1 |
/* |
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* ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd). |
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* channel_mode.c: Controls modes on channels. |
4 |
* |
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* Copyright (C) 2005 by the past and present ircd coders, and others. |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 |
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* USA |
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* |
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* $Id$ |
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*/ |
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|
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#include "stdinc.h" |
26 |
#include "tools.h" |
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#include "channel.h" |
28 |
#include "channel_mode.h" |
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#include "client.h" |
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#include "common.h" |
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#include "hash.h" |
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#include "irc_string.h" |
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#include "sprintf_irc.h" |
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#include "ircd.h" |
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#include "list.h" |
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#include "numeric.h" |
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#include "s_serv.h" /* captab */ |
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#include "s_user.h" |
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#include "send.h" |
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#include "whowas.h" |
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#include "s_conf.h" /* ConfigFileEntry, ConfigChannel */ |
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#include "event.h" |
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#include "memory.h" |
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#include "balloc.h" |
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#include "s_log.h" |
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|
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/* some small utility functions */ |
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static char *check_string(char *); |
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static char *fix_key(char *); |
50 |
static char *fix_key_old(char *); |
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static void chm_nosuch(struct Client *, struct Client *, |
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struct Channel *, int, int *, char **, int *, int, |
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int, char, void *, const char *); |
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static void chm_simple(struct Client *, struct Client *, struct Channel *, |
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int, int *, char **, int *, int, int, char, void *, |
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const char *); |
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static void chm_limit(struct Client *, struct Client *, struct Channel *, |
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int, int *, char **, int *, int, int, char, void *, |
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const char *); |
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static void chm_key(struct Client *, struct Client *, struct Channel *, |
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int, int *, char **, int *, int, int, char, void *, |
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const char *); |
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static void chm_op(struct Client *, struct Client *, struct Channel *, int, |
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int *, char **, int *, int, int, char, void *, |
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const char *); |
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#ifdef HALFOPS |
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static void chm_hop(struct Client *, struct Client *, struct Channel *, int, |
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int *, char **, int *, int, int, char, void *, |
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const char *); |
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#endif |
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static void chm_voice(struct Client *, struct Client *, struct Channel *, |
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int, int *, char **, int *, int, int, char, void *, |
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const char *); |
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static void chm_ban(struct Client *, struct Client *, struct Channel *, int, |
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int *, char **, int *, int, int, char, void *, |
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const char *); |
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static void chm_except(struct Client *, struct Client *, struct Channel *, |
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int, int *, char **, int *, int, int, char, void *, |
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const char *); |
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static void chm_invex(struct Client *, struct Client *, struct Channel *, |
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int, int *, char **, int *, int, int, char, void *, |
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const char *); |
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static void send_cap_mode_changes(struct Client *, struct Client *, |
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struct Channel *, int, int); |
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static void send_mode_changes(struct Client *, struct Client *, |
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struct Channel *, char *); |
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|
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/* 10 is a magic number in hybrid 6 NFI where it comes from -db */ |
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#define BAN_FUDGE 10 |
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#define NCHCAPS (sizeof(channel_capabs)/sizeof(int)) |
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#define NCHCAP_COMBOS (1 << NCHCAPS) |
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|
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/* some buffers for rebuilding channel/nick lists with ,'s */ |
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static char modebuf[IRCD_BUFSIZE]; |
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static char parabuf[MODEBUFLEN]; |
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static struct ChModeChange mode_changes[IRCD_BUFSIZE]; |
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static int mode_count; |
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static int mode_limit; /* number of modes set other than simple */ |
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static int simple_modes_mask; /* bit mask of simple modes already set */ |
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#ifdef HALFOPS |
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static int channel_capabs[] = { CAP_EX, CAP_IE, CAP_TS6, CAP_HOPS }; |
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#else |
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static int channel_capabs[] = { CAP_EX, CAP_IE, CAP_TS6 }; |
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#endif |
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static struct ChCapCombo chcap_combos[NCHCAP_COMBOS]; |
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extern BlockHeap *ban_heap; |
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|
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|
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/* XXX check_string is propably not longer required in add_id and del_id */ |
