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/* |
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* ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd). |
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* m_who.c: Shows who is on a channel. |
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* |
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* Copyright (C) 2002 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" |
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#include "list.h" |
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#include "client.h" |
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#include "channel.h" |
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#include "channel_mode.h" |
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#include "hash.h" |
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#include "ircd.h" |
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#include "numeric.h" |
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#include "s_serv.h" |
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#include "send.h" |
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#include "irc_string.h" |
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#include "conf.h" |
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#include "parse.h" |
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#include "modules.h" |
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|
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|
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/* do_who() |
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* |
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* inputs - pointer to client requesting who |
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* - pointer to client to do who on |
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* - The reported name |
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* - channel flags |
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* output - NONE |
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* side effects - do a who on given person |
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*/ |
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static void |
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do_who(struct Client *source_p, struct Client *target_p, |
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const char *chname, const char *op_flags) |
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{ |
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char status[7]; /* G*@%+\0 */ |
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|
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if (HasUMode(source_p, UMODE_OPER)) |
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snprintf(status, sizeof(status), "%c%s%s", target_p->away[0] ? 'G' : 'H', |
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HasUMode(target_p, UMODE_OPER) ? "*" : "", op_flags); |
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else |
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snprintf(status, sizeof(status), "%c%s%s", target_p->away[0] ? 'G' : 'H', |
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HasUMode(target_p, UMODE_OPER) && |
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!HasUMode(target_p, UMODE_HIDDEN) ? "*" : "", op_flags); |
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|
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if (ConfigServerHide.hide_servers) |
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sendto_one(source_p, form_str(RPL_WHOREPLY), me.name, source_p->name, |
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(chname) ? (chname) : "*", |
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target_p->username, target_p->host, |
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HasUMode(source_p, UMODE_OPER) ? target_p->servptr->name : "*", |
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target_p->name, status, 0, target_p->info); |
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else |
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sendto_one(source_p, form_str(RPL_WHOREPLY), me.name, source_p->name, |
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(chname) ? (chname) : "*", target_p->username, |
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target_p->host, target_p->servptr->name, target_p->name, |
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status, target_p->hopcount, target_p->info); |
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} |
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|
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/* who_common_channel |
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* inputs - pointer to client requesting who |
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* - pointer to channel member chain. |
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* - char * mask to match |
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* - int if oper on a server or not |
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* - pointer to int maxmatches |
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* output - NONE |
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* side effects - lists matching clients on specified channel, |
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* marks matched clients. |
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* |
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*/ |
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static void |
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who_common_channel(struct Client *source_p, struct Channel *chptr, |
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char *mask, int server_oper, int *maxmatches) |
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{ |
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dlink_node *ptr = NULL; |
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|
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DLINK_FOREACH(ptr, chptr->members.head) |
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{ |
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struct Client *target_p = ((struct Membership *)ptr->data)->client_p; |
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|
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if (!HasUMode(target_p, UMODE_INVISIBLE) || HasFlag(target_p, FLAGS_MARK)) |
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continue; |
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|
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if (server_oper) |
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if (!HasUMode(target_p, UMODE_OPER) || |
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(HasUMode(target_p, UMODE_HIDDEN) && !HasUMode(source_p, UMODE_OPER))) |
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continue; |
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|
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AddFlag(target_p, FLAGS_MARK); |
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|
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assert(target_p->servptr != NULL); |
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|
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if ((mask == NULL) || |
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!match(mask, target_p->name) || !match(mask, target_p->username) || |
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!match(mask, target_p->host) || |
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((!ConfigServerHide.hide_servers || HasUMode(source_p, UMODE_OPER)) && |
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!match(mask, target_p->servptr->name)) || |
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!match(mask, target_p->info)) |
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{ |
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do_who(source_p, target_p, NULL, ""); |
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|
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if (*maxmatches > 0) |
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{ |
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if (--(*maxmatches) == 0) |
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return; |
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} |
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} |
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} |
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} |
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|
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/* who_global() |
