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/* |
2 |
* ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd) |
3 |
* |
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* Copyright (c) 1997-2015 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 "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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|
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static char umode_buffer[IRCD_BUFSIZE]; |
54 |
|
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const struct user_modes *umode_map[256]; |
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const struct user_modes umode_tab[] = |
57 |
{ |
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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'; |
101 |
} |
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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 *source_p) |
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{ |
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if (!ConfigServerHide.hide_servers || HasUMode(source_p, UMODE_OPER)) |
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sendto_one_numeric(source_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(source_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(source_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(source_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(source_p, &me, RPL_LUSERCHANNELS, dlink_list_length(&channel_list)); |
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|
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if (!ConfigServerHide.hide_servers || HasUMode(source_p, UMODE_OPER)) |
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{ |
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sendto_one_numeric(source_p, &me, RPL_LUSERME, Count.local, Count.myserver); |
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sendto_one_numeric(source_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(source_p, &me, RPL_LUSERME, Count.total, 0); |
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sendto_one_numeric(source_p, &me, RPL_LOCALUSERS, Count.total, Count.max_tot); |
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} |
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|
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sendto_one_numeric(source_p, &me, RPL_GLOBALUSERS, Count.total, Count.max_tot); |
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|
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if (!ConfigServerHide.hide_servers || HasUMode(source_p, UMODE_OPER)) |
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sendto_one_numeric(source_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; |
150 |
} |
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|
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/* report_and_set_user_flags() |
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* |
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* inputs - pointer to source_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 *source_p, const struct MaskItem *conf) |
162 |
{ |
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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(source_p, &me, ":*** Spoofing your IP. Congrats."); |
166 |
|
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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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SetExemptKline(source_p); |
