/* +------------------------------------+ * | Inspire Internet Relay Chat Daemon | * +------------------------------------+ * * InspIRCd is copyright (C) 2002-2006 ChatSpike-Dev. * E-mail: * * * * Written by Craig Edwards, Craig McLure, and others. * This program is free but copyrighted software; see * the file COPYING for details. * * --------------------------------------------------- */ #ifndef __CHANNELS_H__ #define __CHANNELS_H__ #include "inspircd_config.h" #include "base.h" #include #include #include #include /** RFC1459 channel modes */ enum ChannelModes { CM_TOPICLOCK = 't'-65, CM_NOEXTERNAL = 'n'-65, CM_INVITEONLY = 'i'-65, CM_MODERATED = 'm'-65, CM_SECRET = 's'-65, CM_PRIVATE = 'p'-65, CM_KEY = 'k'-65, CM_LIMIT = 'l'-65 }; class userrec; class chanrec; /** Holds an entry for a ban list, exemption list, or invite list. * This class contains a single element in a channel list, such as a banlist. */ class HostItem : public classbase { public: /** Time the item was added */ time_t set_time; /** Who added the item */ char set_by[NICKMAX]; /** The actual item data */ char data[MAXBUF]; HostItem() { /* stub */ } virtual ~HostItem() { /* stub */ } }; /** A subclass of HostItem designed to hold channel bans (+b) */ class BanItem : public HostItem { }; /** A subclass of HostItem designed to hold channel exempts (+e) */ class ExemptItem : public HostItem { }; /** A subclass of HostItem designed to hold channel invites (+I) */ class InviteItem : public HostItem { }; /** Holds a complete ban list */ typedef std::vector BanList; /** Holds a complete exempt list */ typedef std::vector ExemptList; /** Holds a complete invite list */ typedef std::vector InviteList; /** A list of users on a channel */ typedef std::map CUList; /** Shorthand for CUList::iterator */ typedef CUList::iterator CUListIter; /** Shorthand for CUList::const_iterator */ typedef CUList::const_iterator CUListConstIter; /** A list of custom modes parameters on a channel */ typedef std::map CustomModeList; /** used to hold a channel and a users modes on that channel, e.g. +v, +h, +o */ enum UserChannelModes { UCMODE_OP = 1, UCMODE_VOICE = 2, UCMODE_HOP = 4 }; /** Holds a user's modes on a channel * This class associates a users privilages with a channel by creating a pointer link between * a userrec and chanrec class. The uc_modes member holds a bitmask of which privilages the user * has on the channel, such as op, voice, etc. */ class ucrec : public classbase { public: /** Contains a bitmask of the UCMODE_OP ... UCMODE_FOUNDER values. * If this value is zero, the user has no privilages upon the channel. */ char uc_modes; /** Points to the channel record where the given modes apply. * If the record is not in use, this value will be NULL. */ chanrec *channel; /** Constructor for ucrec */ ucrec() : uc_modes(0), channel(NULL) { /* stub */ } /** Destructor for ucrec */ virtual ~ucrec() { /* stub */ } }; class InspIRCd; /** A stored prefix and its rank */ typedef std::pair prefixtype; /** A list of prefixes set on a user in a channel */ typedef std::vector pfxcontainer; /** A list of users with zero or more prefixes set on them */ typedef std::map > prefixlist; /** Holds all relevent information for a channel. * This class represents a channel, and contains its name, modes, time created, topic, topic set time, * etc, and an instance of the BanList type. */ class chanrec : public Extensible { private: /** Pointer to creator object */ InspIRCd* ServerInstance; /** Connect a chanrec to a userrec */ static chanrec* ForceChan(InspIRCd* Instance, chanrec* Ptr,ucrec *a,userrec* user, int created); prefixlist prefixes; public: /** The channels name. */ char name[CHANMAX]; /** Modes for the channel. * This is not a null terminated string! It is a hash where * each item in it represents if a mode is set. For example * for mode +A, index 0. Use modechar-65 to calculate which * field to check. */ char modes[64]; /** User lists * There are four user lists, one for * all the users, one for the ops, one for * the halfops and another for the voices. */ CUList internal_userlist; /** Opped users */ CUList internal_op_userlist; /** Halfopped users */ CUList internal_halfop_userlist; /** Voiced users */ CUList internal_voice_userlist; /** Parameters for custom modes */ CustomModeList custom_mode_params; /** Channel topic. * If this is an empty string, no channel topic is set. */ char topic[MAXTOPIC]; /** Creation time. */ time_t created; /** Time topic was set. * If no topic was ever set, this will be equal to chanrec::created */ time_t topicset; /** The last user to set the topic. * If this member is an empty string, no topic was ever set. */ char setby[NICKMAX]; /** Contains the channel user limit. * If this value is zero, there is no limit in place. */ short int limit; /** Contains the channel key. * If this value is an empty string, there is no channel key in place. */ char key[32]; /** The list of all bans set on the channel. */ BanList bans; /** Sets or unsets a custom mode in the channels info * @param mode The mode character to set or unset * @param mode_on True if you want to set the mode or false if you want to remove it */ void SetMode(char mode,bool mode_on); /** Sets or unsets the parameters for a custom mode in a channels info * @param mode The mode character to set or unset * @param parameter The parameter string to associate with this mode character * @param mode_on True if you want to set the mode or false if you want to