1 /* +------------------------------------+
2 * | Inspire Internet Relay Chat Daemon |
3 * +------------------------------------+
5 * InspIRCd: (C) 2002-2009 InspIRCd Development Team
6 * See: http://wiki.inspircd.org/Credits
8 * This program is free but copyrighted software; see
9 * the file COPYING for details.
11 * ---------------------------------------------------
16 #include "socketengine.h"
19 #include "commands/cmd_whowas.h"
21 typedef unsigned int uniq_id_t;
29 array = new uniq_id_t[ServerInstance->SE->GetMaxFds()];
30 memset(array, 0, ServerInstance->SE->GetMaxFds() * sizeof(uniq_id_t));
34 sent() : uniq_id(static_cast<uniq_id_t>(-1)), array(NULL) {}
35 inline uniq_id_t operator++()
41 inline uniq_id_t& operator[](int i)
51 static sent already_sent;
53 std::string User::ProcessNoticeMasks(const char *sm)
55 bool adding = true, oldadding = false;
70 for (unsigned char d = 'A'; d <= 'z'; d++)
72 if (ServerInstance->SNO->IsEnabled(d))
74 if ((!IsNoticeMaskSet(d) && adding) || (IsNoticeMaskSet(d) && !adding))
76 if ((oldadding != adding) || (!output.length()))
77 output += (adding ? '+' : '-');
79 this->SetNoticeMask(d, adding);
88 if ((*c >= 'A') && (*c <= 'z') && (ServerInstance->SNO->IsEnabled(*c)))
90 if ((!IsNoticeMaskSet(*c) && adding) || (IsNoticeMaskSet(*c) && !adding))
92 if ((oldadding != adding) || (!output.length()))
93 output += (adding ? '+' : '-');
95 this->SetNoticeMask(*c, adding);
101 this->WriteNumeric(ERR_UNKNOWNSNOMASK, "%s %c :is unknown snomask char to me", this->nick.c_str(), *c);
110 std::string s = this->FormatNoticeMasks();
113 this->modes[UM_SNOMASK] = false;
119 void User::StartDNSLookup()
124 const char* sip = this->GetIPString();
125 UserResolver *res_reverse;
127 QueryType resolvtype = this->client_sa.sa.sa_family == AF_INET6 ? DNS_QUERY_PTR6 : DNS_QUERY_PTR4;
128 res_reverse = new UserResolver(this, sip, resolvtype, cached);
130 ServerInstance->AddResolver(res_reverse, cached);
132 catch (CoreException& e)
134 ServerInstance->Logs->Log("USERS", DEBUG,"Error in resolver: %s",e.GetReason());
138 bool User::IsNoticeMaskSet(unsigned char sm)
142 return (snomasks[sm-65]);
145 void User::SetNoticeMask(unsigned char sm, bool value)
149 snomasks[sm-65] = value;
152 const char* User::FormatNoticeMasks()
154 static char data[MAXBUF];
157 for (int n = 0; n < 64; n++)
160 data[offset++] = n+65;
167 bool User::IsModeSet(unsigned char m)
171 return (modes[m-65]);
174 void User::SetMode(unsigned char m, bool value)
181 const char* User::FormatModes(bool showparameters)
183 static char data[MAXBUF];
187 for (unsigned char n = 0; n < 64; n++)
191 data[offset++] = n + 65;
192 ModeHandler* mh = ServerInstance->Modes->FindMode(n + 65, MODETYPE_USER);
193 if (showparameters && mh && mh->GetNumParams(true))
195 std::string p = mh->GetUserParameter(this);
197 params.append(" ").append(p);
202 strlcat(data, params.c_str(), MAXBUF);
206 void User::DecrementModes()
208 ServerInstance->Logs->Log("USERS", DEBUG, "DecrementModes()");
209 for (unsigned char n = 'A'; n <= 'z'; n++)
213 ServerInstance->Logs->Log("USERS", DEBUG,"DecrementModes() found mode %c", n);
214 ModeHandler* mh = ServerInstance->Modes->FindMode(n, MODETYPE_USER);
217 ServerInstance->Logs->Log("USERS", DEBUG,"Found handler %c and call ChangeCount", n);
224 User::User(const std::string &uid)
226 server = ServerInstance->Config->ServerName;
227 age = ServerInstance->Time();
229 lastping = signon = idle_lastmsg = nping = registered = 0;
230 bytes_in = bytes_out = cmds_in = cmds_out = 0;
231 quietquit = quitting = exempt = dns_done = false;
233 server_sa.sa.sa_family = AF_UNSPEC;
234 client_sa.sa.sa_family = AF_UNSPEC;
235 AllowedPrivs = AllowedOperCommands = NULL;
238 uuid = ServerInstance->GetUID();
242 ServerInstance->Logs->Log("USERS", DEBUG,"New UUID for user: %s (%s)", uuid.c_str(), uid.empty() ? "allocated new" : "used remote");
244 user_hash::iterator finduuid = ServerInstance->Users->uuidlist->find(uuid);
245 if (finduuid == ServerInstance->Users->uuidlist->end())
246 (*ServerInstance->Users->uuidlist)[uuid] = this;
248 throw CoreException("Duplicate UUID "+std::string(uuid)+" in User constructor");
254 ServerInstance->Logs->Log("USERS", ERROR, "User destructor for %s called without cull", uuid.c_str());
257 const std::string& User::MakeHost()
259 if (!this->cached_makehost.empty())
260 return this->cached_makehost;
263 /* This is much faster than snprintf */
265 for(const char* n = ident.c_str(); *n; n++)
268 for(const char* n = host.c_str(); *n; n++)
272 this->cached_makehost.assign(nhost);
274 return this->cached_makehost;
277 const std::string& User::MakeHostIP()
279 if (!this->cached_hostip.empty())
280 return this->cached_hostip;
283 /* This is much faster than snprintf */
285 for(const char* n = ident.c_str(); *n; n++)
288 for(const char* n = this->GetIPString(); *n; n++)
292 this->cached_hostip = ihost;
294 return this->cached_hostip;
297 const std::string User::GetFullHost()
299 if (!this->cached_fullhost.empty())
300 return this->cached_fullhost;
304 for(const char* n = nick.c_str(); *n; n++)
307 for(const char* n = ident.c_str(); *n; n++)