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sendto_one_notice(source_p, &me, ":*** You are exempt from K/D lines. Congrats."); |
172 |
} |
173 |
|
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if (IsConfExemptXline(conf)) |
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{ |
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SetExemptXline(source_p); |
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sendto_one_notice(source_p, &me, ":*** You are exempt from X lines. Congrats."); |
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} |
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|
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if (IsConfExemptResv(conf)) |
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{ |
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SetExemptResv(source_p); |
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sendto_one_notice(source_p, &me, ":*** You are exempt from resvs. Congrats."); |
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} |
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|
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/* If this user is exempt from user limits set it "F lined" */ |
187 |
if (IsConfExemptLimits(conf)) |
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{ |
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SetExemptLimits(source_p); |
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sendto_one_notice(source_p, &me, ":*** You are exempt from user limits. Congrats."); |
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} |
192 |
|
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if (IsConfCanFlood(conf)) |
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{ |
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SetCanFlood(source_p); |
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sendto_one_notice(source_p, &me, ":*** You are exempt from flood " |
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"protection, aren't you fearsome."); |
198 |
} |
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} |
200 |
|
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/* introduce_client() |
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* |
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* inputs - source_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 |
207 |
* from a remote connect. |
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*/ |
209 |
static void |
210 |
introduce_client(struct Client *source_p) |
211 |
{ |
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dlink_node *node = NULL; |
213 |
char ubuf[IRCD_BUFSIZE] = ""; |
214 |
|
215 |
if (MyClient(source_p)) |
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send_umode(source_p, source_p, 0, ubuf); |
217 |
else |
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send_umode(NULL, source_p, 0, ubuf); |
219 |
|
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watch_check_hash(source_p, RPL_LOGON); |
221 |
|
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if (ubuf[0] == '\0') |
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{ |
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ubuf[0] = '+'; |
225 |
ubuf[1] = '\0'; |
226 |
} |
227 |
|
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DLINK_FOREACH(node, local_server_list.head) |
229 |
{ |
230 |
struct Client *server = node->data; |
231 |
|
232 |
if (server == source_p->from) |
233 |
continue; |
234 |
|
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if (IsCapable(server, CAP_SVS)) |
