2 * InspIRCd -- Internet Relay Chat Daemon
4 * Copyright (C) 2009-2010 Daniel De Graaf <danieldg@inspircd.org>
5 * Copyright (C) 2006-2008 Robin Burchell <robin+git@viroteck.net>
6 * Copyright (C) 2005-2008 Craig Edwards <craigedwards@brainbox.cc>
7 * Copyright (C) 2008 Thomas Stagner <aquanight@inspircd.org>
8 * Copyright (C) 2006-2007 Oliver Lupton <oliverlupton@gmail.com>
9 * Copyright (C) 2007 Dennis Friis <peavey@inspircd.org>
11 * This file is part of InspIRCd. InspIRCd is free software: you can
12 * redistribute it and/or modify it under the terms of the GNU General Public
13 * License as published by the Free Software Foundation, version 2.
15 * This program is distributed in the hope that it will be useful, but WITHOUT
16 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
17 * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
20 * You should have received a copy of the GNU General Public License
21 * along with this program. If not, see <http://www.gnu.org/licenses/>.
32 #include "exitcodes.h"
35 /* Find a user record by nickname and return a pointer to it */
36 User* InspIRCd::FindNick(const std::string &nick)
38 if (!nick.empty() && isdigit(*nick.begin()))
39 return FindUUID(nick);
41 user_hash::iterator iter = this->Users->clientlist.find(nick);
43 if (iter == this->Users->clientlist.end())
44 /* Couldn't find it */
50 User* InspIRCd::FindNickOnly(const std::string &nick)
52 user_hash::iterator iter = this->Users->clientlist.find(nick);
54 if (iter == this->Users->clientlist.end())
60 User *InspIRCd::FindUUID(const std::string &uid)
62 user_hash::iterator finduuid = this->Users->uuidlist.find(uid);
64 if (finduuid == this->Users->uuidlist.end())
67 return finduuid->second;
69 /* find a channel record by channel name and return a pointer to it */
71 Channel* InspIRCd::FindChan(const std::string &chan)
73 chan_hash::iterator iter = chanlist.find(chan);
75 if (iter == chanlist.end())
76 /* Couldn't find it */
82 /* Send an error notice to all users, registered or not */
83 void InspIRCd::SendError(const std::string &s)
85 for (LocalUserList::const_iterator i = this->Users->local_users.begin(); i != this->Users->local_users.end(); i++)
88 if (u->registered == REG_ALL)
94 /* Unregistered connections receive ERROR, not a NOTICE */
95 u->Write("ERROR :" + s);
100 bool InspIRCd::IsValidMask(const std::string &mask)
102 const char* dest = mask.c_str();
106 for (const char* i = dest; *i; i++)
108 /* out of range character, bad mask */
109 if (*i < 32 || *i > 126)
125 /* valid masks only have 1 ! and @ */
126 if (exclamation != 1 || atsign != 1)
129 if (mask.length() > 250)
135 void InspIRCd::StripColor(std::string &sentence)
137 /* refactor this completely due to SQUIT bug since the old code would strip last char and replace with \0 --peavey */
140 for (std::string::iterator i = sentence.begin(); i != sentence.end();)
144 else if (seq && (( ((*i >= '0') && (*i <= '9')) || (*i == ',') ) ))
147 if ( (seq <= 4) && (*i == ',') )
155 if (seq || ((*i == 2) || (*i == 15) || (*i == 22) || (*i == 21) || (*i == 31)))
156 i = sentence.erase(i);
162 void InspIRCd::ProcessColors(file_cache& input)
165 * Replace all color codes from the special[] array to actual
166 * color code chars using C++ style escape sequences. You
167 * can append other chars to replace if you like -- Justasic
169 static struct special_chars
171 std::string character;
173 special_chars(const std::string &c, const std::string &r) : character(c), replace(r) { }
177 special_chars("\\002", "\002"), // Bold
178 special_chars("\\037", "\037"), // underline
179 special_chars("\\003", "\003"), // Color
180 special_chars("\\017", "\017"), // Stop colors
181 special_chars("\\u", "\037"), // Alias for underline
182 special_chars("\\b", "\002"), // Alias for Bold
183 special_chars("\\x", "\017"), // Alias for stop
184 special_chars("\\c", "\003"), // Alias for color
185 special_chars("", "")
188 for(file_cache::iterator it = input.begin(), it_end = input.end(); it != it_end; it++)
190 std::string ret = *it;
191 for(int i = 0; special[i].character.empty() == false; ++i)
193 std::string::size_type pos = ret.find(special[i].character);
194 if(pos == std::string::npos) // Couldn't find the character, skip this line
197 if((pos > 0) && (ret[pos-1] == '\\') && (ret[pos] == '\\'))
198 continue; // Skip double slashes.
