select.c
4.9 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
/* GNU Mailutils -- a suite of utilities for electronic mail
Copyright (C) 1999, 2001, 2003, 2005-2012, 2014-2017 Free Software
Foundation, Inc.
GNU Mailutils 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 3, or (at your option)
any later version.
GNU Mailutils 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 GNU Mailutils. If not, see <http://www.gnu.org/licenses/>. */
#include "imap4d.h"
static int select_flags;
/* select ::= "SELECT" SPACE mailbox */
int
imap4d_select (struct imap4d_session *session,
struct imap4d_command *command, imap4d_tokbuf_t tok)
{
if (imap4d_tokbuf_argc (tok) != 3)
return io_completion_response (command, RESP_BAD, "Invalid arguments");
return imap4d_select0 (command, imap4d_tokbuf_getarg (tok, IMAP4_ARG_1),
MU_STREAM_RDWR);
}
/* This code is shared with EXAMINE. */
int
imap4d_select0 (struct imap4d_command *command, const char *mboxname,
int flags)
{
int status;
char *mailbox_name;
mu_record_t record;
/* FIXME: Check state. */
/* Even if a mailbox is selected, a SELECT EXAMINE or LOGOUT
command MAY be issued without previously issuing a CLOSE command.
The SELECT, EXAMINE, and LOGUT commands implictly close the
currently selected mailbox without doing an expunge. */
if (mbox)
{
imap4d_enter_critical ();
mu_mailbox_sync (mbox);
mu_mailbox_close (mbox);
manlock_unlock (mbox);
imap4d_leave_critical ();
mu_mailbox_destroy (&mbox);
/* Destroy the old uid table. */
imap4d_sync ();
}
if (strcmp (mboxname, "INBOX") == 0)
flags |= MU_STREAM_CREAT;
mailbox_name = namespace_get_name (mboxname, &record, NULL);
if (!mailbox_name)
return io_completion_response (command, RESP_NO, "Couldn't open mailbox");
if (flags & MU_STREAM_WRITE)
{
status = manlock_open_mailbox_from_record (&mbox, record,
mailbox_name, flags);
if (status)
flags &= ~MU_STREAM_WRITE;
}
if (!(flags & MU_STREAM_WRITE))
{
status = mu_mailbox_create_from_record (&mbox, record, mailbox_name);
if (status)
mu_diag_funcall (MU_DIAG_ERROR, "mu_mailbox_create_from_record",
mailbox_name,
status);
else
{
status = mu_mailbox_open (mbox, flags);
if (status)
{
mu_diag_funcall (MU_DIAG_ERROR, "mu_mailbox_open",
mailbox_name,
status);
mu_mailbox_destroy (&mbox);
}
}
}
if (status == 0)
{
select_flags = flags;
state = STATE_SEL;
imap4d_set_observer (mbox);
if ((status = imap4d_select_status ()) == 0)
{
free (mailbox_name);
/* Need to set the state explicitely for select. */
return io_sendf ("%s OK [%s] %s Completed\n", command->tag,
((flags & MU_STREAM_RDWR) == MU_STREAM_RDWR) ?
"READ-WRITE" : "READ-ONLY", command->name);
}
}
mu_mailbox_destroy (&mbox);
status = io_completion_response (command, RESP_NO, "Could not open %s: %s",
mboxname, mu_strerror (status));
free (mailbox_name);
return status;
}
/* The code is shared between select and noop */
int
imap4d_select_status ()
{
const char *mflags = "\\Answered \\Flagged \\Deleted \\Seen \\Draft";
unsigned long uidvalidity = 0;
size_t count = 0, recent = 0, unseen = 0, uidnext = 0;
int status = 0;
if (state != STATE_SEL)
return 0; /* FIXME: this should be something! */
if ((status = util_uidvalidity (mbox, &uidvalidity))
|| (status = mu_mailbox_uidnext (mbox, &uidnext))
|| (status = mu_mailbox_messages_count (mbox, &count))
|| (status = mu_mailbox_messages_recent (mbox, &recent))
|| (status = mu_mailbox_message_unseen (mbox, &unseen)))
return status;
/* This outputs EXISTS and RECENT responses */
imap4d_sync();
io_untagged_response (RESP_OK, "[UIDVALIDITY %lu] UID valididy status",
uidvalidity);
io_untagged_response (RESP_OK, "[UIDNEXT %lu] Predicted next uid",
(unsigned long) uidnext);
if (unseen)
io_untagged_response (RESP_OK, "[UNSEEN %lu] first unseen message",
(unsigned long) unseen);
io_untagged_response (RESP_NONE, "FLAGS (%s)", mflags);
/* FIXME:
- '\*' can be supported if we use the attribute_set userflag()
- Answered is still not set in the mailbox code. */
if (!(select_flags & MU_STREAM_WRITE))
io_untagged_response (RESP_OK, "[PERMANENTFLAGS ()] No permanent flags");
else
io_untagged_response (RESP_OK, "[PERMANENTFLAGS (%s)] Permanent flags",
mflags);
return 0;
}