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/*
* Copyright (C) 1996-2002 Michael R. Elkins <me@mutt.org>
* Copyright (C) 1999-2003 Thomas Roessler <roessler@does-not-exist.org>
*
* 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.
*/
#if HAVE_CONFIG_H
# include "config.h"
#endif
#include "mutt.h"
#include "mx.h"
#include "rfc2047.h"
#include "sort.h"
#include "mailbox.h"
#include "copy.h"
#include "keymap.h"
#include "url.h"
#ifdef USE_IMAP
#include "imap.h"
#endif
#ifdef USE_POP
#include "pop.h"
#endif
#include "buffy.h"
#ifdef USE_DOTLOCK
#include "dotlock.h"
#endif
#include "mutt_crypt.h"
#include <dirent.h>
#include <fcntl.h>
#include <sys/file.h>
#include <sys/stat.h>
#include <errno.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <utime.h>
#define mutt_is_spool(s) (mutt_strcmp (Spoolfile, s) == 0)
#ifdef USE_DOTLOCK
/* parameters:
* path - file to lock
* retry - should retry if unable to lock?
*/
#ifdef DL_STANDALONE
static int invoke_dotlock (const char *path, int dummy, int flags, int retry)
{
char cmd[LONG_STRING + _POSIX_PATH_MAX];
char f[SHORT_STRING + _POSIX_PATH_MAX];
char r[SHORT_STRING];
if (flags & DL_FL_RETRY)
snprintf (r, sizeof (r), "-r %d ", retry ? MAXLOCKATTEMPT : 0);
mutt_quote_filename (f, sizeof (f), path);
snprintf (cmd, sizeof (cmd),
"%s %s%s%s%s%s%s%s",
NONULL (MuttDotlock),
flags & DL_FL_TRY ? "-t " : "",
flags & DL_FL_UNLOCK ? "-u " : "",
flags & DL_FL_USEPRIV ? "-p " : "",
flags & DL_FL_FORCE ? "-f " : "",
flags & DL_FL_UNLINK ? "-d " : "",
flags & DL_FL_RETRY ? r : "",
f);
return mutt_system (cmd);
}
#else
#define invoke_dotlock dotlock_invoke
#endif
static int dotlock_file (const char *path, int fd, int retry)
{
int r;
int flags = DL_FL_USEPRIV | DL_FL_RETRY;
if (retry) retry = 1;
retry_lock:
if ((r = invoke_dotlock(path, fd, flags, retry)) == DL_EX_EXIST)
{
if (!option (OPTNOCURSES))
{
char msg[LONG_STRING];
snprintf(msg, sizeof(msg), _("Lock count exceeded, remove lock for %s?"),
path);
if(retry && mutt_yesorno(msg, M_YES) == M_YES)
{
flags |= DL_FL_FORCE;
retry--;
mutt_clear_error ();
goto retry_lock;
}
}
else
{
mutt_error ( _("Can't dotlock %s.\n"), path);
}
}
return (r == DL_EX_OK ? 0 : -1);
}
static int undotlock_file (const char *path, int fd)
{
return (invoke_dotlock(path, fd, DL_FL_USEPRIV | DL_FL_UNLOCK, 0) == DL_EX_OK ?
0 : -1);
}
#endif /* USE_DOTLOCK */
/* Args:
* excl if excl != 0, request an exclusive lock
* dot if dot != 0, try to dotlock the file
* timeout should retry locking?
*/
int mx_lock_file (const char *path, int fd, int excl, int dot, int timeout)
{
#if defined (USE_FCNTL) || defined (USE_FLOCK)
int count;
int attempt;
struct stat sb = { 0 }, prev_sb = { 0 }; /* silence gcc warnings */
#endif
int r = 0;
#ifdef USE_FCNTL
struct flock lck;
memset (&lck, 0, sizeof (struct flock));
lck.l_type = excl ? F_WRLCK : F_RDLCK;
lck.l_whence = SEEK_SET;
count = 0;
attempt = 0;
while (fcntl (fd, F_SETLK, &lck) == -1)
{
dprint(1,(debugfile, "mx_lock_file(): fcntl errno %d.\n", errno));
if (errno != EAGAIN && errno != EACCES)
{
mutt_perror ("fcntl");
return -1;
}
if (fstat (fd, &sb) != 0)
sb.st_size = 0;
if (count == 0)
prev_sb = sb;
/* only unlock file if it is unchanged */
if (prev_sb.st_size == sb.st_size && ++count >= (timeout?MAXLOCKATTEMPT:0))
{
if (timeout)
mutt_error _("Timeout exceeded while attempting fcntl lock!");
return -1;
}
prev_sb = sb;
mutt_message (_("Waiting for fcntl lock... %d"), ++attempt);
sleep (1);
}
#endif /* USE_FCNTL */
#ifdef USE_FLOCK
count = 0;
attempt = 0;
while (flock (fd, (excl ? LOCK_EX : LOCK_SH) | LOCK_NB) == -1)
{
if (errno != EWOULDBLOCK)
{
mutt_perror ("flock");
r = -1;
break;
}
if (fstat(fd, &sb) != 0)
sb.st_size = 0;
if (count == 0)
prev_sb = sb;
/* only unlock file if it is unchanged */