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/* check_string() |
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* |
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* inputs - string to check |
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* output - pointer to modified string |
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* side effects - Fixes a string so that the first white space found |
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* becomes an end of string marker (`\0`). |
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* returns the 'fixed' string or "*" if the string |
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* was NULL length or a NULL pointer. |
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*/ |
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static char * |
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check_string(char *s) |
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{ |
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char *str = s; |
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static char star[] = "*"; |
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|
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if (EmptyString(s)) |
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return (star); |
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|
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for (; *s; ++s) |
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{ |
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if (IsSpace(*s)) |
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{ |
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*s = '\0'; |
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break; |
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} |
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} |
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|
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return (str); |
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} |
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|
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/* |
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* Ban functions to work with mode +b/e/d/I |
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*/ |
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/* add the specified ID to the channel.. |
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* -is 8/9/00 |
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*/ |
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|
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int |
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add_id(struct Client *client_p, struct Channel *chptr, char *banid, int type) |
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{ |
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dlink_list *list; |
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dlink_node *ban; |
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size_t len = 0; |
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struct Ban *actualBan; |
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unsigned int num_mask; |
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char *name = NULL, *user = NULL, *host = NULL; |
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|
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/* dont let local clients overflow the b/e/I lists */ |
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if (MyClient(client_p)) |
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{ |
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num_mask = dlink_list_length(&chptr->banlist) + |
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dlink_list_length(&chptr->exceptlist) + |
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dlink_list_length(&chptr->invexlist); |
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|
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if (num_mask >= ConfigChannel.max_bans) |
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{ |
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sendto_one(client_p, form_str(ERR_BANLISTFULL), |
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me.name, client_p->name, chptr->chname, banid); |
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return 0; |
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} |
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|
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collapse(banid); |
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} |
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|
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split_nuh(check_string(banid), &name, &user, &host); |
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|
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/* |
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* Assemble a n!u@h and print it back to banid for sending |
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* the mode to the channel. |
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*/ |
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len = ircsprintf(banid, "%s!%s@%s", name, user, host); |
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|
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switch (type) |
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{ |
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case CHFL_BAN: |
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list = &chptr->banlist; |
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clear_ban_cache(chptr); |
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break; |
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case CHFL_EXCEPTION: |
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list = &chptr->exceptlist; |
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clear_ban_cache(chptr); |
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break; |
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case CHFL_INVEX: |
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list = &chptr->invexlist; |
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break; |
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default: |
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assert(0); |
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return 0; |
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} |
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|
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DLINK_FOREACH(ban, list->head) |
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{ |
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actualBan = ban->data; |
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if (!irccmp(actualBan->name, name) && |
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!irccmp(actualBan->username, user) && |
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!irccmp(actualBan->host, host)) |
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{ |
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MyFree(name); |
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MyFree(user); |
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MyFree(host); |
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return 0; |
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} |
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} |
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|
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actualBan = BlockHeapAlloc(ban_heap); |
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actualBan->when = CurrentTime; |
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actualBan->name = name; |
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actualBan->username = user; |
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actualBan->host = host; |
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actualBan->len = len-2; /* -2 for @ and ! */ |
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|
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if (IsClient(client_p)) |
