]>
Commit | Line | Data |
---|---|---|
1 | /* | |
2 | * IRC - Internet Relay Chat, ircd/m_part.c | |
3 | * Copyright (C) 1990 Jarkko Oikarinen and | |
4 | * University of Oulu, Computing Center | |
5 | * | |
6 | * See file AUTHORS in IRC package for additional names of | |
7 | * the programmers. | |
8 | * | |
9 | * This program is free software; you can redistribute it and/or modify | |
10 | * it under the terms of the GNU General Public License as published by | |
11 | * the Free Software Foundation; either version 1, or (at your option) | |
12 | * any later version. | |
13 | * | |
14 | * This program is distributed in the hope that it will be useful, | |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | * GNU General Public License for more details. | |
18 | * | |
19 | * You should have received a copy of the GNU General Public License | |
20 | * along with this program; if not, write to the Free Software | |
21 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
22 | * | |
23 | * $Id: m_part.c,v 1.10 2005/03/30 04:01:17 entrope Exp $ | |
24 | */ | |
25 | ||
26 | /* | |
27 | * m_functions execute protocol messages on this server: | |
28 | * | |
29 | * cptr is always NON-NULL, pointing to a *LOCAL* client | |
30 | * structure (with an open socket connected!). This | |
31 | * identifies the physical socket where the message | |
32 | * originated (or which caused the m_function to be | |
33 | * executed--some m_functions may call others...). | |
34 | * | |
35 | * sptr is the source of the message, defined by the | |
36 | * prefix part of the message if present. If not | |
37 | * or prefix not found, then sptr==cptr. | |
38 | * | |
39 | * (!IsServer(cptr)) => (cptr == sptr), because | |
40 | * prefixes are taken *only* from servers... | |
41 | * | |
42 | * (IsServer(cptr)) | |
43 | * (sptr == cptr) => the message didn't | |
44 | * have the prefix. | |
45 | * | |
46 | * (sptr != cptr && IsServer(sptr) means | |
47 | * the prefix specified servername. (?) | |
48 | * | |
49 | * (sptr != cptr && !IsServer(sptr) means | |
50 | * that message originated from a remote | |
51 | * user (not local). | |
52 | * | |
53 | * combining | |
54 | * | |
55 | * (!IsServer(sptr)) means that, sptr can safely | |
56 | * taken as defining the target structure of the | |
57 | * message in this server. | |
58 | * | |
59 | * *Always* true (if 'parse' and others are working correct): | |
60 | * | |
61 | * 1) sptr->from == cptr (note: cptr->from == cptr) | |
62 | * | |
63 | * 2) MyConnect(sptr) <=> sptr == cptr (e.g. sptr | |
64 | * *cannot* be a local connection, unless it's | |
65 | * actually cptr!). [MyConnect(x) should probably | |
66 | * be defined as (x == x->from) --msa ] | |
67 | * | |
68 | * parc number of variable parameter strings (if zero, | |
69 | * parv is allowed to be NULL) | |
70 | * | |
71 | * parv a NULL terminated list of parameter pointers, | |
72 | * | |
73 | * parv[0], sender (prefix string), if not present | |
74 | * this points to an empty string. | |
75 | * parv[1]...parv[parc-1] | |
76 | * pointers to additional parameters | |
77 | * parv[parc] == NULL, *always* | |
78 | * | |
79 | * note: it is guaranteed that parv[0]..parv[parc-1] are all | |
80 | * non-NULL pointers. | |
81 | */ | |
82 | #include "config.h" | |
83 | ||
84 | #include "channel.h" | |
85 | #include "client.h" | |
86 | #include "hash.h" | |
87 | #include "ircd.h" | |
88 | #include "ircd_log.h" | |
89 | #include "ircd_reply.h" | |
90 | #include "ircd_string.h" | |
91 | #include "numeric.h" | |
92 | #include "numnicks.h" | |
93 | #include "send.h" | |
94 | ||
95 | /* #include <assert.h> -- Now using assert in ircd_log.h */ | |
96 | #include <string.h> | |
