static void
maildir_mail_remove_sizes_from_filename(struct mail *mail,
enum mail_fetch_field field)
{
struct maildir_mailbox *mbox = (struct maildir_mailbox *)mail->box;
enum maildir_uidlist_rec_flag flags;
const char *fname;
uoff_t size;
char wrong_key;
if (mbox->storage->set->maildir_broken_filename_sizes) {
/* never try to fix sizes in maildir filenames */
return;
}
if (maildir_sync_lookup(mbox, mail->uid, &flags, &fname) <= 0)
return;
if (strchr(fname, MAILDIR_EXTRA_SEP) == NULL)
return;
if (field == MAIL_FETCH_VIRTUAL_SIZE &&
maildir_filename_get_size(fname, MAILDIR_EXTRA_VIRTUAL_SIZE,
&size)) {
wrong_key = 'W';
} else if (field == MAIL_FETCH_PHYSICAL_SIZE &&
maildir_filename_get_size(fname, MAILDIR_EXTRA_FILE_SIZE,
&size)) {
wrong_key = 'S';
} else {
/* the broken size isn't in filename */
return;
}
(void)maildir_file_do(mbox, mail->uid, do_fix_size, &wrong_key);
}
static int maildir_mail_get_physical_size(struct mail *_mail, uoff_t *size_r)
{
struct index_mail *mail = (struct index_mail *)_mail;
struct maildir_mailbox *mbox = (struct maildir_mailbox *)_mail->box;
struct index_mail_data *data = &mail->data;
struct stat st;
const char *path;
int ret;
if (maildir_uidlist_is_read(mbox->uidlist) ||
(_mail->box->flags & MAILBOX_FLAG_POP3_SESSION) != 0) {
/* try to get the size from uidlist (see virtual size above) */
if (maildir_quick_size_lookup(mail, FALSE,
&data->physical_size) < 0)
return -1;
}
if (data->physical_size == (uoff_t)-1) {
if (index_mail_get_physical_size(_mail, size_r) == 0) {
i_assert(mail->data.physical_size != (uoff_t)-1);
maildir_handle_size_caching(mail, TRUE, FALSE);
return 0;
}
if (maildir_quick_size_lookup(mail, FALSE,
&data->physical_size) < 0)
return -1;
}
if (data->physical_size != (uoff_t)-1) {
data->dont_cache_fetch_fields |= MAIL_FETCH_PHYSICAL_SIZE;
*size_r = data->physical_size;
return 0;
}
if (!_mail->saving) {
ret = maildir_file_do(mbox, _mail->uid, do_stat, &st);
if (ret <= 0) {
if (ret == 0)
mail_set_expunged(_mail);
return -1;
}
} else {
/* saved mail which hasn't been committed yet */
path = maildir_save_file_get_path(_mail->transaction,
_mail->seq);
if (stat(path, &st) < 0) {
mail_storage_set_critical(_mail->box->storage,
"stat(%s) failed: %m", path);
return -1;
}
}
data->physical_size = st.st_size;
maildir_handle_size_caching(mail, FALSE, FALSE);
*size_r = st.st_size;
return 0;
}
static void
maildir_mail_remove_sizes_from_filename(struct mail *mail,
enum mail_fetch_field field)
{
struct maildir_mailbox *mbox = (struct maildir_mailbox *)mail->box;
struct mail_private *pmail = (struct mail_private *)mail;
enum maildir_uidlist_rec_flag flags;
const char *fname;
uoff_t size;
struct maildir_size_fix_ctx ctx;
if (mbox->storage->set->maildir_broken_filename_sizes) {
/* never try to fix sizes in maildir filenames */
return;
}
if (maildir_sync_lookup(mbox, mail->uid, &flags, &fname) <= 0)
return;
if (strchr(fname, MAILDIR_EXTRA_SEP) == NULL)
return;
memset(&ctx, 0, sizeof(ctx));
ctx.physical_size = (uoff_t)-1;
if (field == MAIL_FETCH_VIRTUAL_SIZE &&
maildir_filename_get_size(fname, MAILDIR_EXTRA_VIRTUAL_SIZE,
&size)) {
ctx.wrong_key = 'W';
} else if (field == MAIL_FETCH_PHYSICAL_SIZE &&
maildir_filename_get_size(fname, MAILDIR_EXTRA_FILE_SIZE,
&size)) {
ctx.wrong_key = 'S';
} else {
/* the broken size isn't in filename */
return;
}
if (pmail->v.istream_opened != NULL) {
/* the mail could be e.g. compressed. get the physical size
the slow way by actually reading the mail. */