if (prev_sb.st_size == sb.st_size && ++count >= (timeout?MAXLOCKATTEMPT:0))
{
if (timeout)
mutt_error _("Timeout exceeded while attempting flock lock!");
r = -1;
break;
}
prev_sb = sb;
mutt_message (_("Waiting for flock attempt... %d"), ++attempt);
sleep (1);
}
#endif /* USE_FLOCK */
#ifdef USE_DOTLOCK
if (r == 0 && dot)
r = dotlock_file (path, fd, timeout);
#endif /* USE_DOTLOCK */
if (r != 0)
{
/* release any other locks obtained in this routine */
#ifdef USE_FCNTL
lck.l_type = F_UNLCK;
fcntl (fd, F_SETLK, &lck);
#endif /* USE_FCNTL */
#ifdef USE_FLOCK
flock (fd, LOCK_UN);
#endif /* USE_FLOCK */
}
return r;
}
int mx_unlock_file (const char *path, int fd, int dot)
{
#ifdef USE_FCNTL
struct flock unlockit = { F_UNLCK, 0, 0, 0, 0 };
memset (&unlockit, 0, sizeof (struct flock));
unlockit.l_type = F_UNLCK;
unlockit.l_whence = SEEK_SET;
fcntl (fd, F_SETLK, &unlockit);
#endif
#ifdef USE_FLOCK
flock (fd, LOCK_UN);
#endif
#ifdef USE_DOTLOCK
if (dot)
undotlock_file (path, fd);
#endif
return 0;
}
static void mx_unlink_empty (const char *path)
{
int fd;
#ifndef USE_DOTLOCK
struct stat sb;
#endif
if ((fd = open (path, O_RDWR)) == -1)
return;
if (mx_lock_file (path, fd, 1, 0, 1) == -1)
{
close (fd);
return;
}
#ifdef USE_DOTLOCK
invoke_dotlock (path, fd, DL_FL_UNLINK, 1);
#else
if (fstat (fd, &sb) == 0 && sb.st_size == 0)
unlink (path);
#endif
mx_unlock_file (path, fd, 0);
close (fd);
}
/* try to figure out what type of mailbox ``path'' is
*
* return values:
* M_* mailbox type
* 0 not a mailbox
* -1 error
*/
#ifdef USE_IMAP
int mx_is_imap(const char *p)
{
url_scheme_t scheme;
if (!p)
return 0;
if (*p == '{')
return 1;
scheme = url_check_scheme (p);
if (scheme == U_IMAP || scheme == U_IMAPS)
return 1;
return 0;
}
#endif
#ifdef USE_POP
int mx_is_pop (const char *p)
{
url_scheme_t scheme;
if (!p)
return 0;
scheme = url_check_scheme (p);
if (scheme == U_POP || scheme == U_POPS)
return 1;
return 0;
}
#endif
int mx_get_magic (const char *path)
{
struct stat st;
int magic = 0;
char tmp[_POSIX_PATH_MAX];
FILE *f;
#ifdef USE_IMAP
if(mx_is_imap(path))
return M_IMAP;
#endif /* USE_IMAP */
#ifdef USE_POP
if (mx_is_pop (path))
return M_POP;
#endif /* USE_POP */
if (stat (path, &st) == -1)
{
dprint (1, (debugfile, "mx_get_magic(): unable to stat %s: %s (errno %d).\n",
path, strerror (errno), errno));
return (-1);
}
if (S_ISDIR (st.st_mode))
{
/* check for maildir-style mailbox */
if (mx_is_maildir (path))
return M_MAILDIR;
/* check for mh-style mailbox */
if (mx_is_mh (path))
return M_MH;
}
else if (st.st_size == 0)
{
/* hard to tell what zero-length files are, so assume the default magic */
if (DefaultMagic == M_MBOX || DefaultMagic == M_MMDF)
return (DefaultMagic);
else
return (M_MBOX);
}
else if ((f = fopen (path, "r")) != NULL)
{
struct utimbuf times;
fgets (tmp, sizeof (tmp), f);
if (mutt_strncmp ("From ", tmp, 5) == 0)
magic = M_MBOX;
else if (mutt_strcmp (MMDF_SEP, tmp) == 0)
magic = M_MMDF;
safe_fclose (&f);
if (!option(OPTCHECKMBOXSIZE))
{
/* need to restore the times here, the file was not really accessed,
* only the type was accessed. This is important, because detection
* of "new mail" depends on those times set correctly.
*/
times.actime = st.st_atime;
times.modtime = st.st_mtime;
utime (path, &times);
}
}
else
{
dprint (1, (debugfile, "mx_get_magic(): unable to open file %s for reading.\n",
path));
return (-1);
}
return (magic);
}
/*
* set DefaultMagic to the given value
*/
int mx_set_magic (const char *s)
{
if (ascii_strcasecmp (s, "mbox") == 0)
DefaultMagic = M_MBOX;
else if (ascii_strcasecmp (s, "mmdf") == 0)
DefaultMagic = M_MMDF;
else if (ascii_strcasecmp (s, "mh") == 0)
DefaultMagic = M_MH;
else if (ascii_strcasecmp (s, "maildir") == 0)
DefaultMagic = M_MAILDIR;
else
return (-1);
return 0;
}
/* mx_access: Wrapper for access, checks permissions on a given mailbox.
