mirror of
https://github.com/chylex/Nextcloud-News.git
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522 lines
17 KiB
PHP
522 lines
17 KiB
PHP
<?php
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/**
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* Nextcloud - News
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*
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* This file is licensed under the Affero General Public License version 3 or
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* later. See the COPYING file.
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*
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* @author Alessandro Cosentino <cosenal@gmail.com>
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* @author Bernhard Posselt <dev@bernhard-posselt.com>
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* @copyright 2012 Alessandro Cosentino
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* @copyright 2012-2014 Bernhard Posselt
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*/
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namespace OCA\News\Service;
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use FeedIo\Reader\ReadErrorException;
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use HTMLPurifier;
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use OCA\News\AppInfo\Application;
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use OCP\IConfig;
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use OCA\News\Service\Exceptions\ServiceConflictException;
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use OCA\News\Service\Exceptions\ServiceNotFoundException;
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use OCP\AppFramework\Db\Entity;
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use OCP\IL10N;
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use OCP\AppFramework\Db\DoesNotExistException;
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use OCA\News\Db\Feed;
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use OCA\News\Db\Item;
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use OCA\News\Db\FeedMapper;
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use OCA\News\Db\ItemMapper;
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use OCA\News\Fetcher\Fetcher;
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use OCA\News\Utility\Time;
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use Psr\Log\LoggerInterface;
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/**
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* Class LegacyFeedService
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*
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* @package OCA\News\Service
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* @deprecated use FeedServiceV2
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*/
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class FeedService extends Service
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{
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private $feedFetcher;
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private $itemMapper;
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private $feedMapper;
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private $l10n;
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private $timeFactory;
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private $autoPurgeMinimumInterval;
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private $purifier;
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private $loggerParams;
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public function __construct(
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FeedMapper $legacyFeedMapper,
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Fetcher $feedFetcher,
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ItemMapper $legacyItemMapper,
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LoggerInterface $logger,
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IL10N $l10n,
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Time $timeFactory,
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IConfig $config,
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HTMLPurifier $purifier
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) {
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parent::__construct($legacyFeedMapper, $logger);
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$this->feedFetcher = $feedFetcher;
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$this->feedMapper = $legacyFeedMapper;
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$this->itemMapper = $legacyItemMapper;
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$this->logger = $logger;
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$this->l10n = $l10n;
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$this->timeFactory = $timeFactory;
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$this->autoPurgeMinimumInterval = $config->getAppValue(
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Application::NAME,
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'autoPurgeMinimumInterval',
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Application::DEFAULT_SETTINGS['autoPurgeMinimumInterval']
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);
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$this->purifier = $purifier;
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$this->loggerParams = ['app' => Application::NAME];
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}
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/**
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* Finds all feeds of a user
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*
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* @param string $userId the name of the user
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*
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* @return Feed[]
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*/
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public function findAllForUser($userId, array $params = []): array
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{
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return $this->feedMapper->findAllFromUser($userId);
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}
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/**
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* Finds all feeds from all users
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*
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* @return array of feeds
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*/
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public function findAllFromAllUsers()
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{
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return $this->findAll();
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}
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/**
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* Creates a new feed
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*
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* @param string $feedUrl the url to the feed
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* @param int|null $folderId the folder where it should be put into, null for root
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* folder
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* @param string $userId for which user the feed should be created
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* @param string|null $title if given, this is used for the opml feed title
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* @param string|null $user if given, basic auth is set for this feed
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* @param string|null $password if given, basic auth is set for this
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* feed. Ignored if user is null or an empty string
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*
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* @return Feed the newly created feed
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* @throws ServiceConflictException if the feed exists already
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* @throws ServiceNotFoundException if the url points to an invalid feed
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*/
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public function create(
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string $feedUrl,
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?int $folderId,
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string $userId,
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string $title = null,
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string $user = null,
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string $password = null
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) {
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// first try if the feed exists already
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try {
