nextcloud/apps/federatedfilesharing/lib/Notifier.php

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<?php
/**
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* @copyright Copyright (c) 2016, ownCloud, Inc.
*
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* @author Björn Schießle <bjoern@schiessle.org>
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* @author Joas Schilling <coding@schilljs.com>
* @author Robin Appelman <robin@icewind.nl>
* @author Roeland Jago Douma <roeland@famdouma.nl>
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*
* @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/>
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*
*/
namespace OCA\FederatedFileSharing;
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use OC\HintException;
use OCP\Contacts\IManager;
use OCP\Federation\ICloudId;
use OCP\Federation\ICloudIdManager;
use OCP\IURLGenerator;
use OCP\L10N\IFactory;
use OCP\Notification\INotification;
use OCP\Notification\INotifier;
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class Notifier implements INotifier {
/** @var IFactory */
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protected $factory;
/** @var IManager */
protected $contactsManager;
/** @var IURLGenerator */
protected $url;
/** @var array */
protected $federatedContacts;
/** @var ICloudIdManager */
protected $cloudIdManager;
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/**
* @param IFactory $factory
* @param IManager $contactsManager
* @param IURLGenerator $url
* @param ICloudIdManager $cloudIdManager
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*/
public function __construct(IFactory $factory, IManager $contactsManager, IURLGenerator $url, ICloudIdManager $cloudIdManager) {
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$this->factory = $factory;
$this->contactsManager = $contactsManager;
$this->url = $url;
$this->cloudIdManager = $cloudIdManager;
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}
/**
* Identifier of the notifier, only use [a-z0-9_]
*
* @return string
* @since 17.0.0
*/
public function getID(): string {
return 'federatedfilesharing';
}
/**
* Human readable name describing the notifier
*
* @return string
* @since 17.0.0
*/
public function getName(): string {
return $this->factory->get('federatedfilesharing')->t('Federated sharing');
}
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/**
* @param INotification $notification
* @param string $languageCode The code of the language that should be used to prepare the notification
* @return INotification
* @throws \InvalidArgumentException
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*/
public function prepare(INotification $notification, string $languageCode): INotification {
if ($notification->getApp() !== 'files_sharing' || $notification->getObjectType() !== 'remote_share') {
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// Not my app => throw
throw new \InvalidArgumentException();
}
// Read the language from the notification
$l = $this->factory->get('files_sharing', $languageCode);
switch ($notification->getSubject()) {
// Deal with known subjects
case 'remote_share':
$notification->setIcon($this->url->getAbsoluteURL($this->url->imagePath('core', 'actions/share.svg')));
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$params = $notification->getSubjectParameters();
if ($params[0] !== $params[1] && $params[1] !== null) {
$notification->setParsedSubject(
$l->t('You received "%3$s" as a remote share from %4$s (%1$s) (on behalf of %5$s (%2$s))', $params)
);
$initiator = $params[0];
$initiatorDisplay = isset($params[3]) ? $params[3] : null;
$owner = $params[1];
$ownerDisplay = isset($params[4]) ? $params[4] : null;
$notification->setRichSubject(
$l->t('You received {share} as a remote share from {user} (on behalf of {behalf})'),
[
'share' => [
'type' => 'pending-federated-share',
'id' => $notification->getObjectId(),
'name' => $params[2],
],
'user' => $this->createRemoteUser($initiator, $initiatorDisplay),
'behalf' => $this->createRemoteUser($owner, $ownerDisplay),
]
);
} else {
$notification->setParsedSubject(
$l->t('You received "%3$s" as a remote share from %4$s (%1$s)', $params)
);
$owner = $params[0];
$ownerDisplay = isset($params[3]) ? $params[3] : null;
$notification->setRichSubject(
$l->t('You received {share} as a remote share from {user}'),
[
'share' => [
'type' => 'pending-federated-share',
'id' => $notification->getObjectId(),
'name' => $params[2],
],
'user' => $this->createRemoteUser($owner, $ownerDisplay),
]
);
}
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// Deal with the actions for a known subject
foreach ($notification->getActions() as $action) {
switch ($action->getLabel()) {
case 'accept':
$action->setParsedLabel(
(string) $l->t('Accept')
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)
->setPrimary(true);
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break;
case 'decline':
$action->setParsedLabel(
(string) $l->t('Decline')
);
break;
}
$notification->addParsedAction($action);
}
return $notification;
default:
// Unknown subject => Unknown notification => throw
throw new \InvalidArgumentException();
}
}
/**
* @param string $cloudId
* @return array
*/
protected function createRemoteUser($cloudId, $displayName = null) {
try {
$resolvedId = $this->cloudIdManager->resolveCloudId($cloudId);
if ($displayName === null) {
$displayName = $this->getDisplayName($resolvedId);
}
$user = $resolvedId->getUser();
$server = $resolvedId->getRemote();
} catch (HintException $e) {
$user = $cloudId;
$displayName = $cloudId;
$server = '';
}
return [
'type' => 'user',
'id' => $user,
'name' => $displayName,
'server' => $server,
];
}
/**
* Try to find the user in the contacts
*
* @param ICloudId $cloudId
* @return string
*/
protected function getDisplayName(ICloudId $cloudId) {
$server = $cloudId->getRemote();
$user = $cloudId->getUser();
if (strpos($server, 'http://') === 0) {
$server = substr($server, strlen('http://'));
} else if (strpos($server, 'https://') === 0) {
$server = substr($server, strlen('https://'));
}
try {
return $this->getDisplayNameFromContact($cloudId->getId());
} catch (\OutOfBoundsException $e) {
}
try {
$this->getDisplayNameFromContact($user . '@http://' . $server);
} catch (\OutOfBoundsException $e) {
}
try {
$this->getDisplayNameFromContact($user . '@https://' . $server);
} catch (\OutOfBoundsException $e) {
}
return $cloudId->getId();
}
/**
* Try to find the user in the contacts
*
* @param string $federatedCloudId
* @return string
* @throws \OutOfBoundsException when there is no contact for the id
*/
protected function getDisplayNameFromContact($federatedCloudId) {
if (isset($this->federatedContacts[$federatedCloudId])) {
if ($this->federatedContacts[$federatedCloudId] !== '') {
return $this->federatedContacts[$federatedCloudId];
} else {
throw new \OutOfBoundsException('No contact found for federated cloud id');
}
}
$addressBookEntries = $this->contactsManager->search($federatedCloudId, ['CLOUD']);
foreach ($addressBookEntries as $entry) {
if (isset($entry['CLOUD'])) {
foreach ($entry['CLOUD'] as $cloudID) {
if ($cloudID === $federatedCloudId) {
$this->federatedContacts[$federatedCloudId] = $entry['FN'];
return $entry['FN'];
}
}
}
}
$this->federatedContacts[$federatedCloudId] = '';
throw new \OutOfBoundsException('No contact found for federated cloud id');
}
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}