struct istream *input;
const struct stat *stp;
if (mail_get_stream(mail, NULL, NULL, &input) < 0)
return;
if (i_stream_stat(input, TRUE, &stp) < 0)
return;
ctx.physical_size = stp->st_size;
}
(void)maildir_file_do(mbox, mail->uid, do_fix_size, &ctx);
}
static int maildir_mail_stat(struct mail *mail, struct stat *st_r)
{
struct maildir_mailbox *mbox = (struct maildir_mailbox *)mail->box;
struct index_mail *imail = (struct index_mail *)mail;
const char *path;
int fd, ret;
if (mail->lookup_abort == MAIL_LOOKUP_ABORT_NOT_IN_CACHE) {
mail_set_aborted(mail);
return -1;
}
if (imail->data.access_part != 0 &&
imail->data.stream == NULL) {
/* we're going to open the mail anyway */
struct istream *input;
(void)mail_get_stream(mail, NULL, NULL, &input);
}
if (imail->data.stream != NULL &&
(fd = i_stream_get_fd(imail->data.stream)) != -1) {
mail->transaction->stats.fstat_lookup_count++;
if (fstat(fd, st_r) < 0) {
mail_storage_set_critical(mail->box->storage,
"fstat(%s) failed: %m",
i_stream_get_name(imail->data.stream));
return -1;
}
} else if (!mail->saving) {
mail->transaction->stats.stat_lookup_count++;
ret = maildir_file_do(mbox, mail->uid, do_stat, st_r);
if (ret <= 0) {
if (ret == 0)
mail_set_expunged(mail);
return -1;
}
} else {
mail->transaction->stats.stat_lookup_count++;
path = maildir_save_file_get_path(mail->transaction, mail->seq);
if (stat(path, st_r) < 0) {
mail_storage_set_critical(mail->box->storage,
"stat(%s) failed: %m", path);
return -1;
}
}
return 0;
}
static struct istream *
maildir_open_mail(struct maildir_mailbox *mbox, struct mail *mail,
bool *deleted_r)
{
struct istream *input;
const char *path;
struct maildir_open_context ctx;
*deleted_r = FALSE;
ctx.fd = -1;
ctx.path = NULL;
mail->transaction->stats.open_lookup_count++;
if (!mail->saving) {
if (maildir_file_do(mbox, mail->uid, do_open, &ctx) < 0)
return NULL;
} else {
path = maildir_save_file_get_path(mail->transaction, mail->seq);
if (do_open(mbox, path, &ctx) <= 0)
return NULL;
}
if (ctx.fd == -1) {
*deleted_r = TRUE;
return NULL;
}
input = i_stream_create_fd_autoclose(&ctx.fd, 0);
if (input->stream_errno == EISDIR) {
i_stream_destroy(&input);
if (maildir_lose_unexpected_dir(&mbox->storage->storage,
ctx.path) >= 0)
*deleted_r = TRUE;
} else {
i_stream_set_name(input, ctx.path);
index_mail_set_read_buffer_size(mail, input);
}
i_free(ctx.path);
return input;
}
int maildir_sync_index(struct maildir_index_sync_context *ctx,
bool partial)
{
struct maildir_mailbox *mbox = ctx->mbox;
struct mail_index_view *view = ctx->view;
struct mail_index_view *view2;
struct maildir_uidlist_iter_ctx *iter;
struct mail_index_transaction *trans = ctx->trans;
const struct mail_index_header *hdr;
struct mail_index_header empty_hdr;
const struct mail_index_record *rec;
uint32_t seq, seq2, uid, prev_uid;
enum maildir_uidlist_rec_flag uflags;
const char *filename;
uint32_t uid_validity, next_uid, hdr_next_uid, first_recent_uid;
uint32_t first_uid;
unsigned int changes = 0;
int ret = 0;
time_t time_before_sync;
guid_128_t expunged_guid_128;
enum mail_flags private_flags_mask;
bool expunged, full_rescan = FALSE;
i_assert(!mbox->syncing_commit);
first_uid = 1;
hdr = mail_index_get_header(view);
uid_validity = maildir_uidlist_get_uid_validity(mbox->uidlist);
if (uid_validity != hdr->uid_validity &&
uid_validity != 0 && hdr->uid_validity != 0) {
/* uidvalidity changed and index isn't being synced for the
first time, reset the index so we can add all messages as
new */