* We may be interested in using ACL-style flags at some point, currently
* we use the normal access() flags. */
int mx_access (const char* path, int flags)
{
#ifdef USE_IMAP
if (mx_is_imap (path))
return imap_access (path, flags);
#endif
return access (path, flags);
}
static int mx_open_mailbox_append (CONTEXT *ctx, int flags)
{
struct stat sb;
ctx->append = 1;
#ifdef USE_IMAP
if(mx_is_imap(ctx->path))
return imap_open_mailbox_append (ctx);
#endif
if(stat(ctx->path, &sb) == 0)
{
ctx->magic = mx_get_magic (ctx->path);
switch (ctx->magic)
{
case 0:
mutt_error (_("%s is not a mailbox."), ctx->path);
/* fall through */
case -1:
return (-1);
}
}
else if (errno == ENOENT)
{
ctx->magic = DefaultMagic;
if (ctx->magic == M_MH || ctx->magic == M_MAILDIR)
{
char tmp[_POSIX_PATH_MAX];
if (mkdir (ctx->path, S_IRWXU))
{
mutt_perror (ctx->path);
return (-1);
}
if (ctx->magic == M_MAILDIR)
{
snprintf (tmp, sizeof (tmp), "%s/cur", ctx->path);
if (mkdir (tmp, S_IRWXU))
{
mutt_perror (tmp);
rmdir (ctx->path);
return (-1);
}
snprintf (tmp, sizeof (tmp), "%s/new", ctx->path);
if (mkdir (tmp, S_IRWXU))
{
mutt_perror (tmp);
snprintf (tmp, sizeof (tmp), "%s/cur", ctx->path);
rmdir (tmp);
rmdir (ctx->path);
return (-1);
}
snprintf (tmp, sizeof (tmp), "%s/tmp", ctx->path);
if (mkdir (tmp, S_IRWXU))
{
mutt_perror (tmp);
snprintf (tmp, sizeof (tmp), "%s/cur", ctx->path);
rmdir (tmp);
snprintf (tmp, sizeof (tmp), "%s/new", ctx->path);
rmdir (tmp);
rmdir (ctx->path);
return (-1);
}
}
else
{
int i;
snprintf (tmp, sizeof (tmp), "%s/.mh_sequences", ctx->path);
if ((i = creat (tmp, S_IRWXU)) == -1)
{
mutt_perror (tmp);
rmdir (ctx->path);
return (-1);
}
close (i);
}
}
}
else
{
mutt_perror (ctx->path);
return (-1);
}
switch (ctx->magic)
{
case M_MBOX:
case M_MMDF:
if ((ctx->fp = safe_fopen (ctx->path, flags & M_NEWFOLDER ? "w" : "a")) == NULL ||
mbox_lock_mailbox (ctx, 1, 1) != 0)
{
if (!ctx->fp)
mutt_perror (ctx->path);
else
{
mutt_error (_("Couldn't lock %s\n"), ctx->path);
safe_fclose (&ctx->fp);
}
return (-1);
}
fseek (ctx->fp, 0, 2);
break;
case M_MH:
case M_MAILDIR:
/* nothing to do */
break;
default:
return (-1);
}
return 0;
}
/*
* open a mailbox and parse it
*
* Args:
* flags M_NOSORT do not sort mailbox
* M_APPEND open mailbox for appending
* M_READONLY open mailbox in read-only mode
* M_QUIET only print error messages
* ctx if non-null, context struct to use
*/
CONTEXT *mx_open_mailbox (const char *path, int flags, CONTEXT *pctx)
{
CONTEXT *ctx = pctx;
int rc;
if (!ctx)
ctx = safe_malloc (sizeof (CONTEXT));
memset (ctx, 0, sizeof (CONTEXT));
ctx->path = safe_strdup (path);
ctx->msgnotreadyet = -1;
ctx->collapsed = 0;
for (rc=0; rc < RIGHTSMAX; rc++)
mutt_bit_set(ctx->rights,rc);
if (flags & M_QUIET)
ctx->quiet = 1;
if (flags & M_READONLY)
ctx->readonly = 1;
if (flags & (M_APPEND|M_NEWFOLDER))
{
if (mx_open_mailbox_append (ctx, flags) != 0)
{
mx_fastclose_mailbox (ctx);
if (!pctx)
FREE (&ctx);
return NULL;
}
return ctx;
}
ctx->magic = mx_get_magic (path);
if(ctx->magic == 0)
mutt_error (_("%s is not a mailbox."), path);
if(ctx->magic == -1)
mutt_perror(path);
if(ctx->magic <= 0)
{
mx_fastclose_mailbox (ctx);
if (!pctx)
FREE (&ctx);
return (NULL);
}
/* if the user has a `push' command in their .muttrc, or in a folder-hook,
* it will cause the progress messages not to be displayed because
* mutt_refresh() will think we are in the middle of a macro. so set a
* flag to indicate that we should really refresh the screen.