236 |
sendto_one(server, ":%s UID %s %u %lu %s %s %s %s %s %s :%s", |
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source_p->servptr->id, |
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source_p->name, source_p->hopcount+1, |
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(unsigned long)source_p->tsinfo, |
240 |
ubuf, source_p->username, source_p->host, |
241 |
source_p->sockhost, source_p->id, |
242 |
source_p->account, |
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source_p->info); |
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else |
245 |
sendto_one(server, ":%s UID %s %u %lu %s %s %s %s %s :%s", |
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source_p->servptr->id, |
247 |
source_p->name, source_p->hopcount+1, |
248 |
(unsigned long)source_p->tsinfo, |
249 |
ubuf, source_p->username, source_p->host, |
250 |
source_p->sockhost, source_p->id, source_p->info); |
251 |
|
252 |
if (!EmptyString(source_p->certfp)) |
253 |
sendto_one(server, ":%s CERTFP %s", source_p->id, source_p->certfp); |
254 |
} |
255 |
} |
256 |
|
257 |
/* user_welcome() |
258 |
* |
259 |
* inputs - client pointer to client to welcome |
260 |
* output - NONE |
261 |
* side effects - |
262 |
*/ |
263 |
static void |
264 |
user_welcome(struct Client *source_p) |
265 |
{ |
266 |
#if defined(__TIME__) && defined(__DATE__) |
267 |
static const char built_date[] = __DATE__ " at " __TIME__; |
268 |
#else |
269 |
static const char built_date[] = "unknown"; |
270 |
#endif |
271 |
|
272 |
#ifdef HAVE_LIBCRYPTO |
273 |
if (HasFlag(source_p, FLAGS_SSL)) |
274 |
{ |
275 |
AddUMode(source_p, UMODE_SSL); |
276 |
sendto_one_notice(source_p, &me, ":*** Connected securely via %s", |
277 |
ssl_get_cipher(source_p->connection->fd.ssl)); |
278 |
} |
279 |
#endif |
280 |
|
281 |
sendto_one_numeric(source_p, &me, RPL_WELCOME, ConfigServerInfo.network_name, |
282 |
source_p->name); |
283 |
sendto_one_numeric(source_p, &me, RPL_YOURHOST, |
284 |
get_listener_name(source_p->connection->listener), ircd_version); |
285 |
sendto_one_numeric(source_p, &me, RPL_CREATED, built_date); |
286 |
sendto_one_numeric(source_p, &me, RPL_MYINFO, me.name, ircd_version, umode_buffer); |
287 |
|
288 |
isupport_show(source_p); |
289 |
show_lusers(source_p); |
290 |
motd_signon(source_p); |
291 |
} |
292 |
|
293 |
/* check_xline() |
294 |
* |
295 |
* inputs - pointer to client to test |
296 |
* outupt - 1 if exiting 0 if ok |
297 |
* side effects - |
298 |
*/ |
299 |
static int |
300 |
check_xline(struct Client *source_p) |
301 |
{ |
302 |
struct MaskItem *conf = NULL; |
303 |
|
304 |
if (IsExemptXline(source_p)) |
305 |
return 0; |
306 |
|
307 |
if ((conf = find_matching_name_conf(CONF_XLINE, source_p->info, NULL, NULL, 0))) |
308 |
{ |
309 |
++conf->count; |
310 |
sendto_realops_flags(UMODE_REJ, L_ALL, SEND_NOTICE, |
311 |
"X-line Rejecting [%s] [%s], user %s [%s]", |
312 |
source_p->info, conf->reason, |
313 |
get_client_name(source_p, HIDE_IP), |
314 |
source_p->sockhost); |
315 |
|
316 |
++ServerStats.is_ref; |
317 |
exit_client(source_p, "Bad user info"); |
318 |
return 1; |
319 |
} |
320 |
|
321 |
return 0; |
322 |
} |
323 |
|
324 |
/*! \brief This function is called when both NICK and USER messages |
325 |
* have been accepted for the client, in whatever order. Only |
326 |
* after this, is the UID message propagated. |
327 |
* \param source_p Pointer to given client to introduce |
328 |
*/ |
329 |
void |
330 |
