1 /* +------------------------------------+
2 * | Inspire Internet Relay Chat Daemon |
3 * +------------------------------------+
5 * InspIRCd: (C) 2002-2007 InspIRCd Development Team
6 * See: http://www.inspircd.org/wiki/index.php/Credits
8 * This program is free but copyrighted software; see
9 * the file COPYING for details.
11 * ---------------------------------------------------
14 #include "configreader.h"
19 #include "socketengine.h"
22 #include "commands/cmd_whowas.h"
24 static unsigned long already_sent[MAX_DESCRIPTORS] = {0};
26 /* XXX: Used for speeding up WriteCommon operations */
27 unsigned long uniq_id = 0;
29 bool InitTypes(ServerConfig* conf, const char* tag)
31 if (conf->opertypes.size())
33 for (opertype_t::iterator n = conf->opertypes.begin(); n != conf->opertypes.end(); n++)
40 conf->opertypes.clear();
44 bool InitClasses(ServerConfig* conf, const char* tag)
46 if (conf->operclass.size())
48 for (operclass_t::iterator n = conf->operclass.begin(); n != conf->operclass.end(); n++)
55 conf->operclass.clear();
59 bool DoType(ServerConfig* conf, const char* tag, char** entries, ValueList &values, int* types)
61 const char* TypeName = values[0].GetString();
62 const char* Classes = values[1].GetString();
64 conf->opertypes[TypeName] = strdup(Classes);
68 bool DoClass(ServerConfig* conf, const char* tag, char** entries, ValueList &values, int* types)
70 const char* ClassName = values[0].GetString();
71 const char* CommandList = values[1].GetString();
73 conf->operclass[ClassName] = strdup(CommandList);
77 bool DoneClassesAndTypes(ServerConfig* conf, const char* tag)
82 std::string userrec::ProcessNoticeMasks(const char *sm)
84 bool adding = true, oldadding = false;
99 for (unsigned char d = 'A'; d <= 'z'; d++)
101 if (ServerInstance->SNO->IsEnabled(d))
103 if ((!IsNoticeMaskSet(d) && adding) || (IsNoticeMaskSet(d) && !adding))
105 if ((oldadding != adding) || (!output.length()))
106 output += (adding ? '+' : '-');
108 this->SetNoticeMask(d, adding);
117 if ((*c >= 'A') && (*c <= 'z') && (ServerInstance->SNO->IsEnabled(*c)))
119 if ((!IsNoticeMaskSet(*c) && adding) || (IsNoticeMaskSet(*c) && !adding))
121 if ((oldadding != adding) || (!output.length()))
122 output += (adding ? '+' : '-');
124 this->SetNoticeMask(*c, adding);
139 void userrec::StartDNSLookup()
144 const char* ip = this->GetIPString();
146 /* Special case for 4in6 (Have i mentioned i HATE 4in6?) */
147 if (!strncmp(ip, "0::ffff:", 8))
148 res_reverse = new UserResolver(this->ServerInstance, this, ip + 8, DNS_QUERY_PTR4, cached);
150 res_reverse = new UserResolver(this->ServerInstance, this, ip, this->GetProtocolFamily() == AF_INET ? DNS_QUERY_PTR4 : DNS_QUERY_PTR6, cached);
152 this->ServerInstance->AddResolver(res_reverse, cached);
154 catch (CoreException& e)
156 ServerInstance->Log(DEBUG,"Error in resolver: %s",e.GetReason());
160 UserResolver::UserResolver(InspIRCd* Instance, userrec* user, std::string to_resolve, QueryType qt, bool &cache) :
161 Resolver(Instance, to_resolve, qt, cache), bound_user(user)
163 this->fwd = (qt == DNS_QUERY_A || qt == DNS_QUERY_AAAA);
164 this->bound_fd = user->GetFd();
167 void UserResolver::OnLookupComplete(const std::string &result, unsigned int ttl, bool cached)
169 if ((!this->fwd) && (ServerInstance->SE->GetRef(this->bound_fd) == this->bound_user))
171 this->bound_user->stored_host = result;
174 /* Check we didnt time out */
175 if (this->bound_user->registered != REG_ALL)
179 if (this->bound_user->GetProtocolFamily() == AF_INET6)
181 /* IPV6 forward lookup (with possibility of 4in6) */
182 const char* ip = this->bound_user->GetIPString();
183 bound_user->res_forward = new UserResolver(this->ServerInstance, this->bound_user, result, (!strncmp(ip, "0::ffff:", 8) ? DNS_QUERY_A : DNS_QUERY_AAAA), cached);
187 /* IPV4 lookup (mixed protocol mode) */
188 bound_user->res_forward = new UserResolver(this->ServerInstance, this->bound_user, result, DNS_QUERY_A, cached);
191 /* IPV4 lookup (ipv4 only mode) */
192 bound_user->res_forward = new UserResolver(this->ServerInstance, this->bound_user, result, DNS_QUERY_A, cached);
194 this->ServerInstance->AddResolver(bound_user->res_forward, cached);
197 catch (CoreException& e)
199 ServerInstance->Log(DEBUG,"Error in resolver: %s",e.GetReason());
202 else if ((this->fwd) && (ServerInstance->SE->GetRef(this->bound_fd) == this->bound_user))
204 /* Both lookups completed */
205 std::string result2 = "0::ffff:";
206 result2.append(result);
207 if (this->bound_user->GetIPString() == result || this->bound_user->GetIPString() == result2)
209 std::string hostname = this->bound_user->stored_host;
210 if (hostname.length() < 65)
212 /* Check we didnt time out */
213 if ((this->bound_user->registered != REG_ALL) && (!this->bound_user->dns_done))
215 /* Hostnames starting with : are not a good thing (tm) */
216 if (*(hostname.c_str()) == ':')
217 hostname = "0" + hostname;
219 this->bound_user->WriteServ("NOTICE Auth :*** Found your hostname (%s)%s", hostname.c_str(), (cached ? " -- cached" : ""));
220 this->bound_user->dns_done = true;
221 strlcpy(this->bound_user->dhost, hostname.c_str(),64);
222 strlcpy(this->bound_user->host, hostname.c_str(),64);
223 /* Invalidate cache */
224 this->bound_user->InvalidateCache();
229 if (!this->bound_user->dns_done)
231 this->bound_user->WriteServ("NOTICE Auth :*** Your hostname is longer than the maximum of 64 characters, using your IP address (%s) instead.", this->bound_user->GetIPString());
