/* Read a MH/maildir style mailbox.
*
* args:
* ctx [IN/OUT] context for this mailbox
* subdir [IN] NULL for MH mailboxes, otherwise the subdir of the
* maildir mailbox to read from
*/
int mh_read_dir (CONTEXT *ctx, const char *subdir)
{
struct maildir *md;
struct mh_sequences mhs;
struct maildir **last;
int count;
md = NULL;
last = &md;
count = 0;
memset (&mhs, 0, sizeof (mhs));
maildir_update_mtime(ctx);
if(maildir_parse_dir(ctx, &last, subdir, &count) == -1)
return -1;
if (ctx->magic == M_MH)
{
mh_read_sequences (&mhs, ctx->path);
mh_update_maildir (md, &mhs);
mhs_free_sequences (&mhs);
}
maildir_move_to_context(ctx, &md);
return 0;
}
int mh_buffy (const char *path)
{
int i, r = 0;
struct mh_sequences mhs;
memset (&mhs, 0, sizeof (mhs));
mh_read_sequences (&mhs, path);
for (i = 0; !r && i <= mhs.max; i++)
if (mhs_check (&mhs, i) & MH_SEQ_UNSEEN)
r = 1;
mhs_free_sequences (&mhs);
return r;
}
/**
* mh_read_sequences - Read a set of MH sequences
* @param mhs Existing sequences
* @param path File to read from
* @retval 0 Success
* @retval -1 Error
*/
int mh_read_sequences(struct MhSequences *mhs, const char *path)
{
int line = 1;
char *buf = NULL;
size_t sz = 0;
MhSeqFlags flags;
int first, last, rc = 0;
char pathname[PATH_MAX];
snprintf(pathname, sizeof(pathname), "%s/.mh_sequences", path);
FILE *fp = fopen(pathname, "r");
if (!fp)
return 0; /* yes, ask callers to silently ignore the error */
while ((buf = mutt_file_read_line(buf, &sz, fp, &line, 0)))
{
char *t = strtok(buf, " \t:");
if (!t)
continue;
if (mutt_str_strcmp(t, C_MhSeqUnseen) == 0)
flags = MH_SEQ_UNSEEN;
else if (mutt_str_strcmp(t, C_MhSeqFlagged) == 0)
flags = MH_SEQ_FLAGGED;
else if (mutt_str_strcmp(t, C_MhSeqReplied) == 0)
flags = MH_SEQ_REPLIED;
else /* unknown sequence */
continue;
while ((t = strtok(NULL, " \t:")))
{
if (mh_read_token(t, &first, &last) < 0)
{
mhs_free_sequences(mhs);
rc = -1;
goto out;
}
for (; first <= last; first++)
mhs_set(mhs, first, flags);
}
}
rc = 0;
out:
FREE(&buf);
mutt_file_fclose(&fp);
return rc;
}
void mh_update_sequences (CONTEXT *ctx)
{
FILE *ofp, *nfp;
char sequences[_POSIX_PATH_MAX];
char *tmpfname;
char *buff = NULL;
char *p;
size_t s;
int l = 0;
int i;
int unseen = 0;
int flagged = 0;
int replied = 0;
char seq_unseen[STRING];
char seq_replied[STRING];
char seq_flagged[STRING];
struct mh_sequences mhs;
memset (&mhs, 0, sizeof (mhs));
snprintf (seq_unseen, sizeof (seq_unseen), "%s:", NONULL (MhUnseen));
snprintf (seq_replied, sizeof (seq_replied), "%s:", NONULL (MhReplied));
snprintf (seq_flagged, sizeof (seq_flagged), "%s:", NONULL (MhFlagged));
if (mh_mkstemp (ctx, &nfp, &tmpfname) != 0)
{
/* error message? */
return;
}
snprintf (sequences, sizeof (sequences), "%s/.mh_sequences", ctx->path);
/* first, copy unknown sequences */
if ((ofp = fopen (sequences, "r")))
{
while ((buff = mutt_read_line (buff, &s, ofp, &l)))
{
if (!mutt_strncmp (buff, seq_unseen, mutt_strlen (seq_unseen)))
continue;
if (!mutt_strncmp (buff, seq_flagged, mutt_strlen (seq_flagged)))
continue;
if (!mutt_strncmp (buff, seq_replied, mutt_strlen (seq_replied)))
continue;
fprintf (nfp, "%s\n", buff);
}
}
safe_fclose (&ofp);
/* now, update our unseen, flagged, and replied sequences */
