nextcloud/lib/private/activitymanager.php

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<?php
/**
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* @author Björn Schießle <schiessle@owncloud.com>
* @author Joas Schilling <nickvergessen@owncloud.com>
* @author Lukas Reschke <lukas@owncloud.com>
* @author Thomas Müller <thomas.mueller@tmit.eu>
*
* @copyright Copyright (c) 2015, ownCloud, Inc.
* @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 OC;
use OCP\Activity\IConsumer;
use OCP\Activity\IExtension;
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use OCP\Activity\IManager;
use OCP\IConfig;
use OCP\IRequest;
use OCP\IUserSession;
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class ActivityManager implements IManager {
/** @var IRequest */
protected $request;
/** @var IUserSession */
protected $session;
/** @var IConfig */
protected $config;
/**
* constructor of the controller
*
* @param IRequest $request
* @param IUserSession $session
* @param IConfig $config
*/
public function __construct(IRequest $request,
IUserSession $session,
IConfig $config) {
$this->request = $request;
$this->session = $session;
$this->config = $config;
}
/** @var \Closure[] */
private $consumersClosures = array();
/** @var IConsumer[] */
private $consumers = array();
/** @var \Closure[] */
private $extensionsClosures = array();
/** @var IExtension[] */
private $extensions = array();
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/** @var array list of filters "name" => "is valid" */
protected $validFilters = array(
'all' => true,
'by' => true,
'self' => true,
);
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/** @var array list of type icons "type" => "css class" */
protected $typeIcons = array();
/** @var array list of special parameters "app" => ["text" => ["parameter" => "type"]] */
protected $specialParameters = array();
/**
* @return \OCP\Activity\IConsumer[]
*/
protected function getConsumers() {
if (!empty($this->consumers)) {
return $this->consumers;
}
$this->consumers = [];
foreach($this->consumersClosures as $consumer) {
$c = $consumer();
if ($c instanceof IConsumer) {
$this->consumers[] = $c;
} else {
throw new \InvalidArgumentException('The given consumer does not implement the \OCP\Activity\IConsumer interface');
}
}
return $this->consumers;
}
/**
* @return \OCP\Activity\IExtension[]
*/
protected function getExtensions() {
if (!empty($this->extensions)) {
return $this->extensions;
}
$this->extensions = [];
foreach($this->extensionsClosures as $extension) {
$e = $extension();
if ($e instanceof IExtension) {
$this->extensions[] = $e;
} else {
throw new \InvalidArgumentException('The given extension does not implement the \OCP\Activity\IExtension interface');
}
}
return $this->extensions;
}
/**
* @param string $app The app where this event is associated with
* @param string $subject A short description of the event
* @param array $subjectParams Array with parameters that are filled in the subject
* @param string $message A longer description of the event
* @param array $messageParams Array with parameters that are filled in the message
* @param string $file The file including path where this event is associated with
* @param string $link A link where this event is associated with
* @param string $affectedUser Recipient of the activity
* @param string $type Type of the notification
* @param int $priority Priority of the notification (@deprecated)
* @param string $objectType Object type can be used to filter the activities later (e.g. files)
* @param int $objectId Object id can be used to filter the activities later (e.g. the ID of the cache entry)
* @return null
*/
public function publishActivity($app, $subject, $subjectParams, $message, $messageParams, $file, $link, $affectedUser, $type, $priority, $objectType = '', $objectId = 0) {
foreach($this->getConsumers() as $c) {
try {
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$c->receive(
$app,
$subject,
$subjectParams,
$message,
$messageParams,
$file,
$link,
$affectedUser,
$type,
$objectType,
$objectId
);
} catch (\Exception $ex) {
// TODO: log the exception
}
}
}
/**
* In order to improve lazy loading a closure can be registered which will be called in case
* activity consumers are actually requested
*
* $callable has to return an instance of OCA\Activity\IConsumer
*
* @param \Closure $callable
*/
public function registerConsumer(\Closure $callable) {
array_push($this->consumersClosures, $callable);
$this->consumers = [];
}
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/**
* In order to improve lazy loading a closure can be registered which will be called in case
* activity consumers are actually requested
*
* $callable has to return an instance of OCA\Activity\IConsumer
*
* @param \Closure $callable
* @return void
*/
public function registerExtension(\Closure $callable) {
array_push($this->extensionsClosures, $callable);
$this->extensions = [];
}
/**
* Will return additional notification types as specified by other apps
*
* @param string $languageCode
* @return array
*/
public function getNotificationTypes($languageCode) {
$notificationTypes = array();
foreach ($this->getExtensions() as $c) {
$result = $c->getNotificationTypes($languageCode);
