static bool imapc_mail_get_cached_guid(struct mail *_mail)
{
struct index_mail *imail = (struct index_mail *)_mail;
const enum index_cache_field cache_idx =
imail->ibox->cache_fields[MAIL_CACHE_GUID].idx;
string_t *str;
if (imail->data.guid != NULL) {
if (mail_cache_field_can_add(_mail->transaction->cache_trans,
_mail->seq, cache_idx)) {
/* GUID was prefetched - add to cache */
index_mail_cache_add_idx(imail, cache_idx,
imail->data.guid, strlen(imail->data.guid)+1);
}
return TRUE;
}
str = str_new(imail->mail.data_pool, 64);
if (mail_cache_lookup_field(_mail->transaction->cache_view,
str, imail->mail.mail.seq, cache_idx) > 0) {
imail->data.guid = str_c(str);
return TRUE;
}
return FALSE;
}
static void index_mail_parse_finish_imap_envelope(struct index_mail *mail)
{
struct mail *_mail = &mail->mail.mail;
const unsigned int cache_field_envelope =
mail->ibox->cache_fields[MAIL_CACHE_IMAP_ENVELOPE].idx;
string_t *str;
str = str_new(mail->mail.data_pool, 256);
imap_envelope_write_part_data(mail->data.envelope_data, str);
mail->data.envelope = str_c(str);
if (mail_cache_field_can_add(_mail->transaction->cache_trans,
_mail->seq, cache_field_envelope)) {
index_mail_cache_add_idx(mail, cache_field_envelope,
str_data(str), str_len(str));
}
}
static bool
index_mail_want_cache(struct index_mail *mail, enum index_cache_field field)
{
enum mail_fetch_field fetch_field;
unsigned int cache_field;
switch (field) {
case MAIL_CACHE_SENT_DATE:
fetch_field = MAIL_FETCH_DATE;
break;
case MAIL_CACHE_RECEIVED_DATE:
fetch_field = MAIL_FETCH_RECEIVED_DATE;
break;
case MAIL_CACHE_SAVE_DATE:
fetch_field = MAIL_FETCH_SAVE_DATE;
break;
case MAIL_CACHE_VIRTUAL_FULL_SIZE:
fetch_field = MAIL_FETCH_VIRTUAL_SIZE;
break;
case MAIL_CACHE_PHYSICAL_FULL_SIZE:
fetch_field = MAIL_FETCH_PHYSICAL_SIZE;
break;
default:
i_unreached();
}
if ((mail->data.dont_cache_fetch_fields & fetch_field) != 0)
return FALSE;
cache_field = mail->ibox->cache_fields[field].idx;
if ((mail->data.cache_fetch_fields & fetch_field) != 0) {
return mail_cache_field_can_add(mail->trans->cache_trans,
mail->data.seq, cache_field);
} else {
return mail_cache_field_want_add(mail->trans->cache_trans,
mail->data.seq, cache_field);
}
}
static void index_mail_parse_header_finish(struct index_mail *mail)
{
struct mail *_mail = &mail->mail.mail;
const struct index_mail_line *lines;
const unsigned char *header, *data;
const uint8_t *match;
buffer_t *buf;
size_t data_size;
unsigned int i, j, count, match_idx, match_count;
bool noncontiguous;
/* sort it first so fields are grouped together and ordered by
line number */
array_sort(&mail->header_lines, header_line_cmp);
lines = array_get(&mail->header_lines, &count);
match = array_get(&mail->header_match, &match_count);
header = buffer_get_data(mail->header_data, NULL);
buf = buffer_create_dynamic(pool_datastack_create(), 256);
/* go through all the header lines we found */
for (i = match_idx = 0; i < count; i = j) {
/* matches and header lines are both sorted, all matches
until lines[i] weren't found */
while (match_idx < lines[i].field_idx &&
match_idx < match_count) {
if (HEADER_MATCH_USABLE(mail, match[match_idx]) &&
mail_cache_field_can_add(_mail->transaction->cache_trans,
_mail->seq, match_idx)) {
/* this header doesn't exist. remember that. */
i_assert((match[match_idx] &
HEADER_MATCH_FLAG_FOUND) == 0);
index_mail_cache_add_idx(mail, match_idx,
"", 0);
}
match_idx++;
}
if (match_idx < match_count) {
/* save index to first header line */
j = i + 1;
array_idx_set(&mail->header_match_lines, match_idx, &j);
match_idx++;
}
if (!mail_cache_field_can_add(_mail->transaction->cache_trans,
_mail->seq, lines[i].field_idx)) {
/* header is already cached */
j = i + 1;
continue;
}
/* buffer contains: { uint32_t line_num[], 0, header texts }