*/
set_option (OPTFORCEREFRESH);
if (!ctx->quiet)
mutt_message (_("Reading %s..."), ctx->path);
switch (ctx->magic)
{
case M_MH:
rc = mh_read_dir (ctx, NULL);
break;
case M_MAILDIR:
rc = maildir_read_dir (ctx);
break;
case M_MMDF:
case M_MBOX:
rc = mbox_open_mailbox (ctx);
break;
#ifdef USE_IMAP
case M_IMAP:
rc = imap_open_mailbox (ctx);
break;
#endif /* USE_IMAP */
#ifdef USE_POP
case M_POP:
rc = pop_open_mailbox (ctx);
break;
#endif /* USE_POP */
default:
rc = -1;
break;
}
if (rc == 0)
{
if ((flags & M_NOSORT) == 0)
{
/* avoid unnecessary work since the mailbox is completely unthreaded
to begin with */
unset_option (OPTSORTSUBTHREADS);
unset_option (OPTNEEDRESCORE);
mutt_sort_headers (ctx, 1);
}
if (!ctx->quiet)
mutt_clear_error ();
}
else
{
mx_fastclose_mailbox (ctx);
if (!pctx)
FREE (&ctx);
}
unset_option (OPTFORCEREFRESH);
return (ctx);
}
/* free up memory associated with the mailbox context */
void mx_fastclose_mailbox (CONTEXT *ctx)
{
int i;
if(!ctx)
return;
/* never announce that a mailbox we've just left has new mail. #3290
* XXX: really belongs in mx_close_mailbox, but this is a nice hook point */
mutt_buffy_setnotified(ctx->path);
if (ctx->mx_close)
ctx->mx_close (ctx);
if (ctx->subj_hash)
hash_destroy (&ctx->subj_hash, NULL);
if (ctx->id_hash)
hash_destroy (&ctx->id_hash, NULL);
mutt_clear_threads (ctx);
for (i = 0; i < ctx->msgcount; i++)
mutt_free_header (&ctx->hdrs[i]);
FREE (&ctx->hdrs);
FREE (&ctx->v2r);
FREE (&ctx->path);
FREE (&ctx->pattern);
if (ctx->limit_pattern)
mutt_pattern_free (&ctx->limit_pattern);
safe_fclose (&ctx->fp);
memset (ctx, 0, sizeof (CONTEXT));
}
/* save changes to disk */
static int sync_mailbox (CONTEXT *ctx, int *index_hint)
{
BUFFY *tmp = NULL;
int rc = -1;
if (!ctx->quiet)
mutt_message (_("Writing %s..."), ctx->path);
switch (ctx->magic)
{
case M_MBOX:
case M_MMDF:
rc = mbox_sync_mailbox (ctx, index_hint);
if (option(OPTCHECKMBOXSIZE))
tmp = mutt_find_mailbox (ctx->path);
break;
case M_MH:
case M_MAILDIR:
rc = mh_sync_mailbox (ctx, index_hint);
break;
#ifdef USE_IMAP
case M_IMAP:
/* extra argument means EXPUNGE */
rc = imap_sync_mailbox (ctx, 1, index_hint);
break;
#endif /* USE_IMAP */
#ifdef USE_POP
case M_POP:
rc = pop_sync_mailbox (ctx, index_hint);
break;
#endif /* USE_POP */
}
#if 0
if (!ctx->quiet && !ctx->shutup && rc == -1)
mutt_error ( _("Could not synchronize mailbox %s!"), ctx->path);
#endif
if (tmp && tmp->new == 0)
mutt_update_mailbox (tmp);
return rc;
}
/* save changes and close mailbox */
int mx_close_mailbox (CONTEXT *ctx, int *index_hint)
{
int i, move_messages = 0, purge = 1, read_msgs = 0;
int check;
int isSpool = 0;
CONTEXT f;
char mbox[_POSIX_PATH_MAX];
char buf[SHORT_STRING];
if (!ctx) return 0;
ctx->closing = 1;
if (ctx->readonly || ctx->dontwrite)
{
/* mailbox is readonly or we don't want to write */
mx_fastclose_mailbox (ctx);
return 0;
}
if (ctx->append)
{
/* mailbox was opened in write-mode */
if (ctx->magic == M_MBOX || ctx->magic == M_MMDF)
mbox_close_mailbox (ctx);
else
mx_fastclose_mailbox (ctx);
return 0;
}
for (i = 0; i < ctx->msgcount; i++)
{
if (!ctx->hdrs[i]->deleted && ctx->hdrs[i]->read
&& !(ctx->hdrs[i]->flagged && option (OPTKEEPFLAGGED)))
read_msgs++;
}
if (read_msgs && quadoption (OPT_MOVE) != M_NO)
{
char *p;
if ((p = mutt_find_hook (M_MBOXHOOK, ctx->path)))
{
isSpool = 1;
strfcpy (mbox, p, sizeof (mbox));
}
else
{
strfcpy (mbox, NONULL(Inbox), sizeof (mbox));
isSpool = mutt_is_spool (ctx->path) && !mutt_is_spool (mbox);
}
if (isSpool && *mbox)
{
mutt_expand_path (mbox, sizeof (mbox));
snprintf (buf, sizeof (buf), _("Move read messages to %s?"), mbox);
if ((move_messages = query_quadoption (OPT_MOVE, buf)) == -1)
{
ctx->closing = 0;
return (-1);
}
}
}
/*
* There is no point in asking whether or not to purge if we are
* just marking messages as "trash".
