793 lines
24 KiB
PHP
793 lines
24 KiB
PHP
<?php
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/**
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* A class representing a DAV folder object.
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*
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* @author Aleksander Machniak <machniak@apheleia-it.ch>
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*
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* Copyright (C) 2014-2022, Apheleia IT AG <contact@apheleia-it.ch>
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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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#[AllowDynamicProperties]
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class kolab_storage_dav_folder extends kolab_storage_folder
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{
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/** @var kolab_dav_client DAV Client */
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public $dav;
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/** @var string Folder URL */
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public $href;
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/** @var array Folder DAV attributes */
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public $attributes;
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/**
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* Object constructor
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*/
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public function __construct($dav, $attributes, $type = '')
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{
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$this->attributes = $attributes;
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$this->href = $this->attributes['href'];
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$this->id = kolab_storage_dav::folder_id($dav->url, $this->href);
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$this->dav = $dav;
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$this->valid = true;
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list($this->type, $suffix) = strpos($type, '.') ? explode('.', $type) : [$type, ''];
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$this->default = $suffix == 'default';
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$this->subtype = $this->default ? '' : $suffix;
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// Init cache
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$this->cache = kolab_storage_dav_cache::factory($this);
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}
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/**
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* Returns the owner of the folder.
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*
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* @param bool Return a fully qualified owner name (i.e. including domain for shared folders)
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*
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* @return string The owner of this folder.
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*/
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public function get_owner($fully_qualified = false)
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{
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// return cached value
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if (isset($this->owner)) {
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return $this->owner;
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}
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$rcube = rcube::get_instance();
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$this->owner = $rcube->get_user_name();
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$this->valid = true;
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// TODO: Support shared folders
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return $this->owner;
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}
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/**
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* Get a folder Etag identifier
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*/
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public function get_ctag()
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{
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// Refresh requested, get the current CTag from the DAV server
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if ($this->attributes['ctag'] === false) {
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if ($fresh = $this->dav->folderInfo($this->href)) {
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$this->attributes['ctag'] = $fresh['ctag'];
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}
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}
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return $this->attributes['ctag'];
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}
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/**
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* Getter for the name of the namespace to which the folder belongs
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*
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* @return string Name of the namespace (personal, other, shared)
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*/
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public function get_namespace()
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{
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// TODO: Support shared folders
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return 'personal';
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}
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/**
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* Get the display name value of this folder
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*
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* @return string Folder name
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*/
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public function get_name()
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{
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return kolab_storage_dav::object_name($this->attributes['name']);
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}
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/**
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* Getter for the top-end folder name (not the entire path)
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*
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* @return string Name of this folder
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*/
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public function get_foldername()
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{
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return $this->attributes['name'];
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}
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public function get_folder_info()
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{
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return []; // todo ?
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}
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/**
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* Getter for parent folder path
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*
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* @return string Full path to parent folder
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*/
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public function get_parent()
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{
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// TODO
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return '';
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}
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/**
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* Compose a unique resource URI for this folder
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*/
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public function get_resource_uri()
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{
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if (!empty($this->resource_uri)) {
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return $this->resource_uri;
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}
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// compose fully qualified resource uri for this instance
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$host = preg_replace('|^https?://|', 'dav://' . urlencode($this->get_owner(true)) . '@', $this->dav->url);
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$path = $this->href[0] == '/' ? $this->href : "/{$this->href}";
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$host_path = parse_url($host, PHP_URL_PATH);
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if ($host_path && strpos($path, $host_path) === 0) {
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$path = substr($path, strlen($host_path));
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}
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$this->resource_uri = unslashify($host) . $path;
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return $this->resource_uri;
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}
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/**
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* Getter for the Cyrus mailbox identifier corresponding to this folder
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* (e.g. user/john.doe/Calendar/Personal@example.org)
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*
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* @return string Mailbox ID
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*/
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public function get_mailbox_id()
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{
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// TODO: This is used with Bonnie related features
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return '';
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}
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/**
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* Get the color value stored in metadata
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*
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* @param string Default color value to return if not set
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*
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* @return mixed Color value from the folder metadata or $default if not set
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*/
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public function get_color($default = null)
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{
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return !empty($this->attributes['color']) ? $this->attributes['color'] : $default;
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}
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/**
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* Get 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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// TODO
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return '';
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}
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/**
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* Helper method to extract folder UID
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*
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* @return string Folder's UID
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*/
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public function get_uid()
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{
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return $this->id;
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}
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/**
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* Check activation status of this folder
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*
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* @return bool True if enabled, false if not
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*/
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public function is_active()
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{
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return true; // Unused
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}
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/**
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* Change activation status of this folder
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*
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* @param bool The desired subscription status: true = active, false = not active
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*
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* @return bool True on success, false on error
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*/
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public function activate($active)
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{
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return true; // Unused
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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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* @return bool True if subscribed, false if not
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*/
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public function is_subscribed()
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{
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return true; // TODO
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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 bool The desired subscription status: true = subscribed, false = not subscribed
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*
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* @return True on success, false on error
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*/
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public function subscribe($subscribed)
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{
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return true; // TODO
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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 array|string $object The Kolab object to delete or object UID
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* @param bool $expunge Should the folder be expunged?