232 this->bound_user->dns_done = true;
238 if (!this->bound_user->dns_done)
240 this->bound_user->WriteServ("NOTICE Auth :*** Your hostname does not match up with your IP address. Sorry, using your IP address (%s) instead.", this->bound_user->GetIPString());
241 this->bound_user->dns_done = true;
247 void UserResolver::OnError(ResolverError e, const std::string &errormessage)
249 if (ServerInstance->SE->GetRef(this->bound_fd) == this->bound_user)
251 /* Since dns timeout is implemented outside of the resolver, this was a race condition that could result in this message being sent *after*
252 * the user was fully connected. This check fixes that issue - Special */
253 if (!this->bound_user->dns_done)
255 /* Error message here */
256 this->bound_user->WriteServ("NOTICE Auth :*** Could not resolve your hostname: %s; using your IP address (%s) instead.", errormessage.c_str(), this->bound_user->GetIPString());
257 this->bound_user->dns_done = true;
263 bool userrec::IsNoticeMaskSet(unsigned char sm)
265 return (snomasks[sm-65]);
268 void userrec::SetNoticeMask(unsigned char sm, bool value)
270 snomasks[sm-65] = value;
273 const char* userrec::FormatNoticeMasks()
275 static char data[MAXBUF];
278 for (int n = 0; n < 64; n++)
281 data[offset++] = n+65;
290 bool userrec::IsModeSet(unsigned char m)
292 return (modes[m-65]);
295 void userrec::SetMode(unsigned char m, bool value)
300 const char* userrec::FormatModes()
302 static char data[MAXBUF];
304 for (int n = 0; n < 64; n++)
307 data[offset++] = n+65;
313 void userrec::DecrementModes()
315 for (int n = 0; n < 64; n++)
319 ModeHandler* mh = ServerInstance->Modes->FindMode(n+65, MODETYPE_USER);
326 userrec::userrec(InspIRCd* Instance) : ServerInstance(Instance)
328 // the PROPER way to do it, AVOID bzero at *ALL* costs
329 *password = *nick = *ident = *host = *dhost = *fullname = *awaymsg = *oper = 0;
330 server = (char*)Instance->FindServerNamePtr(Instance->Config->ServerName);
331 reset_due = ServerInstance->Time();
332 age = ServerInstance->Time(true);
333 lines_in = lastping = signon = idle_lastmsg = nping = registered = 0;
334 ChannelCount = timeout = flood = bytes_in = bytes_out = cmds_in = cmds_out = 0;
335 muted = exempt = haspassed = dns_done = false;
340 res_forward = res_reverse = NULL;
345 memset(modes,0,sizeof(modes));
346 memset(snomasks,0,sizeof(snomasks));
347 /* Invalidate cache */
348 operquit = cached_fullhost = cached_hostip = cached_makehost = cached_fullrealhost = NULL;
353 this->InvalidateCache();
354 this->DecrementModes();
359 clonemap::iterator x = ServerInstance->local_clones.find(this->GetIPString());
360 if (x != ServerInstance->local_clones.end())
365 ServerInstance->local_clones.erase(x);
369 clonemap::iterator y = ServerInstance->global_clones.find(this->GetIPString());
370 if (y != ServerInstance->global_clones.end())
375 ServerInstance->global_clones.erase(y);
379 if (this->GetProtocolFamily() == AF_INET)
381 delete (sockaddr_in*)ip;
383 #ifdef SUPPORT_IP6LINKS
386 delete (sockaddr_in6*)ip;
392 char* userrec::MakeHost()
394 if (this->cached_makehost)
395 return this->cached_makehost;
398 /* This is much faster than snprintf */
400 for(char* n = ident; *n; n++)
403 for(char* n = host; *n; n++)
407 this->cached_makehost = strdup(nhost);
409 return this->cached_makehost;
412 char* userrec::MakeHostIP()
414 if (this->cached_hostip)
415 return this->cached_hostip;
418 /* This is much faster than snprintf */
420 for(char* n = ident; *n; n++)
423 for(const char* n = this->GetIPString(); *n; n++)
427 this->cached_hostip = strdup(ihost);
429 return this->cached_hostip;
432 void userrec::CloseSocket()
434 shutdown(this->fd,2);
438 char* userrec::GetFullHost()
440 if (this->cached_fullhost)
441 return this->cached_fullhost;
445 for(char* n = nick; *n; n++)
448 for(char* n = ident; *n; n++)
451 for(char* n = dhost; *n; n++)
455 this->cached_fullhost = strdup(result);
457 return this->cached_fullhost;
460 char* userrec::MakeWildHost()
462 static char nresult[MAXBUF];
464 *t++ = '*'; *t++ = '!';
465 *t++ = '*'; *t++ = '@';
466 for(char* n = dhost; *n; n++)
472 int userrec::ReadData(void* buffer, size_t size)
476 return read(this->fd, buffer, size);
483 char* userrec::GetFullRealHost()
485 if (this->cached_fullrealhost)
486 return this->cached_fullrealhost;
488 char fresult[MAXBUF];
490 for(char* n = nick; *n; n++)
493 for(char* n = ident; *n; n++)
496 for(char* n = host; *n; n++)
500 this->cached_fullrealhost = strdup(fresult);
502 return this->cached_fullrealhost;
505 bool userrec::IsInvited(const irc::string &channel)
507 for (InvitedList::iterator i = invites.begin(); i != invites.end(); i++)
517 InvitedList* userrec::GetInviteList()
522 void userrec::InviteTo(const irc::string &channel)
524 invites.push_back(channel);
527 void userrec::RemoveInvite(const irc::string &channel)
529 for (InvitedList::iterator i = invites.begin(); i != invites.end(); i++)
539 bool userrec::HasPermission(const std::string &command)
546 * users on remote servers can completely bypass all permissions based checks.
547 * This prevents desyncs when one server has different type/class tags to another.
548 * That having been said, this does open things up to the possibility of source changes
549 * allowing remote kills, etc - but if they have access to the src, they most likely have
550 * access to the conf - so it's an end to a means either way.