200 // Replace all our characters in the array
201 while(pos != std::string::npos)
203 ret = ret.substr(0, pos) + special[i].replace + ret.substr(pos + special[i].character.size());
204 pos = ret.find(special[i].character, pos + special[i].replace.size());
208 // Replace double slashes with a single slash before we return
209 std::string::size_type pos = ret.find("\\\\");
210 while(pos != std::string::npos)
212 ret = ret.substr(0, pos) + "\\" + ret.substr(pos + 2);
213 pos = ret.find("\\\\", pos + 1);
219 /* true for valid channel name, false else */
220 bool IsChannelHandler::Call(const std::string& chname)
222 if (chname.empty() || chname.length() > ServerInstance->Config->Limits.ChanMax)
225 if (chname[0] != '#')
228 for (std::string::const_iterator i = chname.begin()+1; i != chname.end(); ++i)
242 /* true for valid nickname, false else */
243 bool IsNickHandler::Call(const std::string& n)
245 if (n.empty() || n.length() > ServerInstance->Config->Limits.NickMax)
248 for (std::string::const_iterator i = n.begin(); i != n.end(); ++i)
250 if ((*i >= 'A') && (*i <= '}'))
252 /* "A"-"}" can occur anywhere in a nickname */
256 if ((((*i >= '0') && (*i <= '9')) || (*i == '-')) && (i != n.begin()))
258 /* "0"-"9", "-" can occur anywhere BUT the first char of a nickname */
262 /* invalid character! abort */
269 /* return true for good ident, false else */
270 bool IsIdentHandler::Call(const std::string& n)
275 for (std::string::const_iterator i = n.begin(); i != n.end(); ++i)
277 if ((*i >= 'A') && (*i <= '}'))
282 if (((*i >= '0') && (*i <= '9')) || (*i == '-') || (*i == '.'))
293 bool InspIRCd::IsSID(const std::string &str)
295 /* Returns true if the string given is exactly 3 characters long,
296 * starts with a digit, and the other two characters are A-Z or digits
298 return ((str.length() == 3) && isdigit(str[0]) &&
299 ((str[1] >= 'A' && str[1] <= 'Z') || isdigit(str[1])) &&
300 ((str[2] >= 'A' && str[2] <= 'Z') || isdigit(str[2])));
303 void InspIRCd::CheckRoot()
308 std::cout << "ERROR: You are running an irc server as root! DO NOT DO THIS!" << std::endl << std::endl;
309 this->Logs->Log("STARTUP", LOG_DEFAULT, "Can't start as root");
310 Exit(EXIT_STATUS_ROOT);
315 void InspIRCd::SendWhoisLine(User* user, User* dest, int numeric, const std::string &text)
317 std::string copy_text = text;
319 ModResult MOD_RESULT;
320 FIRST_MOD_RESULT(OnWhoisLine, MOD_RESULT, (user, dest, numeric, copy_text));
322 if (MOD_RESULT != MOD_RES_DENY)
323 user->WriteNumeric(numeric, copy_text);
326 void InspIRCd::SendWhoisLine(User* user, User* dest, int numeric, const char* format, ...)
