818 lines
25 KiB
PHP
818 lines
25 KiB
PHP
<?php
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/**
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* The kolab_storage_folder class represents an IMAP folder on the Kolab server.
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*
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* @version @package_version@
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* @author Thomas Bruederli <bruederli@kolabsys.com>
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*
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* Copyright (C) 2012, Kolab Systems AG <contact@kolabsys.com>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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class kolab_storage_folder
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{
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const KTYPE_PREFIX = 'application/x-vnd.kolab.';
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/**
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* The folder name.
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* @var string
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*/
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public $name;
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/**
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* The type of this folder.
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* @var string
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*/
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public $type;
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/**
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* The attached cache object
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* @var kolab_storage_cache
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*/
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public $cache;
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private $type_annotation;
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private $imap;
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private $info;
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private $owner;
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private $resource_uri;
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private $uid2msg = array();
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/**
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* Default constructor
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*/
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function __construct($name, $imap = null)
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{
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$this->imap = is_object($imap) ? $imap : rcube::get_instance()->get_storage();
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$this->imap->set_options(array('skip_deleted' => true));
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$this->cache = new kolab_storage_cache($this);
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$this->set_folder($name);
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}
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/**
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* Set the IMAP folder name this instance connects to
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*
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* @param string The folder name/path
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*/
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public function set_folder($name)
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{
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$this->name = $name;
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$this->imap->set_folder($this->name);
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$metadata = $this->imap->get_metadata($this->name, array(kolab_storage::CTYPE_KEY));
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$this->type_annotation = $metadata[$this->name][kolab_storage::CTYPE_KEY];
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$this->type = reset(explode('.', $this->type_annotation));
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$this->resource_uri = null;
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$this->cache->set_folder($this);
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}
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/**
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*
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*/
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private function get_folder_info()
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{
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if (!isset($this->info))
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$this->info = $this->imap->folder_info($this->name);
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return $this->info;
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}
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/**
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* Returns IMAP metadata/annotations (GETMETADATA/GETANNOTATION)
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*
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* @param array List of metadata keys to read
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* @return array Metadata entry-value hash array on success, NULL on error
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*/
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public function get_metadata($keys)
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{
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$metadata = $this->imap->get_metadata($this->name, (array)$keys);
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return $metadata[$this->name];
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}
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/**
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* Sets IMAP metadata/annotations (SETMETADATA/SETANNOTATION)
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*
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* @param array $entries Entry-value array (use NULL value as NIL)
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* @return boolean True on success, False on failure
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*/
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public function set_metadata($entries)
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{
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return $this->imap->set_metadata($this->name, $entries);
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}
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/**
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* Returns the owner of the folder.
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*
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* @return string The owner of this folder.
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*/
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public function get_owner()
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{
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// return cached value
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if (isset($this->owner))
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return $this->owner;
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$info = $this->get_folder_info();
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$rcmail = rcube::get_instance();
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switch ($info['namespace']) {
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case 'personal':
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$this->owner = $rcmail->user->get_username();
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break;
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case 'shared':
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$this->owner = 'anonymous';
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break;
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default:
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$owner = '';
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list($prefix, $user) = explode($this->imap->get_hierarchy_delimiter(), $info['name']);
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if (strpos($user, '@') === false) {
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$domain = strstr($rcmail->user->get_username(), '@');
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if (!empty($domain))
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$user .= $domain;
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}
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$this->owner = $user;
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break;
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}
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return $this->owner;
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}
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/**
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* Getter for the name of the namespace to which the IMAP folder belongs
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*
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* @return string Name of the namespace (personal, other, shared)
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*/
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public function get_namespace()
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{
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return $this->imap->folder_namespace($this->name);
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}
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/**
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* Get IMAP ACL information for this folder
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*
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* @return string Permissions as string
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*/
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public function get_myrights()
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{
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$rights = $this->info['rights'];
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if (!is_array($rights))
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$rights = $this->imap->my_rights($this->name);
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return join('', (array)$rights);
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}
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/**
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* Compose a unique resource URI for this IMAP folder