555 // are they even an oper at all?
558 opertype_t::iterator iter_opertype = ServerInstance->Config->opertypes.find(this->oper);
559 if (iter_opertype != ServerInstance->Config->opertypes.end())
561 char* Classes = strdup(iter_opertype->second);
562 char* myclass = strtok_r(Classes," ",&savept);
565 operclass_t::iterator iter_operclass = ServerInstance->Config->operclass.find(myclass);
566 if (iter_operclass != ServerInstance->Config->operclass.end())
568 char* CommandList = strdup(iter_operclass->second);
569 mycmd = strtok_r(CommandList," ",&savept2);
572 if ((!strcasecmp(mycmd,command.c_str())) || (*mycmd == '*'))
578 mycmd = strtok_r(NULL," ",&savept2);
582 myclass = strtok_r(NULL," ",&savept);
590 /** NOTE: We cannot pass a const reference to this method.
591 * The string is changed by the workings of the method,
592 * so that if we pass const ref, we end up copying it to
593 * something we can change anyway. Makes sense to just let
594 * the compiler do that copy for us.
596 bool userrec::AddBuffer(std::string a)
600 std::string::size_type i = a.rfind('\r');
602 while (i != std::string::npos)
611 if (recvq.length() > (unsigned)this->recvqmax)
613 this->SetWriteError("RecvQ exceeded");
614 ServerInstance->WriteOpers("*** User %s RecvQ of %d exceeds connect class maximum of %d",this->nick,recvq.length(),this->recvqmax);
623 ServerInstance->Log(DEBUG,"Exception in userrec::AddBuffer()");
628 bool userrec::BufferIsReady()
630 return (recvq.find('\n') != std::string::npos);
633 void userrec::ClearBuffer()
638 std::string userrec::GetBuffer()
645 /* Strip any leading \r or \n off the string.
646 * Usually there are only one or two of these,
647 * so its is computationally cheap to do.
649 while ((*recvq.begin() == '\r') || (*recvq.begin() == '\n'))
650 recvq.erase(recvq.begin());
652 for (std::string::iterator x = recvq.begin(); x != recvq.end(); x++)
654 /* Find the first complete line, return it as the
655 * result, and leave the recvq as whats left
659 std::string ret = std::string(recvq.begin(), x);
660 recvq.erase(recvq.begin(), x + 1);
669 ServerInstance->Log(DEBUG,"Exception in userrec::GetBuffer()");
674 void userrec::AddWriteBuf(const std::string &data)
676 if (*this->GetWriteError())
679 if (sendq.length() + data.length() > (unsigned)this->sendqmax)
682 * Fix by brain - Set the error text BEFORE calling writeopers, because
683 * if we dont it'll recursively call here over and over again trying
684 * to repeatedly add the text to the sendq!
686 this->SetWriteError("SendQ exceeded");
687 ServerInstance->WriteOpers("*** User %s SendQ of %d exceeds connect class maximum of %d",this->nick,sendq.length() + data.length(),this->sendqmax);
693 if (data.length() > MAXBUF - 2) /* MAXBUF has a value of 514, to account for line terminators */
694 sendq.append(data.substr(0,MAXBUF - 4)).append("\r\n"); /* MAXBUF-4 = 510 */
700 this->SetWriteError("SendQ exceeded");
701 ServerInstance->WriteOpers("*** User %s SendQ got an exception",this->nick);
705 // send AS MUCH OF THE USERS SENDQ as we are able to (might not be all of it)
706 void userrec::FlushWriteBuf()
710 if ((this->fd == FD_MAGIC_NUMBER) || (*this->GetWriteError()))
714 if ((sendq.length()) && (this->fd != FD_MAGIC_NUMBER))
716 int old_sendq_length = sendq.length();
717 int n_sent = write(this->fd, this->sendq.data(), this->sendq.length());
722 /* The socket buffer is full. This isnt fatal,
725 this->ServerInstance->SE->WantWrite(this);
729 /* Fatal error, set write error and bail
731 this->SetWriteError(strerror(errno));
737 /* advance the queue */
739 this->sendq = this->sendq.substr(n_sent);
740 /* update the user's stats counters */
741 this->bytes_out += n_sent;
743 if (n_sent != old_sendq_length)
744 this->ServerInstance->SE->WantWrite(this);
751 ServerInstance->Log(DEBUG,"Exception in userrec::FlushWriteBuf()");
754 if (this->sendq.empty())
756 FOREACH_MOD(I_OnBufferFlushed,OnBufferFlushed(this));
760 void userrec::SetWriteError(const std::string &error)
764 // don't try to set the error twice, its already set take the first string.
765 if (this->WriteError.empty())
766 this->WriteError = error;
771 ServerInstance->Log(DEBUG,"Exception in userrec::SetWriteError()");
775 const char* userrec::GetWriteError()
777 return this->WriteError.c_str();
780 void userrec::Oper(const std::string &opertype)
784 this->modes[UM_OPERATOR] = 1;
785 this->WriteServ("MODE %s :+o", this->nick);
786 FOREACH_MOD(I_OnOper, OnOper(this, opertype));
787 ServerInstance->Log(DEFAULT,"OPER: %s!%s@%s opered as type: %s", this->nick, this->ident, this->host, opertype.c_str());
788 strlcpy(this->oper, opertype.c_str(), NICKMAX - 1);
789 ServerInstance->all_opers.push_back(this);
790 FOREACH_MOD(I_OnPostOper,OnPostOper(this, opertype));
795 ServerInstance->Log(DEBUG,"Exception in userrec::Oper()");
799 void userrec::UnOper()
805 // unset their oper type (what IS_OPER checks), and remove +o
807 this->modes[UM_OPERATOR] = 0;
809 // remove them from the opers list.