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*
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* @return bool True if successful, false on error
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*/
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public function delete($object, $expunge = true)
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{
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if (!$this->valid) {
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return false;
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}
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$uid = is_array($object) ? $object['uid'] : $object;
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$success = $this->dav->delete($this->object_location($uid));
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if ($success) {
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$this->cache->set($uid, false);
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}
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return $success;
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}
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/**
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* Delete all objects in a folder.
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*
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* Note: This method is used by kolab_addressbook plugin only
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*
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* @return bool True if successful, false on error
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*/
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public function delete_all()
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{
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if (!$this->valid) {
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return false;
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}
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// TODO: Maybe just deleting and re-creating a folder would be
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// better, but probably might not always work (ACL)
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$this->cache->synchronize();
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foreach (array_keys($this->cache->folder_index()) as $uid) {
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$this->dav->delete($this->object_location($uid));
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}
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$this->cache->purge();
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return true;
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}
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/**
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* Restore a previously deleted object
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*
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* @param string $uid Object UID
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*
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* @return mixed Message UID on success, false on error
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*/
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public function undelete($uid)
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{
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if (!$this->valid) {
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return false;
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}
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// TODO
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return false;
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}
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/**
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* Move a Kolab object message to another IMAP folder
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*
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* @param string Object UID
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* @param kolab_storage_dav_folder Target folder to move object into
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*
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* @return bool True on success, false on failure
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*/
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public function move($uid, $target_folder)
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{
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if (!$this->valid) {
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return false;
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}
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$source = $this->object_location($uid);
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$target = $target_folder->object_location($uid);
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$success = $this->dav->move($source, $target) !== false;
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if ($success) {
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$this->cache->set($uid, false);
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$target_folder->reset();
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$this->reset();
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}
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return $success;
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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 $uid The UID of the old object if it existed before
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*
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* @return mixed False on error or object UID on success
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*/
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public function save(&$object, $type = null, $uid = null)
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{
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if (!$this->valid || empty($object)) {
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return false;
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}
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if (!$type) {
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$type = $this->type;
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}
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$result = false;
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if (empty($uid)) {
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if (empty($object['created'])) {
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$object['created'] = new DateTime('now');
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}
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}
