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anope/include/anope.h
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493 lines
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C++

/*
* (C) 2003-2010 Anope Team
* Contact us at team@anope.org
*
* Please read COPYING and README for furhter details.
*
* Based on the original code of Epona by Lara.
* Based on the original code of Services by Andy Church.
*/
#ifndef ANOPE_H
#define ANOPE_H
#include <string>
#include <vector>
#include <set>
#include "hashcomp.h"
struct Message;
namespace Anope
{
/**
* A wrapper string class around all the other string classes, this class will
* allow us to only require one type of string everywhere that can be converted
* at any time to a specific type of string.
*/
class string
{
private:
/**
* The actual string is stored in an std::string as it can be converted to
* ci::string, irc::string, or a C-style string at any time.
*/
std::string _string;
public:
/**
* Extras.
*/
typedef std::string::iterator iterator;
typedef std::string::const_iterator const_iterator;
typedef std::string::reverse_iterator reverse_iterator;
typedef std::string::const_reverse_iterator const_reverse_iterator;
typedef std::string::size_type size_type;
static const size_type npos = static_cast<size_type>(-1);
/**
* Constructors that can take in any type of string.
*/
string() : _string("") { }
string(char chr) : _string() { _string = chr; }
string(size_type n, char chr) : _string(n, chr) { }
string(const char *_str) : _string(_str) { }
string(const std::string &_str) : _string(_str) { }
string(const ci::string &_str) : _string(_str.c_str()) { }
string(const irc::string &_str) : _string(_str.c_str()) { }
string(const string &_str, size_type pos = 0, size_type n = npos) : _string(_str._string, pos, n) { }
template <class InputIterator> string(InputIterator first, InputIterator last) : _string(first, last) { }
/**
* Assignment operators, so any type of string can be assigned to this class.
*/
inline string &operator=(char chr) { this->_string = chr; return *this; }
inline string &operator=(const char *_str) { this->_string = _str; return *this; }
inline string &operator=(const std::string &_str) { this->_string = _str; return *this; }
inline string &operator=(const ci::string &_str) { this->_string = _str.c_str(); return *this; }
inline string &operator=(const irc::string &_str) { this->_string = _str.c_str(); return *this; }
inline string &operator=(const string &_str) { if (this != &_str) this->_string = _str._string; return *this; }
/**
* Equality operators, to compare to any type of string.
*/
inline bool operator==(const char *_str) const { return this->_string == _str; }
inline bool operator==(const std::string &_str) const { return this->_string == _str; }
inline bool operator==(const ci::string &_str) const { return ci::string(this->_string.c_str()) == _str; }
inline bool operator==(const irc::string &_str) const { return irc::string(this->_string.c_str()) == _str; }
inline bool operator==(const string &_str) const { return this->_string == _str._string; }
inline bool equals_cs(const char *_str) const { return this->_string == _str; }
inline bool equals_cs(const std::string &_str) const { return this->_string == _str; }
inline bool equals_cs(const ci::string &_str) const { return this->_string == _str.c_str(); }
inline bool equals_cs(const irc::string &_str) const { return this->_string == _str.c_str(); }
inline bool equals_cs(const string &_str) const { return this->_string == _str._string; }
inline bool equals_ci(const char *_str) const { return ci::string(this->_string.c_str()) == _str; }
inline bool equals_ci(const std::string &_str) const { return ci::string(this->_string.c_str()) == _str.c_str(); }
inline bool equals_ci(const ci::string &_str) const { return _str == this->_string.c_str(); }
inline bool equals_ci(const irc::string &_str) const { return ci::string(this->_string.c_str()) == _str.c_str(); }
inline bool equals_ci(const string &_str) const { return ci::string(this->_string.c_str()) == _str._string.c_str(); }
inline bool equals_irc(const char *_str) const { return irc::string(this->_string.c_str()) == _str; }
inline bool equals_irc(const std::string &_str) const { return irc::string(this->_string.c_str()) == _str.c_str(); }
inline bool equals_irc(const ci::string &_str) const { return irc::string(this->_string.c_str()) == _str.c_str(); }
inline bool equals_irc(const irc::string &_str) const { return _str == this->_string.c_str(); }
inline bool equals_irc(const string &_str) const { return irc::string(this->_string.c_str()) == _str._string.c_str(); }
/**
* Inequality operators, exact opposites of the above.
*/
inline bool operator!=(const char *_str) const { return !operator==(_str); }
inline bool operator!=(const std::string &_str) const { return !operator==(_str); }
inline bool operator!=(const ci::string &_str) const { return !operator==(_str); }
inline bool operator!=(const irc::string &_str) const { return !operator==(_str); }
inline bool operator!=(const string &_str) const { return !operator==(_str); }
/**
* Compound addition operators, overloaded to do concatenation.