310 for(const char* n = dhost.c_str(); *n; n++)
314 this->cached_fullhost = result;
316 return this->cached_fullhost;
319 char* User::MakeWildHost()
321 static char nresult[MAXBUF];
323 *t++ = '*'; *t++ = '!';
324 *t++ = '*'; *t++ = '@';
325 for(const char* n = dhost.c_str(); *n; n++)
331 const std::string User::GetFullRealHost()
333 if (!this->cached_fullrealhost.empty())
334 return this->cached_fullrealhost;
336 char fresult[MAXBUF];
338 for(const char* n = nick.c_str(); *n; n++)
341 for(const char* n = ident.c_str(); *n; n++)
344 for(const char* n = host.c_str(); *n; n++)
348 this->cached_fullrealhost = fresult;
350 return this->cached_fullrealhost;
353 bool User::IsInvited(const irc::string &channel)
355 time_t now = ServerInstance->Time();
356 InvitedList::iterator safei;
357 for (InvitedList::iterator i = invites.begin(); i != invites.end(); ++i)
359 if (channel == i->first)
361 if (i->second != 0 && now > i->second)
363 /* Expired invite, remove it. */
366 invites.erase(safei);
375 InvitedList* User::GetInviteList()
377 time_t now = ServerInstance->Time();
378 /* Weed out expired invites here. */
379 InvitedList::iterator safei;
380 for (InvitedList::iterator i = invites.begin(); i != invites.end(); ++i)
382 if (i->second != 0 && now > i->second)
384 /* Expired invite, remove it. */
387 invites.erase(safei);
393 void User::InviteTo(const irc::string &channel, time_t invtimeout)
395 time_t now = ServerInstance->Time();
396 if (invtimeout != 0 && now > invtimeout) return; /* Don't add invites that are expired from the get-go. */
397 for (InvitedList::iterator i = invites.begin(); i != invites.end(); ++i)
399 if (channel == i->first)
401 if (i->second != 0 && invtimeout > i->second)
403 i->second = invtimeout;
409 invites.push_back(std::make_pair(channel, invtimeout));
412 void User::RemoveInvite(const irc::string &channel)
414 for (InvitedList::iterator i = invites.begin(); i != invites.end(); i++)
416 if (channel == i->first)
424 bool User::HasModePermission(unsigned char mode, ModeType type)
432 if (mode < 'A' || mode > ('A' + 64)) return false;
434 return ((type == MODETYPE_USER ? AllowedUserModes : AllowedChanModes))[(mode - 'A')];
438 bool User::HasPermission(const std::string &command)
441 * users on remote servers can completely bypass all permissions based checks.
442 * This prevents desyncs when one server has different type/class tags to another.
443 * That having been said, this does open things up to the possibility of source changes
444 * allowing remote kills, etc - but if they have access to the src, they most likely have
445 * access to the conf - so it's an end to a means either way.
450 // are they even an oper at all?
456 if (!AllowedOperCommands)
459 if (AllowedOperCommands->find(command) != AllowedOperCommands->end())
461 else if (AllowedOperCommands->find("*") != AllowedOperCommands->end())
468 bool User::HasPrivPermission(const std::string &privstr, bool noisy)
472 ServerInstance->Logs->Log("PRIVS", DEBUG, "Remote (yes)");
479 this->WriteServ("NOTICE %s :You are not an oper", this->nick.c_str());
486 this->WriteServ("NOTICE %s :Privset empty(!?)", this->nick.c_str());
490 if (AllowedPrivs->find(privstr) != AllowedPrivs->end())
494 else if (AllowedPrivs->find("*") != AllowedPrivs->end())
500 this->WriteServ("NOTICE %s :Oper type %s does not have access to priv %s", this->nick.c_str(), this->oper.c_str(), privstr.c_str());
504 void User::OnDataReady()
509 if (MyClass && recvq.length() > MyClass->GetRecvqMax() && !HasPrivPermission("users/flood/increased-buffers"))
511 ServerInstance->Users->QuitUser(this, "RecvQ exceeded");
512 ServerInstance->SNO->WriteToSnoMask('a', "User %s RecvQ of %lu exceeds connect class maximum of %lu",
513 nick.c_str(), (unsigned long)recvq.length(), MyClass->GetRecvqMax());
515 unsigned long sendqmax = ULONG_MAX;
516 if (MyClass && !HasPrivPermission("users/flood/increased-buffers"))
517 sendqmax = MyClass->GetSendqSoftMax();
518 int penaltymax = MyClass->GetPenaltyThreshold();
519 if (penaltymax == 0 || HasPrivPermission("users/flood/no-fakelag"))
520 penaltymax = INT_MAX;
522 while (Penalty < penaltymax && getSendQSize() < sendqmax)
525 line.reserve(MAXBUF);
526 std::string::size_type qpos = 0;
527 while (qpos < recvq.length())
529 char c = recvq[qpos++];
540 if (line.length() < MAXBUF - 2)
543 // if we got here, the recvq ran out before we found a newline
546 // just found a newline. Terminate the string, and pull it out of recvq
547 recvq = recvq.substr(qpos);
549 // TODO should this be moved to when it was inserted in recvq?
550 ServerInstance->stats->statsRecv += qpos;
551 this->bytes_in += qpos;
554 ServerInstance->Parser->ProcessBuffer(line, this);
558 // Add pseudo-penalty so that we continue processing after sendq recedes
559 if (Penalty == 0 && getSendQSize() >= sendqmax)
563 void User::AddWriteBuf(const std::string &data)
565 // Don't bother sending text to remote users!
568 if (!quitting && MyClass && getSendQSize() + data.length() > MyClass->GetSendqHardMax() && !HasPrivPermission("users/flood/increased-buffers"))
571 * Quit the user FIRST, because otherwise we could recurse
572 * here and hit the same limit.