810 for (std::vector<userrec*>::iterator a = ServerInstance->all_opers.begin(); a < ServerInstance->all_opers.end(); a++)
814 ServerInstance->all_opers.erase(a);
823 ServerInstance->Log(DEBUG,"Exception in userrec::UnOper()");
827 void userrec::QuitUser(InspIRCd* Instance, userrec *user, const std::string &quitreason, const char* operreason)
830 Instance->GlobalCulls.AddItem(user, quitreason.c_str(), operreason);
833 /* adds or updates an entry in the whowas list */
834 void userrec::AddToWhoWas()
836 command_t* whowas_command = ServerInstance->Parser->GetHandler("WHOWAS");
839 std::deque<classbase*> params;
840 params.push_back(this);
841 whowas_command->HandleInternal(WHOWAS_ADD, params);
845 /* add a client connection to the sockets list */
846 void userrec::AddClient(InspIRCd* Instance, int socket, int port, bool iscached, int socketfamily, sockaddr* ip)
848 std::string tempnick = ConvToStr(socket) + "-unknown";
849 user_hash::iterator iter = Instance->clientlist->find(tempnick);
852 if (socketfamily == AF_INET6)
853 inet_ntop(AF_INET6, &((const sockaddr_in6*)ip)->sin6_addr, ipaddr, sizeof(ipaddr));
855 inet_ntop(AF_INET, &((const sockaddr_in*)ip)->sin_addr, ipaddr, sizeof(ipaddr));
857 inet_ntop(AF_INET, &((const sockaddr_in*)ip)->sin_addr, ipaddr, sizeof(ipaddr));
862 Instance->unregistered_count++;
866 * as these nicknames are 'RFC impossible', we can be sure nobody is going to be
867 * using one as a registered connection. As they are per fd, we can also safely assume
868 * that we wont have collisions. Therefore, if the nick exists in the list, its only
869 * used by a dead socket, erase the iterator so that the new client may reclaim it.
870 * this was probably the cause of 'server ignores me when i hammer it with reconnects'
871 * issue in earlier alphas/betas
873 if (iter != Instance->clientlist->end())
875 userrec* goner = iter->second;
877 Instance->clientlist->erase(iter);
880 New = new userrec(Instance);
881 (*(Instance->clientlist))[tempnick] = New;
883 strlcpy(New->nick,tempnick.c_str(),NICKMAX-1);
885 New->server = Instance->FindServerNamePtr(Instance->Config->ServerName);
886 /* We don't need range checking here, we KNOW 'unknown\0' will fit into the ident field. */
887 strcpy(New->ident, "unknown");
889 New->registered = REG_NONE;
890 New->signon = Instance->Time() + Instance->Config->dns_timeout;
893 New->SetSockAddr(socketfamily, ipaddr, port);
895 /* Smarter than your average bear^H^H^H^Hset of strlcpys. */
896 for (const char* temp = New->GetIPString(); *temp && j < 64; temp++, j++)
897 New->dhost[j] = New->host[j] = *temp;
898 New->dhost[j] = New->host[j] = 0;
900 Instance->AddLocalClone(New);
901 Instance->AddGlobalClone(New);
904 * First class check. We do this again in FullConnect after DNS is done, and NICK/USER is recieved.
905 * See my note down there for why this is required. DO NOT REMOVE. :) -- w00t
907 ConnectClass* i = New->GetClass();
910 New->pingmax = i->GetPingTime();
911 New->nping = Instance->Time() + i->GetPingTime() + Instance->Config->dns_timeout;
912 New->timeout = Instance->Time() + i->GetRegTimeout();
913 New->flood = i->GetFlood();
914 New->threshold = i->GetThreshold();
915 New->sendqmax = i->GetSendqMax();
916 New->recvqmax = i->GetRecvqMax();
918 Instance->local_users.push_back(New);
920 if ((Instance->local_users.size() > Instance->Config->SoftLimit) || (Instance->local_users.size() >= MAXCLIENTS))
922 Instance->WriteOpers("*** Warning: softlimit value has been reached: %d clients", Instance->Config->SoftLimit);
923 userrec::QuitUser(Instance, New,"No more connections allowed");
929 * this is done as a safety check to keep the file descriptors within range of fd_ref_table.
930 * its a pretty big but for the moment valid assumption:
931 * file descriptors are handed out starting at 0, and are recycled as theyre freed.
932 * therefore if there is ever an fd over 65535, 65536 clients must be connected to the
933 * irc server at once (or the irc server otherwise initiating this many connections, files etc)
934 * which for the time being is a physical impossibility (even the largest networks dont have more
935 * than about 10,000 users on ONE server!)
937 if ((unsigned int)socket >= MAX_DESCRIPTORS)
939 userrec::QuitUser(Instance, New, "Server is full");
943 New->exempt = (Instance->XLines->matches_exception(New) != NULL);
946 ZLine* r = Instance->XLines->matches_zline(ipaddr);
950 snprintf(reason,MAXBUF,"Z-Lined: %s",r->reason);
951 userrec::QuitUser(Instance, New, reason);
958 if (!Instance->SE->AddFd(New))
960 userrec::QuitUser(Instance, New, "Internal error handling connection");
965 /* NOTE: even if dns lookups are *off*, we still need to display this.
966 * BOPM and other stuff requires it.
968 New->WriteServ("NOTICE Auth :*** Looking up your hostname...");
971 unsigned long userrec::GlobalCloneCount()
973 clonemap::iterator x = ServerInstance->global_clones.find(this->GetIPString());
974 if (x != ServerInstance->global_clones.end())
980 unsigned long userrec::LocalCloneCount()
982 clonemap::iterator x = ServerInstance->local_clones.find(this->GetIPString());
983 if (x != ServerInstance->local_clones.end())
990 * Check class restrictions
992 void userrec::CheckClass()
994 ConnectClass* a = this->GetClass();
996 if ((!a) || (a->GetType() == CC_DENY))
998 userrec::QuitUser(ServerInstance, this, "Unauthorised connection");
1002 if ((!a->GetPass().empty()) && (!this->haspassed))
1004 userrec::QuitUser(ServerInstance, this, "Invalid password");
1008 if ((!a) || (a->GetType() == CC_DENY))
1010 userrec::QuitUser(ServerInstance, this,"Unauthorised connection");
1014 if ((a->GetMaxLocal()) && (this->LocalCloneCount() > a->GetMaxLocal()))
1016 userrec::QuitUser(ServerInstance, this, "No more connections allowed from your host via this connect class (local)");
1017 ServerInstance->WriteOpers("*** WARNING: maximum LOCAL connections (%ld) exceeded for IP %s", a->GetMaxLocal(), this->GetIPString());
1020 else if ((a->GetMaxGlobal()) && (this->GlobalCloneCount() > a->GetMaxGlobal()))
1022 userrec::QuitUser(ServerInstance, this, "No more connections allowed from your host via this connect class (global)");
1023 ServerInstance->WriteOpers("*** WARNING: maximum GLOBAL connections (%ld) exceeded for IP %s", a->GetMaxGlobal(), this->GetIPString());
1028 void userrec::FullConnect()
1030 ServerInstance->stats->statsConnects++;
1031 this->idle_lastmsg = ServerInstance->Time();
1034 * You may be thinking "wtf, we checked this in userrec::AddClient!" - and yes, we did, BUT.
