X-Git-Url: https://git.netwichtig.de/gitweb/?a=blobdiff_plain;f=src%2Fhelperfuncs.cpp;h=1cadc49eba764cc398dc2d44f2b4615aa2b253a6;hb=16398df07d4ce1f1d4a2e43d97bc39043f8d44b5;hp=3f60cac80419acc443aab3e34f4bef9fe4bc03e8;hpb=dd98d56cabcd08a3d5207454e002b187af98d28a;p=user%2Fhenk%2Fcode%2Finspircd.git diff --git a/src/helperfuncs.cpp b/src/helperfuncs.cpp index 3f60cac80..1cadc49eb 100644 --- a/src/helperfuncs.cpp +++ b/src/helperfuncs.cpp @@ -1,87 +1,42 @@ -/* +------------------------------------+ - * | Inspire Internet Relay Chat Daemon | - * +------------------------------------+ +/* + * InspIRCd -- Internet Relay Chat Daemon * - * InspIRCd: (C) 2002-2008 InspIRCd Development Team - * See: http://www.inspircd.org/wiki/index.php/Credits + * 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 * - * This program is free but copyrighted software; see - * the file COPYING for details. + * 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. * - * --------------------------------------------------- + * 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 . */ -/* $Core: libIRCDhelper */ + +#ifdef _WIN32 +#define _CRT_RAND_S +#include +#endif #include "inspircd.h" -#include "wildcard.h" #include "xline.h" #include "exitcodes.h" +#include -static char TIMESTR[26]; -static time_t LAST = 0; - -/** 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, ...) -{ - /* sanity check, just in case */ - if (!this->Config || !this->Logger) - return; - - /* Do this check again here so that we save pointless vsnprintf calls */ - if ((level < Config->LogLevel) && !Config->forcedebug) - return; - - va_list argsPtr; - char textbuffer[65536]; - - va_start(argsPtr, text); - vsnprintf(textbuffer, 65536, text, argsPtr); - va_end(argsPtr); - - this->Log(level, std::string(textbuffer)); -} - -void InspIRCd::Log(int level, const std::string &text) -{ - /* sanity check, just in case */ - if (!this->Config || !this->Logger) - return; - - /* If we were given -debug we output all messages, regardless of configured loglevel */ - if ((level < Config->LogLevel) && !Config->forcedebug) - return; - - if (Time() != LAST) - { - time_t local = Time(); - struct tm *timeinfo = localtime(&local); - - strlcpy(TIMESTR,asctime(timeinfo),26); - TIMESTR[24] = ':'; - LAST = Time(); - } - - if (Config->log_file && Config->writelog) - { - std::string out = std::string(TIMESTR) + " " + text.c_str() + "\n"; - this->Logger->WriteLogLine(out); - } - - if (Config->nofork) - { - printf("%s %s\n", TIMESTR, text.c_str()); - } -} - -std::string InspIRCd::GetServerDescription(const char* servername) +std::string InspIRCd::GetServerDescription(const std::string& servername) { std::string description; - FOREACH_MOD_I(this,I_OnGetServerDescription,OnGetServerDescription(servername,description)); + FOREACH_MOD(OnGetServerDescription, (servername,description)); if (!description.empty()) { @@ -109,19 +64,6 @@ User* InspIRCd::FindNick(const std::string &nick) return iter->second; } -User* InspIRCd::FindNick(const char* nick) -{ - if (isdigit(*nick)) - return FindUUID(nick); - - user_hash::iterator iter = this->Users->clientlist->find(nick); - - if (iter == this->Users->clientlist->end()) - return NULL; - - return iter->second; -} - User* InspIRCd::FindNickOnly(const std::string &nick) { user_hash::iterator iter = this->Users->clientlist->find(nick); @@ -132,22 +74,7 @@ User* InspIRCd::FindNickOnly(const std::string &nick) return iter->second; } -User* InspIRCd::FindNickOnly(const char* nick) -{ - user_hash::iterator iter = this->Users->clientlist->find(nick); - - if (iter == this->Users->clientlist->end()) - return NULL; - - return iter->second; -} - User *InspIRCd::FindUUID(const