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330 lines
8.6 KiB
PHP
330 lines
8.6 KiB
PHP
<?php
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/*
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+-----------------------------------------------------------------------+
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| This file is part of the Roundcube Webmail client |
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| Copyright (C) 2005-2011, The Roundcube Dev Team |
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| Copyright (C) 2011, Kolab Systems AG |
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| Licensed under the GNU General Public License version 3 or |
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| any later version with exceptions for skins & plugins. |
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| See the README file for a full license statement. |
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| PURPOSE: |
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| SORT/SEARCH/ESEARCH response handler |
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+-----------------------------------------------------------------------+
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| Author: Thomas Bruederli <roundcube@gmail.com> |
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+-----------------------------------------------------------------------+
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*/
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/**
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* Class holding a set of rcube_result_index instances that together form a
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* result set of a multi-folder search
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*
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* @package Framework
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* @subpackage Storage
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*/
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class rcube_result_multifolder
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{
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public $multi = true;
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public $sets = array();
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public $incomplete = false;
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public $folder;
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protected $meta = array();
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protected $index = array();
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protected $folders = array();
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protected $sorting;
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protected $order = 'ASC';
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/**
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* Object constructor.
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*/
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public function __construct($folders = array())
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{
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$this->folders = $folders;
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$this->meta = array('count' => 0);
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}
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/**
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* Initializes object with SORT command response
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*
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* @param string $data IMAP response string
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*/
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public function add($result)
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{
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$this->sets[] = $result;
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if ($count = $result->count()) {
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$this->meta['count'] += $count;
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// append UIDs to global index
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$folder = $result->get_parameters('MAILBOX');
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$index = array_map(function($uid) use ($folder) { return $uid . '-' . $folder; }, $result->get());
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$this->index = array_merge($this->index, $index);
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}
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else if ($result->incomplete) {
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$this->incomplete = true;
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}
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}
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/**
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* Store a global index of (sorted) message UIDs
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*/
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public function set_message_index($headers, $sort_field, $sort_order)
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{
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$this->index = array();
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foreach ($headers as $header) {
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$this->index[] = $header->uid . '-' . $header->folder;
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}
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$this->sorting = $sort_field;
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$this->order = $sort_order;
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}
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/**
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* Checks the result from IMAP command
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*
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* @return bool True if the result is an error, False otherwise
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*/
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public function is_error()
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{
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return false;
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}
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/**
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* Checks if the result is empty
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*
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* @return bool True if the result is empty, False otherwise
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*/
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public function is_empty()
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{
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return empty($this->sets) || $this->meta['count'] == 0;
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}
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/**
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* Returns number of elements in the result
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*
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* @return int Number of elements
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*/
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public function count()
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{
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return $this->meta['count'];
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}
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/**
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* Returns number of elements in the result.
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* Alias for count() for compatibility with rcube_result_thread
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*
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* @return int Number of elements
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*/
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public function count_messages()
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{
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return $this->count();
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}
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/**
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* Reverts order of elements in the result
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*/
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public function revert()
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{
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$this->order = $this->order == 'ASC' ? 'DESC' : 'ASC';
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$this->index = array();
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// revert order in all sub-sets
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foreach ($this->sets as $set) {
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if ($this->order != $set->get_parameters('ORDER')) {
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$set->revert();
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}
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$folder = $set->get_parameters('MAILBOX');
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$index = array_map(function($uid) use ($folder) { return $uid . '-' . $folder; }, $set->get());
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$this->index = array_merge($this->index, $index);
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}
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}
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/**
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* Check if the given message ID exists in the object
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*
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* @param int $msgid Message ID
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* @param bool $get_index When enabled element's index will be returned.
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* Elements are indexed starting with 0
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* @return mixed False if message ID doesn't exist, True if exists or
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* index of the element if $get_index=true
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*/
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public function exists($msgid, $get_index = false)
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{
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if (!empty($this->folder)) {
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$msgid .= '-' . $this->folder;
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}
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return array_search($msgid, $this->index);
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}
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/**
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* Filters data set. Removes elements listed in $ids list.
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*
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* @param array $ids List of IDs to remove.
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* @param string $folder IMAP folder
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*/
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public function filter($ids = array(), $folder = null)
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{
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$this->meta['count'] = 0;
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foreach ($this->sets as $set) {
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if ($set->get_parameters('MAILBOX') == $folder) {
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$set->filter($ids);
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}
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$this->meta['count'] += $set->count();
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}
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}
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/**
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* Slices data set.
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*
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* @param $offset Offset (as for PHP's array_slice())
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* @param $length Number of elements (as for PHP's array_slice())
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*
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*/
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public function slice($offset, $length)
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{
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$data = array_slice($this->get(), $offset, $length);
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$this->index = $data;
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$this->meta['count'] = count($data);
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}
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/**
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* Filters data set. Removes elements not listed in $ids list.
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*
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* @param array $ids List of IDs to keep.
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*/
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public function intersect($ids = array())
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{
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// not implemented
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}
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/**
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* Return all messages in the result.
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*
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* @return array List of message IDs
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*/
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public function get()
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{
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return $this->index;
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}
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/**
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* Return all messages in the result.
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*
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* @return array List of message IDs
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*/
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public function get_compressed()
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{
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return '';
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}
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/**
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* Return result element at specified index
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*
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* @param int|string $index Element's index or "FIRST" or "LAST"
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*
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* @return int Element value
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*/
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public function get_element($idx)
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{
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switch ($idx) {
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case 'FIRST': return $this->index[0];
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case 'LAST': return end($this->index);
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default: return $this->index[$idx];
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}
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}
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/**
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* Returns response parameters, e.g. ESEARCH's MIN/MAX/COUNT/ALL/MODSEQ
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* or internal data e.g. MAILBOX, ORDER
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*
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* @param string $param Parameter name
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*
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* @return array|string Response parameters or parameter value
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*/
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public function get_parameters($param=null)
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{
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$params = array(
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'SORT' => $this->sorting,
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'ORDER' => $this->order,
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'MAILBOX' => $this->folders,
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);
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if ($param !== null) {
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return $params[$param];
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}
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return $params;
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}
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/**
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* Returns the stored result object for a particular folder
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*
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* @param string $folder Folder name
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* @return false|obejct rcube_result_* instance of false if none found
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*/
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public function get_set($folder)
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{
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foreach ($this->sets as $set) {
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if ($set->get_parameters('MAILBOX') == $folder) {
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return $set;
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}
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}
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return false;
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}
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/**
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* Returns length of internal data representation
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*
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* @return int Data length
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*/
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protected function length()
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{
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return $this->count();
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}
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/* Serialize magic methods */
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public function __sleep()
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{
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return array('sets','folders','sorting','order');
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}
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public function __wakeup()
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{
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// restore index from saved result sets
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$this->meta = array('count' => 0);
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foreach ($this->sets as $result) {
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if ($count = $result->count()) {
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$this->meta['count'] += $count;
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// append UIDs to global index
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$folder = $result->get_parameters('MAILBOX');
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$index = array_map(function($uid) use ($folder) { return $uid . '-' . $folder; }, $result->get());
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$this->index = array_merge($this->index, $index);
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}
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else if ($result->incomplete) {
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$this->incomplete = true;
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}
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}
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}
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}
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