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;
344 memset(modes,0,sizeof(modes));
345 memset(snomasks,0,sizeof(snomasks));
346 /* Invalidate cache */
347 operquit = cached_fullhost = cached_hostip = cached_makehost = cached_fullrealhost = NULL;
352 this->InvalidateCache();
353 this->DecrementModes();
358 clonemap::iterator x = ServerInstance->local_clones.find(this->GetIPString());
359 if (x != ServerInstance->local_clones.end())
364 ServerInstance->local_clones.erase(x);
368 clonemap::iterator y = ServerInstance->global_clones.find(this->GetIPString());
369 if (y != ServerInstance->global_clones.end())
374 ServerInstance->global_clones.erase(y);
378 if (this->GetProtocolFamily() == AF_INET)
380 delete (sockaddr_in*)ip;
382 #ifdef SUPPORT_IP6LINKS
385 delete (sockaddr_in6*)ip;
391 char* userrec::MakeHost()
393 if (this->cached_makehost)
394 return this->cached_makehost;
397 /* This is much faster than snprintf */
399 for(char* n = ident; *n; n++)
402 for(char* n = host; *n; n++)
406 this->cached_makehost = strdup(nhost);
408 return this->cached_makehost;
411 char* userrec::MakeHostIP()
413 if (this->cached_hostip)
414 return this->cached_hostip;
417 /* This is much faster than snprintf */
419 for(char* n = ident; *n; n++)
422 for(const char* n = this->GetIPString(); *n; n++)
426 this->cached_hostip = strdup(ihost);
428 return this->cached_hostip;
431 void userrec::CloseSocket()
433 shutdown(this->fd,2);
437 char* userrec::GetFullHost()
439 if (this->cached_fullhost)
440 return this->cached_fullhost;
444 for(char* n = nick; *n; n++)
447 for(char* n = ident; *n; n++)
450 for(char* n = dhost; *n; n++)
454 this->cached_fullhost = strdup(result);
456 return this->cached_fullhost;
459 char* userrec::MakeWildHost()
461 static char nresult[MAXBUF];
463 *t++ = '*'; *t++ = '!';
464 *t++ = '*'; *t++ = '@';
465 for(char* n = dhost; *n; n++)
471 int userrec::ReadData(void* buffer, size_t size)
475 return read(this->fd, buffer, size);
482 char* userrec::GetFullRealHost()
484 if (this->cached_fullrealhost)
485 return this->cached_fullrealhost;
487 char fresult[MAXBUF];
489 for(char* n = nick; *n; n++)
492 for(char* n = ident; *n; n++)
495 for(char* n = host; *n; n++)
499 this->cached_fullrealhost = strdup(fresult);
501 return this->cached_fullrealhost;
504 bool userrec::IsInvited(const irc::string &channel)
506 for (InvitedList::iterator i = invites.begin(); i != invites.end(); i++)
516 InvitedList* userrec::GetInviteList()
521 void userrec::InviteTo(const irc::string &channel)
523 invites.push_back(channel);
526 void userrec::RemoveInvite(const irc::string &channel)
528 for (InvitedList::iterator i = invites.begin(); i != invites.end(); i++)
538 bool userrec::HasPermission(const std::string &command)
545 * users on remote servers can completely bypass all permissions based checks.
546 * This prevents desyncs when one server has different type/class tags to another.
547 * That having been said, this does open things up to the possibility of source changes
548 * allowing remote kills, etc - but if they have access to the src, they most likely have
549 * access to the conf - so it's an end to a means either way.
554 // are they even an oper at all?
557 opertype_t::iterator iter_opertype = ServerInstance->Config->opertypes.find(this->oper);
558 if (iter_opertype != ServerInstance->Config->opertypes.end())
560 char* Classes = strdup(iter_opertype->second);
561 char* myclass = strtok_r(Classes," ",&savept);
564 operclass_t::iterator iter_operclass = ServerInstance->Config->operclass.find(myclass);
565 if (iter_operclass != ServerInstance->Config->operclass.end())
567 char* CommandList = strdup(iter_operclass->second);
568 mycmd = strtok_r(CommandList," ",&savept2);
571 if ((!strcasecmp(mycmd,command.c_str())) || (*mycmd == '*'))
577 mycmd = strtok_r(NULL," ",&savept2);
581 myclass = strtok_r(NULL," ",&savept);
589 /** NOTE: We cannot pass a const reference to this method.
590 * The string is changed by the workings of the method,
591 * so that if we pass const ref, we end up copying it to
592 * something we can change anyway. Makes sense to just let
593 * the compiler do that copy for us.
595 bool userrec::AddBuffer(std::string a)
599 std::string::size_type i = a.rfind('\r');
601 while (i != std::string::npos)
610 if (recvq.length() > (unsigned)this->recvqmax)
612 this->SetWriteError("RecvQ exceeded");
613 ServerInstance->WriteOpers("*** User %s RecvQ of %d exceeds connect class maximum of %d",this->nick,recvq.length(),this->recvqmax);
622 ServerInstance->Log(DEBUG,"Exception in userrec::AddBuffer()");
627 bool userrec::BufferIsReady()
629 return (recvq.find('\n') != std::string::npos);
632 void userrec::ClearBuffer()
637 std::string userrec::GetBuffer()
644 /* Strip any leading \r or \n off the string.
