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/* |
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* ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd) |
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* |
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* Copyright (c) 1997-2018 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" |
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#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 "server_capab.h" /* TBR: RHOST compatibility mode */ |
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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 "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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|
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static char umode_buffer[UMODE_MAX_STR]; |
56 |
|
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const struct user_modes *umode_map[256]; |
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const struct user_modes umode_tab[] = |
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{ |
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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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{ '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'; |
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} |
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|
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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 == 0 || HasUMode(client_p, UMODE_OPER)) |
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sendto_one_numeric(client_p, &me, RPL_LUSERCLIENT, (dlink_list_length(&global_client_list) - 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, (dlink_list_length(&global_client_list) - 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_get_list())) |
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sendto_one_numeric(client_p, &me, RPL_LUSERCHANNELS, dlink_list_length(channel_get_list())); |
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|
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if (ConfigServerHide.hide_servers == 0 || HasUMode(client_p, UMODE_OPER)) |
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{ |
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sendto_one_numeric(client_p, &me, RPL_LUSERME, dlink_list_length(&local_client_list), dlink_list_length(&local_server_list)); |
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sendto_one_numeric(client_p, &me, RPL_LOCALUSERS, dlink_list_length(&local_client_list), Count.max_loc); |
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sendto_one_numeric(client_p, &me, RPL_GLOBALUSERS, dlink_list_length(&global_client_list), Count.max_tot); |
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sendto_one_numeric(client_p, &me, RPL_STATSCONN, Count.max_loc_con, Count.max_loc, Count.totalrestartcount); |
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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, dlink_list_length(&global_client_list), 0); |
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sendto_one_numeric(client_p, &me, RPL_LOCALUSERS, dlink_list_length(&global_client_list), Count.max_tot); |
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sendto_one_numeric(client_p, &me, RPL_GLOBALUSERS, dlink_list_length(&global_client_list), Count.max_tot); |
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} |
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} |
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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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*/ |