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{ |
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actualBan->who = |
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MyMalloc(strlen(client_p->name) + |
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strlen(client_p->username) + |
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strlen(client_p->host) + 3); |
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ircsprintf(actualBan->who, "%s!%s@%s", |
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client_p->name, client_p->username, client_p->host); |
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} |
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else |
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DupString(actualBan->who, client_p->name); |
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|
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dlinkAdd(actualBan, &actualBan->node, list); |
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|
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return 1; |
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} |
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|
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/* |
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* inputs - pointer to channel |
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* - pointer to ban id |
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* - type of ban, i.e. ban, exception, invex |
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* output - 0 for failure, 1 for success |
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* side effects - |
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*/ |
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static int |
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del_id(struct Channel *chptr, char *banid, int type) |
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{ |
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dlink_list *list; |
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dlink_node *ban; |
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struct Ban *banptr; |
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char *name = NULL, *user = NULL, *host = NULL; |
252 |
|
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if (banid == NULL) |
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return 0; |
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|
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split_nuh(check_string(banid), &name, &user, &host); |
257 |
|
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/* |
259 |
* Assemble a n!u@h and print it back to banid for sending |
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* the mode to the channel. |
261 |
*/ |
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ircsprintf(banid, "%s!%s@%s", name, user, host); |
263 |
|
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switch (type) |
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{ |
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case CHFL_BAN: |
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list = &chptr->banlist; |
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clear_ban_cache(chptr); |
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break; |
270 |
case CHFL_EXCEPTION: |
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list = &chptr->exceptlist; |
272 |
clear_ban_cache(chptr); |
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break; |
274 |
case CHFL_INVEX: |
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list = &chptr->invexlist; |
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break; |
277 |
default: |
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sendto_realops_flags(UMODE_ALL, L_ALL, |
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"del_id() called with unknown ban type %d!", type); |
280 |
MyFree(name); |
281 |
MyFree(user); |
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MyFree(host); |
283 |
return(0); |
284 |
} |
285 |
|
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DLINK_FOREACH(ban, list->head) |
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{ |
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banptr = ban->data; |
289 |
|
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if (!irccmp(name, banptr->name) && |
291 |
!irccmp(user, banptr->username) && |
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!irccmp(host, banptr->host)) |
293 |
{ |
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remove_ban(banptr, list); |
295 |
MyFree(name); |
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MyFree(user); |
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MyFree(host); |
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return 1; |
299 |
} |
300 |
} |
301 |
|
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MyFree(name); |
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MyFree(user); |
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MyFree(host); |
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return 0; |
306 |
} |
307 |
|
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static const struct mode_letter |
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{ |
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const unsigned int mode; |
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const unsigned char letter; |
312 |
} flags[] = { |
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{ MODE_INVITEONLY, 'i' }, |
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{ MODE_MODERATED, 'm' }, |
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{ MODE_NOPRIVMSGS, 'n' }, |
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{ MODE_PRIVATE, 'p' }, |
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{ MODE_SECRET, 's' }, |
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{ MODE_TOPICLIMIT, 't' }, |
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{ 0, '\0' } |
320 |
}; |
321 |
|
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/* channel_modes() |
323 |
* |
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* inputs - pointer to channel |
325 |
* - pointer to client |
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* - pointer to mode buf |
327 |
* - pointer to parameter buf |
328 |
* output - NONE |
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* side effects - write the "simple" list of channel modes for channel |
330 |
* chptr onto buffer mbuf with the parameters in pbuf. |
331 |
*/ |
332 |
void |
333 |
channel_modes(struct Channel *chptr, struct Client *client_p, |
334 |
char *mbuf, char *pbuf) |
335 |
{ |
336 |
int i; |
337 |
|
338 |
*mbuf++ = '+'; |
339 |
*pbuf = '\0'; |
340 |
|
341 |
for (i = 0; flags[i].mode; ++i) |
342 |
if (chptr->mode.mode & flags[i].mode) |
343 |
*mbuf++ = flags[i].letter; |
344 |
|
345 |
if (chptr->mode.limit) |
346 |
{ |
347 |
*mbuf++ = 'l'; |
348 |
|
349 |
if (IsMember(client_p, chptr) || IsServer(client_p)) |
350 |
pbuf += ircsprintf(pbuf, "%d ", chptr->mode.limit); |
351 |
} |
352 |
|
353 |
if (chptr->mode.key[0]) |
354 |
{ |
355 |
*mbuf++ = 'k'; |
356 |
|
357 |
if (*pbuf || IsMember(client_p, chptr) || IsServer(client_p)) |
358 |
ircsprintf(pbuf, "%s ", chptr->mode.key); |
359 |
} |
360 |
|
361 |
*mbuf = '\0'; |
362 |
} |
363 |
|
364 |
/* fix_key() |
365 |
* |
366 |
* inputs - pointer to key to clean up |
367 |
* output - pointer to cleaned up key |
368 |
* side effects - input string is modified |
369 |
* |
370 |
* stolen from Undernet's ircd -orabidoo |
371 |
*/ |
372 |
static char * |
373 |
fix_key(char *arg) |
374 |
{ |
375 |
unsigned char *s, *t, c; |
376 |
|
377 |
for (s = t = (unsigned char *)arg; (c = *s); s++) |
378 |
{ |
379 |
c &= 0x7f; |
380 |
if (c != ':' && c > ' ' && c != ',') |
381 |
*t++ = c; |
382 |
} |
383 |
|
384 |
*t = '\0'; |
385 |
return(arg); |
386 |
} |
387 |
|
388 |
/* fix_key_old() |
389 |
* |
390 |
* inputs - pointer to key to clean up |
391 |
* output - pointer to cleaned up key |
392 |
* side effects - input string is modifed |
393 |
* |
394 |
* Here we attempt to be compatible with older non-hybrid servers. |
395 |
* We can't back down from the ':' issue however. --Rodder |