645 * Usually there are only one or two of these,
646 * so its is computationally cheap to do.
648 while ((*recvq.begin() == '\r') || (*recvq.begin() == '\n'))
649 recvq.erase(recvq.begin());
651 for (std::string::iterator x = recvq.begin(); x != recvq.end(); x++)
653 /* Find the first complete line, return it as the
654 * result, and leave the recvq as whats left
658 std::string ret = std::string(recvq.begin(), x);
659 recvq.erase(recvq.begin(), x + 1);
668 ServerInstance->Log(DEBUG,"Exception in userrec::GetBuffer()");
673 void userrec::AddWriteBuf(const std::string &data)
675 if (*this->GetWriteError())
678 if (sendq.length() + data.length() > (unsigned)this->sendqmax)
681 * Fix by brain - Set the error text BEFORE calling writeopers, because
682 * if we dont it'll recursively call here over and over again trying
683 * to repeatedly add the text to the sendq!
685 this->SetWriteError("SendQ exceeded");
686 ServerInstance->WriteOpers("*** User %s SendQ of %d exceeds connect class maximum of %d",this->nick,sendq.length() + data.length(),this->sendqmax);
692 if (data.length() > 512)
693 sendq.append(data.substr(0,510)).append("\r\n");
699 this->SetWriteError("SendQ exceeded");
700 ServerInstance->WriteOpers("*** User %s SendQ got an exception",this->nick);
704 // send AS MUCH OF THE USERS SENDQ as we are able to (might not be all of it)
705 void userrec::FlushWriteBuf()
709 if ((this->fd == FD_MAGIC_NUMBER) || (*this->GetWriteError()))
713 if ((sendq.length()) && (this->fd != FD_MAGIC_NUMBER))
715 int old_sendq_length = sendq.length();
716 int n_sent = write(this->fd, this->sendq.data(), this->sendq.length());
721 /* The socket buffer is full. This isnt fatal,
724 this->ServerInstance->SE->WantWrite(this);
728 /* Fatal error, set write error and bail
730 this->SetWriteError(strerror(errno));
736 /* advance the queue */
738 this->sendq = this->sendq.substr(n_sent);
739 /* update the user's stats counters */
740 this->bytes_out += n_sent;
742 if (n_sent != old_sendq_length)
743 this->ServerInstance->SE->WantWrite(this);
750 ServerInstance->Log(DEBUG,"Exception in userrec::FlushWriteBuf()");
753 if (this->sendq.empty())
755 FOREACH_MOD(I_OnBufferFlushed,OnBufferFlushed(this));
759 void userrec::SetWriteError(const std::string &error)
763 // don't try to set the error twice, its already set take the first string.
764 if (this->WriteError.empty())
765 this->WriteError = error;
770 ServerInstance->Log(DEBUG,"Exception in userrec::SetWriteError()");
774 const char* userrec::GetWriteError()
776 return this->WriteError.c_str();
779 void userrec::Oper(const std::string &opertype)
783 this->modes[UM_OPERATOR] = 1;
784 this->WriteServ("MODE %s :+o", this->nick);
785 FOREACH_MOD(I_OnOper, OnOper(this, opertype));
786 ServerInstance->Log(DEFAULT,"OPER: %s!%s@%s opered as type: %s", this->nick, this->ident, this->host, opertype.c_str());
787 strlcpy(this->oper, opertype.c_str(), NICKMAX - 1);
788 ServerInstance->all_opers.push_back(this);
789 FOREACH_MOD(I_OnPostOper,OnPostOper(this, opertype));
794 ServerInstance->Log(DEBUG,"Exception in userrec::Oper()");
798 void userrec::UnOper()
805 this->modes[UM_OPERATOR] = 0;
806 for (std::vector<userrec*>::iterator a = ServerInstance->all_opers.begin(); a < ServerInstance->all_opers.end(); a++)
810 ServerInstance->all_opers.erase(a);
819 ServerInstance->Log(DEBUG,"Exception in userrec::UnOper()");
823 void userrec::QuitUser(InspIRCd* Instance, userrec *user, const std::string &quitreason, const char* operreason)
826 Instance->GlobalCulls.AddItem(user, quitreason.c_str(), operreason);
829 /* adds or updates an entry in the whowas list */
830 void userrec::AddToWhoWas()
832 command_t* whowas_command = ServerInstance->Parser->GetHandler("WHOWAS");
835 std::deque<classbase*> params;
836 params.push_back(this);
837 whowas_command->HandleInternal(WHOWAS_ADD, params);
841 /* add a client connection to the sockets list */
842 void userrec::AddClient(InspIRCd* Instance, int socket, int port, bool iscached, int socketfamily, sockaddr* ip)
844 std::string tempnick = ConvToStr(socket) + "-unknown";
845 user_hash::iterator iter = Instance->clientlist->find(tempnick);
848 if (socketfamily == AF_INET6)
849 inet_ntop(AF_INET6, &((const sockaddr_in6*)ip)->sin6_addr, ipaddr, sizeof(ipaddr));
851 inet_ntop(AF_INET, &((const sockaddr_in*)ip)->sin_addr, ipaddr, sizeof(ipaddr));
853 inet_ntop(AF_INET, &((const sockaddr_in*)ip)->sin_addr, ipaddr, sizeof(ipaddr));
858 Instance->unregistered_count++;
862 * as these nicknames are 'RFC impossible', we can be sure nobody is going to be
863 * using one as a registered connection. As they are per fd, we can also safely assume
864 * that we wont have collisions. Therefore, if the nick exists in the list, its only
865 * used by a dead socket, erase the iterator so that the new client may reclaim it.