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else {
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$object['changed'] = new DateTime('now');
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}
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// Make sure UID exists
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if (empty($object['uid'])) {
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if ($uid) {
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$object['uid'] = $uid;
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}
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else {
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$username = rcube::get_instance()->user->get_username();
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$object['uid'] = strtoupper(md5(time() . uniqid(rand())) . '-' . substr(md5($username), 0, 16));
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}
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}
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// generate and save object message
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if ($content = $this->to_dav($object)) {
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$method = $uid ? 'update' : 'create';
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$dav_type = $this->get_dav_type();
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$result = $this->dav->{$method}($this->object_location($object['uid']), $content, $dav_type);
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// Note: $result can be NULL if the request was successful, but ETag wasn't returned
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if ($result !== false) {
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// insert/update object in the cache
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$object['etag'] = $result;
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$object['_raw'] = $content;
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$this->cache->save($object, $uid);
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$result = true;
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unset($object['_raw']);
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}
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}
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return $result;
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}
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/**
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* Fetch the object the DAV server and convert to internal format
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*
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* @param string The object UID to fetch
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* @param string The object type expected (use wildcard '*' to accept all types)
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* @param string Unused (kept for compat. with the parent class)
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*
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* @return mixed Hash array representing the Kolab object, a kolab_format instance or false if not found
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*/
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public function read_object($uid, $type = null, $folder = null)
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{
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if (!$this->valid) {
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return false;
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}
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$href = $this->object_location($uid);
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$objects = $this->dav->getData($this->href, $this->get_dav_type(), [$href]);
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if (!is_array($objects) || count($objects) != 1) {
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rcube::raise_error([
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'code' => 900,
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'message' => "Failed to fetch {$href}"
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], true);
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return false;
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}
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return $this->from_dav($objects[0]);
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}
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/**
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* Fetch multiple objects from the DAV server and convert to internal format
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*
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* @param array The object UIDs to fetch
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*
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* @return mixed Hash array representing the Kolab objects
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*/
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public function read_objects($uids)
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{
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if (!$this->valid) {
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return false;
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}
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if (empty($uids)) {
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return [];
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}
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foreach ($uids as $uid) {
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$hrefs[] = $this->object_location($uid);
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}
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$objects = $this->dav->getData($this->href, $this->get_dav_type(), $hrefs);
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if (!is_array($objects)) {
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rcube::raise_error([
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'code' => 900,
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'message' => "Failed to fetch objects from {$this->href}"
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], true);
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return false;
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}
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$objects = array_map([$this, 'from_dav'], $objects);
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foreach ($uids as $idx => $uid) {
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foreach ($objects as $oidx => $object) {
