X-Git-Url: https://git.netwichtig.de/gitweb/?a=blobdiff_plain;f=src%2Fuserprocess.cpp;h=62cd452cd182aee2e67e743897d3a8b7f7b115bc;hb=525eeb51a52ca9dbd001f0897222f6e5a3dccfb1;hp=1acbb65475bb205498bb6b74c980582866362c74;hpb=7972cc32495597ac411a51a40d41e0bb42f80a44;p=user%2Fhenk%2Fcode%2Finspircd.git diff --git a/src/userprocess.cpp b/src/userprocess.cpp index 1acbb6547..62cd452cd 100644 --- a/src/userprocess.cpp +++ b/src/userprocess.cpp @@ -2,395 +2,232 @@ * | Inspire Internet Relay Chat Daemon | * +------------------------------------+ * - * Inspire is copyright (C) 2002-2005 ChatSpike-Dev. - * E-mail: - * - * + * InspIRCd: (C) 2002-2008 InspIRCd Development Team + * See: http://www.inspircd.org/wiki/index.php/Credits * - * Written by Craig Edwards, Craig McLure, and others. * This program is free but copyrighted software; see * the file COPYING for details. * * --------------------------------------------------- */ -/* Now with added unF! ;) */ +/* $Core: libIRCDuserprocess */ -using namespace std; - -#include "inspircd_config.h" #include "inspircd.h" -#include "inspircd_io.h" -#include -#include -#include -#include -#include -#include -#include -#ifdef GCC3 -#include -#else -#include -#endif -#include -#include -#include -#include -#include -#ifdef THREADED_DNS -#include -#endif -#include "users.h" -#include "ctables.h" -#include "globals.h" -#include "modules.h" -#include "dynamic.h" #include "wildcard.h" -#include "message.h" -#include "mode.h" -#include "commands.h" #include "xline.h" -#include "inspstring.h" -#include "dnsqueue.h" -#include "helperfuncs.h" -#include "hashcomp.h" #include "socketengine.h" -#include "typedefs.h" #include "command_parse.h" -#include "cull_list.h" - -extern int MODCOUNT; -extern struct sockaddr_in client,server; -extern socklen_t length; -extern std::vector modules; -extern std::vector factory; -extern std::vector module_sockets; -extern time_t TIME; -extern time_t OLDTIME; -extern std::vector local_users; -extern InspIRCd* ServerInstance; -extern ServerConfig *Config; -extern userrec* fd_ref_table[65536]; -char data[65536]; +void FloodQuitUserHandler::Call(User* current) +{ + Server->Logs->Log("USERS",DEFAULT,"Excess flood from: %s@%s", current->ident, current->host); + Server->SNO->WriteToSnoMask('f',"Excess flood from: %s%s%s@%s", + current->registered == REG_ALL ? current->nick : "", + current->registered == REG_ALL ? "!" : "", current->ident, current->host); + User::QuitUser(Server, current, "Excess flood"); -extern user_hash clientlist; -extern chan_hash chanlist; + if (current->registered != REG_ALL) + { + ZLine* zl = new ZLine(Server, Server->Time(), 0, Server->Config->ServerName, "Flood from unregistered connection", current->GetIPString()); + if (Server->XLines->AddLine(zl,NULL)) + Server->XLines->ApplyLines(); + else + delete zl; + } +} -void ProcessUser(userrec* cu) +void ProcessUserHandler::Call(User* cu) { - int result = EAGAIN; - log(DEBUG,"Processing user with fd %d",cu->fd); - if (Config->GetIOHook(cu->port)) + int result = EAGAIN; + + if (cu->GetFd() == FD_MAGIC_NUMBER) + return; + + char* ReadBuffer = Server->GetReadBuffer(); + + if (Server->Config->GetIOHook(cu->GetPort())) { - int result2 = 0; - int MOD_RESULT = Config->GetIOHook(cu->port)->OnRawSocketRead(cu->fd,data,65535,result2); - log(DEBUG,"Data result returned by module: %d",MOD_RESULT); + int result2 = 0; + int MOD_RESULT = 0; + + try + { + MOD_RESULT = Server->Config->GetIOHook(cu->GetPort())->OnRawSocketRead(cu->GetFd(),ReadBuffer,Server->Config->NetBufferSize,result2); + } + catch (CoreException& modexcept) + { + Server->Logs->Log("USERS",DEBUG, "%s threw an exception: %s", modexcept.GetSource(), modexcept.GetReason()); + } + if (MOD_RESULT < 0) { - result = EAGAIN; + result = -EAGAIN; } else { - result = result2; + result = result2; } } else { - result = cu->ReadData(data, 65535); + result = cu->ReadData(ReadBuffer, sizeof(ReadBuffer)); } - log(DEBUG,"Read result: %d",result); - if (result) - { - ServerInstance->stats->statsRecv += result; - // perform a check on