396 |
*/ |
397 |
static char * |
398 |
fix_key_old(char *arg) |
399 |
{ |
400 |
unsigned char *s, *t, c; |
401 |
|
402 |
for (s = t = (unsigned char *)arg; (c = *s); s++) |
403 |
{ |
404 |
c &= 0x7f; |
405 |
if ((c != 0x0a) && (c != ':') && (c != 0x0d) && (c != ',')) |
406 |
*t++ = c; |
407 |
} |
408 |
|
409 |
*t = '\0'; |
410 |
return(arg); |
411 |
} |
412 |
|
413 |
/* bitmasks for various error returns that set_channel_mode should only return |
414 |
* once per call -orabidoo |
415 |
*/ |
416 |
|
417 |
#define SM_ERR_NOTS 0x00000001 /* No TS on channel */ |
418 |
#define SM_ERR_NOOPS 0x00000002 /* No chan ops */ |
419 |
#define SM_ERR_UNKNOWN 0x00000004 |
420 |
#define SM_ERR_RPL_B 0x00000008 |
421 |
#define SM_ERR_RPL_E 0x00000010 |
422 |
#define SM_ERR_NOTONCHANNEL 0x00000020 /* Not on channel */ |
423 |
#define SM_ERR_RPL_I 0x00000040 |
424 |
|
425 |
/* Now lets do some stuff to keep track of what combinations of |
426 |
* servers exist... |
427 |
* Note that the number of combinations doubles each time you add |
428 |
* something to this list. Each one is only quick if no servers use that |
429 |
* combination, but if the numbers get too high here MODE will get too |
430 |
* slow. I suggest if you get more than 7 here, you consider getting rid |
431 |
* of some and merging or something. If it wasn't for irc+cs we would |
432 |
* probably not even need to bother about most of these, but unfortunately |
433 |
* we do. -A1kmm |
434 |
*/ |
435 |
|
436 |
/* void init_chcap_usage_counts(void) |
437 |
* |
438 |
* Inputs - none |
439 |
* Output - none |
440 |
* Side-effects - Initialises the usage counts to zero. Fills in the |
441 |
* chcap_yes and chcap_no combination tables. |
442 |
*/ |
443 |
void |
444 |
init_chcap_usage_counts(void) |
445 |
{ |
446 |
unsigned long m, c, y, n; |
447 |
|
448 |
memset(chcap_combos, 0, sizeof(chcap_combos)); |
449 |
|
450 |
/* For every possible combination */ |
451 |
for (m = 0; m < NCHCAP_COMBOS; m++) |
452 |
{ |
453 |
/* Check each capab */ |
454 |
for (c = y = n = 0; c < NCHCAPS; c++) |
455 |
{ |
456 |
if ((m & (1 << c)) == 0) |
457 |
n |= channel_capabs[c]; |
458 |
else |
459 |
y |= channel_capabs[c]; |
460 |
} |
461 |
chcap_combos[m].cap_yes = y; |
462 |
chcap_combos[m].cap_no = n; |
463 |
} |
464 |
} |
465 |
|
466 |
/* void set_chcap_usage_counts(struct Client *serv_p) |
467 |
* Input: serv_p; The client whose capabs to register. |
468 |
* Output: none |
469 |
* Side-effects: Increments the usage counts for the correct capab |
470 |
* combination. |
471 |
*/ |
472 |
void |
473 |
set_chcap_usage_counts(struct Client *serv_p) |
474 |
{ |
475 |
int n; |
476 |
|
477 |
for (n = 0; n < NCHCAP_COMBOS; n++) |
478 |
{ |
479 |
if (((serv_p->localClient->caps & chcap_combos[n].cap_yes) == |
480 |
chcap_combos[n].cap_yes) && |
481 |
((serv_p->localClient->caps & chcap_combos[n].cap_no) == 0)) |
482 |
{ |
483 |
chcap_combos[n].count++; |
484 |
return; |
485 |
} |
486 |
} |
487 |
|
488 |
/* This should be impossible -A1kmm. */ |
489 |
assert(0); |
490 |
} |
491 |
|
492 |
/* void set_chcap_usage_counts(struct Client *serv_p) |
493 |
* |
494 |
* Inputs - serv_p; The client whose capabs to register. |
495 |
* Output - none |
496 |
* Side-effects - Decrements the usage counts for the correct capab |
497 |
* combination. |
498 |
*/ |
499 |
void |
500 |
unset_chcap_usage_counts(struct Client *serv_p) |
501 |
{ |
502 |
int n; |
503 |
|
504 |
for (n = 0; n < NCHCAP_COMBOS; n++) |
505 |
{ |
506 |
if ((serv_p->localClient->caps & chcap_combos[n].cap_yes) == |
507 |
chcap_combos[n].cap_yes && |
508 |
(serv_p->localClient->caps & chcap_combos[n].cap_no) == 0) |
509 |
{ |
510 |
/* Hopefully capabs can't change dynamically or anything... */ |
511 |
assert(chcap_combos[n].count > 0); |
512 |
chcap_combos[n].count--; |
513 |
return; |
514 |
} |
515 |
} |
516 |
|
517 |
/* This should be impossible -A1kmm. */ |
518 |
assert(0); |
519 |
} |
520 |
|
521 |
/* Mode functions handle mode changes for a particular mode... */ |
522 |
static void |
523 |
chm_nosuch(struct Client *client_p, struct Client *source_p, |
524 |
struct Channel *chptr, int parc, int *parn, |
525 |
char **parv, int *errors, int alev, int dir, char c, void *d, |
526 |
const char *chname) |
527 |
{ |
528 |
if (*errors & SM_ERR_UNKNOWN) |
529 |
return; |
530 |
|
531 |
*errors |= SM_ERR_UNKNOWN; |
532 |
sendto_one(source_p, form_str(ERR_UNKNOWNMODE), me.name, |
533 |
source_p->name, c); |
534 |
} |
535 |
|
536 |
static void |
537 |
chm_simple(struct Client *client_p, struct Client *source_p, struct Channel *chptr, |
538 |
int parc, int *parn, char **parv, int *errors, int alev, int dir, |
539 |
char c, void *d, const char *chname) |
540 |
{ |
541 |
long mode_type; |
542 |
|
543 |
mode_type = (long)d; |
544 |
|
545 |
if ((alev < CHACCESS_HALFOP) || |
546 |
((mode_type == MODE_PRIVATE) && (alev < CHACCESS_CHANOP))) |
547 |
{ |
548 |
if (!(*errors & SM_ERR_NOOPS)) |
549 |
sendto_one(source_p, form_str(alev == CHACCESS_NOTONCHAN ? |
550 |
ERR_NOTONCHANNEL : ERR_CHANOPRIVSNEEDED), |
551 |
me.name, source_p->name, chname); |
552 |
*errors |= SM_ERR_NOOPS; |
553 |
return; |
554 |
} |
555 |
|
556 |
/* If have already dealt with this simple mode, ignore it */ |
557 |
if (simple_modes_mask & mode_type) |
558 |
return; |
559 |
|
560 |
simple_modes_mask |= mode_type; |
561 |
|
562 |
/* setting + */ |
563 |
/* Apparently, (though no one has ever told the hybrid group directly) |
564 |
* admins don't like redundant mode checking. ok. It would have been nice |
565 |
* if you had have told us directly. I've left the original code snippets |
566 |
* in place. |
567 |
* |
568 |
* -Dianora |
569 |
*/ |
570 |
if ((dir == MODE_ADD)) /* && !(chptr->mode.mode & mode_type)) */ |
571 |
{ |
572 |
chptr->mode.mode |= mode_type; |
573 |
|
574 |
mode_changes[mode_count].letter = c; |
575 |
mode_changes[mode_count].dir = MODE_ADD; |
576 |
mode_changes[mode_count].caps = 0; |
577 |
mode_changes[mode_count].nocaps = 0; |
578 |
mode_changes[mode_count].id = NULL; |
579 |
mode_changes[mode_count].mems = ALL_MEMBERS; |
580 |
mode_changes[mode_count++].arg = NULL; |
581 |
} |
582 |
else if ((dir == MODE_DEL)) /* && (chptr->mode.mode & mode_type)) */ |
583 |
{ |
584 |
/* setting - */ |
585 |
|
586 |
chptr->mode.mode &= ~mode_type; |
587 |
|
588 |
mode_changes[mode_count].letter = c; |
589 |
mode_changes[mode_count].dir = MODE_DEL; |
590 |
mode_changes[mode_count].caps = 0; |
591 |
mode_changes[mode_count].nocaps = 0; |
592 |
mode_changes[mode_count].mems = ALL_MEMBERS; |
593 |
mode_changes[mode_count].id = NULL; |
594 |
mode_changes[mode_count++].arg = NULL; |
595 |
} |
596 |
} |
597 |
|
598 |
static void |
599 |
chm_ban(struct Client *client_p, struct Client *source_p, |
600 |
struct Channel *chptr, int parc, int *parn, |
601 |
char **parv, int *errors, int alev, int dir, char c, void *d, |
602 |
const char *chname) |
603 |
{ |
604 |
char *mask = NULL; |
605 |
|
606 |
if (dir == MODE_QUERY || parc <= *parn) |
607 |
{ |
608 |
dlink_node *ptr = NULL; |
609 |
|
610 |
if (*errors & SM_ERR_RPL_B) |
611 |
return; |
612 |
|
613 |
*errors |= SM_ERR_RPL_B; |
614 |
|
615 |
DLINK_FOREACH(ptr, chptr->banlist.head) |
616 |
{ |
617 |
const struct Ban *banptr = ptr->data; |
618 |
sendto_one(client_p, form_str(RPL_BANLIST), |
619 |
me.name, client_p->name, chname, |
620 |
banptr->name, banptr->username, banptr->host, |
621 |
banptr->who, banptr->when); |
622 |
} |
623 |
|
624 |
sendto_one(source_p, form_str(RPL_ENDOFBANLIST), me.name, |
625 |
source_p->name, chname); |
626 |
return; |
627 |
} |
628 |
|
629 |
if (alev < CHACCESS_HALFOP) |
630 |
{ |
631 |
if (!(*errors & SM_ERR_NOOPS)) |
632 |
sendto_one(source_p, form_str(alev == CHACCESS_NOTONCHAN ? |
633 |
ERR_NOTONCHANNEL : ERR_CHANOPRIVSNEEDED), |
634 |
me.name, source_p->name, chname); |
635 |
*errors |= SM_ERR_NOOPS; |
636 |
return; |
637 |
} |
638 |
|
639 |
if (MyClient(source_p) && (++mode_limit > MAXMODEPARAMS)) |
640 |
return; |
641 |
|
642 |
mask = parv[(*parn)++]; |
643 |
|
644 |
if (IsServer(client_p)) |
645 |
if (strchr(mask, ' ')) |
646 |
return; |
647 |
|
648 |
switch (dir) |
649 |
{ |
650 |
case MODE_ADD: |
651 |
if (!add_id(source_p, chptr, mask, CHFL_BAN)) |
652 |
return; |
653 |
break; |