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if ($object && $object['uid'] == $uid) {
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$uids[$idx] = $object;
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unset($objects[$oidx]);
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continue 2;
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}
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}
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$uids[$idx] = false;
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}
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return $uids;
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}
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/**
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* Reset the folder status
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*/
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public function reset()
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{
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$this->cache->reset();
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$this->attributes['ctag'] = false;
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}
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/**
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* Convert DAV object into PHP array
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*
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* @param array Object data in kolab_dav_client::fetchData() format
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*
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* @return array|false Object properties, False on error
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*/
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public function from_dav($object)
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{
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if (empty($object ) || empty($object['data'])) {
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return false;
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}
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if ($this->type == 'event' || $this->type == 'task') {
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$ical = libcalendaring::get_ical();
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$objects = $ical->import($object['data']);
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if (!count($objects) || empty($objects[0]['uid'])) {
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return false;
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}
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$result = $objects[0];
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$result['_attachments'] = $result['attachments'] ?? [];
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unset($result['attachments']);
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}
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else if ($this->type == 'contact') {
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if (stripos($object['data'], 'BEGIN:VCARD') !== 0) {
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return false;
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}
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// vCard properties not supported by rcube_vcard
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$map = [
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'uid' => 'UID',
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'kind' => 'KIND',
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'member' => 'MEMBER',
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'x-kind' => 'X-ADDRESSBOOKSERVER-KIND',
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'x-member' => 'X-ADDRESSBOOKSERVER-MEMBER',
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];
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// TODO: We should probably use Sabre/Vobject to parse the vCard
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$vcard = new rcube_vcard($object['data'], RCUBE_CHARSET, false, $map);
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if (!empty($vcard->displayname) || !empty($vcard->surname) || !empty($vcard->firstname) || !empty($vcard->email)) {
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$result = $vcard->get_assoc();
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// Contact groups
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if (!empty($result['x-kind']) && implode($result['x-kind']) == 'group') {
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$result['_type'] = 'group';
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$members = isset($result['x-member']) ? $result['x-member'] : [];
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unset($result['x-kind'], $result['x-member']);
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}
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else if (!empty($result['kind']) && implode($result['kind']) == 'group') {
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$result['_type'] = 'group';
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$members = isset($result['member']) ? $result['member'] : [];
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unset($result['kind'], $result['member']);
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}
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if (isset($members)) {
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$result['member'] = [];
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foreach ($members as $member) {
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if (strpos($member, 'urn:uuid:') === 0) {
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$result['member'][] = ['uid' => substr($member, 9)];
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}
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else if (strpos($member, 'mailto:') === 0) {
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$member = reset(rcube_mime::decode_address_list(urldecode(substr($member, 7))));
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if (!empty($member['mailto'])) {
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$result['member'][] = ['email' => $member['mailto'], 'name' => $member['name']];
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}
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}
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}
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}
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if (!empty($result['uid'])) {
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$result['uid'] = preg_replace('/^urn:uuid:/', '', implode($result['uid']));
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}
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}