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*/
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public function get_resource_uri()
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{
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if (!empty($this->resource_uri))
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return $this->resource_uri;
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// strip namespace prefix from folder name
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$ns = $this->get_namespace();
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$nsdata = $this->imap->get_namespace($ns);
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if (is_array($nsdata[0]) && strlen($nsdata[0][0]) && strpos($this->name, $nsdata[0][0]) === 0) {
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$subpath = substr($this->name, strlen($nsdata[0][0]));
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if ($ns == 'other') {
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list($user, $suffix) = explode($nsdata[0][1], $subpath);
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$subpath = $suffix;
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}
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}
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else {
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$subpath = $this->name;
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}
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// compose fully qualified ressource uri for this instance
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$this->resource_uri = 'imap://' . urlencode($this->get_owner()) . '@' . $this->imap->options['host'] . '/' . $subpath;
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return $this->resource_uri;
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}
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/**
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* Check subscription status of this folder
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*
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* @param string Subscription type (kolab_storage::SERVERSIDE_SUBSCRIPTION or kolab_storage::CLIENTSIDE_SUBSCRIPTION)
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* @return boolean True if subscribed, false if not
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*/
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public function is_subscribed($type = 0)
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{
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static $subscribed; // local cache
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if ($type == kolab_storage::SERVERSIDE_SUBSCRIPTION) {
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if (!$subscribed)
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$subscribed = $this->imap->list_folders_subscribed();
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return in_array($this->name, $subscribed);
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}
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else if (kolab_storage::CLIENTSIDE_SUBSCRIPTION) {
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// TODO: implement this
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return true;
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}
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return false;
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}
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/**
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* Change subscription status of this folder
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*
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* @param boolean The desired subscription status: true = subscribed, false = not subscribed
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* @param string Subscription type (kolab_storage::SERVERSIDE_SUBSCRIPTION or kolab_storage::CLIENTSIDE_SUBSCRIPTION)
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* @return True on success, false on error
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*/
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public function subscribe($subscribed, $type = 0)
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{
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if ($type == kolab_storage::SERVERSIDE_SUBSCRIPTION) {
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return $subscribed ? $this->imap->subscribe($this->name) : $this->imap->unsubscribe($this->name);
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}
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else {
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// TODO: implement this
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}
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return false;
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}
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/**
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* Get number of objects stored in this folder
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*
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* @param string $type Object type (e.g. contact, event, todo, journal, note, configuration)
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* @return integer The number of objects of the given type
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*/
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public function count($type = null)
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{
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if (!$type) $type = $this->type;
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// TODO: synchronize cache first?
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return $this->cache->count(array(array('type','=',$type)));
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}
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/**
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* List all Kolab objects of the given type
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*
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* @param string $type Object type (e.g. contact, event, todo, journal, note, configuration)
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* @return array List of Kolab data objects (each represented as hash array)
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*/
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public function get_objects($type = null)
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{
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if (!$type) $type = $this->type;
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// synchronize caches
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$this->cache->synchronize();
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// fetch objects from cache
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return $this->cache->select(array(array('type','=',$type)));
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}
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/**
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* Select *some* Kolab objects matching the given query
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*
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* @param array Pseudo-SQL query as list of filter parameter triplets
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* triplet: array('<colname>', '<comparator>', '<value>')
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* @return array List of Kolab data objects (each represented as hash array)
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*/
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public function select($query = array())
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{
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// check query argument
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if (empty($query))
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return $this->get_objects();
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$type = null;
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foreach ($query as $i => $param) {
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if ($param[0] == 'type') {
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$type = $param[2];
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}
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else if (($param[0] == 'dtstart' || $param[0] == 'dtend') && is_numeric($param[2])) {
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$query[$i][2] = date('Y-m-d H:i:s', $param[2]);
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}
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}
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// add type selector if not in $query
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if (!$type)
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$query[] = array('type','=',$this->type);
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// synchronize caches
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$this->cache->synchronize();
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// fetch objects from cache
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return $this->cache->select($query);
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}
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/**
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* Getter for a single Kolab object, identified by its UID
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*
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* @param string Object UID
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* @return array The Kolab object represented as hash array
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*/
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public function get_object($uid)
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{
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// synchronize caches
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$this->cache->synchronize();
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$msguid = $this->cache->uid2msguid($uid);
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if ($msguid && ($object = $this->cache->get($msguid)))
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return $object;
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return false;
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}
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/**
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* Fetch a Kolab object attachment which is stored in a separate part
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* of the mail MIME message that represents the Kolab record.