1035 * At the time AddClient is called, we don't have a resolved host, by here we probably do - which
1036 * may put the user into a totally seperate class with different restrictions! so we *must* check again.
1037 * Don't remove this! -- w00t
1043 GLine* r = ServerInstance->XLines->matches_gline(this);
1048 char reason[MAXBUF];
1049 snprintf(reason,MAXBUF,"G-Lined: %s",r->reason);
1050 ServerInstance->GlobalCulls.AddItem(this, reason);
1054 KLine* n = ServerInstance->XLines->matches_kline(this);
1059 char reason[MAXBUF];
1060 snprintf(reason,MAXBUF,"K-Lined: %s",n->reason);
1061 ServerInstance->GlobalCulls.AddItem(this, reason);
1067 this->WriteServ("NOTICE Auth :Welcome to \002%s\002!",ServerInstance->Config->Network);
1068 this->WriteServ("001 %s :Welcome to the %s IRC Network %s!%s@%s",this->nick, ServerInstance->Config->Network, this->nick, this->ident, this->host);
1069 this->WriteServ("002 %s :Your host is %s, running version %s",this->nick,ServerInstance->Config->ServerName,VERSION);
1070 this->WriteServ("003 %s :This server was created %s %s", this->nick, __TIME__, __DATE__);
1071 this->WriteServ("004 %s %s %s %s %s %s", this->nick, ServerInstance->Config->ServerName, VERSION, ServerInstance->Modes->UserModeList().c_str(), ServerInstance->Modes->ChannelModeList().c_str(), ServerInstance->Modes->ParaModeList().c_str());
1073 ServerInstance->Config->Send005(this);
1077 /* Now registered */
1078 if (ServerInstance->unregistered_count)
1079 ServerInstance->unregistered_count--;
1081 /* Trigger LUSERS output, give modules a chance too */
1083 FOREACH_RESULT(I_OnPreCommand, OnPreCommand("LUSERS", NULL, 0, this, true, "LUSERS"));
1085 ServerInstance->CallCommandHandler("LUSERS", NULL, 0, this);
1088 * fix 3 by brain, move registered = 7 below these so that spurious modes and host
1089 * changes dont go out onto the network and produce 'fake direction'.
1091 FOREACH_MOD(I_OnUserConnect,OnUserConnect(this));
1093 this->registered = REG_ALL;
1095 FOREACH_MOD(I_OnPostConnect,OnPostConnect(this));
1097 ServerInstance->SNO->WriteToSnoMask('c',"Client connecting on port %d: %s!%s@%s [%s] [%s]", this->GetPort(), this->nick, this->ident, this->host, this->GetIPString(), this->fullname);
1100 /** userrec::UpdateNick()
1101 * re-allocates a nick in the user_hash after they change nicknames,
1102 * returns a pointer to the new user as it may have moved
1104 userrec* userrec::UpdateNickHash(const char* New)
1108 //user_hash::iterator newnick;
1109 user_hash::iterator oldnick = ServerInstance->clientlist->find(this->nick);
1111 if (!strcasecmp(this->nick,New))
1112 return oldnick->second;
1114 if (oldnick == ServerInstance->clientlist->end())
1115 return NULL; /* doesnt exist */
1117 userrec* olduser = oldnick->second;
1118 (*(ServerInstance->clientlist))[New] = olduser;
1119 ServerInstance->clientlist->erase(oldnick);
1125 ServerInstance->Log(DEBUG,"Exception in userrec::UpdateNickHash()");
1130 void userrec::InvalidateCache()
1132 /* Invalidate cache */
1133 if (cached_fullhost)
1134 free(cached_fullhost);
1136 free(cached_hostip);
1137 if (cached_makehost)
1138 free(cached_makehost);
1139 if (cached_fullrealhost)
1140 free(cached_fullrealhost);
1141 cached_fullhost = cached_hostip = cached_makehost = cached_fullrealhost = NULL;
1144 bool userrec::ForceNickChange(const char* newnick)
1150 this->InvalidateCache();
1152 FOREACH_RESULT(I_OnUserPreNick,OnUserPreNick(this, newnick));
1156 ServerInstance->stats->statsCollisions++;
1160 if (ServerInstance->XLines->matches_qline(newnick))
1162 ServerInstance->stats->statsCollisions++;
1166 if (this->registered == REG_ALL)
1168 const char* pars[1];
1170 std::string cmd = "NICK";
1171 return (ServerInstance->Parser->CallHandler(cmd, pars, 1, this) == CMD_SUCCESS);
1178 ServerInstance->Log(DEBUG,"Exception in userrec::ForceNickChange()");
1183 void userrec::SetSockAddr(int protocol_family, const char* ip, int port)
1185 switch (protocol_family)
1187 #ifdef SUPPORT_IP6LINKS
1190 sockaddr_in6* sin = new sockaddr_in6;
1191 sin->sin6_family = AF_INET6;
1192 sin->sin6_port = port;
1193 inet_pton(AF_INET6, ip, &sin->sin6_addr);
1194 this->ip = (sockaddr*)sin;
1200 sockaddr_in* sin = new sockaddr_in;
1201 sin->sin_family = AF_INET;
1202 sin->sin_port = port;
1203 inet_pton(AF_INET, ip, &sin->sin_addr);
1204 this->ip = (sockaddr*)sin;
1208 ServerInstance->Log(DEBUG,"Ut oh, I dont know protocol %d to be set on '%s'!", protocol_family, this->nick);
1213 int userrec::GetPort()
1215 if (this->ip == NULL)
1218 switch (this->GetProtocolFamily())
1220 #ifdef SUPPORT_IP6LINKS
1223 sockaddr_in6* sin = (sockaddr_in6*)this->ip;
1224 return sin->sin6_port;
1230 sockaddr_in* sin = (sockaddr_in*)this->ip;
1231 return sin->sin_port;
1240 int userrec::GetProtocolFamily()
1242 if (this->ip == NULL)
1245 sockaddr_in* sin = (sockaddr_in*)this->ip;
1246 return sin->sin_family;
1249 const char* userrec::GetIPString()
1251 static char buf[1024];
1253 if (this->ip == NULL)
1256 switch (this->GetProtocolFamily())
1258 #ifdef SUPPORT_IP6LINKS
1261 static char temp[1024];
