-/* +------------------------------------+
- * | Inspire Internet Relay Chat Daemon |
- * +------------------------------------+
+/*
+ * InspIRCd -- Internet Relay Chat Daemon
*
- * InspIRCd is copyright (C) 2002-2006 ChatSpike-Dev.
- * E-mail:
- * <brain@chatspike.net>
- * <Craig@chatspike.net>
+ * Copyright (C) 2019 linuxdaemon <linuxdaemon.irc@gmail.com>
+ * Copyright (C) 2013, 2018-2019 Sadie Powell <sadie@witchery.services>
+ * Copyright (C) 2013 Adam <Adam@anope.org>
+ * Copyright (C) 2012-2013, 2016 Attila Molnar <attilamolnar@hush.com>
+ * Copyright (C) 2012 Robby <robby@chatbelgie.be>
+ * Copyright (C) 2009 Uli Schlachter <psychon@inspircd.org>
+ * Copyright (C) 2009 Daniel De Graaf <danieldg@inspircd.org>
+ * Copyright (C) 2008-2009 Robin Burchell <robin+git@viroteck.net>
+ * Copyright (C) 2008 Pippijn van Steenhoven <pip88nl@gmail.com>
+ * Copyright (C) 2007 Dennis Friis <peavey@inspircd.org>
+ * Copyright (C) 2005-2010 Craig Edwards <brain@inspircd.org>
*
- * Written by Craig Edwards, Craig McLure, and others.
- * 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 <http://www.gnu.org/licenses/>.
*/
-#ifndef _HASHCOMP_H_
-#define _HASHCOMP_H_
-#include "inspircd_config.h"
+#pragma once
+
+#include "inspircd.h"
+#include "convto.h"
/*******************************************************
* This file contains classes and templates that deal
* treat [ identical to {, ] identical to }, and \
* as identical to |.
*
- * Our hashing functions are designed to accept
- * std::string and compare/hash them as type irc::string
- * by converting them internally. This makes them
- * backwards compatible with other code which is not
- * aware of irc::string.
+ * There are functors that accept std::string and
+ * compare/hash them as type irc::string by using
+ * mapping arrays internally.
*******************************************************/
-#ifdef GCC3
-#include <ext/hash_map>
-#else
-#include <hash_map>
-#endif
-
-#ifdef GCC3
-#define nspace __gnu_cxx
-#else
-#define nspace std
-#endif
+/** Separate from the other casemap tables so that code *can* still exclusively rely on RFC casemapping
+ * if it must.
+ *
+ * This is provided as a pointer so that modules can change it to their custom mapping tables,
+ * e.g. for national character support.
+ */
+CoreExport extern unsigned const char *national_case_insensitive_map;
-using namespace std;
+/** A mapping of uppercase to lowercase, including scandinavian
+ * 'oddities' as specified by RFC1459, e.g. { -> [, and | -> \
+ */
+CoreExport extern unsigned const char rfc_case_insensitive_map[256];
-namespace nspace
-{
-#ifdef GCC34
- template<> struct hash<in_addr>
-#else
- template<> struct nspace::hash<in_addr>
-#endif
- {
- size_t operator()(const struct in_addr &a) const;
- };
-#ifdef GCC34
- template<> struct hash<string>
-#else
- template<> struct nspace::hash<string>
-#endif
- {
- size_t operator()(const string &s) const;
- };
-}
+/** Case insensitive map, ASCII rules.
+ * That is;
+ * [ != {, but A == a.
+ */
+CoreExport extern unsigned const char ascii_case_insensitive_map[256];
/** The irc namespace contains a number of helper classes.
*/
namespace irc
{
+ /** Check if two IRC object (e.g. nick or channel) names are equal.
+ * This function uses national_case_insensitive_map to determine equality, which, by default does comparison
+ * according to RFC 1459, treating certain otherwise non-identical characters as identical.
+ * @param s1 First string to compare
+ * @param s2 Second string to compare
+ * @return True if the two names are equal, false otherwise
+ */
+ CoreExport bool equals(const std::string& s1, const std::string& s2);
+
+ /** Check whether \p needle exists within \p haystack.
+ * @param haystack The string to search within.
+ * @param needle The string to search for.
+ * @return Either the index at which \p needle was found or std::string::npos.
+ */
+ CoreExport size_t find(const std::string& haystack, const std::string& needle);
/** This class returns true if two strings match.
* Case sensitivity is ignored, and the RFC 'character set'
{
/** The operator () does the actual comparison in hash_map
*/
- bool operator()(const std::string& s1, const std::string& s2) const;
+ bool operator()(const std::string& s1, const std::string& s2) const
+ {
+ return equals(s1, s2);
+ }
+ };
+
+ struct insensitive
+ {
+ size_t CoreExport operator()(const std::string &s) const;
};
+ struct insensitive_swo
+ {
+ bool CoreExport operator()(const std::string& a, const std::string& b) const;
+ };
- /** This class returns true if two in_addr structs match.
- * Checking is done by copying both into a size_t then doing a
- * numeric comparison of the two.
+ /** irc::sepstream allows for splitting token separated lists.
+ * Each successive call to sepstream::GetToken() returns
+ * the next token, until none remain, at which point the method returns
+ * false.
*/
- struct InAddr_HashComp
+ class CoreExport sepstream
{
- /** The operator () does the actual comparison in hash_map
+ protected:
+ /** Original string.