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* |
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* inputs - pointer to client requesting who |
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* - char * mask to match |
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* - int if oper on a server or not |
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* output - NONE |
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* side effects - do a global scan of all clients looking for match |
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* this is slightly expensive on EFnet ... |
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*/ |
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static void |
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who_global(struct Client *source_p, char *mask, int server_oper) |
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{ |
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struct Channel *chptr; |
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struct Client *target_p; |
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dlink_node *lp = NULL, *gcptr = NULL; |
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int maxmatches = 500; |
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static time_t last_used = 0; |
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|
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if (!HasUMode(source_p, UMODE_OPER)) |
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{ |
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if ((last_used + ConfigFileEntry.pace_wait) > CurrentTime) |
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{ |
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/* safe enough to give this on a local connect only */ |
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sendto_one(source_p, form_str(RPL_LOAD2HI), me.name, source_p->name); |
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return; |
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} |
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|
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last_used = CurrentTime; |
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} |
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|
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/* first, list all matching invisible clients on common channels */ |
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DLINK_FOREACH(lp, source_p->channel.head) |
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{ |
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chptr = ((struct Membership *)lp->data)->chptr; |
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who_common_channel(source_p, chptr, mask, server_oper, &maxmatches); |
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} |
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|
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/* second, list all matching visible clients */ |
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DLINK_FOREACH(gcptr, global_client_list.head) |
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{ |
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target_p = gcptr->data; |
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|
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if (!IsClient(target_p)) |
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continue; |
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|
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if (HasUMode(target_p, UMODE_INVISIBLE)) |
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{ |
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DelFlag(target_p, FLAGS_MARK); |
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continue; |
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} |
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|
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if (server_oper) |
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if (!HasUMode(target_p, UMODE_OPER) || |
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(HasUMode(target_p, UMODE_HIDDEN) && !HasUMode(source_p, UMODE_OPER))) |
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continue; |
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|
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assert(target_p->servptr != NULL); |
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|
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if (!mask || |
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!match(mask, target_p->name) || !match(mask, target_p->username) || |
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!match(mask, target_p->host) || !match(mask, target_p->servptr->name) || |
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!match(mask, target_p->info)) |
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{ |
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do_who(source_p, target_p, NULL, ""); |
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|
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if (maxmatches > 0) |
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{ |
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if (--maxmatches == 0) |
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return; |
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} |
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} |
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} |
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} |
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|
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/* do_who_on_channel() |
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* |
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* inputs - pointer to client requesting who |
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* - pointer to channel to do who on |
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* - The "real name" of this channel |
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* - int if source_p is a server oper or not |
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* - int if client is member or not |
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* - int server_op flag |
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* output - NONE |
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* side effects - do a who on given channel |
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*/ |
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static void |
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do_who_on_channel(struct Client *source_p, struct Channel *chptr, |
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const char *chname, int member, int server_oper) |
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{ |
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dlink_node *ptr = NULL; |
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|
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DLINK_FOREACH(ptr, chptr->members.head) |
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{ |
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struct Membership *ms = ptr->data; |
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struct Client *target_p = ms->client_p; |
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|
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if (member || !HasUMode(target_p, UMODE_INVISIBLE)) |
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{ |
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if (server_oper) |
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if (!HasUMode(target_p, UMODE_OPER) || |
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(HasUMode(target_p, UMODE_HIDDEN) && !HasUMode(source_p, UMODE_OPER))) |
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continue; |
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do_who(source_p, target_p, chname, get_member_status(ms, !!HasCap(source_p, CAP_MULTI_PREFIX))); |
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} |
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} |
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} |
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|
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/* |
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** m_who |
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** parv[0] = sender prefix |
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** parv[1] = nickname mask list |
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** parv[2] = additional selection flag, only 'o' for now. |
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*/ |