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static void |
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report_and_set_user_flags(struct Client *client_p, const struct MaskItem *conf) |
154 |
{ |
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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"); |
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|
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/* If this user is in the exception class, set it "E lined" */ |
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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"); |
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} |
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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"); |
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} |
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|
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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"); |
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} |
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|
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/* If this user is exempt from user limits set it "F lined" */ |
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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"); |
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} |
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|
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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"); |
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} |
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} |
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|
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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 |
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* of the net, either from a local client connect or |
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* from a remote connect. |
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*/ |
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static void |
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introduce_client(struct Client *client_p) |
202 |
{ |
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dlink_node *node; |
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char buf[UMODE_MAX_STR] = ""; |
205 |
|
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send_umode(client_p, MyConnect(client_p), 0, buf); |
207 |
watch_check_hash(client_p, RPL_LOGON); |
208 |
|
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if (buf[0] == '\0') |
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{ |
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buf[0] = '+'; |
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buf[1] = '\0'; |
213 |
} |
214 |
|
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DLINK_FOREACH(node, local_server_list.head) |
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{ |
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struct Client *server_p = node->data; |
218 |
|
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if (server_p == client_p->from) |
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continue; |
221 |
|
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/* TBR: compatibility mode */ |
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if (IsCapable(server_p, CAPAB_RHOST)) |
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sendto_one(server_p, ":%s UID %s %u %ju %s %s %s %s %s %s %s :%s", |