*/
inline string &operator+=(char chr) { this->_string += chr; return *this; }
inline string &operator+=(const char *_str) { this->_string += _str; return *this; }
inline string &operator+=(const std::string &_str) { this->_string += _str; return *this; }
inline string &operator+=(const ci::string &_str) { this->_string += _str.c_str(); return *this; }
inline string &operator+=(const irc::string &_str) { this->_string += _str.c_str(); return *this; }
inline string &operator+=(const string &_str) { if (this != &_str) this->_string += _str._string; return *this; }
/**
* Addition operators, overloaded to do concatenation.
*/
inline const string operator+(char chr) const { return string(*this) += chr; }
inline const string operator+(const char *_str) const { return string(*this) += _str; }
inline const string operator+(const std::string &_str) const { return string(*this) += _str; }
inline const string operator+(const ci::string &_str) const { return string(*this) += _str; }
inline const string operator+(const irc::string &_str) const { return string(*this) += _str; }
inline const string operator+(const string &_str) const { return string(*this) += _str; }
friend const string operator+(char chr, const string &str);
friend const string operator+(const char *_str, const string &str);
friend const string operator+(const std::string &_str, const string &str);
friend const string operator+(const ci::string &_str, const string &str);
friend const string operator+(const irc::string &_str, const string &str);
/**
* Less-than operator.
*/
inline bool operator<(const string &_str) const { return this->_string < _str._string; }
/**
* The following functions return the various types of strings.
*/
inline const char *c_str() const { return this->_string.c_str(); }
inline std::string &str() { return this->_string; }
inline const std::string &str() const { return this->_string; }
inline ci::string ci_str() const { return ci::string(this->_string.c_str()); }
inline irc::string irc_str() const { return irc::string(this->_string.c_str()); }
/**
* Returns if the string is empty or not.
*/
inline bool empty() const { return this->_string.empty(); }
/**
* Returns the string's length.
*/
inline size_type length() const { return this->_string.length(); }
/**
* Resizes the string content to n characters.
*/
inline void resize(size_type n) { return this->_string.resize(n); }
/**
* Erases characters from the string.
*/
inline iterator erase(const iterator &i) { return this->_string.erase(i); }
inline iterator erase(const iterator &first, const iterator &last) { return this->_string.erase(first, last); }
inline void erase(size_type pos = 0, size_type n = std::string::npos) { this->_string.erase(pos, n); }
/**
* Clears the string.
*/
inline void clear() { this->_string.clear(); }
/**
* Find substrings of the string.
*/
inline size_type find(const string &_str, size_type pos = 0) const { return this->_string.find(_str._string, pos); }
inline size_type find(char chr, size_type pos = 0) const { return this->_string.find(chr, pos); }
inline size_type find_ci(const string &_str, size_type pos = 0) const { return ci::string(this->_string.c_str()).find(ci::string(_str._string.c_str()), pos); }
inline size_type find_ci(char chr, size_type pos = 0) const { return ci::string(this->_string.c_str()).find(chr, pos); }
inline size_type rfind(const string &_str, size_type pos = npos) const { return this->_string.rfind(_str._string, pos); }
inline size_type rfind(char chr, size_type pos = npos) const { return this->_string.rfind(chr, pos); }
inline size_type rfind_ci(const string &_str, size_type pos = npos) const { return ci::string(this->_string.c_str()).rfind(ci::string(_str._string.c_str()), pos); }
inline size_type rfind_ci(char chr, size_type pos = npos) const { return ci::string(this->_string.c_str()).rfind(chr, pos); }
inline size_type find_first_of(const string &_str, size_type pos = 0) const { return this->_string.find_first_of(_str._string, pos); }
inline size_type find_first_of_ci(const string &_str, size_type pos = 0) const { return ci::string(this->_string.c_str()).find_first_of(ci::string(_str._string.c_str()), pos); }
inline size_type find_first_not_of(const string &_str, size_type pos = 0) const { return this->_string.find_first_not_of(_str._string, pos); }
inline size_type find_first_not_of_ci(const string &_str, size_type pos = 0) const { return ci::string(this->_string.c_str()).find_first_not_of(ci::string(_str._string.c_str()), pos); }
inline size_type find_last_of(const string &_str, size_type pos = npos) const { return this->_string.find_last_of(_str._string, pos); }
inline size_type find_last_of_ci(const string &_str, size_type pos = npos) const { return ci::string(this->_string.c_str()).find_last_of(ci::string(_str._string.c_str()), pos); }
inline size_type find_last_not_of(const string &_str, size_type pos = npos) const { return this->_string.find_last_not_of(_str._string, pos); }
inline size_type find_last_not_of_ci(const string &_str, size_type pos = npos) const { return ci::string(this->_string.c_str()).find_last_not_of(ci::string(_str._string.c_str()), pos); }
/**
* Determine if string consists of only numbers.
