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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) 1997-2019 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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#include "patchlevel.h" |
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|
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static char umode_buffer[UMODE_MAX_STR]; |
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|
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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) |
155 |
{ |
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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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} |
191 |
} |
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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 |
198 |
* of the net, either from a local client connect or |
199 |
* from a remote connect. |
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*/ |
201 |
static void |
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introduce_client(struct Client *client_p) |
203 |
{ |
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dlink_node *node; |
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char buf[UMODE_MAX_STR] = ""; |
206 |
|
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send_umode(client_p, MyConnect(client_p), 0, buf); |
208 |
watch_check_hash(client_p, RPL_LOGON); |
209 |
|
210 |
if (buf[0] == '\0') |
211 |
{ |
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buf[0] = '+'; |
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buf[1] = '\0'; |
214 |
} |
215 |
|
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DLINK_FOREACH(node, local_server_list.head) |
217 |
{ |
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struct Client *server_p = node->data; |
219 |
|
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if (server_p == client_p->from) |
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continue; |
222 |
|
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/* TBR: compatibility mode */ |
224 |
if (IsCapable(server_p, CAPAB_RHOST)) |
225 |
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, |
230 |
client_p->sockhost, client_p->id, |
231 |
client_p->account, |
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client_p->info); |
233 |
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, |
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client_p->name, client_p->hopcount+1, |
237 |
client_p->tsinfo, |
238 |
buf, client_p->username, client_p->host, |
239 |
client_p->sockhost, client_p->id, |
240 |
client_p->account, |
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client_p->info); |
242 |
|
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if (!EmptyString(client_p->certfp)) |
244 |
sendto_one(server_p, ":%s CERTFP %s", client_p->id, client_p->certfp); |
245 |
} |
246 |
} |
247 |
|
248 |
/* user_welcome() |
249 |
* |
250 |
* inputs - client pointer to client to welcome |
251 |
* output - NONE |
252 |
* side effects - |
253 |
*/ |
254 |
static void |
255 |
user_welcome(struct Client *client_p) |
256 |
{ |
257 |
static const char built_date[] = __DATE__ " at " __TIME__; |
258 |
|
259 |
if (HasFlag(client_p, FLAGS_SSL)) |
260 |
{ |
261 |
AddUMode(client_p, UMODE_SSL); |