1263 sockaddr_in6* sin = (sockaddr_in6*)this->ip;
1264 inet_ntop(sin->sin6_family, &sin->sin6_addr, buf, sizeof(buf));
1265 /* IP addresses starting with a : on irc are a Bad Thing (tm) */
1268 strlcpy(&temp[1], buf, sizeof(temp) - 1);
1278 sockaddr_in* sin = (sockaddr_in*)this->ip;
1279 inet_ntop(sin->sin_family, &sin->sin_addr, buf, sizeof(buf));
1289 const char* userrec::GetIPString(char* buf)
1291 if (this->ip == NULL)
1297 switch (this->GetProtocolFamily())
1299 #ifdef SUPPORT_IP6LINKS
1302 static char temp[1024];
1304 sockaddr_in6* sin = (sockaddr_in6*)this->ip;
1305 inet_ntop(sin->sin6_family, &sin->sin6_addr, buf, sizeof(buf));
1306 /* IP addresses starting with a : on irc are a Bad Thing (tm) */
1309 strlcpy(&temp[1], buf, sizeof(temp) - 1);
1311 strlcpy(buf, temp, sizeof(temp));
1319 sockaddr_in* sin = (sockaddr_in*)this->ip;
1320 inet_ntop(sin->sin_family, &sin->sin_addr, buf, sizeof(buf));
1331 /** NOTE: We cannot pass a const reference to this method.
1332 * The string is changed by the workings of the method,
1333 * so that if we pass const ref, we end up copying it to
1334 * something we can change anyway. Makes sense to just let
1335 * the compiler do that copy for us.
1337 void userrec::Write(std::string text)
1339 if ((this->fd < 0) || (this->fd > MAX_DESCRIPTORS))
1344 /* ServerInstance->Log(DEBUG,"<- %s", text.c_str());
1345 * WARNING: The above debug line is VERY loud, do NOT
1346 * enable it till we have a good way of filtering it
1347 * out of the logs (e.g. 1.2 would be good).
1349 text.append("\r\n");
1353 ServerInstance->Log(DEBUG,"Exception in userrec::Write() std::string::append");
1357 if (ServerInstance->Config->GetIOHook(this->GetPort()))
1361 ServerInstance->Config->GetIOHook(this->GetPort())->OnRawSocketWrite(this->fd, text.data(), text.length());
1363 catch (CoreException& modexcept)
1365 ServerInstance->Log(DEBUG, "%s threw an exception: %s", modexcept.GetSource(), modexcept.GetReason());
1370 this->AddWriteBuf(text);
1372 ServerInstance->stats->statsSent += text.length();
1373 this->ServerInstance->SE->WantWrite(this);
1378 void userrec::Write(const char *text, ...)
1381 char textbuffer[MAXBUF];
1383 va_start(argsPtr, text);
1384 vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1387 this->Write(std::string(textbuffer));
1390 void userrec::WriteServ(const std::string& text)
1392 char textbuffer[MAXBUF];
1394 snprintf(textbuffer,MAXBUF,":%s %s",ServerInstance->Config->ServerName,text.c_str());
1395 this->Write(std::string(textbuffer));
1399 * Same as Write(), except `text' is prefixed with `:server.name '.
1401 void userrec::WriteServ(const char* text, ...)
1404 char textbuffer[MAXBUF];
1406 va_start(argsPtr, text);
1407 vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1410 this->WriteServ(std::string(textbuffer));
1414 void userrec::WriteFrom(userrec *user, const std::string &text)
1418 snprintf(tb,MAXBUF,":%s %s",user->GetFullHost(),text.c_str());
1420 this->Write(std::string(tb));
1424 /* write text from an originating user to originating user */
1426 void userrec::WriteFrom(userrec *user, const char* text, ...)
1429 char textbuffer[MAXBUF];
1431 va_start(argsPtr, text);
1432 vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1435 this->WriteFrom(user, std::string(textbuffer));
1439 /* write text to an destination user from a source user (e.g. user privmsg) */
1441 void userrec::WriteTo(userrec *dest, const char *data, ...)
1443 char textbuffer[MAXBUF];
1446 va_start(argsPtr, data);
1447 vsnprintf(textbuffer, MAXBUF, data, argsPtr);
1450 this->WriteTo(dest, std::string(textbuffer));
1453 void userrec::WriteTo(userrec *dest, const std::string &data)
1455 dest->WriteFrom(this, data);
1459 void userrec::WriteCommon(const char* text, ...)
1461 char textbuffer[MAXBUF];
1464 if (this->registered != REG_ALL)
1467 va_start(argsPtr, text);
1468 vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1471 this->WriteCommon(std::string(textbuffer));
1474 void userrec::WriteCommon(const std::string &text)
1478 bool sent_to_at_least_one = false;
1481 if (this->registered != REG_ALL)
1486 /* We dont want to be doing this n times, just once */
1487 snprintf(tb,MAXBUF,":%s %s",this->GetFullHost(),text.c_str());
1488 std::string out = tb;
1490 for (UCListIter v = this->chans.begin(); v != this->chans.end(); v++)
1492 CUList* ulist = v->first->GetUsers();
1493 for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
1495 if ((IS_LOCAL(i->first)) && (already_sent[i->first->fd] != uniq_id))
1497 already_sent[i->first->fd] = uniq_id;
1498 i->first->Write(out);
1499 sent_to_at_least_one = true;
1505 * if the user was not in any channels, no users will receive the text. Make sure the user
1506 * receives their OWN message for WriteCommon
1508 if (!sent_to_at_least_one)
1510 this->Write(std::string(tb));
1516 ServerInstance->Log(DEBUG,"Exception in userrec::WriteCommon()");
1521 /* write a formatted string to all users who share at least one common
1522 * channel, NOT including the source user e.g. for use in QUIT
1525 void userrec::WriteCommonExcept(const char* text, ...)