the raw buffer as an array (not a string!) to remove - // characters 0 and 7 which are illegal in the RFC - replace them with spaces. - // hopefully this should stop even more people whining about "Unknown command: *" - for (int checker = 0; checker < result; checker++) - { - if ((data[checker] == 0) || (data[checker] == 7)) - data[checker] = ' '; - } - if (result > 0) - data[result] = '\0'; - userrec* current = cu; - int currfd = current->fd; - int floodlines = 0; - // add the data to the users buffer - if (result > 0) - { - if (!current->AddBuffer(data)) - { - // AddBuffer returned false, theres too much data in the user's buffer and theyre up to no good. - if (current->registered == 7) - { - kill_link(current,"RecvQ exceeded"); - } - else - { - WriteOpers("*** Excess flood from %s",current->ip); - log(DEFAULT,"Excess flood from: %s",current->ip); - add_zline(120,Config->ServerName,"Flood from unregistered connection",current->ip); - apply_lines(APPLY_ZLINES); - } - return; - } - if (current->recvq.length() > (unsigned)Config->NetBufferSize) - { - if (current->registered == 7) - { - kill_link(current,"RecvQ exceeded"); - } - else - { - WriteOpers("*** Excess flood from %s",current->ip); - log(DEFAULT,"Excess flood from: %s",current->ip); - add_zline(120,Config->ServerName,"Flood from unregistered connection",current->ip); - apply_lines(APPLY_ZLINES); - } - return; - } - // while there are complete lines to process... - while (current->BufferIsReady()) - { - floodlines++; - if (TIME > current->reset_due) - { - current->reset_due = TIME + current->threshold; - current->lines_in = 0; - } - current->lines_in++; - if (current->lines_in > current->flood) - { - log(DEFAULT,"Excess flood from: %s!%s@%s",current->nick,current->ident,current->host); - WriteOpers("*** Excess flood from: %s!%s@%s",current->nick,current->ident,current->host); - kill_link(current,"Excess flood"); - return; - } - if ((floodlines > current->flood) && (current->flood != 0)) - { - if (current->registered == 7) - { - log(DEFAULT,"Excess flood from: %s!%s@%s",current->nick,current->ident,current->host); - WriteOpers("*** Excess flood from: %s!%s@%s",current->nick,current->ident,current->host); - kill_link(current,"Excess flood"); - } - else - { - add_zline(120,Config->ServerName,"Flood from unregistered connection",current->ip); - apply_lines(APPLY_ZLINES); - } - return; - } - char sanitized[MAXBUF]; - // use GetBuffer to copy single lines into the sanitized string - std::string single_line = current->GetBuffer(); - current->bytes_in += single_line.length(); - current->cmds_in++; - if (single_line.length()>512) - { - log(DEFAULT,"Excess flood from: %s!%s@%s",current->nick,current->ident,current->host); - WriteOpers("*** Excess flood from: %s!%s@%s",current->nick,current->ident,current->host); - kill_link(current,"Excess flood"); - return; - } - strlcpy(sanitized,single_line.c_str(),MAXBUF); - if (*sanitized) - { - userrec* old_comp = fd_ref_table[currfd]; - // we're gonna re-scan to check if the nick is gone, after every - // command - if it has, we're gonna bail - ServerInstance->Parser->ProcessBuffer(sanitized,current); - // look for the user's record in case it's changed... if theyve quit, - // we cant do anything more with their buffer, so bail. - // there used to be an ugly, slow loop here. Now we have a reference - // table, life is much easier (and FASTER) - userrec* new_comp = fd_ref_table[currfd]; - if ((currfd < 0) || (!fd_ref_table[currfd]) || (old_comp != new_comp)) - { - return; - } - else - { - /* The user is still here, flush their buffer */ - current->FlushWriteBuf(); - } - } - } - return; - } - if ((result == -1) && (errno != EAGAIN) && (errno != EINTR)) - { - log(DEBUG,"killing: %s",cu->nick); - kill_link(cu,strerror(errno)); - return; - } - } - // result EAGAIN means nothing read - else if (result == EAGAIN) - { - } - else if (result == 0) - { - log(DEBUG,"InspIRCd: Exited: %s",cu->nick); - kill_link(cu,"Client exited"); - log(DEBUG,"Bailing from client exit"); - return; - } -} + if ((result) && (result != -EAGAIN)) + { + User *current; + int currfd; + + Server->stats->statsRecv += result; + /* + * perform a check on the raw buffer as an array (not a string!) to remove + * character 0 which is illegal in the RFC - replace them with spaces. + */ + + for (int checker = 0; checker < result; checker++) + { + if (ReadBuffer[checker] == 0) + ReadBuffer[checker] = ' '; + } + + if (result > 0) + ReadBuffer[result] = '\0'; + + current = cu; + currfd = current->GetFd(); + + // add the data to the users buffer + if (result > 0) + { + if (!current->AddBuffer(ReadBuffer)) + { + // AddBuffer returned false, theres too much data in the user's buffer and theyre up to no good. + if (current->registered == REG_ALL) + { + if (current->MyClass) + { + // Make sure they arn't flooding long lines. + if (Server->Time() > current->reset_due) + { + current->reset_due = Server->Time() + current->MyClass->GetThreshold(); + current->lines_in = 0; + } + + current->lines_in++; + + if (current->MyClass->GetFlood() && current->lines_in > current->MyClass->GetFlood()) + Server->FloodQuitUser(current); + else + { + current->WriteServ("NOTICE %s :Your previous line was too long and was not delivered (Over %d chars) Please shorten it.", current->nick, MAXBUF-2); + current->recvq.clear(); + } + } + } + else + Server->FloodQuitUser(current); + + return; + } + + /* If user is over penalty, dont process here, just build up */ + if (!current->OverPenalty) + Server->Parser->DoLines(current); + + return; + } + + if ((result == -1) && (errno != EAGAIN) && (errno != EINTR)) + { + User::QuitUser(Server, cu, errno ? strerror(errno) : "EOF from client"); + return; + } + } -CullList* GlobalGoners; + // result EAGAIN means nothing read + else if ((result == EAGAIN) || (result == -EAGAIN)) + { + /* do nothing */ + } + else if (result == 0) + { + User::QuitUser(Server, cu, "Connection closed"); + return; + } +} /** * 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. - * The function returns false when it is finished, and true if - * it needs to be run again (e.g. it has processed one of a batch of - * QUIT messages, but couldnt continue iterating because the iterator - * became invalid). This function is also responsible for checking - * if InspSocket derived classes are timed out. */ -bool DoBackgroundUserStuff(time_t TIME) +void InspIRCd::DoBackgroundUserStuff() { - unsigned int numsockets = module_sockets.size(); - SocketEngine* SE = ServerInstance->SE; - for (std::vector::iterator a = module_sockets.begin(); a < module_sockets.end(); a++) - { - InspSocket* s = (InspSocket*)*a; - if (s->Timeout(TIME)) - { - log(DEBUG,"Socket poll returned false, close and bail"); - SE->DelFd(s->GetFd()); - s->Close(); - module_sockets.erase(a); - delete s; - break; - } - if (module_sockets.size() != numsockets) break; - } - GlobalGoners = new CullList(); - for (std::vector::iterator count2 = local_users.begin(); count2 != local_users.end(); count2++) - { - /* Sanity checks for corrupted iterators (yes, really) */ - userrec* curr = NULL; - if (*count2) - curr = (userrec*)(*count2); - if ((long)curr == -1) - return false; - - if ((curr) && (curr->fd != 0)) /* XXX - why are we checking fd != 0? --w00t */ - { - // we don't check the state of remote users. - if (IS_LOCAL(curr)) - { - if (curr->GetWriteError() != "") - { - log(DEBUG,"InspIRCd: write error: %s",curr->GetWriteError().c_str()); - GlobalGoners->AddItem(curr,curr->GetWriteError()); - continue; - } - // registration timeout -- didnt send USER/NICK/HOST in the time specified in - // their connection class. - if (((unsigned)TIME > (unsigned)curr->timeout) && (curr->registered != 7)) - { - log(DEBUG,"InspIRCd: registration timeout: %s",curr->nick); - GlobalGoners->AddItem(curr,"Registration timeout"); - continue; - } - if ((TIME > curr->signon) && (curr->registered == 3) && (AllModulesReportReady(curr))) - { - log(DEBUG,"signon exceed, registered=3, and modules ready, OK: %d %d",TIME,curr->signon); - curr->dns_done = true; - ServerInstance->stats->statsDnsBad++; - FullConnectUser(curr,GlobalGoners); - continue; - } - if ((curr->dns_done) && (curr->registered == 3) && (AllModulesReportReady(curr))) - { - log(DEBUG,"dns done, registered=3, and modules ready, OK"); - FullConnectUser(curr,GlobalGoners); - continue; - } - if ((TIME > curr->nping) && (isnick(curr->nick)) && (curr->registered == 7)) - { - if ((!curr->lastping) && (curr->registered == 7)) - { - log(DEBUG,"InspIRCd: ping timeout: %s",curr->nick); - GlobalGoners->AddItem(curr,"Ping timeout"); - continue; - } - Write(curr->fd,"PING :%s",Config->ServerName); - log(DEBUG,"InspIRCd: pinging: %s",curr->nick); - curr->lastping = 0; - curr->nping = TIME+curr->pingmax; // was hard coded to 120 - } - curr->FlushWriteBuf(); - } - } - } - GlobalGoners->Apply(); - delete GlobalGoners; - return false; -} + /* + * loop over all local users.. + */ + for (std::vector::iterator count2 = this->Users->local_users.begin(); count2 != this->Users->local_users.end(); count2++) + { + User *curr = *count2; -void OpenLog(char** argv, int argc) -{ - std::string logpath = GetFullProgDir(argv,argc) + "/ircd.log"; - Config->log_file = fopen(logpath.c_str(),"a+"); - if (!Config->log_file) - { - printf("ERROR: Could not write to logfile %s, bailing!\n\n",logpath.c_str()); - Exit(ERROR); - } -#ifdef IS_CYGWIN - printf("Logging to ircd.log...\n"); -#else - printf("Logging to %s...\n",logpath.c_str()); -#endif -} + if (curr->Penalty) + { + curr->Penalty--; + if (curr->Penalty < 10) + Parser->DoLines(curr, true); + } + if (curr->OverPenalty) + { + if (curr->sendq.empty()) + curr->OverPenalty = false; + } -void CheckRoot() -{ - if (geteuid() == 0) - { - printf("WARNING!!! You are running an irc server as ROOT!!! DO NOT DO THIS!!!\n\n"); - log(DEFAULT,"InspIRCd: startup: not starting with UID 0!"); - Exit(ERROR); - } -} + if ((curr->registered != REG_ALL) && (TIME > curr->timeout)) + { + /* + * registration timeout -- didnt send USER/NICK/HOST + * in the time specified in their connection class. + */ + User::QuitUser(this, curr, "Registration timeout"); + continue; + } + /* + * `ready` means that the user has provided NICK/USER(/PASS), and all modules agree + * that the user is okay to proceed. The one thing we are then waiting for now is DNS... + */ + bool ready = ((curr->registered == REG_NICKUSER) && AllModulesReportReady(curr)); -void CheckDie() -{ - if (*Config->DieValue) - { - printf("WARNING: %s\n\n",Config->DieValue); - log(DEFAULT,"Ut-Oh, somebody didn't read their config file: '%s'",Config->DieValue); - exit(0); - } -} + if (ready) + { + if (curr->dns_done) + { + /* DNS passed, connect the user */ + curr->FullConnect(); + continue; + } + } -void LoadAllModules(InspIRCd* ServerInstance) -{ - /* We must load the modules AFTER initializing the socket engine, now */ - MODCOUNT = -1; - char configToken[MAXBUF]; - for (int count = 0; count < Config->ConfValueEnum("module",&Config->config_f); count++) - { - Config->ConfValue("module","name",count,configToken,&Config->config_f); - printf("Loading module... \033[1;32m%s\033[0m\n",configToken); - if (!ServerInstance->LoadModule(configToken)) - { - log(DEFAULT,"Exiting due to a module loader error."); - printf("\nThere was an error loading a module: %s\n\nYou might want to do './inspircd start' instead of 'bin/inspircd'\n\n",ServerInstance->ModuleError()); - Exit(0); - } - } - log(DEFAULT,"Total loaded modules: %lu",(unsigned long)MODCOUNT+1); + // It's time to PING this user. Send them a ping. + if ((TIME > curr->nping) && (curr->registered == REG_ALL)) + { + // This user didn't answer the last ping, remove them + if (!curr->lastping) + { + time_t time = this->Time() - (curr->nping - curr->MyClass->GetPingTime()); + char message[MAXBUF]; + snprintf(message, MAXBUF, "Ping timeout: %ld second%s", (long)time, time > 1 ? "s" : ""); + curr->lastping = 1; + curr->nping = TIME + curr->MyClass->GetPingTime(); + User::QuitUser(this, curr, message); + continue; + } + curr->Write("PING :%s",this->Config->ServerName); + curr->lastping = 0; + curr->nping = TIME +curr->MyClass->GetPingTime(); + } + } } -