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/**
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* @var Feed $feed
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* @var Item[] $items
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*/
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list($feed, $items) = $this->feedFetcher->fetch($feedUrl, true, null, false, $user, $password);
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// try again if feed exists depending on the reported link
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if ($feed === null) {
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throw new ServiceNotFoundException($this->l10n->t('Can not add feed: Unable to parse feed'));
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}
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try {
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$hash = $feed->getUrlHash();
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$this->feedMapper->findByUrlHash($hash, $userId);
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throw new ServiceConflictException(
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$this->l10n->t('Can not add feed: Exists already')
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);
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} catch (DoesNotExistException $ex) {
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// If no matching feed was found everything was ok
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}
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// insert feed
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$itemCount = count($items);
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$feed->setBasicAuthUser($user);
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$feed->setBasicAuthPassword($password);
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$feed->setFolderId($folderId);
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$feed->setUserId($userId);
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$feed->setArticlesPerUpdate($itemCount);
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if (!empty($title)) {
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$feed->setTitle($title);
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}
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$feed = $this->feedMapper->insert($feed);
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// insert items in reverse order because the first one is usually
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// the newest item
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$unreadCount = 0;
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foreach (array_reverse($items) as $item) {
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$item->setFeedId($feed->getId());
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// check if item exists (guidhash is the same)
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// and ignore it if it does
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try {
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$this->itemMapper->findByGuidHash(
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$item->getGuidHash(),
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$item->getFeedId(),
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$userId
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);
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continue;
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} catch (DoesNotExistException $ex) {
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$unreadCount += 1;
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$item->setBody($this->purifier->purify($item->getBody()));
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$this->itemMapper->insert($item);
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}
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}
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// set unread count
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$feed->setUnreadCount($unreadCount);
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return $feed;
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} catch (ReadErrorException $ex) {
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$this->logger->debug($ex->getMessage(), $this->loggerParams);
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throw new ServiceNotFoundException($ex->getMessage());
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}
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}
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/**
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* Runs all the feed updates
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*/
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public function updateAll()
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{
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// TODO: this method is not covered by any tests
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$feeds = $this->feedMapper->findAll();
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foreach ($feeds as $feed) {
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try {
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$this->update($feed->getId(), $feed->getUserId());
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} catch (\Exception $ex) {
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// something is really wrong here, log it
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$this->logger->error(
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'Unexpected error when updating feed ' . $ex->getMessage(),
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$this->loggerParams
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);
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}
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}
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}
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/**
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* Updates a single feed
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*
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* @param string $userId the id of the user
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* @param int $feedId the id of the feed that should be updated
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* @param bool $forceUpdate update even if the article exists already
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*
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* @throws ServiceNotFoundException if the feed does not exist
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* @return Feed the updated feed entity
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*/
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public function update(string $userId, int $feedId, $forceUpdate = false)
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{
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/** @var Feed $existingFeed */
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$existingFeed = $this->find($userId, $feedId);
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if ($existingFeed->getPreventUpdate() === true) {
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return $existingFeed;
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}
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// for backwards compability it can be that the location is not set
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// yet, if so use the url
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$location = $existingFeed->getLocation();
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if (!$location) {
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$location = $existingFeed->getUrl();
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}
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try {
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list($fetchedFeed, $items) = $this->feedFetcher->fetch(
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$location,
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false,
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$existingFeed->getHttpLastModified(),
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$existingFeed->getFullTextEnabled(),
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$existingFeed->getBasicAuthUser(),
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$existingFeed->getBasicAuthPassword()
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);
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// if there is no feed it means that no update took place
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if (!$fetchedFeed) {
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return $existingFeed;
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}
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// update number of articles on every feed update
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$itemCount = count($items);
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// this is needed to adjust to updates that add more items
