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/* GNU Mailutils -- a suite of utilities for electronic mail
Copyright (C) 2003, 2005, 2007, 2009-2012 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 <mh.h>
#include <mailutils/sys/msgset.h>
static char *
private_sequence_name (const char *name)
{
char *p;
char *mbox_dir = mh_expand_name (NULL, mh_current_folder (), 0);
mu_asprintf (&p, "atr-%s-%s", name, mbox_dir);
free (mbox_dir);
return p;
}
const char *
mh_seq_read (mu_mailbox_t mbox, const char *name, int flags)
{
const char *value;
if (flags & SEQ_PRIVATE)
{
char *p = private_sequence_name (name);
value = mh_global_context_get (p, NULL);
free (p);
}
else
value = mh_global_sequences_get (mbox, name, NULL);
return value;
}
static void
write_sequence (mu_mailbox_t mbox, const char *name, char *value, int private)
{
if (private)
{
char *p = private_sequence_name (name);
mh_global_context_set (p, value);
free (p);
}
else
mh_global_sequences_set (mbox, name, value);
}
static void
delete_sequence (mu_mailbox_t mbox, const char *name, int private)
{
write_sequence (mbox, name, NULL, private);
}
struct format_closure
{
mu_stream_t stream;
mu_mailbox_t mailbox;
};
static int
format_sequence (void *item, void *data)
{
struct mu_msgrange *r = item;
struct format_closure *clos = data;
int rc;
size_t beg, end;
if (clos->mailbox)
{
rc = mu_mailbox_translate (clos->mailbox,
MU_MAILBOX_MSGNO_TO_UID,
r->msg_beg, &beg);
if (rc)
return rc;
}
else
beg = r->msg_beg;
if (r->msg_beg == r->msg_end)
rc = mu_stream_printf (clos->stream, " %lu", (unsigned long) beg);
else
{
if (clos->mailbox)
{
rc = mu_mailbox_translate (clos->mailbox,
MU_MAILBOX_MSGNO_TO_UID,
r->msg_end, &end);
if (rc)
return rc;
}
else
end = r->msg_end;
if (beg + 1 == end)
rc = mu_stream_printf (clos->stream, " %lu %lu",
(unsigned long) beg,
(unsigned long) end);
else
rc = mu_stream_printf (clos->stream, " %lu-%lu",
(unsigned long) beg,
(unsigned long) end);
}
return rc;
}
static void
save_sequence (mu_mailbox_t mbox, const char *name, mu_msgset_t mset,
int flags)
{
mu_list_t list;
mu_msgset_get_list (mset, &list);
if (mu_list_is_empty (list))
write_sequence (mset->mbox, name, NULL, flags & SEQ_PRIVATE);
else
{
struct format_closure clos;
int rc;
mu_transport_t trans[2];
rc = mu_memory_stream_create (&clos.stream, MU_STREAM_RDWR);
if (rc)
{
mu_diag_funcall (MU_DIAG_ERROR, "mu_memory_stream_create", NULL, rc);
exit (1);
}
clos.mailbox = mset->mbox;
rc = mu_list_foreach (list, format_sequence, &clos);
if (rc)
{
mu_diag_funcall (MU_DIAG_ERROR, "mu_list_foreach", NULL, rc);
exit (1);
}
mu_stream_write (clos.stream, "", 1, NULL);
mu_stream_ioctl (clos.stream, MU_IOCTL_TRANSPORT, MU_IOCTL_OP_GET,
trans);
write_sequence (mbox, name, (char*)trans[0], flags & SEQ_PRIVATE);
mu_stream_unref (clos.stream);
}
}
void
mh_seq_add (mu_mailbox_t mbox, const char *name, mu_msgset_t mset, int flags)
{
const char *value = mh_seq_read (mbox, name, flags);
delete_sequence (mbox, name, !(flags & SEQ_PRIVATE));
if (value && !(flags & SEQ_ZERO))
{
mu_msgset_t oldset;
mh_msgset_parse_string (&oldset, mbox, value, "cur");
mu_msgset_add (oldset, mset);
save_sequence (mbox, name, oldset, flags);
mu_msgset_free (oldset);
}
else
save_sequence (mbox, name, mset, flags);
}
int
mh_seq_delete (mu_mailbox_t mbox, const char *name,
mu_msgset_t mset, int flags)
{
const char *value = mh_seq_read (mbox, name, flags);
mu_msgset_t oldset;
if (!value)
return 0;
mh_msgset_parse_string (&oldset, mbox, value, "cur");
mu_msgset_sub (oldset, mset);
save_sequence (mbox, name, oldset, flags);
mu_msgset_free (oldset);
return 0;
}
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