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*
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* @param string Object's UID
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* @param string The attachment's mime number
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* @param string IMAP folder where message is stored;
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* If set, that also implies that the given UID is an IMAP UID
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* @return mixed The attachment content as binary string
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*/
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public function get_attachment($uid, $part, $mailbox = null)
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{
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if ($msguid = ($mailbox ? $uid : $this->cache->uid2msguid($uid))) {
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$this->imap->set_folder($mailbox ? $mailbox : $this->name);
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return $this->imap->get_message_part($msguid, $part);
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}
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return null;
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}
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/**
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* Fetch the mime message from the storage server and extract
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* the Kolab groupware object from it
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*
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* @param string The IMAP message UID to fetch
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* @param string The object type expected (use wildcard '*' to accept all types)
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* @param string The folder name where the message is stored
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* @return mixed Hash array representing the Kolab object, a kolab_format instance or false if not found
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*/
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public function read_object($msguid, $type = null, $folder = null)
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{
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if (!$type) $type = $this->type;
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if (!$folder) $folder = $this->name;
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$this->imap->set_folder($folder);
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$headers = $this->imap->get_message_headers($msguid);
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$object_type = substr($headers->others['x-kolab-type'], strlen(self::KTYPE_PREFIX));
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$content_type = self::KTYPE_PREFIX . $object_type;
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// check object type header and abort on mismatch
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if ($type != '*' && $object_type != $type)
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return false;
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$message = new rcube_message($msguid);
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$attachments = array();
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// get XML part
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foreach ((array)$message->attachments as $part) {
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if (!$xml && ($part->mimetype == $content_type || preg_match('!application/([a-z]+\+)?xml!', $part->mimetype))) {
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$xml = $part->body ? $part->body : $message->get_part_content($part->mime_id);
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}
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else if ($part->filename) {
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$attachments[$part->filename] = array(
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'id' => $part->mime_id,
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'mimetype' => $part->mimetype,
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'size' => $part->size,
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);
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}
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}
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if (!$xml) {
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raise_error(array(
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'code' => 600,
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'type' => 'php',
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'file' => __FILE__,
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'line' => __LINE__,
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'message' => "Could not find Kolab data part in message $msguid ($this->name).",
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), true);
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return false;
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}
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$format = kolab_format::factory($object_type);
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if (is_a($format, 'PEAR_Error'))
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return false;
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// check kolab format version
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if (strpos($xml, '<' . $object_type) !== false) {
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// old Kolab 2.0 format detected
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$handler = class_exists('Horde_Kolab_Format') ? Horde_Kolab_Format::factory('XML', $object_type) : null;
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if (!is_object($handler) || is_a($handler, 'PEAR_Error')) {
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return false;
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}
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// XML-to-array
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$object = $handler->load($xml);
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$format->fromkolab2($object);
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}
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else {
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// load Kolab 3 format using libkolabxml
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$format->load($xml);
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}
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if ($format->is_valid()) {
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$object = $format->to_array();
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$object['_type'] = $object_type;
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$object['_msguid'] = $msguid;
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$object['_mailbox'] = $this->name;
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$object['_attachments'] = array_merge((array)$object['_attachments'], $attachments);
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$object['_formatobj'] = $format;
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return $object;
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}
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else {
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// try to extract object UID from XML block
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if (preg_match('!<uid>(.+)</uid>!Uims', $xml, $m))
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$msgadd = " UID = " . trim(strip_tags($m[1]));
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raise_error(array(
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'code' => 600,
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'type' => 'php',
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'file' => __FILE__,
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'line' => __LINE__,
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'message' => "Could not parse Kolab object data in message $msguid ($this->name)." . $msgadd,
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), true);
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}
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return false;
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}
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/**
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* Save an object in this folder.
