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/* GNU Mailutils -- a suite of utilities for electronic mail
Copyright (C) 2004-2005, 2007, 2010-2012 Free Software Foundation,
Inc.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 3 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General
Public License along with this library. If not, see
<http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#ifdef ENABLE_NNTP
#include <errno.h>
#include <stdlib.h>
#include <string.h>
#ifdef HAVE_STRINGS_H
# include <strings.h>
#endif
#include <mailutils/nntp.h>
#include <mailutils/errno.h>
#include <mailutils/mailbox.h>
#include <mailutils/registrar.h>
#include <mailutils/url.h>
#include <mailutils/sys/folder.h>
#include "mailutils/sys/nntp.h"
/* We export url parsing and the initialisation of
the mailbox, via the register entry/record. */
static struct _mu_record _nntp_record =
{
MU_NNTP_PRIO,
MU_NNTP_URL_SCHEME,
MU_RECORD_DEFAULT,
MU_URL_SCHEME | MU_URL_CRED | MU_URL_INET | MU_URL_PATH,
MU_URL_HOST,
_nntp_url_init, /* Url init. */
_nntp_mailbox_init, /* Mailbox init. */
NULL, /* Mailer init. */
_nntp_folder_init, /* Folder init. */
NULL, /* No need for an back pointer. */
NULL, /* _is_scheme method. */
NULL, /* _get_url method. */
NULL, /* _get_mailbox method. */
NULL, /* _get_mailer method. */
NULL /* _get_folder method. */
};
mu_record_t mu_nntp_record = &_nntp_record;
static int nntp_folder_open (mu_folder_t, int);
static int nntp_folder_close (mu_folder_t);
static void nntp_folder_destroy (mu_folder_t folder);
static int nntp_folder_list (mu_folder_t folder, const char *ref,
void *name, int flags,
size_t max,
mu_list_t flist,
mu_folder_enumerate_fp efp, void *edp);
int
_nntp_folder_init (mu_folder_t folder)
{
f_nntp_t f_nntp;
f_nntp = folder->data = calloc (1, sizeof (*f_nntp));
if (f_nntp == NULL)
return ENOMEM;
f_nntp->folder = folder;
folder->_destroy = nntp_folder_destroy;
folder->_open = nntp_folder_open;
folder->_close = nntp_folder_close;
folder->_list = nntp_folder_list;
/* Not supported.
folder->_lsub = folder_nntp_lsub;
folder->_subscribe = folder_nntp_subscribe;
folder->_unsubscribe = folder_nntp_unsubscribe;
folder->_delete = folder_nntp_delete;
folder->_rename = folder_nntp_rename;
*/
return 0;
}
static int
nntp_folder_open (mu_folder_t folder, int flags)
{
f_nntp_t f_nntp = folder->data;
mu_stream_t carrier = NULL;
const char *host;
unsigned port = MU_NNTP_DEFAULT_PORT; /* default nntp port. */
int status = 0;
/* If we are already open for business, noop. */
mu_monitor_wrlock (folder->monitor);
if (f_nntp->isopen)
{
mu_monitor_unlock (folder->monitor);
return 0;
}
mu_monitor_unlock (folder->monitor);
/* Fetch the server name and the port in the mu_url_t. */
status = mu_url_sget_host (folder->url, &host);
if (status != 0)
return status;
mu_url_get_port (folder->url, &port);
folder->flags = flags;
/* Create the networking stack. */
status = mu_tcp_stream_create (&carrier, host, port, folder->flags);
if (status != 0)
return status;
/* Ask for the stream internal buffering mechanism scheme. */
mu_stream_setbufsiz (carrier, BUFSIZ);
mu_debug (MU_DEBCAT_FOLDER, MU_DEBUG_PROT, ("folder_nntp_open (%s:%ld)",
host, port));
status = mu_nntp_create (&f_nntp->nntp);
if (status == 0)
{
status = mu_nntp_set_carrier (f_nntp->nntp, carrier);
if (status == 0)
{
status = mu_nntp_connect (f_nntp->nntp);
if (status == 0)
{
mu_monitor_wrlock (folder->monitor);
f_nntp->isopen++;
mu_monitor_unlock (folder->monitor);
}
}
}
return status;
}
static int
nntp_folder_close (mu_folder_t folder)
{
f_nntp_t f_nntp = folder->data;
int status = 0;
mu_monitor_wrlock (folder->monitor);
f_nntp->isopen--;
if (f_nntp->isopen)
{
mu_monitor_unlock (folder->monitor);
return 0;
}
mu_monitor_unlock (folder->monitor);
status = mu_nntp_quit (f_nntp->nntp);
f_nntp->selected = NULL;
return status;
}
/* Destroy the folder resources. */
static void
nntp_folder_destroy (mu_folder_t folder)
{
if (folder->data)
{
f_nntp_t f_nntp = folder->data;
if (f_nntp->nntp)
mu_nntp_destroy (&f_nntp->nntp);
free (f_nntp);
folder->data = NULL;
}
}
static int
nntp_folder_list (mu_folder_t folder, const char *ref, void *pat, int flags,
size_t max_level, mu_list_t flist,
mu_folder_enumerate_fp efp, void *edp)
{
return ENOTSUP;
}
#else
#include <stdio.h>
#include <mailutils/sys/registrar.h>
mu_record_t mu_nntp_record = NULL;
#endif
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