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static void |
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m_who(struct Client *client_p, struct Client *source_p, |
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int parc, char *parv[]) |
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{ |
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struct Client *target_p = NULL; |
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struct Channel *chptr = NULL; |
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char *mask = parv[1]; |
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dlink_node *lp = NULL; |
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int server_oper = parc > 2 ? (*parv[2] == 'o') : 0; /* Show OPERS only */ |
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|
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/* See if mask is there, collapse it or return if not there */ |
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if (EmptyString(mask)) |
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{ |
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who_global(source_p, mask, server_oper); |
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sendto_one(source_p, form_str(RPL_ENDOFWHO), |
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me.name, source_p->name, "*"); |
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return; |
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} |
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|
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/* mask isn't NULL at this point. repeat after me... -db */ |
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collapse(mask); |
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|
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/* '/who #some_channel' */ |
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if (IsChanPrefix(*mask)) |
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{ |
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/* List all users on a given channel */ |
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if ((chptr = hash_find_channel(mask)) != NULL) |
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{ |
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if (IsMember(source_p, chptr)) |
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do_who_on_channel(source_p, chptr, chptr->chname, 1, server_oper); |
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else if (!SecretChannel(chptr)) |
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do_who_on_channel(source_p, chptr, chptr->chname, 0, server_oper); |
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} |
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|
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sendto_one(source_p, form_str(RPL_ENDOFWHO), |
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me.name, source_p->name, mask); |
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return; |
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} |
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|
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/* '/who nick' */ |
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if (((target_p = hash_find_client(mask)) != NULL) && |
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IsClient(target_p) && (!server_oper || HasUMode(target_p, UMODE_OPER))) |
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{ |
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DLINK_FOREACH(lp, target_p->channel.head) |
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{ |
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chptr = ((struct Membership *) lp->data)->chptr; |
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if (PubChannel(chptr) || IsMember(source_p, chptr)) |
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break; |
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} |
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|
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if (lp != NULL) |
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do_who(source_p, target_p, chptr->chname, |
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get_member_status(lp->data, !!HasCap(source_p, CAP_MULTI_PREFIX))); |
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else |
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do_who(source_p, target_p, NULL, ""); |
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|
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sendto_one(source_p, form_str(RPL_ENDOFWHO), |
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me.name, source_p->name, mask); |
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return; |
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} |
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|
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/* '/who *' */ |
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if (!strcmp(mask, "*")) |
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{ |
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if ((lp = source_p->channel.head) != NULL) |
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{ |
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struct Channel *mychannel = ((struct Membership *)lp->data)->chptr; |
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do_who_on_channel(source_p, mychannel, mychannel->chname, 1, |
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server_oper); |
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} |
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|
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sendto_one(source_p, form_str(RPL_ENDOFWHO), |
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me.name, source_p->name, "*"); |
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return; |
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} |
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|
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/* '/who 0' */ |
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if (!strcmp(mask, "0")) |
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who_global(source_p, NULL, server_oper); |
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else |
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who_global(source_p, mask, server_oper); |
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|
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/* Wasn't a nick, wasn't a channel, wasn't a '*' so ... */ |
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sendto_one(source_p, form_str(RPL_ENDOFWHO), |
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me.name, source_p->name, mask); |
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} |
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|
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static struct Message who_msgtab = { |
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"WHO", 0, 0, 2, MAXPARA, MFLG_SLOW, 0, |
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{m_unregistered, m_who, m_ignore, m_ignore, m_who, m_ignore} |
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}; |
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|
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static void |
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module_init(void) |
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{ |
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mod_add_cmd(&who_msgtab); |
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} |
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|
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static void |
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module_exit(void) |
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{ |
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mod_del_cmd(&who_msgtab); |
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} |
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|
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struct module module_entry = { |
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.node = { NULL, NULL, NULL }, |
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.name = NULL, |
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.version = "$Revision$", |
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.handle = NULL, |
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.modinit = module_init, |
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.modexit = module_exit, |
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.flags = 0 |
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}; |