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// than when the feed was created. You can't update the count
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// if it's lower because it may be due to the caching headers
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// that were sent as the request and it might cause unwanted
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// deletion and reappearing of feeds
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if ($itemCount > $existingFeed->getArticlesPerUpdate()) {
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$existingFeed->setArticlesPerUpdate($itemCount);
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}
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$existingFeed->setHttpLastModified(
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$fetchedFeed->getHttpLastModified()
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);
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$existingFeed->setHttpEtag($fetchedFeed->getHttpEtag());
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$existingFeed->setLocation($fetchedFeed->getLocation());
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// insert items in reverse order because the first one is
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// usually the newest item
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for ($i = $itemCount - 1; $i >= 0; $i--) {
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$item = $items[$i];
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$item->setFeedId($existingFeed->getId());
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try {
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$dbItem = $this->itemMapper->findByGuidHash(
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$item->getGuidHash(),
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$feedId,
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$userId
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);
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// in case of update
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if ($forceUpdate
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|| $item->getUpdatedDate() > $dbItem->getUpdatedDate()
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) {
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$dbItem->setTitle($item->getTitle());
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$dbItem->setUrl($item->getUrl());
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$dbItem->setAuthor($item->getAuthor());
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$dbItem->setSearchIndex($item->getSearchIndex());
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$dbItem->setRtl($item->getRtl());
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$dbItem->setLastModified($item->getLastModified());
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$dbItem->setPubDate($item->getPubDate());
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$dbItem->setUpdatedDate($item->getUpdatedDate());
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$dbItem->setEnclosureMime($item->getEnclosureMime());
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$dbItem->setEnclosureLink($item->getEnclosureLink());
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$dbItem->setBody(
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$this->purifier->purify($item->getBody())
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);
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// update modes: 0 nothing, 1 set unread
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if ($existingFeed->getUpdateMode() === 1) {
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$dbItem->setUnread(true);
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}
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$this->itemMapper->update($dbItem);
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}
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} catch (DoesNotExistException $ex) {
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$item->setBody(
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$this->purifier->purify($item->getBody())
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);
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$this->itemMapper->insert($item);
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}
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}
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// mark feed as successfully updated
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$existingFeed->setUpdateErrorCount(0);
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$existingFeed->setLastUpdateError('');
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} catch (ReadErrorException $ex) {
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$existingFeed->setUpdateErrorCount(
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$existingFeed->getUpdateErrorCount() + 1
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);
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$existingFeed->setLastUpdateError($ex->getMessage());
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}
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$this->feedMapper->update($existingFeed);
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return $this->find($userId, $feedId);
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}
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/**
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* Import articles
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*
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* @param array $json the array with json
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* @param string $userId the username
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*
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* @return Feed if one had to be created for nonexistent feeds
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*/
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public function importArticles($json, $userId)
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{
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$url = 'http://nextcloud/nofeed';
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$urlHash = md5($url);
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// build assoc array for fast access
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$feeds = $this->findAllForUser($userId);
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$feedsDict = [];
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foreach ($feeds as $feed) {
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$feedsDict[$feed->getLink()] = $feed;
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}
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$createdFeed = false;
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// loop over all items and get the corresponding feed
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// if the feed does not exist, create a separate feed for them
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foreach ($json as $entry) {
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$item = Item::fromImport($entry);
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$feedLink = $entry['feedLink']; // this is not set on the item yet
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if (array_key_exists($feedLink, $feedsDict)) {
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$feed = $feedsDict[$feedLink];
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$item->setFeedId($feed->getId());
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} elseif (array_key_exists($url, $feedsDict)) {
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$feed = $feedsDict[$url];
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$item->setFeedId($feed->getId());
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} else {
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$createdFeed = true;
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$feed = new Feed();
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$feed->setUserId($userId);
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$feed->setLink($url);
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$feed->setUrl($url);
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$feed->setTitle($this->l10n->t('Articles without feed'));
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$feed->setAdded($this->timeFactory->getTime());
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$feed->setFolderId(null);
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$feed->setPreventUpdate(true);
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/** @var Feed $feed */
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$feed = $this->feedMapper->insert($feed);
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$item->setFeedId($feed->getId());
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$feedsDict[$feed->getLink()] = $feed;
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}
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try {
