1 |
/* |
2 |
* ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd) |
3 |
* |
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* Copyright (c) 1997-2017 ircd-hybrid development team |
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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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 |
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* USA |
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*/ |
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|
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/*! \file user.c |
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* \brief User related functions. |
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* \version $Id$ |
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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 "user.h" |
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#include "channel.h" |
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#include "channel_mode.h" |
32 |
#include "client.h" |
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#include "hash.h" |
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#include "id.h" |
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#include "irc_string.h" |
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#include "ircd.h" |
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#include "listener.h" |
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#include "motd.h" |
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#include "numeric.h" |
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#include "conf.h" |
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#include "conf_gecos.h" |
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#include "log.h" |
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#include "server.h" |
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#include "send.h" |
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#include "memory.h" |
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#include "packet.h" |
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#include "rng_mt.h" |
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#include "userhost.h" |
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#include "misc.h" |
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#include "parse.h" |
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#include "watch.h" |
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#include "isupport.h" |
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#include "tls.h" |
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|
55 |
static char umode_buffer[IRCD_BUFSIZE]; |
56 |
|
57 |
const struct user_modes *umode_map[256]; |
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const struct user_modes umode_tab[] = |
59 |
{ |
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{ 'D', UMODE_DEAF }, |
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{ 'F', UMODE_FARCONNECT }, |
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{ 'G', UMODE_SOFTCALLERID }, |
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{ 'H', UMODE_HIDDEN }, |
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{ 'R', UMODE_REGONLY }, |
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{ 'S', UMODE_SSL }, |
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{ 'W', UMODE_WEBIRC }, |
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{ 'a', UMODE_ADMIN }, |
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{ 'b', UMODE_BOTS }, |
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{ 'c', UMODE_CCONN }, |
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{ 'd', UMODE_DEBUG }, |
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{ 'e', UMODE_EXTERNAL }, |
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{ 'f', UMODE_FULL }, |
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{ 'g', UMODE_CALLERID }, |
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{ 'i', UMODE_INVISIBLE }, |