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*
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* @param array $object The array that holds the data of the object.
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* @param string $type The type of the kolab object.
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* @param string $uid The UID of the old object if it existed before
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* @return boolean True on success, false on error
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*/
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public function save(&$object, $type = null, $uid = null)
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{
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if (!$type)
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$type = $this->type;
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// copy attachments from old message
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if (!empty($object['_msguid']) && ($old = $this->cache->get($object['_msguid'], $type, $object['_mailbox']))) {
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foreach ((array)$old['_attachments'] as $name => $att) {
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if (!isset($object['_attachments'][$name])) {
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$object['_attachments'][$name] = $old['_attachments'][$name];
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}
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// load photo.attachment from old Kolab2 format to be directly embedded in xcard block
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if ($name == 'photo.attachment' && !isset($object['photo']) && !$object['_attachments'][$name]['content'] && $att['id']) {
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$object['photo'] = $this->get_attachment($object['_msguid'], $att['id'], $object['_mailbox']);
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unset($object['_attachments'][$name]);
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}
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}
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}
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if ($raw_msg = $this->build_message($object, $type)) {
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$result = $this->imap->save_message($this->name, $raw_msg, '', false);
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// delete old message
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if ($result && !empty($object['_msguid']) && !empty($object['_mailbox'])) {
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$this->imap->delete_message($object['_msguid'], $object['_mailbox']);
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$this->cache->set($object['_msguid'], false, $object['_mailbox']);
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}
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else if ($result && $uid && ($msguid = $this->cache->uid2msguid($uid))) {
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$this->imap->delete_message($msguid, $this->name);
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$this->cache->set($object['_msguid'], false);
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}
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// update cache with new UID
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if ($result) {
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$object['_msguid'] = $result;
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$this->cache->set($result, $object);
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}
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}
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return $result;
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}
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/**
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* Delete the specified object from this folder.
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*
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* @param mixed $object The Kolab object to delete or object UID
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* @param boolean $expunge Should the folder be expunged?
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* @param boolean $trigger Should the folder update be triggered?
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*
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* @return boolean True if successful, false on error
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*/
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public function delete($object, $expunge = true, $trigger = true)
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{
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$msguid = is_array($object) ? $object['_msguid'] : $this->cache->uid2msguid($object);
