X-Git-Url: https://git.netwichtig.de/gitweb/?a=blobdiff_plain;f=src%2Fhelperfuncs.cpp;h=6a831bb049bcdf67ef89a6285deed3febe9dbdef;hb=48869b38e938de4d8dd4cdff486b10348e81f7b6;hp=1f2a6646b5ea838ef952f77feaa25dad8656ab50;hpb=2591562ada4cb1f866e5d1c98340fb19332b3844;p=user%2Fhenk%2Fcode%2Finspircd.git diff --git a/src/helperfuncs.cpp b/src/helperfuncs.cpp index 1f2a6646b..6a831bb04 100644 --- a/src/helperfuncs.cpp +++ b/src/helperfuncs.cpp @@ -1,1013 +1,491 @@ -/* +------------------------------------+ - * | Inspire Internet Relay Chat Daemon | - * +------------------------------------+ +/* + * InspIRCd -- Internet Relay Chat Daemon + * + * Copyright (C) 2009-2010 Daniel De Graaf + * Copyright (C) 2006-2008 Robin Burchell + * Copyright (C) 2005-2008 Craig Edwards + * Copyright (C) 2008 Thomas Stagner + * Copyright (C) 2006-2007 Oliver Lupton + * Copyright (C) 2007 Dennis Friis * - * InspIRCd is copyright (C) 2002-2006 ChatSpike-Dev. - * E-mail: - * - * + * 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 + * License as published by the Free Software Foundation, version 2. * - * Written by Craig Edwards, Craig McLure, and others. - * This program is free but copyrighted software; see - * the file COPYING for details. + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS + * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more + * details. * - * --------------------------------------------------- + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . */ -#include -#include "inspircd_config.h" -#include "configreader.h" -#include -#include -#include -#include -#include -#include -#include -#ifdef HAS_EXECINFO -#include -#endif -#include "connection.h" -#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 "xline.h" -#include "commands.h" -#include "inspstring.h" -#include "helperfuncs.h" -#include "hashcomp.h" -#include "typedefs.h" -#include "inspircd.h" - -extern int MODCOUNT; -extern ModuleList modules; -extern InspIRCd* ServerInstance; -extern time_t TIME; -extern char lowermap[255]; -extern std::vector all_opers; -char LOG_FILE[MAXBUF]; +#ifdef _WIN32 +#define _CRT_RAND_S +#include +#endif -static char TIMESTR[26]; -static time_t LAST = 0; +#include "inspircd.h" +#include "xline.h" +#include "exitcodes.h" +#include -/** Log() - * Write a line of text `text' to the logfile (and stdout, if in nofork) if the level `level' - * is greater than the configured loglevel. - */ -void InspIRCd::Log(int level, const char* text, ...) +/* Find a user record by nickname and return a pointer to it */ +User* InspIRCd::FindNick(const std::string &nick) { - va_list argsPtr; - char textbuffer[MAXBUF]; + if (!nick.empty() && isdigit(*nick.begin())) + return FindUUID(nick); - va_start(argsPtr, text); - vsnprintf(textbuffer, MAXBUF, text, argsPtr); - va_end(argsPtr); + user_hash::iterator iter = this->Users->clientlist->find(nick); - InspIRCd::Log(level, std::string(textbuffer)); + if (iter == this->Users->clientlist->end()) + /* Couldn't find it */ + return NULL; + + return iter->second; } -void InspIRCd::Log(int level, const std::string &text) +User* InspIRCd::FindNickOnly(const std::string &nick) { - if (!ServerInstance || !ServerInstance->Config) - return; - - /* If we were given -debug we output all messages, regardless of configured loglevel */ - if ((level < ServerInstance->Config->LogLevel) && !ServerInstance->Config->forcedebug) - return; + user_hash::iterator iter = this->Users->clientlist->find(nick); - if (TIME != LAST) - { - struct tm *timeinfo = localtime(&TIME); - - strlcpy(TIMESTR,asctime(timeinfo),26); - TIMESTR[24] = ':'; - LAST = TIME; - } - - if (ServerInstance->Config->log_file && ServerInstance->Config->writelog) - { - fprintf(ServerInstance->Config->log_file,"%s %s\n",TIMESTR,text.c_str()); - fflush(ServerInstance->Config->log_file); - } + if (iter == this->Users->clientlist->end()) + return NULL; - if (ServerInstance->Config->nofork) - { - printf("%s %s\n", TIMESTR, text.c_str()); - } + return iter->second; } -std::string GetServerDescription(const char* servername) +User *InspIRCd::FindUUID(const std::string &uid) { - std::string description = ""; + user_hash::iterator finduuid = this->Users->uuidlist->find(uid); - FOREACH_MOD(I_OnGetServerDescription,OnGetServerDescription(servername,description)); + if (finduuid == this->Users->uuidlist->end()) + return NULL; - if (description != "") - { - return description; - } - else - { - // not a remote server that can be found, it must be me. - return ServerInstance->Config->ServerDesc; - } + return finduuid->second; } +/* find a channel record by channel name and return a pointer to it */ -/* XXX - We don't use WriteMode for this because WriteMode is very slow and - * this isnt. Basically WriteMode has to iterate ALL the users 'n' times for - * the number of modes provided, e.g. if you send WriteMode 'og' to write to - * opers with globops, and you have 2000 users, thats 4000 iterations. WriteOpers - * uses the oper list, which means if you have 2000 users but only 5 opers, - * it iterates 5 times. - */ -void WriteOpers(const char* text, ...) +Channel* InspIRCd::FindChan(const std::string &chan) { - char textbuffer[MAXBUF]; - va_list argsPtr; + chan_hash::iterator iter = chanlist->find(chan); - if (!text) - { - log(DEFAULT,"*** BUG *** WriteOpers was given an invalid parameter"); - return; - } - - va_start(argsPtr, text); - vsnprintf(textbuffer, MAXBUF, text, argsPtr); - va_end(argsPtr); + if (iter == chanlist->end()) + /* Couldn't find it */ + return NULL; - WriteOpers_NoFormat(textbuffer); + return iter->second; } -void WriteOpers_NoFormat(const char* text) +/* Send an error notice to all users, registered or not */ +void InspIRCd::SendError(const std::string &s) { - if (!text) + for (LocalUserList::const_iterator i = this->Users->local_users.begin(); i != this->Users->local_users.end(); i++) { - log(DEFAULT,"*** BUG *** WriteOpers_NoFormat was given an invalid parameter"); - return; - } - - for (std::vector::iterator i = all_opers.begin(); i != all_opers.end(); i++) - { - userrec* a = *i; - - if (IS_LOCAL(a)) + User* u = *i; + if (u->registered == REG_ALL) { - if (a->modes[UM_SERVERNOTICE]) - { - // send server notices to all with +s - a->WriteServ("NOTICE %s :%s",a->nick,text); - } + u->WriteNotice(s); + } + else + { + /* Unregistered connections receive ERROR, not a NOTICE */ + u->Write("ERROR :" + s); } } } -void InspIRCd::ServerNoticeAll(char* text, ...) -{ - if (!text) - return; - - char textbuffer[MAXBUF]; - char formatbuffer[MAXBUF]; - va_list argsPtr; - va_start (argsPtr, text); - vsnprintf(textbuffer, MAXBUF, text, argsPtr); - va_end(argsPtr); - - snprintf(formatbuffer,MAXBUF,"NOTICE $%s :%s",ServerInstance->Config->ServerName,textbuffer); - - for (std::vector::const_iterator i = local_users.begin(); i != local_users.end(); i++) - { - userrec* t = *i; - t->WriteServ(std::string(formatbuffer)); - } -} - -void InspIRCd::ServerPrivmsgAll(char* text, ...) -{ - if (!text) - return; - - char textbuffer[MAXBUF]; - char formatbuffer[MAXBUF]; - va_list argsPtr; - va_start (argsPtr, text); - vsnprintf(textbuffer, MAXBUF, text, argsPtr); - va_end(argsPtr); - - snprintf(formatbuffer,MAXBUF,"PRIVMSG $%s :%s",ServerInstance->Config->ServerName,textbuffer); - - for (std::vector::const_iterator i = local_users.begin(); i != local_users.end(); i++) - { - userrec* t = *i; - t->WriteServ(std::string(formatbuffer)); - } -} - -void InspIRCd::WriteMode(const char* modes, int flags, const char* text, ...) +bool InspIRCd::IsValidMask(const std::string &mask) { - char textbuffer[MAXBUF]; - int modelen; - va_list argsPtr; - - if ((!text) || (!modes) || (!flags)) - { - log(DEFAULT,"*** BUG *** WriteMode was given an invalid parameter"); - return; - } - - va_start(argsPtr, text); - vsnprintf(textbuffer, MAXBUF, text, argsPtr); - va_end(argsPtr); - modelen = strlen(modes); + const char* dest = mask.c_str(); + int exclamation = 0; + int atsign = 0; - for (std::vector::const_iterator i = local_users.begin(); i != local_users.end(); i++) + for (const char* i = dest; *i; i++) { - userrec* t = (userrec*)(*i); - bool send_to_user = false; - - if (flags == WM_AND) + /* out of range character, bad mask */ + if (*i < 32 || *i > 126) { - send_to_user = true; - - for (int n = 0; n < modelen; n++) - { - if (!t->modes[modes[n]-65]) - { - send_to_user = false; - break; - } - } - } - else if (flags == WM_OR) - { - send_to_user = false; - - for (int n = 0; n < modelen; n++) - { - if (t->modes[modes[n]-65]) - { - send_to_user = true; - break; - } - } + return false; } - if (send_to_user) + switch (*i) { - t->WriteServ("NOTICE %s :%s",t->nick,textbuffer); + case '!': + exclamation++; + break; + case '@': + atsign++; + break; } } -} - -/* convert a string to lowercase. Note following special circumstances - * taken from RFC 1459. Many "official" server branches still hold to this - * rule so i will too; - * - * Because of IRC's scandanavian origin, the characters {}| are - * considered to be the lower case equivalents of the characters []\, - * respectively. This is a critical issue when determining the - * equivalence of two nicknames. - */ -void strlower(char *n) -{ - if (n) - { - for (char* t = n; *t; t++) - *t = lowermap[(unsigned char)*t]; - } -} -/* Find a user record by nickname and return a pointer to it */ - -userrec* Find(const std::string &nick) -{ - user_hash::iterator iter = ServerInstance->clientlist.find(nick); + /* valid masks only have 1 ! and @ */ + if (exclamation != 1 || atsign != 1) + return false; - if (iter == ServerInstance->clientlist.end()) - /* Couldn't find it */ - return NULL; + if (mask.length() > 250) + return false; - return iter->second; + return true; } -userrec* Find(const char* nick) +void InspIRCd::StripColor(std::string &sentence) { - user_hash::iterator iter; - - if (!nick) - return NULL; + /* refactor this completely due to SQUIT bug since the old code would strip last char and replace with \0 --peavey */ + int seq = 0; - iter = ServerInstance->clientlist.find(nick); - - if (iter == ServerInstance->clientlist.end()) - return NULL; + for (std::string::iterator i = sentence.begin(); i != sentence.end();) + { + if (*i == 3) + seq = 1; + else if (seq && (( ((*i >= '0') && (*i <= '9')) || (*i == ',') ) )) + { + seq++; + if ( (seq <= 4) && (*i == ',') ) + seq = 1; + else if (seq > 3) + seq = 0; + } + else + seq = 0; - return iter->second; + if (seq || ((*i == 2) || (*i == 15) || (*i == 22) || (*i == 21) || (*i == 31))) + i = sentence.erase(i); + else + ++i; + } } -/* find a channel record by channel name and return a pointer to it */ - -chanrec* FindChan(const char* chan) +void InspIRCd::ProcessColors(file_cache& input) { - chan_hash::iterator iter; - - if (!chan) + /* + * Replace all color codes from the special[] array to actual + * color code chars using C++ style escape sequences. You + * can append other chars to replace if you like -- Justasic + */ + static struct special_chars { - log(DEFAULT,"*** BUG *** Findchan was given an invalid parameter"); - return NULL; + std::string character; + std::string replace; + special_chars(const std::string &c, const std::string &r) : character(c), replace(r) { } } - iter = ServerInstance->chanlist.find(chan); - - if (iter == ServerInstance->chanlist.end()) - /* Couldn't find it */ - return NULL; + special[] = { + special_chars("\\002", "\002"), // Bold + special_chars("\\037", "\037"), // underline + special_chars("\\003", "\003"), // Color + special_chars("\\017", "\017"), // Stop colors + special_chars("\\u", "\037"), // Alias for underline + special_chars("\\b", "\002"), // Alias for Bold + special_chars("\\x", "\017"), // Alias for stop + special_chars("\\c", "\003"), // Alias for color + special_chars("", "") + }; - return iter->second; -} - - -long GetMaxBans(char* name) -{ - std::string x; - for (std::map::iterator n = ServerInstance->Config->maxbans.begin(); n != ServerInstance->Config->maxbans.end(); n++) + for(file_cache::iterator it = input.begin(), it_end = input.end(); it != it_end; it++) { - x = n->first; - if (match(name,x.c_str())) + std::string ret = *it; + for(int i = 0; special[i].character.empty() == false; ++i) { - return n->second; - } - } - return 64; -} + std::string::size_type pos = ret.find(special[i].character); + if(pos == std::string::npos) // Couldn't find the character, skip this line + continue; -void purge_empty_chans(userrec* u) -{ - std::vector to_delete; + if((pos > 0) && (ret[pos-1] == '\\') && (ret[pos] == '\\')) + continue; // Skip double slashes. - // firstly decrement the count on each channel - for (std::vector::iterator f = u->chans.begin(); f != u->chans.end(); f++) - { - ucrec* uc = (ucrec*)(*f); - if (uc->channel) - { - if (uc->channel->DelUser(u) == 0) + // Replace all our characters in the array + while(pos != std::string::npos) { - /* No users left in here, mark it for deletion */ - to_delete.push_back(uc->channel); - uc->channel = NULL; + ret = ret.substr(0, pos) + special[i].replace + ret.substr(pos + special[i].character.size()); + pos = ret.find(special[i].character, pos + special[i].replace.size()); } } - } - log(DEBUG,"purge_empty_chans: %d channels to delete",to_delete.size()); - - for (std::vector::iterator n = to_delete.begin(); n != to_delete.end(); n++) - { - chanrec* thischan = (chanrec*)*n; - chan_hash::iterator i2 = ServerInstance->chanlist.find(thischan->name); - if (i2 != ServerInstance->chanlist.end()) + // Replace double slashes with a single slash before we return + std::string::size_type pos = ret.find("\\\\"); + while(pos != std::string::npos) { - FOREACH_MOD(I_OnChannelDelete,OnChannelDelete(i2->second)); - DELETE(i2->second); - ServerInstance->chanlist.erase(i2); + ret = ret.substr(0, pos) + "\\" + ret.substr(pos + 2); + pos = ret.find("\\\\", pos + 1); } + *it = ret; } - - u->UnOper(); } - -char* chanmodes(chanrec *chan, bool showkey) +/* true for valid channel name, false else */ +bool IsChannelHandler::Call(const std::string& chname) { - static char scratch[MAXBUF]; - static char sparam[MAXBUF]; - char* offset = scratch; - std::string extparam = ""; - - if (!chan) - { - log(DEFAULT,"*** BUG *** chanmodes was given an invalid parameter"); - *scratch = '\0'; - return scratch; - } + if (chname.empty() || chname.length() > ServerInstance->Config->Limits.ChanMax) + return false; - *scratch = '\0'; - *sparam = '\0'; + if (chname[0] != '#') + return false; - /* This was still iterating up to 190, chanrec::custom_modes is only 64 elements -- Om */ - for(int n = 0; n < 64; n++) + for (std::string::const_iterator i = chname.begin()+1; i != chname.end(); ++i) { - if(chan->modes[n]) + switch (*i) { - *offset++ = n+65; - extparam = ""; - switch (n) - { - case CM_KEY: - extparam = (showkey ? chan->key : ""); - break; - case CM_LIMIT: - extparam = ConvToStr(chan->limit); - break; - case CM_NOEXTERNAL: - case CM_TOPICLOCK: - case CM_INVITEONLY: - case CM_MODERATED: - case CM_SECRET: - case CM_PRIVATE: - /* We know these have no parameters */ - break; - default: - extparam = chan->GetModeParameter(n+65); - break; - } - if (extparam != "") - { - charlcat(sparam,' ',MAXBUF); - strlcat(sparam,extparam.c_str(),MAXBUF); - } + case ' ': + case ',': + case 7: + return false; } } - /* Null terminate scratch */ - *offset = '\0'; - strlcat(scratch,sparam,MAXBUF); - return scratch; + return true; } - -/* compile a userlist of a channel into a string, each nick seperated by - * spaces and op, voice etc status shown as @ and + */ - -void userlist(userrec *user,chanrec *c) +/* true for valid nickname, false else */ +bool IsNickHandler::Call(const std::string& n) { - if ((!c) || (!user)) - { - log(DEFAULT,"*** BUG *** userlist was given an invalid parameter"); - return; - } - - char list[MAXBUF]; - size_t dlen, curlen; - - dlen = curlen = snprintf(list,MAXBUF,"353 %s = %s :", user->nick, c->name); - - int numusers = 0; - char* ptr = list + dlen; - - CUList *ulist= c->GetUsers(); - - /* Improvement by Brain - this doesnt change in value, so why was it inside - * the loop? - */ - bool has_user = c->HasUser(user); + if (n.empty() || n.length() > ServerInstance->Config->Limits.NickMax) + return false; - for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++) + for (std::string::const_iterator i = n.begin(); i != n.end(); ++i) { - if ((!has_user) && (i->second->modes[UM_INVISIBLE])) + if ((*i >= 'A') && (*i <= '}')) { - /* - * user