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/* +------------------------------------+
* | Inspire Internet Relay Chat Daemon |
* +------------------------------------+
*
* InspIRCd is copyright (C) 2002-2006 ChatSpike-Dev.
* E-mail:
* <brain@chatspike.net>
* <Craig@chatspike.net>
*
* Written by Craig Edwards, Craig McLure, and others.
* This program is free but copyrighted software; see
* the file COPYING for details.
*
* ---------------------------------------------------
*/
#ifndef __MODE_H
#define __MODE_H
// include the common header files
#include <typeinfo>
#include <iostream>
#include <string>
#include <deque>
#include <sstream>
#include <vector>
#include "users.h"
#include "channels.h"
#include "ctables.h"
/**
* This enum contains a set of bitmasks which
* are used to compress the 'standard' usermodes
* +isw into a bitfield for fast checking.
*/
enum UserModeBits {
UM_INVISIBLE = 1,
UM_SERVERNOTICE = 2,
UM_WALLOPS = 4
};
/**
* Holds the values for different type of modes
* that can exist, USER or CHANNEL type.
*/
enum ModeType {
MODETYPE_USER = 0,
MODETYPE_CHANNEL = 1
};
/**
* Holds mode actions - modes can be allowed or denied.
*/
enum ModeAction {
MODEACTION_DENY = 0, /* Drop the mode change, AND a parameter if its a parameterized mode */
MODEACTION_ALLOW = 1 /* Allow the mode */
};
/**
* Used to mask off the mode types in the mode handler
* array. Used in a simple two instruction hashing function
* "(modeletter - 65) OR mask"
*/
enum ModeMasks {
MASK_USER = 128, /* A user mode */
MASK_CHANNEL = 0 /* A channel mode */
};
/** Each mode is implemented by ONE ModeHandler class.
* You must derive ModeHandler and add the child class to
* the list of modes handled by the ircd, using
* ModeParser::AddMode. When the mode you implement is
* set by a user, the virtual function OnModeChange is
* called. If you specify a value greater than 0 for
* parameters_on or parameters_off, then when the mode is
* set or unset respectively, std::string ¶meter will
* contain the parameter given by the user, else it will
* contain an empty string. You may alter this parameter
* string, and if you alter it to an empty string, and your
* mode is expected to have a parameter, then this is
* equivalent to returning MODEACTION_DENY.
*/
class ModeHandler
{
/**
* The mode letter you're implementing.
*/
char mode;
/**
* Number of parameters when being set
*/
int n_params_on;
/**
* Number of parameters when being unset
*/
int n_params_off;
/**
* Mode is a 'list' mode. The behaviour
* of your mode is now set entirely within
* the class as of the 1.1 api, rather than
* inside the mode parser as in the 1.0 api,
* so the only use of this value (along with
* IsListMode()) is for the core to determine
* wether your module can produce 'lists' or not
* (e.g. banlists, etc)
*/
bool list;
/**
* The mode type, either MODETYPE_USER or
* MODETYPE_CHANNEL.
*/
ModeType m_type;
/**
* True if the mode requires oper status
* to set.
*/
bool oper;
public:
ModeHandler(char modeletter, int parameters_on, int parameters_off, bool listmode, ModeType type, bool operonly);
virtual ~ModeHandler();
bool IsListMode();
ModeType GetModeType();
bool NeedsOper();
int GetNumParams(bool adding);
char GetModeChar();
virtual ModeAction OnModeChange(userrec* source, userrec* dest, chanrec* channel, std::string ¶meter, bool adding); /* Can change the mode parameter as its a ref */
virtual void DisplayList(userrec* user, chanrec* channel);
virtual bool CheckTimeStamp(time_t theirs, time_t ours, const std::string &their_param, const std::string &our_param, chanrec* channel);
};
class ModeWatcher
{
char mode;
ModeType m_type;
public:
ModeWatcher(char modeletter, ModeType type);
virtual ~ModeWatcher();
char GetModeChar();
ModeType GetModeType();
virtual bool BeforeMode(userrec* source, userrec* dest, chanrec* channel, std::string ¶meter, bool adding, ModeType type); /* Can change the mode parameter */
virtual void AfterMode(userrec* source, userrec* dest, chanrec* channel, const std::string ¶meter, bool adding, ModeType type);
};
typedef std::vector<ModeWatcher*>::iterator ModeWatchIter;
class ModeParser
{
private:
/**
* Mode handlers for each mode, to access a handler subtract
* 65 from the ascii value of the mode letter.
* The upper bit of the value indicates if its a usermode
* or a channel mode, so we have 256 of them not 64.
*/
ModeHandler* modehandlers[256];
/**
* Mode watcher classes arranged in the same way as the
* mode handlers, except for instead of having 256 of them
* we have 256 lists of them.
*/
std::vector<ModeWatcher*> modewatchers[256];
char* GiveOps(userrec *user,char *dest,chanrec *chan,int status);
char* GiveHops(userrec *user,char *dest,chanrec *chan,int status);
char* GiveVoice(userrec *user,char *dest,chanrec *chan,int status);
char* TakeOps(userrec *user,char *dest,chanrec *chan,int status);
char* TakeHops(userrec *user,char *dest,chanrec *chan,int status);
char* TakeVoice(userrec *user,char *dest,chanrec *chan,int status);
userrec* SanityChecks(userrec *user,char *dest,chanrec *chan,int status);
char* Grant(userrec *d,chanrec *chan,int MASK);
char* Revoke(userrec *d,chanrec *chan,int MASK);
public:
ModeParser();
bool AddMode(ModeHandler* mh, unsigned const char modeletter);
void Process(char **parameters, int pcnt, userrec *user, bool servermode);
static void CleanMask(std::string &mask);
};
class cmd_mode : public command_t
{
public:
cmd_mode () : command_t("MODE",0,1) { }
void Handle(char **parameters, int pcnt, userrec *user);
};
#endif
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