std::string &uid) -{ - return FindUUID(uid.c_str()); -} - -User *InspIRCd::FindUUID(const char *uid) { user_hash::iterator finduuid = this->Users->uuidlist->find(uid); @@ -156,18 +83,7 @@ User *InspIRCd::FindUUID(const char *uid) return finduuid->second; } - /* find a channel record by channel name and return a pointer to it */ -Channel* InspIRCd::FindChan(const char* chan) -{ - chan_hash::iterator iter = chanlist->find(chan); - - if (iter == chanlist->end()) - /* Couldn't find it */ - return NULL; - - return iter->second; -} Channel* InspIRCd::FindChan(const std::string &chan) { @@ -183,38 +99,28 @@ Channel* InspIRCd::FindChan(const std::string &chan) /* Send an error notice to all users, registered or not */ void InspIRCd::SendError(const std::string &s) { - for (std::vector::const_iterator i = this->Users->local_users.begin(); i != this->Users->local_users.end(); i++) + for (LocalUserList::const_iterator i = this->Users->local_users.begin(); i != this->Users->local_users.end(); i++) { - if ((*i)->registered == REG_ALL) + User* u = *i; + if (u->registered == REG_ALL) { - (*i)->WriteServ("NOTICE %s :%s",(*i)->nick,s.c_str()); - } + u->WriteNotice(s); + } else { /* Unregistered connections receive ERROR, not a NOTICE */ - (*i)->Write("ERROR :" + s); + u->Write("ERROR :" + s); } - /* This might generate a whole load of EAGAIN, but we dont really - * care about this, as if we call SendError something catastrophic - * has occured anyway, and we wont receive the events for these. - */ - (*i)->FlushWriteBuf(); } } -/* return channel count */ -long InspIRCd::ChannelCount() -{ - return chanlist->size(); -} - bool InspIRCd::IsValidMask(const std::string &mask) { - char* dest = (char*)mask.c_str(); + const char* dest = mask.c_str(); int exclamation = 0; int atsign = 0; - for (char* i = dest; *i; i++) + for (const char* i = dest; *i; i++) { /* out of range character, bad mask */ if (*i < 32 || *i > 126) @@ -237,51 +143,126 @@ bool InspIRCd::IsValidMask(const std::string &mask) if (exclamation != 1 || atsign != 1) return false; + if (mask.length() > 250) + return false; + return true; } -/* true for valid channel name, false else */ -bool InspIRCd::IsChannel(const char *chname) +void InspIRCd::StripColor(std::string &sentence) { - char *c; + /* refactor this completely due to SQUIT bug since the old code would strip last char and replace with \0 --peavey */ + int seq = 0; - /* check for no name - don't check for !*chname, as if it is empty, it won't be '#'! */ - if (!chname || *chname != '#') + for (std::string::iterator i = sentence.begin(); i != sentence.end();) { - return false; + 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; + + if (seq || ((*i == 2) || (*i == 15) || (*i == 22) || (*i == 21) || (*i == 31))) + i = sentence.erase(i); + else + ++i; + } +} + +void InspIRCd::ProcessColors(file_cache& input) +{ + /* + * 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 + { + std::string character; + std::string replace; + special_chars(const std::string &c, const std::string &r) : character(c), replace(r) { } + } + + 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("", "") + }; + + for(file_cache::iterator it = input.begin(), it_end = input.end(); it != it_end; it++) + { + std::string ret = *it; + for(int i = 0; special[i].character.empty() == false; ++i) + { + std::string::size_type pos = ret.find(special[i].character); + if(pos == std::string::npos) // Couldn't find the character, skip this line + continue; + + if((pos > 0) && (ret[pos-1] == '\\') && (ret[pos] == '\\')) + continue; // Skip double slashes. + + // Replace all our characters in the array + while(pos != std::string::npos) + { + 