for (l = 0; l < ctx->msgcount; l++)
{
if (ctx->hdrs[l]->deleted)
continue;
if ((p = strrchr (ctx->hdrs[l]->path, '/')))
p++;
else
p = ctx->hdrs[l]->path;
i = atoi (p);
if (!ctx->hdrs[l]->read)
{
mhs_set (&mhs, i, MH_SEQ_UNSEEN);
unseen++;
}
if (ctx->hdrs[l]->flagged)
{
mhs_set (&mhs, i, MH_SEQ_FLAGGED);
flagged++;
}
if (ctx->hdrs[l]->replied)
{
mhs_set (&mhs, i, MH_SEQ_REPLIED);
replied++;
}
}
/* write out the new sequences */
if (unseen) mhs_write_one_sequence (nfp, &mhs, MH_SEQ_UNSEEN, NONULL (MhUnseen));
if (flagged) mhs_write_one_sequence (nfp, &mhs, MH_SEQ_FLAGGED, NONULL (MhFlagged));
if (replied) mhs_write_one_sequence (nfp, &mhs, MH_SEQ_REPLIED, NONULL (MhReplied));
mhs_free_sequences (&mhs);
/* try to commit the changes - no guarantee here */
safe_fclose (&nfp);
unlink (sequences);
if (safe_rename (tmpfname, sequences) != 0)
{
/* report an error? */
unlink (tmpfname);
}
safe_free ((void **) &tmpfname);
}
int mh_check_mailbox(CONTEXT *ctx, int *index_hint)
{
char buf[_POSIX_PATH_MAX], b1[LONG_STRING], b2[LONG_STRING];
struct stat st, st_cur;
short modified = 0, have_new = 0, occult = 0;
struct maildir *md, *p;
struct maildir **last;
HASH *fnames;
int i, j;
if(!option (OPTCHECKNEW))
return 0;
if(ctx->magic == M_MH)
{
strfcpy(buf, ctx->path, sizeof(buf));
if(stat(buf, &st) == -1)
return -1;
/* create .mh_sequences when there isn't one. */
snprintf (buf, sizeof (buf), "%s/.mh_sequences", ctx->path);
if (stat (buf, &st_cur) == -1)
{
if (errno == ENOENT)
{
char *tmp;
FILE *fp = NULL;
if (mh_mkstemp (ctx, &fp, &tmp) == 0)
{
safe_fclose (&fp);
if (safe_rename (tmp, buf) == -1)
unlink (tmp);
safe_free ((void **) &tmp);
}
if (stat (buf, &st_cur) == -1)
modified = 1;
}
else
modified = 1;
}
}
else if(ctx->magic == M_MAILDIR)
{
snprintf(buf, sizeof(buf), "%s/new", ctx->path);
if(stat(buf, &st) == -1)
return -1;
snprintf(buf, sizeof(buf), "%s/cur", ctx->path);
if(stat(buf, &st_cur) == -1) /* XXX - name is bad. */
modified = 1;
}
if(!modified && ctx->magic == M_MAILDIR && st_cur.st_mtime > ctx->mtime_cur)
modified = 1;
if(!modified && ctx->magic == M_MH && (st.st_mtime > ctx->mtime || st_cur.st_mtime > ctx->mtime_cur))
modified = 1;
if(modified || (ctx->magic == M_MAILDIR && st.st_mtime > ctx->mtime))
have_new = 1;
if(!modified && !have_new)
return 0;
ctx->mtime_cur = st_cur.st_mtime;
ctx->mtime = st.st_mtime;
#if 0
if(Sort != SORT_ORDER)
{
short old_sort;
old_sort = Sort;
Sort = SORT_ORDER;
mutt_sort_headers(ctx, 1);
Sort = old_sort;
}
#endif
md = NULL;
last = &md;
if(ctx->magic == M_MAILDIR)
{
if(have_new)
maildir_parse_dir(ctx, &last, "new", NULL);
if(modified)
maildir_parse_dir(ctx, &last, "cur", NULL);
}
else if(ctx->magic == M_MH)
{
struct mh_sequences mhs;
memset (&mhs, 0, sizeof (mhs));
maildir_parse_dir (ctx, &last, NULL, NULL);
mh_read_sequences (&mhs, ctx->path);
mh_update_maildir (md, &mhs);
mhs_free_sequences (&mhs);
}
/* check for modifications and adjust flags */
fnames = hash_create (1031);
for(p = md; p; p = p->next)
{
if(ctx->magic == M_MAILDIR)
{
maildir_canon_filename(b2, p->h->path, sizeof(b2));
p->canon_fname = safe_strdup(b2);
}
else
p->canon_fname = safe_strdup(p->h->path);
hash_insert(fnames, p->canon_fname, p, 0);
}
for(i = 0; i < ctx->msgcount; i++)