register_local_user(struct Client *source_p) |
331 |
{ |
332 |
const char *id = NULL; |
333 |
const struct MaskItem *conf = NULL; |
334 |
|
335 |
assert(source_p == source_p->from); |
336 |
assert(MyConnect(source_p)); |
337 |
assert(IsUnknown(source_p)); |
338 |
assert(!source_p->connection->registration); |
339 |
|
340 |
if (ConfigGeneral.ping_cookie) |
341 |
{ |
342 |
if (!IsPingSent(source_p) && !source_p->connection->random_ping) |
343 |
{ |
344 |
do |
345 |
source_p->connection->random_ping = genrand_int32(); |
346 |
while (!source_p->connection->random_ping); |
347 |
|
348 |
sendto_one(source_p, "PING :%u", source_p->connection->random_ping); |
349 |
SetPingSent(source_p); |
350 |
return; |
351 |
} |
352 |
|
353 |
if (!HasPingCookie(source_p)) |
354 |
return; |
355 |
} |
356 |
|
357 |
source_p->connection->last_privmsg = CurrentTime; |
358 |
/* Straight up the maximum rate of flooding... */ |
359 |
source_p->connection->allow_read = MAX_FLOOD_BURST; |
360 |
|
361 |
if (!check_client(source_p)) |
362 |
return; |
363 |
|
364 |
if (!valid_hostname(source_p->host)) |
365 |
{ |
366 |
sendto_one_notice(source_p, &me, ":*** Notice -- You have an illegal " |
367 |
"character in your hostname"); |
368 |
strlcpy(source_p->host, source_p->sockhost, sizeof(source_p->host)); |
369 |
} |
370 |
|
371 |
conf = source_p->connection->confs.head->data; |
372 |
|
373 |
if (!IsGotId(source_p)) |
374 |
{ |
375 |
char username[USERLEN + 1] = ""; |
376 |
const char *p = username; |
377 |
unsigned int i = 0; |
378 |
|
379 |
if (IsNeedIdentd(conf)) |
380 |
{ |
381 |
++ServerStats.is_ref; |
382 |
sendto_one_notice(source_p, &me, ":*** Notice -- You need to install " |
383 |
"identd to use this server"); |
384 |
exit_client(source_p, "Install identd"); |
385 |
return; |
386 |
} |
387 |
|
388 |
strlcpy(username, source_p->username, sizeof(username)); |
389 |
|
390 |
if (!IsNoTilde(conf)) |
391 |
source_p->username[i++] = '~'; |
392 |
|
393 |
for (; *p && i < USERLEN; ++p) |
394 |
source_p->username[i++] = *p; |
395 |
|
396 |
source_p->username[i] = '\0'; |
397 |
} |
398 |
|
399 |
/* Password check */ |
400 |
if (!EmptyString(conf->passwd)) |
401 |
{ |
402 |
if (!match_conf_password(source_p->connection->password, conf)) |
403 |
{ |
404 |
++ServerStats.is_ref; |
405 |
|
406 |
sendto_one_numeric(source_p, &me, ERR_PASSWDMISMATCH); |
407 |
exit_client(source_p, "Bad Password"); |
408 |
return; |
409 |
} |
410 |
} |
411 |
|
412 |
/* |
413 |
* Don't free source_p->connection->password here - it can be required |
414 |
* by masked /stats I if there are auth {} blocks with need_password = no; |
415 |
* --adx |
416 |
*/ |
417 |
|
418 |
/* |
419 |
* Report if user has &^>= etc. and set flags as needed in source_p |
420 |
*/ |
421 |
report_and_set_user_flags(source_p, conf); |
422 |
|
423 |
if (IsDead(source_p)) |
424 |
return; |
425 |
|
426 |
/* |
427 |
* Limit clients - |
428 |
* We want to be able to have servers and F-line clients |
429 |
* connect, so save room for "buffer" connections. |
430 |
* Smaller servers may want to decrease this, and it should |
431 |
* probably be just a percentage of the MAXCLIENTS... |
432 |
* -Taner |
433 |
*/ |
434 |
if ((Count.local >= GlobalSetOptions.maxclients + MAX_BUFFER) || |
435 |
(Count.local >= GlobalSetOptions.maxclients && !IsExemptLimits(source_p))) |
436 |
{ |
437 |
sendto_realops_flags(UMODE_FULL, L_ALL, SEND_NOTICE, |
438 |
"Too many clients, rejecting %s[%s].", |
439 |
source_p->name, source_p->host); |
440 |
++ServerStats.is_ref; |
441 |