866 * this was probably the cause of 'server ignores me when i hammer it with reconnects'
867 * issue in earlier alphas/betas
869 if (iter != Instance->clientlist->end())
871 userrec* goner = iter->second;
873 Instance->clientlist->erase(iter);
876 New = new userrec(Instance);
877 (*(Instance->clientlist))[tempnick] = New;
879 strlcpy(New->nick,tempnick.c_str(),NICKMAX-1);
881 New->server = Instance->FindServerNamePtr(Instance->Config->ServerName);
882 /* We don't need range checking here, we KNOW 'unknown\0' will fit into the ident field. */
883 strcpy(New->ident, "unknown");
885 New->registered = REG_NONE;
886 New->signon = Instance->Time() + Instance->Config->dns_timeout;
889 New->SetSockAddr(socketfamily, ipaddr, port);
891 /* Smarter than your average bear^H^H^H^Hset of strlcpys. */
892 for (const char* temp = New->GetIPString(); *temp && j < 64; temp++, j++)
893 New->dhost[j] = New->host[j] = *temp;
894 New->dhost[j] = New->host[j] = 0;
896 Instance->AddLocalClone(New);
897 Instance->AddGlobalClone(New);
899 ConnectClass* i = New->GetClass();
901 if ((!i) || (i->GetType() == CC_DENY))
903 userrec::QuitUser(Instance, New,"Unauthorised connection");
907 New->pingmax = i->GetPingTime();
908 New->nping = Instance->Time() + i->GetPingTime() + Instance->Config->dns_timeout;
909 New->timeout = Instance->Time() + i->GetRegTimeout();
910 New->flood = i->GetFlood();
911 New->threshold = i->GetThreshold();
912 New->sendqmax = i->GetSendqMax();
913 New->recvqmax = i->GetRecvqMax();
915 Instance->local_users.push_back(New);
917 if ((Instance->local_users.size() > Instance->Config->SoftLimit) || (Instance->local_users.size() >= MAXCLIENTS))
919 Instance->WriteOpers("*** Warning: softlimit value has been reached: %d clients", Instance->Config->SoftLimit);
920 userrec::QuitUser(Instance, New,"No more connections allowed");
926 * this is done as a safety check to keep the file descriptors within range of fd_ref_table.
927 * its a pretty big but for the moment valid assumption:
928 * file descriptors are handed out starting at 0, and are recycled as theyre freed.
929 * therefore if there is ever an fd over 65535, 65536 clients must be connected to the
930 * irc server at once (or the irc server otherwise initiating this many connections, files etc)
931 * which for the time being is a physical impossibility (even the largest networks dont have more
932 * than about 10,000 users on ONE server!)
934 if ((unsigned int)socket >= MAX_DESCRIPTORS)
936 userrec::QuitUser(Instance, New, "Server is full");
940 New->exempt = (Instance->XLines->matches_exception(New) != NULL);
943 ZLine* r = Instance->XLines->matches_zline(ipaddr);
947 snprintf(reason,MAXBUF,"Z-Lined: %s",r->reason);
948 userrec::QuitUser(Instance, New, reason);
955 if (!Instance->SE->AddFd(New))
957 userrec::QuitUser(Instance, New, "Internal error handling connection");
962 /* NOTE: even if dns lookups are *off*, we still need to display this.
963 * BOPM and other stuff requires it.