*/
if (ctx->deleted && !(ctx->magic == M_MAILDIR && option (OPTMAILDIRTRASH)))
{
snprintf (buf, sizeof (buf), ctx->deleted == 1
? _("Purge %d deleted message?") : _("Purge %d deleted messages?"),
ctx->deleted);
if ((purge = query_quadoption (OPT_DELETE, buf)) < 0)
{
ctx->closing = 0;
return (-1);
}
}
if (option (OPTMARKOLD))
{
for (i = 0; i < ctx->msgcount; i++)
{
if (!ctx->hdrs[i]->deleted && !ctx->hdrs[i]->old && !ctx->hdrs[i]->read)
mutt_set_flag (ctx, ctx->hdrs[i], M_OLD, 1);
}
}
if (move_messages)
{
if (!ctx->quiet)
mutt_message (_("Moving read messages to %s..."), mbox);
#ifdef USE_IMAP
/* try to use server-side copy first */
i = 1;
if (ctx->magic == M_IMAP && mx_is_imap (mbox))
{
/* tag messages for moving, and clear old tags, if any */
for (i = 0; i < ctx->msgcount; i++)
if (ctx->hdrs[i]->read && !ctx->hdrs[i]->deleted
&& !(ctx->hdrs[i]->flagged && option (OPTKEEPFLAGGED)))
ctx->hdrs[i]->tagged = 1;
else
ctx->hdrs[i]->tagged = 0;
i = imap_copy_messages (ctx, NULL, mbox, 1);
}
if (i == 0) /* success */
mutt_clear_error ();
else if (i == -1) /* horrible error, bail */
{
ctx->closing=0;
return -1;
}
else /* use regular append-copy mode */
#endif
{
if (mx_open_mailbox (mbox, M_APPEND, &f) == NULL)
{
ctx->closing = 0;
return -1;
}
for (i = 0; i < ctx->msgcount; i++)
{
if (ctx->hdrs[i]->read && !ctx->hdrs[i]->deleted
&& !(ctx->hdrs[i]->flagged && option (OPTKEEPFLAGGED)))
{
if (mutt_append_message (&f, ctx, ctx->hdrs[i], 0, CH_UPDATE_LEN) == 0)
{
mutt_set_flag (ctx, ctx->hdrs[i], M_DELETE, 1);
}
else
{
mx_close_mailbox (&f, NULL);
ctx->closing = 0;
return -1;
}
}
}
mx_close_mailbox (&f, NULL);
}
}
else if (!ctx->changed && ctx->deleted == 0)
{
if (!ctx->quiet)
mutt_message _("Mailbox is unchanged.");
if (ctx->magic == M_MBOX || ctx->magic == M_MMDF)
mbox_reset_atime (ctx, NULL);
mx_fastclose_mailbox (ctx);
return 0;
}
#ifdef USE_IMAP
/* allow IMAP to preserve the deleted flag across sessions */
if (ctx->magic == M_IMAP)
{
if ((check = imap_sync_mailbox (ctx, purge, index_hint)) != 0)
{
ctx->closing = 0;
return check;
}
}
else
#endif
{
if (!purge)
{
for (i = 0; i < ctx->msgcount; i++)
ctx->hdrs[i]->deleted = 0;
ctx->deleted = 0;
}
if (ctx->changed || ctx->deleted)
{
if ((check = sync_mailbox (ctx, index_hint)) != 0)
{
ctx->closing = 0;
return check;
}
}
}
if (!ctx->quiet)
{
if (move_messages)
mutt_message (_("%d kept, %d moved, %d deleted."),
ctx->msgcount - ctx->deleted, read_msgs, ctx->deleted);
else
mutt_message (_("%d kept, %d deleted."),
ctx->msgcount - ctx->deleted, ctx->deleted);
}
if (ctx->msgcount == ctx->deleted &&
(ctx->magic == M_MMDF || ctx->magic == M_MBOX) &&
!mutt_is_spool(ctx->path) && !option (OPTSAVEEMPTY))
mx_unlink_empty (ctx->path);
mx_fastclose_mailbox (ctx);
return 0;
}
/* update a Context structure's internal tables. */
void mx_update_tables(CONTEXT *ctx, int committing)
{
int i, j;
/* update memory to reflect the new state of the mailbox */
ctx->vcount = 0;
ctx->vsize = 0;
ctx->tagged = 0;
ctx->deleted = 0;
ctx->new = 0;
ctx->unread = 0;
ctx->changed = 0;
ctx->flagged = 0;
#define this_body ctx->hdrs[j]->content
for (i = 0, j = 0; i < ctx->msgcount; i++)
{
if ((committing && (!ctx->hdrs[i]->deleted ||
(ctx->magic == M_MAILDIR && option (OPTMAILDIRTRASH)))) ||
(!committing && ctx->hdrs[i]->active))
{
if (i != j)
{
ctx->hdrs[j] = ctx->hdrs[i];
ctx->hdrs[i] = NULL;
}
ctx->hdrs[j]->msgno = j;
if (ctx->hdrs[j]->virtual != -1)
{
