Create a FeedBuilder class which build data for both ATOM and RSS feed.
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commit
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3 changed files with 337 additions and 239 deletions
295
application/FeedBuilder.php
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295
application/FeedBuilder.php
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@ -0,0 +1,295 @@
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<?php
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/**
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* FeedBuilder class.
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*
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* Used to build ATOM and RSS feeds data.
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*/
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class FeedBuilder
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{
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/**
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* @var string Constant: RSS feed type.
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*/
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public static $FEED_RSS = 'rss';
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/**
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* @var string Constant: ATOM feed type.
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*/
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public static $FEED_ATOM = 'atom';
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/**
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* @var string Default language if the locale isn't set.
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*/
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public static $DEFAULT_LANGUAGE = 'en-en';
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/**
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* @var int Number of links to display in a feed by default.
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*/
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public static $DEFAULT_NB_LINKS = 50;
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/**
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* @var LinkDB instance.
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*/
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protected $linkDB;
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/**
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* @var string RSS or ATOM feed.
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*/
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protected $feedType;
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/**
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* @var array $_SERVER.
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*/
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protected $serverInfo;
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/**
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* @var array $_GET.
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*/
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protected $userInput;
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/**
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* @var boolean True if the user is currently logged in, false otherwise.
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*/
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protected $isLoggedIn;
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/**
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* @var boolean Use permalinks instead of direct links if true.
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*/
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protected $usePermalinks;
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/**
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* @var boolean true to hide dates in feeds.
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*/
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protected $hideDates;
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/**
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* @var string PubSub hub URL.
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*/
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protected $pubsubhubUrl;
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/**
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* @var string server locale.
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*/
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protected $locale;
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/**
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* @var DateTime Latest item date.
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*/
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protected $latestDate;
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/**
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* Feed constructor.
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*
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* @param LinkDB $linkDB LinkDB instance.
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* @param string $feedType Type of feed.
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* @param array $serverInfo $_SERVER.
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* @param array $userInput $_GET.
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* @param boolean $isLoggedIn True if the user is currently logged in, false otherwise.
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*/
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public function __construct($linkDB, $feedType, $serverInfo, $userInput, $isLoggedIn)
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{
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$this->linkDB = $linkDB;
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$this->feedType = $feedType;
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$this->serverInfo = $serverInfo;
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$this->userInput = $userInput;
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$this->isLoggedIn = $isLoggedIn;
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}
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/**
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* Build data for feed templates.
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*
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* @return array Formatted data for feeds templates.
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*/
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public function buildData()
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{
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// Optionally filter the results:
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$searchtags = !empty($this->userInput['searchtags']) ? escape($this->userInput['searchtags']) : '';
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$searchterm = !empty($this->userInput['searchterm']) ? escape($this->userInput['searchterm']) : '';
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if (! empty($searchtags) && ! empty($searchterm)) {
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$linksToDisplay = $this->linkDB->filter(
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LinkFilter::$FILTER_TAG | LinkFilter::$FILTER_TEXT,
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array($searchtags, $searchterm)
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);
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}
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elseif ($searchtags) {
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$linksToDisplay = $this->linkDB->filter(LinkFilter::$FILTER_TAG, $searchtags);
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}
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elseif ($searchterm) {
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$linksToDisplay = $this->linkDB->filter(LinkFilter::$FILTER_TEXT, $searchterm);
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}
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else {
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$linksToDisplay = $this->linkDB;
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}
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$nblinksToDisplay = $this->getNbLinks(count($linksToDisplay));
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// Can't use array_keys() because $link is a LinkDB instance and not a real array.
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$keys = array();
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foreach ($linksToDisplay as $key => $value) {
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$keys[] = $key;
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}
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$pageaddr = escape(index_url($this->serverInfo));
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$linkDisplayed = array();
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for ($i = 0; $i < $nblinksToDisplay && $i < count($keys); $i++) {
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$linkDisplayed[$keys[$i]] = $this->buildItem($linksToDisplay[$keys[$i]], $pageaddr);
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}
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$data['language'] = $this->getTypeLanguage();
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$data['pubsubhub_url'] = $this->pubsubhubUrl;
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$data['last_update'] = $this->getLatestDateFormatted();
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$data['show_dates'] = !$this->hideDates || $this->isLoggedIn;
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// Remove leading slash from REQUEST_URI.