574 ServerInstance->Users->QuitUser(this, "SendQ exceeded");
575 ServerInstance->SNO->WriteToSnoMask('a', "User %s SendQ exceeds connect class maximum of %lu",
576 nick.c_str(), MyClass->GetSendqHardMax());
580 // We still want to append data to the sendq of a quitting user,
581 // e.g. their ERROR message that says 'closing link'
586 void User::OnError(BufferedSocketError)
588 ServerInstance->Users->QuitUser(this, getError());
591 CullResult User::cull()
594 ServerInstance->Users->QuitUser(this, "Culled without QuitUser");
597 ServerInstance->Logs->Log("USERS", DEBUG, "User culled twice? UUID empty");
598 return Extensible::cull();
600 PurgeEmptyChannels();
606 std::vector<User*>::iterator x = find(ServerInstance->Users->local_users.begin(),ServerInstance->Users->local_users.end(),this);
607 if (x != ServerInstance->Users->local_users.end())
608 ServerInstance->Users->local_users.erase(x);
610 ServerInstance->Logs->Log("USERS", DEBUG, "Failed to remove user from vector");
613 if (this->AllowedOperCommands)
615 delete AllowedOperCommands;
616 AllowedOperCommands = NULL;
619 if (this->AllowedPrivs)
625 this->InvalidateCache();
626 this->DecrementModes();
628 if (client_sa.sa.sa_family != AF_UNSPEC)
629 ServerInstance->Users->RemoveCloneCounts(this);
631 ServerInstance->Users->uuidlist->erase(uuid);
633 return Extensible::cull();
636 void User::Oper(const std::string &opertype, const std::string &opername)
638 if (this->IsModeSet('o'))
641 this->modes[UM_OPERATOR] = 1;
642 this->WriteServ("MODE %s :+o", this->nick.c_str());
643 FOREACH_MOD(I_OnOper, OnOper(this, opertype));
645 ServerInstance->SNO->WriteToSnoMask('o',"%s (%s@%s) is now an IRC operator of type %s (using oper '%s')", this->nick.c_str(), this->ident.c_str(), this->host.c_str(), irc::Spacify(opertype.c_str()), opername.c_str());
646 this->WriteNumeric(381, "%s :You are now %s %s", this->nick.c_str(), strchr("aeiouAEIOU", *opertype.c_str()) ? "an" : "a", irc::Spacify(opertype.c_str()));
648 ServerInstance->Logs->Log("OPER", DEFAULT, "%s!%s@%s opered as type: %s", this->nick.c_str(), this->ident.c_str(), this->host.c_str(), opertype.c_str());
649 this->oper.assign(opertype, 0, 512);
650 ServerInstance->Users->all_opers.push_back(this);
653 * This might look like it's in the wrong place.
656 * For multi-network servers, we may not have the opertypes of the remote server, but we still want to mark the user as an oper of that type.
659 TagIndex::iterator iter_opertype = ServerInstance->Config->opertypes.find(this->oper.c_str());
660 if (iter_opertype != ServerInstance->Config->opertypes.end())
662 if (AllowedOperCommands)
663 AllowedOperCommands->clear();
665 AllowedOperCommands = new std::set<std::string>;
668 AllowedPrivs->clear();
670 AllowedPrivs = new std::set<std::string>;
672 AllowedUserModes.reset();
673 AllowedChanModes.reset();
674 this->AllowedUserModes['o' - 'A'] = true; // Call me paranoid if you want.
676 std::string myclass, mycmd, mypriv;
677 irc::spacesepstream Classes(iter_opertype->second->getString("classes"));
678 while (Classes.GetToken(myclass))
680 TagIndex::iterator iter_operclass = ServerInstance->Config->operclass.find(myclass.c_str());
681 if (iter_operclass != ServerInstance->Config->operclass.end())
683 /* Process commands */
684 irc::spacesepstream CommandList(iter_operclass->second->getString("commands"));
685 while (CommandList.GetToken(mycmd))
687 this->AllowedOperCommands->insert(mycmd);
690 irc::spacesepstream PrivList(iter_operclass->second->getString("privs"));
691 while (PrivList.GetToken(mypriv))
693 this->AllowedPrivs->insert(mypriv);
696 for (unsigned char* c = (unsigned char*)iter_operclass->second->getString("usermodes").c_str(); *c; ++c)
700 this->AllowedUserModes.set();
704 this->AllowedUserModes[*c - 'A'] = true;
708 for (unsigned char* c = (unsigned char*)iter_operclass->second->getString("chanmodes").c_str(); *c; ++c)
712 this->AllowedChanModes.set();
716 this->AllowedChanModes[*c - 'A'] = true;
723 FOREACH_MOD(I_OnPostOper,OnPostOper(this, opertype, opername));
731 * unset their oper type (what IS_OPER checks).
732 * note, order is important - this must come before modes as -o attempts
733 * to call UnOper. -- w00t
738 /* Remove all oper only modes from the user when the deoper - Bug #466*/
739 std::string moderemove("-");
741 for (unsigned char letter = 'A'; letter <= 'z'; letter++)
743 ModeHandler* mh = ServerInstance->Modes->FindMode(letter, MODETYPE_USER);
744 if (mh && mh->NeedsOper())
745 moderemove += letter;
749 std::vector<std::string> parameters;
750 parameters.push_back(this->nick);
751 parameters.push_back(moderemove);
753 ServerInstance->Parser->CallHandler("MODE", parameters, this);
755 /* remove the user from the oper list. Will remove multiple entries as a safeguard against bug #404 */
756 ServerInstance->Users->all_opers.remove(this);
758 if (AllowedOperCommands)
760 delete AllowedOperCommands;
761 AllowedOperCommands = NULL;
770 AllowedUserModes.reset();
771 AllowedChanModes.reset();
772 this->modes[UM_OPERATOR] = 0;
776 /* adds or updates an entry in the whowas list */
777 void User::AddToWhoWas()
779 Module* whowas = ServerInstance->Modules->Find("cmd_whowas.so");
782 WhowasRequest req(NULL, whowas, WhowasRequest::WHOWAS_ADD);
789 * Check class restrictions
791 void User::CheckClass()
793 ConnectClass* a = this->MyClass;
795 if ((!a) || (a->type == CC_DENY))
797 ServerInstance->Users->QuitUser(this, "Unauthorised connection");
800 else if ((a->GetMaxLocal()) && (ServerInstance->Users->LocalCloneCount(this) > a->GetMaxLocal()))
802 ServerInstance->Users->QuitUser(this, "No more connections allowed from your host via this connect class (local)");
803 ServerInstance->SNO->WriteToSnoMask('a', "WARNING: maximum LOCAL connections (%ld) exceeded for IP %s", a->GetMaxLocal(), this->GetIPString());
806 else if ((a->GetMaxGlobal()) && (ServerInstance->Users->GlobalCloneCount(this) > a->GetMaxGlobal()))
808 ServerInstance->Users->QuitUser(this, "No more connections allowed from your host via this connect class (global)");
809 ServerInstance->SNO->WriteToSnoMask('a', "WARNING: maximum GLOBAL connections (%ld) exceeded for IP %s", a->GetMaxGlobal(), this->GetIPString());
813 this->nping = ServerInstance->Time() + a->GetPingTime() + ServerInstance->Config->dns_timeout;
816 bool User::CheckLines(bool doZline)
818 const char* check[] = { "G" , "K", (doZline) ? "Z" : NULL, NULL };
822 for (int n = 0; check[n]; ++n)
824 XLine *r = ServerInstance->XLines->MatchesLine(check[n], this);
837 void User::FullConnect()
839 ServerInstance->stats->statsConnects++;
840 this->idle_lastmsg = ServerInstance->Time();
843 * You may be thinking "wtf, we checked this in User::AddClient!" - and yes, we did, BUT.
