generate these for themselves for an squit. case '&': handle_amp(token,params,source,reply,tcp_host); break; // R // redirect token, send all of along to the given // server as this server has been found to still have a route to it case 'R': handle_R(token,params,source,reply,tcp_host); break; // ? // ping case '?': reply->SendPacket("!",tcp_host); break; // ? // pong case '!': break; // * // no operation case '*': break; // N : // introduce remote client case 'N': handle_N(token,params,source,reply,tcp_host); break; // a : // change GECOS (SETNAME) case 'a': handle_a(token,params,source,reply,tcp_host); break; // b : // change displayed host (SETHOST) case 'b': handle_b(token,params,source,reply,tcp_host); break; // t : // change a channel topic case 't': handle_t(token,params,source,reply,tcp_host); break; // i // invite a user to a channel case 'i': handle_i(token,params,source,reply,tcp_host); break; // k : // kick a user from a channel case 'k': handle_k(token,params,source,reply,tcp_host); break; // n // change nickname of client -- a server should only be able to // change the nicknames of clients that reside on it unless // they are ulined. case 'n': handle_n(token,params,source,reply,tcp_host); break; // J // Join user to channel list, merge channel permissions case 'J': handle_J(token,params,source,reply,tcp_host); break; // T : // change channel topic (netburst only) case 'T': handle_T(token,params,source,reply,tcp_host); break; // M [MODE-PARAMETERS] // Server setting modes on an object case 'M': handle_M(token,params,source,reply,tcp_host); break; // m [MODE-PARAMETERS] // User setting modes on an object case 'm': handle_m(token,params,source,reply,tcp_host); break; // P : // Send a private/channel message case 'P': handle_P(token,params,source,reply,tcp_host); break; // V : // Send a private/channel notice case 'V': handle_V(token,params,source,reply,tcp_host); break; // L : // User parting a channel case 'L': handle_L(token,params,source,reply,tcp_host); break; // Q : // user quitting case 'Q': handle_Q(token,params,source,reply,tcp_host); break; // H // introduce non-meshable server (such as a services server) case 'H': handle_H(token,params,source,reply,tcp_host); break; // K : // remote kill case 'K': handle_K(token,params,source,reply,tcp_host); break; // @ : // wallops case '@': handle_AT(token,params,source,reply,tcp_host); break; // # : // add gline case '#': handle_hash(token,params,source,reply,tcp_host); break; // . // remove gline case '.': handle_dot(token,params,source,reply,tcp_host); break; // # : // add gline case '{': handle_add_sqline(token,params,source,reply,tcp_host); break; // . // remove gline case '[': handle_del_sqline(token,params,source,reply,tcp_host); break; // # : // add gline case '}': handle_add_szline(token,params,source,reply,tcp_host); break; // . // remove gline case ']': handle_del_szline(token,params,source,reply,tcp_host); break; // | // set opertype case '|': handle_pipe(token,params,source,reply,tcp_host); break; // F // end netburst case 'F': WriteOpers("Server %s has completed netburst. (%d secs)",tcp_host,TIME-nb_start); handle_F(token,params,source,reply,tcp_host); nb_start = 0; // tell all the other servers to use this authcookie to connect back again // got '+ test3.chatspike.net 7010 -2016508415' from test.chatspike.net snprintf(buffer,MAXBUF,"+ %s %s %d %d",tcp_host,ipaddr,port,authcookie); NetSendToAllExcept(tcp_host,buffer); break; case '/': WriteOpers("Server %s is IRCServices-based server (assumes-SVSMODE) - Nickname Services: %s",tcp_host,params); strlcpy(source->nickserv,params,NICKMAX); break; // F // end netburst with no mesh creation case 'f': WriteOpers("Server %s has completed netburst. (%d secs)",tcp_host,TIME-nb_start); handle_F(token,params,source,reply,tcp_host); nb_start = 0; // tell everyone else about the new server name so they just add it in the disconnected // state snprintf(buffer,MAXBUF,"u %s :%s",tcp_host,GetServerDescription(tcp_host).c_str()); NetSendToAllExcept(tcp_host,buffer); break; // X // Send netburst now case 'X': WriteOpers("Sending my netburst to %s",tcp_host); DoSync(source,tcp_host); WriteOpers("Send of netburst to %s completed",tcp_host); NetSendMyRoutingTable(); break; // anything else default: WriteOpers("WARNING! Unknown datagram type '%c'",token); break; } } void handle_link_packet(char* udp_msg, char* tcp_host, serverrec *serv) { if ((!strncmp(udp_msg,"USER ",5)) || (!strncmp(udp_msg,"NICK ",5))) { // a user on a server port, just close their connection. RemoveServer(tcp_host); return; } char response[10240]; char token = udp_msg[0]; char* old = udp_msg; if (token == ':') // leading :servername or details - strip them off (services does this, sucky) { char* src = udp_msg+1; while (udp_msg[0] != ' ') udp_msg++; udp_msg[0] = 0; udp_msg++; char* comd = udp_msg; while (udp_msg[0] != ' ') udp_msg++; udp_msg[0] = 0; udp_msg++; char data[MAXBUF]; char source[MAXBUF]; char command[MAXBUF]; strlcpy(data,udp_msg,512); strlcpy(source,src,MAXBUF); strlcpy(command,comd,MAXBUF); udp_msg = old; // unused numeric: // :services-dev.chatspike.net 433 Craig Craig :Nickname is registered to someone else if (!strcmp(command,"433")) { token = '*'; } if (!strcmp(command,"432")) { token = '*'; } if (!strcmp(command,"NOTICE")) { snprintf(udp_msg,MAXBUF,"V %s %s",source,data); log(DEBUG,"Rewrote NOTICE from services to: '%s'",udp_msg); token = udp_msg[0]; } if (!strcmp(command,"QUIT")) { if ((!udp_msg) || (!strcmp(data,"")) || (strcmp(data,":"))) { strcpy(data,":No reason"); } if (!strcmp(data,":")) { strcpy(data,":No reason"); } snprintf(udp_msg,MAXBUF,"Q %s %s",source,data); log(DEBUG,"Rewrote QUIT from services to: '%s'",udp_msg); token = udp_msg[0]; } if (!strcmp(command,"SQUIT")) { snprintf(udp_msg,MAXBUF,"& %s",source); log(DEBUG,"Rewrote SQUIT from services to: '%s'",udp_msg); token = udp_msg[0]; } if (!strcmp(command,"SVSMODE")) { snprintf(udp_msg,MAXBUF,"m %s %s",source,data); log(DEBUG,"Rewrote SVSMODE from services to: '%s'",udp_msg); token = udp_msg[0]; } if (!strcmp(command,"SVS2MODE")) { snprintf(udp_msg,MAXBUF,"m %s %s",source,data); log(DEBUG,"Rewrote SVS2MODE from services to: '%s'",udp_msg); token = udp_msg[0]; } // todo: this wont work without u:lines // in give_ops etc allow nick on a u:lined serv to do just about anything if (!strcmp(command,"MODE")) { snprintf(udp_msg,MAXBUF,"m %s %s",source,data); log(DEBUG,"Rewrote MODE from services to: '%s'",udp_msg); token = udp_msg[0]; } if (!strcmp(command,"KICK")) { snprintf(udp_msg,MAXBUF,"k %s %s",source,data); log(DEBUG,"Rewrote KICK from services to: '%s'",udp_msg); token = udp_msg[0]; } if (!strcmp(command,"KILL")) { snprintf(udp_msg,MAXBUF,"K %s %s",source,data); log(DEBUG,"Rewrote KILL from services to: '%s'",udp_msg); token = udp_msg[0]; } if (!strcmp(command,"SVSJOIN")) { snprintf(udp_msg,MAXBUF,"J %s",data); NetSendToOne(tcp_host,udp_msg); char* nick = strtok(data," "); char* chan = strtok(NULL," "); log(DEBUG,"Rewrote SVSJOIN from services to: '%s'",udp_msg); userrec* u = Find(nick); if (u) { add_channel(u,chan,"",true); } token = udp_msg[0]; } } char* params = udp_msg + 2; char finalparam[1024]; strcpy(finalparam," :xxxx"); if (strstr(udp_msg," :")) { strlcpy(finalparam,strstr(udp_msg," :"),1024); } if (token == '-') { char* cookie = strtok(params," "); char* servername = strtok(NULL," "); char* serverdesc = finalparam+2; WriteOpers("AuthCookie CONNECT from %s (%s)",servername,tcp_host); for (int u = 0; u < auth_cookies.size(); u++) { if (auth_cookies[u] == atoi(cookie)) { WriteOpers("Allowed cookie from %s, is now part of the mesh",servername); for (int j = 0; j < 32; j++) { if (me[j] != NULL) { for (int k = 0; k < me[j]->connectors.size(); k++) { if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),tcp_host)) { me[j]->connectors[k].SetServerName(servername); me[j]->connectors[k].SetDescription(serverdesc); me[j]->connectors[k].SetState(STATE_CONNECTED); NetSendMyRoutingTable(); return; } } } WriteOpers("\2WARNING!\2 %s sent us an authentication packet but we are not authenticating with this server right now! Possible intrusion attempt!",tcp_host); return; } return; } } // bad cookie, bad bad! go sit in the corner! WriteOpers("Bad cookie from %s!",servername); return; } else if (token == 'S') { // S test.chatspike.net password portn :ChatSpike InspIRCd test server char* servername = strtok(params," "); char* password = strtok(NULL," "); char* myport = strtok(NULL," "); char* revision = strtok(NULL," "); char* serverdesc = finalparam+2; WriteOpers("CONNECT from %s (%s) (their port: %d)",servername,tcp_host,atoi(myport)); ircd_connector* cn = serv->FindHost(servername); if (cn) { WriteOpers("CONNECT aborted: Server %s already exists from %s",servername,ServerName); char buffer[MAXBUF]; snprintf(buffer,MAXBUF,"E :Server %s already exists!",servername); serv->SendPacket(buffer,tcp_host); RemoveServer(tcp_host); return; } if (atoi(revision) != GetRevision()) { WriteOpers("CONNECT aborted: Could not link to %s, is an incompatible version %s, our version is %d",servername,revision,GetRevision()); char buffer[MAXBUF]; sprintf(buffer,"E :Version number mismatch"); serv->SendPacket(buffer,tcp_host); RemoveServer(tcp_host); RemoveServer(servername); return; } for (int j = 0; j < serv->connectors.size(); j++) { if (!strcasecmp(serv->connectors[j].GetServerName().c_str(),tcp_host)) { serv->connectors[j].SetServerName(servername); serv->connectors[j].SetDescription(serverdesc); serv->connectors[j].SetServerPort(atoi(myport)); } } char Link_ServerName[1024]; char Link_IPAddr[1024]; char Link_Port[1024]; char Link_Pass[1024]; char Link_SendPass[1024]; int LinkPort = 0; // search for a corresponding block in the config files for (int i = 0; i < ConfValueEnum("link",&config_f); i++) { ConfValue("link","name",i,Link_ServerName,&config_f); ConfValue("link","ipaddr",i,Link_IPAddr,&config_f); ConfValue("link","port",i,Link_Port,&config_f); ConfValue("link","recvpass",i,Link_Pass,&config_f); ConfValue("link","sendpass",i,Link_SendPass,&config_f); log(DEBUG,"(%d) Comparing against name='%s', ipaddr='%s', port='%s', recvpass='%s'",i,Link_ServerName,Link_IPAddr,Link_Port,Link_Pass); LinkPort = atoi(Link_Port); if ((!strcasecmp(Link_ServerName,servername)) && (!strcmp(Link_Pass,password))) { // we have a matching link line - // send a 'diminutive' server message back... snprintf(response,10240,"s %s %s :%s",ServerName,Link_SendPass,ServerDesc); serv->SendPacket(response,servername); for (int t = 0; t < serv->connectors.size(); t++) { if (!strcasecmp(serv->connectors[t].GetServerName().c_str(),servername)) { serv->connectors[t].SetState(STATE_CONNECTED); } } return; } } char buffer[MAXBUF]; sprintf(buffer,"E :Access is denied (no matching link block)"); serv->SendPacket(buffer,tcp_host); WriteOpers("CONNECT from %s denied, no matching link block",servername); RemoveServer(tcp_host); RemoveServer(servername); return; } else if (token == 's') { // S test.chatspike.net password :ChatSpike InspIRCd test server char* servername = strtok(params," "); char* password = strtok(NULL," "); char* serverdesc = finalparam+2; // TODO: we should do a check here to ensure that this server is one we recently initiated a // link with, and didnt hear an 's' or 'E' back from yet (these are the only two valid responses // to an 'S' command. If we didn't recently send an 'S' to this server, theyre trying to spoof // a connect, so put out an oper alert! // for now, just accept all, we'll fix that later. WriteOpers("%s accepted our link credentials ",servername); char Link_ServerName[1024]; char Link_IPAddr[1024]; char Link_Port[1024]; char Link_Pass[1024]; char Link_SendPass[1024]; int LinkPort = 0; // search for a corresponding block in the config files for (int i = 0; i < ConfValueEnum("link",&config_f); i++) { ConfValue("link","name",i,Link_ServerName,&config_f); ConfValue("link","ipaddr",i,Link_IPAddr,&config_f); ConfValue("link","port",i,Link_Port,&config_f); ConfValue("link","recvpass",i,Link_Pass,&config_f); ConfValue("link","sendpass",i,Link_SendPass,&config_f); log(DEBUG,"(%d) Comparing against name='%s', ipaddr='%s', port='%s', recvpass='%s'",i,Link_ServerName,Link_IPAddr,Link_Port,Link_Pass); LinkPort = atoi(Link_Port); if (!strcasecmp(Link_ServerName,servername)) { // matching link at this end too, we're all done! // at this point we must begin key exchange and insert this // server into our 'active' table. for (int j = 0; j < 32; j++) { if (me[j] != NULL) { for (int k = 0; k < me[j]->connectors.size(); k++) { if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),tcp_host)) { char buffer[MAXBUF]; me[j]->connectors[k].SetDescription(serverdesc); me[j]->connectors[k].SetState(STATE_CONNECTED); sprintf(buffer,"X 0"); serv->SendPacket(buffer,tcp_host); DoSync(me[j],tcp_host); NetSendMyRoutingTable(); return; } } } WriteOpers("\2WARNING!\2 %s sent us an authentication packet but we are not authenticating with this server right noe! Possible intrusion attempt!",tcp_host); return; } } else { log(DEBUG,"Server names '%s' and '%s' don't match",Link_ServerName,servername); } } char buffer[MAXBUF]; sprintf(buffer,"E :Access is denied (no matching link block)"); serv->SendPacket(buffer,tcp_host); WriteOpers("CONNECT from %s denied, no matching link block",servername); RemoveServer(tcp_host); RemoveServer(servername); return; } else if (token == 'U') { // U services.chatspike.net password :ChatSpike Services // // non-meshed link, used by services. Everything coming from a non-meshed link is auto broadcasted. char* servername = strtok(params," "); char* password = strtok(NULL," "); char* serverdesc = finalparam+2; char Link_ServerName[1024]; char Link_IPAddr[1024]; char Link_Port[1024]; char Link_Pass[1024]; char Link_SendPass[1024]; int LinkPort = 0; // search for a corresponding block in the config files for (int i = 0; i < ConfValueEnum("link",&config_f); i++) { ConfValue("link","name",i,Link_ServerName,&config_f); ConfValue("link","ipaddr",i,Link_IPAddr,&config_f); ConfValue("link","port",i,Link_Port,&config_f); ConfValue("link","recvpass",i,Link_Pass,&config_f); ConfValue("link","sendpass",i,Link_SendPass,&config_f); log(DEBUG,"(%d) Comparing against name='%s', ipaddr='%s', port='%s', recvpass='%s'",i,Link_ServerName,Link_IPAddr,Link_Port,Link_Pass); LinkPort = atoi(Link_Port); if ((!strcasecmp(Link_ServerName,servername)) && (!strcmp(Link_Pass,password))) { // matching link at this end too, we're all done! // at this point we must begin key exchange and insert this // server into our 'active' table. for (int j = 0; j < 32; j++) { if (me[j] != NULL) { for (int k = 0; k < me[j]->connectors.size(); k++) { if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),tcp_host)) { char buffer[MAXBUF]; me[j]->connectors[k].SetDescription(serverdesc); me[j]->connectors[k].SetServerName(servername); me[j]->connectors[k].SetState(STATE_SERVICES); sprintf(buffer,"X 0"); serv->SendPacket(buffer,servername); DoSync(me[j],servername); snprintf(buffer,MAXBUF,"H %s",servername); NetSendToAllExcept(servername,buffer); WriteOpers("Non-Mesh server %s has joined the network",servername); log(DEBUG,"******** SENDING MY ROUTING TABLE! *******"); NetSendMyRoutingTable(); return; } } } WriteOpers("\2WARNING!\2 %s sent us an authentication packet but we are not authenticating with this server right noe! Possible intrusion attempt!",tcp_host); return; } } else { log(DEBUG,"Server names '%s' and '%s' don't match",Link_ServerName,servername); } } char buffer[MAXBUF]; sprintf(buffer,"E :Access is denied (no matching link block)"); serv->SendPacket(buffer,tcp_host); WriteOpers("CONNECT from %s denied, no matching link block",servername); RemoveServer(tcp_host); RemoveServer(servername); return; } else if (token == 'E') { char* error_message = finalparam+2; WriteOpers("ERROR from %s: %s",tcp_host,error_message); return; } else { serverrec* source_server = NULL; for (int j = 0; j < 32; j++) { if (me[j] != NULL) { for (int x = 0; x < me[j]->connectors.size(); x++) { log(DEBUG,"Servers are: '%s' '%s'",tcp_host,me[j]->connectors[x].GetServerName().c_str()); if (!strcasecmp(me[j]->connectors[x].GetServerName().c_str(),tcp_host)) { if ((me[j]->connectors[x].GetState() == STATE_CONNECTED) || (me[j]->connectors[x].GetState() == STATE_SERVICES)) { // found a valid ircd_connector. process_restricted_commands(token,params,me[j],serv,tcp_host,me[j]->connectors[x].GetServerIP(),me[j]->connectors[x].GetServerPort()); return; } } } } } log(DEBUG,"Unrecognised token or unauthenticated host in datagram from %s: %c",tcp_host,token); } } long duration(char* str) { char n_field[MAXBUF]; long total = 0; char* str_end = str + strlen(str); n_field[0] = 0; for (char* i = str; i < str_end; i++) { // if we have digits, build up a string for the value in n_field, // up to 10 digits in size. if ((*i >= '0') && (*i <= '9')) { strlcat(n_field,i,10); } else { // we dont have a digit, check for numeric tokens switch (tolower(*i)) { case 's': total += atoi(n_field); break; case 'm': total += (atoi(n_field)*duration_m); break; case 'h': total += (atoi(n_field)*duration_h); break; case 'd': total += (atoi(n_field)*duration_d); break; case 'w': total += (atoi(n_field)*duration_w); break; case 'y': total += (atoi(n_field)*duration_y); break; } n_field[0] = 0; } } // add trailing seconds total += atoi(n_field); return total; } void