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$data['self_link'] = $pageaddr . escape(ltrim($this->serverInfo['REQUEST_URI'], '/'));
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$data['index_url'] = $pageaddr;
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$data['usepermalinks'] = $this->usePermalinks === true;
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$data['links'] = $linkDisplayed;
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return $data;
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}
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/**
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* Build a feed item (one per shaare).
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*
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* @param array $link Single link array extracted from LinkDB.
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* @param string $pageaddr Index URL.
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*
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* @return array Link array with feed attributes.
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*/
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protected function buildItem($link, $pageaddr)
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{
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$link['guid'] = $pageaddr .'?'. smallHash($link['linkdate']);
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// Check for both signs of a note: starting with ? and 7 chars long.
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if ($link['url'][0] === '?' && strlen($link['url']) === 7) {
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$link['url'] = $pageaddr . $link['url'];
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}
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if ($this->usePermalinks === true) {
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$permalink = '<a href="'. $link['url'] .'" title="Direct link">Direct link</a>';
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} else {
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$permalink = '<a href="'. $link['guid'] .'" title="Permalink">Permalink</a>';
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}
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$link['description'] = format_description($link['description']) . PHP_EOL .'<br>— '. $permalink;
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$date = DateTime::createFromFormat(LinkDB::LINK_DATE_FORMAT, $link['linkdate']);
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if ($this->feedType == self::$FEED_RSS) {
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$link['iso_date'] = $date->format(DateTime::RSS);
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} else {
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$link['iso_date'] = $date->format(DateTime::ATOM);
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}
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// Save the more recent item.
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if (empty($this->latestDate) || $this->latestDate < $date) {
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$this->latestDate = $date;
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}
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$taglist = array_filter(explode(' ', $link['tags']), 'strlen');
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uasort($taglist, 'strcasecmp');
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$link['taglist'] = $taglist;
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return $link;
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}
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/**
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* Assign PubSub hub URL.
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*
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* @param string $pubsubhubUrl PubSub hub url.
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*/
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public function setPubsubhubUrl($pubsubhubUrl)
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{
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$this->pubsubhubUrl = $pubsubhubUrl;
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}
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/**
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* Set this to true to use permalinks instead of direct links.
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*
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* @param boolean $usePermalinks true to force permalinks.
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*/
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public function setUsePermalinks($usePermalinks)
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{
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$this->usePermalinks = $usePermalinks;
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}
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/**
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* Set this to true to hide timestamps in feeds.
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*
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* @param boolean $hideDates true to enable.
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*/
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public function setHideDates($hideDates)
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{
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$this->hideDates = $hideDates;
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}
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/**
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* Set the locale. Used to show feed language.
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*
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* @param string $locale The locale (eg. 'fr_FR.UTF8').
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*/
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public function setLocale($locale)
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{
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$this->locale = strtolower($locale);
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}
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/**
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* Get the language according to the feed type, based on the locale:
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*
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* - RSS format: en-us (default: 'en-en').
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* - ATOM format: fr (default: 'en').
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*
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* @return string The language.
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*/
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public function getTypeLanguage()
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{
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// Use the locale do define the language, if available.
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if (! empty($this->locale) && preg_match('/^\w{2}[_\-]\w{2}/', $this->locale)) {
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$length = ($this->feedType == self::$FEED_RSS) ? 5 : 2;
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return str_replace('_', '-', substr($this->locale, 0, $length));
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}
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return ($this->feedType == self::$FEED_RSS) ? 'en-en' : 'en';
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}
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/**
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* Format the latest item date found according to the feed type.
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*
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* Return an empty string if invalid DateTime is passed.
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*
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* @return string Formatted date.