*/
- bool operator()(const in_addr &s1, const in_addr &s2) const;
- };
+ std::string tokens;
+ /** Separator value
+ */
+ char sep;
+ /** Current string position
+ */
+ size_t pos;
+ /** If set then GetToken() can return an empty string
+ */
+ bool allow_empty;
+ public:
+ /** Create a sepstream and fill it with the provided data
+ */
+ sepstream(const std::string &source, char separator, bool allowempty = false);
+ /** Fetch the next token from the stream
+ * @param token The next token from the stream is placed here
+ * @return True if tokens still remain, false if there are none left
+ */
+ bool GetToken(std::string& token);
- /** The irc_char_traits class is used for RFC-style comparison of strings.
- * This class is used to implement irc::string, a case-insensitive, RFC-
- * comparing string class.
- */
- struct irc_char_traits : std::char_traits<char> {
+ /** Fetch the next numeric token from the stream
+ * @param token The next token from the stream is placed here
+ * @return True if tokens still remain, false if there are none left
+ */
+ template<typename Numeric>
+ bool GetNumericToken(Numeric& token)
+ {
+ std::string str;
+ if (!GetToken(str))
+ return false;
+
+ token = ConvToNum<Numeric>(str);
+ return true;
+ }
+
+ /** Fetch the entire remaining stream, without tokenizing
+ * @return The remaining part of the stream
+ */
+ const std::string GetRemaining();
- /** Check if two chars match
+ /** Returns true if the end of the stream has been reached
+ * @return True if the end of the stream has been reached, otherwise false
*/
- static bool eq(char c1st, char c2nd);
+ bool StreamEnd();
- /** Check if two chars do NOT match
+ /** Returns true if the specified value exists in the stream
+ * @param value The value to search for
+ * @return True if the value was found, False otherwise
+ */
+ bool Contains(const std::string& value);
+ };
+
+ /** A derived form of sepstream, which separates on commas
+ */
+ class CoreExport commasepstream : public sepstream
+ {
+ public:
+ /** Initialize with comma separator
*/
- static bool ne(char c1st, char c2nd);
+ commasepstream(const std::string &source, bool allowempty = false) : sepstream(source, ',', allowempty)
+ {
+ }
+ };
- /** Check if one char is less than another
+ /** A derived form of sepstream, which separates on spaces
+ */
+ class CoreExport spacesepstream : public sepstream
+ {
+ public:
+ /** Initialize with space separator
*/
- static bool lt(char c1st, char c2nd);
+ spacesepstream(const std::string &source, bool allowempty = false) : sepstream(source, ' ', allowempty)
+ {
+ }
+ };
+
+ /** irc::tokenstream reads a string formatted as per RFC1459 and RFC2812.
+ * It will split the string into 'tokens' each containing one parameter
+ * from the string.
+ * For instance, if it is instantiated with the string:
+ * "PRIVMSG #test :foo bar baz qux"
+ * then each successive call to tokenstream::GetToken() will return
+ * "PRIVMSG", "#test", "foo bar baz qux", "".
+ * Note that if the whole string starts with a colon this is not taken
+ * to mean the string is all one parameter, and the first item in the
+ * list will be ":item". This is to allow for parsing 'source' fields
+ * from data.
+ */
+ class CoreExport tokenstream
+ {
+ private:
+ /** The message we are parsing tokens from. */
+ std::string message;
+
+ /** The current position within the message. */
+ size_t position;
- /** Compare two strings of size n
+ public:
+ /** Create a tokenstream and fill it with the provided data. */
+ tokenstream(const std::string& msg, size_t start = 0, size_t end = std::string::npos);
+
+ /** Retrieves the underlying message. */
+ std::string& GetMessage() { return message; }
+
+ /** Retrieve the next \<middle> token in the token stream.
+ * @param token The next token available, or an empty string if none remain.
+ * @return True if tokens are left to be read, false if the last token was just retrieved.
*/
- static int compare(const char* str1, const char* str2, size_t n);
+ bool GetMiddle(std::string& token);
- /** Find a char within a string up to position n
- */
- static const char* find(const char* s1, int n, char c);
+ /** Retrieve the next \<trailing> token in the token stream.
+ * @param token The next token available, or an empty string if none remain.
+ * @return True if tokens are left to be read, false if the last token was just retrieved.
+ */
+ bool GetTrailing(std::string& token);
};
- /** This typedef declares irc::string based upon irc_char_traits
+ /** The portparser class separates out a port range into integers.
+ * A port range may be specified in the input string in the form
+ * "6660,6661,6662-6669,7020". The end of the stream is indicated by
+ * a return value of 0 from portparser::GetToken(). If you attempt
+ * to specify an illegal range (e.g. one where start >= end, or
+ * start or end < 0) then GetToken() will return the first element
+ * of the pair of numbers.
*/
- typedef basic_string<char, irc_char_traits, allocator<char> > string;
-}
+ class CoreExport portparser
+ {
+ private:
+
+ /** Used to split on commas
+ */
+ commasepstream sep;
-#endif
+ /** Current position in a range of ports
+ */
+ long in_range;
+
+ /** Starting port in a range of ports
+ */
+ long range_begin;
+
+ /** Ending port in a range of ports
+ */
+ long range_end;
+
+ /** Allow overlapped port ranges
+ */
+ bool overlapped;
+
+ /** Used to determine overlapping of ports
+ * without O(n) algorithm being used
+ */
+ std::set<long> overlap_set;
+
+ /** Returns true if val overlaps an existing range
+ */
+ bool Overlaps(long val);
+ public:
+
+ /** Create a portparser and fill it with the provided data
+ * @param source The source text to parse from
+ * @param allow_overlapped Allow overlapped ranges
+ */
+ portparser(const std::string &source, bool allow_overlapped = true);
+
+ /** Fetch the next token from the stream
+ * @return The next port number is returned, or 0 if none remain
+ */
+ long GetToken();
+ };
+}
projects / user / henk / code / inspircd.git / blobdiff