ctx->v2r[ctx->vcount] = j;
ctx->hdrs[j]->virtual = ctx->vcount++;
ctx->vsize += this_body->length + this_body->offset -
this_body->hdr_offset;
}
if (committing)
ctx->hdrs[j]->changed = 0;
else if (ctx->hdrs[j]->changed)
ctx->changed++;
if (!committing || (ctx->magic == M_MAILDIR && option (OPTMAILDIRTRASH)))
{
if (ctx->hdrs[j]->deleted)
ctx->deleted++;
}
if (ctx->hdrs[j]->tagged)
ctx->tagged++;
if (ctx->hdrs[j]->flagged)
ctx->flagged++;
if (!ctx->hdrs[j]->read)
{
ctx->unread++;
if (!ctx->hdrs[j]->old)
ctx->new++;
}
j++;
}
else
{
if (ctx->magic == M_MH || ctx->magic == M_MAILDIR)
ctx->size -= (ctx->hdrs[i]->content->length +
ctx->hdrs[i]->content->offset -
ctx->hdrs[i]->content->hdr_offset);
/* remove message from the hash tables */
if (ctx->subj_hash && ctx->hdrs[i]->env->real_subj)
hash_delete (ctx->subj_hash, ctx->hdrs[i]->env->real_subj, ctx->hdrs[i], NULL);
if (ctx->id_hash && ctx->hdrs[i]->env->message_id)
hash_delete (ctx->id_hash, ctx->hdrs[i]->env->message_id, ctx->hdrs[i], NULL);
mutt_free_header (&ctx->hdrs[i]);
}
}
#undef this_body
ctx->msgcount = j;
}
/* save changes to mailbox
*
* return values:
* 0 success
* -1 error
*/
int mx_sync_mailbox (CONTEXT *ctx, int *index_hint)
{
int rc, i;
int purge = 1;
int msgcount, deleted;
if (ctx->dontwrite)
{
char buf[STRING], tmp[STRING];
if (km_expand_key (buf, sizeof(buf),
km_find_func (MENU_MAIN, OP_TOGGLE_WRITE)))
snprintf (tmp, sizeof(tmp), _(" Press '%s' to toggle write"), buf);
else
strfcpy (tmp, _("Use 'toggle-write' to re-enable write!"), sizeof(tmp));
mutt_error (_("Mailbox is marked unwritable. %s"), tmp);
return -1;
}
else if (ctx->readonly)
{
mutt_error _("Mailbox is read-only.");
return -1;
}
if (!ctx->changed && !ctx->deleted)
{
if (!ctx->quiet)
mutt_message _("Mailbox is unchanged.");
return (0);
}
if (ctx->deleted)
{
char buf[SHORT_STRING];
snprintf (buf, sizeof (buf), ctx->deleted == 1
? _("Purge %d deleted message?") : _("Purge %d deleted messages?"),
ctx->deleted);
if ((purge = query_quadoption (OPT_DELETE, buf)) < 0)
return (-1);
else if (purge == M_NO)
{
if (!ctx->changed)
return 0; /* nothing to do! */
/* let IMAP servers hold on to D flags */
if (ctx->magic != M_IMAP)
{
for (i = 0 ; i < ctx->msgcount ; i++)
ctx->hdrs[i]->deleted = 0;
ctx->deleted = 0;
}
}
else if (ctx->last_tag && ctx->last_tag->deleted)
ctx->last_tag = NULL; /* reset last tagged msg now useless */
}
/* really only for IMAP - imap_sync_mailbox results in a call to
* mx_update_tables, so ctx->deleted is 0 when it comes back */
msgcount = ctx->msgcount;
deleted = ctx->deleted;
#ifdef USE_IMAP
if (ctx->magic == M_IMAP)
rc = imap_sync_mailbox (ctx, purge, index_hint);
else
#endif
rc = sync_mailbox (ctx, index_hint);
if (rc == 0)
{
#ifdef USE_IMAP
if (ctx->magic == M_IMAP && !purge)
{
if (!ctx->quiet)
mutt_message _("Mailbox checkpointed.");
}
else
#endif
{
if (!ctx->quiet)
mutt_message (_("%d kept, %d deleted."), msgcount - deleted,
deleted);
}
mutt_sleep (0);
if (ctx->msgcount == ctx->deleted &&
(ctx->magic == M_MBOX || ctx->magic == M_MMDF) &&
!mutt_is_spool (ctx->path) && !option (OPTSAVEEMPTY))
{
unlink (ctx->path);
mx_fastclose_mailbox (ctx);
return 0;
}
/* if we haven't deleted any messages, we don't need to resort */
/* ... except for certain folder formats which need "unsorted"
* sort order in order to synchronize folders.
*
* MH and maildir are safe. mbox-style seems to need re-sorting,
* at least with the new threading code.