1527 char textbuffer[MAXBUF];
1530 va_start(argsPtr, text);
1531 vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1534 this->WriteCommonExcept(std::string(textbuffer));
1537 void userrec::WriteCommonQuit(const std::string &normal_text, const std::string &oper_text)
1542 if (this->registered != REG_ALL)
1546 snprintf(tb1,MAXBUF,":%s QUIT :%s",this->GetFullHost(),normal_text.c_str());
1547 snprintf(tb2,MAXBUF,":%s QUIT :%s",this->GetFullHost(),oper_text.c_str());
1548 std::string out1 = tb1;
1549 std::string out2 = tb2;
1551 for (UCListIter v = this->chans.begin(); v != this->chans.end(); v++)
1553 CUList *ulist = v->first->GetUsers();
1554 for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
1556 if (this != i->first)
1558 if ((IS_LOCAL(i->first)) && (already_sent[i->first->fd] != uniq_id))
1560 already_sent[i->first->fd] = uniq_id;
1561 i->first->Write(IS_OPER(i->first) ? out2 : out1);
1568 void userrec::WriteCommonExcept(const std::string &text)
1573 if (this->registered != REG_ALL)
1577 snprintf(tb1,MAXBUF,":%s %s",this->GetFullHost(),text.c_str());
1580 for (UCListIter v = this->chans.begin(); v != this->chans.end(); v++)
1582 CUList *ulist = v->first->GetUsers();
1583 for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
1585 if (this != i->first)
1587 if ((IS_LOCAL(i->first)) && (already_sent[i->first->fd] != uniq_id))
1589 already_sent[i->first->fd] = uniq_id;
1590 i->first->Write(out1);
1598 void userrec::WriteWallOps(const std::string &text)
1600 if (!IS_OPER(this) && IS_LOCAL(this))
1603 std::string wallop = "WALLOPS :" + text;
1605 for (std::vector<userrec*>::const_iterator i = ServerInstance->local_users.begin(); i != ServerInstance->local_users.end(); i++)
1608 if ((IS_LOCAL(t)) && (t->modes[UM_WALLOPS]))
1609 this->WriteTo(t,wallop);
1613 void userrec::WriteWallOps(const char* text, ...)
1615 char textbuffer[MAXBUF];
1618 va_start(argsPtr, text);
1619 vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1622 this->WriteWallOps(std::string(textbuffer));
1625 /* return 0 or 1 depending if users u and u2 share one or more common channels
1626 * (used by QUIT, NICK etc which arent channel specific notices)
1628 * The old algorithm in 1.0 for this was relatively inefficient, iterating over
1629 * the first users channels then the second users channels within the outer loop,
1630 * therefore it was a maximum of x*y iterations (upon returning 0 and checking
1631 * all possible iterations). However this new function instead checks against the
1632 * channel's userlist in the inner loop which is a std::map<userrec*,userrec*>
1633 * and saves us time as we already know what pointer value we are after.
1634 * Don't quote me on the maths as i am not a mathematician or computer scientist,
1635 * but i believe this algorithm is now x+(log y) maximum iterations instead.
1637 bool userrec::SharesChannelWith(userrec *other)
1639 if ((!other) || (this->registered != REG_ALL) || (other->registered != REG_ALL))
1643 for (UCListIter i = this->chans.begin(); i != this->chans.end(); i++)
1645 /* Eliminate the inner loop (which used to be ~equal in size to the outer loop)
1646 * by replacing it with a map::find which *should* be more efficient
1648 if (i->first->HasUser(other))
1654 bool userrec::ChangeName(const char* gecos)
1656 if (!strcmp(gecos, this->fullname))
1662 FOREACH_RESULT(I_OnChangeLocalUserGECOS,OnChangeLocalUserGECOS(this,gecos));
1665 FOREACH_MOD(I_OnChangeName,OnChangeName(this,gecos));
1667 strlcpy(this->fullname,gecos,MAXGECOS+1);
1672 bool userrec::ChangeDisplayedHost(const char* host)
1674 if (!strcmp(host, this->dhost))
1680 FOREACH_RESULT(I_OnChangeLocalUserHost,OnChangeLocalUserHost(this,host));
1683 FOREACH_MOD(I_OnChangeHost,OnChangeHost(this,host));
1685 if (this->ServerInstance->Config->CycleHosts)
1686 this->WriteCommonExcept("QUIT :Changing hosts");
1688 /* Fix by Om: userrec::dhost is 65 long, this was truncating some long hosts */
1689 strlcpy(this->dhost,host,64);
1691 this->InvalidateCache();
1693 if (this->ServerInstance->Config->CycleHosts)
1695 for (UCListIter i = this->chans.begin(); i != this->chans.end(); i++)
1697 i->first->WriteAllExceptSender(this, false, 0, "JOIN %s", i->first->name);
1698 std::string n = this->ServerInstance->Modes->ModeString(this, i->first);
1700 i->first->WriteAllExceptSender(this, true, 0, "MODE %s +%s", i->first->name, n.c_str());
1705 this->WriteServ("396 %s %s :is now your displayed host",this->nick,this->dhost);
1710 bool userrec::ChangeIdent(const char* newident)
1712 if (!strcmp(newident, this->ident))
1715 if (this->ServerInstance->Config->CycleHosts)
1716 this->WriteCommonExcept("%s","QUIT :Changing ident");
1718 strlcpy(this->ident, newident, IDENTMAX+2);
1720 this->InvalidateCache();
1722 if (this->ServerInstance->Config->CycleHosts)
1724 for (UCListIter i = this->chans.begin(); i != this->chans.end(); i++)
1726 i->first->WriteAllExceptSender(this, false, 0, "JOIN %s", i->first->name);
1727 std::string n = this->ServerInstance->Modes->ModeString(this, i->first);
1729 i->first->WriteAllExceptSender(this, true, 0, "MODE %s +%s", i->first->name, n.c_str());
1736 void userrec::SendAll(const char* command, char* text, ...)
