/**
* Private method for listing message headers
*
* @access private
* @see rcube_imap::list_headers
*/
private function _list_headers($mailbox = '', $page = NULL, $sort_field = NULL, $sort_order = NULL, $recursive = FALSE, $slice = 0)
{
if (!strlen($mailbox)) {
return array();
}
// use saved message set
if ($this->search_string && $mailbox == $this->mailbox) {
return $this->_list_header_set($mailbox, $page, $sort_field, $sort_order, $slice);
}
$this->_set_sort_order($sort_field, $sort_order);
$page = $page ? $page : $this->list_page;
$cache_key = $mailbox . '.msg';
$cache_status = $this->check_cache_status($mailbox, $cache_key);
// cache is OK, we can get all messages from local cache
if ($cache_status > 0) {
$start_msg = ($page - 1) * $this->page_size;
$a_msg_headers = $this->get_message_cache($cache_key, $start_msg, $start_msg + $this->page_size, $this->sort_field, $this->sort_order);
$result = array_values($a_msg_headers);
if ($slice) {
$result = array_slice($result, -$slice, $slice);
}
return $result;
} else {
if ($this->caching_enabled && $cache_status == -1 && !$recursive) {
$this->sync_header_index($mailbox);
return $this->_list_headers($mailbox, $page, $this->sort_field, $this->sort_order, TRUE, $slice);
}
}
// retrieve headers from IMAP
$a_msg_headers = array();
// use message index sort for sorting by Date (for better performance)
if ($this->index_sort && $this->sort_field == 'date') {
if ($this->skip_deleted) {
// @TODO: this could be cached
if ($msg_index = $this->_search_index($mailbox, 'ALL UNDELETED')) {
$max = max($msg_index);
list($begin, $end) = $this->_get_message_range(count($msg_index), $page);
$msg_index = array_slice($msg_index, $begin, $end - $begin);
}
} else {
if ($max = iil_C_CountMessages($this->conn, $mailbox)) {
list($begin, $end) = $this->_get_message_range($max, $page);
$msg_index = range($begin + 1, $end);
} else {
$msg_index = array();
}
}
if ($slice) {
$msg_index = array_slice($msg_index, $this->sort_order == 'DESC' ? 0 : -$slice, $slice);
}
// fetch reqested headers from server
if ($msg_index) {
$this->_fetch_headers($mailbox, join(",", $msg_index), $a_msg_headers, $cache_key);
}
} else {
if ($this->get_capability('sort') && ($msg_index = iil_C_Sort($this->conn, $mailbox, $this->sort_field, $this->skip_deleted ? 'UNDELETED' : ''))) {
list($begin, $end) = $this->_get_message_range(count($msg_index), $page);
$max = max($msg_index);
$msg_index = array_slice($msg_index, $begin, $end - $begin);
if ($slice) {
$msg_index = array_slice($msg_index, $this->sort_order == 'DESC' ? 0 : -$slice, $slice);
}
// fetch reqested headers from server
$this->_fetch_headers($mailbox, join(',', $msg_index), $a_msg_headers, $cache_key);
} else {
if ($a_index = iil_C_FetchHeaderIndex($this->conn, $mailbox, "1:*", $this->sort_field, $this->skip_deleted)) {
asort($a_index);
// ASC
$msg_index = array_keys($a_index);
$max = max($msg_index);
list($begin, $end) = $this->_get_message_range(count($msg_index), $page);
$msg_index = array_slice($msg_index, $begin, $end - $begin);
if ($slice) {
$msg_index = array_slice($msg_index, $this->sort_order == 'DESC' ? 0 : -$slice, $slice);
}
// fetch reqested headers from server
$this->_fetch_headers($mailbox, join(",", $msg_index), $a_msg_headers, $cache_key);
}
}
}
// delete cached messages with a higher index than $max+1
// Changed $max to $max+1 to fix this bug : #1484295
$this->clear_message_cache($cache_key, $max + 1);
// kick child process to sync cache
// ...
// return empty array if no messages found
if (!is_array($a_msg_headers) || empty($a_msg_headers)) {
return array();
}
// use this class for message sorting
$sorter = new rcube_header_sorter();
$sorter->set_sequence_numbers($msg_index);
$sorter->sort_headers($a_msg_headers);
if ($this->sort_order == 'DESC') {
$a_msg_headers = array_reverse($a_msg_headers);
}
return array_values($a_msg_headers);
}
/**
* Private method for getting nr of messages
*
* @access private
* @see rcube_imap::messagecount()
*/
function _messagecount($mailbox = '', $mode = 'ALL', $force = FALSE)
{
$a_mailbox_cache = FALSE;
$mode = strtoupper($mode);
if (empty($mailbox)) {
$mailbox = $this->mailbox;
}
// count search set
if ($this->search_string && $mailbox == $this->mailbox && $mode == 'ALL' && !$force) {
return count((array) $this->search_set);
}
$a_mailbox_cache = $this->get_cache('messagecount');
// return cached value
if (!$force && is_array($a_mailbox_cache[$mailbox]) && isset($a_mailbox_cache[$mailbox][$mode])) {
return $a_mailbox_cache[$mailbox][$mode];
}
// RECENT count is fetched a bit different
if ($mode == 'RECENT') {
$count = iil_C_CheckForRecent($this->conn, $mailbox);
} else {
if ($this->skip_deleted) {
$search_str = "ALL UNDELETED";
// get message count and store in cache
if ($mode == 'UNSEEN') {
$search_str .= " UNSEEN";
}
// get message count using SEARCH
// not very performant but more precise (using UNDELETED)
$count = 0;
$index = $this->_search_index($mailbox, $search_str);
if (is_array($index)) {
$str = implode(",", $index);
if (!empty($str)) {
$count = count($index);
}
}
} else {
if ($mode == 'UNSEEN') {
$count = iil_C_CountUnseen($this->conn, $mailbox);
} else {
$count = iil_C_CountMessages($this->conn, $mailbox);
}
}
}
if (!is_array($a_mailbox_cache[$mailbox])) {
$a_mailbox_cache[$mailbox] = array();
}
$a_mailbox_cache[$mailbox][$mode] = (int) $count;
// write back to cache
$this->update_cache('messagecount', $a_mailbox_cache);
return (int) $count;
}
