/**
* Fetches message headers
* Used for loop
*
* @param string Mailbox name
* @param string Message index to fetch
* @param array Reference to message headers array
* @param array Array with cache index
* @return int Messages count
* @access private
*/
private function _fetch_headers($mailbox, $msgs, &$a_msg_headers, $cache_key)
{
// fetch reqested headers from server
$a_header_index = iil_C_FetchHeaders($this->conn, $mailbox, $msgs, false, false, $this->fetch_add_headers);
if (!empty($a_header_index)) {
// cache is incomplete
$cache_index = $this->get_message_cache_index($cache_key);
foreach ($a_header_index as $i => $headers) {
if ($this->caching_enabled && $cache_index[$headers->id] != $headers->uid) {
// prevent index duplicates
if ($cache_index[$headers->id]) {
$this->remove_message_cache($cache_key, $headers->id, true);
unset($cache_index[$headers->id]);
}
// add message to cache
$this->add_message_cache($cache_key, $headers->id, $headers, NULL, !in_array($headers->uid, $cache_index));
}
$a_msg_headers[$headers->uid] = $headers;
}
}
return count($a_msg_headers);
}
/**
* Fetches message headers
* Used for loop
*
* @param string Mailbox name
* @param string Message index to fetch
* @param array Reference to message headers array
* @param array Array with cache index
* @return int Number of deleted messages
* @access private
*/
function _fetch_headers($mailbox, $msgs, &$a_msg_headers, $cache_key)
{
// cache is incomplete
$cache_index = $this->get_message_cache_index($cache_key);
// fetch reuested headers from server
$a_header_index = iil_C_FetchHeaders($this->conn, $mailbox, $msgs);
$deleted_count = 0;
if (!empty($a_header_index)) {
foreach ($a_header_index as $i => $headers) {
if ($headers->deleted && $this->skip_deleted) {
// delete from cache
if ($cache_index[$headers->id] && $cache_index[$headers->id] == $headers->uid) {
$this->remove_message_cache($cache_key, $headers->id);
}
$deleted_count++;
continue;
}
// add message to cache
if ($this->caching_enabled && $cache_index[$headers->id] != $headers->uid) {
$this->add_message_cache($cache_key, $headers->id, $headers);
}
$a_msg_headers[$headers->uid] = $headers;
}
}
return $deleted_count;
}