handle_kline(char **parameters, int pcnt, userrec *user) { if (pcnt >= 3) { add_kline(duration(parameters[1]),user->nick,parameters[2],parameters[0]); if (!duration(parameters[1])) { WriteOpers("*** %s added permenant K-line for %s.",user->nick,parameters[0]); } else { WriteOpers("*** %s added timed K-line for %s, expires in %d seconds.",user->nick,parameters[0],duration(parameters[1])); } } else { if (del_kline(parameters[0])) { WriteOpers("*** %s Removed K-line on %s.",user->nick,parameters[0]); } else { WriteServ(user->fd,"NOTICE %s :*** K-Line %s not found in list, try /stats k.",user->nick,parameters[0]); } } apply_lines(); } void handle_eline(char **parameters, int pcnt, userrec *user) { if (pcnt >= 3) { add_eline(duration(parameters[1]),user->nick,parameters[2],parameters[0]); if (!duration(parameters[1])) { WriteOpers("*** %s added permenant E-line for %s.",user->nick,parameters[0]); } else { WriteOpers("*** %s added timed E-line for %s, expires in %d seconds.",user->nick,parameters[0],duration(parameters[1])); } } else { if (del_eline(parameters[0])) { WriteOpers("*** %s Removed E-line on %s.",user->nick,parameters[0]); } else { WriteServ(user->fd,"NOTICE %s :*** E-Line %s not found in list, try /stats e.",user->nick,parameters[0]); } } // no need to apply the lines for an eline } void handle_gline(char **parameters, int pcnt, userrec *user) { char netdata[MAXBUF]; if (pcnt >= 3) { add_gline(duration(parameters[1]),user->nick,parameters[2],parameters[0]); // # : snprintf(netdata,MAXBUF,"# %s %s %ld %ld :%s",parameters[0],user->nick,TIME,duration(parameters[1]),parameters[2]); NetSendToAll(netdata); if (!duration(parameters[1])) { WriteOpers("*** %s added permenant G-line for %s.",user->nick,parameters[0]); } else { WriteOpers("*** %s added timed G-line for %s, expires in %d seconds.",user->nick,parameters[0],duration(parameters[1])); } } else { if (del_gline(parameters[0])) { // . snprintf(netdata,MAXBUF,". %s %s",parameters[0],user->nick); WriteOpers("*** %s Removed G-line on %s.",user->nick,parameters[0]); } else { WriteServ(user->fd,"NOTICE %s :*** G-Line %s not found in list, try /stats g.",user->nick,parameters[0]); } } apply_lines(); } void handle_zline(char **parameters, int pcnt, userrec *user) { if (pcnt >= 3) { add_zline(duration(parameters[1]),user->nick,parameters[2],parameters[0]); if (!duration(parameters[1])) { WriteOpers("*** %s added permenant Z-line for %s.",user->nick,parameters[0]); } else { WriteOpers("*** %s added timed Z-line for %s, expires in %d seconds.",user->nick,parameters[0],duration(parameters[1])); } } else { if (del_zline(parameters[0])) { WriteOpers("*** %s Removed Z-line on %s.",user->nick,parameters[0]); } else { WriteServ(user->fd,"NOTICE %s :*** Z-Line %s not found in list, try /stats Z.",user->nick,parameters[0]); } } apply_lines(); } void handle_qline(char **parameters, int pcnt, userrec *user) { if (pcnt >= 3) { add_qline(duration(parameters[1]),user->nick,parameters[2],parameters[0]); if (!duration(parameters[1])) { WriteOpers("*** %s added permenant Q-line for %s.",user->nick,parameters[0]); } else { WriteOpers("*** %s added timed Q-line for %s, expires in %d seconds.",user->nick,parameters[0],duration(parameters[1])); } } else { if (del_qline(parameters[0])) { WriteOpers("*** %s Removed Q-line on %s.",user->nick,parameters[0]); } else { WriteServ(user->fd,"NOTICE %s :*** Q-Line %s not found in list, try /stats k.",user->nick,parameters[0]); } } apply_lines(); }