97 | ||
98 | /* | |
99 | * m_part - generic message handler | |
100 | * | |
101 | * parv[0] = sender prefix | |
102 | * parv[1] = channel | |
103 | * parv[parc - 1] = comment | |
104 | */ | |
105 | int m_part(struct Client* cptr, struct Client* sptr, int parc, char* parv[]) | |
106 | { | |
107 | struct Channel *chptr; | |
108 | struct Membership *member; | |
109 | struct JoinBuf parts; | |
110 | unsigned int flags = 0; | |
111 | char *p = 0; | |
112 | char *name; | |
113 | ||
114 | ClrFlag(sptr, FLAG_TS8); | |
115 | ||
116 | /* check number of arguments */ | |
117 | if (parc < 2 || parv[1][0] == '\0') | |
118 | return need_more_params(sptr, "PART"); | |
119 | ||
120 | /* init join/part buffer */ | |
121 | joinbuf_init(&parts, sptr, cptr, JOINBUF_TYPE_PART, | |
122 | (parc > 2 && !EmptyString(parv[parc - 1])) ? parv[parc - 1] : 0, | |
123 | 0); | |
124 | ||
125 | /* scan through channel list */ | |
126 | for (name = ircd_strtok(&p, parv[1], ","); name; | |
127 | name = ircd_strtok(&p, 0, ",")) { | |
128 | ||
129 | chptr = get_channel(sptr, name, CGT_NO_CREATE); /* look up channel */ | |
130 | ||
131 | if (!chptr) { /* complain if there isn't such a channel */ | |
132 | send_reply(sptr, ERR_NOSUCHCHANNEL, name); | |
133 | continue; | |
134 | } | |
135 | ||
136 | if (!(member = find_member_link(chptr, sptr))) { /* complain if not on */ | |
137 | send_reply(sptr, ERR_NOTONCHANNEL, chptr->chname); | |
138 | continue; | |
139 | } | |
140 | ||
141 | assert(!IsZombie(member)); /* Local users should never zombie */ | |
142 | ||
143 | if (!member_can_send_to_channel(member, 0)) | |
144 | { | |
145 | flags |= CHFL_BANNED; | |
146 | /* Remote clients don't want to see a comment either. */ | |
147 | parts.jb_comment = 0; | |
148 | } | |
149 | ||
150 | if (IsDelayedJoin(member)) | |
151 | flags |= CHFL_DELAYED; | |
152 | ||
153 | joinbuf_join(&parts, chptr, flags); /* part client from channel */ | |
154 | } | |
155 | ||
156 | return joinbuf_flush(&parts); /* flush channel parts */ | |
157 | } | |
158 | ||
159 | /* | |
160 | * ms_part - server message handler | |
161 | * | |
162 | * parv[0] = sender prefix | |
163 | * parv[1] = channel | |
164 | * parv[parc - 1] = comment | |
165 | */ | |
166 | int ms_part(struct Client* cptr, struct Client* sptr, int parc, char* parv[]) | |
167 | { | |
168 | struct Channel *chptr; | |
169 | struct Membership *member; | |
170 | struct JoinBuf parts; | |
171 | unsigned int flags; | |
172 | char *p = 0; | |
173 | char *name; | |
174 | ||
175 | ClrFlag(sptr, FLAG_TS8); | |
176 | ||
177 | /* check number of arguments */ | |
178 | if (parc < 2 || parv[1][0] == '\0') | |
179 | return need_more_params(sptr, "PART"); | |
180 | ||
181 | /* init join/part buffer */ | |
182 | joinbuf_init(&parts, sptr, cptr, JOINBUF_TYPE_PART, | |
183 | (parc > 2 && !EmptyString(parv[parc - 1])) ? parv[parc - 1] : 0, | |
184 | 0); | |
185 | ||
186 | /* scan through channel list */ | |
187 | for (name = ircd_strtok(&p, parv[1], ","); name; | |
188 | name = ircd_strtok(&p, 0, ",")) { | |
189 | ||
190 | flags = 0; | |
191 | ||
192 | chptr = get_channel(sptr, name, CGT_NO_CREATE); /* look up channel */ | |
193 | ||
194 | if (!chptr || IsLocalChannel(name) || | |
195 | !(member = find_member_link(chptr, sptr))) | |
196 | continue; /* ignore from remote clients */ | |
197 | ||
198 | if (IsZombie(member)) /* figure out special flags... */ | |
199 | flags |= CHFL_ZOMBIE; | |
200 | ||
201 | if (IsDelayedJoin(member)) | |
202 | flags |= CHFL_DELAYED; | |
203 | ||
204 | /* part user from channel */ | |
205 | joinbuf_join(&parts, chptr, flags); | |
206 | } | |
207 | ||
208 | return joinbuf_flush(&parts); /* flush channel parts */ | |
209 | } |