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client_p->servptr->id, |
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client_p->name, client_p->hopcount+1, |
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client_p->tsinfo, |
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buf, client_p->username, client_p->host, client_p->realhost, |
229 |
client_p->sockhost, client_p->id, |
230 |
client_p->account, |
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client_p->info); |
232 |
else |
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sendto_one(server_p, ":%s UID %s %u %ju %s %s %s %s %s %s :%s", |
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client_p->servptr->id, |
235 |
client_p->name, client_p->hopcount+1, |
236 |
client_p->tsinfo, |
237 |
buf, client_p->username, client_p->host, |
238 |
client_p->sockhost, client_p->id, |
239 |
client_p->account, |
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client_p->info); |
241 |
|
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if (!EmptyString(client_p->certfp)) |
243 |
sendto_one(server_p, ":%s CERTFP %s", client_p->id, client_p->certfp); |
244 |
} |
245 |
} |
246 |
|
247 |
/* user_welcome() |
248 |
* |
249 |
* inputs - client pointer to client to welcome |
250 |
* output - NONE |
251 |
* side effects - |
252 |
*/ |
253 |
static void |
254 |
user_welcome(struct Client *client_p) |
255 |
{ |
256 |
static const char built_date[] = __DATE__ " at " __TIME__; |
257 |
|
258 |
if (HasFlag(client_p, FLAGS_SSL)) |
259 |
{ |
260 |
AddUMode(client_p, UMODE_SSL); |
261 |
sendto_one_notice(client_p, &me, ":*** Connected securely via %s", |
262 |
tls_get_cipher(&client_p->connection->fd->ssl)); |
263 |
} |
264 |
|
265 |
sendto_one_numeric(client_p, &me, RPL_WELCOME, ConfigServerInfo.network_name, |
266 |
client_p->name, client_p->username, client_p->realhost); |
267 |
sendto_one_numeric(client_p, &me, RPL_YOURHOST, |
268 |
listener_get_name(client_p->connection->listener), ircd_version); |
269 |
sendto_one_numeric(client_p, &me, RPL_CREATED, built_date); |
270 |
sendto_one_numeric(client_p, &me, RPL_MYINFO, me.name, ircd_version, umode_buffer); |
271 |
|
272 |
isupport_show(client_p); |
273 |
show_lusers(client_p); |
274 |
motd_signon(client_p); |
275 |
} |
276 |
|
277 |
/* check_xline() |
278 |
* |
279 |
* inputs - pointer to client to test |
280 |
* outupt - 1 if exiting 0 if ok |
281 |
* side effects - |
282 |
*/ |
283 |
static int |
284 |
check_xline(struct Client *client_p) |
285 |
{ |
286 |
const struct GecosItem *gecos = NULL; |
287 |
|
288 |
if (HasFlag(client_p, FLAGS_EXEMPTXLINE)) |
289 |
return 0; |
290 |
|
291 |
if ((gecos = gecos_find(client_p->info, match))) |
292 |
{ |
293 |
sendto_realops_flags(UMODE_REJ, L_ALL, SEND_NOTICE, |
294 |
"X-line Rejecting [%s] [%s], user %s [%s]", |
295 |
client_p->info, gecos->reason, |
296 |
client_get_name(client_p, HIDE_IP), |
297 |
client_p->sockhost); |
298 |
|
299 |
++ServerStats.is_ref; |
300 |
exit_client(client_p, "Bad user info"); |
301 |
return 1; |
302 |
} |
303 |
|
304 |
return 0; |
305 |
} |
306 |
|
307 |
/*! \brief This function is called when both NICK and USER messages |
308 |
* have been accepted for the client, in whatever order. Only |
309 |
* after this, is the UID message propagated. |
310 |
* \param client_p Pointer to given client to introduce |
311 |
*/ |
312 |
void |
313 |
register_local_user(struct Client *client_p) |
314 |
{ |
315 |
const struct MaskItem *conf = NULL; |
316 |
|
317 |
assert(client_p == client_p->from); |
318 |
assert(client_p->connection->registration == 0); |
319 |
assert(MyConnect(client_p)); |
320 |
assert(IsUnknown(client_p)); |