654 |
case MODE_DEL: |
655 |
/* XXX grrrrrrr */ |
656 |
#ifdef NO_BAN_COOKIE |
657 |
if (!del_id(chptr, mask, CHFL_BAN)) |
658 |
return; |
659 |
#else |
660 |
/* XXX this hack allows /mode * +o-b nick ban.cookie |
661 |
* I'd like to see this hack go away in the future. |
662 |
*/ |
663 |
del_id(chptr, mask, CHFL_BAN); |
664 |
#endif |
665 |
break; |
666 |
default: |
667 |
assert(0); |
668 |
} |
669 |
|
670 |
mode_changes[mode_count].letter = c; |
671 |
mode_changes[mode_count].dir = dir; |
672 |
mode_changes[mode_count].caps = 0; |
673 |
mode_changes[mode_count].nocaps = 0; |
674 |
mode_changes[mode_count].mems = ALL_MEMBERS; |
675 |
mode_changes[mode_count].id = NULL; |
676 |
mode_changes[mode_count++].arg = mask; |
677 |
} |
678 |
|
679 |
static void |
680 |
chm_except(struct Client *client_p, struct Client *source_p, |
681 |
struct Channel *chptr, int parc, int *parn, |
682 |
char **parv, int *errors, int alev, int dir, char c, void *d, |
683 |
const char *chname) |
684 |
{ |
685 |
char *mask = NULL; |
686 |
|
687 |
/* if we have +e disabled, allow local clients to do anything but |
688 |
* set the mode. This prevents the abuse of +e when just a few |
689 |
* servers support it. --fl |
690 |
*/ |
691 |
if (!ConfigChannel.use_except && MyClient(source_p) && |
692 |
((dir == MODE_ADD) && (parc > *parn))) |
693 |
{ |
694 |
if (*errors & SM_ERR_RPL_E) |
695 |
return; |
696 |
|
697 |
*errors |= SM_ERR_RPL_E; |
698 |
return; |
699 |
} |
700 |
|
701 |
if (alev < CHACCESS_HALFOP) |
702 |
{ |
703 |
if (!(*errors & SM_ERR_NOOPS)) |
704 |
sendto_one(source_p, form_str(alev == CHACCESS_NOTONCHAN ? |
705 |
ERR_NOTONCHANNEL : ERR_CHANOPRIVSNEEDED), |
706 |
me.name, source_p->name, chname); |
707 |
*errors |= SM_ERR_NOOPS; |
708 |
return; |
709 |
} |
710 |
|
711 |
if (dir == MODE_QUERY || parc <= *parn) |
712 |
{ |
713 |
dlink_node *ptr = NULL; |
714 |
|
715 |
if (*errors & SM_ERR_RPL_E) |
716 |
return; |
717 |
|
718 |
*errors |= SM_ERR_RPL_E; |
719 |
|
720 |
DLINK_FOREACH(ptr, chptr->exceptlist.head) |
721 |
{ |
722 |
const struct Ban *banptr = ptr->data; |
723 |
sendto_one(client_p, form_str(RPL_EXCEPTLIST), |
724 |
me.name, client_p->name, chname, |
725 |
banptr->name, banptr->username, banptr->host, |
726 |
banptr->who, banptr->when); |
727 |
} |
728 |
|
729 |
sendto_one(source_p, form_str(RPL_ENDOFEXCEPTLIST), me.name, |
730 |
source_p->name, chname); |
731 |
return; |
732 |
} |
733 |
|
734 |
if (MyClient(source_p) && (++mode_limit > MAXMODEPARAMS)) |
735 |
return; |
736 |
|
737 |
mask = parv[(*parn)++]; |
738 |
|
739 |
if (IsServer(client_p)) |
740 |
if (strchr(mask, ' ')) |
741 |
return; |
742 |
|
743 |
switch (dir) |
744 |
{ |
745 |
case MODE_ADD: |
746 |
if (!add_id(source_p, chptr, mask, CHFL_EXCEPTION)) |
747 |
return; |
748 |
break; |
749 |
case MODE_DEL: |
750 |
if (!del_id(chptr, mask, CHFL_EXCEPTION)) |
751 |
return; |
752 |
break; |
753 |
default: |
754 |
assert(0); |
755 |
} |
756 |
|
757 |
mode_changes[mode_count].letter = c; |
758 |
mode_changes[mode_count].dir = dir; |
759 |
mode_changes[mode_count].caps = CAP_EX; |
760 |
mode_changes[mode_count].nocaps = 0; |
761 |
|
762 |
if (ConfigChannel.use_except) |
763 |
mode_changes[mode_count].mems = ONLY_CHANOPS; |
764 |
else |
765 |
mode_changes[mode_count].mems = ONLY_SERVERS; |
766 |
|
767 |
mode_changes[mode_count].id = NULL; |
768 |
mode_changes[mode_count++].arg = mask; |
769 |
} |
770 |
|
771 |
static void |
772 |
chm_invex(struct Client *client_p, struct Client *source_p, |
773 |
struct Channel *chptr, int parc, int *parn, |
774 |
char **parv, int *errors, int alev, int dir, char c, void *d, |
775 |
const char *chname) |
776 |
{ |
777 |
char *mask = NULL; |
778 |
|
779 |
/* if we have +I disabled, allow local clients to do anything but |
780 |
* set the mode. This prevents the abuse of +I when just a few |
781 |
* servers support it --fl |
782 |
*/ |
783 |
if (!ConfigChannel.use_invex && MyClient(source_p) && |
784 |
(dir == MODE_ADD) && (parc > *parn)) |
785 |
{ |
786 |
if (*errors & SM_ERR_RPL_I) |
787 |
return; |
788 |
|
789 |
*errors |= SM_ERR_RPL_I; |
790 |
return; |
791 |
} |
792 |
|
793 |
if (alev < CHACCESS_HALFOP) |
794 |
{ |
795 |
if (!(*errors & SM_ERR_NOOPS)) |
796 |
sendto_one(source_p, form_str(alev == CHACCESS_NOTONCHAN ? |
797 |
ERR_NOTONCHANNEL : ERR_CHANOPRIVSNEEDED), |
798 |
me.name, source_p->name, chname); |
799 |
*errors |= SM_ERR_NOOPS; |
800 |
return; |
801 |
} |
802 |
|
803 |
if (dir == MODE_QUERY || parc <= *parn) |
804 |
{ |
805 |
dlink_node *ptr = NULL; |
806 |
|
807 |
if (*errors & SM_ERR_RPL_I) |
808 |
return; |
809 |
|
810 |
*errors |= SM_ERR_RPL_I; |
811 |
|
812 |
DLINK_FOREACH(ptr, chptr->invexlist.head) |
813 |
{ |
814 |
const struct Ban *banptr = ptr->data; |
815 |
sendto_one(client_p, form_str(RPL_INVITELIST), me.name, |
816 |
client_p->name, chname, |
817 |
banptr->name, banptr->username, banptr->host, |
818 |
banptr->who, banptr->when); |
819 |
} |
820 |
|
821 |
sendto_one(source_p, form_str(RPL_ENDOFINVITELIST), me.name, |
822 |
source_p->name, chname); |
823 |
return; |
824 |
} |
825 |
|
826 |
if (MyClient(source_p) && (++mode_limit > MAXMODEPARAMS)) |
827 |
return; |
828 |
|
829 |
mask = parv[(*parn)++]; |
830 |
|
831 |
if (IsServer(client_p)) |
832 |
if (strchr(mask, ' ')) |
833 |
return; |
834 |
|
835 |
switch (dir) |
836 |
{ |
837 |
case MODE_ADD: |
838 |
if (!add_id(source_p, chptr, mask, CHFL_INVEX)) |
839 |
return; |
840 |
break; |
841 |
case MODE_DEL: |
842 |
if (!del_id(chptr, mask, CHFL_INVEX)) |
843 |
return; |
844 |
break; |
845 |
default: |
846 |
assert(0); |
847 |
} |
848 |
|
849 |
mode_changes[mode_count].letter = c; |
850 |
mode_changes[mode_count].dir = dir; |
851 |
mode_changes[mode_count].caps = CAP_IE; |
852 |
mode_changes[mode_count].nocaps = 0; |
853 |
|
854 |
if (ConfigChannel.use_invex) |
855 |
mode_changes[mode_count].mems = ONLY_CHANOPS; |
856 |
else |
857 |
mode_changes[mode_count].mems = ONLY_SERVERS; |
858 |
|
859 |
mode_changes[mode_count].id = NULL; |
860 |
mode_changes[mode_count++].arg = mask; |
861 |
} |
862 |
|
863 |
/* |
864 |
* inputs - pointer to channel |
865 |
* output - none |
866 |
* side effects - clear ban cache |
867 |
*/ |
868 |
void |
869 |
clear_ban_cache(struct Channel *chptr) |
870 |
{ |
871 |
dlink_node *ptr = NULL; |
872 |
|
873 |
DLINK_FOREACH(ptr, chptr->locmembers.head) |
874 |
{ |
875 |
struct Membership *ms = ptr->data; |
876 |
ms->flags &= ~(CHFL_BAN_SILENCED|CHFL_BAN_CHECKED); |
877 |
} |
878 |
} |
879 |
|
880 |
static void |
881 |
chm_op(struct Client *client_p, struct Client *source_p, |
882 |
struct Channel *chptr, int parc, int *parn, |
883 |
char **parv, int *errors, int alev, int dir, char c, void *d, |
884 |
const char *chname) |
885 |
{ |
886 |
char *opnick; |
887 |
struct Client *targ_p; |
888 |
struct Membership *member; |
889 |
int caps = 0; |
890 |
|
891 |
if (alev < CHACCESS_CHANOP) |
892 |
{ |
893 |
if (!(*errors & SM_ERR_NOOPS)) |
894 |
sendto_one(source_p, form_str(alev == CHACCESS_NOTONCHAN ? |
895 |
ERR_NOTONCHANNEL : ERR_CHANOPRIVSNEEDED), |
896 |
me.name, source_p->name, chname); |
897 |
*errors |= SM_ERR_NOOPS; |
898 |
return; |
899 |
} |
900 |
|
901 |
if ((dir == MODE_QUERY) || (parc <= *parn)) |
902 |
return; |
903 |
|
904 |
opnick = parv[(*parn)++]; |
905 |
|
906 |
if ((targ_p = find_chasing(client_p, source_p, opnick, NULL)) == NULL) |
907 |
return; |
908 |
if (!IsClient(targ_p)) |
909 |
return; |
910 |
|
911 |
if ((member = find_channel_link(targ_p, chptr)) == NULL) |
912 |
{ |
913 |
if (!(*errors & SM_ERR_NOTONCHANNEL)) |
914 |
sendto_one(source_p, form_str(ERR_USERNOTINCHANNEL), |
915 |
me.name, source_p->name, opnick, chname); |
916 |
*errors |= SM_ERR_NOTONCHANNEL; |
917 |
return; |
918 |
} |
919 |
|
920 |
if (MyClient(source_p) && (++mode_limit > MAXMODEPARAMS)) |
921 |
return; |
922 |
|
923 |
/* no redundant mode changes */ |
924 |
if (dir == MODE_ADD && has_member_flags(member, CHFL_CHANOP)) |
925 |
return; |
926 |
if (dir == MODE_DEL && !has_member_flags(member, CHFL_CHANOP)) |
927 |
{ |
928 |
#ifdef HALFOPS |
929 |
if (has_member_flags(member, CHFL_HALFOP)) |
930 |
chm_hop(client_p, source_p, chptr, parc, parn, parv, errors, alev, |
931 |
dir, c, d, chname); |
932 |
#endif |
933 |
return; |
934 |
} |
935 |
|