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// if item exists, copy the status
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$existingItem = $this->itemMapper->findByGuidHash(
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$item->getGuidHash(),
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$feed->getId(),
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$userId
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);
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$existingItem->setStatus($item->getStatus());
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$this->itemMapper->update($existingItem);
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} catch (DoesNotExistException $ex) {
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$item->setBody($this->purifier->purify($item->getBody()));
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$item->generateSearchIndex();
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$this->itemMapper->insert($item);
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}
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}
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if ($createdFeed) {
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return $this->feedMapper->findByUrlHash($urlHash, $userId);
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}
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return null;
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}
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/**
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* Use this to mark a feed as deleted. That way it can be un-deleted
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*
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* @param int $feedId the id of the feed that should be deleted
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* @param string $userId the name of the user for security reasons
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*
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* @throws ServiceNotFoundException when feed does not exist
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*/
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public function markDeleted(int $feedId, string $userId)
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{
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$feed = $this->find($userId, $feedId);
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$feed->setDeletedAt($this->timeFactory->getTime());
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$this->feedMapper->update($feed);
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}
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/**
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* Use this to undo a feed deletion
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*
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* @param int $feedId the id of the feed that should be restored
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* @param string $userId the name of the user for security reasons
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*
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* @throws ServiceNotFoundException when feed does not exist
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*/
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public function unmarkDeleted(int $feedId, string $userId)
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{
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$feed = $this->find($userId, $feedId);
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$feed->setDeletedAt(0);
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$this->feedMapper->update($feed);
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}
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/**
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* Deletes all deleted feeds
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*
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* @param string $userId if given it purges only feeds of that user
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* @param boolean $useInterval defaults to true, if true it only purges
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* entries in a given interval to give the user a chance to undo the
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* deletion
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*/
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public function purgeDeleted($userId = null, $useInterval = true)
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{
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$deleteOlderThan = null;
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if ($useInterval) {
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$now = $this->timeFactory->getTime();
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$deleteOlderThan = $now - $this->autoPurgeMinimumInterval;
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}
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$toDelete = $this->feedMapper->getToDelete($deleteOlderThan, $userId);
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foreach ($toDelete as $feed) {
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$this->feedMapper->delete($feed);
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}
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}
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/**
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* Deletes all feeds of a user, delete items first since the user_id
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* is not defined in there
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*
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* @param string $userId the name of the user
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*/
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public function deleteUser($userId)
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{
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$this->feedMapper->deleteUser($userId);
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}
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/**
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* @param int $feedId ID of the feed.
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* @param string $userId ID of the user.
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* @param array $diff An array containing the fields to update, e.g.:
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* <code>
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* [
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* 'ordering' => 1,
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* 'fullTextEnabled' => true,
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* 'pinned' => true,
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* 'updateMode' => 0,
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* 'title' => 'title'
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* ]
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* </code>
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*
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* @throws ServiceNotFoundException if feed does not exist
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* @return Feed The patched feed
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*/
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public function patch(int $feedId, string $userId, array $diff = [])
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{
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$feed = $this->find($userId, $feedId);
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foreach ($diff as $attribute => $value) {
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$method = 'set' . ucfirst($attribute);
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$feed->$method($value);
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}
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// special feed updates
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if (array_key_exists('fullTextEnabled', $diff)) {
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// disable caching for the next update
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$feed->setHttpEtag('');
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$feed->setHttpLastModified(0);
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$this->feedMapper->update($feed);
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return $this->update($userId, $feedId, true);
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}
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return $this->feedMapper->update($feed);
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}
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public function findAll(): array
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{
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return $this->feedMapper->findAll();
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}
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}
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