1738 char textbuffer[MAXBUF];
1739 char formatbuffer[MAXBUF];
1742 va_start(argsPtr, text);
1743 vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1746 snprintf(formatbuffer,MAXBUF,":%s %s $* :%s", this->GetFullHost(), command, textbuffer);
1747 std::string fmt = formatbuffer;
1749 for (std::vector<userrec*>::const_iterator i = ServerInstance->local_users.begin(); i != ServerInstance->local_users.end(); i++)
1756 std::string userrec::ChannelList(userrec* source)
1761 for (UCListIter i = this->chans.begin(); i != this->chans.end(); i++)
1763 /* If the target is the same as the sender, let them see all their channels.
1764 * If the channel is NOT private/secret OR the user shares a common channel
1765 * If the user is an oper, and the <options:operspywhois> option is set.
1767 if ((source == this) || (IS_OPER(source) && ServerInstance->Config->OperSpyWhois) || (((!i->first->modes[CM_PRIVATE]) && (!i->first->modes[CM_SECRET])) || (i->first->HasUser(source))))
1769 list.append(i->first->GetPrefixChar(this)).append(i->first->name).append(" ");
1776 ServerInstance->Log(DEBUG,"Exception in userrec::ChannelList()");
1781 void userrec::SplitChanList(userrec* dest, const std::string &cl)
1784 std::ostringstream prefix;
1785 std::string::size_type start, pos, length;
1789 prefix << this->nick << " " << dest->nick << " :";
1790 line = prefix.str();
1791 int namelen = strlen(ServerInstance->Config->ServerName) + 6;
1793 for (start = 0; (pos = cl.find(' ', start)) != std::string::npos; start = pos+1)
1795 length = (pos == std::string::npos) ? cl.length() : pos;
1797 if (line.length() + namelen + length - start > 510)
1799 ServerInstance->SendWhoisLine(this, dest, 319, "%s", line.c_str());
1800 line = prefix.str();
1803 if(pos == std::string::npos)
1805 line.append(cl.substr(start, length - start));
1810 line.append(cl.substr(start, length - start + 1));
1816 ServerInstance->SendWhoisLine(this, dest, 319, "%s", line.c_str());
1822 ServerInstance->Log(DEBUG,"Exception in userrec::SplitChanList()");
1827 /* looks up a users password for their connection class (<ALLOW>/<DENY> tags)
1828 * NOTE: If the <ALLOW> or <DENY> tag specifies an ip, and this user resolves,
1829 * then their ip will be taken as 'priority' anyway, so for example,
1830 * <connect allow="127.0.0.1"> will match joe!bloggs@localhost
1832 ConnectClass* userrec::GetClass()
1834 for (ClassVector::iterator i = ServerInstance->Config->Classes.begin(); i != ServerInstance->Config->Classes.end(); i++)
1836 if (((match(this->GetIPString(),i->GetHost().c_str(),true)) || (match(this->host,i->GetHost().c_str()))))
1840 if (this->GetPort() == i->GetPort())
1852 void userrec::PurgeEmptyChannels()
1854 std::vector<chanrec*> to_delete;
1856 // firstly decrement the count on each channel
1857 for (UCListIter f = this->chans.begin(); f != this->chans.end(); f++)
1859 f->first->RemoveAllPrefixes(this);
1860 if (f->first->DelUser(this) == 0)
1862 /* No users left in here, mark it for deletion */
1865 to_delete.push_back(f->first);
1869 ServerInstance->Log(DEBUG,"Exception in userrec::PurgeEmptyChannels to_delete.push_back()");
1874 for (std::vector<chanrec*>::iterator n = to_delete.begin(); n != to_delete.end(); n++)
1876 chanrec* thischan = *n;
1877 chan_hash::iterator i2 = ServerInstance->chanlist->find(thischan->name);
1878 if (i2 != ServerInstance->chanlist->end())
1880 FOREACH_MOD(I_OnChannelDelete,OnChannelDelete(i2->second));
1882 ServerInstance->chanlist->erase(i2);
1883 this->chans.erase(*n);
1890 void userrec::ShowMOTD()
1892 if (!ServerInstance->Config->MOTD.size())
1894 this->WriteServ("422 %s :Message of the day file is missing.",this->nick);
1897 this->WriteServ("375 %s :%s message of the day", this->nick, ServerInstance->Config->ServerName);
1899 for (file_cache::iterator i = ServerInstance->Config->MOTD.begin(); i != ServerInstance->Config->MOTD.end(); i++)
1900 this->WriteServ("372 %s :- %s",this->nick,i->c_str());
1902 this->WriteServ("376 %s :End of message of the day.", this->nick);
1905 void userrec::ShowRULES()
1907 if (!ServerInstance->Config->RULES.size())
1909 this->WriteServ("NOTICE %s :Rules file is missing.",this->nick);
1912 this->WriteServ("NOTICE %s :%s rules",this->nick,ServerInstance->Config->ServerName);
1914 for (file_cache::iterator i = ServerInstance->Config->RULES.begin(); i != ServerInstance->Config->RULES.end(); i++)
1915 this->WriteServ("NOTICE %s :%s",this->nick,i->c_str());
1917 this->WriteServ("NOTICE %s :End of %s rules.",this->nick,ServerInstance->Config->ServerName);
1920 void userrec::HandleEvent(EventType et, int errornum)
1922 /* WARNING: May delete this user! */
1923 int thisfd = this->GetFd();
1930 ServerInstance->ProcessUser(this);
1933 this->FlushWriteBuf();
1936 /** This should be safe, but dont DARE do anything after it -- Brain */
1937 this->SetWriteError(errornum ? strerror(errornum) : "EOF from client");
1943 ServerInstance->Log(DEBUG,"Exception in userrec::HandleEvent intercepted");
1946 /* If the user has raised an error whilst being processed, quit them now we're safe to */
1947 if ((ServerInstance->SE->GetRef(thisfd) == this))
1949 if (!WriteError.empty())
1951 userrec::QuitUser(ServerInstance, this, GetWriteError());
1956 void userrec::SetOperQuit(const std::string &oquit)
1961 operquit = strdup(oquit.c_str());
1964 const char* userrec::GetOperQuit()
1966 return operquit ? operquit : "";
1977 bool VisData::VisibleTo(userrec* user)