| 1 |
adx |
30 |
/* |
| 2 |
michael |
2820 |
* ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd) |
| 3 |
adx |
30 |
* |
| 4 |
michael |
5346 |
* Copyright (c) 1997-2015 ircd-hybrid development team |
| 5 |
adx |
30 |
* |
| 6 |
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* This program is free software; you can redistribute it and/or modify |
| 7 |
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* it under the terms of the GNU General Public License as published by |
| 8 |
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* the Free Software Foundation; either version 2 of the License, or |
| 9 |
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* (at your option) any later version. |
| 10 |
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* |
| 11 |
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* This program is distributed in the hope that it will be useful, |
| 12 |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 |
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* GNU General Public License for more details. |
| 15 |
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* |
| 16 |
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* You should have received a copy of the GNU General Public License |
| 17 |
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* along with this program; if not, write to the Free Software |
| 18 |
michael |
4564 |
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 |
| 19 |
adx |
30 |
* USA |
| 20 |
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*/ |
| 21 |
michael |
1011 |
|
| 22 |
michael |
2820 |
/*! \file m_who.c |
| 23 |
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* \brief Includes required functions for processing the WHO command. |
| 24 |
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* \version $Id$ |
| 25 |
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*/ |
| 26 |
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|
| 27 |
adx |
30 |
#include "stdinc.h" |
| 28 |
michael |
1011 |
#include "list.h" |
| 29 |
adx |
30 |
#include "client.h" |
| 30 |
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#include "channel.h" |
| 31 |
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#include "channel_mode.h" |
| 32 |
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#include "hash.h" |
| 33 |
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#include "ircd.h" |
| 34 |
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#include "numeric.h" |
| 35 |
michael |
3347 |
#include "server.h" |
| 36 |
adx |
30 |
#include "send.h" |
| 37 |
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#include "irc_string.h" |
| 38 |
michael |
1309 |
#include "conf.h" |
| 39 |
adx |
30 |
#include "parse.h" |
| 40 |
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#include "modules.h" |
| 41 |
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| 42 |
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| 43 |
michael |
5640 |
#define WHO_MAX_REPLIES 500 |
| 44 |
michael |
4509 |
|
| 45 |
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|
| 46 |
michael |
2088 |
/* do_who() |
| 47 |
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* |
| 48 |
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* inputs - pointer to client requesting who |
| 49 |
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* - pointer to client to do who on |
| 50 |
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* - The reported name |
| 51 |
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* - channel flags |
| 52 |
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* output - NONE |
| 53 |
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* side effects - do a who on given person |
| 54 |
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*/ |
| 55 |
adx |
30 |
static void |
| 56 |
michael |
2088 |
do_who(struct Client *source_p, struct Client *target_p, |
| 57 |
michael |
4617 |
const char *name, const char *op_flags) |
| 58 |
adx |
30 |
{ |
| 59 |
michael |
3246 |
char status[IRCD_BUFSIZE] = ""; |
| 60 |
adx |
30 |
|
| 61 |
michael |
2088 |
if (HasUMode(source_p, UMODE_OPER)) |
| 62 |
michael |
2549 |
snprintf(status, sizeof(status), "%c%s%s%s", target_p->away[0] ? 'G' : 'H', |
| 63 |
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HasUMode(target_p, UMODE_REGISTERED) ? "r" : "", |
| 64 |
michael |
2088 |
HasUMode(target_p, UMODE_OPER) ? "*" : "", op_flags); |
| 65 |
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else |
| 66 |
michael |
2549 |
snprintf(status, sizeof(status), "%c%s%s%s", target_p->away[0] ? 'G' : 'H', |
