/*
* InspIRCd -- Internet Relay Chat Daemon
*
+ * Copyright (C) 2019-2020 Matt Schatz <genius3000@g3k.solutions>
+ * Copyright (C) 2018 linuxdaemon <linuxdaemon.irc@gmail.com>
+ * Copyright (C) 2013 Daniel Vassdal <shutter@canternet.org>
+ * Copyright (C) 2013 Adam <Adam@anope.org>
+ * Copyright (C) 2012-2015 Attila Molnar <attilamolnar@hush.com>
+ * Copyright (C) 2012-2014, 2017-2018, 2020 Sadie Powell <sadie@witchery.services>
+ * Copyright (C) 2012, 2018 Robby <robby@chatbelgie.be>
+ * Copyright (C) 2012 ChrisTX <xpipe@hotmail.de>
* Copyright (C) 2009-2010 Daniel De Graaf <danieldg@inspircd.org>
- * Copyright (C) 2006-2008 Robin Burchell <robin+git@viroteck.net>
- * Copyright (C) 2005-2008 Craig Edwards <craigedwards@brainbox.cc>
- * Copyright (C) 2008 Thomas Stagner <aquanight@inspircd.org>
- * Copyright (C) 2006-2007 Oliver Lupton <oliverlupton@gmail.com>
* Copyright (C) 2007 Dennis Friis <peavey@inspircd.org>
+ * Copyright (C) 2006-2008 Robin Burchell <robin+git@viroteck.net>
+ * Copyright (C) 2005, 2007, 2010 Craig Edwards <brain@inspircd.org>
*
* 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
#include "inspircd.h"
#include "xline.h"
-#include "exitcodes.h"
-#include <iostream>
/* Find a user record by nickname and return a pointer to it */
User* InspIRCd::FindNick(const std::string &nick)
if (exclamation != 1 || atsign != 1)
return false;
- if (mask.length() > 250)
+ if (mask.length() > ServerInstance->Config->Limits.GetMaxMask())
return false;
return true;
{
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(const std::string& c, const std::string& r)
+ : character(c)
+ , replace(r)
+ {
+ }
+ } special[] = {
+ special_chars("\\b", "\x02"), // Bold
+ special_chars("\\c", "\x03"), // Color
+ special_chars("\\i", "\x1D"), // Italic
+ special_chars("\\m", "\x11"), // Monospace
+ special_chars("\\r", "\x16"), // Reverse
+ special_chars("\\s", "\x1E"), // Strikethrough
+ special_chars("\\u", "\x1F"), // Underline
+ special_chars("\\x", "\x0F"), // Reset
special_chars("", "")
};
}
/* true for valid channel name, false else */
-bool IsChannelHandler::Call(const std::string& chname)
+bool InspIRCd::DefaultIsChannel(const std::string& chname)
{
if (chname.empty() || chname.length() > ServerInstance->Config->Limits.ChanMax)
return false;
}
/* true for valid nickname, false else */
-bool IsNickHandler::Call(const std::string& n)
+bool InspIRCd::DefaultIsNick(const std::string& n)
{
if (n.empty() || n.length() > ServerInstance->Config->Limits.NickMax)
return false;
}
/* return true for good ident, false else */
-bool IsIdentHandler::Call(const std::string& n)
+bool InspIRCd::DefaultIsIdent(const std::string& n)
{
if (n.empty())
return false;
return true;
}
+bool InspIRCd::IsHost(const std::string& host)
+{
+ // Hostnames must be non-empty and shorter than the maximum hostname length.
+ if (host.empty() || host.length() > ServerInstance->Config->Limits.MaxHost)
+ return false;
+
+ unsigned int numdashes = 0;
+ unsigned int numdots = 0;
+ bool seendot = false;
+ const std::string::const_iterator hostend = host.end() - 1;
+ for (std::string::const_iterator iter = host.begin(); iter != host.end(); ++iter)
+ {
+ unsigned char chr = static_cast<unsigned char>(*iter);
+
+ // If the current character is a label separator.