{
ctx->hdrs[i]->active = 0;
if(ctx->magic == M_MAILDIR)
maildir_canon_filename(b1, ctx->hdrs[i]->path, sizeof(b1));
else
strfcpy(b1, ctx->hdrs[i]->path, sizeof(b1));
dprint(2, (debugfile, "%s:%d: mh_check_mailbox(): Looking for %s.\n", __FILE__, __LINE__, b1));
if((p = hash_find(fnames, b1)) && p->h &&
mbox_strict_cmp_headers(ctx->hdrs[i], p->h))
{
/* found the right message */
dprint(2, (debugfile, "%s:%d: Found. Flags before: %s%s%s%s%s\n", __FILE__, __LINE__,
ctx->hdrs[i]->flagged ? "f" : "",
ctx->hdrs[i]->deleted ? "D" : "",
ctx->hdrs[i]->replied ? "r" : "",
ctx->hdrs[i]->old ? "O" : "",
ctx->hdrs[i]->read ? "R" : ""));
if(mutt_strcmp(ctx->hdrs[i]->path, p->h->path))
mutt_str_replace (&ctx->hdrs[i]->path, p->h->path);
if(modified)
{
if(!ctx->hdrs[i]->changed)
{
mutt_set_flag (ctx, ctx->hdrs[i], M_FLAG, p->h->flagged);
mutt_set_flag (ctx, ctx->hdrs[i], M_REPLIED, p->h->replied);
mutt_set_flag (ctx, ctx->hdrs[i], M_READ, p->h->read);
}
mutt_set_flag(ctx, ctx->hdrs[i], M_OLD, p->h->old);
}
ctx->hdrs[i]->active = 1;
dprint(2, (debugfile, "%s:%d: Flags after: %s%s%s%s%s\n", __FILE__, __LINE__,
ctx->hdrs[i]->flagged ? "f" : "",
ctx->hdrs[i]->deleted ? "D" : "",
ctx->hdrs[i]->replied ? "r" : "",
ctx->hdrs[i]->old ? "O" : "",
ctx->hdrs[i]->read ? "R" : ""));
mutt_free_header(&p->h);
}
else if (ctx->magic == M_MAILDIR && !modified && !strncmp("cur/", ctx->hdrs[i]->path, 4))
{
/* If the cur/ part wasn't externally modified for a maildir
* type folder, assume the message is still active. Actually,
* we simply don't know.
*/
ctx->hdrs[i]->active = 1;
}
else if (modified || (ctx->magic == M_MAILDIR && !strncmp("new/", ctx->hdrs[i]->path, 4)))
{
/* Mailbox was modified, or a new message vanished. */
/* Note: This code will _not_ apply for a new message which
* is just moved to cur/, as this would modify cur's time
* stamp and lead to modified == 1. Thus, we'd have parsed
* the complete folder above, and the message would have
* been found in the look-up table.
*/
dprint(2, (debugfile, "%s:%d: Not found. Flags were: %s%s%s%s%s\n", __FILE__, __LINE__,
ctx->hdrs[i]->flagged ? "f" : "",
ctx->hdrs[i]->deleted ? "D" : "",
ctx->hdrs[i]->replied ? "r" : "",
ctx->hdrs[i]->old ? "O" : "",
ctx->hdrs[i]->read ? "R" : ""));
occult = 1;
}
}
/* destroy the file name hash */
hash_destroy(&fnames, NULL);
/* If we didn't just get new mail, update the tables. */
if(modified || occult)
{
short old_sort;
int old_count;
#ifndef LIBMUTT
if (Sort != SORT_ORDER)
{
old_sort = Sort;
Sort = SORT_ORDER;
mutt_sort_headers (ctx, 1);
Sort = old_sort;
}
#endif
old_count = ctx->msgcount;
for (i = 0, j = 0; i < old_count; i++)
{
if (ctx->hdrs[i]->active && index_hint && *index_hint == i)
*index_hint = j;
if (ctx->hdrs[i]->active)
ctx->hdrs[i]->index = j++;
}
mx_update_tables(ctx, 0);
}
/* Incorporate new messages */
maildir_move_to_context(ctx, &md);
return (modified || occult) ? M_REOPENED : have_new ? M_NEW_MAIL : 0;
}
/**
* mh_mbox_check - Implements MxOps::mbox_check()
*
* This function handles arrival of new mail and reopening of mh/maildir
* folders. Things are getting rather complex because we don't have a
* well-defined "mailbox order", so the tricks from mbox.c and mx.c won't work
* here.