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{ 'j', UMODE_REJ }, |
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{ 'k', UMODE_SKILL }, |
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{ 'l', UMODE_LOCOPS }, |
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{ 'n', UMODE_NCHANGE }, |
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{ 'o', UMODE_OPER }, |
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{ 'p', UMODE_HIDECHANS }, |
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{ 'q', UMODE_HIDEIDLE }, |
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{ 'r', UMODE_REGISTERED }, |
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{ 's', UMODE_SERVNOTICE }, |
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{ 'u', UMODE_UNAUTH }, |
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{ 'w', UMODE_WALLOP }, |
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{ 'x', UMODE_HIDDENHOST }, |
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{ 'y', UMODE_SPY }, |
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{ '\0', 0 } |
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}; |
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|
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void |
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user_modes_init(void) |
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{ |
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char *umode_buffer_ptr = umode_buffer; |
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|
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for (const struct user_modes *tab = umode_tab; tab->c; ++tab) |
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{ |
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umode_map[tab->c] = tab; |
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*umode_buffer_ptr++ = tab->c; |
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} |
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|
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*umode_buffer_ptr = '\0'; |
103 |
} |
104 |
|
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/* show_lusers() |
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* |
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* inputs - pointer to client |
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* output - NONE |
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* side effects - display to client user counts etc. |
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*/ |
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void |
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show_lusers(struct Client *client_p) |
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{ |
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if (!ConfigServerHide.hide_servers || HasUMode(client_p, UMODE_OPER)) |
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sendto_one_numeric(client_p, &me, RPL_LUSERCLIENT, (Count.total - Count.invisi), |
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Count.invisi, dlink_list_length(&global_server_list)); |
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else |
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sendto_one_numeric(client_p, &me, RPL_LUSERCLIENT, (Count.total - Count.invisi), |
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Count.invisi, 1); |
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|
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if (Count.oper) |
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sendto_one_numeric(client_p, &me, RPL_LUSEROP, Count.oper); |
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|
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if (dlink_list_length(&unknown_list)) |
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sendto_one_numeric(client_p, &me, RPL_LUSERUNKNOWN, dlink_list_length(&unknown_list)); |
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|
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if (dlink_list_length(&channel_list)) |