328 std::string textbuffer;
329 VAFORMAT(textbuffer, format, format)
330 this->SendWhoisLine(user, dest, numeric, textbuffer);
333 /** Refactored by Brain, Jun 2009. Much faster with some clever O(1) array
334 * lookups and pointer maths.
336 unsigned long InspIRCd::Duration(const std::string &str)
338 unsigned char multiplier = 0;
343 /* Iterate each item in the string, looking for number or multiplier */
344 for (std::string::const_reverse_iterator i = str.rbegin(); i != str.rend(); ++i)
346 /* Found a number, queue it onto the current number */
347 if ((*i >= '0') && (*i <= '9'))
349 subtotal = subtotal + ((*i - '0') * times);
354 /* Found something thats not a number, find out how much
355 * it multiplies the built up number by, multiply the total
356 * and reset the built up number.
359 total += subtotal * duration_multi[multiplier];
361 /* Next subtotal please */
369 total += subtotal * duration_multi[multiplier];
372 /* Any trailing values built up are treated as raw seconds */
373 return total + subtotal;
376 const char* InspIRCd::Format(va_list &vaList, const char* formatString)
378 static std::vector<char> formatBuffer(1024);
383 va_copy(dst, vaList);
385 int vsnret = vsnprintf(&formatBuffer[0], formatBuffer.size(), formatString, dst);
388 if (vsnret > 0 && static_cast<unsigned>(vsnret) < formatBuffer.size())
393 formatBuffer.resize(formatBuffer.size() * 2);
396 return &formatBuffer[0];
399 const char* InspIRCd::Format(const char* formatString, ...)
402 VAFORMAT(ret, formatString, formatString);
406 std::string InspIRCd::TimeString(time_t curtime, const char* format)
413 struct tm* timeinfo = localtime(&curtime);
417 timeinfo = localtime(&curtime);
420 // If the calculated year exceeds four digits or is less than the year 1000,
421 // the behavior of asctime() is undefined
422 if (timeinfo->tm_year + 1900 > 9999)
423 timeinfo->tm_year = 9999 - 1900;
424 else if (timeinfo->tm_year + 1900 < 1000)
425 timeinfo->tm_year = 0;
427 // This is the default format used by asctime without the terminating new line.
429 format = "%a %b %d %H:%M:%S %Y";
432 if (!strftime(buffer, sizeof(buffer), format, timeinfo))
438 std::string InspIRCd::GenRandomStr(int length, bool printable)
440 char* buf = new char[length];
441 GenRandom(buf, length);
444 for(int i=0; i < length; i++)
445 rv[i] = printable ? 0x3F + (buf[i] & 0x3F) : buf[i];
450 // NOTE: this has a slight bias for lower values if max is not a power of 2.
451 // Don't use it if that matters.
452 unsigned long InspIRCd::GenRandomInt(unsigned long max)
455 GenRandom((char*)&rv, sizeof(rv));
459 // This is overridden by a higher-quality algorithm when SSL support is loaded
460 void GenRandomHandler::Call(char *output, size_t max)
462 for(unsigned int i=0; i < max; i++)
466 if(rand_s(&uTemp) != 0)
472 output[i] = random();
476 ModResult OnCheckExemptionHandler::Call(User* user, Channel* chan, const std::string& restriction)
478 unsigned int mypfx = chan->GetPrefixValue(user);
482 irc::spacesepstream defaultstream(ServerInstance->Config->ConfValue("options")->getString("exemptchanops"));
484 while (defaultstream.GetToken(current))
486 std::string::size_type pos = current.find(':');
487 if (pos == std::string::npos)
489 if (!current.compare(0, pos, restriction))
490 minmode = current[pos+1];
493 PrefixMode* mh = ServerInstance->Modes->FindPrefixMode(minmode);
494 if (mh && mypfx >= mh->GetPrefixRank())
495 return MOD_RES_ALLOW;
496 if (mh || minmode == '*')
498 return MOD_RES_PASSTHRU;