exit_client(source_p, "Sorry, server is full - try later"); |
442 |
return; |
443 |
} |
444 |
|
445 |
if (!valid_username(source_p->username, 1)) |
446 |
{ |
447 |
char buf[IRCD_BUFSIZE] = ""; |
448 |
|
449 |
sendto_realops_flags(UMODE_REJ, L_ALL, SEND_NOTICE, |
450 |
"Invalid username: %s (%s@%s)", |
451 |
source_p->name, source_p->username, source_p->host); |
452 |
++ServerStats.is_ref; |
453 |
snprintf(buf, sizeof(buf), "Invalid username [%s]", source_p->username); |
454 |
exit_client(source_p, buf); |
455 |
return; |
456 |
} |
457 |
|
458 |
if (check_xline(source_p)) |
459 |
return; |
460 |
|
461 |
while (hash_find_id((id = uid_get()))) |
462 |
; |
463 |
|
464 |
strlcpy(source_p->id, id, sizeof(source_p->id)); |
465 |
hash_add_id(source_p); |
466 |
|
467 |
sendto_realops_flags(UMODE_CCONN, L_ALL, SEND_NOTICE, |
468 |
"Client connecting: %s (%s@%s) [%s] {%s} [%s] <%s>", |
469 |
source_p->name, source_p->username, source_p->host, |
470 |
source_p->sockhost, |
471 |
get_client_class(&source_p->connection->confs), |
472 |
source_p->info, source_p->id); |
473 |
|
474 |
if (ConfigGeneral.invisible_on_connect) |
475 |
{ |
476 |
AddUMode(source_p, UMODE_INVISIBLE); |
477 |
++Count.invisi; |
478 |
} |
479 |
|
480 |
if (++Count.local > Count.max_loc) |
481 |
{ |
482 |
Count.max_loc = Count.local; |
483 |
|
484 |
if (!(Count.max_loc % 10)) |
485 |
sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE, |
486 |
"New maximum local client connections: %u", |
487 |
Count.max_loc); |
488 |
} |
489 |
|
490 |
if (++Count.total > Count.max_tot) |
491 |
Count.max_tot = Count.total; |
492 |
++Count.totalrestartcount; |
493 |
|
494 |
assert(source_p->servptr == &me); |
495 |
SetClient(source_p); |
496 |
dlinkAdd(source_p, &source_p->lnode, &source_p->servptr->serv->client_list); |
497 |
dlinkAdd(source_p, &source_p->node, &global_client_list); |
498 |
|
499 |
assert(dlinkFind(&unknown_list, source_p)); |
500 |
|
501 |
dlink_move_node(&source_p->connection->lclient_node, |
502 |
&unknown_list, &local_client_list); |
503 |
|
504 |
user_welcome(source_p); |
505 |
add_user_host(source_p->username, source_p->host, 0); |
506 |
SetUserHost(source_p); |
507 |
|
508 |
introduce_client(source_p); |
509 |
} |
510 |
|
511 |
/* register_remote_user() |
512 |
* |
513 |
* inputs - source_p remote or directly connected client |
514 |
* - username to register as |
515 |
* - host name to register as |
516 |
* - server name |
517 |
* output - NONE |
518 |
* side effects - This function is called when a remote client |
519 |
* is introduced by a server. |
520 |
*/ |
521 |
void |
522 |
register_remote_user(struct Client *source_p) |
523 |
{ |
524 |
const struct Client *target_p = NULL; |
525 |
|
526 |
if ((target_p = source_p->servptr) && target_p->from != source_p->from) |
527 |
{ |
528 |
sendto_realops_flags(UMODE_DEBUG, L_ALL, SEND_NOTICE, |
529 |
"Bad User [%s] :%s USER %s@%s %s, != %s[%s]", |
530 |
source_p->from->name, source_p->name, source_p->username, |
531 |
source_p->host, source_p->servptr->name, |
532 |
target_p->name, target_p->from->name); |
533 |
sendto_one(source_p->from, |
534 |
":%s KILL %s :%s (UID from wrong direction (%s != %s))", |
535 |
me.id, source_p->id, me.name, source_p->servptr->name, |
536 |
target_p->from->name); |
537 |
|
538 |
AddFlag(source_p, FLAGS_KILLED); |
539 |
exit_client(source_p, "UID server wrong direction"); |
540 |
return; |
541 |
} |
542 |
|
543 |
/* |
544 |
* If the nick has been introduced by a services server, |
545 |