321 |
|
322 |
if (ConfigGeneral.ping_cookie) |
323 |
{ |
324 |
if (!HasFlag(client_p, FLAGS_PINGSENT) && client_p->connection->random_ping == 0) |
325 |
{ |
326 |
do |
327 |
client_p->connection->random_ping = genrand_int32(); |
328 |
while (client_p->connection->random_ping == 0); |
329 |
|
330 |
sendto_one(client_p, "PING :%u", client_p->connection->random_ping); |
331 |
AddFlag(client_p, FLAGS_PINGSENT); |
332 |
return; |
333 |
} |
334 |
|
335 |
if (!HasFlag(client_p, FLAGS_PING_COOKIE)) |
336 |
return; |
337 |
} |
338 |
|
339 |
client_p->connection->last_privmsg = CurrentTime; |
340 |
/* Straight up the maximum rate of flooding... */ |
341 |
client_p->connection->allow_read = MAX_FLOOD_BURST; |
342 |
|
343 |
if (check_client(client_p) == 0) |
344 |
return; |
345 |
|
346 |
conf = client_p->connection->confs.head->data; |
347 |
|
348 |
if (!HasFlag(client_p, FLAGS_GOTID)) |
349 |
{ |
350 |
char username[USERLEN + 1] = ""; |
351 |
unsigned int i = 0; |
352 |
|
353 |
if (IsNeedIdentd(conf)) |
354 |
{ |
355 |
++ServerStats.is_ref; |
356 |
sendto_one_notice(client_p, &me, ":*** Notice -- You need to install " |
357 |
"identd to use this server"); |
358 |
exit_client(client_p, "Install identd"); |
359 |
return; |
360 |
} |
361 |
|
362 |
strlcpy(username, client_p->username, sizeof(username)); |
363 |
|
364 |
if (!IsNoTilde(conf)) |
365 |
client_p->username[i++] = '~'; |
366 |
|
367 |
for (const char *p = username; *p && i < USERLEN; ++p) |
368 |
client_p->username[i++] = *p; |
369 |
|
370 |
client_p->username[i] = '\0'; |
371 |
} |
372 |
|
373 |
/* Password check */ |
374 |
if (!EmptyString(conf->passwd)) |
375 |
{ |
376 |
if (match_conf_password(client_p->connection->password, conf) == 0) |
377 |
{ |
378 |
++ServerStats.is_ref; |
379 |
|
380 |
sendto_one_numeric(client_p, &me, ERR_PASSWDMISMATCH); |
381 |
exit_client(client_p, "Bad Password"); |
382 |
return; |
383 |
} |
384 |
} |
385 |
|
386 |
/* |
387 |
* Don't free client_p->connection->password here - it can be required |
388 |
* by masked /stats I if there are auth {} blocks with need_password = no; |
389 |
* --adx |
390 |
*/ |
391 |
|
392 |
/* |
393 |
* Report if user has &^>= etc. and set flags as needed in client_p |
394 |
*/ |
395 |
report_and_set_user_flags(client_p, conf); |
396 |
|
397 |
if (IsDead(client_p)) |
398 |
return; |
399 |
|
400 |
/* |
401 |
* Limit clients - |
402 |
* We want to be able to have servers and F-line clients |
403 |
* connect, so save room for "buffer" connections. |
404 |
* Smaller servers may want to decrease this, and it should |
405 |
* probably be just a percentage of the MAXCLIENTS... |
406 |
* -Taner |
407 |
*/ |
408 |
if ((dlink_list_length(&local_client_list) >= GlobalSetOptions.maxclients + MAX_BUFFER) || |
409 |
(dlink_list_length(&local_client_list) >= GlobalSetOptions.maxclients && !HasFlag(client_p, FLAGS_NOLIMIT))) |
410 |
{ |
411 |
sendto_realops_flags(UMODE_FULL, L_ALL, SEND_NOTICE, |
412 |
"Too many clients, rejecting %s[%s].", |
413 |
client_p->name, client_p->host); |
414 |
++ServerStats.is_ref; |
415 |
exit_client(client_p, "Sorry, server is full - try later"); |
416 |
return; |
417 |
} |
418 |
|
419 |
if (valid_username(client_p->username, 1) == 0) |
420 |
{ |
421 |
char buf[IRCD_BUFSIZE] = ""; |
422 |
|
423 |
sendto_realops_flags(UMODE_REJ, L_ALL, SEND_NOTICE, |
424 |
"Invalid username: %s (%s@%s)", |
425 |
client_p->name, client_p->username, client_p->host); |
426 |
++ServerStats.is_ref; |
427 |
snprintf(buf, sizeof(buf), "Invalid username [%s]", client_p->username); |
428 |
exit_client(client_p, buf); |
429 |
return; |
430 |
} |
431 |
|
432 |
if (check_xline(client_p)) |
