225 lines
6.8 KiB
C
225 lines
6.8 KiB
C
/*
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* IRC - Internet Relay Chat, ircd/m_part.c
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* Copyright (C) 1990 Jarkko Oikarinen and
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* University of Oulu, Computing Center
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*
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* See file AUTHORS in IRC package for additional names of
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* the programmers.
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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 1, or (at your option)
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* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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* $Id: m_part.c 1344 2005-03-30 04:01:17Z entrope $
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*/
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/*
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* m_functions execute protocol messages on this server:
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*
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* cptr is always NON-NULL, pointing to a *LOCAL* client
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* structure (with an open socket connected!). This
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* identifies the physical socket where the message
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* originated (or which caused the m_function to be
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* executed--some m_functions may call others...).
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*
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* sptr is the source of the message, defined by the
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* prefix part of the message if present. If not
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* or prefix not found, then sptr==cptr.
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*
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* (!IsServer(cptr)) => (cptr == sptr), because
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* prefixes are taken *only* from servers...
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*
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* (IsServer(cptr))
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* (sptr == cptr) => the message didn't
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* have the prefix.
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*
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* (sptr != cptr && IsServer(sptr) means
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* the prefix specified servername. (?)
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*
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* (sptr != cptr && !IsServer(sptr) means
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* that message originated from a remote
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* user (not local).
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*
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* combining
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*
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* (!IsServer(sptr)) means that, sptr can safely
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* taken as defining the target structure of the
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* message in this server.
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*
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* *Always* true (if 'parse' and others are working correct):
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*
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* 1) sptr->from == cptr (note: cptr->from == cptr)
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*
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* 2) MyConnect(sptr) <=> sptr == cptr (e.g. sptr
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* *cannot* be a local connection, unless it's
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* actually cptr!). [MyConnect(x) should probably
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* be defined as (x == x->from) --msa ]
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*
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* parc number of variable parameter strings (if zero,
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* parv is allowed to be NULL)
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*
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* parv a NULL terminated list of parameter pointers,
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*
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* parv[0], sender (prefix string), if not present
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* this points to an empty string.
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* parv[1]...parv[parc-1]
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* pointers to additional parameters
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* parv[parc] == NULL, *always*
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*
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* note: it is guaranteed that parv[0]..parv[parc-1] are all
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* non-NULL pointers.
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*/
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#include "config.h"
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#include "channel.h"
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#include "client.h"
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#include "hash.h"
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#include "ircd.h"
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#include "ircd_log.h"
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#include "ircd_reply.h"
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#include "ircd_string.h"
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#include "numeric.h"
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#include "numnicks.h"
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#include "send.h"
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/* #include <assert.h> -- Now using assert in ircd_log.h */
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#include <string.h>
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/*
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* m_part - generic message handler
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*
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* parv[0] = sender prefix
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* parv[1] = channel
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* parv[parc - 1] = comment
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*/
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int m_part(struct Client* cptr, struct Client* sptr, int parc, char* parv[])
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{
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struct Channel *chptr;
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struct Membership *member;
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struct JoinBuf parts;
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unsigned int flags = 0;
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char *p = 0;
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char *name;
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ClrFlag(sptr, FLAG_TS8);
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/* check number of arguments */
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if (parc < 2 || parv[1][0] == '\0')
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return need_more_params(sptr, "PART");
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/* init join/part buffer */
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joinbuf_init(&parts, sptr, cptr, JOINBUF_TYPE_PART,
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(parc > 2 && !EmptyString(parv[parc - 1])) ? parv[parc - 1] : 0,
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0);
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/* scan through channel list */
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for (name = ircd_strtok(&p, parv[1], ","); name;
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name = ircd_strtok(&p, 0, ",")) {
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chptr = get_channel(sptr, name, CGT_NO_CREATE); /* look up channel */
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if (!chptr) { /* complain if there isn't such a channel */
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send_reply(sptr, ERR_NOSUCHCHANNEL, name);
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continue;
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}
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if (!(member = find_member_link(chptr, sptr))) { /* complain if not on */
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send_reply(sptr, ERR_NOTONCHANNEL, chptr->chname);
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continue;
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}
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assert(!IsZombie(member)); /* Local users should never zombie */
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if (!member_can_send_to_channel(member, 0))
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{
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flags |= CHFL_BANNED;
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/* Remote clients don't want to see a comment either. */
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parts.jb_comment = 0;
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}
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/* Strip PART message if required */
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if (chptr->mode.exmode & EXMODE_NOQUITPARTS)
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parts.jb_comment = 0;
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/* Strip PART message if color blocked and has color */
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if ((chptr->mode.exmode & EXMODE_NOCOLOR) && parts.jb_comment && HasColor(parts.jb_comment))
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parts.jb_comment = 0;
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/* Strip color from PART message */
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if ((chptr->mode.exmode & EXMODE_STRIPCOLOR) && (parts.jb_comment != 0)) {
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parts.jb_comment = (char*)StripColor(parts.jb_comment);
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if (EmptyString(parts.jb_comment))
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parts.jb_comment = 0;
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}
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if (IsDelayedJoin(member))
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flags |= CHFL_DELAYED;
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joinbuf_join(&parts, chptr, flags); /* part client from channel */
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}
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return joinbuf_flush(&parts); /* flush channel parts */
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}
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/*
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* ms_part - server message handler
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*
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* parv[0] = sender prefix
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* parv[1] = channel
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* parv[parc - 1] = comment
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*/
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int ms_part(struct Client* cptr, struct Client* sptr, int parc, char* parv[])
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{
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struct Channel *chptr;
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struct Membership *member;
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struct JoinBuf parts;
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unsigned int flags;
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char *p = 0;
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char *name;
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ClrFlag(sptr, FLAG_TS8);
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/* check number of arguments */
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if (parc < 2 || parv[1][0] == '\0')
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return need_more_params(sptr, "PART");
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/* init join/part buffer */
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joinbuf_init(&parts, sptr, cptr, JOINBUF_TYPE_PART,
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(parc > 2 && !EmptyString(parv[parc - 1])) ? parv[parc - 1] : 0,
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0);
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/* scan through channel list */
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for (name = ircd_strtok(&p, parv[1], ","); name;
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name = ircd_strtok(&p, 0, ",")) {
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flags = 0;
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chptr = get_channel(sptr, name, CGT_NO_CREATE); /* look up channel */
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if (!chptr || IsLocalChannel(name) ||
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!(member = find_member_link(chptr, sptr)))
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continue; /* ignore from remote clients */
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if (IsZombie(member)) /* figure out special flags... */
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flags |= CHFL_ZOMBIE;
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if (IsDelayedJoin(member))
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flags |= CHFL_DELAYED;
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/* part user from channel */
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joinbuf_join(&parts, chptr, flags);
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}
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return joinbuf_flush(&parts); /* flush channel parts */
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}
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