384 lines
11 KiB
PHP
384 lines
11 KiB
PHP
<?php
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namespace Shaarli\Bookmark;
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use Exception;
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use Shaarli\Bookmark\Exception\BookmarkNotFoundException;
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use Shaarli\Bookmark\Exception\EmptyDataStoreException;
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use Shaarli\Config\ConfigManager;
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use Shaarli\Formatter\BookmarkMarkdownFormatter;
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use Shaarli\History;
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use Shaarli\Legacy\LegacyLinkDB;
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use Shaarli\Legacy\LegacyUpdater;
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use Shaarli\Render\PageCacheManager;
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use Shaarli\Updater\UpdaterUtils;
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/**
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* Class BookmarksService
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*
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* This is the entry point to manipulate the bookmark DB.
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* It manipulates loads links from a file data store containing all bookmarks.
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*
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* It also triggers the legacy format (bookmarks as arrays) migration.
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*/
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class BookmarkFileService implements BookmarkServiceInterface
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{
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/** @var Bookmark[] instance */
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protected $bookmarks;
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/** @var BookmarkIO instance */
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protected $bookmarksIO;
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/** @var BookmarkFilter */
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protected $bookmarkFilter;
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/** @var ConfigManager instance */
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protected $conf;
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/** @var History instance */
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protected $history;
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/** @var PageCacheManager instance */
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protected $pageCacheManager;
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/** @var bool true for logged in users. Default value to retrieve private bookmarks. */
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protected $isLoggedIn;
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/**
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* @inheritDoc
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*/
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public function __construct(ConfigManager $conf, History $history, $isLoggedIn)
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{
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$this->conf = $conf;
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$this->history = $history;
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$this->pageCacheManager = new PageCacheManager($this->conf->get('resource.page_cache'));
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$this->bookmarksIO = new BookmarkIO($this->conf);
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$this->isLoggedIn = $isLoggedIn;
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if (!$this->isLoggedIn && $this->conf->get('privacy.hide_public_links', false)) {
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$this->bookmarks = [];
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} else {
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try {
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$this->bookmarks = $this->bookmarksIO->read();
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} catch (EmptyDataStoreException $e) {
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$this->bookmarks = new BookmarkArray();
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if ($isLoggedIn) {
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$this->save();
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}
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}
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if (! $this->bookmarks instanceof BookmarkArray) {
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$this->migrate();
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exit(
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'Your data store has been migrated, please reload the page.'. PHP_EOL .
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'If this message keeps showing up, please delete data/updates.txt file.'
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);
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}
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}
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$this->bookmarkFilter = new BookmarkFilter($this->bookmarks);
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}
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/**
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* @inheritDoc
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*/
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public function findByHash($hash)
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{
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$bookmark = $this->bookmarkFilter->filter(BookmarkFilter::$FILTER_HASH, $hash);
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// PHP 7.3 introduced array_key_first() to avoid this hack
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$first = reset($bookmark);
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if (! $this->isLoggedIn && $first->isPrivate()) {
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throw new Exception('Not authorized');
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}
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return $bookmark;
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}
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/**
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* @inheritDoc
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*/
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public function findByUrl($url)
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{
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return $this->bookmarks->getByUrl($url);
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}
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/**
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* @inheritDoc
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*/
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public function search($request = [], $visibility = null, $caseSensitive = false, $untaggedOnly = false)
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{
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if ($visibility === null) {
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$visibility = $this->isLoggedIn ? BookmarkFilter::$ALL : BookmarkFilter::$PUBLIC;
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}
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// Filter bookmark database according to parameters.
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$searchtags = isset($request['searchtags']) ? $request['searchtags'] : '';
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$searchterm = isset($request['searchterm']) ? $request['searchterm'] : '';
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return $this->bookmarkFilter->filter(
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BookmarkFilter::$FILTER_TAG | BookmarkFilter::$FILTER_TEXT,
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[$searchtags, $searchterm],
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$caseSensitive,
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$visibility,
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$untaggedOnly
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);
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}
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/**
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* @inheritDoc
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*/
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public function get($id, $visibility = null)
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{
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if (! isset($this->bookmarks[$id])) {
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throw new BookmarkNotFoundException();
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}
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if ($visibility === null) {
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$visibility = $this->isLoggedIn ? BookmarkFilter::$ALL : BookmarkFilter::$PUBLIC;
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}
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$bookmark = $this->bookmarks[$id];
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if (($bookmark->isPrivate() && $visibility != 'all' && $visibility != 'private')
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|| (! $bookmark->isPrivate() && $visibility != 'all' && $visibility != 'public')
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) {
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throw new Exception('Unauthorized');
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}
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return $bookmark;
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}
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/**
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* @inheritDoc
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*/
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public function set($bookmark, $save = true)
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{
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if ($this->isLoggedIn !== true) {
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throw new Exception(t('You\'re not authorized to alter the datastore'));
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}
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if (! $bookmark instanceof Bookmark) {
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throw new Exception(t('Provided data is invalid'));
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}
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if (! isset($this->bookmarks[$bookmark->getId()])) {
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throw new BookmarkNotFoundException();
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}
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$bookmark->validate();
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$bookmark->setUpdated(new \DateTime());
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$this->bookmarks[$bookmark->getId()] = $bookmark;
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if ($save === true) {
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$this->save();
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$this->history->updateLink($bookmark);
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}
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return $this->bookmarks[$bookmark->getId()];
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}
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/**
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* @inheritDoc
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*/
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public function add($bookmark, $save = true)
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{
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if ($this->isLoggedIn !== true) {
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throw new Exception(t('You\'re not authorized to alter the datastore'));
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}
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if (! $bookmark instanceof Bookmark) {
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throw new Exception(t('Provided data is invalid'));
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}
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if (! empty($bookmark->getId())) {
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throw new Exception(t('This bookmarks already exists'));
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}
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$bookmark->setId($this->bookmarks->getNextId());
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$bookmark->validate();
