/* * ircd-ratbox: A slightly useful ircd. * channel.h: The ircd channel header. * * Copyright (C) 1990 Jarkko Oikarinen and University of Oulu, Co Center * Copyright (C) 1996-2002 Hybrid Development Team * Copyright (C) 2002-2004 ircd-ratbox development team * * This program 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; either version 2 of the License, or * (at your option) any later version. * * 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, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 * USA * */ #ifndef INCLUDED_channel_h #define INCLUDED_channel_h #define MODEBUFLEN 200 /* Maximum mode changes allowed per client, per server is different */ #define MAXMODEPARAMS 4 #define MAXMODEPARAMSSERV 10 struct Client; /* mode structure for channels */ struct Mode { unsigned int mode; unsigned int off_mode; int limit; char key[KEYLEN]; unsigned int join_num; unsigned int join_time; char forward[LOC_CHANNELLEN + 1]; }; /* channel structure */ struct Channel { rb_dlink_node node; struct Mode mode; char *topic; char *topic_info; time_t topic_time; time_t last_knock; /* don't allow knock to flood */ rb_dlink_list members; /* channel members */ rb_dlink_list locmembers; /* local channel members */ rb_dlink_list invites; rb_dlink_list banlist; rb_dlink_list exceptlist; rb_dlink_list invexlist; rb_dlink_list quietlist; time_t first_received_message_time; /* channel flood control */ int received_number_of_privmsgs; int flood_noticed; unsigned int join_count; /* joins within delta */ unsigned int join_delta; /* last ts of join */ struct Dictionary *metadata; unsigned long bants; time_t channelts; char *chname; }; struct membership { rb_dlink_node channode; rb_dlink_node locchannode; rb_dlink_node usernode; struct Channel *chptr; struct Client *client_p; unsigned int flags; unsigned long bants; }; #define BANLEN 195 struct Ban { char *banstr; char *who; time_t when; rb_dlink_node node; }; struct mode_letter { int mode; char letter; }; struct ChModeChange { char letter; const char *arg; const char *id; int dir; int caps; int nocaps; int mems; int override; struct Client *client; }; struct ChCapCombo { int count; int cap_yes; int cap_no; }; typedef void (*ChannelModeFunc)(struct Client *source_p, struct Channel *chptr, int alevel, int parc, int *parn, const char **parv, int *errors, int dir, char c, long mode_type); struct ChannelMode { ChannelModeFunc set_func; long mode_type; }; /* modes added by the module files in modes/ */ struct module_modes { unsigned int MODE_REGONLY; unsigned int MODE_NOCTCP; /* Block CTCPs directed to this channel */ unsigned int MODE_NOCOLOR; unsigned int MODE_EXLIMIT; /* exempt from list limits, +b/+e/+I/+q */ unsigned int MODE_PERMANENT; /* permanant channel, +P */ unsigned int MODE_OPMODERATE; /* send rejected messages to ops */ unsigned int MODE_FREEINVITE; /* allow free use of /invite */ unsigned int MODE_FREETARGET; /* can be forwarded to without authorization */ unsigned int MODE_DISFORWARD; /* disable channel forwarding */ unsigned int MODE_THROTTLE; /* throttle joins */ unsigned int MODE_FORWARD; unsigned int MODE_NONOTICE; /* Block notices directed to this channel */ unsigned int MODE_NOACTION; /* Block CTCP ACTION directed to this channel */ unsigned int MODE_NOKICK; /* Disable /kick on this channel */ unsigned int MODE_NONICK; /* Disable /nick for anyone on this channel */ unsigned int MODE_NOCAPS; /* Block messages in all capital letters */ unsigned int MODE_NOREJOIN; /* Block rejoin immediately after kick */ unsigned int MODE_NOREPEAT; /* Block repeat messages */ unsigned int MODE_NOOPERKICK; /* disallow kicking opers */ unsigned int CHFL_QUIET; }; typedef int (*ExtbanFunc)(const char *data, struct Client *client_p, struct Channel *chptr, long mode_type); /* can_send results */ #define CAN_SEND_NO 0 #define CAN_SEND_NONOP 1 #define CAN_SEND_OPV 2 /* channel status flags */ #define CHFL_PEON 0x0000 /* normal member of channel */ #define CHFL_CHANOP 0x0001 /* Channel operator */ #define CHFL_VOICE 0x0002 /* the power to speak */ #define CHFL_BANNED 0x0008 /* cached as banned */ #define CHFL_QUIETED 0x0010 /* cached as being +q victim */ #define ONLY_SERVERS 0x0020 #define CHFL_HALFOP 0x0040 #define CHFL_ADMIN 0x0080 #define ONLY_OPERS 0x0100 #define ALL_MEMBERS CHFL_PEON #define ONLY_CHANOPS (CHFL_ADMIN|CHFL_CHANOP|CHFL_HALFOP) #define ONLY_CHANOPSVOICED (CHFL_ADMIN|CHFL_CHANOP|CHFL_HALFOP|CHFL_VOICE) #define is_chmode_h(x) ((x) && (x)->flags & CHFL_HALFOP) /* does not check if halfop is enabled, should typically not be used */ #define is_chmode_a(x) ((x) && (x)->flags & CHFL_ADMIN) /* does not check if admin is enabled, should typically not be used */ #define is_chanop(x) ((x) && (x)->flags & CHFL_CHANOP) #define is_voiced(x) ((x) && (x)->flags & CHFL_VOICE) #define can_send_banned(x) ((x) && (x)->flags & (CHFL_BANNED|CHFL_QUIETED)) /* channel modes ONLY */ #define MODE_PRIVATE 0x0001 #define MODE_SECRET 0x0002 #define MODE_MODERATED 0x0004 #define MODE_TOPICLIMIT 0x0008 #define MODE_INVITEONLY 0x0010 #define MODE_NOPRIVMSGS 0x0020 #define CHFL_BAN 0x10000000 /* ban channel flag */ #define CHFL_EXCEPTION 0x20000000 /* exception to ban channel flag */ #define CHFL_INVEX 0x40000000 /* mode flags for direction indication */ #define MODE_QUERY 0 #define MODE_ADD 1 #define MODE_DEL -1 #define SecretChannel(x) ((x) && ((x)->mode.mode & MODE_SECRET)) #define HiddenChannel(x) ((x) && ((x)->mode.mode & MODE_PRIVATE)) #define PubChannel(x) ((!x) || ((x)->mode.mode &\ (MODE_PRIVATE | MODE_SECRET)) == 0) /* channel visible */ #define ShowChannel(v,c) (PubChannel(c) || IsMember((v),(c))) #define IsMember(who, chan) ((who && who->user && \ find_channel_membership(chan, who)) ? 