+ if (chr == '.')
+ {
+ numdots++;
+
+ // Consecutive separators are not allowed and dashes can not exist at the start or end
+ // of labels and separators must only exist between labels.
+ if (seendot || numdashes || iter == host.begin() || iter == hostend)
+ return false;
+
+ seendot = true;
+ continue;
+ }
+
+ // If this point is reached then the character is not a dot.
+ seendot = false;
+
+ // If the current character is a dash.
+ if (chr == '-')
+ {
+ // Consecutive separators are not allowed and dashes can not exist at the start or end
+ // of labels and separators must only exist between labels.
+ if (seendot || numdashes >= 2 || iter == host.begin() || iter == hostend)
+ return false;
+
+ numdashes += 1;
+ continue;
+ }
+
+ // If this point is reached then the character is not a dash.
+ numdashes = 0;
+
+ // Alphanumeric characters are allowed at any position.
+ if ((chr >= '0' && chr <= '9') || (chr >= 'A' && chr <= 'Z') || (chr >= 'a' && chr <= 'z'))
+ continue;
+
+ return false;
+ }
+
+ // Whilst simple hostnames (e.g. localhost) are valid we do not allow the server to use
+ // them to prevent issues with clients that differentiate between short client and server
+ // prefixes by checking whether the nickname contains a dot.
+ return numdots;
+}
+
bool InspIRCd::IsSID(const std::string &str)
{
/* Returns true if the string given is exactly 3 characters long,
*/
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 InspIRCd::CheckRoot()
-{
-#ifndef _WIN32
- if (geteuid() == 0)
- {
- 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);
- }
-#endif
+ ((str[2] >= 'A' && str[2] <= 'Z') || isdigit(str[2])));
}
-/** Refactored by Brain, Jun 2009. Much faster with some clever O(1) array
- * lookups and pointer maths.
+/** A lookup table of values for multiplier characters used by
+ * InspIRCd::Duration(). In this lookup table, the indexes for
+ * the ascii values 'm' and 'M' have the value '60', the indexes
+ * for the ascii values 'D' and 'd' have a value of '86400', etc.
*/
-unsigned long InspIRCd::Duration(const std::string &str)
+static const unsigned int duration_multi[] =
+{
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 86400, 0, 0, 0, 3600, 0, 0, 0, 0, 60, 0, 0,
+ 0, 0, 0, 1, 0, 0, 0, 604800, 0, 31557600, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 86400, 0, 0, 0, 3600, 0, 0, 0, 0, 60, 0, 0,
+ 0, 0, 0, 1, 0, 0, 0, 604800, 0, 31557600, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+};
+
+bool InspIRCd::Duration(const std::string& str, unsigned long& duration)
{
- unsigned char multiplier = 0;
- long total = 0;
- long times = 1;
- long subtotal = 0;
+ unsigned long total = 0;
+ unsigned long subtotal = 0;
/* Iterate each item in the string, looking for number or multiplier */
- for (std::string::const_reverse_iterator i = str.rbegin(); i != str.rend(); ++i)
+ for (std::string::const_iterator i = str.begin(); i != str.end(); ++i)
{
/* Found a number, queue it onto the current number */
if ((*i >= '0') && (*i <= '9'))
{
- subtotal = subtotal + ((*i - '0') * times);
- times = times * 10;
+ subtotal = (subtotal * 10) + (*i - '0');
}
else
{
- /* Found something thats not a number, find out how much
+ /* Found something that's 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];
+ unsigned int multiplier = duration_multi[static_cast<unsigned char>(*i)];
+ if (multiplier == 0)