is +i, and source not on the channel, does not show - * nick in NAMES list - */ + /* "A"-"}" can occur anywhere in a nickname */ continue; } - size_t ptrlen = snprintf(ptr, MAXBUF, "%s%s ", cmode(i->second, c), i->second->nick); - - curlen += ptrlen; - ptr += ptrlen; - - numusers++; - - if (curlen > (480-NICKMAX)) + if ((((*i >= '0') && (*i <= '9')) || (*i == '-')) && (i != n.begin())) { - /* list overflowed into multiple numerics */ - user->WriteServ(list); - - /* reset our lengths */ - dlen = curlen = snprintf(list,MAXBUF,"353 %s = %s :", user->nick, c->name); - ptr = list + dlen; - - ptrlen = 0; - numusers = 0; + /* "0"-"9", "-" can occur anywhere BUT the first char of a nickname */ + continue; } - } - - /* if whats left in the list isnt empty, send it */ - if (numusers) - { - user->WriteServ(list); - } -} - -/* - * return a count of the users on a specific channel accounting for - * invisible users who won't increase the count. e.g. for /LIST - */ -int usercount_i(chanrec *c) -{ - int count = 0; - - if (!c) - return 0; - CUList *ulist= c->GetUsers(); - for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++) - { - if (!(i->second->modes[UM_INVISIBLE])) - count++; + /* invalid character! abort */ + return false; } - return count; + return true; } -/* looks up a users password for their connection class (/ tags) - * NOTE: If the or tag specifies an ip, and this user resolves, - * then their ip will be taken as 'priority' anyway, so for example, - * will match joe!bloggs@localhost - */ -ConnectClass GetClass(userrec *user) +/* return true for good ident, false else */ +bool IsIdentHandler::Call(const std::string& n) { - for (ClassVector::iterator i = ServerInstance->Config->Classes.begin(); i != ServerInstance->Config->Classes.end(); i++) + if (n.empty()) + return false; + + for (std::string::const_iterator i = n.begin(); i != n.end(); ++i) { - if ((match(user->GetIPString(),i->host.c_str(),true)) || (match(user->host,i->host.c_str()))) + if ((*i >= 'A') && (*i <= '}')) { - return *i; + continue; } - } - - return *(ServerInstance->Config->Classes.begin()); -} -/* - * sends out an error notice to all connected clients (not to be used - * lightly!) - */ -void InspIRCd::SendError(const char *s) -{ - for (std::vector::const_iterator i = this->local_users.begin(); i != this->local_users.end(); i++) - { - userrec* t = (userrec*)(*i); - if (t->registered == REG_ALL) + if (((*i >= '0') && (*i <= '9')) || (*i == '-') || (*i == '.')) { - t->WriteServ("NOTICE %s :%s",t->nick,s); - } - else - { - // fix - unregistered connections receive ERROR, not NOTICE - t->Write("ERROR :%s",s); + continue; } - } -} - -void Error(int status) -{ - void *array[300]; - size_t size; - char **strings; - - signal(SIGALRM, SIG_IGN); - signal(SIGPIPE, SIG_IGN); - signal(SIGTERM, SIG_IGN); - signal(SIGABRT, SIG_IGN); - signal(SIGSEGV, SIG_IGN); - signal(SIGURG, SIG_IGN); - signal(SIGKILL, SIG_IGN); - log(DEFAULT,"*** fell down a pothole in the road to perfection ***"); -#ifdef HAS_EXECINFO - log(DEFAULT,"Please report the backtrace lines shown below with any bugreport to the bugtracker at http://www.inspircd.org/bugtrack/"); - size = backtrace(array, 30); - strings = backtrace_symbols(array, size); - for (size_t i = 0; i < size; i++) { - log(DEFAULT,"[%d] %s", i, strings[i]); - } - free(strings); - WriteOpers("*** SIGSEGV: Please see the ircd.log for backtrace and report the error to http://www.inspircd.org/bugtrack/"); -#else - log(DEFAULT,"You do not have execinfo.h so i could not backtrace -- on FreeBSD, please install the libexecinfo port."); -#endif - ServerInstance->SendError("Somebody screwed up... Whoops. IRC Server terminating."); - signal(SIGSEGV, SIG_DFL); - if (raise(SIGSEGV) == -1) - { - log(DEFAULT,"What the hell, i couldnt re-raise SIGSEGV! Error: %s",strerror(errno)); - } - Exit(status); -} - -// this function counts all users connected, wether they are registered or NOT. -int InspIRCd::usercnt() -{ - return clientlist.size(); -} - -// this counts only registered users, so that the percentages in /MAP don't mess up when users are