965 New->WriteServ("NOTICE Auth :*** Looking up your hostname...");
968 unsigned long userrec::GlobalCloneCount()
970 clonemap::iterator x = ServerInstance->global_clones.find(this->GetIPString());
971 if (x != ServerInstance->global_clones.end())
977 unsigned long userrec::LocalCloneCount()
979 clonemap::iterator x = ServerInstance->local_clones.find(this->GetIPString());
980 if (x != ServerInstance->local_clones.end())
986 void userrec::FullConnect()
988 ServerInstance->stats->statsConnects++;
989 this->idle_lastmsg = ServerInstance->Time();
991 ConnectClass* a = this->GetClass();
993 if ((!a) || (a->GetType() == CC_DENY))
996 ServerInstance->GlobalCulls.AddItem(this,"Unauthorised connection");
1000 if ((!a->GetPass().empty()) && (!this->haspassed))
1003 ServerInstance->GlobalCulls.AddItem(this,"Invalid password");
1007 if (this->LocalCloneCount() > a->GetMaxLocal())
1010 ServerInstance->GlobalCulls.AddItem(this, "No more connections allowed from your host via this connect class (local)");
1011 ServerInstance->WriteOpers("*** WARNING: maximum LOCAL connections (%ld) exceeded for IP %s", a->GetMaxLocal(), this->GetIPString());
1014 else if (this->GlobalCloneCount() > a->GetMaxGlobal())
1017 ServerInstance->GlobalCulls.AddItem(this, "No more connections allowed from your host via this connect class (global)");
1018 ServerInstance->WriteOpers("*** WARNING: maximum GLOBAL connections (%ld) exceeded for IP %s",a->GetMaxGlobal(), this->GetIPString());
1024 GLine* r = ServerInstance->XLines->matches_gline(this);
1029 char reason[MAXBUF];
1030 snprintf(reason,MAXBUF,"G-Lined: %s",r->reason);
1031 ServerInstance->GlobalCulls.AddItem(this, reason);
1035 KLine* n = ServerInstance->XLines->matches_kline(this);
1040 char reason[MAXBUF];
1041 snprintf(reason,MAXBUF,"K-Lined: %s",n->reason);
1042 ServerInstance->GlobalCulls.AddItem(this, reason);
1048 this->WriteServ("NOTICE Auth :Welcome to \002%s\002!",ServerInstance->Config->Network);
1049 this->WriteServ("001 %s :Welcome to the %s IRC Network %s!%s@%s",this->nick, ServerInstance->Config->Network, this->nick, this->ident, this->host);
1050 this->WriteServ("002 %s :Your host is %s, running version %s",this->nick,ServerInstance->Config->ServerName,VERSION);
1051 this->WriteServ("003 %s :This server was created %s %s", this->nick, __TIME__, __DATE__);
1052 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());
1054 ServerInstance->Config->Send005(this);
1058 /* Now registered */
1059 if (ServerInstance->unregistered_count)
1060 ServerInstance->unregistered_count--;
1063 * fix 3 by brain, move registered = 7 below these so that spurious modes and host
1064 * changes dont go out onto the network and produce 'fake direction'.
1066 FOREACH_MOD(I_OnUserConnect,OnUserConnect(this));
1068 this->registered = REG_ALL;
1070 FOREACH_MOD(I_OnPostConnect,OnPostConnect(this));
1072 ServerInstance->SNO->WriteToSnoMask('c',"Client connecting on port %d: %s!%s@%s [%s]", this->GetPort(), this->nick, this->ident, this->host, this->GetIPString());
1075 /** userrec::UpdateNick()
1076 * re-allocates a nick in the user_hash after they change nicknames,
1077 * returns a pointer to the new user as it may have moved
1079 userrec* userrec::UpdateNickHash(const char* New)
1083 //user_hash::iterator newnick;
1084 user_hash::iterator oldnick = ServerInstance->clientlist->find(this->nick);
1086 if (!strcasecmp(this->nick,New))
1087 return oldnick->second;
1089 if (oldnick == ServerInstance->clientlist->end())
1090 return NULL; /* doesnt exist */
1092 userrec* olduser = oldnick->second;
1093 (*(ServerInstance->clientlist))[New] = olduser;
1094 ServerInstance->clientlist->erase(oldnick);
1100 ServerInstance->Log(DEBUG,"Exception in userrec::UpdateNickHash()");
1105 void userrec::InvalidateCache()
1107 /* Invalidate cache */
1108 if (cached_fullhost)
1109 free(cached_fullhost);
1111 free(cached_hostip);
1112 if (cached_makehost)
1113 free(cached_makehost);
1114 if (cached_fullrealhost)
1115 free(cached_fullrealhost);
1116 cached_fullhost = cached_hostip = cached_makehost = cached_fullrealhost = NULL;
1119 bool userrec::ForceNickChange(const char* newnick)
1125 this->InvalidateCache();
1127 FOREACH_RESULT(I_OnUserPreNick,OnUserPreNick(this, newnick));