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sendto_one_numeric(client_p, &me, RPL_LUSERCHANNELS, dlink_list_length(&channel_list)); |
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|
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if (!ConfigServerHide.hide_servers || HasUMode(client_p, UMODE_OPER)) |
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{ |
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sendto_one_numeric(client_p, &me, RPL_LUSERME, Count.local, Count.myserver); |
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sendto_one_numeric(client_p, &me, RPL_LOCALUSERS, Count.local, Count.max_loc); |
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} |
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else |
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{ |
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sendto_one_numeric(client_p, &me, RPL_LUSERME, Count.total, 0); |
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sendto_one_numeric(client_p, &me, RPL_LOCALUSERS, Count.total, Count.max_tot); |
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} |
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|
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sendto_one_numeric(client_p, &me, RPL_GLOBALUSERS, Count.total, Count.max_tot); |
142 |
|
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if (!ConfigServerHide.hide_servers || HasUMode(client_p, UMODE_OPER)) |
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sendto_one_numeric(client_p, &me, RPL_STATSCONN, Count.max_loc_con, |
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Count.max_loc_cli, Count.totalrestartcount); |
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|
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if (Count.local > Count.max_loc_cli) |
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Count.max_loc_cli = Count.local; |
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|
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if ((Count.local + Count.myserver) > Count.max_loc_con) |
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Count.max_loc_con = Count.local + Count.myserver; |
152 |
} |
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|
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/* report_and_set_user_flags() |
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* |
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* inputs - pointer to client_p |
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* - pointer to conf for this user |
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* output - NONE |
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* side effects - Report to user any special flags |
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* they are getting, and set them. |
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*/ |
162 |
static void |
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report_and_set_user_flags(struct Client *client_p, const struct MaskItem *conf) |
164 |
{ |
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/* If this user is being spoofed, tell them so */ |
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if (IsConfDoSpoofIp(conf)) |
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sendto_one_notice(client_p, &me, ":*** Spoofing your IP"); |
168 |
|
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/* If this user is in the exception class, set it "E lined" */ |
170 |
if (IsConfExemptKline(conf)) |
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{ |
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AddFlag(client_p, FLAGS_EXEMPTKLINE); |
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sendto_one_notice(client_p, &me, ":*** You are exempt from K/D lines"); |
174 |
} |
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|
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if (IsConfExemptXline(conf)) |
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{ |
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AddFlag(client_p, FLAGS_EXEMPTXLINE); |