| 67 |
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HasUMode(target_p, UMODE_REGISTERED) ? "r" : "", |
| 68 |
michael |
2088 |
HasUMode(target_p, UMODE_OPER) && |
| 69 |
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!HasUMode(target_p, UMODE_HIDDEN) ? "*" : "", op_flags); |
| 70 |
adx |
30 |
|
| 71 |
michael |
2748 |
if (ConfigServerHide.hide_servers || IsHidden(target_p->servptr)) |
| 72 |
michael |
3109 |
sendto_one_numeric(source_p, &me, RPL_WHOREPLY, |
| 73 |
michael |
4617 |
(name) ? (name) : "*", |
| 74 |
michael |
2088 |
target_p->username, target_p->host, |
| 75 |
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HasUMode(source_p, UMODE_OPER) ? target_p->servptr->name : "*", |
| 76 |
michael |
2756 |
target_p->name, status, |
| 77 |
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HasUMode(source_p, UMODE_OPER) ? target_p->hopcount : 0, target_p->info); |
| 78 |
adx |
30 |
else |
| 79 |
michael |
3109 |
sendto_one_numeric(source_p, &me, RPL_WHOREPLY, |
| 80 |
michael |
4617 |
(name) ? (name) : "*", target_p->username, |
| 81 |
michael |
2088 |
target_p->host, target_p->servptr->name, target_p->name, |
| 82 |
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status, target_p->hopcount, target_p->info); |
| 83 |
adx |
30 |
} |
| 84 |
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| 85 |
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/* who_common_channel |
| 86 |
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* inputs - pointer to client requesting who |
| 87 |
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* - pointer to channel member chain. |
| 88 |
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* - char * mask to match |
| 89 |
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* - int if oper on a server or not |
| 90 |
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* - pointer to int maxmatches |
| 91 |
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* output - NONE |
| 92 |
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* side effects - lists matching clients on specified channel, |
| 93 |
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* marks matched clients. |
| 94 |
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* |
| 95 |
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*/ |
| 96 |
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static void |
| 97 |
michael |
3910 |
who_common_channel(struct Client *source_p, struct Channel *chptr, char *mask, |
| 98 |
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int server_oper, unsigned int *maxmatches) |
| 99 |
adx |
30 |
{ |
| 100 |
michael |
4816 |
dlink_node *node = NULL; |
| 101 |
adx |
30 |
|
| 102 |
michael |
4816 |
DLINK_FOREACH(node, chptr->members.head) |
| 103 |
adx |
30 |
{ |
| 104 |
michael |
4816 |
struct Client *target_p = ((struct Membership *)node->data)->client_p; |
| 105 |
adx |
30 |
|
| 106 |
michael |
1219 |
if (!HasUMode(target_p, UMODE_INVISIBLE) || HasFlag(target_p, FLAGS_MARK)) |
| 107 |
adx |
30 |
continue; |
| 108 |
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| 109 |
michael |
1295 |
if (server_oper) |
| 110 |
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if (!HasUMode(target_p, UMODE_OPER) || |
| 111 |
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(HasUMode(target_p, UMODE_HIDDEN) && !HasUMode(source_p, UMODE_OPER))) |
| 112 |
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continue; |
| 113 |
adx |
30 |
|
| 114 |
michael |
1219 |
AddFlag(target_p, FLAGS_MARK); |
| 115 |
adx |
30 |
|
| 116 |
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if ((mask == NULL) || |
| 117 |
michael |
1652 |
!match(mask, target_p->name) || !match(mask, target_p->username) || |
| 118 |
michael |
2820 |
!match(mask, target_p->host) || |
| 119 |
michael |
1219 |
((!ConfigServerHide.hide_servers || HasUMode(source_p, UMODE_OPER)) && |
| 120 |
michael |
1652 |
!match(mask, target_p->servptr->name)) || |
| 121 |
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!match(mask, target_p->info)) |
| 122 |
adx |
30 |
{ |
| 123 |
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do_who(source_p, target_p, NULL, ""); |
| 124 |
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| 125 |
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if (*maxmatches > 0) |
| 126 |
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{ |
| 127 |
adx |
268 |
if (--(*maxmatches) == 0) |
| 128 |
michael |
4509 |
{ |
| 129 |
michael |
5640 |
sendto_one_numeric(source_p, &me, ERR_WHOLIMEXCEED, WHO_MAX_REPLIES, "WHO"); |