1131 ServerInstance->stats->statsCollisions++;
1135 if (ServerInstance->XLines->matches_qline(newnick))
1137 ServerInstance->stats->statsCollisions++;
1141 if (this->registered == REG_ALL)
1143 const char* pars[1];
1145 std::string cmd = "NICK";
1146 return (ServerInstance->Parser->CallHandler(cmd, pars, 1, this) == CMD_SUCCESS);
1153 ServerInstance->Log(DEBUG,"Exception in userrec::ForceNickChange()");
1158 void userrec::SetSockAddr(int protocol_family, const char* ip, int port)
1160 switch (protocol_family)
1162 #ifdef SUPPORT_IP6LINKS
1165 sockaddr_in6* sin = new sockaddr_in6;
1166 sin->sin6_family = AF_INET6;
1167 sin->sin6_port = port;
1168 inet_pton(AF_INET6, ip, &sin->sin6_addr);
1169 this->ip = (sockaddr*)sin;
1175 sockaddr_in* sin = new sockaddr_in;
1176 sin->sin_family = AF_INET;
1177 sin->sin_port = port;
1178 inet_pton(AF_INET, ip, &sin->sin_addr);
1179 this->ip = (sockaddr*)sin;
1183 ServerInstance->Log(DEBUG,"Ut oh, I dont know protocol %d to be set on '%s'!", protocol_family, this->nick);
1188 int userrec::GetPort()
1190 if (this->ip == NULL)
1193 switch (this->GetProtocolFamily())
1195 #ifdef SUPPORT_IP6LINKS
1198 sockaddr_in6* sin = (sockaddr_in6*)this->ip;
1199 return sin->sin6_port;
1205 sockaddr_in* sin = (sockaddr_in*)this->ip;
1206 return sin->sin_port;
1215 int userrec::GetProtocolFamily()
1217 if (this->ip == NULL)
1220 sockaddr_in* sin = (sockaddr_in*)this->ip;
1221 return sin->sin_family;
1224 const char* userrec::GetIPString()
1226 static char buf[1024];
1228 if (this->ip == NULL)
1231 switch (this->GetProtocolFamily())
1233 #ifdef SUPPORT_IP6LINKS
1236 static char temp[1024];
1238 sockaddr_in6* sin = (sockaddr_in6*)this->ip;
1239 inet_ntop(sin->sin6_family, &sin->sin6_addr, buf, sizeof(buf));
1240 /* IP addresses starting with a : on irc are a Bad Thing (tm) */
1243 strlcpy(&temp[1], buf, sizeof(temp) - 1);
1253 sockaddr_in* sin = (sockaddr_in*)this->ip;
1254 inet_ntop(sin->sin_family, &sin->sin_addr, buf, sizeof(buf));
1264 const char* userrec::GetIPString(char* buf)
1266 if (this->ip == NULL)
1272 switch (this->GetProtocolFamily())
1274 #ifdef SUPPORT_IP6LINKS
1277 static char temp[1024];
1279 sockaddr_in6* sin = (sockaddr_in6*)this->ip;
1280 inet_ntop(sin->sin6_family, &sin->sin6_addr, buf, sizeof(buf));
1281 /* IP addresses starting with a : on irc are a Bad Thing (tm) */
1284 strlcpy(&temp[1], buf, sizeof(temp) - 1);
1286 strlcpy(buf, temp, sizeof(temp));
1294 sockaddr_in* sin = (sockaddr_in*)this->ip;
1295 inet_ntop(sin->sin_family, &sin->sin_addr, buf, sizeof(buf));
1306 /** NOTE: We cannot pass a const reference to this method.
1307 * The string is changed by the workings of the method,
1308 * so that if we pass const ref, we end up copying it to
1309 * something we can change anyway. Makes sense to just let
1310 * the compiler do that copy for us.
1312 void userrec::Write(std::string text)
1314 if ((this->fd < 0) || (this->fd > MAX_DESCRIPTORS))
1319 /* ServerInstance->Log(DEBUG,"<- %s", text.c_str());
1320 * WARNING: The above debug line is VERY loud, do NOT
1321 * enable it till we have a good way of filtering it
1322 * out of the logs (e.g. 1.2 would be good).
1324 text.append("\r\n");
1328 ServerInstance->Log(DEBUG,"Exception in userrec::Write() std::string::append");
1332 if (ServerInstance->Config->GetIOHook(this->GetPort()))
1336 ServerInstance->Config->GetIOHook(this->GetPort())->OnRawSocketWrite(this->fd, text.data(), text.length());
1338 catch (CoreException& modexcept)
1340 ServerInstance->Log(DEBUG, "%s threw an exception: %s", modexcept.GetSource(), modexcept.GetReason());
1345 this->AddWriteBuf(text);
1347 ServerInstance->stats->statsSent += text.length();
1348 this->ServerInstance->SE->WantWrite(this);
1353 void userrec::Write(const char *text, ...)
1356 char textbuffer[MAXBUF];
1358 va_start(argsPtr, text);
1359 vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1362 this->Write(std::string(textbuffer));
1365 void userrec::WriteServ(const std::string& text)
1367 char textbuffer[MAXBUF];
1369 snprintf(textbuffer,MAXBUF,":%s %s",ServerInstance->Config->ServerName,text.c_str());
1370 this->Write(std::string(textbuffer));
1374 * Same as Write(), except `text' is prefixed with `:server.name '.
1376 void userrec::WriteServ(const char* text, ...)