if (is_array($result)) {
$notificationTypes = array_merge($notificationTypes, $result);
}
}
return $notificationTypes;
}
/**
* @param string $method
* @return array
*/
public function getDefaultTypes($method) {
$defaultTypes = array();
foreach ($this->getExtensions() as $c) {
$types = $c->getDefaultTypes($method);
if (is_array($types)) {
$defaultTypes = array_merge($types, $defaultTypes);
}
}
return $defaultTypes;
}
/**
* @param string $type
* @return string
*/
public function getTypeIcon($type) {
if (isset($this->typeIcons[$type])) {
return $this->typeIcons[$type];
}
foreach ($this->getExtensions() as $c) {
$icon = $c->getTypeIcon($type);
if (is_string($icon)) {
$this->typeIcons[$type] = $icon;
return $icon;
}
}
$this->typeIcons[$type] = '';
return '';
}
/**
* @param string $app
* @param string $text
* @param array $params
* @param boolean $stripPath
* @param boolean $highlightParams
* @param string $languageCode
* @return string|false
*/
public function translate($app, $text, $params, $stripPath, $highlightParams, $languageCode) {
foreach ($this->getExtensions() as $c) {
$translation = $c->translate($app, $text, $params, $stripPath, $highlightParams, $languageCode);
if (is_string($translation)) {
return $translation;
}
}
return false;
}
/**
* @param string $app
* @param string $text
* @return array|false
*/
public function getSpecialParameterList($app, $text) {
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if (isset($this->specialParameters[$app][$text])) {
return $this->specialParameters[$app][$text];
}
if (!isset($this->specialParameters[$app])) {
$this->specialParameters[$app] = array();
}
foreach ($this->getExtensions() as $c) {
$specialParameter = $c->getSpecialParameterList($app, $text);
if (is_array($specialParameter)) {
$this->specialParameters[$app][$text] = $specialParameter;
return $specialParameter;
}
}
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$this->specialParameters[$app][$text] = false;
return false;
}
/**
* @param array $activity
* @return integer|false
*/
public function getGroupParameter($activity) {
foreach ($this->getExtensions() as $c) {
$parameter = $c->getGroupParameter($activity);
if ($parameter !== false) {
return $parameter;
}
}
return false;
}
/**
* @return array
*/
public function getNavigation() {
$entries = array(
'apps' => array(),
'top' => array(),
);
foreach ($this->getExtensions() as $c) {
$additionalEntries = $c->getNavigation();
if (is_array($additionalEntries)) {
$entries['apps'] = array_merge($entries['apps'], $additionalEntries['apps']);
$entries['top'] = array_merge($entries['top'], $additionalEntries['top']);
}
}
return $entries;
}
/**
* @param string $filterValue
* @return boolean
*/
public function isFilterValid($filterValue) {
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if (isset($this->validFilters[$filterValue])) {
return $this->validFilters[$filterValue];
}
foreach ($this->getExtensions() as $c) {
if ($c->isFilterValid($filterValue) === true) {
$this->validFilters[$filterValue] = true;
return true;
}
}
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$this->validFilters[$filterValue] = false;
return false;
}
/**
* @param array $types
* @param string $filter
* @return array
*/
public function filterNotificationTypes($types, $filter) {
if (!$this->isFilterValid($filter)) {
return $types;
}
foreach ($this->getExtensions() as $c) {
$result = $c->filterNotificationTypes($types, $filter);
if (is_array($result)) {
$types = $result;
}
}
return $types;
}
/**
* @param string $filter
* @return array
*/
public function getQueryForFilter($filter) {
if (!$this->isFilterValid($filter)) {
return [null, null];
}
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$conditions = array();
$parameters = array();
foreach ($this->getExtensions() as $c) {
$result = $c->getQueryForFilter($filter);
if (is_array($result)) {
list($condition, $parameter) = $result;
if ($condition && is_array($parameter)) {
$conditions[] = $condition;
$parameters = array_merge($parameters, $parameter);
}
}
}
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if (empty($conditions)) {
return array(null, null);
}
return array(' and ((' . implode(') or (', $conditions) . '))', $parameters);
}
/**
* Get the user we need to use
*
* Either the user is logged in, or we try to get it from the token
*
* @return string
* @throws \UnexpectedValueException If the token is invalid, does not exist or is not unique
*/
public function getCurrentUserId() {
if (!$this->session->isLoggedIn()) {
return $this->getUserFromToken();
} else {
return $this->session->getUser()->getUID();
}
}
/**
* Get the user for the token
*
* @return string
* @throws \UnexpectedValueException If the token is invalid, does not exist or is not unique
*/
protected function getUserFromToken() {
$token = (string) $this->request->getParam('token', '');
if (strlen($token) !== 30) {
throw new \UnexpectedValueException('The token is invalid');
}
$users = $this->config->getUsersForUserValue('activity', 'rsstoken', $token);
if (sizeof($users) !== 1) {
// No unique user found
throw new \UnexpectedValueException('The token is invalid');
}
// Token found login as that user
return array_shift($users);
}
}