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*/
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protected function getLatestDateFormatted()
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{
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if (empty($this->latestDate) || !$this->latestDate instanceof DateTime) {
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return '';
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}
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$type = ($this->feedType == self::$FEED_RSS) ? DateTime::RSS : DateTime::ATOM;
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return $this->latestDate->format($type);
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}
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/**
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* Returns the number of link to display according to 'nb' user input parameter.
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*
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* If 'nb' not set or invalid, default value: $DEFAULT_NB_LINKS.
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* If 'nb' is set to 'all', display all filtered links (max parameter).
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*
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* @param int $max maximum number of links to display.
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*
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* @return int number of links to display.
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*/
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public function getNbLinks($max)
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{
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if (empty($this->userInput['nb'])) {
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return self::$DEFAULT_NB_LINKS;
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}
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if ($this->userInput['nb'] == 'all') {
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return $max;
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}
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$intNb = intval($this->userInput['nb']);
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if (! is_int($intNb) || $intNb == 0) {
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return self::$DEFAULT_NB_LINKS;
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}
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return $intNb;
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}
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}
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* @param array $get $_SERVER['GET'].
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* @param bool $loggedIn true if authenticated user.
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*
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* @return self::page found.
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* @return string page found.
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*/
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public static function findPage($query, $get, $loggedIn)
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{
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279
index.php
279
index.php
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@ -154,6 +154,7 @@ if (is_file($GLOBALS['config']['CONFIG_FILE'])) {
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require_once 'application/ApplicationUtils.php';
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require_once 'application/Cache.php';
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require_once 'application/CachedPage.php';
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require_once 'application/FeedBuilder.php';
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require_once 'application/FileUtils.php';
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require_once 'application/HttpUtils.php';
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require_once 'application/LinkDB.php';
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@ -681,237 +682,6 @@ class pageBuilder
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}
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}
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// ------------------------------------------------------------------------------------------
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// Output the last N links in RSS 2.0 format.
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function showRSS($pageBuilder, $linkDB)
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{
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header('Content-Type: application/rss+xml; charset=utf-8');
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// $usepermalink : If true, use permalink instead of final link.
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// User just has to add 'permalink' in URL parameters. e.g. http://mysite.com/shaarli/?do=rss&permalinks
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// Also enabled through a config option
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$usepermalinks = isset($_GET['permalinks']) || !$GLOBALS['config']['ENABLE_RSS_PERMALINKS'];
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// Cache system
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$query = $_SERVER['QUERY_STRING'];
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$cache = new CachedPage(
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$GLOBALS['config']['PAGECACHE'],
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page_url($_SERVER),
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startsWith($query, 'do=rss') && !isLoggedIn()
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);
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$cached = $cache->cachedVersion();
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if (! empty($cached)) {
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echo $cached;
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exit;
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}
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// Optionally filter the results:
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$searchtags = !empty($_GET['searchtags']) ? escape($_GET['searchtags']) : '';
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$searchterm = !empty($_GET['searchterm']) ? escape($_GET['searchterm']) : '';
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if (! empty($searchtags) && ! empty($searchterm)) {
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$linksToDisplay = $linkDB->filter(
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LinkFilter::$FILTER_TAG | LinkFilter::$FILTER_TEXT,
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array($searchtags, $searchterm)
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);
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}
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elseif ($searchtags) {
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$linksToDisplay = $linkDB->filter(LinkFilter::$FILTER_TAG, $searchtags);
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}
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elseif ($searchterm) {
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$linksToDisplay = $linkDB->filter(LinkFilter::$FILTER_TEXT, $searchterm);
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}
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else {
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$linksToDisplay = $linkDB;
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}
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$nblinksToDisplay = 50; // Number of links to display.
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// In URL, you can specificy the number of links. Example: nb=200 or nb=all for all links.
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if (!empty($_GET['nb'])) {
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$nblinksToDisplay = $_GET['nb'] == 'all' ? count($linksToDisplay) : max(intval($_GET['nb']), 1);
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}
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$keys = array();
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foreach ($linksToDisplay as $key=>$value) {
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$keys[] = $key; // No, I can't use array_keys().
