summaryrefslogtreecommitdiffstats
path: root/apps/dav/lib/CardDAV/AddressBook.php
blob: 50aa9d219c8b52bede4e0e9e37a23744758c074c (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
<?php
/**
 * @copyright Copyright (c) 2016, ownCloud, Inc.
 *
 * @author Christoph Wurst <christoph@winzerhof-wurst.at>
 * @author Georg Ehrke <oc.list@georgehrke.com>
 * @author Joas Schilling <coding@schilljs.com>
 * @author Roeland Jago Douma <roeland@famdouma.nl>
 * @author Thomas Müller <thomas.mueller@tmit.eu>
 *
 * @license AGPL-3.0
 *
 * This code is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License, version 3,
 * as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License, version 3,
 * along with this program. If not, see <http://www.gnu.org/licenses/>
 *
 */

namespace OCA\DAV\CardDAV;

use OCA\DAV\DAV\Sharing\IShareable;
use OCA\DAV\Exception\UnsupportedLimitOnInitialSyncException;
use OCP\IL10N;
use Sabre\CardDAV\Backend\BackendInterface;
use Sabre\CardDAV\Card;
use Sabre\DAV\Exception\Forbidden;
use Sabre\DAV\Exception\NotFound;
use Sabre\DAV\PropPatch;

/**
 * Class AddressBook
 *
 * @package OCA\DAV\CardDAV
 * @property BackendInterface|CardDavBackend $carddavBackend
 */
class AddressBook extends \Sabre\CardDAV\AddressBook implements IShareable {

	/**
	 * AddressBook constructor.
	 *
	 * @param BackendInterface $carddavBackend
	 * @param array $addressBookInfo
	 * @param IL10N $l10n
	 */
	public function __construct(BackendInterface $carddavBackend, array $addressBookInfo, IL10N $l10n) {
		parent::__construct($carddavBackend, $addressBookInfo);

		if ($this->addressBookInfo['{DAV:}displayname'] === CardDavBackend::PERSONAL_ADDRESSBOOK_NAME &&
			$this->getName() === CardDavBackend::PERSONAL_ADDRESSBOOK_URI) {
			$this->addressBookInfo['{DAV:}displayname'] = $l10n->t('Contacts');
		}
	}

	/**
	 * Updates the list of shares.
	 *
	 * The first array is a list of people that are to be added to the
	 * addressbook.
	 *
	 * Every element in the add array has the following properties:
	 *   * href - A url. Usually a mailto: address
	 *   * commonName - Usually a first and last name, or false
	 *   * summary - A description of the share, can also be false
	 *   * readOnly - A boolean value
	 *
	 * Every element in the remove array is just the address string.
	 *
	 * @param array $add
	 * @param array $remove
	 * @return void
	 * @throws Forbidden
	 */
	public function updateShares(array $add, array $remove) {
		if ($this->isShared()) {
			throw new Forbidden();
		}
		$this->carddavBackend->updateShares($this, $add, $remove);
	}

	/**
	 * Returns the list of people whom this addressbook is shared with.
	 *
	 * Every element in this array should have the following properties:
	 *   * href - Often a mailto: address
	 *   * commonName - Optional, for example a first + last name
	 *   * status - See the Sabre\CalDAV\SharingPlugin::STATUS_ constants.
	 *   * readOnly - boolean
	 *   * summary - Optional, a description for the share
	 *
	 * @return array
	 */
	public function getShares() {
		if ($this->isShared()) {
			return [];
		}
		return $this->carddavBackend->getShares($this->getResourceId());
	}

	public function getACL() {
		$acl =  [
			[
				'privilege' => '{DAV:}read',
				'principal' => $this->getOwner(),
				'protected' => true,
			],[
				'privilege' => '{DAV:}write',
				'principal' => $this->getOwner(),
				'protected' => true,
			]
		];

		if ($this->getOwner() === 'principals/system/system') {
			$acl[] = [
				'privilege' => '{DAV:}read',
				'principal' => '{DAV:}authenticated',
				'protected' => true,
			];
		}

		if (!$this->isShared()) {
			return $acl;
		}

		if ($this->getOwner() !== parent::getOwner()) {
			$acl[] =  [
				'privilege' => '{DAV:}read',
				'principal' => parent::getOwner(),
				'protected' => true,
			];
			if ($this->canWrite()) {
				$acl[] = [
					'privilege' => '{DAV:}write',
					'principal' => parent::getOwner(),
					'protected' => true,
				];
			}
		}

		$acl = $this->carddavBackend->applyShareAcl($this->getResourceId(), $acl);
		$allowedPrincipals = [$this->getOwner(), parent::getOwner(), 'principals/system/system'];
		return array_filter($acl, function ($rule) use ($allowedPrincipals) {
			return \in_array($rule['principal'], $allowedPrincipals, true);
		});
	}

	public function getChildACL() {
		return $this->getACL();
	}

	public function getChild($name) {
		$obj = $this->carddavBackend->getCard($this->addressBookInfo['id'], $name);
		if (!$obj) {
			throw new NotFound('Card not found');
		}
		$obj['acl'] = $this->getChildACL();
		return new Card($this->carddavBackend, $this->addressBookInfo, $obj);
	}

	/**
	 * @return int
	 */
	public function getResourceId() {
		return $this->addressBookInfo['id'];
	}

	public function getOwner() {
		if (isset($this->addressBookInfo['{http://owncloud.org/ns}owner-principal'])) {
			return $this->addressBookInfo['{http://owncloud.org/ns}owner-principal'];
		}
		return parent::getOwner();
	}

	public function delete() {
		if (isset($this->addressBookInfo['{http://owncloud.org/ns}owner-principal'])) {
			$principal = 'principal:' . parent::getOwner();
			$shares = $this->carddavBackend->getShares($this->getResourceId());
			$shares = array_filter($shares, function ($share) use ($principal) {
				return $share['href'] === $principal;
			});
			if (empty($shares)) {
				throw new Forbidden();
			}

			$this->carddavBackend->updateShares($this, [], [
				$principal
			]);
			return;
		}
		parent::delete();
	}

	public function propPatch(PropPatch $propPatch) {
		if (isset($this->addressBookInfo['{http://owncloud.org/ns}owner-principal'])) {
			throw new Forbidden();
		}
		parent::propPatch($propPatch);
	}

	public function getContactsGroups() {
		return $this->carddavBackend->collectCardProperties($this->getResourceId(), 'CATEGORIES');
	}

	private function isShared() {
		if (!isset($this->addressBookInfo['{http://owncloud.org/ns}owner-principal'])) {
			return false;
		}

		return $this->addressBookInfo['{http://owncloud.org/ns}owner-principal'] !== $this->addressBookInfo['principaluri'];
	}

	private function canWrite() {
		if (isset($this->addressBookInfo['{http://owncloud.org/ns}read-only'])) {
			return !$this->addressBookInfo['{http://owncloud.org/ns}read-only'];
		}
		return true;
	}

	public function getChanges($syncToken, $syncLevel, $limit = null) {
		if (!$syncToken && $limit) {
			throw new UnsupportedLimitOnInitialSyncException();
		}

		return parent::getChanges($syncToken, $syncLevel, $limit);
	}
}