844 * At the time AddClient is called, we don't have a resolved host, by here we probably do - which
845 * may put the user into a totally seperate class with different restrictions! so we *must* check again.
846 * Don't remove this! -- w00t
850 /* Check the password, if one is required by the user's connect class.
851 * This CANNOT be in CheckClass(), because that is called prior to PASS as well!
853 if (MyClass && !MyClass->pass.empty())
855 if (ServerInstance->PassCompare(this, MyClass->pass.c_str(), password.c_str(), MyClass->hash.c_str()))
857 ServerInstance->Users->QuitUser(this, "Invalid password");
862 if (this->CheckLines())
865 this->WriteServ("NOTICE Auth :Welcome to \002%s\002!",ServerInstance->Config->Network.c_str());
866 this->WriteNumeric(RPL_WELCOME, "%s :Welcome to the %s IRC Network %s!%s@%s",this->nick.c_str(), ServerInstance->Config->Network.c_str(), this->nick.c_str(), this->ident.c_str(), this->host.c_str());
867 this->WriteNumeric(RPL_YOURHOSTIS, "%s :Your host is %s, running version InspIRCd-2.0",this->nick.c_str(),ServerInstance->Config->ServerName.c_str());
868 this->WriteNumeric(RPL_SERVERCREATED, "%s :This server was created %s %s", this->nick.c_str(), __TIME__, __DATE__);
869 this->WriteNumeric(RPL_SERVERVERSION, "%s %s InspIRCd-2.0 %s %s %s", this->nick.c_str(), ServerInstance->Config->ServerName.c_str(), ServerInstance->Modes->UserModeList().c_str(), ServerInstance->Modes->ChannelModeList().c_str(), ServerInstance->Modes->ParaModeList().c_str());
871 ServerInstance->Config->Send005(this);
872 this->WriteNumeric(RPL_YOURUUID, "%s %s :your unique ID", this->nick.c_str(), this->uuid.c_str());
878 if (ServerInstance->Users->unregistered_count)
879 ServerInstance->Users->unregistered_count--;
881 /* Trigger LUSERS output, give modules a chance too */
882 ModResult MOD_RESULT;
883 std::string command("LUSERS");
884 std::vector<std::string> parameters;
885 FIRST_MOD_RESULT(OnPreCommand, MOD_RESULT, (command, parameters, this, true, "LUSERS"));
887 ServerInstance->CallCommandHandler(command, parameters, this);
890 * We don't set REG_ALL until triggering OnUserConnect, so some module events don't spew out stuff
891 * for a user that doesn't exist yet.
893 FOREACH_MOD(I_OnUserConnect,OnUserConnect(this));
895 this->registered = REG_ALL;
897 FOREACH_MOD(I_OnPostConnect,OnPostConnect(this));
899 ServerInstance->SNO->WriteToSnoMask('c',"Client connecting on port %d: %s!%s@%s [%s] [%s]",
900 this->GetServerPort(), this->nick.c_str(), this->ident.c_str(), this->host.c_str(), this->GetIPString(), this->fullname.c_str());
901 ServerInstance->Logs->Log("BANCACHE", DEBUG, "BanCache: Adding NEGATIVE hit for %s", this->GetIPString());
902 ServerInstance->BanCache->AddHit(this->GetIPString(), "", "");
905 /** User::UpdateNick()
906 * re-allocates a nick in the user_hash after they change nicknames,
907 * returns a pointer to the new user as it may have moved
909 User* User::UpdateNickHash(const char* New)
911 //user_hash::iterator newnick;
912 user_hash::iterator oldnick = ServerInstance->Users->clientlist->find(this->nick);
914 if (!irc::string(this->nick.c_str()).compare(New))
915 return oldnick->second;
917 if (oldnick == ServerInstance->Users->clientlist->end())
918 return NULL; /* doesnt exist */
920 User* olduser = oldnick->second;
921 ServerInstance->Users->clientlist->erase(oldnick);
922 (*(ServerInstance->Users->clientlist))[New] = olduser;
926 void User::InvalidateCache()
928 /* Invalidate cache */
929 cached_fullhost.clear();
930 cached_hostip.clear();
931 cached_makehost.clear();
932 cached_fullrealhost.clear();
935 bool User::ForceNickChange(const char* newnick)
937 ModResult MOD_RESULT;
939 this->InvalidateCache();
941 ServerInstance->NICKForced.set(this, 1);
942 FIRST_MOD_RESULT(OnUserPreNick, MOD_RESULT, (this, newnick));
943 ServerInstance->NICKForced.set(this, 0);
945 if (MOD_RESULT == MOD_RES_DENY)
947 ServerInstance->stats->statsCollisions++;
951 std::deque<classbase*> dummy;
952 Command* nickhandler = ServerInstance->Parser->GetHandler("NICK");
953 if (nickhandler) // wtfbbq, when would this not be here
955 std::vector<std::string> parameters;
956 parameters.push_back(newnick);
957 ServerInstance->NICKForced.set(this, 1);
958 bool result = (ServerInstance->Parser->CallHandler("NICK", parameters, this) == CMD_SUCCESS);
959 ServerInstance->NICKForced.set(this, 0);
963 // Unreachable, we hope
967 int User::GetServerPort()
969 switch (this->server_sa.sa.sa_family)
972 return htons(this->server_sa.in6.sin6_port);
974 return htons(this->server_sa.in4.sin_port);
979 const char* User::GetCIDRMask(int range)
984 throw "Negative range, sorry, no.";
987 * Original code written by Oliver Lupton (Om).