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}
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$pageaddr = escape(index_url($_SERVER));
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$latestDate = '';
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$i = 0;
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$linkDisp = array();
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while ($i < $nblinksToDisplay && $i < count($keys))
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{
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$link = $linksToDisplay[$keys[$i]];
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$link['guid'] = $pageaddr. '?' .smallHash($link['linkdate']);
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// Check for both signs of a note: starting with ? and 7 chars long.
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if ($link['url'][0] === '?' && strlen($link['url']) === 7) {
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$link['url'] = $pageaddr . $link['url'];
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}
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if ($usepermalinks) {
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$permalink = '<a href="'. $link['url'] .'" title="Direct link">Direct link</a>';
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} else {
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$permalink = '<a href="'. $link['guid'] .'" title="Permalink">Permalink</a>';
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}
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$link['description'] = format_description($link['description']) . PHP_EOL .'<br>— '. $permalink;
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$date = DateTime::createFromFormat(LinkDB::LINK_DATE_FORMAT, $link['linkdate']);
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$link['iso_date'] = $date->format(DateTime::RSS);
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$latestDate = max($latestDate, $link['iso_date']);
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$taglist = array_filter(explode(' ', $link['tags']), 'strlen');
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uasort($taglist, 'strcasecmp');
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$link['taglist'] = $taglist;
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$linkDisp[$keys[$i]] = $link;
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$i++;
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}
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$data = array();
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if (!empty($GLOBALS['config']['PUBSUBHUB_URL'])) {
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$data['pubsubhub_url'] = escape($GLOBALS['config']['PUBSUBHUB_URL']);
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}
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// Use the locale do define the language, if available.
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$locale = strtolower(setlocale(LC_COLLATE, 0));
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if (! empty($locale) && preg_match('/^\w{2}[_\-]\w{2}/', $locale)) {
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$data['language'] = str_replace('_', '-', substr($locale, 0, 5));
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} else {
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$data['language'] = 'en-en';
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}
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$data['last_update'] = escape($latestDate);
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$data['show_dates'] = !$GLOBALS['config']['HIDE_TIMESTAMPS'] || isLoggedIn();
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// Remove starting slash from REQUEST_URI.
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$data['self_link'] = escape($pageaddr . substr($_SERVER['REQUEST_URI'], 1));
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$data['index_url'] = escape($pageaddr);
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$data['usepermalinks'] = $usepermalinks;
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$data['links'] = $linkDisp;
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$pluginManager = PluginManager::getInstance();
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$pluginManager->executeHooks('render_feed', $data, array(
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'loggedin' => isLoggedIn(),
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'target' => Router::$PAGE_RSS,
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));
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$pageBuilder->assignAll($data);
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$pageBuilder->renderPage('feed.rss', false);
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$cache->cache(ob_get_contents());
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ob_end_flush();
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exit;
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}
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// ------------------------------------------------------------------------------------------
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// Output the last N links in ATOM format.
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function showATOM($pageBuilder, $linkDB)
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{
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header('Content-Type: application/atom+xml; charset=utf-8');
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// Cache system
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$query = $_SERVER["QUERY_STRING"];
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$cache = new CachedPage(
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$GLOBALS['config']['PAGECACHE'],
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page_url($_SERVER),
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startsWith($query,'do=atom') && !isLoggedIn()
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);
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$cached = $cache->cachedVersion();
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if (!empty($cached)) {
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echo $cached;
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exit;
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}
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// $usepermalink : If true, use permalink instead of final link.