433 |
return; |
434 |
|
435 |
const char *id; |
436 |
while (hash_find_id((id = uid_get()))) |
437 |
; |
438 |
|
439 |
strlcpy(client_p->id, id, sizeof(client_p->id)); |
440 |
hash_add_id(client_p); |
441 |
|
442 |
sendto_realops_flags(UMODE_CCONN, L_ALL, SEND_NOTICE, |
443 |
"Client connecting: %s (%s@%s) [%s] {%s} [%s] <%s>", |
444 |
client_p->name, client_p->username, client_p->realhost, |
445 |
client_p->sockhost, |
446 |
get_client_class(&client_p->connection->confs), |
447 |
client_p->info, client_p->id); |
448 |
|
449 |
if (ConfigGeneral.invisible_on_connect) |
450 |
{ |
451 |
AddUMode(client_p, UMODE_INVISIBLE); |
452 |
++Count.invisi; |
453 |
} |
454 |
|
455 |
assert(client_p->servptr == &me); |
456 |
|
457 |
SetClient(client_p); |
458 |
dlinkAdd(client_p, &client_p->lnode, &client_p->servptr->serv->client_list); |
459 |
dlinkAdd(client_p, &client_p->node, &global_client_list); |
460 |
|
461 |
assert(dlinkFind(&unknown_list, client_p)); |
462 |
|
463 |
dlink_move_node(&client_p->connection->lclient_node, |
464 |
&unknown_list, &local_client_list); |
465 |
|
466 |
if (dlink_list_length(&local_client_list) > Count.max_loc) |
467 |
{ |
468 |
Count.max_loc = dlink_list_length(&local_client_list); |
469 |
|
470 |
if (!(Count.max_loc % 10)) |
471 |
sendto_realops_flags(UMODE_SERVNOTICE, L_ALL, SEND_NOTICE, |
472 |
"New maximum local client connections: %u", |
473 |
Count.max_loc); |
474 |
} |
475 |
|
476 |
if ((dlink_list_length(&local_client_list) + |
477 |
dlink_list_length(&local_server_list)) > Count.max_loc_con) |
478 |
Count.max_loc_con = dlink_list_length(&local_client_list) + |
479 |
dlink_list_length(&local_server_list); |
480 |
|
481 |
if (dlink_list_length(&global_client_list) > Count.max_tot) |
482 |
Count.max_tot = dlink_list_length(&global_client_list); |
483 |
++Count.totalrestartcount; |
484 |
|
485 |
user_welcome(client_p); |
486 |
|
487 |
introduce_client(client_p); |
488 |
} |
489 |
|
490 |
/* register_remote_user() |
491 |
* |
492 |
* inputs - client_p remote or directly connected client |
493 |
* - username to register as |
494 |
* - host name to register as |
495 |
* - server name |
496 |
* output - NONE |
497 |
* side effects - This function is called when a remote client |
498 |
* is introduced by a server. |
499 |
*/ |
500 |
void |
501 |
register_remote_user(struct Client *client_p) |
502 |
{ |
503 |
assert(client_p->servptr->from == client_p->from); |
504 |
|
505 |
/* |
506 |
* If the nick has been introduced by a services server, |
507 |
* make it a service as well. |
508 |
*/ |
509 |
if (HasFlag(client_p->servptr, FLAGS_SERVICE)) |
510 |
AddFlag(client_p, FLAGS_SERVICE); |
511 |
|
512 |
SetClient(client_p); |
513 |
dlinkAdd(client_p, &client_p->lnode, &client_p->servptr->serv->client_list); |
514 |
dlinkAdd(client_p, &client_p->node, &global_client_list); |
515 |
|
516 |
if (dlink_list_length(&global_client_list) > Count.max_tot) |
517 |
Count.max_tot = dlink_list_length(&global_client_list); |
518 |
|
519 |
if (HasFlag(client_p->servptr, FLAGS_EOB)) |
520 |
sendto_realops_flags(UMODE_FARCONNECT, L_ALL, SEND_NOTICE, |
521 |
"Client connecting at %s: %s (%s@%s) [%s] [%s] <%s>", |
522 |
client_p->servptr->name, |
523 |
client_p->name, client_p->username, client_p->realhost, |
524 |
client_p->sockhost, client_p->info, client_p->id); |
525 |
|
526 |
introduce_client(client_p); |
527 |
} |
528 |
|
529 |
/* valid_hostname() |
530 |
* |
531 |
* Inputs - pointer to hostname |
532 |
* Output - 1 if valid, 0 if not |
533 |
* Side effects - check hostname for validity |
534 |
* |
535 |
* NOTE: this doesn't allow a hostname to begin with a dot and |
536 |