*/
inline bool is_number_only() const { return this->find_first_not_of("0123456789.-") == npos; }
inline bool is_pos_number_only() const { return this->find_first_not_of("0123456789.") == npos; }
/**
* Replace parts of the string.
*/
inline string replace(size_type pos, size_type n, const string &_str) { return string(this->_string.replace(pos, n, _str._string)); }
inline string replace(size_type pos, size_type n, const string &_str, size_type pos1, size_type n1) { return string(this->_string.replace(pos, n, _str._string, pos1, n1)); }
inline string replace(size_type pos, size_type n, size_type n1, char chr) { return string(this->_string.replace(pos, n, n1, chr)); }
inline string replace(iterator first, iterator last, const string &_str) { return string(this->_string.replace(first, last, _str._string)); }
inline string replace(iterator first, iterator last, size_type n, char chr) { return string(this->_string.replace(first, last, n, chr)); }
template <class InputIterator> inline string replace(iterator first, iterator last, InputIterator f, InputIterator l) { return string(this->_string.replace(first, last, f, l)); }
inline string replace_all_cs(const string &_orig, const string &_repl)
{
Anope::string new_string = *this;
size_type pos = new_string.find(_orig), orig_length = _orig.length(), repl_length = _repl.length();
while (pos != npos)
{
new_string = new_string.substr(0, pos) + _repl + new_string.substr(pos + orig_length);
pos = new_string.find(_orig, pos + repl_length);
}
return new_string;
}
inline string replace_all_ci(const string &_orig, const string &_repl)
{
Anope::string new_string = *this;
size_type pos = new_string.find_ci(_orig), orig_length = _orig.length(), repl_length = _repl.length();
while (pos != npos)
{
new_string = new_string.substr(0, pos) + _repl + new_string.substr(pos + orig_length);
pos = new_string.find_ci(_orig, pos + repl_length);
}
return new_string;
}
/**
* Get a substring of the string.
*/
inline string substr(size_type pos = 0, size_type n = npos) const { return string(this->_string.substr(pos, n)); }
/**
* Iterators to the string.
*/
inline iterator begin() { return this->_string.begin(); }
inline const_iterator begin() const { return this->_string.begin(); }
inline iterator end() { return this->_string.end(); }
inline const_iterator end() const { return this->_string.end(); }
inline reverse_iterator rbegin() { return this->_string.rbegin(); }
inline const_reverse_iterator rbegin() const { return this->_string.rbegin(); }
inline reverse_iterator rend() { return this->_string.rend(); }
inline const_reverse_iterator rend() const { return this->_string.rend(); }
/**
* Subscript operator, to access individual characters of the string.
*/
inline char &operator[](size_type n) { return this->_string[n]; }
inline const char &operator[](size_type n) const { return this->_string[n]; }
/**
* Stream insertion operator, must be friend because they cannot be inside the class.
*/
friend std::ostream &operator<<(std::ostream &os, const string &_str);
};
/** Hash an Anope::string for unorderd_map, passed as the third template arg to unordered_map
*/
struct hash
{
/* VS 2008 specific code */
enum { bucket_size = 4, min_buckets = 8 };
bool operator()(const string &s1, const string &s2) const;
/* End of 2008 specific code */
/** Hash an Anope::string for unordered_map
* @param s The string
* @return A hash value for the string
*/
bool operator()(const string &s) const;
};
inline std::ostream &operator<<(std::ostream &os, const string &_str) { return os << _str._string; }
inline const string operator+(char chr, const string &str) { string tmp(chr); tmp += str; return tmp; }
inline const string operator+(const char *_str, const string &str) { string tmp(_str); tmp += str; return tmp; }
inline const string operator+(const std::string &_str, const string &str) { string tmp(_str); tmp += str; return tmp; }
inline const string operator+(const ci::string &_str, const string &str) { string tmp(_str); tmp += str; return tmp; }
inline const string operator+(const irc::string &_str, const string &str) { string tmp(_str); tmp += str; return tmp; }
static const char *const compiled = __TIME__ " " __DATE__;
/** The current system time, which is pretty close to being accurate.