| 130 |
adx |
268 |
return; |
| 131 |
michael |
4509 |
} |
| 132 |
adx |
30 |
} |
| 133 |
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} |
| 134 |
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} |
| 135 |
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} |
| 136 |
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|
| 137 |
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/* who_global() |
| 138 |
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* |
| 139 |
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* inputs - pointer to client requesting who |
| 140 |
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* - char * mask to match |
| 141 |
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* - int if oper on a server or not |
| 142 |
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* output - NONE |
| 143 |
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* side effects - do a global scan of all clients looking for match |
| 144 |
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* this is slightly expensive on EFnet ... |
| 145 |
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*/ |
| 146 |
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static void |
| 147 |
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who_global(struct Client *source_p, char *mask, int server_oper) |
| 148 |
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{ |
| 149 |
michael |
4816 |
dlink_node *node = NULL; |
| 150 |
michael |
5640 |
unsigned int maxmatches = WHO_MAX_REPLIES; |
| 151 |
michael |
1230 |
static time_t last_used = 0; |
| 152 |
adx |
30 |
|
| 153 |
michael |
1219 |
if (!HasUMode(source_p, UMODE_OPER)) |
| 154 |
adx |
268 |
{ |
| 155 |
michael |
4341 |
if ((last_used + ConfigGeneral.pace_wait) > CurrentTime) |
| 156 |
adx |
268 |
{ |
| 157 |
michael |
4758 |
sendto_one_numeric(source_p, &me, RPL_LOAD2HI, "WHO"); |
| 158 |
adx |
268 |
return; |
| 159 |
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} |
| 160 |
michael |
980 |
|
| 161 |
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last_used = CurrentTime; |
| 162 |
adx |
268 |
} |
| 163 |
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| 164 |
michael |
3346 |
/* First, list all matching invisible clients on common channels */ |
| 165 |
michael |
4816 |
DLINK_FOREACH(node, source_p->channel.head) |
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adx |
30 |
{ |
| 167 |
michael |
4816 |
struct Channel *chptr = ((struct Membership *)node->data)->chptr; |
| 168 |
adx |
30 |
who_common_channel(source_p, chptr, mask, server_oper, &maxmatches); |
| 169 |
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} |
| 170 |
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|
| 171 |
michael |
3346 |
/* Second, list all matching visible clients */ |
| 172 |
michael |
4816 |
DLINK_FOREACH(node, global_client_list.head) |
| 173 |
adx |
30 |
{ |
| 174 |
michael |
4816 |
struct Client *target_p = node->data; |
| 175 |
adx |
30 |
|
| 176 |
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if (!IsClient(target_p)) |
| 177 |
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continue; |
| 178 |
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|
| 179 |
michael |
1219 |
if (HasUMode(target_p, UMODE_INVISIBLE)) |
| 180 |
adx |
30 |
{ |
| 181 |
michael |
1219 |
DelFlag(target_p, FLAGS_MARK); |
| 182 |
adx |
30 |
continue; |
| 183 |
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} |
| 184 |
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|
| 185 |
michael |
1295 |
if (server_oper) |
| 186 |
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if (!HasUMode(target_p, UMODE_OPER) || |
| 187 |
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(HasUMode(target_p, UMODE_HIDDEN) && !HasUMode(source_p, UMODE_OPER))) |
| 188 |
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continue; |
| 189 |
adx |
30 |
|
| 190 |
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if (!mask || |
| 191 |
michael |
1652 |
!match(mask, target_p->name) || !match(mask, target_p->username) || |
| 192 |
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!match(mask, target_p->host) || !match(mask, target_p->servptr->name) || |
| 193 |
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!match(mask, target_p->info)) |
| 194 |
adx |
30 |
{ |
| 195 |
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do_who(source_p, target_p, NULL, ""); |
| 196 |
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| 197 |
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if (maxmatches > 0) |
| 198 |