* make it a service as well. |
546 |
*/ |
547 |
if (HasFlag(source_p->servptr, FLAGS_SERVICE)) |
548 |
AddFlag(source_p, FLAGS_SERVICE); |
549 |
|
550 |
if (++Count.total > Count.max_tot) |
551 |
Count.max_tot = Count.total; |
552 |
|
553 |
SetClient(source_p); |
554 |
dlinkAdd(source_p, &source_p->lnode, &source_p->servptr->serv->client_list); |
555 |
dlinkAdd(source_p, &source_p->node, &global_client_list); |
556 |
add_user_host(source_p->username, source_p->host, 1); |
557 |
SetUserHost(source_p); |
558 |
|
559 |
if (HasFlag(source_p->servptr, FLAGS_EOB)) |
560 |
sendto_realops_flags(UMODE_FARCONNECT, L_ALL, SEND_NOTICE, |
561 |
"Client connecting at %s: %s (%s@%s) [%s] [%s] <%s>", |
562 |
source_p->servptr->name, |
563 |
source_p->name, source_p->username, source_p->host, |
564 |
source_p->sockhost, source_p->info, source_p->id); |
565 |
|
566 |
introduce_client(source_p); |
567 |
} |
568 |
|
569 |
/* valid_hostname() |
570 |
* |
571 |
* Inputs - pointer to hostname |
572 |
* Output - 1 if valid, 0 if not |
573 |
* Side effects - check hostname for validity |
574 |
* |
575 |
* NOTE: this doesn't allow a hostname to begin with a dot and |
576 |
* will not allow more dots than chars. |
577 |
*/ |
578 |
int |
579 |
valid_hostname(const char *hostname) |
580 |
{ |
581 |
const char *p = hostname; |
582 |
|
583 |
assert(p); |
584 |
|
585 |
if (EmptyString(p) || *p == '.' || *p == ':') |
586 |
return 0; |
587 |
|
588 |
for (; *p; ++p) |
589 |
if (!IsHostChar(*p)) |
590 |
return 0; |
591 |
|
592 |
return p - hostname <= HOSTLEN; |
593 |
} |
594 |
|
595 |
/* valid_username() |
596 |
* |
597 |
* Inputs - pointer to user |
598 |
* Output - 1 if valid, 0 if not |
599 |
* Side effects - check username for validity |
600 |
* |
601 |
* Absolutely always reject any '*' '!' '?' '@' in an user name |
602 |
* reject any odd control characters names. |
603 |
* Allow '.' in username to allow for "first.last" |
604 |
* style of username |
605 |
*/ |
606 |
int |
607 |
valid_username(const char *username, const int local) |
608 |
{ |
609 |
unsigned int dots = 0; |
610 |
const char *p = username; |
611 |
|
612 |
assert(p); |
613 |
|
614 |
if (*p == '~') |
615 |
++p; |
616 |
|
617 |
/* |
618 |
* Reject usernames that don't start with an alphanum |
619 |
* i.e. reject jokers who have '-@somehost' or '.@somehost' |
620 |
* or "-hi-@somehost", "h-----@somehost" would still be accepted. |
621 |
*/ |
622 |
if (!IsAlNum(*p)) |
623 |
return 0; |
624 |
|
625 |
if (local) |
626 |
{ |
627 |
while (*++p) |
628 |
{ |
629 |
if (*p == '.' && ConfigGeneral.dots_in_ident) |
630 |
{ |
631 |
if (++dots > ConfigGeneral.dots_in_ident) |
632 |
return 0; |
633 |
if (!IsUserChar(*(p + 1))) |
634 |
return 0; |
635 |
} |
636 |
else if (!IsUserChar(*p)) |
637 |
return 0; |
638 |
} |
639 |
} |
640 |
else |
641 |
{ |
642 |
while (*++p) |
643 |
if (!IsUserChar(*p)) |
644 |
return 0; |
645 |
} |
646 |
|
647 |
return p - username <= USERLEN; |
648 |
} |
649 |
|
650 |
/* clean_nick_name() |
651 |
* |
652 |
* input - nickname |
653 |
* - whether it's a local nick (1) or remote (0) |
654 |
* output - none |
655 |
* side effects - walks through the nickname, returning 0 if erroneous |
656 |
*/ |
657 |
int |
658 |
valid_nickname(const char *nickname, const int local) |
659 |
{ |
660 |
const char *p = nickname; |
661 |
|
662 |
assert(p); |
663 |
|
664 |
/* |
665 |
* Nicks can't start with a digit or - or be 0 length. |
666 |
*/ |
667 |
if (EmptyString(p) || *p == '-' || (IsDigit(*p) && local)) |
668 |
