X-Git-Url: https://git.netwichtig.de/gitweb/?a=blobdiff_plain;f=src%2Fusermanager.cpp;h=c7aaa5c1134e54c9240c1ff0557bfa2112cd8d0c;hb=e0dc7691c4cff3a38bc12adf10b3709d8c4901ba;hp=ba6bbf36bb8e6a96bd1a2a3c6bd82211df21bf9d;hpb=903a0075d3c123b16128b9f8f2eb36878c28e282;p=user%2Fhenk%2Fcode%2Finspircd.git diff --git a/src/usermanager.cpp b/src/usermanager.cpp index ba6bbf36b..c7aaa5c11 100644 --- a/src/usermanager.cpp +++ b/src/usermanager.cpp @@ -1,10 +1,17 @@ /* * InspIRCd -- Internet Relay Chat Daemon * + * Copyright (C) 2019 iwalkalone + * Copyright (C) 2019 Matt Schatz + * Copyright (C) 2013-2016, 2018 Attila Molnar + * Copyright (C) 2013, 2018-2020 Sadie Powell + * Copyright (C) 2013, 2015 Adam + * Copyright (C) 2013 Daniel Vassdal + * Copyright (C) 2012, 2019 Robby * Copyright (C) 2009-2010 Daniel De Graaf - * Copyright (C) 2008 Dennis Friis + * Copyright (C) 2009 Uli Schlachter + * Copyright (C) 2008-2010 Craig Edwards * Copyright (C) 2008 Robin Burchell - * Copyright (C) 2008 Craig Edwards * * This file is part of InspIRCd. InspIRCd is free software: you can * redistribute it and/or modify it under the terms of the GNU General Public @@ -28,24 +35,85 @@ namespace { class WriteCommonQuit : public User::ForEachNeighborHandler { - std::string line; - std::string operline; + ClientProtocol::Messages::Quit quitmsg; + ClientProtocol::Event quitevent; + ClientProtocol::Messages::Quit operquitmsg; + ClientProtocol::Event operquitevent; void Execute(LocalUser* user) CXX11_OVERRIDE { - user->Write(user->IsOper() ? operline : line); + user->Send(user->IsOper() ? operquitevent : quitevent); } public: WriteCommonQuit(User* user, const std::string& msg, const std::string& opermsg) - : line(":" + user->GetFullHost() + " QUIT :") - , operline(line) + : quitmsg(user, msg) + , quitevent(ServerInstance->GetRFCEvents().quit, quitmsg) + , operquitmsg(user, opermsg) + , operquitevent(ServerInstance->GetRFCEvents().quit, operquitmsg) { - line += msg; - operline += opermsg; user->ForEachNeighbor(*this, false); } }; + + void CheckPingTimeout(LocalUser* user) + { + // Check if it is time to ping the user yet. + if (ServerInstance->Time() < user->nextping) + return; + + // This user didn't answer the last ping, remove them. + if (!user->lastping) + { + ModResult res; + FIRST_MOD_RESULT(OnConnectionFail, res, (user, I_ERR_TIMEOUT)); + if (res == MOD_RES_ALLOW) + { + // A module is preventing this user from being timed out. + user->lastping = 1; + user->nextping = ServerInstance->Time() + user->MyClass->GetPingTime(); + return; + } + + time_t secs = ServerInstance->Time() - (user->nextping - user->MyClass->GetPingTime()); + const std::string message = "Ping timeout: " + ConvToStr(secs) + (secs != 1 ? " seconds" : " second"); + ServerInstance->Users.QuitUser(user, message); + return; + } + + // Send a ping to the client. + ClientProtocol::Messages::Ping ping; + user->Send(ServerInstance->GetRFCEvents().ping, ping); + user->lastping = 0; + user->nextping = ServerInstance->Time() + user->MyClass->GetPingTime(); + } + + void CheckRegistrationTimeout(LocalUser* user) + { + if (user->GetClass() && (ServerInstance->Time() > (user->signon + user->GetClass()->GetRegTimeout()))) + { + // Either the user did not send NICK/USER or a module blocked registration in + // OnCheckReady until the client timed out. + ServerInstance->Users.QuitUser(user, "Registration timeout"); + } + } + + void CheckModulesReady(LocalUser* user) + { + ModResult res; + FIRST_MOD_RESULT(OnCheckReady, res, (user)); + if (res == MOD_RES_PASSTHRU) + { + // User