/*
* Copyright (C) 1996-9 Brandon Long <blong@fiction.net>
* Copyright (C) 1999-2007 Brendan Cully <brendan@kublai.com>
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
/* message parsing/updating functions */
#if HAVE_CONFIG_H
# include "config.h"
#endif
#include <errno.h>
#include <stdlib.h>
#include <ctype.h>
#include "mutt.h"
#include "imap_private.h"
#include "message.h"
#include "mx.h"
#ifdef HAVE_PGP
#include "pgp.h"
#endif
#if USE_HCACHE
#include "hcache.h"
#endif
#include "bcache.h"
static FILE* msg_cache_get (IMAP_DATA* idata, HEADER* h);
static FILE* msg_cache_put (IMAP_DATA* idata, HEADER* h);
static int msg_cache_commit (IMAP_DATA* idata, HEADER* h);
static void flush_buffer(char* buf, size_t* len, CONNECTION* conn);
static int msg_fetch_header (CONTEXT* ctx, IMAP_HEADER* h, char* buf,
FILE* fp);
static int msg_parse_fetch (IMAP_HEADER* h, char* s);
static char* msg_parse_flags (IMAP_HEADER* h, char* s);
/* imap_read_headers:
* Changed to read many headers instead of just one. It will return the
* msgno of the last message read. It will return a value other than
* msgend if mail comes in while downloading headers (in theory).
*/
int imap_read_headers (IMAP_DATA* idata, int msgbegin, int msgend)
{
CONTEXT* ctx;
char buf[LONG_STRING];
char hdrreq[STRING];
FILE *fp;
char tempfile[_POSIX_PATH_MAX];
int msgno, idx;
IMAP_HEADER h;
IMAP_STATUS* status;
int rc, mfhrc, oldmsgcount;
int fetchlast = 0;
int maxuid = 0;
const char *want_headers = "DATE FROM SUBJECT TO CC MESSAGE-ID REFERENCES CONTENT-TYPE CONTENT-DESCRIPTION IN-REPLY-TO REPLY-TO LINES LIST-POST X-LABEL";
progress_t progress;
#if USE_HCACHE
unsigned int *uid_validity = NULL;
unsigned int *uidnext = NULL;
int evalhc = 0;
#endif /* USE_HCACHE */
ctx = idata->ctx;
if (mutt_bit_isset (idata->capabilities,IMAP4REV1))
{
snprintf (hdrreq, sizeof (hdrreq), "BODY.PEEK[HEADER.FIELDS (%s%s%s)]",
want_headers, ImapHeaders ? " " : "", ImapHeaders ? ImapHeaders : "");
}
else if (mutt_bit_isset (idata->capabilities,IMAP4))
{
snprintf (hdrreq, sizeof (hdrreq), "RFC822.HEADER.LINES (%s%s%s)",