262 |
sendto_one_notice(client_p, &me, ":*** Connected securely via %s", |
263 |
tls_get_cipher(&client_p->connection->fd->ssl)); |
264 |
} |
265 |
|
266 |
sendto_one_numeric(client_p, &me, RPL_WELCOME, ConfigServerInfo.network_name, |
267 |
client_p->name, client_p->username, client_p->realhost); |
268 |
sendto_one_numeric(client_p, &me, RPL_YOURHOST, |
269 |
listener_get_name(client_p->connection->listener), PATCHLEVEL); |
270 |
sendto_one_numeric(client_p, &me, RPL_CREATED, built_date); |
271 |
sendto_one_numeric(client_p, &me, RPL_MYINFO, me.name, PATCHLEVEL, umode_buffer); |
272 |
|
273 |
isupport_show(client_p); |
274 |
show_lusers(client_p); |
275 |
motd_signon(client_p); |
276 |
} |
277 |
|
278 |
/* check_xline() |
279 |
* |
280 |
* inputs - pointer to client to test |
281 |
* outupt - 1 if exiting 0 if ok |
282 |
* side effects - |
283 |
*/ |
284 |
static bool |
285 |
check_xline(struct Client *client_p) |
286 |
{ |
287 |
const struct GecosItem *gecos = NULL; |
288 |
|
289 |
if (HasFlag(client_p, FLAGS_EXEMPTXLINE)) |
290 |
return false; |
291 |
|
292 |
if ((gecos = gecos_find(client_p->info, match))) |
293 |
{ |
294 |
sendto_realops_flags(UMODE_REJ, L_ALL, SEND_NOTICE, |
295 |
"X-line Rejecting [%s] [%s], user %s [%s]", |
296 |
client_p->info, gecos->reason, |
297 |
client_get_name(client_p, HIDE_IP), |
298 |
client_p->sockhost); |
299 |
|
300 |
++ServerStats.is_ref; |
301 |
exit_client(client_p, "Bad user info"); |
302 |
return true; |
303 |
} |
304 |
|
305 |
return false; |
306 |
} |
307 |
|
308 |
/*! \brief This function is called when both NICK and USER messages |
309 |
* have been accepted for the client, in whatever order. Only |
310 |
* after this, is the UID message propagated. |
311 |
* \param client_p Pointer to given client to introduce |
312 |
*/ |
313 |
void |
314 |
register_local_user(struct Client *client_p) |
315 |
{ |
316 |
const struct MaskItem *conf = NULL; |
317 |
|
318 |
assert(client_p == client_p->from); |
319 |
assert(client_p->connection->registration == 0); |
320 |
assert(MyConnect(client_p)); |
321 |
assert(IsUnknown(client_p)); |
322 |
|
323 |
if (ConfigGeneral.ping_cookie) |
324 |
{ |
325 |
if (!HasFlag(client_p, FLAGS_PINGSENT) && client_p->connection->random_ping == 0) |
326 |
{ |
327 |
do |
328 |
client_p->connection->random_ping = genrand_int32(); |
329 |
while (client_p->connection->random_ping == 0); |
330 |
|
331 |
sendto_one(client_p, "PING :%u", client_p->connection->random_ping); |
332 |
AddFlag(client_p, FLAGS_PINGSENT); |
333 |
return; |
334 |
} |
335 |
|
336 |
if (!HasFlag(client_p, FLAGS_PING_COOKIE)) |
337 |
return; |
338 |
} |
339 |
|
340 |
if (check_client(client_p) == 0) |
341 |
return; |
342 |
|
343 |
conf = client_p->connection->confs.head->data; |
344 |
|
345 |
if (!HasFlag(client_p, FLAGS_GOTID)) |
346 |
{ |
347 |
char username[USERLEN + 1] = ""; |
348 |
unsigned int i = 0; |
349 |
|
350 |
if (IsNeedIdentd(conf)) |
351 |
{ |
352 |
++ServerStats.is_ref; |
353 |
sendto_one_notice(client_p, &me, ":*** Notice -- You need to install " |
354 |
"identd to use this server"); |
355 |
exit_client(client_p, "Install identd"); |
356 |
return; |
357 |
} |
358 |
|
359 |
strlcpy(username, client_p->username, sizeof(username)); |
360 |
|
361 |
if (!IsNoTilde(conf)) |
362 |
client_p->username[i++] = '~'; |
363 |
|
364 |