sitting in an unregistered state -int InspIRCd::registered_usercount() -{ - int c = 0; - - for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++) - { - c += (i->second->registered == REG_ALL); - } - - return c; -} - -int InspIRCd::usercount_invisible() -{ - int c = 0; - - for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++) - { - c += ((i->second->registered == REG_ALL) && (i->second->modes[UM_INVISIBLE])); - } - return c; -} - -int InspIRCd::usercount_opers() -{ - int c = 0; - - for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++) - { - if (*(i->second->oper)) - c++; - } - return c; -} - -int InspIRCd::usercount_unknown() -{ - int c = 0; - - for (std::vector::const_iterator i = local_users.begin(); i != local_users.end(); i++) - { - userrec* t = (userrec*)(*i); - if (t->registered != REG_ALL) - c++; + return false; } - return c; -} - -long InspIRCd::chancount() -{ - return chanlist.size(); + return true; } -long InspIRCd::local_count() +bool InspIRCd::IsSID(const std::string &str) { - int c = 0; - - for (std::vector::const_iterator i = local_users.begin(); i != local_users.end(); i++) - { - userrec* t = (userrec*)(*i); - if (t->registered == REG_ALL) - c++; - } - - return c; + /* Returns true if the string given is exactly 3 characters long, + * starts with a digit, and the other two characters are A-Z or digits + */ + return ((str.length() == 3) && isdigit(str[0]) && + ((str[1] >= 'A' && str[1] <= 'Z') || isdigit(str[1])) && + ((str[2] >= 'A' && str[2] <= 'Z') || isdigit(str[2]))); } -void ShowMOTD(userrec *user) +void InspIRCd::CheckRoot() { - if (!ServerInstance->Config->MOTD.size()) +#ifndef _WIN32 + if (geteuid() == 0) { - user->WriteServ("422 %s :Message of the day file is missing.",user->nick); - return; + std::cout << "ERROR: You are running an irc server as root! DO NOT DO THIS!" << std::endl << std::endl; + this->Logs->Log("STARTUP", LOG_DEFAULT, "Can't start as root"); + Exit(EXIT_STATUS_ROOT); } - user->WriteServ("375 %s :%s message of the day", user->nick, ServerInstance->Config->ServerName); - - for (unsigned int i = 0; i < ServerInstance->Config->MOTD.size(); i++) - user->WriteServ("372 %s :- %s",user->nick,ServerInstance->Config->MOTD[i].c_str()); - - user->WriteServ("376 %s :End of message of the day.", user->nick); +#endif } -void ShowRULES(userrec *user) +void InspIRCd::SendWhoisLine(User* user, User* dest, int numeric, const std::string &text) { - if (!ServerInstance->Config->RULES.size()) - { - user->WriteServ("NOTICE %s :Rules file is missing.",user->nick); - return; - } - user->WriteServ("NOTICE %s :%s rules",user->nick,ServerInstance->Config->ServerName); + std::string copy_text = text; - for (unsigned int i = 0; i < ServerInstance->Config->RULES.size(); i++) - user->WriteServ("NOTICE %s :%s",user->nick,ServerInstance->Config->RULES[i].c_str()); + ModResult MOD_RESULT; + FIRST_MOD_RESULT(OnWhoisLine, MOD_RESULT, (user, dest, numeric, copy_text)); - user->WriteServ("NOTICE %s :End of %s rules.",user->nick,ServerInstance->Config->ServerName); + if (MOD_RESULT != MOD_RES_DENY) + user->WriteNumeric(numeric, copy_text); } -// this returns 1 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 AllModulesReportReady(userrec* user) +void InspIRCd::SendWhoisLine(User* user, User* dest, int numeric, const char* format, ...) { - if (!ServerInstance->Config->global_implementation[I_OnCheckReady]) - return true; - - for (int i = 0; i <= MODCOUNT; i++) - { - if (ServerInstance->Config->implement_lists[i][I_OnCheckReady]) - { - int res = modules[i]->OnCheckReady(user); - if (!res) - return false; - } - } - - return true; + std::string textbuffer; + VAFORMAT(textbuffer, format, format) + this->SendWhoisLine(user, dest, numeric, textbuffer); } -/* Make Sure Modules Are Avaliable! - * (BugFix By Craig.. See? I do work! :p) - * Modified by brain, requires const char* - * to work with other API functions +/** Refactored by Brain, Jun 2009. Much faster with some clever O(1) array + * lookups and pointer maths. */ - -/* XXX - Needed? */ -bool FileExists (const char* file) +unsigned long InspIRCd::Duration(const