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$this->bookmarks[$bookmark->getId()] = $bookmark;
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if ($save === true) {
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$this->save();
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$this->history->addLink($bookmark);
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}
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return $this->bookmarks[$bookmark->getId()];
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}
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/**
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* @inheritDoc
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*/
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public function addOrSet($bookmark, $save = true)
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{
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if ($this->isLoggedIn !== true) {
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throw new Exception(t('You\'re not authorized to alter the datastore'));
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}
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if (! $bookmark instanceof Bookmark) {
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throw new Exception('Provided data is invalid');
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}
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if ($bookmark->getId() === null) {
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return $this->add($bookmark, $save);
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}
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return $this->set($bookmark, $save);
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}
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/**
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* @inheritDoc
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*/
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public function remove($bookmark, $save = true)
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{
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if ($this->isLoggedIn !== true) {
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throw new Exception(t('You\'re not authorized to alter the datastore'));
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}
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if (! $bookmark instanceof Bookmark) {
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throw new Exception(t('Provided data is invalid'));
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}
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if (! isset($this->bookmarks[$bookmark->getId()])) {
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throw new BookmarkNotFoundException();
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}
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unset($this->bookmarks[$bookmark->getId()]);
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if ($save === true) {
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$this->save();
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$this->history->deleteLink($bookmark);
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}
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}
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/**
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* @inheritDoc
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*/
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public function exists($id, $visibility = null)
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{
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if (! isset($this->bookmarks[$id])) {
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return false;
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}
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if ($visibility === null) {
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$visibility = $this->isLoggedIn ? 'all' : 'public';
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}
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$bookmark = $this->bookmarks[$id];
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if (($bookmark->isPrivate() && $visibility != 'all' && $visibility != 'private')
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|| (! $bookmark->isPrivate() && $visibility != 'all' && $visibility != 'public')
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) {
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return false;
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}
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return true;
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}
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/**
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* @inheritDoc
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*/
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public function count($visibility = null)
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{
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return count($this->search([], $visibility));
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}
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/**
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* @inheritDoc
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*/
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public function save()
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{
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if (!$this->isLoggedIn) {
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// TODO: raise an Exception instead
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die('You are not authorized to change the database.');
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}
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$this->bookmarks->reorder();
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$this->bookmarksIO->write($this->bookmarks);
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$this->pageCacheManager->invalidateCaches();
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}
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/**
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* @inheritDoc
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*/
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public function bookmarksCountPerTag($filteringTags = [], $visibility = null)
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{
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$bookmarks = $this->search(['searchtags' => $filteringTags], $visibility);
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$tags = [];
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$caseMapping = [];
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foreach ($bookmarks as $bookmark) {
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foreach ($bookmark->getTags() as $tag) {
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if (empty($tag)
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|| (! $this->isLoggedIn && startsWith($tag, '.'))
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|| $tag === BookmarkMarkdownFormatter::NO_MD_TAG
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|| in_array($tag, $filteringTags, true)
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) {
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continue;
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}
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// The first case found will be displayed.
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if (!isset($caseMapping[strtolower($tag)])) {
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$caseMapping[strtolower($tag)] = $tag;
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$tags[$caseMapping[strtolower($tag)]] = 0;
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}
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$tags[$caseMapping[strtolower($tag)]]++;
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}
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}
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/*
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* Formerly used arsort(), which doesn't define the sort behaviour for equal values.
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* Also, this function doesn't produce the same result between PHP 5.6 and 7.
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*
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* So we now use array_multisort() to sort tags by DESC occurrences,
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* then ASC alphabetically for equal values.
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*
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* @see https://github.com/shaarli/Shaarli/issues/1142
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*/
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$keys = array_keys($tags);
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$tmpTags = array_combine($keys, $keys);
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array_multisort($tags, SORT_DESC, $tmpTags, SORT_ASC, $tags);
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return $tags;
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}
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/**
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* @inheritDoc
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*/
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public function days()
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{
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$bookmarkDays = [];
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foreach ($this->search() as $bookmark) {
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$bookmarkDays[$bookmark->getCreated()->format('Ymd')] = 0;
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}
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$bookmarkDays = array_keys($bookmarkDays);
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sort($bookmarkDays);
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return $bookmarkDays;
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}
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/**
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* @inheritDoc
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*/
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public function filterDay($request)
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{
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return $this->bookmarkFilter->filter(BookmarkFilter::$FILTER_DAY, $request);
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}
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/**
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* @inheritDoc
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*/
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public function initialize()
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{
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$initializer = new BookmarkInitializer($this);
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$initializer->initialize();
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}
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/**
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* Handles migration to the new database format (BookmarksArray).
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*/
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protected function migrate()
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{
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$bookmarkDb = new LegacyLinkDB(
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$this->conf->get('resource.datastore'),
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true,
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false
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);
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$updater = new LegacyUpdater(
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UpdaterUtils::read_updates_file($this->conf->get('resource.updates')),
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$bookmarkDb,
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$this->conf,
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true
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);
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$newUpdates = $updater->update();
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if (! empty($newUpdates)) {
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UpdaterUtils::write_updates_file(
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$this->conf->get('resource.updates'),
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$updater->getDoneUpdates()
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);
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}
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}
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}
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