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/*
* Copyright (C) 1998 Brandon Long <blong@fiction.net>
* Copyright (C) 1999 Andrej Gritsenko <andrej@lucky.net>
* Copyright (C) 2000-2012 Vsevolod Volkov <vvv@mutt.org.ua>
*
* This program 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 2 of the License, or
* (at your option) any later version.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef _NNTP_H_
#define _NNTP_H_ 1
#include "mutt_socket.h"
#include "mailbox.h"
#include "bcache.h"
#if USE_HCACHE
#include "hcache.h"
#endif
#include <time.h>
#include <sys/types.h>
#include <stdint.h>
#define NNTP_PORT 119
#define NNTP_SSL_PORT 563
/* number of entries in article cache */
#define NNTP_ACACHE_LEN 10
/* article number type and format */
#define anum_t uint32_t
#define ANUM "%u"
enum
{
NNTP_NONE = 0,
NNTP_OK,
NNTP_BYE
};
typedef struct
{
unsigned int hasCAPABILITIES : 1;
unsigned int hasSTARTTLS : 1;
unsigned int hasDATE : 1;
unsigned int hasLIST_NEWSGROUPS : 1;
unsigned int hasXGTITLE : 1;
unsigned int hasLISTGROUP : 1;
unsigned int hasLISTGROUPrange : 1;
unsigned int hasOVER : 1;
unsigned int hasXOVER : 1;
unsigned int use_tls : 3;
unsigned int status : 3;
unsigned int cacheable : 1;
unsigned int newsrc_modified : 1;
FILE *newsrc_fp;
char *newsrc_file;
char *authenticators;
char *overview_fmt;
off_t size;
time_t mtime;
time_t newgroups_time;
time_t check_time;
unsigned int groups_num;
unsigned int groups_max;
void **groups_list;
HASH *groups_hash;
CONNECTION *conn;
} NNTP_SERVER;
typedef struct
{
anum_t first;
anum_t last;
} NEWSRC_ENTRY;
typedef struct
{
unsigned int index;
char *path;
} NNTP_ACACHE;
typedef struct
{
char *group;
char *desc;
anum_t firstMessage;
anum_t lastMessage;
anum_t lastLoaded;
anum_t lastCached;
anum_t unread;
unsigned int subscribed : 1;
unsigned int new : 1;
unsigned int allowed : 1;
unsigned int deleted : 1;
unsigned int newsrc_len;
NEWSRC_ENTRY *newsrc_ent;
NNTP_SERVER *nserv;
NNTP_ACACHE acache[NNTP_ACACHE_LEN];
body_cache_t *bcache;
} NNTP_DATA;
typedef struct
{
anum_t article_num;
unsigned int parsed : 1;
} NNTP_HEADER_DATA;
#define NHDR(hdr) ((NNTP_HEADER_DATA*)((hdr)->data))
/* internal functions */
int nntp_add_group (char *, void *);
int nntp_active_save_cache (NNTP_SERVER *);
int nntp_check_new_groups (NNTP_SERVER *);
int nntp_fastclose_mailbox (CONTEXT *);
int nntp_open_connection (NNTP_SERVER *);
void nntp_newsrc_gen_entries (CONTEXT *);
void nntp_bcache_update (NNTP_DATA *);
void nntp_article_status (CONTEXT *, HEADER *, char *, anum_t);
void nntp_group_unread_stat (NNTP_DATA *);
void nntp_data_free (void *);
void nntp_acache_free (NNTP_DATA *);
void nntp_delete_group_cache (NNTP_DATA *);
/* exposed interface */
NNTP_SERVER *nntp_select_server (char *, int);
NNTP_DATA *mutt_newsgroup_subscribe (NNTP_SERVER *, char *);
NNTP_DATA *mutt_newsgroup_unsubscribe (NNTP_SERVER *, char *);
NNTP_DATA *mutt_newsgroup_catchup (NNTP_SERVER *, char *);
NNTP_DATA *mutt_newsgroup_uncatchup (NNTP_SERVER *, char *);
int nntp_active_fetch (NNTP_SERVER *);
int nntp_newsrc_update (NNTP_SERVER *);
int nntp_open_mailbox (CONTEXT *);
int nntp_sync_mailbox (CONTEXT *ctx, int *index_hint);
int nntp_check_mailbox (CONTEXT *, int*);
int nntp_fetch_message (CONTEXT *, MESSAGE *, int);
int nntp_post (const char *);
int nntp_check_msgid (CONTEXT *, const char *);
int nntp_check_children (CONTEXT *, const char *);
int nntp_newsrc_parse (NNTP_SERVER *);
void nntp_newsrc_close (NNTP_SERVER *);
void nntp_buffy (char *, size_t);
void nntp_expand_path (char *, size_t, ACCOUNT *);
void nntp_clear_cache (NNTP_SERVER *);
const char *nntp_format_str (char *, size_t, size_t, int, char, const char *,
const char *, const char *, const char *,
unsigned long, format_flag);
NNTP_SERVER *CurrentNewsSrv INITVAL (NULL);
#ifdef USE_HCACHE
header_cache_t *nntp_hcache_open (NNTP_DATA *);
void nntp_hcache_update (NNTP_DATA *, header_cache_t *);
#endif
extern struct mx_ops mx_nntp_ops;
#endif /* _NNTP_H_ */
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