1379 char textbuffer[MAXBUF];
1381 va_start(argsPtr, text);
1382 vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1385 this->WriteServ(std::string(textbuffer));
1389 void userrec::WriteFrom(userrec *user, const std::string &text)
1393 snprintf(tb,MAXBUF,":%s %s",user->GetFullHost(),text.c_str());
1395 this->Write(std::string(tb));
1399 /* write text from an originating user to originating user */
1401 void userrec::WriteFrom(userrec *user, const char* text, ...)
1404 char textbuffer[MAXBUF];
1406 va_start(argsPtr, text);
1407 vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1410 this->WriteFrom(user, std::string(textbuffer));
1414 /* write text to an destination user from a source user (e.g. user privmsg) */
1416 void userrec::WriteTo(userrec *dest, const char *data, ...)
1418 char textbuffer[MAXBUF];
1421 va_start(argsPtr, data);
1422 vsnprintf(textbuffer, MAXBUF, data, argsPtr);
1425 this->WriteTo(dest, std::string(textbuffer));
1428 void userrec::WriteTo(userrec *dest, const std::string &data)
1430 dest->WriteFrom(this, data);
1434 void userrec::WriteCommon(const char* text, ...)
1436 char textbuffer[MAXBUF];
1439 if (this->registered != REG_ALL)
1442 va_start(argsPtr, text);
1443 vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1446 this->WriteCommon(std::string(textbuffer));
1449 void userrec::WriteCommon(const std::string &text)
1453 bool sent_to_at_least_one = false;
1456 if (this->registered != REG_ALL)
1461 /* We dont want to be doing this n times, just once */
1462 snprintf(tb,MAXBUF,":%s %s",this->GetFullHost(),text.c_str());
1463 std::string out = tb;
1465 for (UCListIter v = this->chans.begin(); v != this->chans.end(); v++)
1467 CUList* ulist = v->first->GetUsers();
1468 for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
1470 if ((IS_LOCAL(i->second)) && (already_sent[i->second->fd] != uniq_id))
1472 already_sent[i->second->fd] = uniq_id;
1473 i->second->Write(out);
1474 sent_to_at_least_one = true;
1480 * if the user was not in any channels, no users will receive the text. Make sure the user
1481 * receives their OWN message for WriteCommon
1483 if (!sent_to_at_least_one)
1485 this->Write(std::string(tb));
1491 ServerInstance->Log(DEBUG,"Exception in userrec::WriteCommon()");
1496 /* write a formatted string to all users who share at least one common
1497 * channel, NOT including the source user e.g. for use in QUIT
1500 void userrec::WriteCommonExcept(const char* text, ...)
1502 char textbuffer[MAXBUF];
1505 va_start(argsPtr, text);
1506 vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1509 this->WriteCommonExcept(std::string(textbuffer));
1512 void userrec::WriteCommonQuit(const std::string &normal_text, const std::string &oper_text)
1517 if (this->registered != REG_ALL)
1521 snprintf(tb1,MAXBUF,":%s QUIT :%s",this->GetFullHost(),normal_text.c_str());
1522 snprintf(tb2,MAXBUF,":%s QUIT :%s",this->GetFullHost(),oper_text.c_str());
1523 std::string out1 = tb1;
1524 std::string out2 = tb2;
1526 for (UCListIter v = this->chans.begin(); v != this->chans.end(); v++)
1528 CUList *ulist = v->first->GetUsers();
1529 for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
1531 if (this != i->second)
1533 if ((IS_LOCAL(i->second)) && (already_sent[i->second->fd] != uniq_id))
1535 already_sent[i->second->fd] = uniq_id;
1536 i->second->Write(*i->second->oper ? out2 : out1);
1543 void userrec::WriteCommonExcept(const std::string &text)
1548 if (this->registered != REG_ALL)
1552 snprintf(tb1,MAXBUF,":%s %s",this->GetFullHost(),text.c_str());
1555 for (UCListIter v = this->chans.begin(); v != this->chans.end(); v++)
1557 CUList *ulist = v->first->GetUsers();
1558 for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
1560 if (this != i->second)
1562 if ((IS_LOCAL(i->second)) && (already_sent[i->second->fd] != uniq_id))
1564 already_sent[i->second->fd] = uniq_id;
1565 i->second->Write(out1);
1573 void userrec::WriteWallOps(const std::string &text)
1575 /* Does nothing if theyre not opered */
1576 if ((!*this->oper) && (IS_LOCAL(this)))
1579 std::string wallop = "WALLOPS :";
1583 wallop.append(text);
1587 ServerInstance->Log(DEBUG,"Exception in userrec::Write() std::string::append");
1591 for (std::vector<userrec*>::const_iterator i = ServerInstance->local_users.begin(); i != ServerInstance->local_users.end(); i++)
1594 if ((IS_LOCAL(t)) && (t->modes[UM_WALLOPS]))
1595 this->WriteTo(t,wallop);
1599 void userrec::WriteWallOps(const char* text, ...)