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// User just has to add 'permalink' in URL parameters. e.g. http://mysite.com/shaarli/?do=atom&permalinks
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$usepermalinks = isset($_GET['permalinks']) || !$GLOBALS['config']['ENABLE_RSS_PERMALINKS'];
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// Optionally filter the results:
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$searchtags = !empty($_GET['searchtags']) ? escape($_GET['searchtags']) : '';
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$searchterm = !empty($_GET['searchterm']) ? escape($_GET['searchterm']) : '';
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if (! empty($searchtags) && ! empty($searchterm)) {
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$linksToDisplay = $linkDB->filter(
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LinkFilter::$FILTER_TAG | LinkFilter::$FILTER_TEXT,
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array($searchtags, $searchterm)
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);
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}
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elseif ($searchtags) {
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$linksToDisplay = $linkDB->filter(LinkFilter::$FILTER_TAG, $searchtags);
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}
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elseif ($searchterm) {
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$linksToDisplay = $linkDB->filter(LinkFilter::$FILTER_TEXT, $searchterm);
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}
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else {
|
||||
$linksToDisplay = $linkDB;
|
||||
}
|
||||
|
||||
$nblinksToDisplay = 50; // Number of links to display.
|
||||
// In URL, you can specificy the number of links. Example: nb=200 or nb=all for all links.
|
||||
if (!empty($_GET['nb'])) {
|
||||
$nblinksToDisplay = $_GET['nb'] == 'all' ? count($linksToDisplay) : max(intval($_GET['nb']), 1);
|
||||
}
|
||||
|
||||
$keys = array();
|
||||
foreach ($linksToDisplay as $key=>$value) {
|
||||
$keys[] = $key; // No, I can't use array_keys().
|
||||
}
|
||||
|
||||
$pageaddr = escape(index_url($_SERVER));
|
||||
$latestDate = '';
|
||||
$i = 0;
|
||||
$linkDisp = array();
|
||||
while ($i < $nblinksToDisplay && $i < count($keys))
|
||||
{
|
||||
$link = $linksToDisplay[$keys[$i]];
|
||||
$link['guid'] = $pageaddr. '?' .smallHash($link['linkdate']);
|
||||
// Check for both signs of a note: starting with ? and 7 chars long.
|
||||
if ($link['url'][0] === '?' && strlen($link['url']) === 7) {
|
||||
$link['url'] = $pageaddr . $link['url'];
|
||||
}
|
||||
if ($usepermalinks) {
|
||||
$permalink = '<a href="'. $link['url'] .'" title="Direct link">Direct link</a>';
|
||||
} else {
|
||||
$permalink = '<a href="'. $link['guid'] .'" title="Permalink">Permalink</a>';
|
||||
}
|
||||
$link['description'] = format_description($link['description']) . PHP_EOL .'<br>— '. $permalink;
|
||||
|
||||
$date = DateTime::createFromFormat(LinkDB::LINK_DATE_FORMAT, $link['linkdate']);
|
||||
$link['iso_date'] = $date->format(DateTime::ATOM);
|
||||
$latestDate = max($latestDate, $link['iso_date']);
|
||||
$taglist = array_filter(explode(' ', $link['tags']), 'strlen');
|
||||
uasort($taglist, 'strcasecmp');
|
||||
$link['taglist'] = $taglist;
|
||||
|
||||
$linkDisp[$keys[$i]] = $link;
|
||||
$i++;
|
||||
}
|
||||
|
||||
$data = array();
|
||||
if (!empty($GLOBALS['config']['PUBSUBHUB_URL'])) {
|
||||
$data['pubsubhub_url'] = escape($GLOBALS['config']['PUBSUBHUB_URL']);
|
||||
}
|
||||
// Use the locale do define the language, if available.