988 * Integrated by me. Thanks. :) -- w00t
990 switch (this->client_sa.sa.sa_family)
994 /* unsigned char s6_addr[16]; */
996 int i, bytestozero, extrabits;
1000 throw "CIDR mask width greater than address width (IPv6, 128 bit)";
1002 /* To create the CIDR mask we want to set all the bits after 'range' bits of the address
1003 * to zero. This means the last (128 - range) bits of the address must be set to zero.
1004 * Hence this number divided by 8 is the number of whole bytes from the end of the address
1005 * which must be set to zero.
1007 bytestozero = (128 - range) / 8;
1009 /* Some of the least significant bits of the next most significant byte may also have to
1010 * be zeroed. The number of bits is the remainder of the above division.
1012 extrabits = (128 - range) % 8;
1014 /* Populate our working struct with the parts of the user's IP which are required in the
1015 * final CIDR mask. Set all the subsequent bytes to zero.
1016 * (16 - bytestozero) is the number of bytes which must be populated with actual IP data.
1018 for(i = 0; i < (16 - bytestozero); i++)
1020 v6.s6_addr[i] = client_sa.in6.sin6_addr.s6_addr[i];
1023 /* And zero all the remaining bytes in the IP. */
1029 /* And finally, zero the extra bits required. */
1030 v6.s6_addr[15 - bytestozero] = (v6.s6_addr[15 - bytestozero] >> extrabits) << extrabits;
1032 snprintf(buf, 44, "%s/%d", inet_ntop(AF_INET6, &v6, buffer, 40), range);
1042 throw "CIDR mask width greater than address width (IPv4, 32 bit)";
1044 /* Users already have a sockaddr* pointer (User::ip) which contains either a v4 or v6 structure */
1045 v4.s_addr = client_sa.in4.sin_addr.s_addr;
1047 /* To create the CIDR mask we want to set all the bits after 'range' bits of the address
1048 * to zero. This means the last (32 - range) bits of the address must be set to zero.
1049 * This is done by shifting the value right and then back left by (32 - range) bits.
1053 v4.s_addr = ntohl(v4.s_addr);
1054 v4.s_addr = (v4.s_addr >> (32 - range)) << (32 - range);
1055 v4.s_addr = htonl(v4.s_addr);
1059 /* a range of zero would cause a 32 bit value to be shifted by 32 bits.
1060 * this has undefined behaviour, but for CIDR purposes the resulting mask
1061 * from a.b.c.d/0 is 0.0.0.0/0
1066 snprintf(buf, 44, "%s/%d", inet_ntop(AF_INET, &v4, buffer, 16), range);
1072 return ""; // unused, but oh well
1075 const char* User::GetIPString()
1078 if (cachedip.empty())
1080 irc::sockets::satoap(&client_sa, cachedip, port);
1081 /* IP addresses starting with a : on irc are a Bad Thing (tm) */
1082 if (cachedip.c_str()[0] == ':')
1083 cachedip.insert(0,1,'0');
1086 return cachedip.c_str();
1089 bool User::SetClientIP(const char* sip)
1091 this->cachedip = "";
1092 return irc::sockets::aptosa(sip, 0, &client_sa);
1095 static std::string wide_newline("\r\n");
1097 void User::Write(const std::string& text)
1099 if (!ServerInstance->SE->BoundsCheckFd(this))
1102 if (text.length() > MAXBUF - 2)
1104 // this should happen rarely or never. Crop the string at 512 and try again.
1105 std::string try_again = text.substr(0, MAXBUF - 2);
1110 ServerInstance->Logs->Log("USEROUTPUT", DEBUG,"C[%d] O %s", this->GetFd(), text.c_str());
1112 this->AddWriteBuf(text);
1113 this->AddWriteBuf(wide_newline);
1115 ServerInstance->stats->statsSent += text.length() + 2;
1116 this->bytes_out += text.length() + 2;
1122 void User::Write(const char *text, ...)
1125 char textbuffer[MAXBUF];
1127 va_start(argsPtr, text);
1128 vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1131 this->Write(std::string(textbuffer));
1134 void User::WriteServ(const std::string& text)
1136 this->Write(":%s %s",ServerInstance->Config->ServerName.c_str(),text.c_str());
1140 * Same as Write(), except `text' is prefixed with `:server.name '.
1142 void User::WriteServ(const char* text, ...)
1145 char textbuffer[MAXBUF];
1147 va_start(argsPtr, text);
1148 vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1151 this->WriteServ(std::string(textbuffer));
1155 void User::WriteNumeric(unsigned int numeric, const char* text, ...)
1158 char textbuffer[MAXBUF];
1160 va_start(argsPtr, text);
1161 vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1164 this->WriteNumeric(numeric, std::string(textbuffer));
1167 void User::WriteNumeric(unsigned int numeric, const std::string &text)
1169 char textbuffer[MAXBUF];
1170 ModResult MOD_RESULT;
1172 FIRST_MOD_RESULT(OnNumeric, MOD_RESULT, (this, numeric, text));
1174 if (MOD_RESULT == MOD_RES_DENY)
1177 snprintf(textbuffer,MAXBUF,":%s %03u %s",ServerInstance->Config->ServerName.c_str(), numeric, text.c_str());
1178 this->Write(std::string(textbuffer));
1181 void User::WriteFrom(User *user, const std::string &text)
1185 snprintf(tb,MAXBUF,":%s %s",user->GetFullHost().c_str(),text.c_str());
1187 this->Write(std::string(tb));
1191 /* write text from an originating user to originating user */
1193 void User::WriteFrom(User *user, const char* text, ...)