noncontiguous is just a small optimization.. */
buffer_set_used_size(buf, 0);
buffer_append(buf, &lines[i].line_num,
sizeof(lines[i].line_num));
noncontiguous = FALSE;
for (j = i+1; j < count; j++) {
if (lines[j].field_idx != lines[i].field_idx)
break;
if (lines[j].start_pos != lines[j-1].end_pos)
noncontiguous = TRUE;
buffer_append(buf, &lines[j].line_num,
sizeof(lines[j].line_num));
}
buffer_append_zero(buf, sizeof(uint32_t));
if (noncontiguous) {
for (; i < j; i++) {
buffer_append(buf, header + lines[i].start_pos,
lines[i].end_pos -
lines[i].start_pos);
}
i--;
} else {
buffer_append(buf, header + lines[i].start_pos,
lines[j-1].end_pos - lines[i].start_pos);
}
data = buffer_get_data(buf, &data_size);
index_mail_cache_add_idx(mail, lines[i].field_idx,
data, data_size);
}
for (; match_idx < match_count; match_idx++) {
if (HEADER_MATCH_USABLE(mail, match[match_idx]) &&
mail_cache_field_can_add(_mail->transaction->cache_trans,
_mail->seq, match_idx)) {
/* this header doesn't exist. remember that. */
i_assert((match[match_idx] &
HEADER_MATCH_FLAG_FOUND) == 0);
index_mail_cache_add_idx(mail, match_idx, "", 0);
}
}
mail->data.dont_cache_field_idx = UINT_MAX;
}
static void
index_mail_body_parsed_cache_bodystructure(struct index_mail *mail,
enum index_cache_field field)
{
struct index_mail_data *data = &mail->data;
unsigned int cache_field_parts =
mail->ibox->cache_fields[MAIL_CACHE_MESSAGE_PARTS].idx;
unsigned int cache_field_body =
mail->ibox->cache_fields[MAIL_CACHE_IMAP_BODY].idx;
unsigned int cache_field_bodystructure =
mail->ibox->cache_fields[MAIL_CACHE_IMAP_BODYSTRUCTURE].idx;
enum mail_cache_decision_type dec;
string_t *str;
bool bodystructure_cached = FALSE;
bool plain_bodystructure = FALSE;
bool cache_bodystructure, cache_body;
if ((data->cache_flags & MAIL_CACHE_FLAG_TEXT_PLAIN_7BIT_ASCII) != 0) {
if (data->messageparts_saved_to_cache ||
mail_cache_field_exists(mail->trans->cache_view, data->seq,
cache_field_parts) > 0) {
/* cached it as flag + message_parts */
plain_bodystructure = TRUE;
}
}
if (!data->parsed_bodystructure)
return;
/* If BODY is fetched first but BODYSTRUCTURE is also wanted, we don't
normally want to first cache BODY and then BODYSTRUCTURE. So check
the wanted_fields also in here. */
if (plain_bodystructure)
cache_bodystructure = FALSE;
else if (field == MAIL_CACHE_IMAP_BODYSTRUCTURE ||
(mail->wanted_fields & MAIL_FETCH_IMAP_BODYSTRUCTURE) != 0) {
cache_bodystructure =
mail_cache_field_can_add(mail->trans->cache_trans,
data->seq, cache_field_bodystructure);
} else {
cache_bodystructure =
mail_cache_field_want_add(mail->trans->cache_trans,
data->seq, cache_field_bodystructure);
}
if (cache_bodystructure) {
str = str_new(mail->data_pool, 128);
imap_bodystructure_write(data->parts, str, TRUE);
data->bodystructure = str_c(str);
index_mail_cache_add(mail, MAIL_CACHE_IMAP_BODYSTRUCTURE,
str_c(str), str_len(str)+1);
bodystructure_cached = TRUE;
} else {
bodystructure_cached =
mail_cache_field_exists(mail->trans->cache_view,
data->seq, cache_field_bodystructure) > 0;
}
/* normally don't cache both BODY and BODYSTRUCTURE, but do it
if BODY is forced to be cached */
dec = mail_cache_field_get_decision(mail->mail.mail.box->cache,
cache_field_body);
if (plain_bodystructure ||
(bodystructure_cached &&
(dec != (MAIL_CACHE_DECISION_FORCED | MAIL_CACHE_DECISION_YES))))
cache_body = FALSE;
else if (field == MAIL_CACHE_IMAP_BODY) {
cache_body =
mail_cache_field_can_add(mail->trans->cache_trans,
data->seq, cache_field_body);
} else {
cache_body =
mail_cache_field_want_add(mail->trans->cache_trans,
data->seq, cache_field_body);
}
if (cache_body) {
str = str_new(mail->data_pool, 128);
imap_bodystructure_write(data->parts, str, FALSE);
data->body = str_c(str);
index_mail_cache_add(mail, MAIL_CACHE_IMAP_BODY,
str_c(str), str_len(str)+1);
}
}