*
* Don't change this code unless you _really_ understand what happens.
*/
int mh_mbox_check(struct Mailbox *m, int *index_hint)
{
if (!m)
return -1;
char buf[PATH_MAX];
struct stat st, st_cur;
bool modified = false, occult = false, flags_changed = false;
int num_new = 0;
struct Maildir *md = NULL, *p = NULL;
struct Maildir **last = NULL;
struct MhSequences mhs = { 0 };
int count = 0;
struct Hash *fnames = NULL;
struct MaildirMboxData *mdata = maildir_mdata_get(m);
if (!C_CheckNew)
return 0;
mutt_str_strfcpy(buf, m->path, sizeof(buf));
if (stat(buf, &st) == -1)
return -1;
/* create .mh_sequences when there isn't one. */
snprintf(buf, sizeof(buf), "%s/.mh_sequences", m->path);
int i = stat(buf, &st_cur);
if ((i == -1) && (errno == ENOENT))
{
char *tmp = NULL;
FILE *fp = NULL;
if (mh_mkstemp(m, &fp, &tmp) == 0)
{
mutt_file_fclose(&fp);
if (mutt_file_safe_rename(tmp, buf) == -1)
unlink(tmp);
FREE(&tmp);
}
}
if ((i == -1) && (stat(buf, &st_cur) == -1))
modified = true;
if ((mutt_file_stat_timespec_compare(&st, MUTT_STAT_MTIME, &m->mtime) > 0) ||
(mutt_file_stat_timespec_compare(&st_cur, MUTT_STAT_MTIME, &mdata->mtime_cur) > 0))
{
modified = true;
}
if (!modified)
return 0;
/* Update the modification times on the mailbox.
*
* The monitor code notices changes in the open mailbox too quickly.
* In practice, this sometimes leads to all the new messages not being
* noticed during the SAME group of mtime stat updates. To work around
* the problem, don't update the stat times for a monitor caused check. */
#ifdef USE_INOTIFY
if (MonitorContextChanged)
MonitorContextChanged = 0;
else
#endif
{
mutt_file_get_stat_timespec(&mdata->mtime_cur, &st_cur, MUTT_STAT_MTIME);
mutt_file_get_stat_timespec(&m->mtime, &st, MUTT_STAT_MTIME);
}
md = NULL;
last = &md;
maildir_parse_dir(m, &last, NULL, &count, NULL);
maildir_delayed_parsing(m, &md, NULL);
if (mh_read_sequences(&mhs, m->path) < 0)
return -1;
mh_update_maildir(md, &mhs);
mhs_free_sequences(&mhs);
/* check for modifications and adjust flags */
fnames = mutt_hash_new(count, MUTT_HASH_NO_FLAGS);
for (p = md; p; p = p->next)
{
/* the hash key must survive past the header, which is freed below. */
p->canon_fname = mutt_str_strdup(p->email->path);
mutt_hash_insert(fnames, p->canon_fname, p);
}
for (i = 0; i < m->msg_count; i++)
{
m->emails[i]->active = false;
p = mutt_hash_find(fnames, m->emails[i]->path);
if (p && p->email && mutt_email_cmp_strict(m->emails[i], p->email))
{
m->emails[i]->active = true;
/* found the right message */
if (!m->emails[i]->changed)
if (maildir_update_flags(m, m->emails[i], p->email))
flags_changed = true;
mutt_email_free(&p->email);
}
else /* message has disappeared */
occult = true;
}
/* destroy the file name hash */
mutt_hash_free(&fnames);
/* If we didn't just get new mail, update the tables. */
if (occult)
mutt_mailbox_changed(m, MBN_RESORT);
/* Incorporate new messages */
num_new = maildir_move_to_mailbox(m, &md);
if (num_new > 0)
{
mutt_mailbox_changed(m, MBN_INVALID);
m->changed = true;
}
if (occult)
return MUTT_REOPENED;
if (num_new > 0)
return MUTT_NEW_MAIL;
if (flags_changed)
return MUTT_FLAGS;
return 0;
}
/**
* mh_mbox_check_stats - Implements MxOps::check_stats
*/
static int mh_mbox_check_stats(struct Mailbox *m, int flags)
{
struct MhSequences mhs = { 0 };
bool check_new = true;
bool rc = false;
DIR *dirp = NULL;
struct dirent *de = NULL;
/* when $mail_check_recent is set and the .mh_sequences file hasn't changed
* since the last m visit, there is no "new mail" */
if (C_MailCheckRecent && (mh_sequences_changed(m) <= 0))
{
rc = false;
check_new = false;
}
if (!check_new)
return 0;
if (mh_read_sequences(&mhs, m->path) < 0)
return false;
m->msg_count = 0;
m->msg_unread = 0;
m->msg_flagged = 0;
for (int i = mhs.max; i > 0; i--)
{
if ((mhs_check(&mhs, i) & MH_SEQ_FLAGGED))
m->msg_flagged++;
if (mhs_check(&mhs, i) & MH_SEQ_UNSEEN)
{
m->msg_unread++;
if (check_new)
{
/* if the first unseen message we encounter was in the m during the
* last visit, don't notify about it */
if (!C_MailCheckRecent || (mh_already_notified(m, i) == 0))
{
m->has_new = true;
rc = true;
}
/* Because we are traversing from high to low, we can stop
* checking for new mail after the first unseen message.