for (const char *p = username; *p && i < USERLEN; ++p) |
365 |
client_p->username[i++] = *p; |
366 |
|
367 |
client_p->username[i] = '\0'; |
368 |
} |
369 |
|
370 |
/* Password check */ |
371 |
if (!EmptyString(conf->passwd)) |
372 |
{ |
373 |
if (match_conf_password(client_p->connection->password, conf) == false) |
374 |
{ |
375 |
++ServerStats.is_ref; |
376 |
|
377 |
sendto_one_numeric(client_p, &me, ERR_PASSWDMISMATCH); |
378 |
exit_client(client_p, "Bad Password"); |
379 |
return; |
380 |
} |
381 |
} |
382 |
|
383 |
/* |
384 |
* Don't free client_p->connection->password here - it can be required |
385 |
* by masked /stats I if there are auth {} blocks with need_password = no; |
386 |
* --adx |
387 |
*/ |
388 |
|
389 |
/* |
390 |
* Report if user has &^>= etc. and set flags as needed in client_p |
391 |
*/ |
392 |
report_and_set_user_flags(client_p, conf); |
393 |
|
394 |
if (IsDead(client_p)) |
395 |
return; |
396 |
|
397 |
/* |
398 |
* Limit clients - |
399 |
* We want to be able to have servers and F-line clients |
400 |
* connect, so save room for "buffer" connections. |
401 |
* Smaller servers may want to decrease this, and it should |
402 |
* probably be just a percentage of the MAXCLIENTS... |
403 |
* -Taner |
404 |
*/ |
405 |
if ((dlink_list_length(&local_client_list) >= GlobalSetOptions.maxclients + MAX_BUFFER) || |
406 |
(dlink_list_length(&local_client_list) >= GlobalSetOptions.maxclients && !HasFlag(client_p, FLAGS_NOLIMIT))) |
407 |
{ |
408 |
sendto_realops_flags(UMODE_FULL, L_ALL, SEND_NOTICE, |
409 |
"Too many clients, rejecting %s[%s].", |
410 |
client_p->name, client_p->host); |
411 |
++ServerStats.is_ref; |
412 |
exit_client(client_p, "Sorry, server is full - try later"); |
413 |
return; |
414 |
} |
415 |
|
416 |
if (valid_username(client_p->username, true) == false) |
417 |
{ |
418 |
char buf[IRCD_BUFSIZE] = ""; |
419 |
|
420 |
sendto_realops_flags(UMODE_REJ, L_ALL, SEND_NOTICE, |
421 |
"Invalid username: %s (%s@%s)", |
422 |
client_p->name, client_p->username, client_p->host); |
423 |
++ServerStats.is_ref; |
424 |
snprintf(buf, sizeof(buf), "Invalid username [%s]", client_p->username); |
425 |
exit_client(client_p, buf); |
426 |
return; |
427 |
} |
428 |
|
429 |
if (check_xline(client_p)) |
430 |
return; |
431 |
|
432 |
const char *id; |
433 |
while (hash_find_id((id = uid_get()))) |
434 |
; |
435 |
|
436 |
strlcpy(client_p->id, id, sizeof(client_p->id)); |
437 |
hash_add_id(client_p); |
438 |
|
439 |
sendto_realops_flags(UMODE_CCONN, L_ALL, SEND_NOTICE, |
440 |
"Client connecting: %s (%s@%s) [%s] {%s} [%s] <%s>", |
441 |
client_p->name, client_p->username, client_p->realhost, |
442 |
client_p->sockhost, |
443 |
get_client_class(&client_p->connection->confs), |
444 |
client_p->info, client_p->id); |
445 |
|
446 |
if (ConfigGeneral.invisible_on_connect) |
447 |
{ |
448 |
AddUMode(client_p, UMODE_INVISIBLE); |
449 |
++Count.invisi; |
450 |
} |
451 |
|
452 |
assert(client_p->servptr == &me); |
453 |
|
454 |
SetClient(client_p); |
455 |
client_p->connection->last_privmsg = event_base->time.sec_monotonic; |
456 |
|
457 |
dlinkAdd(client_p, &client_p->lnode, &client_p->servptr->serv->client_list); |
458 |
dlinkAdd(client_p, &client_p->node, &global_client_list); |
459 |
|
460 |
assert(dlinkFind(&unknown_list, client_p)); |
461 |
|
462 |