has sent NICK/USER and modules are ready. + user->FullConnect(); + return; + } + + // If the user has been quit in OnCheckReady then we shouldn't quit + // them again for having a registration timeout. + if (!user->quitting) + CheckRegistrationTimeout(user); + } } UserManager::UserManager() @@ -62,34 +130,55 @@ UserManager::~UserManager() } } -/* add a client connection to the sockets list */ void UserManager::AddUser(int socket, ListenSocket* via, irc::sockets::sockaddrs* client, irc::sockets::sockaddrs* server) { - /* NOTE: Calling this one parameter constructor for User automatically - * allocates a new UUID and places it in the hash_map. - */ + // User constructor allocates a new UUID for the user and inserts it into the uuidlist LocalUser* const New = new LocalUser(socket, client, server); UserIOHandler* eh = &New->eh; - // If this listener has an IO hook provider set then tell it about the connection - if (via->iohookprov) - via->iohookprov->OnAccept(eh, client, server); - ServerInstance->Logs->Log("USERS", LOG_DEBUG, "New user fd: %d", socket); this->unregistered_count++; - - /* The users default nick is their UUID */ - New->nick = New->uuid; this->clientlist[New->nick] = New; + this->AddClone(New); + this->local_users.push_front(New); + FOREACH_MOD(OnUserInit, (New)); - New->registered = REG_NONE; - New->signon = ServerInstance->Time(); - New->lastping = 1; + if (!SocketEngine::AddFd(eh, FD_WANT_FAST_READ | FD_WANT_EDGE_WRITE)) + { + ServerInstance->Logs->Log("USERS", LOG_DEBUG, "Internal error on new connection"); + this->QuitUser(New, "Internal error handling connection"); + return; + } - this->AddClone(New); + // If this listener has an IO hook provider set then tell it about the connection + for (ListenSocket::IOHookProvList::iterator i = via->iohookprovs.begin(); i != via->iohookprovs.end(); ++i) + { + ListenSocket::IOHookProvRef& iohookprovref = *i; + if (!iohookprovref) + { + if (!iohookprovref.GetProvider().empty()) + { + ServerInstance->Logs->Log("USERS", LOG_DEBUG, "Non-existent I/O hook '%s' in tag at %s", + iohookprovref.GetProvider().c_str(), + i == via->iohookprovs.begin() ? "hook" : "sslprofile", + via->bind_tag->getTagLocation().c_str()); + this->QuitUser(New, "Internal error handling connection"); + return; + } + continue; + } - this->local_users.push_front(New); + iohookprovref->OnAccept(eh, client, server); + + // IOHook could have encountered a fatal error, e.g. if the TLS ClientHello + // was already in the queue and there was no common TLS version. + if (!eh->getError().empty()) + { + QuitUser(New, eh->getError()); + return; + } + } if (this->local_users.size() > ServerInstance->Config->SoftLimit) { @@ -98,16 +187,9 @@ void UserManager::AddUser(int socket, ListenSocket* via, irc::sockets::sockaddrs return; } - /* - * First class check. We do this again in FullConnect after DNS is done, and NICK/USER is recieved. - * See my note down there for why this is required. DO NOT REMOVE. :) -- w00t - */ + // First class check. We do this again in LocalUser::FullConnect() after DNS is done, and NICK/USER is received. New->SetClass(); - - /* - * Check connect class settings and initialise settings into User. - * This will be done again after DNS resolution. -- w00t - */ + // If the user doesn't have an acceptable connect class CheckClass() quits them New->CheckClass(ServerInstance->Config->CCOnConnect); if (New->quitting) return; @@ -127,8 +209,12 @@ void UserManager::AddUser(int socket, ListenSocket* via, irc::sockets::sockaddrs /* user banned */ ServerInstance->Logs->Log("BANCACHE", LOG_DEBUG, "BanCache: Positive hit for " + New->GetIPString()); if (!ServerInstance->Config->XLineMessage.empty()) - New->WriteNumeric(ERR_YOUREBANNEDCREEP, ":" + ServerInstance->Config->XLineMessage); - this->QuitUser(New, b->Reason); + New->WriteNumeric(ERR_YOUREBANNEDCREEP, ServerInstance->Config->XLineMessage); + + if (ServerInstance->Config->HideBans) + this->QuitUser(New, b->Type + "-lined", &b->Reason); + else + this->QuitUser(New, b->Reason); return; } else @@ -150,23 +236,15 @@ void UserManager::AddUser(int socket, ListenSocket* via, irc::sockets::sockaddrs } } - if (!SocketEngine::AddFd(eh, FD_WANT_FAST_READ | FD_WANT_EDGE_WRITE)) - { - ServerInstance->Logs->Log("USERS", LOG_DEBUG, "Internal error on new connection"); - this->QuitUser(New, "Internal error handling connection"); - } - if (ServerInstance->Config->RawLog) New->WriteNotice("*** Raw I/O logging is enabled on this server. All messages, passwords, and commands are being recorded."); FOREACH_MOD(OnSetUserIP, (New)); - if (New->quitting) - return; - - FOREACH_MOD(OnUserInit, (New)); + if (!New->quitting) + FOREACH_MOD(OnUserPostInit, (New)); } -void UserManager::QuitUser(User* user, const std::string& quitreason, const std::string* operreason) +void UserManager::QuitUser(User* user, const std::string& quitmessage, const std::string* operquitmessage) { if (user->quitting) { @@ -180,22 +258,42 @@ void UserManager::QuitUser(User* user, const std::string& quitreason, const std: return; } - user->quitting = true; + std::string quitmsg(quitmessage); + std::string operquitmsg; + if (operquitmessage) + operquitmsg.assign(*operquitmessage); - ServerInstance->Logs->Log("USERS", LOG_DEBUG, "QuitUser: %s=%s '%s'", user->uuid.c_str(), user->nick.c_str(), quitreason.c_str()); - user->Write("ERROR :Closing link: (%s@%s) [%s]", user->ident.c_str(), user->host.c_str(), operreason ? operreason->c_str() : quitreason.c_str()); + LocalUser* const localuser = IS_LOCAL(user); + if (localuser) + { + ModResult MOD_RESULT; + FIRST_MOD_RESULT(OnUserPreQuit, MOD_RESULT, (localuser, quitmsg, operquitmsg)); + if (MOD_RESULT == MOD_RES_DENY) + return; + } - std::string reason; - reason.assign(quitreason, 0, ServerInstance->Config->Limits.MaxQuit); - if (!operreason) - operreason = &reason; + if (quitmsg.length() > ServerInstance->Config->Limits.MaxQuit) + quitmsg.erase(ServerInstance->Config->Limits.MaxQuit + 1); + + if (operquitmsg.empty()) + operquitmsg.assign(quitmsg); + else if (operquitmsg.length() > ServerInstance->Config->Limits.MaxQuit) + operquitmsg.erase(ServerInstance->Config->Limits.MaxQuit + 1); + + user->quitting = true; + ServerInstance->Logs->Log("USERS", LOG_DEBUG, "QuitUser: %s=%s '%s'", user->uuid.c_str(), user->nick.c_str(), quitmessage.c_str()); + if (localuser) + { + ClientProtocol::Messages::Error errormsg(InspIRCd::Format("Closing link: (%s@%s) [%s]", user->ident.c_str(), user->GetRealHost().c_str(), operquitmsg.c_str())); + localuser->Send(ServerInstance->GetRFCEvents().error, errormsg); + } ServerInstance->GlobalCulls.AddItem(user); if (user->registered == REG_ALL) { - FOREACH_MOD(OnUserQuit, (user, reason, *operreason)); - WriteCommonQuit(user, reason, *operreason); + FOREACH_MOD(OnUserQuit, (user, quitmsg, operquitmsg)); + WriteCommonQuit(user, quitmsg, operquitmsg); } else unregistered_count--; @@ -207,7 +305,7 @@ void UserManager::QuitUser(User* user, const std::string& quitreason, const std: lu->eh.Close(); if (lu->registered == REG_ALL) - ServerInstance->SNO->WriteToSnoMask('q',"Client exiting: %s (%s) [%s]", user->GetFullRealHost().c_str(), user->GetIPString().c_str(), operreason->c_str()); + ServerInstance->SNO->WriteToSnoMask('q',"Client exiting: %s (%s) [%s]", user->GetFullRealHost().c_str(), user->GetIPString().c_str(), operquitmsg.c_str()); local_users.erase(lu); } @@ -216,6 +314,7 @@ void UserManager::QuitUser(User* user, const std::string& quitreason, const std: uuidlist.erase(user->uuid); user->PurgeEmptyChannels(); + user->UnOper(); } void UserManager::AddClone(User* user) @@ -270,36 +369,23 @@ void UserManager::ServerNoticeAll(const char* text, ...) { std::string message; VAFORMAT(message, text, text); - message = "NOTICE $" + ServerInstance->Config->ServerName + " :" + message; + ClientProtocol::Messages::Privmsg msg(ClientProtocol::Messages::Privmsg::nocopy, ServerInstance->FakeClient, ServerInstance->Config->GetServerName(), message, MSG_NOTICE); + ClientProtocol::Event msgevent(ServerInstance->GetRFCEvents().privmsg, msg); for (LocalList::const_iterator i = local_users.begin(); i != local_users.end(); ++i) { - User* t = *i; - t->WriteServ(message); + LocalUser* user = *i; + user->Send(msgevent); } } -/* this returns true when all modules are satisfied that the user should be allowed onto the irc server - * (until this returns true, a user will block in the waiting state, waiting to connect up to the - * registration timeout maximum seconds) - */ -bool UserManager::AllModulesReportReady(LocalUser* user) -{ - ModResult res; - FIRST_MOD_RESULT(OnCheckReady, res, (user)); - return (res == MOD_RES_PASSTHRU); -} - /** * This function is called once a second from the mainloop. - * It is intended to do background checking on all the user structs, e.g. - * stuff like ping checks, registration timeouts, etc. + * It is intended to do background checking on all the users, e.g. do + * ping checks, registration timeouts, etc. */ void UserManager::DoBackgroundUserStuff() { - /* - * loop over all local users.. - */ for (LocalList::iterator i = local_users.begin(); i != local_users.end(); ) { // It's possible that we quit the user below due to ping timeout etc. and QuitUser() removes it from the list @@ -319,45 +405,16 @@ void UserManager::DoBackgroundUserStuff() switch (curr->registered) { case REG_ALL: - if (ServerInstance->Time() >= curr->nping) - { - // This user didn't answer the last ping, remove them - if (!curr->lastping) - { - time_t time = ServerInstance->Time() - (curr->nping - curr->MyClass->GetPingTime()); - const std::string message = "Ping timeout: " + ConvToStr(time) + (time != 1 ? " seconds" : " second"); - this->QuitUser(curr, message); - continue; - } - - curr->Write("PING :" + ServerInstance->Config->ServerName); - curr->lastping = 0; - curr->nping = ServerInstance->Time() + curr->MyClass->GetPingTime(); - } + CheckPingTimeout(curr); break; + case REG_NICKUSER: - if (AllModulesReportReady(curr)) - { - /* User has sent NICK/USER, modules are okay, DNS finished. */ - curr->FullConnect(); - continue; - } - - // If the user has been quit in OnCheckReady then we shouldn't - // quit them again for having a registration timeout. - if (curr->quitting) - continue; + CheckModulesReady(curr); break; - } - if (curr->registered != REG_ALL && curr->MyClass && (ServerInstance->Time() > (curr->signon + curr->MyClass->GetRegTimeout()))) - { - /* - * registration timeout -- didnt send USER/NICK/HOST - * in the time specified in their connection class. - */ - this->QuitUser(curr, "Registration timeout"); - continue; + default: + CheckRegistrationTimeout(curr); + break; } } }