1196 char textbuffer[MAXBUF];
1198 va_start(argsPtr, text);
1199 vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1202 this->WriteFrom(user, std::string(textbuffer));
1206 /* write text to an destination user from a source user (e.g. user privmsg) */
1208 void User::WriteTo(User *dest, const char *data, ...)
1210 char textbuffer[MAXBUF];
1213 va_start(argsPtr, data);
1214 vsnprintf(textbuffer, MAXBUF, data, argsPtr);
1217 this->WriteTo(dest, std::string(textbuffer));
1220 void User::WriteTo(User *dest, const std::string &data)
1222 dest->WriteFrom(this, data);
1225 void User::WriteCommon(const char* text, ...)
1227 char textbuffer[MAXBUF];
1230 if (this->registered != REG_ALL || quitting)
1233 int len = snprintf(textbuffer,MAXBUF,":%s ",this->GetFullHost().c_str());
1235 va_start(argsPtr, text);
1236 vsnprintf(textbuffer + len, MAXBUF - len, text, argsPtr);
1239 this->WriteCommonRaw(std::string(textbuffer), true);
1242 void User::WriteCommonExcept(const char* text, ...)
1244 char textbuffer[MAXBUF];
1247 if (this->registered != REG_ALL || quitting)
1250 int len = snprintf(textbuffer,MAXBUF,":%s ",this->GetFullHost().c_str());
1252 va_start(argsPtr, text);
1253 vsnprintf(textbuffer + len, MAXBUF - len, text, argsPtr);
1256 this->WriteCommonRaw(std::string(textbuffer), false);
1259 void User::WriteCommonRaw(const std::string &line, bool include_self)
1261 if (this->registered != REG_ALL || quitting)
1264 uniq_id_t uniq_id = ++already_sent;
1266 UserChanList include_c(chans);
1267 std::map<User*,bool> exceptions;
1269 exceptions[this] = include_self;
1271 FOREACH_MOD(I_OnBuildNeighborList,OnBuildNeighborList(this, include_c, exceptions));
1273 for (std::map<User*,bool>::iterator i = exceptions.begin(); i != exceptions.end(); ++i)
1276 if (IS_LOCAL(u) && !u->quitting)
1278 already_sent[u->fd] = uniq_id;
1283 for (UCListIter v = include_c.begin(); v != include_c.end(); ++v)
1286 const UserMembList* ulist = c->GetUsers();
1287 for (UserMembList::const_iterator i = ulist->begin(); i != ulist->end(); i++)
1290 if (IS_LOCAL(u) && !u->quitting && already_sent[u->fd] != uniq_id)
1292 already_sent[u->fd] = uniq_id;
1299 void User::WriteCommonQuit(const std::string &normal_text, const std::string &oper_text)
1304 if (this->registered != REG_ALL)
1307 uniq_id_t uniq_id = ++already_sent;
1309 snprintf(tb1,MAXBUF,":%s QUIT :%s",this->GetFullHost().c_str(),normal_text.c_str());
1310 snprintf(tb2,MAXBUF,":%s QUIT :%s",this->GetFullHost().c_str(),oper_text.c_str());
1311 std::string out1 = tb1;
1312 std::string out2 = tb2;
1314 UserChanList include_c(chans);
1315 std::map<User*,bool> exceptions;
1317 FOREACH_MOD(I_OnBuildNeighborList,OnBuildNeighborList(this, include_c, exceptions));
1319 for (std::map<User*,bool>::iterator i = exceptions.begin(); i != exceptions.end(); ++i)
1322 if (IS_LOCAL(u) && !u->quitting)
1324 already_sent[u->fd] = uniq_id;
1326 u->Write(IS_OPER(u) ? out2 : out1);
1329 for (UCListIter v = include_c.begin(); v != include_c.end(); ++v)
1331 const UserMembList* ulist = (*v)->GetUsers();
1332 for (UserMembList::const_iterator i = ulist->begin(); i != ulist->end(); i++)
1335 if (IS_LOCAL(u) && !u->quitting && (already_sent[u->fd] != uniq_id))
1337 already_sent[u->fd] = uniq_id;
1338 u->Write(IS_OPER(u) ? out2 : out1);
1344 void User::SendText(const std::string& line)
1348 else if (!IS_SERVER(this))
1349 ServerInstance->PI->PushToClient(this, line);
1352 void User::SendText(const char *text, ...)
1357 va_start(argsPtr, text);
1358 vsnprintf(line, MAXBUF, text, argsPtr);
1361 SendText(std::string(line));
1364 void User::SendText(const std::string &LinePrefix, std::stringstream &TextStream)
1367 int start_pos = LinePrefix.length();
1368 int pos = start_pos;
1369 memcpy(line, LinePrefix.data(), pos);
1371 while (TextStream >> Word)
1373 int len = Word.length();
1374 if (pos + len + 12 > MAXBUF)
1377 SendText(std::string(line));
1381 memcpy(line + pos + 1, Word.data(), len);
1385 SendText(std::string(line));
1388 /* return 0 or 1 depending if users u and u2 share one or more common channels
1389 * (used by QUIT, NICK etc which arent channel specific notices)
1391 * The old algorithm in 1.0 for this was relatively inefficient, iterating over
1392 * the first users channels then the second users channels within the outer loop,
1393 * therefore it was a maximum of x*y iterations (upon returning 0 and checking
1394 * all possible iterations). However this new function instead checks against the
1395 * channel's userlist in the inner loop which is a std::map<User*,User*>
1396 * and saves us time as we already know what pointer value we are after.
1397 * Don't quote me on the maths as i am not a mathematician or computer scientist,
1398 * but i believe this algorithm is now x+(log y) maximum iterations instead.