* will not allow more dots than chars. |
537 |
*/ |
538 |
int |
539 |
valid_hostname(const char *hostname) |
540 |
{ |
541 |
const char *p = hostname; |
542 |
|
543 |
assert(p); |
544 |
|
545 |
if (EmptyString(p) || *p == '.' || *p == ':') |
546 |
return 0; |
547 |
|
548 |
for (; *p; ++p) |
549 |
if (!IsHostChar(*p)) |
550 |
return 0; |
551 |
|
552 |
return p - hostname <= HOSTLEN; |
553 |
} |
554 |
|
555 |
/* valid_username() |
556 |
* |
557 |
* Inputs - pointer to user |
558 |
* Output - 1 if valid, 0 if not |
559 |
* Side effects - check username for validity |
560 |
* |
561 |
* Absolutely always reject any '*' '!' '?' '@' in an user name |
562 |
* reject any odd control characters names. |
563 |
* Allow '.' in username to allow for "first.last" |
564 |
* style of username |
565 |
*/ |
566 |
int |
567 |
valid_username(const char *username, const int local) |
568 |
{ |
569 |
const char *p = username; |
570 |
|
571 |
assert(p); |
572 |
|
573 |
if (*p == '~') |
574 |
++p; |
575 |
|
576 |
/* |
577 |
* Reject usernames that don't start with an alphanum |
578 |
* i.e. reject jokers who have '-@somehost' or '.@somehost' |
579 |
* or "-hi-@somehost", "h-----@somehost" would still be accepted. |
580 |
*/ |
581 |
if (!IsAlNum(*p)) |
582 |
return 0; |
583 |
|
584 |
if (local) |
585 |
{ |
586 |
unsigned int dots = 0; |
587 |
|
588 |
while (*++p) |
589 |
{ |
590 |
if (*p == '.' && ConfigGeneral.dots_in_ident) |
591 |
{ |
592 |
if (++dots > ConfigGeneral.dots_in_ident) |
593 |
return 0; |
594 |
if (!IsUserChar(*(p + 1))) |
595 |
return 0; |
596 |
} |
597 |
else if (!IsUserChar(*p)) |
598 |
return 0; |
599 |
} |
600 |
} |
601 |
else |
602 |
{ |
603 |
while (*++p) |
604 |
if (!IsUserChar(*p)) |
605 |
return 0; |
606 |
} |
607 |
|
608 |
return p - username <= USERLEN; |
609 |
} |
610 |
|
611 |
/* clean_nick_name() |
612 |
* |
613 |
* input - nickname |
614 |
* - whether it's a local nick (1) or remote (0) |
615 |
* output - none |
616 |
* side effects - walks through the nickname, returning 0 if erroneous |
617 |
*/ |
618 |
int |
619 |
valid_nickname(const char *nickname, const int local) |
620 |
{ |
621 |
const char *p = nickname; |
622 |
|
623 |
assert(p); |
624 |
|
625 |
/* |
626 |
* Nicks can't start with a digit or - or be 0 length. |
627 |
*/ |
628 |
if (EmptyString(p) || *p == '-' || (IsDigit(*p) && local)) |
629 |
return 0; |
630 |
|
631 |
for (; *p; ++p) |
632 |
if (!IsNickChar(*p)) |
633 |
return 0; |
634 |
|
635 |
return p - nickname <= NICKLEN; |
636 |
} |
637 |
|
638 |
/*! \brief Builds a mode change string to buffer pointed by \a buf |
639 |
* \param client_p Pointer to client |
640 |
* \param dispatch Whether to send a MODE message to client_p |
641 |
* \param old Old user mode to compare against when building new mode buffer |
642 |
* \param buf Pointer to buffer to build string in |
643 |
*/ |
644 |
void |
645 |
send_umode(struct Client *client_p, unsigned int dispatch, |
646 |
unsigned int old, char *buf) |
647 |
{ |
648 |
char *m = buf; |
649 |
int what = 0; |
650 |
|
651 |
/* |
652 |
* Build a string in umode_buf to represent the change in the user's |
653 |
* mode between the new (client_p->umodes) and 'old'. |
654 |
*/ |
655 |
for (const struct user_modes *tab = umode_tab; tab->c; ++tab) |
656 |
{ |
657 |
if ((tab->flag & old) && !HasUMode(client_p, tab->flag)) |
658 |
{ |
659 |
if (what == MODE_DEL) |
660 |
*m++ = tab->c; |
661 |
else |
662 |
{ |
663 |
what = MODE_DEL; |
664 |
*m++ = '-'; |
665 |
*m++ = tab->c; |
666 |
} |
667 |
} |
668 |
else if (!(tab->flag & old) && HasUMode(client_p, tab->flag)) |
669 |
{ |
670 |
if (what == MODE_ADD) |
671 |
*m++ = tab->c; |
672 |
else |
673 |
{ |