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sendto_one_notice(client_p, &me, ":*** You are exempt from X lines"); |
180 |
} |
181 |
|
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if (IsConfExemptResv(conf)) |
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{ |
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AddFlag(client_p, FLAGS_EXEMPTRESV); |
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sendto_one_notice(client_p, &me, ":*** You are exempt from resvs"); |
186 |
} |
187 |
|
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/* If this user is exempt from user limits set it "F lined" */ |
189 |
if (IsConfExemptLimits(conf)) |
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{ |
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AddFlag(client_p, FLAGS_NOLIMIT); |
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sendto_one_notice(client_p, &me, ":*** You are exempt from user limits"); |
193 |
} |
194 |
|
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if (IsConfCanFlood(conf)) |
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{ |
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AddFlag(client_p, FLAGS_CANFLOOD); |
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sendto_one_notice(client_p, &me, ":*** You are exempt from flood protection"); |
199 |
} |
200 |
} |
201 |
|
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/* introduce_client() |
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* |
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* inputs - client_p |
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* output - NONE |
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* side effects - This common function introduces a client to the rest |
207 |
* of the net, either from a local client connect or |
208 |
* from a remote connect. |
209 |
*/ |
210 |
static void |
211 |
introduce_client(struct Client *client_p) |
212 |
{ |
213 |
dlink_node *node = NULL; |
214 |
char ubuf[IRCD_BUFSIZE] = ""; |
215 |
|
216 |
send_umode(client_p, MyConnect(client_p), 0, ubuf); |
217 |
watch_check_hash(client_p, RPL_LOGON); |
218 |
|
219 |
if (ubuf[0] == '\0') |
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{ |
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ubuf[0] = '+'; |
222 |
ubuf[1] = '\0'; |
223 |
} |
224 |
|
225 |
DLINK_FOREACH(node, local_server_list.head) |
226 |
{ |
227 |
struct Client *server_p = node->data; |
228 |
|
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if (server_p == client_p->from) |
230 |
continue; |
231 |
|
232 |
sendto_one(server_p, ":%s UID %s %u %ju %s %s %s %s %s %s :%s", |
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client_p->servptr->id, |
234 |
client_p->name, client_p->hopcount+1, |
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client_p->tsinfo, |
236 |
ubuf, client_p->username, client_p->host, |
237 |
client_p->sockhost, client_p->id, |
238 |
client_p->account, |
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client_p->info); |
240 |
|
241 |
if (!EmptyString(client_p->certfp)) |
242 |
sendto_one(server_p, ":%s CERTFP %s", client_p->id, client_p->certfp); |
243 |
} |
244 |
} |
245 |
|
246 |
/* user_welcome() |
247 |
* |
248 |
* inputs - client pointer to client to welcome |
249 |
* output - NONE |
250 |
* side effects - |
251 |
*/ |
252 |
static void |
253 |
user_welcome(struct Client *client_p) |
254 |
{ |
255 |
static const char built_date[] = __DATE__ " at " __TIME__; |
256 |
|
257 |
if (HasFlag(client_p, FLAGS_SSL)) |
258 |
{ |
259 |
AddUMode(client_p, UMODE_SSL); |
260 |
sendto_one_notice(client_p, &me, ":*** Connected securely via %s", |
261 |
tls_get_cipher(&client_p->connection->fd.ssl)); |
262 |
} |
263 |
|
264 |
sendto_one_numeric(client_p, &me, RPL_WELCOME, ConfigServerInfo.network_name, |
265 |
client_p->name); |
266 |
sendto_one_numeric(client_p, &me, RPL_YOURHOST, |
267 |
listener_get_name(client_p->connection->listener), ircd_version); |
268 |
sendto_one_numeric(client_p, &me, RPL_CREATED, built_date); |
269 |
sendto_one_numeric(client_p, &me, RPL_MYINFO, me.name, ircd_version, umode_buffer); |