1400 bool User::SharesChannelWith(User *other)
1402 if ((!other) || (this->registered != REG_ALL) || (other->registered != REG_ALL))
1406 for (UCListIter i = this->chans.begin(); i != this->chans.end(); i++)
1408 /* Eliminate the inner loop (which used to be ~equal in size to the outer loop)
1409 * by replacing it with a map::find which *should* be more efficient
1411 if ((*i)->HasUser(other))
1417 bool User::ChangeName(const char* gecos)
1419 if (!this->fullname.compare(gecos))
1424 ModResult MOD_RESULT;
1425 FIRST_MOD_RESULT(OnChangeLocalUserGECOS, MOD_RESULT, (this,gecos));
1426 if (MOD_RESULT == MOD_RES_DENY)
1428 FOREACH_MOD(I_OnChangeName,OnChangeName(this,gecos));
1430 this->fullname.assign(gecos, 0, ServerInstance->Config->Limits.MaxGecos);
1435 void User::DoHostCycle(const std::string &quitline)
1437 char buffer[MAXBUF];
1439 if (!ServerInstance->Config->CycleHosts)
1442 uniq_id_t silent_id = ++already_sent;
1443 uniq_id_t seen_id = ++already_sent;
1445 UserChanList include_c(chans);
1446 std::map<User*,bool> exceptions;
1448 FOREACH_MOD(I_OnBuildNeighborList,OnBuildNeighborList(this, include_c, exceptions));
1450 for (std::map<User*,bool>::iterator i = exceptions.begin(); i != exceptions.end(); ++i)
1453 if (IS_LOCAL(u) && !u->quitting)
1457 already_sent[u->fd] = seen_id;
1462 already_sent[u->fd] = silent_id;
1466 for (UCListIter v = include_c.begin(); v != include_c.end(); ++v)
1469 snprintf(buffer, MAXBUF, ":%s JOIN %s", GetFullHost().c_str(), c->name.c_str());
1470 std::string joinline(buffer);
1471 std::string modeline = ServerInstance->Modes->ModeString(this, c);
1472 if (modeline.length() > 0)
1474 snprintf(buffer, MAXBUF, ":%s MODE %s +%s", GetFullHost().c_str(), c->name.c_str(), modeline.c_str());
1478 const UserMembList *ulist = c->GetUsers();
1479 for (UserMembList::const_iterator i = ulist->begin(); i != ulist->end(); i++)
1482 if (u == this || !IS_LOCAL(u))
1484 if (already_sent[u->fd] == silent_id)
1487 if (already_sent[u->fd] != seen_id)
1490 already_sent[i->first->fd] = seen_id;
1493 if (modeline.length() > 0)
1499 bool User::ChangeDisplayedHost(const char* shost)
1506 ModResult MOD_RESULT;
1507 FIRST_MOD_RESULT(OnChangeLocalUserHost, MOD_RESULT, (this,shost));
1508 if (MOD_RESULT == MOD_RES_DENY)
1512 FOREACH_MOD(I_OnChangeHost, OnChangeHost(this,shost));
1514 std::string quitstr = ":" + GetFullHost() + " QUIT :Changing host";
1516 /* Fix by Om: User::dhost is 65 long, this was truncating some long hosts */
1517 this->dhost.assign(shost, 0, 64);
1519 this->InvalidateCache();
1521 this->DoHostCycle(quitstr);
1524 this->WriteNumeric(RPL_YOURDISPLAYEDHOST, "%s %s :is now your displayed host",this->nick.c_str(),this->dhost.c_str());
1529 bool User::ChangeIdent(const char* newident)
1531 if (this->ident == newident)
1534 FOREACH_MOD(I_OnChangeIdent, OnChangeIdent(this,newident));
1536 std::string quitstr = ":" + GetFullHost() + " QUIT :Changing ident";
1538 this->ident.assign(newident, 0, ServerInstance->Config->Limits.IdentMax + 1);
1540 this->InvalidateCache();
1542 this->DoHostCycle(quitstr);
1547 void User::SendAll(const char* command, const char* text, ...)
1549 char textbuffer[MAXBUF];
1550 char formatbuffer[MAXBUF];
1553 va_start(argsPtr, text);
1554 vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1557 snprintf(formatbuffer,MAXBUF,":%s %s $* :%s", this->GetFullHost().c_str(), command, textbuffer);
1558 std::string fmt = formatbuffer;
1560 for (std::vector<User*>::const_iterator i = ServerInstance->Users->local_users.begin(); i != ServerInstance->Users->local_users.end(); i++)
1567 std::string User::ChannelList(User* source, bool spy)
1571 for (UCListIter i = this->chans.begin(); i != this->chans.end(); i++)
1574 /* If the target is the sender, neither +p nor +s is set, or
1575 * the channel contains the user, it is not a spy channel
1577 if (spy != (source == this || !(c->IsModeSet('p') || c->IsModeSet('s')) || c->HasUser(source)))
1578 list.append(c->GetPrefixChar(this)).append(c->name).append(" ");
1584 void User::SplitChanList(User* dest, const std::string &cl)
1587 std::ostringstream prefix;
1588 std::string::size_type start, pos, length;
1590 prefix << this->nick << " " << dest->nick << " :";
1591 line = prefix.str();
1592 int namelen = ServerInstance->Config->ServerName.length() + 6;
1594 for (start = 0; (pos = cl.find(' ', start)) != std::string::npos; start = pos+1)
1596 length = (pos == std::string::npos) ? cl.length() : pos;
1598 if (line.length() + namelen + length - start > 510)
1600 ServerInstance->SendWhoisLine(this, dest, 319, "%s", line.c_str());
1601 line = prefix.str();
1604 if(pos == std::string::npos)
1606 line.append(cl.substr(start, length - start));
1611 line.append(cl.substr(start, length - start + 1));
1617 ServerInstance->SendWhoisLine(this, dest, 319, "%s", line.c_str());
1622 * Sets a user's connection class.
1623 * If the class name is provided, it will be used. Otherwise, the class will be guessed using host/ip/ident/etc.