i_warning("Maildir %s: UIDVALIDITY changed (%u -> %u)",
mailbox_get_path(&ctx->mbox->box),
hdr->uid_validity, uid_validity);
mail_index_reset(trans);
mailbox_recent_flags_reset(&mbox->box);
first_uid = hdr->messages_count + 1;
memset(&empty_hdr, 0, sizeof(empty_hdr));
empty_hdr.next_uid = 1;
hdr = &empty_hdr;
}
hdr_next_uid = hdr->next_uid;
ctx->mbox->box.tmp_sync_view = view;
private_flags_mask = mailbox_get_private_flags_mask(&mbox->box);
time_before_sync = time(NULL);
mbox->syncing_commit = TRUE;
seq = prev_uid = 0; first_recent_uid = I_MAX(hdr->first_recent_uid, 1);
i_array_init(&ctx->keywords, MAILDIR_MAX_KEYWORDS);
i_array_init(&ctx->idx_keywords, MAILDIR_MAX_KEYWORDS);
iter = maildir_uidlist_iter_init(mbox->uidlist);
while (maildir_uidlist_iter_next(iter, &uid, &uflags, &filename)) {
maildir_filename_flags_get(ctx->keywords_sync_ctx, filename,
&ctx->flags, &ctx->keywords);
i_assert(uid > prev_uid);
prev_uid = uid;
/* the private flags are kept only in indexes. don't use them
at all even for newly seen mails */
ctx->flags &= ~private_flags_mask;
again:
seq++;
ctx->uid = uid;
if (seq > hdr->messages_count) {
if (uid < hdr_next_uid) {
if (maildir_handle_uid_insertion(ctx, uflags,
filename,
uid) < 0)
ret = -1;
seq--;
continue;
}
/* Trust uidlist recent flags only for newly added
messages. When saving/copying messages with flags
they're stored to cur/ and uidlist treats them
as non-recent. */
if ((uflags & MAILDIR_UIDLIST_REC_FLAG_RECENT) == 0) {
if (uid >= first_recent_uid)
first_recent_uid = uid + 1;
}
hdr_next_uid = uid + 1;
mail_index_append(trans, uid, &seq);
mail_index_update_flags(trans, seq, MODIFY_REPLACE,
ctx->flags);
if (array_count(&ctx->keywords) > 0) {
struct mail_keywords *kw;
kw = mail_index_keywords_create_from_indexes(
mbox->box.index, &ctx->keywords);
mail_index_update_keywords(trans, seq,
MODIFY_REPLACE, kw);
mail_index_keywords_unref(&kw);
}
continue;
}
rec = mail_index_lookup(view, seq);
if (uid > rec->uid) {
/* already expunged (no point in showing guid in the
expunge record anymore) */
mail_index_expunge(ctx->trans, seq);
goto again;
}
if (uid < rec->uid) {
if (maildir_handle_uid_insertion(ctx, uflags,
filename, uid) < 0)
ret = -1;
seq--;
continue;
}
index_sync_changes_read(ctx->sync_changes, ctx->uid, &expunged,
expunged_guid_128);
if (expunged) {
if (!maildir_expunge_is_valid_guid(ctx, ctx->uid,
filename,
expunged_guid_128))
continue;
if (maildir_file_do(mbox, ctx->uid,
maildir_expunge, ctx) >= 0) {
/* successful expunge */
mail_index_expunge(ctx->trans, seq);
}
if ((++changes % MAILDIR_SLOW_MOVE_COUNT) == 0)
maildir_sync_notify(ctx->maildir_sync_ctx);
continue;
}
/* the private flags are stored only in indexes, keep them */
ctx->flags |= rec->flags & private_flags_mask;
if (index_sync_changes_have(ctx->sync_changes)) {
/* apply flag changes to maildir */
if (maildir_file_do(mbox, ctx->uid,
maildir_sync_flags, ctx) < 0)
ctx->flags |= MAIL_INDEX_MAIL_FLAG_DIRTY;
if ((++changes % MAILDIR_SLOW_MOVE_COUNT) == 0)
maildir_sync_notify(ctx->maildir_sync_ctx);
}
if ((uflags & MAILDIR_UIDLIST_REC_FLAG_NONSYNCED) != 0) {
/* partial syncing */
if ((uflags & MAILDIR_UIDLIST_REC_FLAG_NEW_DIR) != 0) {
/* we last saw this mail in new/, but it's
not there anymore. possibly expunged,
make sure. */
full_rescan = TRUE;
}
continue;
}
if ((rec->flags & MAIL_INDEX_MAIL_FLAG_DIRTY) != 0) {
/* we haven't been able to update maildir with this
record's flag changes. don't sync them. */
continue;
}