remove it */ void SetModeParam(char mode,const char* parameter,bool mode_on); /** Returns true if a mode is set on a channel * @param mode The mode character you wish to query * @return True if the custom mode is set, false if otherwise */ bool IsModeSet(char mode); /** Returns the parameter for a custom mode on a channel. * @param mode The mode character you wish to query * * For example if "+L #foo" is set, and you pass this method * 'L', it will return '#foo'. If the mode is not set on the * channel, or the mode has no parameters associated with it, * it will return an empty string. * * @return The parameter for this mode is returned, or an empty string */ std::string GetModeParameter(char mode); /** Obtain the channel "user counter" * This returns the channel reference counter, which is initialized * to 0 when the channel is created and incremented/decremented * upon joins, parts quits and kicks. * * @return The number of users on this channel */ long GetUserCounter(); /** Add a user pointer to the internal reference list * @param user The user to add * * The data inserted into the reference list is a table as it is * an arbitary pointer compared to other users by its memory address, * as this is a very fast 32 or 64 bit integer comparison. */ void AddUser(userrec* user); /** Add a user pointer to the internal reference list of opped users * @param user The user to add */ void AddOppedUser(userrec* user); /** Add a user pointer to the internal reference list of halfopped users * @param user The user to add */ void AddHalfoppedUser(userrec* user); /** Add a user pointer to the internal reference list of voiced users * @param user The user to add */ void AddVoicedUser(userrec* user); /** Delete a user pointer to the internal reference list * @param user The user to delete * @return number of users left on the channel after deletion of the user */ unsigned long DelUser(userrec* user); /** Delete a user pointer to the internal reference list of opped users * @param user The user to delete */ void DelOppedUser(userrec* user); /** Delete a user pointer to the internal reference list of halfopped users * @param user The user to delete */ void DelHalfoppedUser(userrec* user); /** Delete a user pointer to the internal reference list of voiced users * @param user The user to delete */ void DelVoicedUser(userrec* user); /** Obtain the internal reference list * The internal reference list contains a list of userrec*. * These are used for rapid comparison to determine * channel membership for PRIVMSG, NOTICE, QUIT, PART etc. * The resulting pointer to the vector should be considered * readonly and only modified via AddUser and DelUser. * * @return This function returns pointer to a map of userrec pointers (CUList*). */ CUList* GetUsers(); /** Obtain the internal reference list of opped users * @return This function returns pointer to a map of userrec pointers (CUList*). */ CUList* GetOppedUsers(); /** Obtain the internal reference list of halfopped users * @return This function returns pointer to a map of userrec pointers (CUList*). */ CUList* GetHalfoppedUsers(); /** Obtain the internal reference list of voiced users * @return This function returns pointer to a map of userrec pointers (CUList*). */ CUList* GetVoicedUsers(); /** Returns true if the user given is on the given channel. * @param The user to look for * @return True if the user is on this channel */ bool HasUser(userrec* user); /** Creates a channel record and initialises it with default values * @throw Nothing at present. */ chanrec(InspIRCd* Instance); /** Make src kick user from this channel with the given reason. * @param src The source of the kick * @param user The user being kicked (must be on this channel) * @param reason The reason for the kick * @return The number of users left on the channel. If this is zero * when the method returns, you MUST delete the chanrec immediately! */ long KickUser(userrec *src, userrec *user, const char* reason); /** Make the server kick user from this channel with the given reason. * @param user The user being kicked (must be on this channel) * @param reason The reason for the kick * @param triggerevents True if you wish this kick to trigger module events * @return The number of users left on the channel. If this is zero * when the method returns, you MUST delete the chanrec immediately! */ long ServerKickUser(userrec* user, const char* reason, bool triggerevents); /** Part a user from this channel with the given reason. * If the reason field is NULL, no reason will be sent. * @param user The user who is parting (must be on this channel) * @param reason The (optional) part reason * @return The number of users left on the channel. If this is zero * when the method returns, you MUST delete the chanrec immediately! */ long PartUser(userrec *user, const char* reason = NULL); /* Join a user to a channel. May be a channel that doesnt exist yet. * @param user The user to join to the channel. * @param cn The channel name to join to. Does not have to exist. * @param key The key of the channel, if given * @param override If true, override all join restrictions such as +bkil * @return A pointer to the chanrec the user was joined to. A new chanrec may have * been created if the channel did not exist before the user was joined to it. * If the user could not be joined to a channel, the return value may be NULL. */ static chanrec* JoinUser(InspIRCd* ServerInstance, userrec *user, const char* cn, bool