936 |
#ifdef HALFOPS |
937 |
if (dir == MODE_ADD && has_member_flags(member, CHFL_HALFOP)) |
938 |
{ |
939 |
/* promoting from % to @ is visible only to CAP_HOPS servers */ |
940 |
mode_changes[mode_count].letter = 'h'; |
941 |
mode_changes[mode_count].dir = MODE_DEL; |
942 |
mode_changes[mode_count].caps = caps = CAP_HOPS; |
943 |
mode_changes[mode_count].nocaps = 0; |
944 |
mode_changes[mode_count].mems = ALL_MEMBERS; |
945 |
mode_changes[mode_count].id = NULL; |
946 |
mode_changes[mode_count].arg = targ_p->name; |
947 |
mode_changes[mode_count++].client = targ_p; |
948 |
} |
949 |
#endif |
950 |
|
951 |
mode_changes[mode_count].letter = 'o'; |
952 |
mode_changes[mode_count].dir = dir; |
953 |
mode_changes[mode_count].caps = caps; |
954 |
mode_changes[mode_count].nocaps = 0; |
955 |
mode_changes[mode_count].mems = ALL_MEMBERS; |
956 |
mode_changes[mode_count].id = targ_p->id; |
957 |
mode_changes[mode_count].arg = targ_p->name; |
958 |
mode_changes[mode_count++].client = targ_p; |
959 |
|
960 |
if (dir == MODE_ADD) |
961 |
{ |
962 |
AddMemberFlag(member, CHFL_CHANOP); |
963 |
DelMemberFlag(member, CHFL_DEOPPED | CHFL_HALFOP); |
964 |
} |
965 |
else |
966 |
DelMemberFlag(member, CHFL_CHANOP); |
967 |
} |
968 |
|
969 |
#ifdef HALFOPS |
970 |
static void |
971 |
chm_hop(struct Client *client_p, struct Client *source_p, |
972 |
struct Channel *chptr, int parc, int *parn, |
973 |
char **parv, int *errors, int alev, int dir, char c, void *d, |
974 |
const char *chname) |
975 |
{ |
976 |
char *opnick; |
977 |
struct Client *targ_p; |
978 |
struct Membership *member; |
979 |
|
980 |
/* *sigh* - dont allow halfops to set +/-h, they could fully control a |
981 |
* channel if there were no ops - it doesnt solve anything.. MODE_PRIVATE |
982 |
* when used with MODE_SECRET is paranoid - cant use +p |
983 |
* |
984 |
* it needs to be optional per channel - but not via +p, that or remove |
985 |
* paranoid.. -- fl_ |
986 |
* |
987 |
* +p means paranoid, it is useless for anything else on modern IRC, as |
988 |
* list isn't really usable. If you want to have a private channel these |
989 |
* days, you set it +s. Halfops can no longer remove simple modes when |
990 |
* +p is set (although they can set +p) so it is safe to use this to |
991 |
* control whether they can (de)halfop... |
992 |
*/ |
993 |
if (alev < |
994 |
((chptr->mode.mode & MODE_PRIVATE) ? CHACCESS_CHANOP : CHACCESS_HALFOP)) |
995 |
{ |
996 |
if (!(*errors & SM_ERR_NOOPS)) |
997 |
sendto_one(source_p, form_str(alev == CHACCESS_NOTONCHAN ? |
998 |
ERR_NOTONCHANNEL : ERR_CHANOPRIVSNEEDED), |
999 |
me.name, source_p->name, chname); |
1000 |
*errors |= SM_ERR_NOOPS; |
1001 |
return; |
1002 |
} |
1003 |
|
1004 |
if ((dir == MODE_QUERY) || (parc <= *parn)) |
1005 |
return; |
1006 |
|
1007 |
opnick = parv[(*parn)++]; |
1008 |
|
1009 |
if ((targ_p = find_chasing(client_p, source_p, opnick, NULL)) == NULL) |
1010 |
return; |
1011 |
if (!IsClient(targ_p)) |
1012 |
return; |
1013 |
|
1014 |
if ((member = find_channel_link(targ_p, chptr)) == NULL) |
1015 |
{ |
1016 |
if (!(*errors & SM_ERR_NOTONCHANNEL)) |
1017 |
sendto_one(source_p, form_str(ERR_USERNOTINCHANNEL), |
1018 |
me.name, source_p->name, opnick, chname); |
1019 |
*errors |= SM_ERR_NOTONCHANNEL; |
1020 |
return; |
1021 |
} |
1022 |
|
1023 |
if (MyClient(source_p) && (++mode_limit > MAXMODEPARAMS)) |
1024 |
return; |
1025 |
|
1026 |
/* no redundant mode changes */ |
1027 |
if (dir == MODE_ADD && has_member_flags(member, CHFL_HALFOP | CHFL_CHANOP)) |
1028 |
return; |
1029 |
if (dir == MODE_DEL && !has_member_flags(member, CHFL_HALFOP)) |
1030 |
return; |
1031 |
|
1032 |
mode_changes[mode_count].letter = 'h'; |
1033 |
mode_changes[mode_count].dir = dir; |
1034 |
mode_changes[mode_count].caps = CAP_HOPS; |
1035 |
mode_changes[mode_count].nocaps = 0; |
1036 |
mode_changes[mode_count].mems = ALL_MEMBERS; |
1037 |
mode_changes[mode_count].id = targ_p->id; |
1038 |
mode_changes[mode_count].arg = targ_p->name; |
1039 |
mode_changes[mode_count++].client = targ_p; |
1040 |
|
1041 |
mode_changes[mode_count].letter = 'o'; |
1042 |
mode_changes[mode_count].dir = dir; |
1043 |
mode_changes[mode_count].caps = 0; |
1044 |
mode_changes[mode_count].nocaps = CAP_HOPS; |
1045 |
mode_changes[mode_count].mems = ONLY_SERVERS; |
1046 |
mode_changes[mode_count].id = targ_p->id; |
1047 |
mode_changes[mode_count].arg = targ_p->name; |
1048 |
mode_changes[mode_count++].client = targ_p; |
1049 |
|
1050 |
if (dir == MODE_ADD) |
1051 |
{ |
1052 |
AddMemberFlag(member, CHFL_HALFOP); |
1053 |
DelMemberFlag(member, CHFL_DEOPPED); |
1054 |
} |
1055 |
else |
1056 |
DelMemberFlag(member, CHFL_HALFOP); |
1057 |
} |
1058 |
#endif |
1059 |
|
1060 |
static void |
1061 |
chm_voice(struct Client *client_p, struct Client *source_p, |
1062 |
struct Channel *chptr, int parc, int *parn, |
1063 |
char **parv, int *errors, int alev, int dir, char c, void *d, |
1064 |
const char *chname) |
1065 |
{ |
1066 |
char *opnick; |
1067 |
struct Client *targ_p; |
1068 |
struct Membership *member; |
1069 |
|
1070 |
if (alev < CHACCESS_HALFOP) |
1071 |
{ |
1072 |
if (!(*errors & SM_ERR_NOOPS)) |
1073 |
sendto_one(source_p, form_str(alev == CHACCESS_NOTONCHAN ? |
1074 |
ERR_NOTONCHANNEL : ERR_CHANOPRIVSNEEDED), |
1075 |
me.name, source_p->name, chname); |
1076 |
*errors |= SM_ERR_NOOPS; |
1077 |
return; |
1078 |
} |
1079 |
|
1080 |
if ((dir == MODE_QUERY) || parc <= *parn) |
1081 |
return; |
1082 |
|
1083 |
opnick = parv[(*parn)++]; |
1084 |
|
1085 |
if ((targ_p = find_chasing(client_p, source_p, opnick, NULL)) == NULL) |
1086 |
return; |
1087 |
if (!IsClient(targ_p)) |
1088 |
return; |
1089 |
|
1090 |
if ((member = find_channel_link(targ_p, chptr)) == NULL) |
1091 |
{ |
1092 |
if (!(*errors & SM_ERR_NOTONCHANNEL)) |
1093 |
sendto_one(source_p, form_str(ERR_USERNOTINCHANNEL), |
1094 |
me.name, source_p->name, opnick, chname); |
1095 |
*errors |= SM_ERR_NOTONCHANNEL; |
1096 |
return; |
1097 |
} |
1098 |
|
1099 |
if (MyClient(source_p) && (++mode_limit > MAXMODEPARAMS)) |
1100 |
return; |
1101 |
|
1102 |
/* no redundant mode changes */ |
1103 |
if (dir == MODE_ADD && has_member_flags(member, CHFL_VOICE)) |
1104 |
return; |
1105 |
if (dir == MODE_DEL && !has_member_flags(member, CHFL_VOICE)) |
1106 |
return; |
1107 |
|
1108 |
mode_changes[mode_count].letter = 'v'; |
1109 |
mode_changes[mode_count].dir = dir; |
1110 |
mode_changes[mode_count].caps = 0; |
1111 |
mode_changes[mode_count].nocaps = 0; |
1112 |
mode_changes[mode_count].mems = ALL_MEMBERS; |
1113 |
mode_changes[mode_count].id = targ_p->id; |
1114 |
mode_changes[mode_count].arg = targ_p->name; |
1115 |
mode_changes[mode_count++].client = targ_p; |
1116 |
|
1117 |
if (dir == MODE_ADD) |
1118 |
AddMemberFlag(member, CHFL_VOICE); |
1119 |
else |
1120 |
DelMemberFlag(member, CHFL_VOICE); |
1121 |
} |
1122 |
|
1123 |
static void |
1124 |
chm_limit(struct Client *client_p, struct Client *source_p, |
1125 |
struct Channel *chptr, int parc, int *parn, |
1126 |
char **parv, int *errors, int alev, int dir, char c, void *d, |
1127 |
const char *chname) |
1128 |
{ |
1129 |
int i, limit; |
1130 |
char *lstr; |
1131 |
|
1132 |
if (alev < CHACCESS_HALFOP) |
1133 |
{ |
1134 |
if (!(*errors & SM_ERR_NOOPS)) |
1135 |
sendto_one(source_p, form_str(alev == CHACCESS_NOTONCHAN ? |
1136 |
ERR_NOTONCHANNEL : ERR_CHANOPRIVSNEEDED), |
1137 |
me.name, source_p->name, chname); |
1138 |
*errors |= SM_ERR_NOOPS; |
1139 |
return; |
1140 |
} |
1141 |
|
1142 |
if (dir == MODE_QUERY) |
1143 |
return; |
1144 |
|
1145 |
if ((dir == MODE_ADD) && parc > *parn) |
1146 |
{ |
1147 |
lstr = parv[(*parn)++]; |
1148 |
|
1149 |
if ((limit = atoi(lstr)) <= 0) |
1150 |
return; |
1151 |
|
1152 |
ircsprintf(lstr, "%d", limit); |
1153 |
|
1154 |
/* if somebody sets MODE #channel +ll 1 2, accept latter --fl */ |
1155 |
for (i = 0; i < mode_count; i++) |
1156 |
{ |
1157 |
if (mode_changes[i].letter == c && mode_changes[i].dir == MODE_ADD) |
1158 |
mode_changes[i].letter = 0; |
1159 |
} |
1160 |
|
1161 |
mode_changes[mode_count].letter = c; |
1162 |
mode_changes[mode_count].dir = MODE_ADD; |
1163 |
mode_changes[mode_count].caps = 0; |
1164 |
mode_changes[mode_count].nocaps = 0; |
1165 |
mode_changes[mode_count].mems = ALL_MEMBERS; |
1166 |
mode_changes[mode_count].id = NULL; |