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{ |
| 199 |
|
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if (--maxmatches == 0) |
| 200 |
michael |
4509 |
{ |
| 201 |
michael |
5640 |
sendto_one_numeric(source_p, &me, ERR_WHOLIMEXCEED, WHO_MAX_REPLIES, "WHO"); |
| 202 |
adx |
268 |
return; |
| 203 |
michael |
4509 |
} |
| 204 |
adx |
30 |
} |
| 205 |
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} |
| 206 |
|
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} |
| 207 |
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} |
| 208 |
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|
| 209 |
|
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/* do_who_on_channel() |
| 210 |
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* |
| 211 |
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* inputs - pointer to client requesting who |
| 212 |
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* - pointer to channel to do who on |
| 213 |
|
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* - The "real name" of this channel |
| 214 |
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* - int if source_p is a server oper or not |
| 215 |
|
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* - int if client is member or not |
| 216 |
|
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* - int server_op flag |
| 217 |
|
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* output - NONE |
| 218 |
|
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* side effects - do a who on given channel |
| 219 |
|
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*/ |
| 220 |
|
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static void |
| 221 |
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do_who_on_channel(struct Client *source_p, struct Channel *chptr, |
| 222 |
michael |
4816 |
int is_member, int server_oper) |
| 223 |
adx |
30 |
{ |
| 224 |
michael |
4816 |
dlink_node *node = NULL; |
| 225 |
adx |
30 |
|
| 226 |
michael |
4816 |
DLINK_FOREACH(node, chptr->members.head) |
| 227 |
adx |
30 |
{ |
| 228 |
michael |
4816 |
struct Membership *member = node->data; |
| 229 |
|
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struct Client *target_p = member->client_p; |
| 230 |
adx |
30 |
|
| 231 |
michael |
4816 |
if (is_member || !HasUMode(target_p, UMODE_INVISIBLE)) |
| 232 |
adx |
30 |
{ |
| 233 |
michael |
1295 |
if (server_oper) |
| 234 |
|
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if (!HasUMode(target_p, UMODE_OPER) || |
| 235 |
|
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(HasUMode(target_p, UMODE_HIDDEN) && !HasUMode(source_p, UMODE_OPER))) |
| 236 |
|
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continue; |
| 237 |
michael |
4816 |
do_who(source_p, target_p, chptr->name, get_member_status(member, !!HasCap(source_p, CAP_MULTI_PREFIX))); |
| 238 |
adx |
30 |
} |
| 239 |
|
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} |
| 240 |
|
|
} |
| 241 |
|
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|
| 242 |
michael |
3346 |
/*! \brief WHO command handler |
| 243 |
|
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* |
| 244 |
|
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* \param source_p Pointer to allocated Client struct from which the message |
| 245 |
|
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* originally comes from. This can be a local or remote client. |
| 246 |
|
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* \param parc Integer holding the number of supplied arguments. |
| 247 |
|
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* \param parv Argument vector where parv[0] .. parv[parc-1] are non-NULL |
| 248 |
|
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* pointers. |
| 249 |
|
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* \note Valid arguments for this command are: |
| 250 |
|
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* - parv[0] = command |
| 251 |
|
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* - parv[1] = nickname/channelname |
| 252 |
|
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* - parv[2] = additional selection flag, only 'o' for now |
| 253 |
|
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*/ |
| 254 |
michael |
2820 |
static int |
| 255 |
michael |
3156 |
m_who(struct Client *source_p, int parc, char *parv[]) |
| 256 |
adx |
30 |
{ |
| 257 |
michael |
2088 |
struct Client *target_p = NULL; |
| 258 |
|
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struct Channel *chptr = NULL; |
| 259 |
|
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char *mask = parv[1]; |