override, const char* key = ""); /** Write to a channel, from a user, using va_args for text * @param user User whos details to prefix the line with * @param text A printf-style format string which builds the output line without prefix * @param ... Zero or more POD types */ void WriteChannel(userrec* user, char* text, ...); /** Write to a channel, from a user, using std::string for text * @param user User whos details to prefix the line with * @param text A std::string containing the output line without prefix */ void WriteChannel(userrec* user, const std::string &text); /** Write to a channel, from a server, using va_args for text * @param ServName Server name to prefix the line with * @param text A printf-style format string which builds the output line without prefi * @param ... Zero or more POD type */ void WriteChannelWithServ(const char* ServName, const char* text, ...); /** Write to a channel, from a server, using std::string for text * @param ServName Server name to prefix the line with * @param text A std::string containing the output line without prefix */ void WriteChannelWithServ(const char* ServName, const std::string &text); /** Write to all users on a channel except a specific user, using va_args for text * @param user User whos details to prefix the line with, and to omit from receipt of the message * @param status The status of the users to write to, e.g. '@' or '%'. Use a value of 0 to write to everyone * @param text A printf-style format string which builds the output line without prefi * @param ... Zero or more POD type */ void WriteAllExceptSender(userrec* user, char status, char* text, ...); /** Write to all users on a channel except a specific user, using std::string for text * @param user User whos details to prefix the line with, and to omit from receipt of the message * @param status The status of the users to write to, e.g. '@' or '%'. Use a value of 0 to write to everyone * @param text A std::string containing the output line without prefix */ void WriteAllExceptSender(userrec* user, char status, const std::string& text); /** Returns the maximum number of bans allowed to be set on this channel * @return The maximum number of bans allowed */ long GetMaxBans(); /** Return the channel's modes with parameters. * @param showkey If this is set to true, the actual key is shown, * otherwise it is replaced with '<KEY>' * @return The channel mode string */ char* ChanModes(bool showkey); /** Spool the NAMES list for this channel to the given user * @param user The user to spool the NAMES list to */ void UserList(userrec *user); /** Get the number of invisible users on this channel * @return Number of invisible users */ int CountInvisible(); /** Get a users status on this channel * @param user The user to look up * @return One of STATUS_OP, STATUS_HOP, STATUS_VOICE, or zero. */ int GetStatus(userrec *user); /** Get a users status on this channel in a bitmask * @param user The user to look up * @return A bitmask containing zero or more of STATUS_OP, STATUS_HOP, STATUS_VOICE */ int GetStatusFlags(userrec *user); /** Get a users prefix on this channel in a string. * @param user The user to look up * @return A character array containing the prefix string. * Unlike GetStatus and GetStatusFlags which will only return the * core specified modes @, % and + (op, halfop and voice), GetPrefixChar * will also return module-defined prefixes. If the user has to prefix, * an empty but non-null string is returned. If the user has multiple * prefixes, the highest is returned. If you do not recognise the prefix * character you can get, you can deal with it in a 'proprtional' manner * compared to known prefixes, using GetPrefixValue(). */ const char* GetPrefixChar(userrec *user); /** Return all of a users mode prefixes into a char* string. * @param user The user to look up * @return A list of all prefix characters. There is no gauranteed order of prefixes. */ const char* GetAllPrefixChars(userrec* user); /** Get the value of a users prefix on this channel. * @param user The user to look up * @return The module or core-defined value of the users prefix. * The values for op, halfop and voice status are constants in * mode.h, and are OP_VALUE, HALFOP_VALUE, and VOICE_VALUE respectively. * If the value you are given does not match one of these three, it is * a module-defined mode, and it should be compared in proportion to * these three constants. For example a value greater than OP_VALUE * is a prefix of greater 'worth' than ops, and a value less than * VOICE_VALUE is of lesser 'worth' than a voice. */ unsigned int GetPrefixValue(userrec* user); /** This method removes all prefix characters from a user. * It will not inform the user or the channel of the removal of prefixes, * and should be used when the user parts or quits. * @param user The user to remove all prefixes from */ void RemoveAllPrefixes(userrec* user); /** Add a prefix character to a user. * Only the core should call this method, usually from * within the mode parser or when the first user joins * the channel (to grant ops to them) * @param user The user to associate the privilage with * @param prefix The prefix character to associate * @param prefix_rank The rank (value) of this prefix character * @param adding True if adding the prefix, false when removing */ void SetPrefix(userrec* user, char prefix, unsigned int prefix_rank, bool adding); /** Destructor for chanrec */ virtual ~chanrec() { /* stub */ } }; #endif