return 0; |
669 |
|
670 |
for (; *p; ++p) |
671 |
if (!IsNickChar(*p)) |
672 |
return 0; |
673 |
|
674 |
return p - nickname <= NICKLEN; |
675 |
} |
676 |
|
677 |
/* send_umode() |
678 |
* send the MODE string for user (user) to connection client_p |
679 |
* -avalon |
680 |
* |
681 |
* inputs - client_p |
682 |
* - source_p |
683 |
* - int old |
684 |
* - sendmask mask of modes to send |
685 |
* - suplied umode_buf |
686 |
* output - NONE |
687 |
*/ |
688 |
void |
689 |
send_umode(struct Client *client_p, struct Client *source_p, |
690 |
unsigned int old, char *umode_buf) |
691 |
{ |
692 |
char *m = umode_buf; |
693 |
int what = 0; |
694 |
|
695 |
/* |
696 |
* Build a string in umode_buf to represent the change in the user's |
697 |
* mode between the new (source_p->umodes) and 'old'. |
698 |
*/ |
699 |
for (const struct user_modes *tab = umode_tab; tab->c; ++tab) |
700 |
{ |
701 |
if ((tab->flag & old) && !HasUMode(source_p, tab->flag)) |
702 |
{ |
703 |
if (what == MODE_DEL) |
704 |
*m++ = tab->c; |
705 |
else |
706 |
{ |
707 |
what = MODE_DEL; |
708 |
*m++ = '-'; |
709 |
*m++ = tab->c; |
710 |
} |
711 |
} |
712 |
else if (!(tab->flag & old) && HasUMode(source_p, tab->flag)) |
713 |
{ |
714 |
if (what == MODE_ADD) |
715 |
*m++ = tab->c; |
716 |
else |
717 |
{ |
718 |
what = MODE_ADD; |
719 |
*m++ = '+'; |
720 |
*m++ = tab->c; |
721 |
} |
722 |
} |
723 |
} |
724 |
|
725 |
*m = '\0'; |
726 |
|
727 |
if (*umode_buf && client_p) |
728 |
sendto_one(client_p, ":%s!%s@%s MODE %s :%s", |
729 |
client_p->name, client_p->username, |
730 |
client_p->host, client_p->name, umode_buf); |
731 |
} |
732 |
|
733 |
/* send_umode_out() |
734 |
* |
735 |
* inputs - |
736 |
* output - NONE |
737 |
* side effects - Only send ubuf out to servers that know about this client |
738 |
*/ |
739 |
void |
740 |
send_umode_out(struct Client *source_p, unsigned int old) |
741 |
{ |
742 |
char buf[IRCD_BUFSIZE] = ""; |
743 |
|
744 |
send_umode(MyClient(source_p) ? source_p : NULL, source_p, old, buf); |
745 |
|
746 |
if (buf[0]) |
747 |
sendto_server(source_p, 0, 0, ":%s MODE %s :%s", |
748 |
source_p->id, source_p->id, buf); |
749 |
} |
750 |
|
751 |
void |
752 |
user_set_hostmask(struct Client *target_p, const char *hostname, const int what) |
753 |
{ |
754 |
dlink_node *node = NULL; |
755 |
|
756 |
if (!strcmp(target_p->host, hostname)) |
757 |
return; |
758 |
|
759 |
switch (what) |
760 |
{ |
761 |
case MODE_ADD: |
762 |
AddUMode(target_p, UMODE_HIDDENHOST); |
763 |
break; |
764 |
case MODE_DEL: |
765 |
DelUMode(target_p, UMODE_HIDDENHOST); |
766 |
break; |
767 |
default: return; |
768 |
} |
769 |
|
770 |
if (ConfigGeneral.cycle_on_host_change) |
771 |
sendto_common_channels_local(target_p, 0, 0, ":%s!%s@%s QUIT :Changing hostname", |
772 |
target_p->name, target_p->username, target_p->host); |
773 |
|
774 |
if (IsUserHostIp(target_p)) |
775 |
delete_user_host(target_p->username, target_p->host, !MyConnect(target_p)); |
776 |
|
777 |
strlcpy(target_p->host, hostname, sizeof(target_p->host)); |
778 |
|
779 |
add_user_host(target_p->username, target_p->host, !MyConnect(target_p)); |
780 |
SetUserHost(target_p); |
781 |
|
782 |
if (MyClient(target_p)) |
783 |
{ |
784 |
sendto_one_numeric(target_p, &me, RPL_VISIBLEHOST, target_p->host); |
785 |
clear_ban_cache_client(target_p); |
786 |
} |
787 |
|
788 |
if (!ConfigGeneral.cycle_on_host_change) |
789 |
return; |
790 |
|
791 |
DLINK_FOREACH(node, target_p->channel.head) |
792 |
{ |
793 |
char modebuf[4], nickbuf[NICKLEN * 3 + 3] = ""; |