* Use this unless you need very specific time checks
*/
extern time_t CurTime;
extern CoreExport string Version();
extern CoreExport string Build();
/** Check whether two strings match.
* @param str The string to check against the pattern (e.g. foobar)
* @param mask The pattern to check (e.g. foo*bar)
* @param case_sensitive Whether or not the match is case sensitive, default false.
*/
extern CoreExport bool Match(const Anope::string &str, const Anope::string &mask, bool case_sensitive = false);
/** Add a message to Anope
* @param name The message name as sent by the IRCd
* @param func A callback function that will be called when this message is received
* @return The new message object
*/
extern CoreExport Message *AddMessage(const string &name, int (*func)(const string &source, int ac, const char **av));
/** Deletes a message from Anope
* XXX Im not sure what will happen if this function is called indirectly from message function pointed to by this message.. must check
* @param m The message
* @return true if the message was found and deleted, else false
*/
extern CoreExport bool DelMessage(Message *m);
/** Returns a list of pointers to message handlers
* @param The message name as sent by the IRCd
* @return a vector with pointers to the messagehandlers (you can bind more than one handler to a message)
*/
extern CoreExport std::vector<Message *> FindMessage(const string &name);
/** Converts a string to hex
* @param the data to be converted
* @return a anope::string containing the hex value
*/
extern CoreExport string Hex(const string &data);
extern CoreExport string Hex(const char *data, unsigned len);
/** Converts a string from hex
* @param src The data to be converted
* @param dest The destination string
*/
extern CoreExport void Unhex(const Anope::string &src, Anope::string &dest);
extern CoreExport void Unhex(const Anope::string &src, char *dest);
/** Return the last error, uses errno/GetLastError() to determin this
* @return An error message
*/
extern CoreExport const Anope::string LastError();
}
/** sepstream allows for splitting token seperated lists.
* Each successive call to sepstream::GetToken() returns
* the next token, until none remain, at which point the method returns
* an empty string.
*/
class CoreExport sepstream
{
private:
/** Original string.
*/
Anope::string tokens;
/** Last position of a seperator token
*/
Anope::string::iterator last_starting_position;
/** Current string position
*/
Anope::string::iterator n;
/** Seperator value
*/
char sep;
public:
/** Create a sepstream and fill it with the provided data
*/
sepstream(const Anope::string &source, char seperator);
virtual ~sepstream() { }
/** 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
*/
virtual bool GetToken(Anope::string &token);
/** Fetch the entire remaining stream, without tokenizing
* @return The remaining part of the stream
*/
virtual const Anope::string GetRemaining();
/** Returns true if the end of the stream has been reached
* @return True if the end of the stream has been reached, otherwise false
*/
virtual bool StreamEnd();
};
/** A derived form of sepstream, which seperates on commas
*/
class commasepstream : public sepstream
{
public:
/** Initialize with comma seperator
*/
commasepstream(const Anope::string &source) : sepstream(source, ',') { }
};
/** A derived form of sepstream, which seperates on spaces
*/
class spacesepstream : public sepstream
{
public:
/** Initialize with space seperator
*/
spacesepstream(const Anope::string &source) : sepstream(source, ' ') { }
};
/** The base class that most classes in Anope inherit from
*/
class dynamic_reference_base;
class CoreExport Base
{
/* References to this base class */
std::set<dynamic_reference_base *> References;
public:
Base();
virtual ~Base();
void AddReference(dynamic_reference_base *r);
void DelReference(dynamic_reference_base *r);
};
class dynamic_reference_base : public virtual Base
{
protected:
bool invalid;
public:
dynamic_reference_base() : invalid(false) { }
virtual ~dynamic_reference_base() { }
inline void Invalidate() { this->invalid = true; }
};
template<typename T>
class dynamic_reference : public dynamic_reference_base
{
protected:
T *ref;
public:
dynamic_reference(T *obj) : ref(obj)
{
if (ref)
ref->AddReference(this);
}
virtual ~dynamic_reference()
{
if (this->invalid)
{
this->invalid = false;
this->ref = NULL;
}
else if (ref)
ref->DelReference(this);
}
virtual operator bool()
{
if (this->invalid)
{
this->invalid = false;
this->ref = NULL;
}
return this->ref;
}
virtual inline void operator=(T *newref)
{
if (this->invalid)
{
this->invalid = false;
this->ref = NULL;
}
else if (this->ref)
this->ref->DelReference(this);
this->ref = newref;
if (this->ref)
this->ref->AddReference(this);
}
virtual inline T *operator->()
{
return this->ref;
}
virtual inline T *operator*()
{
return this->ref;
}
};
#endif // ANOPE_H