*/
if (purge || (ctx->magic != M_MAILDIR && ctx->magic != M_MH))
{
/* IMAP does this automatically after handling EXPUNGE */
if (ctx->magic != M_IMAP)
{
mx_update_tables (ctx, 1);
mutt_sort_headers (ctx, 1); /* rethread from scratch */
}
}
}
return (rc);
}
/* {maildir,mh}_open_new_message are in mh.c. */
static int mbox_open_new_message (MESSAGE *msg, CONTEXT *dest, HEADER *hdr)
{
msg->fp = dest->fp;
return 0;
}
#ifdef USE_IMAP
static int imap_open_new_message (MESSAGE *msg, CONTEXT *dest, HEADER *hdr)
{
char tmp[_POSIX_PATH_MAX];
mutt_mktemp (tmp, sizeof (tmp));
if ((msg->fp = safe_fopen (tmp, "w")) == NULL)
{
mutt_perror (tmp);
return (-1);
}
msg->path = safe_strdup(tmp);
return 0;
}
#endif
/* args:
* dest destintation mailbox
* hdr message being copied (required for maildir support, because
* the filename depends on the message flags)
*/
MESSAGE *mx_open_new_message (CONTEXT *dest, HEADER *hdr, int flags)
{
MESSAGE *msg;
int (*func) (MESSAGE *, CONTEXT *, HEADER *);
ADDRESS *p = NULL;
switch (dest->magic)
{
case M_MMDF:
case M_MBOX:
func = mbox_open_new_message;
break;
case M_MAILDIR:
func = maildir_open_new_message;
break;
case M_MH:
func = mh_open_new_message;
break;
#ifdef USE_IMAP
case M_IMAP:
func = imap_open_new_message;
break;
#endif
default:
dprint (1, (debugfile, "mx_open_new_message(): function unimplemented for mailbox type %d.\n",
dest->magic));
return (NULL);
}
msg = safe_calloc (1, sizeof (MESSAGE));
msg->magic = dest->magic;
msg->write = 1;
if (hdr)
{
msg->flags.flagged = hdr->flagged;
msg->flags.replied = hdr->replied;
msg->flags.read = hdr->read;
msg->received = hdr->received;
}
if(msg->received == 0)
time(&msg->received);
if (func (msg, dest, hdr) == 0)
{
if (dest->magic == M_MMDF)
fputs (MMDF_SEP, msg->fp);
if ((msg->magic == M_MBOX || msg->magic == M_MMDF) &&
flags & M_ADD_FROM)
{
if (hdr)
{
if (hdr->env->return_path)
p = hdr->env->return_path;
else if (hdr->env->sender)
p = hdr->env->sender;
else
p = hdr->env->from;
}
fprintf (msg->fp, "From %s %s", p ? p->mailbox : NONULL(Username), ctime (&msg->received));
}
}
else
FREE (&msg);
return msg;
}
/* check for new mail */
int mx_check_mailbox (CONTEXT *ctx, int *index_hint, int lock)
{
int rc;
if (ctx)
{
if (ctx->locked) lock = 0;
switch (ctx->magic)
{
case M_MBOX:
case M_MMDF:
if (lock)
{
mutt_block_signals ();
if (mbox_lock_mailbox (ctx, 0, 0) == -1)
{
mutt_unblock_signals ();
return M_LOCKED;
}
}
rc = mbox_check_mailbox (ctx, index_hint);
if (lock)
{
mutt_unblock_signals ();
mbox_unlock_mailbox (ctx);
}
return rc;
case M_MH:
return (mh_check_mailbox (ctx, index_hint));
case M_MAILDIR:
return (maildir_check_mailbox (ctx, index_hint));
#ifdef USE_IMAP
case M_IMAP:
/* caller expects that mailbox may change */
imap_allow_reopen (ctx);
rc = imap_check_mailbox (ctx, index_hint, 0);
imap_disallow_reopen (ctx);
return rc;
#endif /* USE_IMAP */
#ifdef USE_POP
case M_POP:
return (pop_check_mailbox (ctx, index_hint));
#endif /* USE_POP */
}
}
dprint (1, (debugfile, "mx_check_mailbox: null or invalid context.\n"));
return (-1);
}
/* return a stream pointer for a message */
MESSAGE *mx_open_message (CONTEXT *ctx, int msgno)
{
MESSAGE *msg;
msg = safe_calloc (1, sizeof (MESSAGE));
switch (msg->magic = ctx->magic)
{
case M_MBOX:
case M_MMDF:
msg->fp = ctx->fp;
break;
case M_MH:
case M_MAILDIR:
{
HEADER *cur = ctx->hdrs[msgno];
char path[_POSIX_PATH_MAX];
snprintf (path, sizeof (path), "%s/%s", ctx->path, cur->path);
if ((msg->fp = fopen (path, "r")) == NULL && errno == ENOENT &&
ctx->magic == M_MAILDIR)
msg->fp = maildir_open_find_message (ctx->path, cur->path);
if (msg->fp == NULL)
{
mutt_perror (path);
dprint (1, (debugfile, "mx_open_message: fopen: %s: %s (errno %d).\n",
path, strerror (errno), errno));
FREE (&msg);
}
}
break;
#ifdef USE_IMAP
case M_IMAP:
{
if (imap_fetch_message (msg, ctx, msgno) != 0)
FREE (&msg);
break;
}