270 |
|
271 |
isupport_show(client_p); |
272 |
show_lusers(client_p); |
273 |
motd_signon(client_p); |
274 |
} |
275 |
|
276 |
/* check_xline() |
277 |
* |
278 |
* inputs - pointer to client to test |
279 |
* outupt - 1 if exiting 0 if ok |
280 |
* side effects - |
281 |
*/ |
282 |
static int |
283 |
check_xline(struct Client *client_p) |
284 |
{ |
285 |
const struct GecosItem *gecos = NULL; |
286 |
|
287 |
if (HasFlag(client_p, FLAGS_EXEMPTXLINE)) |
288 |
return 0; |
289 |
|
290 |
if ((gecos = gecos_find(client_p->info, match))) |
291 |
{ |
292 |
sendto_realops_flags(UMODE_REJ, L_ALL, SEND_NOTICE, |
293 |
"X-line Rejecting [%s] [%s], user %s [%s]", |
294 |
client_p->info, gecos->reason, |
295 |
get_client_name(client_p, HIDE_IP), |
296 |
client_p->sockhost); |
297 |
|
298 |
++ServerStats.is_ref; |
299 |
exit_client(client_p, "Bad user info"); |
300 |
return 1; |
301 |
} |
302 |
|
303 |
return 0; |
304 |
} |
305 |
|
306 |
/*! \brief This function is called when both NICK and USER messages |
307 |
* have been accepted for the client, in whatever order. Only |
308 |
* after this, is the UID message propagated. |
309 |
* \param client_p Pointer to given client to introduce |
310 |
*/ |
311 |
void |
312 |
register_local_user(struct Client *client_p) |
313 |
{ |
314 |
const struct MaskItem *conf = NULL; |
315 |
|
316 |
assert(client_p == client_p->from); |
317 |
assert(MyConnect(client_p)); |
318 |
assert(IsUnknown(client_p)); |
319 |
assert(!client_p->connection->registration); |
320 |
|
321 |
if (ConfigGeneral.ping_cookie) |
322 |
{ |
323 |
if (!HasFlag(client_p, FLAGS_PINGSENT) && !client_p->connection->random_ping) |
324 |
{ |
325 |
do |
326 |
client_p->connection->random_ping = genrand_int32(); |
327 |
while (!client_p->connection->random_ping); |
328 |
|
329 |
sendto_one(client_p, "PING :%u", client_p->connection->random_ping); |
330 |
AddFlag(client_p, FLAGS_PINGSENT); |
331 |
return; |
332 |
} |
333 |
|
334 |
if (!HasFlag(client_p, FLAGS_PING_COOKIE)) |
335 |
return; |
336 |
} |
337 |
|
338 |
client_p->connection->last_privmsg = CurrentTime; |
339 |
/* Straight up the maximum rate of flooding... */ |
340 |
client_p->connection->allow_read = MAX_FLOOD_BURST; |
341 |
|
342 |
if (!check_client(client_p)) |
343 |
return; |
344 |
|
345 |
if (!valid_hostname(client_p->host)) |
346 |
{ |
347 |
sendto_one_notice(client_p, &me, ":*** Notice -- You have an illegal " |
348 |
"character in your hostname"); |
349 |
strlcpy(client_p->host, client_p->sockhost, sizeof(client_p->host)); |
350 |
} |
351 |
|
352 |
conf = client_p->connection->confs.head->data; |
353 |
|
354 |
if (!HasFlag(client_p, FLAGS_GOTID)) |
355 |
{ |
356 |
char username[USERLEN + 1] = ""; |
357 |
unsigned int i = 0; |
358 |
|
359 |
if (IsNeedIdentd(conf)) |
360 |
{ |
361 |
++ServerStats.is_ref; |
362 |
sendto_one_notice(client_p, &me, ":*** Notice -- You need to install " |
363 |
"identd to use this server"); |
364 |
exit_client(client_p, "Install identd"); |
365 |
return; |
366 |
} |
367 |
|
368 |
strlcpy(username, client_p->username, sizeof(username)); |
369 |
|
370 |
if (!IsNoTilde(conf)) |
371 |
client_p->username[i++] = '~'; |
372 |
|
373 |
for (const char *p = username; *p && i < USERLEN; ++p) |
374 |
client_p->username[i++] = *p; |
375 |
|
376 |
client_p->username[i] = '\0'; |
377 |
} |
378 |
|
379 |
/* Password check */ |
380 |
if (!EmptyString(conf->passwd)) |
381 |
{ |
382 |
if (!match_conf_password(client_p->connection->password, conf)) |
383 |
{ |
384 |
++ServerStats.is_ref; |
385 |
|
386 |
sendto_one_numeric(client_p, &me, ERR_PASSWDMISMATCH); |
387 |
exit_client(client_p, "Bad Password"); |
388 |
return; |
389 |
} |
390 |
} |
391 |
|
392 |
/* |
393 |
* Don't free client_p->connection->password here - it can be required |
394 |
* by masked /stats I if there are auth {} blocks with need_password = no; |
395 |
* --adx |
396 |
*/ |
397 |
|
398 |
/* |
399 |
* Report if user has &^>= etc. and set flags as needed in client_p |
400 |
*/ |
401 |
report_and_set_user_flags(client_p, conf); |
402 |
|
403 |
if (IsDead(client_p)) |
