/* * IRC - Internet Relay Chat, ircd/m_part.c * Copyright (C) 1990 Jarkko Oikarinen and * University of Oulu, Computing Center * * 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_part.c 1344 2005-03-30 04:01:17Z entrope $ */ /* * 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 "channel.h" #include "client.h" #include "hash.h" #include "ircd.h" #include "ircd_log.h" #include "ircd_reply.h" #include "ircd_string.h" #include "numeric.h" #include "numnicks.h" #include "send.h" /* #include -- Now using assert in ircd_log.h */ #include /* * m_part - generic message handler * * parv[0] = sender prefix * parv[1] = channel * parv[parc - 1] = comment */ int m_part(struct Client* cptr, struct Client* sptr, int parc, char* parv[]) { struct Channel *chptr; struct Membership *member; struct JoinBuf parts; unsigned int flags = 0; char *p = 0; char *name; ClrFlag(sptr, FLAG_TS8); /* check number of arguments */ if (parc < 2 || parv[1][0] == '\0') return need_more_params(sptr, "PART"); /* init join/part buffer */ joinbuf_init(&parts, sptr, cptr, JOINBUF_TYPE_PART, (parc > 2 && !EmptyString(parv[parc - 1])) ? parv[parc - 1] : 0, 0); /* scan through channel list */ for (name = ircd_strtok(&p, parv[1], ","); name; name = ircd_strtok(&p, 0, ",")) { chptr = get_channel(sptr, name, CGT_NO_CREATE); /* look up channel */ if (!chptr) { /* complain if there isn't such a channel */ send_reply(sptr, ERR_NOSUCHCHANNEL, name); continue; } if (!(member = find_member_link(chptr, sptr))) { /* complain if not on */ send_reply(sptr, ERR_NOTONCHANNEL, chptr->chname); continue; } assert(!IsZombie(member)); /* Local users should never zombie */ if (!member_can_send_to_channel(member, 0)) { flags |= CHFL_BANNED; /* Remote clients don't want to see a comment either. */ parts.jb_comment = 0; } /* Strip PART message if required */ if (chptr->mode.exmode & EXMODE_NOQUITPARTS) parts.jb_comment = 0; /* Strip PART message if color blocked and has color */ if ((chptr->mode.exmode & EXMODE_NOCOLOR) && parts.jb_comment && HasColor(parts.jb_comment)) parts.jb_comment = 0; /* Strip color from PART message */ if ((chptr->mode.exmode & EXMODE_STRIPCOLOR) && (parts.jb_comment != 0)) { parts.jb_comment = (char*)StripColor(parts.jb_comment); if (EmptyString(parts.jb_comment)) parts.jb_comment = 0; } if (IsDelayedJoin(member)) flags |= CHFL_DELAYED; joinbuf_join(&parts, chptr, flags); /* part client from channel */ } return joinbuf_flush(&parts); /* flush channel parts */ } /* * ms_part - server message handler * * parv[0] = sender prefix * parv[1] = channel * parv[parc - 1] = comment */ int ms_part(struct Client* cptr, struct Client* sptr, int parc, char* parv[]) { struct Channel *chptr; struct Membership *member; struct JoinBuf parts; unsigned int flags; char *p = 0; char *name; ClrFlag(sptr, FLAG_TS8); /* check number of arguments */ if (parc < 2 || parv[1][0] == '\0') return need_more_params(sptr, "PART"); /* init join/part buffer */ joinbuf_init(&parts, sptr, cptr, JOINBUF_TYPE_PART, (parc > 2 && !EmptyString(parv[parc - 1])) ? parv[parc - 1] : 0, 0); /* scan through channel list */ for (name = ircd_strtok(&p, parv[1], ","); name; name = ircd_strtok(&p, 0, ",")) { flags = 0; chptr = get_channel(sptr, name, CGT_NO_CREATE); /* look up channel */ if (!chptr || IsLocalChannel(name) || !(member = find_member_link(chptr, sptr))) continue; /* ignore from remote clients */ if (IsZombie(member)) /* figure out special flags... */ flags |= CHFL_ZOMBIE; if (IsDelayedJoin(member)) flags |= CHFL_DELAYED; /* part user from channel */ joinbuf_join(&parts, chptr, flags); } return joinbuf_flush(&parts); /* flush channel parts */ }