X-Git-Url: http://git.pk910.de/?p=ircu2.10.12-pk.git;a=blobdiff_plain;f=ircd%2Fm_clearmode.c;fp=ircd%2Fm_clearmode.c;h=81392da469942342c67b2c07f85302629874fd7f;hp=0000000000000000000000000000000000000000;hb=0400a5a6479398d82526785c18c0df8bc8b92dce;hpb=d17e10da972ce5776c60b4c317267c6abe0e1ead diff --git a/ircd/m_clearmode.c b/ircd/m_clearmode.c new file mode 100644 index 0000000..81392da --- /dev/null +++ b/ircd/m_clearmode.c @@ -0,0 +1,313 @@ +/* + * IRC - Internet Relay Chat, ircd/m_clearmode.c + * Copyright (C) 1990 Jarkko Oikarinen and + * University of Oulu, Computing Center + * Copyright (C) 2000 Kevin L. Mitchell + * + * See file AUTHORS in IRC package for additional names of + * the programmers. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 1, or (at your option) + * any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + * $Id$ + */ + +/* + * m_functions execute protocol messages on this server: + * + * cptr is always NON-NULL, pointing to a *LOCAL* client + * structure (with an open socket connected!). This + * identifies the physical socket where the message + * originated (or which caused the m_function to be + * executed--some m_functions may call others...). + * + * sptr is the source of the message, defined by the + * prefix part of the message if present. If not + * or prefix not found, then sptr==cptr. + * + * (!IsServer(cptr)) => (cptr == sptr), because + * prefixes are taken *only* from servers... + * + * (IsServer(cptr)) + * (sptr == cptr) => the message didn't + * have the prefix. + * + * (sptr != cptr && IsServer(sptr) means + * the prefix specified servername. (?) + * + * (sptr != cptr && !IsServer(sptr) means + * that message originated from a remote + * user (not local). + * + * combining + * + * (!IsServer(sptr)) means that, sptr can safely + * taken as defining the target structure of the + * message in this server. + * + * *Always* true (if 'parse' and others are working correct): + * + * 1) sptr->from == cptr (note: cptr->from == cptr) + * + * 2) MyConnect(sptr) <=> sptr == cptr (e.g. sptr + * *cannot* be a local connection, unless it's + * actually cptr!). [MyConnect(x) should probably + * be defined as (x == x->from) --msa ] + * + * parc number of variable parameter strings (if zero, + * parv is allowed to be NULL) + * + * parv a NULL terminated list of parameter pointers, + * + * parv[0], sender (prefix string), if not present + * this points to an empty string. + * parv[1]...parv[parc-1] + * pointers to additional parameters + * parv[parc] == NULL, *always* + * + * note: it is guaranteed that parv[0]..parv[parc-1] are all + * non-NULL pointers. + */ +#include "config.h" + +#include "client.h" +#include "channel.h" +#include "hash.h" +#include "ircd.h" +#include "ircd_alloc.h" +#include "ircd_features.h" +#include "ircd_log.h" +#include "ircd_reply.h" +#include "ircd_string.h" +#include "list.h" +#include "msg.h" +#include "numeric.h" +#include "numnicks.h" +#include "s_conf.h" +#include "send.h" + +/* #include -- Now using assert in ircd_log.h */ + +/* + * do_clearmode(struct Client *cptr, struct Client *sptr, + * struct Channel *chptr, char *control) + * + * This is the function that actually clears the channel modes. + */ +static int +do_clearmode(struct Client *cptr, struct Client *sptr, struct Channel *chptr, + char *control) +{ + static int flags[] = { + MODE_CHANOP, 'o', + MODE_VOICE, 'v', + MODE_PRIVATE, 'p', + MODE_SECRET, 's', + MODE_MODERATED, 'm', + MODE_TOPICLIMIT, 't', + MODE_INVITEONLY, 'i', + MODE_NOPRIVMSGS, 'n', + MODE_KEY, 'k', + MODE_BAN, 'b', + MODE_LIMIT, 'l', + MODE_REGONLY, 'r', + MODE_DELJOINS, 'D', + 0x0, 0x0 + }; + int *flag_p; + unsigned int del_mode = 0; + char control_buf[20]; + int control_buf_i = 0; + struct ModeBuf mbuf; + struct Ban *link, *next; + struct Membership *member; + + /* Ok, so what are we supposed to get rid of? */ + for (; *control; control++) { + for (flag_p = flags; flag_p[0]; flag_p += 2) + if (*control == flag_p[1]) { + del_mode |= flag_p[0]; + break; + } + } + + if (!del_mode) + return 0; /* nothing to remove; ho hum. */ + + modebuf_init(&mbuf, sptr, cptr, chptr, + (MODEBUF_DEST_CHANNEL | /* Send MODE to channel */ + MODEBUF_DEST_OPMODE | /* Treat it like an OPMODE */ + MODEBUF_DEST_HACK4)); /* Generate a HACK(4) notice */ + + modebuf_mode(&mbuf, MODE_DEL | (del_mode & chptr->mode.mode)); + chptr->mode.mode &= ~del_mode; /* and of course actually delete them */ + + /* If we're removing invite, remove all the invites */ + if (del_mode & MODE_INVITEONLY) + mode_invite_clear(chptr); + + /* + * If we're removing the key, note that; note that we can't clear + * the key until after modebuf_* are done with it + */ + if (del_mode & MODE_KEY && *chptr->mode.key) + modebuf_mode_string(&mbuf, MODE_DEL | MODE_KEY, chptr->mode.key, 0); + + /* If we're removing the limit, note that and clear the limit */ + if (del_mode & MODE_LIMIT && chptr->mode.limit) { + modebuf_mode_uint(&mbuf, MODE_DEL | MODE_LIMIT, chptr->mode.limit); + chptr->mode.limit = 0; /* not referenced, so safe */ + } + + /* + * Go through and mark the bans for deletion; note that we can't + * free them until after modebuf_* are done with them + */ + if (del_mode & MODE_BAN) { + for (link = chptr->banlist; link; link = next) { + char *bandup; + next = link->next; + + DupString(bandup, link->banstr); + modebuf_mode_string(&mbuf, MODE_DEL | MODE_BAN, /* delete ban */ + bandup, 1); + free_ban(link); + } + + chptr->banlist = 0; + } + + /* Deal with users on the channel */ + if (del_mode & (MODE_BAN | MODE_CHANOP | MODE_VOICE)) + for (member = chptr->members; member; member = member->next_member) { + if (IsZombie(member)) /* we ignore zombies */ + continue; + + if (del_mode & MODE_BAN) /* If we cleared bans, clear the valid flags */ + ClearBanValid(member); + + /* Drop channel operator status */ + if (IsChanOp(member) && del_mode & MODE_CHANOP) { + modebuf_mode_client(&mbuf, MODE_DEL | MODE_CHANOP, member->user, MAXOPLEVEL + 1); + member->status &= ~CHFL_CHANOP; + } + + /* Drop voice */ + if (HasVoice(member) && del_mode & MODE_VOICE) { + modebuf_mode_client(&mbuf, MODE_DEL | MODE_VOICE, member->user, MAXOPLEVEL + 1); + member->status &= ~CHFL_VOICE; + } + } + + /* And flush the modes to the channel */ + modebuf_flush(&mbuf); + + /* Finally, we can clear the key... */ + if (del_mode & MODE_KEY) + chptr->mode.key[0] = '\0'; + + /* Ok, build control string again */ + for (flag_p = flags; flag_p[0]; flag_p += 2) + if (del_mode & flag_p[0]) + control_buf[control_buf_i++] = flag_p[1]; + + control_buf[control_buf_i] = '\0'; + + /* Log it... */ + log_write(LS_OPERMODE, L_INFO, LOG_NOSNOTICE, "%#C CLEARMODE %H %s", sptr, + chptr, control_buf); + + /* Then send it */ + if (!IsLocalChannel(chptr->chname)) + sendcmdto_serv_butone(sptr, CMD_CLEARMODE, cptr, "%H %s", chptr, + control_buf); + + return 0; +} + +/* + * ms_clearmode - server message handler + * + * parv[0] = Send prefix + * parv[1] = Channel name + * parv[2] = Control string + */ +int +ms_clearmode(struct Client* cptr, struct Client* sptr, int parc, char* parv[]) +{ + struct Channel *chptr; + + if (parc < 3) + return need_more_params(sptr, "CLEARMODE"); + + if (!IsPrivileged(sptr)) { + protocol_violation(sptr,"No privileges on source for CLEARMODE, desync?"); + return send_reply(sptr, ERR_NOPRIVILEGES); + } + + if (!IsChannelName(parv[1]) || IsLocalChannel(parv[1]) || + !(chptr = FindChannel(parv[1]))) + return send_reply(sptr, ERR_NOSUCHCHANNEL, parv[1]); + + return do_clearmode(cptr, sptr, chptr, parv[2]); +} + +/* + * mo_clearmode - oper message handler + * + * parv[0] = Send prefix + * parv[1] = Channel name + * parv[2] = Control string + */ +int +mo_clearmode(struct Client* cptr, struct Client* sptr, int parc, char* parv[]) +{ + struct Channel *chptr; + char *control = "ovpsmikbl"; /* default control string */ + const char *chname, *qreason; + int force = 0; + + if (!feature_bool(FEAT_CONFIG_OPERCMDS)) + return send_reply(sptr, ERR_DISABLED, "CLEARMODE"); + + if (parc < 2) + return need_more_params(sptr, "CLEARMODE"); + + if (parc > 2) + control = parv[2]; + + chname = parv[1]; + if (*chname == '!') + { + chname++; + if (!HasPriv(sptr, IsLocalChannel(chname) ? + PRIV_FORCE_LOCAL_OPMODE : + PRIV_FORCE_OPMODE)) + return send_reply(sptr, ERR_NOPRIVILEGES); + force = 1; + } + + if (!HasPriv(sptr, + IsLocalChannel(chname) ? PRIV_LOCAL_OPMODE : PRIV_OPMODE)) + return send_reply(sptr, ERR_NOPRIVILEGES); + + if (('#' != *chname && '&' != *chname) || !(chptr = FindChannel(chname))) + return send_reply(sptr, ERR_NOSUCHCHANNEL, chname); + + if (!force && (qreason = find_quarantine(chptr->chname))) + return send_reply(sptr, ERR_QUARANTINED, chptr->chname, qreason); + + return do_clearmode(cptr, sptr, chptr, control); +}