404 |
return; |
405 |
|
406 |
/* |
407 |
* Limit clients - |
408 |
* We want to be able to have servers and F-line clients |
409 |
* connect, so save room for "buffer" connections. |
410 |
* Smaller servers may want to decrease this, and it should |
411 |
* probably be just a percentage of the MAXCLIENTS... |
412 |
* -Taner |
413 |
*/ |
414 |
if ((Count.local >= GlobalSetOptions.maxclients + MAX_BUFFER) || |
415 |
(Count.local >= GlobalSetOptions.maxclients && !HasFlag(client_p, FLAGS_NOLIMIT))) |
416 |
{ |
417 |
sendto_realops_flags(UMODE_FULL, L_ALL, SEND_NOTICE, |
418 |
"Too many clients, rejecting %s[%s].", |
419 |
client_p->name, client_p->host); |
420 |
++ServerStats.is_ref; |
421 |
exit_client(client_p, "Sorry, server is full - try later"); |
422 |
return; |
423 |
} |
424 |
|
425 |
if (!valid_username(client_p->username, 1)) |
426 |
{ |
427 |
char buf[IRCD_BUFSIZE] = ""; |
428 |
|
429 |
sendto_realops_flags(UMODE_REJ, L_ALL, SEND_NOTICE, |
430 |
"Invalid username: %s (%s@%s)", |
431 |
client_p->name, client_p->username, client_p->host); |
432 |
++ServerStats.is_ref; |
433 |
snprintf(buf, sizeof(buf), "Invalid username [%s]", client_p->username); |
434 |
exit_client(client_p, buf); |
435 |
return; |
436 |
} |
437 |
|
438 |
if (check_xline(client_p)) |
439 |
return; |
440 |
|
441 |
const char *id; |
442 |
while (hash_find_id((id = uid_get()))) |
443 |
; |
444 |
|
445 |
strlcpy(client_p->id, id, sizeof(client_p->id)); |
446 |
hash_add_id(client_p); |
447 |
|
448 |
sendto_realops_flags(UMODE_CCONN, L_ALL, SEND_NOTICE, |
449 |
"Client connecting: %s (%s@%s) [%s] {%s} [%s] <%s>", |
450 |
client_p->name, client_p->username, client_p->host, |
451 |
client_p->sockhost, |
452 |
get_client_class(&client_p->connection->confs), |
453 |
client_p->info, client_p->id); |
454 |
|
455 |
if (ConfigGeneral.invisible_on_connect) |
456 |
{ |
457 |
AddUMode(client_p, UMODE_INVISIBLE); |
458 |
++Count.invisi; |
459 |
} |
460 |
|
461 |
if (++Count.local > Count.max_loc) |
462 |
{ |
463 |
Count.max_loc = Count.local; |
464 |
|
465 |
if (!(Count.max_loc % 10)) |
466 |
sendto_realops_flags(UMODE_SERVNOTICE, L_ALL, SEND_NOTICE, |
467 |
"New maximum local client connections: %u", |
468 |
Count.max_loc); |
469 |
} |
470 |
|
471 |
if (++Count.total > Count.max_tot) |
472 |
Count.max_tot = Count.total; |
473 |
++Count.totalrestartcount; |
474 |
|
475 |
assert(client_p->servptr == &me); |
476 |
SetClient(client_p); |
477 |
dlinkAdd(client_p, &client_p->lnode, &client_p->servptr->serv->client_list); |
478 |
dlinkAdd(client_p, &client_p->node, &global_client_list); |
479 |
|
480 |
assert(dlinkFind(&unknown_list, client_p)); |
481 |
|
482 |
dlink_move_node(&client_p->connection->lclient_node, |
483 |
&unknown_list, &local_client_list); |
484 |
|
485 |
user_welcome(client_p); |
486 |
userhost_add(client_p->sockhost, 0); |
487 |
AddFlag(client_p, FLAGS_USERHOST); |
488 |
|
489 |
introduce_client(client_p); |
490 |
} |
491 |
|
492 |
/* register_remote_user() |
493 |
* |
494 |
* inputs - client_p remote or directly connected client |
495 |
* - username to register as |
496 |
* - host name to register as |
497 |
* - server name |
498 |
* output - NONE |
499 |
* side effects - This function is called when a remote client |
500 |
* is introduced by a server. |
501 |
*/ |
502 |
void |
503 |
register_remote_user(struct Client *client_p) |
504 |
{ |
505 |
assert(client_p->servptr->from == client_p->from); |
506 |
|
507 |
/* |
508 |
* If the nick has been introduced by a services server, |
509 |
* make it a service as well. |
510 |
*/ |
511 |
if (HasFlag(client_p->servptr, FLAGS_SERVICE)) |
512 |
AddFlag(client_p, FLAGS_SERVICE); |
513 |
|
514 |
if (++Count.total > Count.max_tot) |
515 |
Count.max_tot = Count.total; |
516 |
|
517 |
SetClient(client_p); |
518 |
dlinkAdd(client_p, &client_p->lnode, &client_p->servptr->serv->client_list); |
519 |
dlinkAdd(client_p, &client_p->node, &global_client_list); |
520 |
userhost_add(client_p->sockhost, 1); |
521 |
AddFlag(client_p, FLAGS_USERHOST); |
522 |
|
523 |
if (HasFlag(client_p->servptr, FLAGS_EOB)) |
524 |