std::string &str) { - FILE *input; - if ((input = fopen (file, "r")) == NULL) - { - return(false); - } - else - { - fclose (input); - return(true); - } -} - -char* CleanFilename(char* name) -{ - char* p = name + strlen(name); - while ((p != name) && (*p != '/')) p--; - return (p != name ? ++p : p); -} + unsigned char multiplier = 0; + long total = 0; + long times = 1; + long subtotal = 0; -bool DirValid(char* dirandfile) -{ - char work[MAXBUF]; - char buffer[MAXBUF]; - char otherdir[MAXBUF]; - int p; - - strlcpy(work, dirandfile, MAXBUF); - p = strlen(work); - - // we just want the dir - while (*work) + /* Iterate each item in the string, looking for number or multiplier */ + for (std::string::const_reverse_iterator i = str.rbegin(); i != str.rend(); ++i) { - if (work[p] == '/') + /* Found a number, queue it onto the current number */ + if ((*i >= '0') && (*i <= '9')) { - work[p] = '\0'; - break; + subtotal = subtotal + ((*i - '0') * times); + times = times * 10; } - - work[p--] = '\0'; - } - - // Get the current working directory - if (getcwd(buffer, MAXBUF ) == NULL ) - return false; - - chdir(work); - - if (getcwd(otherdir, MAXBUF ) == NULL ) - return false; - - chdir(buffer); - - size_t t = strlen(work); - - if (strlen(otherdir) >= t) - { - otherdir[t] = '\0'; - - if (!strcmp(otherdir,work)) + else { - return true; - } + /* Found something thats not a number, find out how much + * it multiplies the built up number by, multiply the total + * and reset the built up number. + */ + if (subtotal) + total += subtotal * duration_multi[multiplier]; - return false; + /* Next subtotal please */ + subtotal = 0; + multiplier = *i; + times = 1; + } } - else + if (multiplier) { - return false; + total += subtotal * duration_multi[multiplier]; + subtotal = 0; } + /* Any trailing values built up are treated as raw seconds */ + return total + subtotal; } -std::string GetFullProgDir(char** argv, int argc) +const char* InspIRCd::Format(va_list &vaList, const char* formatString) { - char work[MAXBUF]; - char buffer[MAXBUF]; - char otherdir[MAXBUF]; - int p; + static std::vector formatBuffer(1024); - strlcpy(work,argv[0],MAXBUF); - p = strlen(work); - - // we just want the dir - while (*work) + while (true) { - if (work[p] == '/') + va_list dst; + va_copy(dst, vaList); + + int vsnret = vsnprintf(&formatBuffer[0], formatBuffer.size(), formatString, dst); + va_end(dst); + + if (vsnret > 0 && static_cast(vsnret) < formatBuffer.size()) { - work[p] = '\0'; break; } - work[p--] = '\0'; + formatBuffer.resize(formatBuffer.size() * 2); } - // Get the current working directory - if (getcwd(buffer, MAXBUF) == NULL) - return ""; - - chdir(work); - - if (getcwd(otherdir, MAXBUF) == NULL) - return ""; - - chdir(buffer); - return otherdir; + return &formatBuffer[0]; } -int InsertMode(std::string &output, const char* mode, unsigned short section) +const char* InspIRCd::Format(const char* formatString, ...) { - unsigned short currsection = 1; - unsigned int pos = output.find("CHANMODES=", 0) + 10; // +10 for the length of "CHANMODES=" - - if(section > 4 || section == 0) - { - log(DEBUG, "InsertMode: CHANMODES doesn't have a section %dh :/", section); - return 0; - } - - for(; pos < output.size(); pos++) - { - if(section == currsection) - break; - - if(output[pos] == ',') - currsection++; - } - - output.insert(pos, mode); - return 1; + const char* ret; + VAFORMAT(ret, formatString, formatString); + return ret; } -bool IsValidChannelName(const char *chname) +std::string InspIRCd::TimeString(time_t curtime) { - char *c; - - /* check for no name - don't check for !