|
||||
$locale = strtolower(setlocale(LC_COLLATE, 0));
|
||||
if (! empty($locale) && preg_match('/^\w{2}[_\-]\w{2}/', $locale)) {
|
||||
$data['language'] = substr($locale, 0, 2);
|
||||
} else {
|
||||
$data['language'] = 'en';
|
||||
}
|
||||
$data['last_update'] = escape($latestDate);
|
||||
$data['show_dates'] = !$GLOBALS['config']['HIDE_TIMESTAMPS'] || isLoggedIn();
|
||||
$data['self_link'] = escape($pageaddr . $_SERVER['REQUEST_URI']);
|
||||
$data['index_url'] = escape($pageaddr);
|
||||
$data['usepermalinks'] = $usepermalinks;
|
||||
$data['links'] = $linkDisp;
|
||||
|
||||
$pluginManager = PluginManager::getInstance();
|
||||
$pluginManager->executeHooks('render_feed', $data, array(
|
||||
'loggedin' => isLoggedIn(),
|
||||
'target' => Router::$PAGE_ATOM,
|
||||
));
|
||||
|
||||
$pageBuilder->assignAll($data);
|
||||
$pageBuilder->renderPage('feed.atom', false);
|
||||
$cache->cache(ob_get_contents());
|
||||
ob_end_flush();
|
||||
exit;
|
||||
}
|
||||
|
||||
// ------------------------------------------------------------------------------------------
|
||||
// Daily RSS feed: 1 RSS entry per day giving all the links on that day.
|
||||
// Gives the last 7 days (which have links).
|
||||
|
@ -1288,14 +1058,47 @@ function renderPage()
|
|||
showDaily($PAGE);
|
||||
}
|
||||
|
||||
// ATOM feed.
|
||||
if ($targetPage == Router::$PAGE_ATOM) {
|
||||
showATOM($PAGE, $LINKSDB);
|
||||
}
|
||||
// ATOM and RSS feed.
|
||||
if ($targetPage == Router::$PAGE_FEED_ATOM || $targetPage == Router::$PAGE_FEED_RSS) {
|
||||
$feedType = $targetPage == Router::$PAGE_FEED_RSS ? FeedBuilder::$FEED_RSS : FeedBuilder::$FEED_ATOM;
|
||||
header('Content-Type: application/'. $feedType .'+xml; charset=utf-8');
|
||||
|
||||
// RSS feed.
|
||||
if ($targetPage == Router::$PAGE_RSS) {
|
||||
showRSS($PAGE, $LINKSDB);
|
||||
// Cache system
|
||||
$query = $_SERVER['QUERY_STRING'];
|
||||
$cache = new CachedPage(
|
||||
$GLOBALS['config']['PAGECACHE'],
|
||||
page_url($_SERVER),
|
||||
startsWith($query,'do='. $targetPage) && !isLoggedIn()
|
||||
);
|
||||
$cached = $cache->cachedVersion();
|
||||
if (!empty($cached)) {
|
||||
echo $cached;
|
||||
exit;
|
||||
}
|
||||
|
||||
// Generate data.
|
||||
$feedGenerator = new FeedBuilder($LINKSDB, $feedType, $_SERVER, $_GET, isLoggedIn());
|
||||
$feedGenerator->setLocale(strtolower(setlocale(LC_COLLATE, 0)));
|
||||
$feedGenerator->setHideDates($GLOBALS['config']['HIDE_TIMESTAMPS'] && !isLoggedIn());
|
||||
$feedGenerator->setUsePermalinks(isset($_GET['permalinks']) || !$GLOBALS['config']['ENABLE_RSS_PERMALINKS']);
|
||||
if (!empty($GLOBALS['config']['PUBSUBHUB_URL'])) {
|
||||
$feedGenerator->setPubsubhubUrl($GLOBALS['config']['PUBSUBHUB_URL']);
|
||||
}
|
||||
$data = $feedGenerator->buildData();
|
||||
|
||||
// Process plugin hook.
|
||||
$pluginManager = PluginManager::getInstance();
|
||||
$pluginManager->executeHooks('render_feed', $data, array(
|
||||
'loggedin' => isLoggedIn(),
|
||||
'target' => $targetPage,
|
||||
));
|
||||
|
||||
// Render the template.
|
||||
$PAGE->assignAll($data);
|
||||
$PAGE->renderPage('feed.'. $feedType);
|
||||
$cache->cache(ob_get_contents());
|
||||
ob_end_flush();
|
||||
exit;
|
||||
}
|
||||
|
||||
// Display openseach plugin (XML)
|
||||
|
|
Loading…
Reference in a new issue