674 |
what = MODE_ADD; |
675 |
*m++ = '+'; |
676 |
*m++ = tab->c; |
677 |
} |
678 |
} |
679 |
} |
680 |
|
681 |
*m = '\0'; |
682 |
|
683 |
if (dispatch && *buf) |
684 |
sendto_one(client_p, ":%s!%s@%s MODE %s :%s", |
685 |
client_p->name, client_p->username, |
686 |
client_p->host, client_p->name, buf); |
687 |
} |
688 |
|
689 |
/* send_umode_out() |
690 |
* |
691 |
* inputs - |
692 |
* output - NONE |
693 |
* side effects - Only send ubuf out to servers that know about this client |
694 |
*/ |
695 |
void |
696 |
send_umode_out(struct Client *client_p, unsigned int old) |
697 |
{ |
698 |
char buf[UMODE_MAX_STR] = ""; |
699 |
|
700 |
send_umode(client_p, MyConnect(client_p), old, buf); |
701 |
|
702 |
if (buf[0]) |
703 |
sendto_server(client_p, 0, 0, ":%s MODE %s :%s", |
704 |
client_p->id, client_p->id, buf); |
705 |
} |
706 |
|
707 |
void |
708 |
user_set_hostmask(struct Client *client_p, const char *hostname) |
709 |
{ |
710 |
dlink_node *node; |
711 |
|
712 |
if (strcmp(client_p->host, hostname) == 0) |
713 |
return; |
714 |
|
715 |
if (ConfigGeneral.cycle_on_host_change) |
716 |
sendto_common_channels_local(client_p, 0, 0, CAP_CHGHOST, ":%s!%s@%s QUIT :Changing hostname", |
717 |
client_p->name, client_p->username, client_p->host); |
718 |
|
719 |
sendto_common_channels_local(client_p, 0, CAP_CHGHOST, 0, ":%s!%s@%s CHGHOST %s %s", |
720 |
client_p->name, client_p->username, |
721 |
client_p->host, client_p->username, hostname); |
722 |
|
723 |
strlcpy(client_p->host, hostname, sizeof(client_p->host)); |
724 |
|
725 |
if (MyConnect(client_p)) |
726 |
{ |
727 |
sendto_one_numeric(client_p, &me, RPL_VISIBLEHOST, client_p->host); |
728 |
clear_ban_cache_list(&client_p->channel); |
729 |
} |
730 |
|
731 |
if (ConfigGeneral.cycle_on_host_change == 0) |
732 |
return; |
733 |
|
734 |
DLINK_FOREACH(node, client_p->channel.head) |
735 |
{ |
736 |
char modebuf[CMEMBER_STATUS_FLAGS_LEN + 1]; |
737 |
char nickbuf[CMEMBER_STATUS_FLAGS_LEN * NICKLEN + CMEMBER_STATUS_FLAGS_LEN] = ""; |
738 |
char *p = modebuf; |
739 |
int len = 0; |
740 |
const struct Membership *member = node->data; |
741 |
|
742 |
if (has_member_flags(member, CHFL_CHANOP)) |
743 |
{ |
744 |
*p++ = 'o'; |
745 |
len += snprintf(nickbuf + len, sizeof(nickbuf) - len, len ? " %s" : "%s", client_p->name); |
746 |
} |
747 |
|
748 |
if (has_member_flags(member, CHFL_HALFOP)) |
749 |
{ |
750 |
*p++ = 'h'; |
751 |
len += snprintf(nickbuf + len, sizeof(nickbuf) - len, len ? " %s" : "%s", client_p->name); |
752 |
} |
753 |
|
754 |
if (has_member_flags(member, CHFL_VOICE)) |
755 |
{ |
756 |
*p++ = 'v'; |
757 |
len += snprintf(nickbuf + len, sizeof(nickbuf) - len, len ? " %s" : "%s", client_p->name); |
758 |
} |
759 |
|
760 |
*p = '\0'; |
761 |
|
762 |
sendto_channel_local(client_p, member->chptr, 0, CAP_EXTENDED_JOIN, CAP_CHGHOST, ":%s!%s@%s JOIN %s %s :%s", |
763 |
client_p->name, client_p->username, |
764 |
client_p->host, member->chptr->name, |
765 |
client_p->account, client_p->info); |
766 |
sendto_channel_local(client_p, member->chptr, 0, 0, CAP_EXTENDED_JOIN | CAP_CHGHOST, ":%s!%s@%s JOIN :%s", |
767 |
client_p->name, client_p->username, |
768 |
client_p->host, member->chptr->name); |
769 |
|
770 |
if (nickbuf[0]) |
771 |
sendto_channel_local(client_p, member->chptr, 0, 0, CAP_CHGHOST, ":%s MODE %s +%s %s", |
772 |
client_p->servptr->name, member->chptr->name, |
773 |
modebuf, nickbuf); |
774 |
} |
775 |
|
776 |
if (client_p->away[0]) |
777 |
sendto_common_channels_local(client_p, 0, CAP_AWAY_NOTIFY, CAP_CHGHOST, |
778 |
":%s!%s@%s AWAY :%s", |
779 |
client_p->name, client_p->username, |
780 |
client_p->host, client_p->away); |
781 |
} |