1167 |
mode_changes[mode_count++].arg = lstr; |
1168 |
|
1169 |
chptr->mode.limit = limit; |
1170 |
} |
1171 |
else if (dir == MODE_DEL) |
1172 |
{ |
1173 |
if (!chptr->mode.limit) |
1174 |
return; |
1175 |
|
1176 |
chptr->mode.limit = 0; |
1177 |
|
1178 |
mode_changes[mode_count].letter = c; |
1179 |
mode_changes[mode_count].dir = MODE_DEL; |
1180 |
mode_changes[mode_count].caps = 0; |
1181 |
mode_changes[mode_count].nocaps = 0; |
1182 |
mode_changes[mode_count].mems = ALL_MEMBERS; |
1183 |
mode_changes[mode_count].id = NULL; |
1184 |
mode_changes[mode_count++].arg = NULL; |
1185 |
} |
1186 |
} |
1187 |
|
1188 |
static void |
1189 |
chm_key(struct Client *client_p, struct Client *source_p, |
1190 |
struct Channel *chptr, int parc, int *parn, |
1191 |
char **parv, int *errors, int alev, int dir, char c, void *d, |
1192 |
const char *chname) |
1193 |
{ |
1194 |
int i; |
1195 |
char *key; |
1196 |
|
1197 |
if (alev < CHACCESS_HALFOP) |
1198 |
{ |
1199 |
if (!(*errors & SM_ERR_NOOPS)) |
1200 |
sendto_one(source_p, form_str(alev == CHACCESS_NOTONCHAN ? |
1201 |
ERR_NOTONCHANNEL : ERR_CHANOPRIVSNEEDED), |
1202 |
me.name, source_p->name, chname); |
1203 |
*errors |= SM_ERR_NOOPS; |
1204 |
return; |
1205 |
} |
1206 |
|
1207 |
if (dir == MODE_QUERY) |
1208 |
return; |
1209 |
|
1210 |
if ((dir == MODE_ADD) && parc > *parn) |
1211 |
{ |
1212 |
key = parv[(*parn)++]; |
1213 |
|
1214 |
if (MyClient(source_p)) |
1215 |
fix_key(key); |
1216 |
else |
1217 |
fix_key_old(key); |
1218 |
|
1219 |
if (*key == '\0') |
1220 |
return; |
1221 |
|
1222 |
assert(key[0] != ' '); |
1223 |
strlcpy(chptr->mode.key, key, sizeof(chptr->mode.key)); |
1224 |
|
1225 |
/* if somebody does MODE #channel +kk a b, accept latter --fl */ |
1226 |
for (i = 0; i < mode_count; i++) |
1227 |
{ |
1228 |
if (mode_changes[i].letter == c && mode_changes[i].dir == MODE_ADD) |
1229 |
mode_changes[i].letter = 0; |
1230 |
} |
1231 |
|
1232 |
mode_changes[mode_count].letter = c; |
1233 |
mode_changes[mode_count].dir = MODE_ADD; |
1234 |
mode_changes[mode_count].caps = 0; |
1235 |
mode_changes[mode_count].nocaps = 0; |
1236 |
mode_changes[mode_count].mems = ALL_MEMBERS; |
1237 |
mode_changes[mode_count].id = NULL; |
1238 |
mode_changes[mode_count++].arg = chptr->mode.key; |
1239 |
} |
1240 |
else if (dir == MODE_DEL) |
1241 |
{ |
1242 |
if (parc > *parn) |
1243 |
(*parn)++; |
1244 |
|
1245 |
if (chptr->mode.key[0] == '\0') |
1246 |
return; |
1247 |
|
1248 |
chptr->mode.key[0] = '\0'; |
1249 |
|
1250 |
mode_changes[mode_count].letter = c; |
1251 |
mode_changes[mode_count].dir = MODE_DEL; |
1252 |
mode_changes[mode_count].caps = 0; |
1253 |
mode_changes[mode_count].nocaps = 0; |
1254 |
mode_changes[mode_count].mems = ALL_MEMBERS; |
1255 |
mode_changes[mode_count].id = NULL; |
1256 |
mode_changes[mode_count++].arg = "*"; |
1257 |
} |
1258 |
} |
1259 |
|
1260 |
struct ChannelMode |
1261 |
{ |
1262 |
void (*func) (struct Client *client_p, struct Client *source_p, |
1263 |
struct Channel *chptr, int parc, int *parn, char **parv, |
1264 |
int *errors, int alev, int dir, char c, void *d, |
1265 |
const char *chname); |
1266 |
void *d; |
1267 |
}; |
1268 |
|
1269 |
/* *INDENT-OFF* */ |
1270 |
static struct ChannelMode ModeTable[255] = |
1271 |
{ |
1272 |
{chm_nosuch, NULL}, |
1273 |
{chm_nosuch, NULL}, /* A */ |
1274 |
{chm_nosuch, NULL}, /* B */ |
1275 |
{chm_nosuch, NULL}, /* C */ |
1276 |
{chm_nosuch, NULL}, /* D */ |
1277 |
{chm_nosuch, NULL}, /* E */ |
1278 |
{chm_nosuch, NULL}, /* F */ |
1279 |
{chm_nosuch, NULL}, /* G */ |
1280 |
{chm_nosuch, NULL}, /* H */ |
1281 |
{chm_invex, NULL}, /* I */ |
1282 |
{chm_nosuch, NULL}, /* J */ |
1283 |
{chm_nosuch, NULL}, /* K */ |
1284 |
{chm_nosuch, NULL}, /* L */ |
1285 |
{chm_nosuch, NULL}, /* M */ |
1286 |
{chm_nosuch, NULL}, /* N */ |
1287 |
{chm_nosuch, NULL}, /* O */ |
1288 |
{chm_nosuch, NULL}, /* P */ |
1289 |
{chm_nosuch, NULL}, /* Q */ |
1290 |
{chm_nosuch, NULL}, /* R */ |
1291 |
{chm_nosuch, NULL}, /* S */ |
1292 |
{chm_nosuch, NULL}, /* T */ |
1293 |
{chm_nosuch, NULL}, /* U */ |
1294 |
{chm_nosuch, NULL}, /* V */ |
1295 |
{chm_nosuch, NULL}, /* W */ |
1296 |
{chm_nosuch, NULL}, /* X */ |
1297 |
{chm_nosuch, NULL}, /* Y */ |
1298 |
{chm_nosuch, NULL}, /* Z */ |
1299 |
{chm_nosuch, NULL}, |
1300 |
{chm_nosuch, NULL}, |
1301 |
{chm_nosuch, NULL}, |
1302 |
{chm_nosuch, NULL}, |
1303 |
{chm_nosuch, NULL}, |
1304 |
{chm_nosuch, NULL}, |
1305 |
{chm_nosuch, NULL}, /* a */ |
1306 |
{chm_ban, NULL}, /* b */ |
1307 |
{chm_nosuch, NULL}, /* c */ |
1308 |
{chm_nosuch, NULL}, /* d */ |
1309 |
{chm_except, NULL}, /* e */ |
1310 |
{chm_nosuch, NULL}, /* f */ |
1311 |
{chm_nosuch, NULL}, /* g */ |
1312 |
#ifdef HALFOPS |
1313 |
{chm_hop, NULL}, /* h */ |
1314 |
#else |
1315 |
{chm_nosuch, NULL}, /* h */ |
1316 |
#endif |
1317 |
{chm_simple, (void *) MODE_INVITEONLY}, /* i */ |
1318 |
{chm_nosuch, NULL}, /* j */ |
1319 |
{chm_key, NULL}, /* k */ |
1320 |
{chm_limit, NULL}, /* l */ |
1321 |
{chm_simple, (void *) MODE_MODERATED}, /* m */ |
1322 |
{chm_simple, (void *) MODE_NOPRIVMSGS}, /* n */ |
1323 |
{chm_op, NULL}, /* o */ |
1324 |
{chm_simple, (void *) MODE_PRIVATE}, /* p */ |
1325 |
{chm_nosuch, NULL}, /* q */ |
1326 |
{chm_nosuch, NULL}, /* r */ |
1327 |
{chm_simple, (void *) MODE_SECRET}, /* s */ |
1328 |
{chm_simple, (void *) MODE_TOPICLIMIT}, /* t */ |
1329 |
{chm_nosuch, NULL}, /* u */ |
1330 |
{chm_voice, NULL}, /* v */ |
1331 |
{chm_nosuch, NULL}, /* w */ |
1332 |
{chm_nosuch, NULL}, /* x */ |
1333 |
{chm_nosuch, NULL}, /* y */ |
1334 |
{chm_nosuch, NULL}, /* z */ |
1335 |
}; |
1336 |
/* *INDENT-ON* */ |
1337 |
|
1338 |
/* get_channel_access() |
1339 |
* |
1340 |
* inputs - pointer to Client struct |
1341 |
* - pointer to Membership struct |
1342 |
* output - CHACCESS_CHANOP if we should let them have |
1343 |
* chanop level access, 0 for peon level access. |
1344 |
* side effects - NONE |
1345 |
*/ |
1346 |
static int |
1347 |
get_channel_access(struct Client *source_p, struct Membership *member) |
1348 |
{ |
1349 |
/* Let hacked servers in for now... */ |
1350 |
if (!MyClient(source_p)) |
1351 |
return CHACCESS_CHANOP; |
1352 |
|
1353 |
if (member == NULL) |
1354 |
return CHACCESS_NOTONCHAN; |
1355 |
|
1356 |
/* just to be sure.. */ |
1357 |
assert(source_p == member->client_p); |
1358 |
|
1359 |
if (has_member_flags(member, CHFL_CHANOP)) |
1360 |
return CHACCESS_CHANOP; |
1361 |
|
1362 |
#ifdef HALFOPS |
1363 |
if (has_member_flags(member, CHFL_HALFOP)) |
1364 |
return CHACCESS_HALFOP; |
1365 |
#endif |
1366 |
|
1367 |
return CHACCESS_PEON; |
1368 |
} |
1369 |
|
1370 |
/* void send_cap_mode_changes(struct Client *client_p, |
1371 |
* struct Client *source_p, |
1372 |
* struct Channel *chptr, int cap, int nocap) |
1373 |
* Input: The client sending(client_p), the source client(source_p), |
1374 |
* the channel to send mode changes for(chptr) |
1375 |
* Output: None. |
1376 |
* Side-effects: Sends the appropriate mode changes to capable servers. |
1377 |
* |
1378 |
* send_cap_mode_changes() will loop the server list itself, because |
1379 |
* at this point in time we have 4 capabs for channels, CAP_IE, CAP_EX, |
1380 |
* and a server could support any number of these.. |
1381 |
* so we make the modebufs per server, tailoring them to each servers |
1382 |
* specific demand. Its not very pretty, but its one of the few realistic |
1383 |
* ways to handle having this many capabs for channel modes.. --fl_ |
1384 |
* |
1385 |
* Reverted back to my original design, except that we now keep a count |
1386 |
* of the number of servers which each combination as an optimisation, so |
1387 |
* the capabs combinations which are not needed are not worked out. -A1kmm |
1388 |
*/ |
1389 |
/* rewritten to ensure parabuf < MODEBUFLEN -db */ |
1390 |
|
1391 |
static void |
1392 |
send_cap_mode_changes(struct Client *client_p, struct Client *source_p, |
1393 |
struct Channel *chptr, int cap, int nocap) |
1394 |
{ |
1395 |
int i, mbl, pbl, arglen, nc, mc; |
1396 |
int len; |
1397 |
const char *arg = NULL; |
1398 |
char *parptr; |
1399 |
int dir = MODE_QUERY; |
1400 |
|
1401 |
mc = 0; |
1402 |
nc = 0; |
1403 |
pbl = 0; |
1404 |
|
1405 |
parabuf[0] = '\0'; |
1406 |
parptr = parabuf; |
1407 |
|
1408 |