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$success = false;
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if ($msguid && $expunge) {
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$success = $this->imap->delete_message($msguid, $this->name);
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}
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else if ($msguid) {
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$success = $this->imap->set_flag($msguid, 'DELETED', $this->name);
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}
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|
|
if ($success) {
|
|
$this->cache->set($result, false);
|
|
}
|
|
|
|
return $success;
|
|
}
|
|
|
|
|
|
/**
|
|
*
|
|
*/
|
|
public function delete_all()
|
|
{
|
|
$this->cache->purge();
|
|
return $this->imap->clear_folder($this->name);
|
|
}
|
|
|
|
|
|
/**
|
|
* Restore a previously deleted object
|
|
*
|
|
* @param string Object UID
|
|
* @return mixed Message UID on success, false on error
|
|
*/
|
|
public function undelete($uid)
|
|
{
|
|
if ($msguid = $this->cache->uid2msguid($uid, true)) {
|
|
if ($this->imap->set_flag($msguid, 'UNDELETED', $this->name)) {
|
|
return $msguid;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
|
|
/**
|
|
* Move a Kolab object message to another IMAP folder
|
|
*
|
|
* @param string Object UID
|
|
* @param string IMAP folder to move object to
|
|
* @return boolean True on success, false on failure
|
|
*/
|
|
public function move($uid, $target_folder)
|
|
{
|
|
if ($msguid = $this->cache->uid2msguid($uid)) {
|
|
if ($success = $this->imap->move_message($msguid, $target_folder, $this->name)) {
|
|
$this->cache->move($msguid, $uid, $target_folder);
|
|
return true;
|
|
}
|
|
else {
|
|
raise_error(array(
|
|
'code' => 600, 'type' => 'php',
|
|
'file' => __FILE__, 'line' => __LINE__,
|
|
'message' => "Failed to move message $msguid to $target_folder: " . $this->imap->get_error_str(),
|
|
), true);
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
|
|
/**
|
|
* Creates source of the configuration object message
|
|
*/
|
|
private function build_message(&$object, $type)
|
|
{
|
|
// load old object to preserve data we don't understand/process
|
|
if (is_object($object['_formatobj']))
|
|
$format = $object['_formatobj'];
|
|
else if ($object['_msguid'] && ($old = $this->cache->get($object['_msguid'], $type, $object['_mailbox'])))
|
|
$format = $old['_formatobj'];
|
|
|
|
// create new kolab_format instance
|
|
if (!$format)
|
|
$format = kolab_format::factory($type);
|
|
|
|
$format->set($object);
|
|
$xml = $format->write();
|
|
$object['uid'] = $format->uid; // get read UID from format
|
|
|
|
if (!$format->is_valid() || empty($object['uid'])) {
|
|
return false;
|
|
}
|
|
|
|
$mime = new Mail_mime("\r\n");
|
|
$rcmail = rcube::get_instance();
|
|
$headers = array();
|
|
$part_id = 1;
|
|
|
|
if ($ident = $rcmail->user->get_identity()) {
|
|
$headers['From'] = $ident['email'];
|
|
$headers['To'] = $ident['email'];
|
|
}
|
|
$headers['Date'] = date('r');
|
|
$headers['X-Kolab-Type'] = self::KTYPE_PREFIX . $type;
|
|
$headers['Subject'] = $object['uid'];
|
|
// $headers['Message-ID'] = $rcmail->gen_message_id();
|
|
$headers['User-Agent'] = $rcmail->config->get('useragent');
|
|
|
|
$mime->headers($headers);
|
|
$mime->setTXTBody('This is a Kolab Groupware object. '
|
|
. 'To view this object you will need an email client that understands the Kolab Groupware format. '
|
|
. "For a list of such email clients please visit http://www.kolab.org/\n\n");
|
|
|
|
$mime->addAttachment($xml,
|
|
$format->CTYPE,
|
|
'kolab.xml',
|
|
false, '8bit', 'attachment', RCMAIL_CHARSET, '', '',
|
|
$rcmail->config->get('mime_param_folding') ? 'quoted-printable' : null,
|
|
$rcmail->config->get('mime_param_folding') == 2 ? 'quoted-printable' : null,
|
|
'', RCMAIL_CHARSET
|
|
);
|
|
$part_id++;
|
|
|
|
// save object attachments as separate parts
|
|
// TODO: optimize memory consumption by using tempfiles for transfer
|
|
foreach ((array)$object['_attachments'] as $name => $att) {
|
|
if (empty($att['content']) && !empty($att['id'])) {
|
|
$msguid = !empty($object['_msguid']) ? $object['_msguid'] : $object['uid'];
|
|
$att['content'] = $this->get_attachment($msguid, $att['id'], $object['_mailbox']);
|
|
}
|
|
if (!empty($att['content'])) {
|
|
$mime->addAttachment($att['content'], $att['mimetype'], $name, false);
|
|
$part_id++;
|
|
}
|
|
else if (!empty($att['path'])) {
|
|
$mime->addAttachment($att['path'], $att['mimetype'], $name, true);
|
|
$part_id++;
|
|
}
|
|
|
|
$object['_attachments'][$name]['id'] = $part_id;
|
|
}
|
|
|
|
return $mime->getMessage();
|
|
}
|
|
|
|
|
|
/**
|
|
* Triggers any required updates after changes within the
|
|
* folder. This is currently only required for handling free/busy
|
|
* information with Kolab.
|
|
*
|
|
* @return boolean|PEAR_Error True if successfull.