| 260 |
michael |
4816 |
dlink_node *node = NULL; |
| 261 |
michael |
5640 |
const int server_oper = parc > 2 ? (*parv[2] == 'o') : 0; /* Show OPERS only */ |
| 262 |
adx |
30 |
|
| 263 |
michael |
2088 |
/* See if mask is there, collapse it or return if not there */ |
| 264 |
|
|
if (EmptyString(mask)) |
| 265 |
|
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{ |
| 266 |
|
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who_global(source_p, mask, server_oper); |
| 267 |
michael |
3109 |
sendto_one_numeric(source_p, &me, RPL_ENDOFWHO, "*"); |
| 268 |
michael |
2820 |
return 0; |
| 269 |
michael |
2088 |
} |
| 270 |
adx |
30 |
|
| 271 |
michael |
3346 |
/* Mask isn't NULL at this point. repeat after me... -db */ |
| 272 |
michael |
2088 |
collapse(mask); |
| 273 |
|
|
|
| 274 |
|
|
/* '/who #some_channel' */ |
| 275 |
|
|
if (IsChanPrefix(*mask)) |
| 276 |
adx |
30 |
{ |
| 277 |
michael |
2088 |
/* List all users on a given channel */ |
| 278 |
michael |
3246 |
if ((chptr = hash_find_channel(mask))) |
| 279 |
michael |
2088 |
{ |
| 280 |
michael |
3270 |
if (IsMember(source_p, chptr) || HasUMode(source_p, UMODE_ADMIN)) |
| 281 |
michael |
4530 |
do_who_on_channel(source_p, chptr, 1, server_oper); |
| 282 |
michael |
2088 |
else if (!SecretChannel(chptr)) |
| 283 |
michael |
4530 |
do_who_on_channel(source_p, chptr, 0, server_oper); |
| 284 |
michael |
2088 |
} |
| 285 |
|
|
|
| 286 |
michael |
3109 |
sendto_one_numeric(source_p, &me, RPL_ENDOFWHO, mask); |
| 287 |
michael |
2820 |
return 0; |
| 288 |
adx |
30 |
} |
| 289 |
michael |
2088 |
|
| 290 |
|
|
/* '/who nick' */ |
| 291 |
michael |
4997 |
if ((target_p = find_person(source_p, mask)) && |
| 292 |
michael |
4824 |
(!server_oper || HasUMode(target_p, UMODE_OPER))) |
| 293 |
michael |
2088 |
{ |
| 294 |
michael |
4816 |
DLINK_FOREACH(node, target_p->channel.head) |
| 295 |
michael |
2088 |
{ |
| 296 |
michael |
4816 |
chptr = ((struct Membership *)node->data)->chptr; |
| 297 |
michael |
2088 |
if (PubChannel(chptr) || IsMember(source_p, chptr)) |
| 298 |
|
|
break; |
| 299 |
|
|
} |
| 300 |
|
|
|
| 301 |
michael |
4816 |
if (node) |
| 302 |
michael |
4617 |
do_who(source_p, target_p, chptr->name, |
| 303 |
michael |
4816 |
get_member_status(node->data, !!HasCap(source_p, CAP_MULTI_PREFIX))); |
| 304 |
michael |
2088 |
else |
| 305 |
|
|
do_who(source_p, target_p, NULL, ""); |
| 306 |
|
|
|
| 307 |
michael |
3109 |
sendto_one_numeric(source_p, &me, RPL_ENDOFWHO, mask); |
| 308 |
michael |
2820 |
return 0; |
| 309 |
michael |
2088 |
} |
| 310 |
|
|
|
| 311 |
michael |
2091 |
/* '/who *' */ |
| 312 |
|
|
if (!strcmp(mask, "*")) |
| 313 |
|
|
{ |
| 314 |
michael |
4816 |
if ((node = source_p->channel.head)) |
| 315 |
michael |
2091 |
{ |
| 316 |
michael |
4816 |
chptr = ((struct Membership *)node->data)->chptr; |
| 317 |
michael |
4530 |
do_who_on_channel(source_p, chptr, 1, server_oper); |
| 318 |
michael |
2091 |
} |
| 319 |
|
|
|
| 320 |
michael |
3109 |
sendto_one_numeric(source_p, &me, RPL_ENDOFWHO, "*"); |
| 321 |
michael |
2820 |
return 0; |
| 322 |
michael |
2091 |
} |
| 323 |
|
|
|
| 324 |
michael |
2088 |
/* '/who 0' */ |
| 325 |
|
|
if (!strcmp(mask, "0")) |
| 326 |
|
|
who_global(source_p, NULL, server_oper); |
| 327 |
|
|
else |
| 328 |
|
|
who_global(source_p, mask, server_oper); |
| 329 |
|
|
|
| 330 |
|
|
/* Wasn't a nick, wasn't a channel, wasn't a '*' so ... */ |
| 331 |
michael |
3109 |
sendto_one_numeric(source_p, &me, RPL_ENDOFWHO, mask); |
| 332 |
michael |
2820 |
return 0; |
| 333 |
adx |
30 |
} |
| 334 |
michael |
1230 |
|
| 335 |
michael |
2820 |
static struct Message who_msgtab = |
| 336 |
|
|
{ |
| 337 |
michael |
5880 |
.cmd = "WHO", |
| 338 |
|
|
.args_min = 2, |
| 339 |
|
|
.args_max = MAXPARA, |
| 340 |
|
|
.handlers[UNREGISTERED_HANDLER] = m_unregistered, |
| 341 |
|
|
.handlers[CLIENT_HANDLER] = m_who, |
| 342 |
|
|
.handlers[SERVER_HANDLER] = m_ignore, |
| 343 |
|
|
.handlers[ENCAP_HANDLER] = m_ignore, |
| 344 |
|
|
.handlers[OPER_HANDLER] = m_who |
| 345 |
michael |
1230 |
}; |
| 346 |
|
|
|
| 347 |
|
|
static void |
| 348 |
|
|
module_init(void) |
| 349 |
|
|
{ |
| 350 |
|
|
mod_add_cmd(&who_msgtab); |
| 351 |
|
|
} |
| 352 |
|
|
|
| 353 |
|
|
static void |
| 354 |
|
|
module_exit(void) |
| 355 |
|
|
{ |
| 356 |
|
|
mod_del_cmd(&who_msgtab); |
| 357 |
|
|
} |
| 358 |
|
|
|
| 359 |
michael |
2820 |
struct module module_entry = |
| 360 |
|
|
{ |
| 361 |
michael |
1230 |
.version = "$Revision$", |
| 362 |
|
|
.modinit = module_init, |
| 363 |
|
|
.modexit = module_exit, |
| 364 |
|
|
}; |