1601 char textbuffer[MAXBUF];
1604 va_start(argsPtr, text);
1605 vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1608 this->WriteWallOps(std::string(textbuffer));
1611 /* return 0 or 1 depending if users u and u2 share one or more common channels
1612 * (used by QUIT, NICK etc which arent channel specific notices)
1614 * The old algorithm in 1.0 for this was relatively inefficient, iterating over
1615 * the first users channels then the second users channels within the outer loop,
1616 * therefore it was a maximum of x*y iterations (upon returning 0 and checking
1617 * all possible iterations). However this new function instead checks against the
1618 * channel's userlist in the inner loop which is a std::map<userrec*,userrec*>
1619 * and saves us time as we already know what pointer value we are after.
1620 * Don't quote me on the maths as i am not a mathematician or computer scientist,
1621 * but i believe this algorithm is now x+(log y) maximum iterations instead.
1623 bool userrec::SharesChannelWith(userrec *other)
1625 if ((!other) || (this->registered != REG_ALL) || (other->registered != REG_ALL))
1629 for (UCListIter i = this->chans.begin(); i != this->chans.end(); i++)
1631 /* Eliminate the inner loop (which used to be ~equal in size to the outer loop)
1632 * by replacing it with a map::find which *should* be more efficient
1634 if (i->first->HasUser(other))
1640 bool userrec::ChangeName(const char* gecos)
1642 if (!strcmp(gecos, this->fullname))
1648 FOREACH_RESULT(I_OnChangeLocalUserGECOS,OnChangeLocalUserGECOS(this,gecos));
1651 FOREACH_MOD(I_OnChangeName,OnChangeName(this,gecos));
1653 strlcpy(this->fullname,gecos,MAXGECOS+1);
1658 bool userrec::ChangeDisplayedHost(const char* host)
1660 if (!strcmp(host, this->dhost))
1666 FOREACH_RESULT(I_OnChangeLocalUserHost,OnChangeLocalUserHost(this,host));
1669 FOREACH_MOD(I_OnChangeHost,OnChangeHost(this,host));
1671 if (this->ServerInstance->Config->CycleHosts)
1672 this->WriteCommonExcept("QUIT :Changing hosts");
1674 /* Fix by Om: userrec::dhost is 65 long, this was truncating some long hosts */
1675 strlcpy(this->dhost,host,64);
1677 this->InvalidateCache();
1679 if (this->ServerInstance->Config->CycleHosts)
1681 for (UCListIter i = this->chans.begin(); i != this->chans.end(); i++)
1683 i->first->WriteAllExceptSender(this, false, 0, "JOIN %s", i->first->name);
1684 std::string n = this->ServerInstance->Modes->ModeString(this, i->first);
1686 i->first->WriteAllExceptSender(this, true, 0, "MODE %s +%s", i->first->name, n.c_str());
1691 this->WriteServ("396 %s %s :is now your displayed host",this->nick,this->dhost);
1696 bool userrec::ChangeIdent(const char* newident)
1698 if (!strcmp(newident, this->ident))
1701 if (this->ServerInstance->Config->CycleHosts)
1702 this->WriteCommonExcept("%s","QUIT :Changing ident");
1704 strlcpy(this->ident, newident, IDENTMAX+2);
1706 this->InvalidateCache();
1708 if (this->ServerInstance->Config->CycleHosts)
1710 for (UCListIter i = this->chans.begin(); i != this->chans.end(); i++)
1712 i->first->WriteAllExceptSender(this, false, 0, "JOIN %s", i->first->name);
1713 std::string n = this->ServerInstance->Modes->ModeString(this, i->first);
1715 i->first->WriteAllExceptSender(this, true, 0, "MODE %s +%s", i->first->name, n.c_str());
1722 void userrec::SendAll(const char* command, char* text, ...)
1724 char textbuffer[MAXBUF];
1725 char formatbuffer[MAXBUF];
1728 va_start(argsPtr, text);
1729 vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1732 snprintf(formatbuffer,MAXBUF,":%s %s $* :%s", this->GetFullHost(), command, textbuffer);
1733 std::string fmt = formatbuffer;
1735 for (std::vector<userrec*>::const_iterator i = ServerInstance->local_users.begin(); i != ServerInstance->local_users.end(); i++)
1742 std::string userrec::ChannelList(userrec* source)
1747 for (UCListIter i = this->chans.begin(); i != this->chans.end(); i++)
1749 /* If the target is the same as the sender, let them see all their channels.
1750 * If the channel is NOT private/secret OR the user shares a common channel
1751 * If the user is an oper, and the <options:operspywhois> option is set.