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()); + } + } + + // Replace double slashes with a single slash before we return + std::string::size_type pos = ret.find("\\\\"); + while(pos != std::string::npos) + { + ret = ret.substr(0, pos) + "\\" + ret.substr(pos + 2); + pos = ret.find("\\\\", pos + 1); + } + *it = ret; } +} - c = (char *)chname + 1; - while (*c) +/* true for valid channel name, false else */ +bool IsChannelHandler::Call(const std::string& chname) +{ + if (chname.empty() || chname.length() > ServerInstance->Config->Limits.ChanMax) + return false; + + if (chname[0] != '#') + return false; + + for (std::string::const_iterator i = chname.begin()+1; i != chname.end(); ++i) { - switch (*c) + switch (*i) { case ' ': case ',': case 7: return false; } - - c++; - } - - /* too long a name - note funky pointer arithmetic here. */ - if ((c - chname) > CHANMAX) - { - return false; } return true; } /* true for valid nickname, false else */ -bool IsNickHandler::Call(const char* n) +bool IsNickHandler::Call(const std::string& n) { - if (!n || !*n) + if (n.empty() || n.length() > ServerInstance->Config->Limits.NickMax) return false; - - int p = 0; - for (char* i = (char*)n; *i; i++, p++) + + for (std::string::const_iterator i = n.begin(); i != n.end(); ++i) { if ((*i >= 'A') && (*i <= '}')) { @@ -289,7 +270,7 @@ bool IsNickHandler::Call(const char* n) continue; } - if ((((*i >= '0') && (*i <= '9')) || (*i == '-')) && (i > n)) + if ((((*i >= '0') && (*i <= '9')) || (*i == '-')) && (i != n.begin())) { /* "0"-"9", "-" can occur anywhere BUT the first char of a nickname */ continue; @@ -299,17 +280,16 @@ bool IsNickHandler::Call(const char* n) return false; } - /* too long? or not -- pointer arithmetic rocks */ - return (p < NICKMAX - 1); + return true; } /* return true for good ident, false else */ -bool IsIdentHandler::Call(const char* n) +bool IsIdentHandler::Call(const std::string& n) { - if (!n || !*n) + if (n.empty()) return false; - for (char* i = (char*)n; *i; i++) + for (std::string::const_iterator i = n.begin(); i != n.end(); ++i) { if ((*i >= 'A') && (*i <= '}')) { @@ -337,81 +317,40 @@ bool InspIRCd::IsSID(const std::string &str) ((str[2] >= 'A' && str[2] <= 'Z') || isdigit(str[2]))); } -/* open the proper logfile */ -bool InspIRCd::OpenLog(char**, int) -{ - Config->MyDir = Config->GetFullProgDir(); - - if (!*this->LogFileName) - { - if (Config->logpath.empty()) - { - Config->logpath = Config->MyDir + "/ircd.log"; - } - - Config->log_file = fopen(Config->logpath.c_str(),"a+"); - } - else - { - Config->log_file = fopen(this->LogFileName,"a+"); - } - - if (!Config->log_file) - { - this->Logger = NULL; - return false; - } - - this->Logger = new FileLogger(this, Config->log_file); - return true; -} - void InspIRCd::CheckRoot() { +#ifndef _WIN32 if (geteuid() == 0) { - printf("WARNING!!! You are running an irc server as ROOT!!! DO NOT DO THIS!!!\n\n"); - this->Log(DEFAULT,"Cant start as root"); + 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); } -} - -void InspIRCd::CheckDie() -{ - if (*Config->DieValue) - { - printf("WARNING: %s\n\n",Config->DieValue); - this->Log(DEFAULT,"Died because of tag: %s",Config->DieValue); - Exit(EXIT_STATUS_DIETAG); - } +#endif } void InspIRCd::SendWhoisLine(User* user, User* dest, int numeric, const std::string &text) { std::string copy_text = text; - int MOD_RESULT = 0; - FOREACH_RESULT_I(this, I_OnWhoisLine, OnWhoisLine(user, dest, numeric, copy_text)); + ModResult MOD_RESULT; + FIRST_MOD_RESULT(OnWhoisLine, MOD_RESULT, (user, dest, numeric, copy_text)); - if (!MOD_RESULT) + if (MOD_RESULT != MOD_RES_DENY) user->WriteServ("%d %s", numeric, copy_text.c_str()); } void