1624 * NOTE: If the <ALLOW> or <DENY> tag specifies an ip, and this user resolves,
1625 * then their ip will be taken as 'priority' anyway, so for example,
1626 * <connect allow="127.0.0.1"> will match joe!bloggs@localhost
1628 ConnectClass* User::SetClass(const std::string &explicit_name)
1630 ConnectClass *found = NULL;
1632 if (!IS_LOCAL(this))
1635 ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "Setting connect class for UID %s", this->uuid.c_str());
1637 if (!explicit_name.empty())
1639 for (ClassVector::iterator i = ServerInstance->Config->Classes.begin(); i != ServerInstance->Config->Classes.end(); i++)
1641 ConnectClass* c = *i;
1643 if (explicit_name == c->name)
1645 ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "Explicitly set to %s", explicit_name.c_str());
1652 for (ClassVector::iterator i = ServerInstance->Config->Classes.begin(); i != ServerInstance->Config->Classes.end(); i++)
1654 ConnectClass* c = *i;
1656 if (c->type == CC_ALLOW)
1658 ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "ALLOW %s %d %s", c->host.c_str(), c->GetPort(), c->GetName().c_str());
1662 ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "DENY %s %d %s", c->GetHost().c_str(), c->GetPort(), c->GetName().c_str());
1665 /* check if host matches.. */
1666 if (c->GetHost().length() && !InspIRCd::MatchCIDR(this->GetIPString(), c->GetHost(), NULL) &&
1667 !InspIRCd::MatchCIDR(this->host, c->GetHost(), NULL))
1669 ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "No host match (for %s)", c->GetHost().c_str());
1674 * deny change if change will take class over the limit check it HERE, not after we found a matching class,
1675 * because we should attempt to find another class if this one doesn't match us. -- w00t
1677 if (c->limit && (c->GetReferenceCount() >= c->limit))
1679 ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "OOPS: Connect class limit (%lu) hit, denying", c->limit);
1683 /* if it requires a port ... */
1686 ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "Requires port (%d)", c->GetPort());
1688 /* and our port doesn't match, fail. */
1689 if (this->GetServerPort() != c->GetPort())
1691 ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "Port match failed (%d)", this->GetServerPort());
1696 /* we stop at the first class that meets ALL critera. */
1703 * Okay, assuming we found a class that matches.. switch us into that class, keeping refcounts up to date.
1710 return this->MyClass;
1713 /* looks up a users password for their connection class (<ALLOW>/<DENY> tags)
1714 * NOTE: If the <ALLOW> or <DENY> tag specifies an ip, and this user resolves,
1715 * then their ip will be taken as 'priority' anyway, so for example,
1716 * <connect allow="127.0.0.1"> will match joe!bloggs@localhost
1718 ConnectClass* User::GetClass()
1720 return this->MyClass;
1723 void User::PurgeEmptyChannels()
1725 // firstly decrement the count on each channel
1726 for (UCListIter f = this->chans.begin(); f != this->chans.end(); f++)
1735 void User::ShowMOTD()
1737 if (!ServerInstance->Config->MOTD.size())
1739 this->WriteNumeric(ERR_NOMOTD, "%s :Message of the day file is missing.",this->nick.c_str());
1742 this->WriteNumeric(RPL_MOTDSTART, "%s :%s message of the day", this->nick.c_str(), ServerInstance->Config->ServerName.c_str());
1744 for (file_cache::iterator i = ServerInstance->Config->MOTD.begin(); i != ServerInstance->Config->MOTD.end(); i++)
1745 this->WriteNumeric(RPL_MOTD, "%s :- %s",this->nick.c_str(),i->c_str());
1747 this->WriteNumeric(RPL_ENDOFMOTD, "%s :End of message of the day.", this->nick.c_str());
1750 void User::ShowRULES()
1752 if (!ServerInstance->Config->RULES.size())
1754 this->WriteNumeric(ERR_NORULES, "%s :RULES File is missing",this->nick.c_str());
1758 this->WriteNumeric(RPL_RULESTART, "%s :- %s Server Rules -",this->nick.c_str(),ServerInstance->Config->ServerName.c_str());
1760 for (file_cache::iterator i = ServerInstance->Config->RULES.begin(); i != ServerInstance->Config->RULES.end(); i++)
1761 this->WriteNumeric(RPL_RULES, "%s :- %s",this->nick.c_str(),i->c_str());
1763 this->WriteNumeric(RPL_RULESEND, "%s :End of RULES command.",this->nick.c_str());
1766 void User::IncreasePenalty(int increase)
1768 this->Penalty += increase;
1771 void FakeUser::SetFakeServer(std::string name)
1774 this->server = name;
1777 const std::string FakeUser::GetFullHost()
1779 if (!ServerInstance->Config->HideWhoisServer.empty())
1780 return ServerInstance->Config->HideWhoisServer;
1784 const std::string FakeUser::GetFullRealHost()
1786 if (!ServerInstance->Config->HideWhoisServer.empty())
1787 return ServerInstance->Config->HideWhoisServer;
1791 ConnectClass::ConnectClass(ConfigTag* tag, char t, const std::string& mask)
1792 : config(tag), type(t), name("unnamed"), registration_timeout(0), host(mask),
1793 pingtime(0), pass(""), hash(""), softsendqmax(0), hardsendqmax(0),
1794 recvqmax(0), penaltythreshold(0), maxlocal(0), maxglobal(0), maxchans(0), port(0), limit(0)
1798 ConnectClass::ConnectClass(ConfigTag* tag, char t, const std::string& mask, const ConnectClass& parent)
1799 : config(tag), type(t), name("unnamed"),
1800 registration_timeout(parent.registration_timeout), host(mask),
1801 pingtime(parent.pingtime), pass(parent.pass), hash(parent.hash),
1802 softsendqmax(parent.softsendqmax), hardsendqmax(parent.hardsendqmax),
1803 recvqmax(parent.recvqmax), penaltythreshold(parent.penaltythreshold), maxlocal(parent.maxlocal),
1804 maxglobal(parent.maxglobal), maxchans(parent.maxchans),
1805 port(parent.port), limit(parent.limit)
1809 void ConnectClass::Update(const ConnectClass* src)
1812 registration_timeout = src->registration_timeout;
1814 pingtime = src->pingtime;
1817 softsendqmax = src->softsendqmax;
1818 hardsendqmax = src->hardsendqmax;
1819 recvqmax = src->recvqmax;
1820 penaltythreshold = src->penaltythreshold;
1821 maxlocal = src->maxlocal;
1822 maxglobal = src->maxglobal;