794 |
char *p = modebuf; |
795 |
int len = 0; |
796 |
const struct Membership *member = node->data; |
797 |
|
798 |
if (has_member_flags(member, CHFL_CHANOP)) |
799 |
{ |
800 |
*p++ = 'o'; |
801 |
len += snprintf(nickbuf + len, sizeof(nickbuf) - len, len ? " %s" : "%s", target_p->name); |
802 |
} |
803 |
|
804 |
if (has_member_flags(member, CHFL_HALFOP)) |
805 |
{ |
806 |
*p++ = 'h'; |
807 |
len += snprintf(nickbuf + len, sizeof(nickbuf) - len, len ? " %s" : "%s", target_p->name); |
808 |
} |
809 |
|
810 |
if (has_member_flags(member, CHFL_VOICE)) |
811 |
{ |
812 |
*p++ = 'v'; |
813 |
len += snprintf(nickbuf + len, sizeof(nickbuf) - len, len ? " %s" : "%s", target_p->name); |
814 |
} |
815 |
|
816 |
*p = '\0'; |
817 |
|
818 |
|
819 |
sendto_channel_local_butone(target_p, CAP_EXTENDED_JOIN, 0, member->chptr, ":%s!%s@%s JOIN %s %s :%s", |
820 |
target_p->name, target_p->username, |
821 |
target_p->host, member->chptr->name, |
822 |
(!IsDigit(target_p->account[0]) && target_p->account[0] != '*') ? target_p->account : "*", |
823 |
target_p->info); |
824 |
sendto_channel_local_butone(target_p, 0, CAP_EXTENDED_JOIN, member->chptr, ":%s!%s@%s JOIN :%s", |
825 |
target_p->name, target_p->username, |
826 |
target_p->host, member->chptr->name); |
827 |
|
828 |
if (nickbuf[0]) |
829 |
sendto_channel_local_butone(target_p, 0, 0, member->chptr, ":%s MODE %s +%s %s", |
830 |
target_p->servptr->name, member->chptr->name, |
831 |
modebuf, nickbuf); |
832 |
|
833 |
} |
834 |
|
835 |
if (target_p->away[0]) |
836 |
sendto_common_channels_local(target_p, 0, CAP_AWAY_NOTIFY, |
837 |
":%s!%s@%s AWAY :%s", |
838 |
target_p->name, target_p->username, |
839 |
target_p->host, target_p->away); |
840 |
} |
841 |
|
842 |
/*! \brief Blindly opers up given source_p, using conf info. |
843 |
* All checks on passwords have already been done. |
844 |
* \param source_p Pointer to given client to oper |
845 |
*/ |
846 |
void |
847 |
user_oper_up(struct Client *source_p) |
848 |
{ |
849 |
const unsigned int old = source_p->umodes; |
850 |
const struct MaskItem *const conf = source_p->connection->confs.head->data; |
851 |
|
852 |
++Count.oper; |
853 |
SetOper(source_p); |
854 |
|
855 |
if (conf->modes) |
856 |
AddUMode(source_p, conf->modes); |
857 |
else if (ConfigGeneral.oper_umodes) |
858 |
AddUMode(source_p, ConfigGeneral.oper_umodes); |
859 |
|
860 |
if (!(old & UMODE_INVISIBLE) && HasUMode(source_p, UMODE_INVISIBLE)) |
861 |
++Count.invisi; |
862 |
if ((old & UMODE_INVISIBLE) && !HasUMode(source_p, UMODE_INVISIBLE)) |
863 |
--Count.invisi; |
864 |
|
865 |
assert(dlinkFind(&oper_list, source_p) == NULL); |
866 |
dlinkAdd(source_p, make_dlink_node(), &oper_list); |
867 |
|
868 |
AddOFlag(source_p, conf->port); |
869 |
|
870 |
if (HasOFlag(source_p, OPER_FLAG_ADMIN)) |
871 |
AddUMode(source_p, UMODE_ADMIN); |
872 |
|
873 |
if (!EmptyString(conf->whois)) |
874 |
{ |
875 |
client_attach_svstag(source_p, RPL_WHOISOPERATOR, "+", conf->whois); |
876 |
sendto_server(source_p, 0, 0, ":%s SVSTAG %s %lu %u + :%s", |
877 |
me.id, source_p->id, (unsigned long)source_p->tsinfo, |
878 |
RPL_WHOISOPERATOR, conf->whois); |
879 |
} |
880 |
|
881 |
sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE, "%s is now an operator", |
882 |
get_oper_name(source_p)); |
883 |
sendto_server(NULL, 0, 0, ":%s GLOBOPS :%s is now an operator", |
884 |
me.id, get_oper_name(source_p)); |
885 |
send_umode_out(source_p, old); |
886 |
sendto_one_numeric(source_p, &me, RPL_YOUREOPER); |
887 |
} |