1753 if ((source == this) || (*source->oper && ServerInstance->Config->OperSpyWhois) || (((!i->first->modes[CM_PRIVATE]) && (!i->first->modes[CM_SECRET])) || (i->first->HasUser(source))))
1755 list.append(i->first->GetPrefixChar(this)).append(i->first->name).append(" ");
1762 ServerInstance->Log(DEBUG,"Exception in userrec::ChannelList()");
1767 void userrec::SplitChanList(userrec* dest, const std::string &cl)
1770 std::ostringstream prefix;
1771 std::string::size_type start, pos, length;
1775 prefix << this->nick << " " << dest->nick << " :";
1776 line = prefix.str();
1777 int namelen = strlen(ServerInstance->Config->ServerName) + 6;
1779 for (start = 0; (pos = cl.find(' ', start)) != std::string::npos; start = pos+1)
1781 length = (pos == std::string::npos) ? cl.length() : pos;
1783 if (line.length() + namelen + length - start > 510)
1785 ServerInstance->SendWhoisLine(this, dest, 319, "%s", line.c_str());
1786 line = prefix.str();
1789 if(pos == std::string::npos)
1791 line.append(cl.substr(start, length - start));
1796 line.append(cl.substr(start, length - start + 1));
1802 ServerInstance->SendWhoisLine(this, dest, 319, "%s", line.c_str());
1808 ServerInstance->Log(DEBUG,"Exception in userrec::SplitChanList()");
1813 /* looks up a users password for their connection class (<ALLOW>/<DENY> tags)
1814 * NOTE: If the <ALLOW> or <DENY> tag specifies an ip, and this user resolves,
1815 * then their ip will be taken as 'priority' anyway, so for example,
1816 * <connect allow="127.0.0.1"> will match joe!bloggs@localhost
1818 ConnectClass* userrec::GetClass()
1820 for (ClassVector::iterator i = ServerInstance->Config->Classes.begin(); i != ServerInstance->Config->Classes.end(); i++)
1822 if (((match(this->GetIPString(),i->GetHost().c_str(),true)) || (match(this->host,i->GetHost().c_str()))))
1826 if (this->GetPort() == i->GetPort())
1838 void userrec::PurgeEmptyChannels()
1840 std::vector<chanrec*> to_delete;
1842 // firstly decrement the count on each channel
1843 for (UCListIter f = this->chans.begin(); f != this->chans.end(); f++)
1845 f->first->RemoveAllPrefixes(this);
1846 if (f->first->DelUser(this) == 0)
1848 /* No users left in here, mark it for deletion */
1851 to_delete.push_back(f->first);
1855 ServerInstance->Log(DEBUG,"Exception in userrec::PurgeEmptyChannels to_delete.push_back()");
1860 for (std::vector<chanrec*>::iterator n = to_delete.begin(); n != to_delete.end(); n++)
1862 chanrec* thischan = *n;
1863 chan_hash::iterator i2 = ServerInstance->chanlist->find(thischan->name);
1864 if (i2 != ServerInstance->chanlist->end())
1866 FOREACH_MOD(I_OnChannelDelete,OnChannelDelete(i2->second));
1868 ServerInstance->chanlist->erase(i2);
1869 this->chans.erase(*n);
1876 void userrec::ShowMOTD()
1878 if (!ServerInstance->Config->MOTD.size())
1880 this->WriteServ("422 %s :Message of the day file is missing.",this->nick);
1883 this->WriteServ("375 %s :%s message of the day", this->nick, ServerInstance->Config->ServerName);
1885 for (file_cache::iterator i = ServerInstance->Config->MOTD.begin(); i != ServerInstance->Config->MOTD.end(); i++)
1886 this->WriteServ("372 %s :- %s",this->nick,i->c_str());
1888 this->WriteServ("376 %s :End of message of the day.", this->nick);
1891 void userrec::ShowRULES()
1893 if (!ServerInstance->Config->RULES.size())
1895 this->WriteServ("NOTICE %s :Rules file is missing.",this->nick);
1898 this->WriteServ("NOTICE %s :%s rules",this->nick,ServerInstance->Config->ServerName);
1900 for (file_cache::iterator i = ServerInstance->Config->RULES.begin(); i != ServerInstance->Config->RULES.end(); i++)
1901 this->WriteServ("NOTICE %s :%s",this->nick,i->c_str());
1903 this->WriteServ("NOTICE %s :End of %s rules.",this->nick,ServerInstance->Config->ServerName);
1906 void userrec::HandleEvent(EventType et, int errornum)
1908 /* WARNING: May delete this user! */
1909 int thisfd = this->GetFd();
1916 ServerInstance->ProcessUser(this);
1919 this->FlushWriteBuf();
1922 /** This should be safe, but dont DARE do anything after it -- Brain */
1923 this->SetWriteError(errornum ? strerror(errornum) : "EOF from client");
1929 ServerInstance->Log(DEBUG,"Exception in userrec::HandleEvent intercepted");
1932 /* If the user has raised an error whilst being processed, quit them now we're safe to */
1933 if ((ServerInstance->SE->GetRef(thisfd) == this))
1935 if (!WriteError.empty())
1937 userrec::QuitUser(ServerInstance, this, GetWriteError());
1942 void userrec::SetOperQuit(const std::string &oquit)
1947 operquit = strdup(oquit.c_str());
1950 const char* userrec::GetOperQuit()
1952 return operquit ? operquit : "";