int index_storage_mailbox_update(struct mailbox *box,
const struct mailbox_update *update)
{
const struct mail_index_header *hdr;
struct mail_index_view *view;
struct mail_index_transaction *trans;
int ret;
if (mailbox_open(box) < 0)
return -1;
/* make sure we get the latest index info */
mail_index_refresh(box->index);
view = mail_index_view_open(box->index);
hdr = mail_index_get_header(view);
trans = mail_index_transaction_begin(view,
MAIL_INDEX_TRANSACTION_FLAG_EXTERNAL);
if (update->uid_validity != 0 &&
hdr->uid_validity != update->uid_validity) {
uint32_t uid_validity = update->uid_validity;
if (hdr->uid_validity != 0) {
/* UIDVALIDITY change requires index to be reset */
mail_index_reset(trans);
}
mail_index_update_header(trans,
offsetof(struct mail_index_header, uid_validity),
&uid_validity, sizeof(uid_validity), TRUE);
}
static void imapc_sync_uid_validity(struct imapc_sync_context *ctx)
{
struct imapc_mailbox *mbox = ctx->mbox;
const struct mail_index_header *hdr;
hdr = mail_index_get_header(ctx->sync_view);
if (hdr->uid_validity != mbox->sync_uid_validity &&
mbox->sync_uid_validity != 0) {
if (hdr->uid_validity != 0) {
/* uidvalidity changed, reset the entire mailbox */
mail_index_reset(ctx->trans);
mbox->sync_fetch_first_uid = 1;
}
mail_index_update_header(ctx->trans,
offsetof(struct mail_index_header, uid_validity),
&mbox->sync_uid_validity,
sizeof(mbox->sync_uid_validity), TRUE);
}
}
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);
}