+ return false;
+
+ total += subtotal * multiplier;
/* Next subtotal please */
subtotal = 0;
- multiplier = *i;
- times = 1;
}
}
- if (multiplier)
+ /* Any trailing values built up are treated as raw seconds */
+ duration = total + subtotal;
+ return true;
+}
+
+unsigned long InspIRCd::Duration(const std::string& str)
+{
+ unsigned long out = 0;
+ InspIRCd::Duration(str, out);
+ return out;
+}
+
+bool InspIRCd::IsValidDuration(const std::string& duration)
+{
+ for (std::string::const_iterator i = duration.begin(); i != duration.end(); ++i)
{
- total += subtotal * duration_multi[multiplier];
- subtotal = 0;
+ unsigned char c = *i;
+ if (((c >= '0') && (c <= '9')))
+ continue;
+
+ if (!duration_multi[c])
+ return false;
}
- /* Any trailing values built up are treated as raw seconds */
- return total + subtotal;
+ return true;
}
-const char* InspIRCd::Format(va_list &vaList, const char* formatString)
+std::string InspIRCd::DurationString(time_t duration)
+{
+ if (duration == 0)
+ return "0s";
+
+ time_t years = duration / 31449600;
+ time_t weeks = (duration / 604800) % 52;
+ time_t days = (duration / 86400) % 7;
+ time_t hours = (duration / 3600) % 24;
+ time_t minutes = (duration / 60) % 60;
+ time_t seconds = duration % 60;
+
+ std::string ret;
+
+ if (years)
+ ret = ConvToStr(years) + "y";
+ if (weeks)
+ ret += ConvToStr(weeks) + "w";
+ if (days)
+ ret += ConvToStr(days) + "d";
+ if (hours)
+ ret += ConvToStr(hours) + "h";
+ if (minutes)
+ ret += ConvToStr(minutes) + "m";
+ if (seconds)
+ ret += ConvToStr(seconds) + "s";
+
+ return ret;
+}
+
+std::string InspIRCd::Format(va_list& vaList, const char* formatString)
{
static std::vector<char> formatBuffer(1024);
formatBuffer.resize(formatBuffer.size() * 2);
}
- return &formatBuffer[0];
+ return std::string(&formatBuffer[0]);
}
-const char* InspIRCd::Format(const char* formatString, ...)
+std::string InspIRCd::Format(const char* formatString, ...)
{
- const char* ret;
+ std::string ret;
VAFORMAT(ret, formatString, formatString);
return ret;
}
// This is the default format used by asctime without the terminating new line.
if (!format)
- format = "%a %b %d %H:%M:%S %Y";
+ format = "%a %b %d %Y %H:%M:%S";
char buffer[512];
if (!strftime(buffer, sizeof(buffer), format, timeinfo))
return buffer;
}
-std::string InspIRCd::GenRandomStr(int length, bool printable)
+std::string InspIRCd::GenRandomStr(unsigned 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;
+ std::vector<char> str(length);
+ GenRandom(&str[0], length);
+ if (printable)
+ for (size_t i = 0; i < length; i++)
+ str[i] = 0x3F + (str[i] & 0x3F);
+ return std::string(&str[0], str.size());
}
// NOTE: this has a slight bias for lower values if max is not a power of 2.
return rv % max;
}
-// This is overridden by a higher-quality algorithm when SSL support is loaded
-void GenRandomHandler::Call(char *output, size_t max)
+// This is overridden by a higher-quality algorithm when TLS (SSL) support is loaded
+void InspIRCd::DefaultGenRandom(char* output, size_t max)
{
- for(unsigned int i=0; i < max; i++)
-#ifdef _WIN32
+#if defined HAS_ARC4RANDOM_BUF
+ arc4random_buf(output, max);
+#else
+ for (unsigned int i = 0; i < max; ++i)
+# ifdef _WIN32
{
unsigned int uTemp;
if(rand_s(&uTemp) != 0)
else
output[i] = uTemp;
}
-#else
+# else
output[i] = random();
+# endif
#endif
}
projects / user / henk / code / inspircd.git / blobdiff