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else {
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return false;
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}
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}
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$result['etag'] = $object['etag'];
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$result['href'] = !empty($object['href']) ? $object['href'] : null;
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$result['uid'] = !empty($object['uid']) ? $object['uid'] : $result['uid'];
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return $result;
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}
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/**
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* Convert Kolab object into DAV format (iCalendar)
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*/
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public function to_dav($object)
|
|
{
|
|
$result = '';
|
|
|
|
if ($this->type == 'event' || $this->type == 'task') {
|
|
$ical = libcalendaring::get_ical();
|
|
|
|
if (!empty($object['exceptions'])) {
|
|
$object['recurrence']['EXCEPTIONS'] = $object['exceptions'];
|
|
}
|
|
|
|
$object['_type'] = $this->type;
|
|
|
|
// pre-process attachments
|
|
if (isset($object['_attachments']) && is_array($object['_attachments'])) {
|
|
foreach ($object['_attachments'] as $key => $attachment) {
|
|
if ($attachment === false) {
|
|
// Deleted attachment
|
|
unset($object['_attachments'][$key]);
|
|
continue;
|
|
}
|
|
|
|
// make sure size is set
|
|
if (!isset($attachment['size'])) {
|
|
if (!empty($attachment['data'])) {
|
|
if (is_resource($attachment['data'])) {
|
|
// this need to be a seekable resource, otherwise
|
|
// fstat() fails and we're unable to determine size
|
|
// here nor in rcube_imap_generic before IMAP APPEND
|
|
$stat = fstat($attachment['data']);
|
|
$attachment['size'] = $stat ? $stat['size'] : 0;
|
|
}
|
|
else {
|
|
$attachment['size'] = strlen($attachment['data']);
|
|
}
|
|
}
|
|
else if (!empty($attachment['path'])) {
|
|
$attachment['size'] = filesize($attachment['path']);
|
|
}
|
|
|
|
$object['_attachments'][$key] = $attachment;
|
|
}
|
|
}
|
|
}
|
|
|
|
$object['attachments'] = $object['_attachments'] ?? [];
|
|
unset($object['_attachments']);
|
|
|
|
$result = $ical->export([$object], null, false, [$this, 'get_attachment']);
|
|
}
|
|
else if ($this->type == 'contact') {
|
|
// copy values into vcard object
|
|
// TODO: We should probably use Sabre/Vobject to create the vCard
|
|
|
|
// vCard properties not supported by rcube_vcard
|
|
$map = ['uid' => 'UID', 'kind' => 'KIND'];
|
|
$vcard = new rcube_vcard('', RCUBE_CHARSET, false, $map);
|
|
|
|
if ((!empty($object['_type']) && $object['_type'] == 'group')
|
|
|| (!empty($object['type']) && $object['type'] == 'group')
|
|
) {
|
|
$object['kind'] = 'group';
|
|
}
|
|
|
|
foreach ($object as $key => $values) {
|
|
list($field, $section) = rcube_utils::explode(':', $key);
|
|
|
|
// avoid casting DateTime objects to array
|
|
if (is_object($values) && $values instanceof DateTimeInterface) {
|
|
$values = [$values];
|
|
}
|
|
|
|
foreach ((array) $values as $value) {
|
|
if (isset($value)) {
|
|
$vcard->set($field, $value, $section);
|
|
}
|
|
}
|
|
}
|
|
|
|
$result = $vcard->export(false);
|
|
|
|
if (!empty($object['kind']) && $object['kind'] == 'group') {
|
|
$members = '';
|
|
foreach ((array) $object['member'] as $member) {
|
|
$value = null;
|
|
if (!empty($member['uid'])) {
|
|
$value = 'urn:uuid:' . $member['uid'];
|
|
}
|
|
else if (!empty($member['email']) && !empty($member['name'])) {
|
|
$value = 'mailto:' . urlencode(sprintf('"%s" <%s>', addcslashes($member['name'], '"'), $member['email']));
|
|
}
|
|
else if (!empty($member['email'])) {
|
|
$value = 'mailto:' . $member['email'];
|
|
}
|
|
|
|
if ($value) {
|
|
$members .= "MEMBER:{$value}\r\n";
|
|
}
|
|
}
|
|
|
|
if ($members) {
|
|
$result = preg_replace('/\r\nEND:VCARD/', "\r\n{$members}END:VCARD", $result);
|
|
}
|
|
|
|
/**
|
|
Version 4.0 of the vCard format requires Cyrus >= 3.6.0, we'll use Version 3.0 for now
|
|
|
|
$result = preg_replace('/\r\nVERSION:3\.0\r\n/', "\r\nVERSION:4.0\r\n", $result);
|
|
$result = preg_replace('/\r\nN:[^\r]+/', '', $result);
|
|
$result = preg_replace('/\r\nUID:([^\r]+)/', "\r\nUID:urn:uuid:\\1", $result);
|
|
*/
|
|
|
|
$result = preg_replace('/\r\nMEMBER:([^\r]+)/', "\r\nX-ADDRESSBOOKSERVER-MEMBER:\\1", $result);
|
|
$result = preg_replace('/\r\nKIND:([^\r]+)/', "\r\nX-ADDRESSBOOKSERVER-KIND:\\1", $result);
|
|
}
|
|
}
|
|
|
|
if ($result) {
|
|
// The content must be UTF-8, otherwise if we try to fetch the object
|
|
// from server XML parsing would fail.
|
|
$result = rcube_charset::clean($result);
|
|
}
|
|
|
|
return $result;
|
|
}
|
|
|
|
public function object_location($uid)
|
|
{
|
|
return unslashify($this->href) . '/' . urlencode($uid) . '.' . $this->get_dav_ext();
|
|
}
|
|
|
|
/**
|
|
* Get a folder DAV content type
|
|
*/
|
|
public function get_dav_type()
|
|
{
|
|
return kolab_storage_dav::get_dav_type($this->type);
|
|
}
|
|
|
|
/**
|
|
* Get body of an attachment
|
|
*/
|
|
public function get_attachment($id, $event, $unused1 = null, $unused2 = false, $unused3 = null, $unused4 = false)
|
|
{
|
|
// Note: 'attachments' is defined when saving the data into the DAV server
|
|
// '_attachments' is defined after fetching the object from the DAV server
|
|
if (is_int($id) && isset($event['attachments'][$id])) {
|
|
$attachment = $event['attachments'][$id];
|
|
}
|
|
else if (is_int($id) && isset($event['_attachments'][$id])) {
|
|
$attachment = $event['_attachments'][$id];
|
|
}
|
|
else if (is_string($id) && !empty($event['attachments'])) {
|
|
foreach ($event['attachments'] as $att) {
|
|
if (!empty($att['id']) && $att['id'] === $id) {
|
|
$attachment = $att;
|
|
}
|
|
}
|
|
}
|
|
else if (is_string($id) && !empty($event['_attachments'])) {
|
|
foreach ($event['_attachments'] as $att) {
|
|
if (!empty($att['id']) && $att['id'] === $id) {
|
|
$attachment = $att;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (empty($attachment)) {
|
|
return false;
|
|
}
|
|
|
|
if (!empty($attachment['path'])) {
|
|
return file_get_contents($attachment['path']);
|
|
}
|
|
|
|
return $attachment['data'] ?? null;
|
|
}
|
|
|
|
/**
|
|
* Get a DAV file extension for specified Kolab type
|
|
*/
|
|
public function get_dav_ext()
|
|
{
|
|
$types = [
|
|
'event' => 'ics',
|
|
'task' => 'ics',
|
|
'contact' => 'vcf',
|
|
];
|
|
|
|
return $types[$this->type];
|
|
}
|
|
|
|
/**
|
|
* Return folder name as string representation of this object
|
|
*
|
|
* @return string Folder display name
|
|
*/
|
|
public function __toString()
|
|
{
|
|
return $this->attributes['name'];
|
|
}
|
|
}
|