if ((cap & CAP_TS6) && source_p->id[0] != '\0') |
1409 |
mbl = ircsprintf(modebuf, ":%s TMODE %lu %s ", source_p->id, |
1410 |
(unsigned long)chptr->channelts, chptr->chname); |
1411 |
else |
1412 |
mbl = ircsprintf(modebuf, ":%s MODE %s ", source_p->name, |
1413 |
chptr->chname); |
1414 |
|
1415 |
/* loop the list of - modes we have */ |
1416 |
for (i = 0; i < mode_count; i++) |
1417 |
{ |
1418 |
/* if they dont support the cap we need, or they do support a cap they |
1419 |
* cant have, then dont add it to the modebuf.. that way they wont see |
1420 |
* the mode |
1421 |
*/ |
1422 |
if ((mode_changes[i].letter == 0) || |
1423 |
((cap & mode_changes[i].caps) != mode_changes[i].caps) |
1424 |
|| ((nocap & mode_changes[i].nocaps) != mode_changes[i].nocaps)) |
1425 |
continue; |
1426 |
|
1427 |
arg = ""; |
1428 |
|
1429 |
if ((cap & CAP_TS6) && mode_changes[i].id) |
1430 |
arg = mode_changes[i].id; |
1431 |
if (*arg == '\0') |
1432 |
arg = mode_changes[i].arg; |
1433 |
|
1434 |
/* if we're creeping past the buf size, we need to send it and make |
1435 |
* another line for the other modes |
1436 |
* XXX - this could give away server topology with uids being |
1437 |
* different lengths, but not much we can do, except possibly break |
1438 |
* them as if they were the longest of the nick or uid at all times, |
1439 |
* which even then won't work as we don't always know the uid -A1kmm. |
1440 |
*/ |
1441 |
if (arg != NULL) |
1442 |
arglen = strlen(arg); |
1443 |
else |
1444 |
arglen = 0; |
1445 |
|
1446 |
if ((mc == MAXMODEPARAMS) || |
1447 |
((arglen + mbl + pbl + 2) > IRCD_BUFSIZE) || |
1448 |
(pbl + arglen + BAN_FUDGE) >= MODEBUFLEN) |
1449 |
{ |
1450 |
if (nc != 0) |
1451 |
sendto_server(client_p, source_p, chptr, cap, nocap, |
1452 |
LL_ICHAN | LL_ICLIENT, "%s %s", |
1453 |
modebuf, parabuf); |
1454 |
nc = 0; |
1455 |
mc = 0; |
1456 |
|
1457 |
if ((cap & CAP_TS6) && source_p->id[0] != '\0') |
1458 |
mbl = ircsprintf(modebuf, ":%s MODE %s ", source_p->id, |
1459 |
chptr->chname); |
1460 |
else |
1461 |
mbl = ircsprintf(modebuf, ":%s MODE %s ", source_p->name, |
1462 |
chptr->chname); |
1463 |
|
1464 |
pbl = 0; |
1465 |
parabuf[0] = '\0'; |
1466 |
parptr = parabuf; |
1467 |
dir = MODE_QUERY; |
1468 |
} |
1469 |
|
1470 |
if (dir != mode_changes[i].dir) |
1471 |
{ |
1472 |
modebuf[mbl++] = (mode_changes[i].dir == MODE_ADD) ? '+' : '-'; |
1473 |
dir = mode_changes[i].dir; |
1474 |
} |
1475 |
|
1476 |
modebuf[mbl++] = mode_changes[i].letter; |
1477 |
modebuf[mbl] = '\0'; |
1478 |
nc++; |
1479 |
|
1480 |
if (arg != NULL) |
1481 |
{ |
1482 |
len = ircsprintf(parptr, "%s ", arg); |
1483 |
pbl += len; |
1484 |
parptr += len; |
1485 |
mc++; |
1486 |
} |
1487 |
} |
1488 |
|
1489 |
if (pbl && parabuf[pbl - 1] == ' ') |
1490 |
parabuf[pbl - 1] = 0; |
1491 |
|
1492 |
if (nc != 0) |
1493 |
sendto_server(client_p, source_p, chptr, cap, nocap, |
1494 |
LL_ICLIENT, "%s %s", modebuf, parabuf); |
1495 |
} |
1496 |
|
1497 |
/* void send_mode_changes(struct Client *client_p, |
1498 |
* struct Client *source_p, |
1499 |
* struct Channel *chptr) |
1500 |
* Input: The client sending(client_p), the source client(source_p), |
1501 |
* the channel to send mode changes for(chptr), |
1502 |
* mode change globals. |
1503 |
* Output: None. |
1504 |
* Side-effects: Sends the appropriate mode changes to other clients |
1505 |
* and propagates to servers. |
1506 |
*/ |
1507 |
/* ensure parabuf < MODEBUFLEN -db */ |
1508 |
static void |
1509 |
send_mode_changes(struct Client *client_p, struct Client *source_p, |
1510 |
struct Channel *chptr, char *chname) |
1511 |
{ |
1512 |
int i, mbl, pbl, arglen, nc, mc; |
1513 |
int len; |
1514 |
const char *arg = NULL; |
1515 |
char *parptr; |
1516 |
int dir = MODE_QUERY; |
1517 |
|
1518 |
/* bail out if we have nothing to do... */ |
1519 |
if (!mode_count) |
1520 |
return; |
1521 |
|
1522 |
if (IsServer(source_p)) |
1523 |
mbl = ircsprintf(modebuf, ":%s MODE %s ", (IsHidden(source_p) || |
1524 |
ConfigServerHide.hide_servers) ? |
1525 |
me.name : source_p->name, chname); |
1526 |
else |
1527 |
mbl = ircsprintf(modebuf, ":%s!%s@%s MODE %s ", source_p->name, |
1528 |
source_p->username, source_p->host, chname); |
1529 |
|
1530 |
mc = 0; |
1531 |
nc = 0; |
1532 |
pbl = 0; |
1533 |
|
1534 |
parabuf[0] = '\0'; |
1535 |
parptr = parabuf; |
1536 |
|
1537 |
for (i = 0; i < mode_count; i++) |
1538 |
{ |
1539 |
if (mode_changes[i].letter == 0 || |
1540 |
mode_changes[i].mems == NON_CHANOPS || |
1541 |
mode_changes[i].mems == ONLY_SERVERS) |
1542 |
continue; |
1543 |
|
1544 |
arg = mode_changes[i].arg; |
1545 |
if (arg != NULL) |
1546 |
arglen = strlen(arg); |
1547 |
else |
1548 |
arglen = 0; |
1549 |
|
1550 |
if ((mc == MAXMODEPARAMS) || |
1551 |
((arglen + mbl + pbl + 2) > IRCD_BUFSIZE) || |
1552 |
((arglen + pbl + BAN_FUDGE) >= MODEBUFLEN)) |
1553 |
{ |
1554 |
if (mbl && modebuf[mbl - 1] == '-') |
1555 |
modebuf[mbl - 1] = '\0'; |
1556 |
|
1557 |
if (nc != 0) |
1558 |
sendto_channel_local(ALL_MEMBERS, NO, chptr, "%s %s", modebuf, parabuf); |
1559 |
|
1560 |
nc = 0; |
1561 |
mc = 0; |
1562 |
|
1563 |
if (IsServer(source_p)) |
1564 |
mbl = ircsprintf(modebuf, ":%s MODE %s ", me.name, chname); |
1565 |
else |
1566 |
mbl = ircsprintf(modebuf, ":%s!%s@%s MODE %s ", source_p->name, |
1567 |
source_p->username, source_p->host, chname); |
1568 |
|
1569 |
pbl = 0; |
1570 |
parabuf[0] = '\0'; |
1571 |
parptr = parabuf; |
1572 |
dir = MODE_QUERY; |
1573 |
} |
1574 |
|
1575 |
if (dir != mode_changes[i].dir) |
1576 |
{ |
1577 |
modebuf[mbl++] = (mode_changes[i].dir == MODE_ADD) ? '+' : '-'; |
1578 |
dir = mode_changes[i].dir; |
1579 |
} |
1580 |
|
1581 |
modebuf[mbl++] = mode_changes[i].letter; |
1582 |
modebuf[mbl] = '\0'; |
1583 |
nc++; |
1584 |
|
1585 |
if (arg != NULL) |
1586 |
{ |
1587 |
len = ircsprintf(parptr, "%s ", arg); |
1588 |
pbl += len; |
1589 |
parptr += len; |
1590 |
mc++; |
1591 |
} |
1592 |
} |
1593 |
|
1594 |
if (pbl && parabuf[pbl - 1] == ' ') |
1595 |
parabuf[pbl - 1] = 0; |
1596 |
|
1597 |
if (nc != 0) |
1598 |
sendto_channel_local(ALL_MEMBERS, NO, chptr, "%s %s", modebuf, parabuf); |
1599 |
|
1600 |
nc = 0; |
1601 |
mc = 0; |
1602 |
|
1603 |
/* Now send to servers... */ |
1604 |
for (i = 0; i < NCHCAP_COMBOS; i++) |
1605 |
if (chcap_combos[i].count != 0) |
1606 |
send_cap_mode_changes(client_p, source_p, chptr, |
1607 |
chcap_combos[i].cap_yes, |
1608 |
chcap_combos[i].cap_no); |
1609 |
} |
1610 |
|
1611 |
/* void set_channel_mode(struct Client *client_p, struct Client *source_p, |
1612 |
* struct Channel *chptr, int parc, char **parv, |
1613 |
* char *chname) |
1614 |
* Input: The client we received this from, the client this originated |
1615 |
* from, the channel, the parameter count starting at the modes, |
1616 |
* the parameters, the channel name. |
1617 |
* Output: None. |
1618 |
* Side-effects: Changes the channel membership and modes appropriately, |
1619 |
* sends the appropriate MODE messages to the appropriate |
1620 |
* clients. |
1621 |
*/ |
1622 |
void |
1623 |
set_channel_mode(struct Client *client_p, struct Client *source_p, struct Channel *chptr, |
1624 |
struct Membership *member, int parc, char *parv[], char *chname) |
1625 |
{ |
1626 |
int dir = MODE_ADD; |
1627 |
int parn = 1; |
1628 |
int alevel, errors = 0; |
1629 |
char *ml = parv[0], c; |
1630 |
int table_position; |
1631 |
|
1632 |
mode_count = 0; |
1633 |
mode_limit = 0; |
1634 |
simple_modes_mask = 0; |
1635 |
|
1636 |
alevel = get_channel_access(source_p, member); |
1637 |
|
1638 |
for (; (c = *ml) != '\0'; ml++) |
1639 |
{ |
1640 |
#if 0 |
1641 |
if(mode_count > 20) |
1642 |
break; |
1643 |
#endif |
1644 |
switch (c) |
1645 |
{ |
1646 |
case '+': |
1647 |
dir = MODE_ADD; |
1648 |
break; |
1649 |
case '-': |
1650 |
dir = MODE_DEL; |
1651 |
break; |
1652 |
case '=': |
1653 |
dir = MODE_QUERY; |
1654 |
break; |
1655 |
default: |
1656 |
if (c < 'A' || c > 'z') |
1657 |
table_position = 0; |
1658 |
else |
1659 |
table_position = c - 'A' + 1; |
1660 |
ModeTable[table_position].func(client_p, source_p, chptr, |
1661 |
parc, &parn, |
1662 |
parv, &errors, alevel, dir, c, |
1663 |
ModeTable[table_position].d, |
1664 |
chname); |
1665 |
break; |
1666 |
} |
1667 |
} |
1668 |
|
1669 |
send_mode_changes(client_p, source_p, chptr, chname); |
1670 |
} |