if (ctx->flags != (rec->flags & MAIL_FLAGS_NONRECENT)) {
mail_index_update_flags(trans, seq, MODIFY_REPLACE,
ctx->flags);
}
maildir_sync_mail_keywords(ctx, seq);
}
maildir_uidlist_iter_deinit(&iter);
if (!partial) {
/* expunge the rest */
for (seq++; seq <= hdr->messages_count; seq++)
mail_index_expunge(ctx->trans, seq);
}
/* add \Recent flags. use updated view so it contains newly
appended messages. */
view2 = mail_index_transaction_open_updated_view(trans);
if (mail_index_lookup_seq_range(view2, first_recent_uid, (uint32_t)-1,
&seq, &seq2) && seq2 >= first_uid) {
if (seq < first_uid) {
/* UIDVALIDITY changed, skip over the old messages */
seq = first_uid;
}
mailbox_recent_flags_set_seqs(&mbox->box, view2, seq, seq2);
}
mail_index_view_close(&view2);
if (ctx->uidlist_sync_ctx != NULL) {
if (maildir_uidlist_sync_deinit(&ctx->uidlist_sync_ctx,
TRUE) < 0)
ret = -1;
}
if (mbox->box.v.sync_notify != NULL)
mbox->box.v.sync_notify(&mbox->box, 0, 0);
ctx->mbox->box.tmp_sync_view = NULL;
/* check cur/ mtime later. if we came here from saving messages they
could still be moved to cur/ directory. */
ctx->update_maildir_hdr_cur = TRUE;
mbox->maildir_hdr.cur_check_time = time_before_sync;
if (uid_validity == 0) {
uid_validity = hdr->uid_validity != 0 ? hdr->uid_validity :
maildir_get_uidvalidity_next(mbox->box.list);
maildir_uidlist_set_uid_validity(mbox->uidlist, uid_validity);
}
maildir_uidlist_set_next_uid(mbox->uidlist, hdr_next_uid, FALSE);
if (uid_validity != hdr->uid_validity) {
mail_index_update_header(trans,
offsetof(struct mail_index_header, uid_validity),
&uid_validity, sizeof(uid_validity), TRUE);
}
static int
maildir_copy_hardlink(struct mail_save_context *ctx, struct mail *mail)
{
struct maildir_mailbox *dest_mbox =
(struct maildir_mailbox *)ctx->transaction->box;
struct maildir_mailbox *src_mbox;
struct maildir_filename *mf;
struct hardlink_ctx do_ctx;
const char *path, *guid, *dest_fname;
uoff_t vsize, size;
enum mail_lookup_abort old_abort;
if (strcmp(mail->box->storage->name, MAILDIR_STORAGE_NAME) == 0)
src_mbox = (struct maildir_mailbox *)mail->box;
else if (strcmp(mail->box->storage->name, "raw") == 0) {
/* lda uses raw format */
src_mbox = NULL;
} else {
/* Can't hard link files from the source storage */
return 0;
}
/* hard link to tmp/ with a newly generated filename and later when we
have uidlist locked, move it to new/cur. */
dest_fname = maildir_filename_generate();
memset(&do_ctx, 0, sizeof(do_ctx));
do_ctx.dest_path =
t_strdup_printf("%s/tmp/%s", mailbox_get_path(&dest_mbox->box),
dest_fname);
if (src_mbox != NULL) {
/* maildir */
if (maildir_file_do(src_mbox, mail->uid,
do_hardlink, &do_ctx) < 0)
return -1;
} else {
/* raw / lda */
if (mail_get_special(mail, MAIL_FETCH_UIDL_FILE_NAME,
&path) < 0 || *path == '\0')
return 0;
if (do_hardlink(dest_mbox, path, &do_ctx) < 0)
return -1;
}
if (!do_ctx.success) {
/* couldn't copy with hardlinking, fallback to copying */
return 0;
}
/* hardlinked to tmp/, treat as normal copied mail */
mf = maildir_save_add(ctx, dest_fname, mail);
if (mail_get_special(mail, MAIL_FETCH_GUID, &guid) == 0) {
if (*guid != '\0')
maildir_save_set_dest_basename(ctx, mf, guid);
}
/* remember size/vsize if possible */
old_abort = mail->lookup_abort;
mail->lookup_abort = MAIL_LOOKUP_ABORT_READ_MAIL;
if (mail_get_physical_size(mail, &size) < 0)
size = (uoff_t)-1;
if (mail_get_virtual_size(mail, &vsize) < 0)
vsize = (uoff_t)-1;
maildir_save_set_sizes(mf, size, vsize);
mail->lookup_abort = old_abort;
return 1;
}