sendto_realops_flags(UMODE_FARCONNECT, L_ALL, SEND_NOTICE, |
525 |
"Client connecting at %s: %s (%s@%s) [%s] [%s] <%s>", |
526 |
client_p->servptr->name, |
527 |
client_p->name, client_p->username, client_p->host, |
528 |
client_p->sockhost, client_p->info, client_p->id); |
529 |
|
530 |
introduce_client(client_p); |
531 |
} |
532 |
|
533 |
/* valid_hostname() |
534 |
* |
535 |
* Inputs - pointer to hostname |
536 |
* Output - 1 if valid, 0 if not |
537 |
* Side effects - check hostname for validity |
538 |
* |
539 |
* NOTE: this doesn't allow a hostname to begin with a dot and |
540 |
* will not allow more dots than chars. |
541 |
*/ |
542 |
int |
543 |
valid_hostname(const char *hostname) |
544 |
{ |
545 |
const char *p = hostname; |
546 |
|
547 |
assert(p); |
548 |
|
549 |
if (EmptyString(p) || *p == '.' || *p == ':') |
550 |
return 0; |
551 |
|
552 |
for (; *p; ++p) |
553 |
if (!IsHostChar(*p)) |
554 |
return 0; |
555 |
|
556 |
return p - hostname <= HOSTLEN; |
557 |
} |
558 |
|
559 |
/* valid_username() |
560 |
* |
561 |
* Inputs - pointer to user |
562 |
* Output - 1 if valid, 0 if not |
563 |
* Side effects - check username for validity |
564 |
* |
565 |
* Absolutely always reject any '*' '!' '?' '@' in an user name |
566 |
* reject any odd control characters names. |
567 |
* Allow '.' in username to allow for "first.last" |
568 |
* style of username |
569 |
*/ |
570 |
int |
571 |
valid_username(const char *username, const int local) |
572 |
{ |
573 |
const char *p = username; |
574 |
|
575 |
assert(p); |
576 |
|
577 |
if (*p == '~') |
578 |
++p; |
579 |
|
580 |
/* |
581 |
* Reject usernames that don't start with an alphanum |
582 |
* i.e. reject jokers who have '-@somehost' or '.@somehost' |
583 |
* or "-hi-@somehost", "h-----@somehost" would still be accepted. |
584 |
*/ |
585 |
if (!IsAlNum(*p)) |
586 |
return 0; |
587 |
|
588 |
if (local) |
589 |
{ |
590 |
unsigned int dots = 0; |
591 |
|
592 |
while (*++p) |
593 |
{ |
594 |
if (*p == '.' && ConfigGeneral.dots_in_ident) |
595 |
{ |
596 |
if (++dots > ConfigGeneral.dots_in_ident) |
597 |
return 0; |
598 |
if (!IsUserChar(*(p + 1))) |
599 |
return 0; |
600 |
} |
601 |
else if (!IsUserChar(*p)) |
602 |
return 0; |
603 |
} |
604 |
} |
605 |
else |
606 |
{ |
607 |
while (*++p) |
608 |
if (!IsUserChar(*p)) |
609 |
return 0; |
610 |
} |
611 |
|
612 |
return p - username <= USERLEN; |
613 |
} |
614 |
|
615 |
/* clean_nick_name() |
616 |
* |
617 |
* input - nickname |
618 |
* - whether it's a local nick (1) or remote (0) |
619 |
* output - none |
620 |
* side effects - walks through the nickname, returning 0 if erroneous |
621 |
*/ |
622 |
int |
623 |
valid_nickname(const char *nickname, const int local) |
624 |
{ |
625 |
const char *p = nickname; |
626 |
|
627 |
assert(p); |
628 |
|
629 |
/* |
630 |
* Nicks can't start with a digit or - or be 0 length. |
631 |
*/ |
632 |
if (EmptyString(p) || *p == '-' || (IsDigit(*p) && local)) |
633 |
return 0; |
634 |
|
635 |
for (; *p; ++p) |
636 |
if (!IsNickChar(*p)) |
637 |
return 0; |
638 |
|
639 |
return p - nickname <= NICKLEN; |
640 |
} |
641 |
|
642 |
/*! \brief Builds a mode change string to buffer pointed by \a buf |
643 |
* \param client_p Pointer to client |
644 |
* \param dispatch Whether to send a MODE message to client_p |
645 |
* \param old Old user mode to compare against when building new mode buffer |
646 |
* \param buf Pointer to buffer to build string in |
647 |
*/ |
648 |
void |
649 |
send_umode(struct Client *client_p, unsigned int dispatch, |
650 |
unsigned int old, char *buf) |
651 |
{ |
652 |
char *m = buf; |
653 |
int what = 0; |
654 |
|
655 |
/* |
656 |
* Build a string in umode_buf to represent the change in the user's |
657 |
* mode between the new (client_p->umodes) and 'old'. |
658 |
*/ |
659 |
for (const struct user_modes *tab = umode_tab; tab->c; ++tab) |
660 |
{ |
661 |
if ((tab->flag & old) && !HasUMode(client_p, tab->flag)) |
662 |
{ |
663 |
if (what == MODE_DEL) |
664 |
*m++ = tab->c; |
665 |
else |
666 |
{ |
667 |
what = MODE_DEL; |
668 |
*m++ = '-'; |
669 |
*m++ = tab->c; |
670 |
