select.c
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/* GNU Mailutils -- a suite of utilities for electronic mail
Copyright (C) 1999, 2001, 2003, 2005-2012, 2014 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;
/* 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_getfullpath (mboxname, NULL);
if (!mailbox_name)
return io_completion_response (command, RESP_NO, "Couldn't open mailbox");
if (flags & MU_STREAM_RDWR)
{
status = manlock_open_mailbox (&mbox, mailbox_name, 1, flags);
}
else
{
status = mu_mailbox_create_default (&mbox, mailbox_name);
if (status)
mu_diag_funcall (MU_DIAG_ERROR, "mu_mailbox_create_default",
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;
}