* Whether it resulted in "new mail" or not. */
check_new = false;
}
}
}
mhs_free_sequences(&mhs);
dirp = opendir(m->path);
if (dirp)
{
while ((de = readdir(dirp)))
{
if (*de->d_name == '.')
continue;
if (mh_valid_message(de->d_name))
m->msg_count++;
}
closedir(dirp);
}
return rc;
}
/**
* mh_update_sequences - Update sequence numbers
* @param m Mailbox
*
* XXX we don't currently remove deleted messages from sequences we don't know.
* Should we?
*/
void mh_update_sequences(struct Mailbox *m)
{
char sequences[PATH_MAX];
char *tmpfname = NULL;
char *buf = NULL;
char *p = NULL;
size_t s;
int l = 0;
int i;
int unseen = 0;
int flagged = 0;
int replied = 0;
char seq_unseen[256];
char seq_replied[256];
char seq_flagged[256];
struct MhSequences mhs = { 0 };
snprintf(seq_unseen, sizeof(seq_unseen), "%s:", NONULL(C_MhSeqUnseen));
snprintf(seq_replied, sizeof(seq_replied), "%s:", NONULL(C_MhSeqReplied));
snprintf(seq_flagged, sizeof(seq_flagged), "%s:", NONULL(C_MhSeqFlagged));
FILE *fp_new = NULL;
if (mh_mkstemp(m, &fp_new, &tmpfname) != 0)
{
/* error message? */
return;
}
snprintf(sequences, sizeof(sequences), "%s/.mh_sequences", m->path);
/* first, copy unknown sequences */
FILE *fp_old = fopen(sequences, "r");
if (fp_old)
{
while ((buf = mutt_file_read_line(buf, &s, fp_old, &l, 0)))
{
if (mutt_str_startswith(buf, seq_unseen, CASE_MATCH) ||
mutt_str_startswith(buf, seq_flagged, CASE_MATCH) ||
mutt_str_startswith(buf, seq_replied, CASE_MATCH))
continue;
fprintf(fp_new, "%s\n", buf);
}
}
mutt_file_fclose(&fp_old);
/* now, update our unseen, flagged, and replied sequences */
for (l = 0; l < m->msg_count; l++)
{
if (m->emails[l]->deleted)
continue;
p = strrchr(m->emails[l]->path, '/');
if (p)
p++;
else
p = m->emails[l]->path;
if (mutt_str_atoi(p, &i) < 0)
continue;
if (!m->emails[l]->read)
{
mhs_set(&mhs, i, MH_SEQ_UNSEEN);
unseen++;
}
if (m->emails[l]->flagged)
{
mhs_set(&mhs, i, MH_SEQ_FLAGGED);
flagged++;
}
if (m->emails[l]->replied)
{
mhs_set(&mhs, i, MH_SEQ_REPLIED);
replied++;
}
}
/* write out the new sequences */
if (unseen)
mhs_write_one_sequence(fp_new, &mhs, MH_SEQ_UNSEEN, NONULL(C_MhSeqUnseen));
if (flagged)
mhs_write_one_sequence(fp_new, &mhs, MH_SEQ_FLAGGED, NONULL(C_MhSeqFlagged));
if (replied)
mhs_write_one_sequence(fp_new, &mhs, MH_SEQ_REPLIED, NONULL(C_MhSeqReplied));
mhs_free_sequences(&mhs);
/* try to commit the changes - no guarantee here */
mutt_file_fclose(&fp_new);
unlink(sequences);
if (mutt_file_safe_rename(tmpfname, sequences) != 0)
{
/* report an error? */
unlink(tmpfname);
}
FREE(&tmpfname);
}