dlink_move_node(&client_p->connection->lclient_node, |
463 |
&unknown_list, &local_client_list); |
464 |
|
465 |
if (dlink_list_length(&local_client_list) > Count.max_loc) |
466 |
{ |
467 |
Count.max_loc = dlink_list_length(&local_client_list); |
468 |
|
469 |
if (!(Count.max_loc % 10)) |
470 |
sendto_realops_flags(UMODE_SERVNOTICE, L_ALL, SEND_NOTICE, |
471 |
"New maximum local client connections: %u", |
472 |
Count.max_loc); |
473 |
} |
474 |
|
475 |
if ((dlink_list_length(&local_client_list) + |
476 |
dlink_list_length(&local_server_list)) > Count.max_loc_con) |
477 |
Count.max_loc_con = dlink_list_length(&local_client_list) + |
478 |
dlink_list_length(&local_server_list); |
479 |
|
480 |
if (dlink_list_length(&global_client_list) > Count.max_tot) |
481 |
Count.max_tot = dlink_list_length(&global_client_list); |
482 |
++Count.totalrestartcount; |
483 |
|
484 |
user_welcome(client_p); |
485 |
|
486 |
introduce_client(client_p); |
487 |
} |
488 |
|
489 |
/* register_remote_user() |
490 |
* |
491 |
* inputs - client_p remote or directly connected client |
492 |
* - username to register as |
493 |
* - host name to register as |
494 |
* - server name |
495 |
* output - NONE |
496 |
* side effects - This function is called when a remote client |
497 |
* is introduced by a server. |
498 |
*/ |
499 |
void |
500 |
register_remote_user(struct Client *client_p) |
501 |
{ |
502 |
assert(client_p->servptr->from == client_p->from); |
503 |
|
504 |
/* |
505 |
* If the nick has been introduced by a services server, |
506 |
* make it a service as well. |
507 |
*/ |
508 |
if (HasFlag(client_p->servptr, FLAGS_SERVICE)) |
509 |
AddFlag(client_p, FLAGS_SERVICE); |
510 |
|
511 |
SetClient(client_p); |
512 |
dlinkAdd(client_p, &client_p->lnode, &client_p->servptr->serv->client_list); |
513 |
dlinkAdd(client_p, &client_p->node, &global_client_list); |
514 |
|
515 |
if (dlink_list_length(&global_client_list) > Count.max_tot) |
516 |
Count.max_tot = dlink_list_length(&global_client_list); |
517 |
|
518 |
if (HasFlag(client_p->servptr, FLAGS_EOB)) |
519 |
sendto_realops_flags(UMODE_FARCONNECT, L_ALL, SEND_NOTICE, |
520 |
"Client connecting at %s: %s (%s@%s) [%s] [%s] <%s>", |
521 |
client_p->servptr->name, |
522 |
client_p->name, client_p->username, client_p->realhost, |
523 |
client_p->sockhost, client_p->info, client_p->id); |
524 |
|
525 |
introduce_client(client_p); |
526 |
} |
527 |
|
528 |
/* valid_hostname() |
529 |
* |
530 |
* Inputs - pointer to hostname |
531 |
* Output - 1 if valid, 0 if not |
532 |
* Side effects - check hostname for validity |
533 |
* |
534 |
* NOTE: this doesn't allow a hostname to begin with a dot and |
535 |
* will not allow more dots than chars. |
536 |
*/ |
537 |
bool |
538 |
valid_hostname(const char *hostname) |
539 |
{ |
540 |
const char *p = hostname; |
541 |
|
542 |
assert(p); |
543 |
|
544 |
if (EmptyString(p) || *p == '.' || *p == ':') |
545 |
return false; |
546 |
|
547 |
for (; *p; ++p) |
548 |
if (!IsHostChar(*p)) |
549 |
return false; |
550 |
|
551 |
return p - hostname <= HOSTLEN; |
552 |
} |
553 |
|
554 |
/* valid_username() |
555 |
* |
556 |
* Inputs - pointer to user |
557 |
* Output - 1 if valid, 0 if not |
558 |
* Side effects - check username for validity |
559 |
* |
560 |
* Absolutely always reject any '*' '!' '?' '@' in an user name |
561 |