InspIRCd::SendWhoisLine(User* user, User* dest, int numeric, const char* format, ...) { - char textbuffer[MAXBUF]; - va_list argsPtr; - va_start (argsPtr, format); - vsnprintf(textbuffer, MAXBUF, format, argsPtr); - va_end(argsPtr); - - this->SendWhoisLine(user, dest, numeric, std::string(textbuffer)); + std::string textbuffer; + VAFORMAT(textbuffer, format, format) + this->SendWhoisLine(user, dest, numeric, textbuffer); } -/** Refactored by Brain, Jun 2008. Much faster with some clever O(1) array +/** Refactored by Brain, Jun 2009. Much faster with some clever O(1) array * lookups and pointer maths. */ -long InspIRCd::Duration(const std::string &str) +unsigned long InspIRCd::Duration(const std::string &str) { unsigned char multiplier = 0; long total = 0; @@ -451,26 +390,134 @@ long InspIRCd::Duration(const std::string &str) return total + subtotal; } -bool InspIRCd::ULine(const char* server) +const char* InspIRCd::Format(va_list &vaList, const char* formatString) { - if (!server) - return false; - if (!*server) + static std::vector formatBuffer(1024); + + while (true) + { + va_list dst; + va_copy(dst, vaList); + + int vsnret = vsnprintf(&formatBuffer[0], formatBuffer.size(), formatString, dst); + if (vsnret > 0 && static_cast(vsnret) < formatBuffer.size()) + { + return &formatBuffer[0]; + } + + formatBuffer.resize(formatBuffer.size() * 2); + } + + throw CoreException(); +} + +const char* InspIRCd::Format(const char* formatString, ...) +{ + const char* ret; + VAFORMAT(ret, formatString, formatString); + return ret; +} + +bool InspIRCd::ULine(const std::string& sserver) +{ + if (sserver.empty()) return true; - return (Config->ulines.find(server) != Config->ulines.end()); + return (Config->ulines.find(sserver.c_str()) != Config->ulines.end()); } -bool InspIRCd::SilentULine(const char* server) +bool InspIRCd::SilentULine(const std::string& sserver) { - std::map::iterator n = Config->ulines.find(server); + std::map::iterator n = Config->ulines.find(sserver.c_str()); if (n != Config->ulines.end()) return n->second; - else return false; + else + return false; } std::string InspIRCd::TimeString(time_t curtime) { - return std::string(ctime(&curtime),24); +#ifdef _WIN32 + if (curtime < 0) + curtime = 0; +#endif + + struct tm* timeinfo = localtime(&curtime); + if (!timeinfo) + { + curtime = 0; + timeinfo = localtime(&curtime); + } + + // 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 std::string(asctime(timeinfo),24); } +std::string InspIRCd::GenRandomStr(int length, bool printable) +{ + 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; +} + +// 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) +{ + unsigned long rv; + GenRandom((char*)&rv, sizeof(rv)); + return rv % max; +} + +// This is overridden by a higher-quality algorithm when SSL support is loaded +void GenRandomHandler::Call(char *output, size_t max) +{ + for(unsigned int i=0; i < max; i++) +#ifdef _WIN32 + { + unsigned int uTemp; + if(rand_s(&uTemp) != 0) + output[i] = rand(); + else + output[i] = uTemp; + } +#else + output[i] = random(); +#endif +} + +ModResult OnCheckExemptionHandler::Call(User* user, Channel* chan, const std::string& restriction) +{ + unsigned int mypfx = chan->GetPrefixValue(user); + char minmode = 0; + std::string current; + + irc::spacesepstream defaultstream(ServerInstance->Config->ConfValue("options")->getString("exemptchanops")); + + while (defaultstream.GetToken(current)) + { + std::string::size_type pos = current.find(':'); + if (pos == std::string::npos) + continue; + if (current.substr(0,pos) == restriction) + minmode = current[pos+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; +}