} |
671 |
} |
672 |
else if (!(tab->flag & old) && HasUMode(client_p, tab->flag)) |
673 |
{ |
674 |
if (what == MODE_ADD) |
675 |
*m++ = tab->c; |
676 |
else |
677 |
{ |
678 |
what = MODE_ADD; |
679 |
*m++ = '+'; |
680 |
*m++ = tab->c; |
681 |
} |
682 |
} |
683 |
} |
684 |
|
685 |
*m = '\0'; |
686 |
|
687 |
if (dispatch && *buf) |
688 |
sendto_one(client_p, ":%s!%s@%s MODE %s :%s", |
689 |
client_p->name, client_p->username, |
690 |
client_p->host, client_p->name, buf); |
691 |
} |
692 |
|
693 |
/* send_umode_out() |
694 |
* |
695 |
* inputs - |
696 |
* output - NONE |
697 |
* side effects - Only send ubuf out to servers that know about this client |
698 |
*/ |
699 |
void |
700 |
send_umode_out(struct Client *client_p, unsigned int old) |
701 |
{ |
702 |
char buf[IRCD_BUFSIZE] = ""; |
703 |
|
704 |
send_umode(client_p, MyConnect(client_p), old, buf); |
705 |
|
706 |
if (buf[0]) |
707 |
sendto_server(client_p, 0, 0, ":%s MODE %s :%s", |
708 |
client_p->id, client_p->id, buf); |
709 |
} |
710 |
|
711 |
void |
712 |
user_set_hostmask(struct Client *client_p, const char *hostname, const int what) |
713 |
{ |
714 |
dlink_node *node = NULL; |
715 |
|
716 |
if (!strcmp(client_p->host, hostname)) |
717 |
return; |
718 |
|
719 |
switch (what) |
720 |
{ |
721 |
case MODE_ADD: |
722 |
AddUMode(client_p, UMODE_HIDDENHOST); |
723 |
break; |
724 |
case MODE_DEL: |
725 |
DelUMode(client_p, UMODE_HIDDENHOST); |
726 |
break; |
727 |
default: return; |
728 |
} |
729 |
|
730 |
if (ConfigGeneral.cycle_on_host_change) |
731 |
sendto_common_channels_local(client_p, 0, 0, CAP_CHGHOST, ":%s!%s@%s QUIT :Changing hostname", |
732 |
client_p->name, client_p->username, client_p->host); |
733 |
|
734 |
sendto_common_channels_local(client_p, 0, CAP_CHGHOST, 0, ":%s!%s@%s CHGHOST %s %s", |
735 |
client_p->name, client_p->username, |
736 |
client_p->host, client_p->username, hostname); |
737 |
|
738 |
strlcpy(client_p->host, hostname, sizeof(client_p->host)); |
739 |
|
740 |
if (MyConnect(client_p)) |
741 |
{ |
742 |
sendto_one_numeric(client_p, &me, RPL_VISIBLEHOST, client_p->host); |
743 |
clear_ban_cache_list(&client_p->channel); |
744 |
} |
745 |
|
746 |
if (!ConfigGeneral.cycle_on_host_change) |
747 |
return; |
748 |
|
749 |
DLINK_FOREACH(node, client_p->channel.head) |
750 |
{ |
751 |
char modebuf[CMEMBER_STATUS_FLAGS_LEN + 1]; |
752 |
char nickbuf[CMEMBER_STATUS_FLAGS_LEN * NICKLEN + CMEMBER_STATUS_FLAGS_LEN] = ""; |
753 |
char *p = modebuf; |
754 |
int len = 0; |
755 |
const struct Membership *member = node->data; |
756 |
|
757 |
if (has_member_flags(member, CHFL_CHANOP)) |
758 |
{ |
759 |
*p++ = 'o'; |
760 |
len += snprintf(nickbuf + len, sizeof(nickbuf) - len, len ? " %s" : "%s", client_p->name); |
761 |
} |
762 |
|
763 |
if (has_member_flags(member, CHFL_HALFOP)) |
764 |
{ |
765 |
*p++ = 'h'; |
766 |
len += snprintf(nickbuf + len, sizeof(nickbuf) - len, len ? " %s" : "%s", client_p->name); |
767 |
} |
768 |
|
769 |
if (has_member_flags(member, CHFL_VOICE)) |
770 |
{ |
771 |
*p++ = 'v'; |
772 |
len += snprintf(nickbuf + len, sizeof(nickbuf) - len, len ? " %s" : "%s", client_p->name); |
773 |
} |
774 |
|
775 |
*p = '\0'; |
776 |
|
777 |
sendto_channel_local(client_p, member->chptr, 0, CAP_EXTENDED_JOIN, CAP_CHGHOST, ":%s!%s@%s JOIN %s %s :%s", |
778 |
client_p->name, client_p->username, |
779 |
client_p->host, member->chptr->name, |
780 |
client_p->account, client_p->info); |
781 |
sendto_channel_local(client_p, member->chptr, 0, 0, CAP_EXTENDED_JOIN | CAP_CHGHOST, ":%s!%s@%s JOIN :%s", |
782 |
client_p->name, client_p->username, |
783 |
client_p->host, member->chptr->name); |
784 |
|
785 |
if (nickbuf[0]) |
786 |
sendto_channel_local(client_p, member->chptr, 0, 0, CAP_CHGHOST, ":%s MODE %s +%s %s", |
787 |
client_p->servptr->name, member->chptr->name, |
788 |
modebuf, nickbuf); |
789 |
} |
790 |
|
791 |
if (client_p->away[0]) |
792 |
sendto_common_channels_local(client_p, 0, CAP_AWAY_NOTIFY, CAP_CHGHOST, |
793 |
":%s!%s@%s AWAY :%s", |
794 |
client_p->name, client_p->username, |
795 |
client_p->host, client_p->away); |
796 |
} |