* reject any odd control characters names. |
562 |
* Allow '.' in username to allow for "first.last" |
563 |
* style of username |
564 |
*/ |
565 |
bool |
566 |
valid_username(const char *username, bool local) |
567 |
{ |
568 |
const char *p = username; |
569 |
|
570 |
assert(p); |
571 |
|
572 |
if (*p == '~') |
573 |
++p; |
574 |
|
575 |
/* |
576 |
* Reject usernames that don't start with an alphanum |
577 |
* i.e. reject jokers who have '-@somehost' or '.@somehost' |
578 |
* or "-hi-@somehost", "h-----@somehost" would still be accepted. |
579 |
*/ |
580 |
if (!IsAlNum(*p)) |
581 |
return false; |
582 |
|
583 |
if (local) |
584 |
{ |
585 |
unsigned int dots = 0; |
586 |
|
587 |
while (*++p) |
588 |
{ |
589 |
if (*p == '.' && ConfigGeneral.dots_in_ident) |
590 |
{ |
591 |
if (++dots > ConfigGeneral.dots_in_ident) |
592 |
return false; |
593 |
if (!IsUserChar(*(p + 1))) |
594 |
return false; |
595 |
} |
596 |
else if (!IsUserChar(*p)) |
597 |
return false; |
598 |
} |
599 |
} |
600 |
else |
601 |
{ |
602 |
while (*++p) |
603 |
if (!IsUserChar(*p)) |
604 |
return false; |
605 |
} |
606 |
|
607 |
return p - username <= USERLEN; |
608 |
} |
609 |
|
610 |
/* clean_nick_name() |
611 |
* |
612 |
* input - nickname |
613 |
* - whether it's a local nick (1) or remote (0) |
614 |
* output - none |
615 |
* side effects - walks through the nickname, returning 0 if erroneous |
616 |
*/ |
617 |
bool |
618 |
valid_nickname(const char *nickname, bool local) |
619 |
{ |
620 |
const char *p = nickname; |
621 |
|
622 |
assert(p); |
623 |
|
624 |
/* |
625 |
* Nicks can't start with a digit or - or be 0 length. |
626 |
*/ |
627 |
if (EmptyString(p) || *p == '-' || (IsDigit(*p) && local)) |
628 |
return false; |
629 |
|
630 |
for (; *p; ++p) |
631 |
if (!IsNickChar(*p)) |
632 |
return false; |
633 |
|
634 |
return p - nickname <= NICKLEN; |
635 |
} |
636 |
|
637 |
/*! \brief Builds a mode change string to buffer pointed by \a buf |
638 |
* \param client_p Pointer to client |
639 |
* \param dispatch Whether to send a MODE message to client_p |
640 |
* \param old Old user mode to compare against when building new mode buffer |
641 |
* \param buf Pointer to buffer to build string in |
642 |
*/ |
643 |
void |
644 |
send_umode(struct Client *client_p, bool dispatch, unsigned int old, char *buf) |
645 |
{ |
646 |
char *m = buf; |
647 |
int what = 0; |
648 |
|
649 |
/* |
650 |
* Build a string in umode_buf to represent the change in the user's |
651 |
* mode between the new (client_p->umodes) and 'old'. |
652 |
*/ |
653 |
for (const struct user_modes *tab = umode_tab; tab->c; ++tab) |
654 |
{ |
655 |
if ((tab->flag & old) && !HasUMode(client_p, tab->flag)) |
656 |
{ |
657 |
if (what == MODE_DEL) |
658 |
*m++ = tab->c; |
659 |
else |
660 |
{ |
661 |
what = MODE_DEL; |
662 |
*m++ = '-'; |
663 |
*m++ = tab->c; |
664 |
} |
665 |
} |
666 |
else if (!(tab->flag & old) && HasUMode(client_p, tab->flag)) |
667 |
{ |
668 |
if (what == MODE_ADD) |
669 |
*m++ = tab->c; |
670 |
else |
671 |
{ |
672 |
what = MODE_ADD; |
673 |
*m++ = '+'; |
674 |
*m++ = tab->c; |
675 |
} |
676 |
} |
677 |
} |
678 |
|
679 |
*m = '\0'; |
680 |
|
681 |
if (dispatch == true && *buf) |
682 |
sendto_one(client_p, ":%s!%s@%s MODE %s :%s", |
683 |
client_p->name, client_p->username, |
684 |
client_p->host, client_p->name, buf); |
685 |
} |
686 |
|
687 |