1 : 0) #define IsChannelName(name) ((name) && (*(name) == '#' || *(name) == '&')) /* extban function results */ #define EXTBAN_INVALID -1 /* invalid mask, false even if negated */ #define EXTBAN_NOMATCH 0 /* valid mask, no match */ #define EXTBAN_MATCH 1 /* matches */ extern rb_dlink_list global_channel_list; void init_channels(void); void init_module_modes(void); struct Channel *allocate_channel(const char *chname); void free_channel(struct Channel *chptr); struct Ban *allocate_ban(const char *, const char *); void free_ban(struct Ban *bptr); extern void destroy_channel(struct Channel *); extern int can_send(struct Channel *chptr, struct Client *who, struct membership *); extern int is_banned(struct Channel *chptr, struct Client *who, struct membership *msptr, const char *, const char *); extern int is_quieted(struct Channel *chptr, struct Client *who, struct membership *msptr, const char *, const char *); extern int can_join(struct Client *source_p, struct Channel *chptr, char *key); extern struct membership *find_channel_membership(struct Channel *, struct Client *); extern const char *find_channel_status(struct membership *msptr, int combine); extern int is_halfop(struct membership *msptr); extern int is_admin(struct membership *msptr); extern int is_any_op(struct membership *msptr); extern int is_chanop_voiced(struct membership *msptr); extern int can_kick_deop(struct membership *source, struct membership *target); extern void add_user_to_channel(struct Channel *, struct Client *, int flags); extern void remove_user_from_channel(struct membership *); extern void remove_user_from_channels(struct Client *); extern void invalidate_bancache_user(struct Client *); extern void free_channel_list(rb_dlink_list *); extern int check_channel_name(const char *name); extern void channel_member_names(struct Channel *chptr, struct Client *, int show_eon); extern void del_invite(struct Channel *chptr, struct Client *who); const char *channel_modes(struct Channel *chptr, struct Client *who); extern int has_common_channel(struct Client *client1, struct Client *client2); extern struct Channel *find_bannickchange_channel(struct Client *client_p); extern struct Channel *find_nonickchange_channel(struct Client *client_p); extern void check_spambot_warning(struct Client *source_p, const char *name); extern void check_splitmode(void *); void set_channel_topic(struct Channel *chptr, const char *topic, const char *topic_info, time_t topicts); extern void init_chcap_usage_counts(void); extern void set_chcap_usage_counts(struct Client *serv_p); extern void unset_chcap_usage_counts(struct Client *serv_p); extern void send_cap_mode_changes(struct Client *client_p, struct Client *source_p, struct Channel *chptr, struct ChModeChange foo[], int); void resv_chan_forcepart(const char *name, const char *reason, int temp_time); extern void set_channel_mode(struct Client *client_p, struct Client *source_p, struct Channel *chptr, struct membership *msptr, int parc, const char *parv[]); extern struct ChannelMode chmode_table[256]; extern int add_id(struct Client *source_p, struct Channel *chptr, const char *banid, rb_dlink_list * list, long mode_type); extern int del_id(struct Channel *chptr, const char *banid, rb_dlink_list * list, long mode_type); extern ExtbanFunc extban_table[256]; extern int match_extban(const char *banstr, struct Client *client_p, struct Channel *chptr, long mode_type); extern int valid_extban(const char *banstr, struct Client *client_p, struct Channel *chptr, long mode_type); const char * get_extban_string(void); extern struct Channel * check_forward(struct Client *source_p, struct Channel *chptr, char *key); extern void user_join(struct Client * client_p, struct Client * source_p, const char * channels, const char * keys); extern void do_join_0(struct Client *client_p, struct Client *source_p); extern int check_channel_name_loc(struct Client *source_p, const char *name); extern struct Metadata *channel_metadata_add(struct Channel *target, const char *name, const char *value, int propegate); extern struct Metadata *channel_metadata_time_add(struct Channel *target, const char *name, time_t timevalue, const char *value); extern void channel_metadata_delete(struct Channel *target, const char *name, int propegate); extern struct Metadata *channel_metadata_find(struct Channel *target, const char *name); extern void channel_metadata_clear(struct Channel *target); #endif /* INCLUDED_channel_h */