#endif /* USE_IMAP */
#ifdef USE_POP
case M_POP:
{
if (pop_fetch_message (msg, ctx, msgno) != 0)
FREE (&msg);
break;
}
#endif /* USE_POP */
default:
dprint (1, (debugfile, "mx_open_message(): function not implemented for mailbox type %d.\n", ctx->magic));
FREE (&msg);
break;
}
return (msg);
}
/* commit a message to a folder */
int mx_commit_message (MESSAGE *msg, CONTEXT *ctx)
{
int r = 0;
if (!(msg->write && ctx->append))
{
dprint (1, (debugfile, "mx_commit_message(): msg->write = %d, ctx->append = %d\n",
msg->write, ctx->append));
return -1;
}
switch (msg->magic)
{
case M_MMDF:
{
if (fputs (MMDF_SEP, msg->fp) == EOF)
r = -1;
break;
}
case M_MBOX:
{
if (fputc ('\n', msg->fp) == EOF)
r = -1;
break;
}
#ifdef USE_IMAP
case M_IMAP:
{
if ((r = safe_fclose (&msg->fp)) == 0)
r = imap_append_message (ctx, msg);
break;
}
#endif
case M_MAILDIR:
{
r = maildir_commit_message (ctx, msg, NULL);
break;
}
case M_MH:
{
r = mh_commit_message (ctx, msg, NULL);
break;
}
}
if (r == 0 && (ctx->magic == M_MBOX || ctx->magic == M_MMDF)
&& (fflush (msg->fp) == EOF || fsync (fileno (msg->fp)) == -1))
{
mutt_perror _("Can't write message");
r = -1;
}
return r;
}
/* close a pointer to a message */
int mx_close_message (MESSAGE **msg)
{
int r = 0;
if ((*msg)->magic == M_MH || (*msg)->magic == M_MAILDIR
|| (*msg)->magic == M_IMAP || (*msg)->magic == M_POP)
{
r = safe_fclose (&(*msg)->fp);
}
else
(*msg)->fp = NULL;
if ((*msg)->path)
{
dprint (1, (debugfile, "mx_close_message (): unlinking %s\n",
(*msg)->path));
unlink ((*msg)->path);
FREE (&(*msg)->path);
}
FREE (msg); /* __FREE_CHECKED__ */
return (r);
}
void mx_alloc_memory (CONTEXT *ctx)
{
int i;
size_t s = MAX (sizeof (HEADER *), sizeof (int));
if ((ctx->hdrmax + 25) * s < ctx->hdrmax * s)
{
mutt_error _("Integer overflow -- can't allocate memory.");
sleep (1);
mutt_exit (1);
}
if (ctx->hdrs)
{
safe_realloc (&ctx->hdrs, sizeof (HEADER *) * (ctx->hdrmax += 25));
safe_realloc (&ctx->v2r, sizeof (int) * ctx->hdrmax);
}
else
{
ctx->hdrs = safe_calloc ((ctx->hdrmax += 25), sizeof (HEADER *));
ctx->v2r = safe_calloc (ctx->hdrmax, sizeof (int));
}
for (i = ctx->msgcount ; i < ctx->hdrmax ; i++)
{
ctx->hdrs[i] = NULL;
ctx->v2r[i] = -1;
}
}
/* this routine is called to update the counts in the context structure for
* the last message header parsed.
*/
void mx_update_context (CONTEXT *ctx, int new_messages)
{
HEADER *h;
int msgno;
for (msgno = ctx->msgcount - new_messages; msgno < ctx->msgcount; msgno++)
{
h = ctx->hdrs[msgno];
if (WithCrypto)
{
/* NOTE: this _must_ be done before the check for mailcap! */
h->security = crypt_query (h->content);
}
if (!ctx->pattern)
{
ctx->v2r[ctx->vcount] = msgno;
h->virtual = ctx->vcount++;
}
else
h->virtual = -1;
h->msgno = msgno;
if (h->env->supersedes)
{
HEADER *h2;
if (!ctx->id_hash)
ctx->id_hash = mutt_make_id_hash (ctx);
h2 = hash_find (ctx->id_hash, h->env->supersedes);
/* FREE (&h->env->supersedes); should I ? */
if (h2)
{
h2->superseded = 1;
if (option (OPTSCORE))
mutt_score_message (ctx, h2, 1);
}
}
/* add this message to the hash tables */
if (ctx->id_hash && h->env->message_id)
hash_insert (ctx->id_hash, h->env->message_id, h, 0);
if (ctx->subj_hash && h->env->real_subj)
hash_insert (ctx->subj_hash, h->env->real_subj, h, 1);
if (option (OPTSCORE))
mutt_score_message (ctx, h, 0);
if (h->changed)
ctx->changed = 1;
if (h->flagged)
ctx->flagged++;
if (h->deleted)
ctx->deleted++;
if (!h->read)
{
ctx->unread++;
if (!h->old)
ctx->new++;
}
}
}
/*
* Return:
* 1 if the specified mailbox contains 0 messages.
* 0 if the mailbox contains messages
* -1 on error
*/
int mx_check_empty (const char *path)
{
switch (mx_get_magic (path))
{
case M_MBOX:
case M_MMDF:
return mbox_check_empty (path);
case M_MH:
return mh_check_empty (path);
case M_MAILDIR:
return maildir_check_empty (path);
default:
errno = EINVAL;
return -1;
}
/* not reached */
}
/* vim: set sw=2: */