/* send_umode_out() |
688 |
* |
689 |
* inputs - |
690 |
* output - NONE |
691 |
* side effects - Only send ubuf out to servers that know about this client |
692 |
*/ |
693 |
void |
694 |
send_umode_out(struct Client *client_p, unsigned int old) |
695 |
{ |
696 |
char buf[UMODE_MAX_STR] = ""; |
697 |
|
698 |
send_umode(client_p, MyConnect(client_p), old, buf); |
699 |
|
700 |
if (buf[0]) |
701 |
sendto_server(client_p, 0, 0, ":%s MODE %s :%s", |
702 |
client_p->id, client_p->id, buf); |
703 |
} |
704 |
|
705 |
void |
706 |
user_set_hostmask(struct Client *client_p, const char *hostname) |
707 |
{ |
708 |
dlink_node *node; |
709 |
|
710 |
if (strcmp(client_p->host, hostname) == 0) |
711 |
return; |
712 |
|
713 |
if (ConfigGeneral.cycle_on_host_change) |
714 |
sendto_common_channels_local(client_p, false, 0, CAP_CHGHOST, ":%s!%s@%s QUIT :Changing hostname", |
715 |
client_p->name, client_p->username, client_p->host); |
716 |
|
717 |
sendto_common_channels_local(client_p, true, CAP_CHGHOST, 0, ":%s!%s@%s CHGHOST %s %s", |
718 |
client_p->name, client_p->username, |
719 |
client_p->host, client_p->username, hostname); |
720 |
|
721 |
strlcpy(client_p->host, hostname, sizeof(client_p->host)); |
722 |
|
723 |
if (MyConnect(client_p)) |
724 |
{ |
725 |
sendto_one_numeric(client_p, &me, RPL_VISIBLEHOST, client_p->host); |
726 |
clear_ban_cache_list(&client_p->channel); |
727 |
} |
728 |
|
729 |
if (ConfigGeneral.cycle_on_host_change == 0) |
730 |
return; |
731 |
|
732 |
DLINK_FOREACH(node, client_p->channel.head) |
733 |
{ |
734 |
char modebuf[CMEMBER_STATUS_FLAGS_LEN + 1]; |
735 |
char nickbuf[CMEMBER_STATUS_FLAGS_LEN * NICKLEN + CMEMBER_STATUS_FLAGS_LEN] = ""; |
736 |
char *p = modebuf; |
737 |
int len = 0; |
738 |
const struct Membership *member = node->data; |
739 |
|
740 |
if (has_member_flags(member, CHFL_CHANOP)) |
741 |
{ |
742 |
*p++ = 'o'; |
743 |
len += snprintf(nickbuf + len, sizeof(nickbuf) - len, len ? " %s" : "%s", client_p->name); |
744 |
} |
745 |
|
746 |
if (has_member_flags(member, CHFL_HALFOP)) |
747 |
{ |
748 |
*p++ = 'h'; |
749 |
len += snprintf(nickbuf + len, sizeof(nickbuf) - len, len ? " %s" : "%s", client_p->name); |
750 |
} |
751 |
|
752 |
if (has_member_flags(member, CHFL_VOICE)) |
753 |
{ |
754 |
*p++ = 'v'; |
755 |
len += snprintf(nickbuf + len, sizeof(nickbuf) - len, len ? " %s" : "%s", client_p->name); |
756 |
} |
757 |
|
758 |
*p = '\0'; |
759 |
|
760 |
sendto_channel_local(client_p, member->chptr, 0, CAP_EXTENDED_JOIN, CAP_CHGHOST, ":%s!%s@%s JOIN %s %s :%s", |
761 |
client_p->name, client_p->username, |
762 |
client_p->host, member->chptr->name, |
763 |
client_p->account, client_p->info); |
764 |
sendto_channel_local(client_p, member->chptr, 0, 0, CAP_EXTENDED_JOIN | CAP_CHGHOST, ":%s!%s@%s JOIN :%s", |
765 |
client_p->name, client_p->username, |
766 |
client_p->host, member->chptr->name); |
767 |
|
768 |
if (nickbuf[0]) |
769 |
sendto_channel_local(client_p, member->chptr, 0, 0, CAP_CHGHOST, ":%s MODE %s +%s %s", |
770 |
client_p->servptr->name, member->chptr->name, |
771 |
modebuf, nickbuf); |
772 |
} |
773 |
|
774 |
if (client_p->away[0]) |
775 |
sendto_common_channels_local(client_p, false, CAP_AWAY_NOTIFY, CAP_CHGHOST, |
776 |
":%s!%s@%s AWAY :%s", |
777 |
client_p->name, client_p->username, |
778 |
client_p->host, client_p->away); |
779 |
} |