*chname, as if it is empty, it won't be '#'! */ - if (!chname || *chname != '#') - { - return false; - } - - c = (char *)chname + 1; - while (*c) - { - switch (*c) - { - case ' ': - case ',': - case 7: - return false; - } +#ifdef _WIN32 + if (curtime < 0) + curtime = 0; +#endif - c++; - } - - /* too long a name - note funky pointer arithmetic here. */ - if ((c - chname) > CHANMAX) + struct tm* timeinfo = localtime(&curtime); + if (!timeinfo) { - return false; + curtime = 0; + timeinfo = localtime(&curtime); } - return true; -} - -inline int charlcat(char* x,char y,int z) -{ - char* x__n = x; - int v = 0; - - while(*x__n++) - v++; - - if (v < z - 1) - { - *--x__n = y; - *++x__n = 0; - } + // If the calculated year exceeds four digits or is less than the year 1000, + // the behavior of asctime() is undefined + if (timeinfo->tm_year + 1900 > 9999) + timeinfo->tm_year = 9999 - 1900; + else if (timeinfo->tm_year + 1900 < 1000) + timeinfo->tm_year = 0; - return v; + return std::string(asctime(timeinfo),24); } -bool charremove(char* mp, char remove) +std::string InspIRCd::GenRandomStr(int length, bool printable) { - char* mptr = mp; - bool shift_down = false; - - while (*mptr) - { - if (*mptr == remove) - shift_down = true; - - if (shift_down) - *mptr = *(mptr+1); - - mptr++; - } - - return shift_down; + char* buf = new char[length]; + GenRandom(buf, length); + std::string rv; + rv.resize(length); + for(int i=0; i < length; i++) + rv[i] = printable ? 0x3F + (buf[i] & 0x3F) : buf[i]; + delete[] buf; + return rv; } -void OpenLog(char** argv, int argc) +// NOTE: this has a slight bias for lower values if max is not a power of 2. +// Don't use it if that matters. +unsigned long InspIRCd::GenRandomInt(unsigned long max) { - if (!*LOG_FILE) - { - if (ServerInstance->Config->logpath == "") - { - ServerInstance->Config->logpath = GetFullProgDir(argv,argc) + "/ircd.log"; - } - } - else - { - ServerInstance->Config->log_file = fopen(LOG_FILE,"a+"); - - if (!ServerInstance->Config->log_file) - { - printf("ERROR: Could not write to logfile %s, bailing!\n\n",ServerInstance->Config->logpath.c_str()); - Exit(ERROR); - } - - return; - } - - ServerInstance->Config->log_file = fopen(ServerInstance->Config->logpath.c_str(),"a+"); - - if (!ServerInstance->Config->log_file) - { - printf("ERROR: Could not write to logfile %s, bailing!\n\n",ServerInstance->Config->logpath.c_str()); - Exit(ERROR); - } + unsigned long rv; + GenRandom((char*)&rv, sizeof(rv)); + return rv % max; } -void CheckRoot() +// This is overridden by a higher-quality algorithm when SSL support is loaded +void GenRandomHandler::Call(char *output, size_t max) { - if (geteuid() == 0) + for(unsigned int i=0; i < max; i++) +#ifdef _WIN32 { - 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); + unsigned int uTemp; + if(rand_s(&uTemp) != 0) + output[i] = rand(); + else + output[i] = uTemp; } +#else + output[i] = random(); +#endif } -void CheckDie() +ModResult OnCheckExemptionHandler::Call(User* user, Channel* chan, const std::string& restriction) { - if (*ServerInstance->Config->DieValue) - { - printf("WARNING: %s\n\n",ServerInstance->Config->DieValue); - log(DEFAULT,"Uh-Oh, somebody didn't read their config file: '%s'",ServerInstance->Config->DieValue); - Exit(ERROR); - } -} + unsigned int mypfx = chan->GetPrefixValue(user); + char minmode = 0; + std::string current; -/* We must load the modules AFTER initializing the socket engine, now */ -void LoadAllModules(InspIRCd* ServerInstance) -{ - char configToken[MAXBUF]; - ServerInstance->Config->module_names.clear(); - MODCOUNT = -1; + irc::spacesepstream defaultstream(ServerInstance->Config->ConfValue("options")->getString("exemptchanops")); - for (int count = 0; count < ServerInstance->Config->ConfValueEnum(ServerInstance->Config->config_data, "module"); count++) + while (defaultstream.GetToken(current)) { - ServerInstance->Config->ConfValue(ServerInstance->Config->config_data, "module","name",count,configToken,MAXBUF); - printf("[\033[1;32m*\033[0m] Loading module:\t\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\n",ServerInstance->ModuleError()); - Exit(0); - } + std::string::size_type pos = current.find(':'); + if (pos == std::string::npos) + continue; + if (current.substr(0,pos) == restriction) + minmode = current[pos+1]; } - - log(DEFAULT,"Total loaded modules: %lu",(unsigned long)MODCOUNT+1); + + PrefixMode* mh = ServerInstance->Modes->FindPrefixMode(minmode); + if (mh && mypfx >= mh->GetPrefixRank()) + return MOD_RES_ALLOW; + if (mh || minmode == '*') + return MOD_RES_DENY; + return MOD_RES_PASSTHRU; }