|
|
*/
|
|
public function trigger()
|
|
{
|
|
$owner = $this->get_owner();
|
|
$result = false;
|
|
|
|
switch($this->type) {
|
|
case 'event':
|
|
if ($this->get_namespace() == 'personal') {
|
|
$result = $this->trigger_url(
|
|
sprintf('%s/trigger/%s/%s.pfb', kolab_storage::get_freebusy_server(), $owner, $this->imap->mod_folder($this->name)),
|
|
$this->imap->options['user'],
|
|
$this->imap->options['password']
|
|
);
|
|
}
|
|
break;
|
|
|
|
default:
|
|
return true;
|
|
}
|
|
|
|
if ($result && is_a($result, 'PEAR_Error')) {
|
|
return PEAR::raiseError(sprintf("Failed triggering folder %s. Error was: %s",
|
|
$this->name, $result->getMessage()));
|
|
}
|
|
|
|
return $result;
|
|
}
|
|
|
|
/**
|
|
* Triggers a URL.
|
|
*
|
|
* @param string $url The URL to be triggered.
|
|
* @param string $auth_user Username to authenticate with
|
|
* @param string $auth_passwd Password for basic auth
|
|
* @return boolean|PEAR_Error True if successfull.
|
|
*/
|
|
private function trigger_url($url, $auth_user = null, $auth_passwd = null)
|
|
{
|
|
require_once('HTTP/Request.php');
|
|
|
|
$request = new HTTP_Request($url);
|
|
|
|
// set authentication credentials
|
|
if ($auth_user && $auth_passwd)
|
|
$request->setBasicAuth($auth_user, $auth_passwd);
|
|
|
|
$result = $request->sendRequest(true);
|
|
// rcube::write_log('trigger', $request->getResponseBody());
|
|
|
|
return $result;
|
|
}
|
|
|
|
|
|
/* Legacy methods to keep compatibility with the old Horde Kolab_Storage classes */
|
|
|
|
/**
|
|
* Compatibility method
|
|
*/
|
|
public function getOwner()
|
|
{
|
|
PEAR::raiseError("Call to deprecated method kolab_storage_folder::getOwner()");
|
|
return $this->get_owner();
|
|
}
|
|
|
|
/**
|
|
* Get IMAP ACL information for this folder
|
|
*/
|
|
public function getMyRights()
|
|
{
|
|
PEAR::raiseError("Call to deprecated method kolab_storage_folder::getMyRights()");
|
|
return $this->get_myrights();
|
|
}
|
|
|
|
/**
|
|
* NOP to stay compatible with the formerly used Horde classes
|
|
*/
|
|
public function getData()
|
|
{
|
|
PEAR::raiseError("Call to deprecated method kolab_storage_folder::getData()");
|
|
return $this;
|
|
}
|
|
|
|
/**
|
|
* List all Kolab objects of the given type
|
|
*/
|
|
public function getObjects($type = null)
|
|
{
|
|
PEAR::raiseError("Call to deprecated method kolab_storage_folder::getObjects()");
|
|
return $this->get_objects($type);
|
|
}
|
|
|
|
/**
|
|
* Getter for a single Kolab object, identified by its UID
|
|
*/
|
|
public function getObject($uid)
|
|
{
|
|
PEAR::raiseError("Call to deprecated method kolab_storage_folder::getObject()");
|
|
return $this->get_object($uid);
|
|
}
|
|
|
|
/**
|
|
*
|
|
*/
|
|
public function getAttachment($key)
|
|
{
|
|
PEAR::raiseError("Call to deprecated method not returning anything.");
|
|
return null;
|
|
}
|
|
|
|
/**
|
|
* Alias function of delete()
|
|
*/
|
|
public function deleteMessage($id, $trigger = true, $expunge = true)
|
|
{
|
|
PEAR::raiseError("Call to deprecated method kolab_storage_folder::deleteMessage()");
|
|
return $this->delete(array('_msguid' => $id), $trigger, $expunge);
|
|
}
|
|
|
|
/**
|
|
*
|
|
*/
|
|
public function deleteAll()
|
|
{
|
|
PEAR::raiseError("Call to deprecated method kolab_storage_folder::deleteAll()");
|
|
return $this->delete_all();
|
|
}
|
|
|
|
|
|
}
|
|
|