306 lines
9.6 KiB
PHP
306 lines
9.6 KiB
PHP
<?php
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namespace PicoFeed\Parser;
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use SimpleXMLElement;
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use PicoFeed\Filter\Filter;
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/**
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* RSS 1.0 parser.
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*
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* @package PicoFeed\Parser
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* @author Frederic Guillot
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*/
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class Rss10 extends Parser
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{
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/**
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* Supported namespaces.
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*/
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protected $namespaces = array(
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'rss' => 'http://purl.org/rss/1.0/',
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'dc' => 'http://purl.org/dc/elements/1.1/',
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'content' => 'http://purl.org/rss/1.0/modules/content/',
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'feedburner' => 'http://rssnamespace.org/feedburner/ext/1.0',
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);
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/**
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* Get the path to the items XML tree.
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*
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* @param SimpleXMLElement $xml Feed xml
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* @return SimpleXMLElement[]
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*/
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public function getItemsTree(SimpleXMLElement $xml)
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{
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return XmlParser::getXPathResult($xml, 'rss:item', $this->namespaces)
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?: XmlParser::getXPathResult($xml, 'item')
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?: $xml->item;
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}
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/**
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* Find the feed url.
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*
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* @param SimpleXMLElement $xml Feed xml
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* @param \PicoFeed\Parser\Feed $feed Feed object
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*/
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public function findFeedUrl(SimpleXMLElement $xml, Feed $feed)
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{
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$feed->setFeedUrl('');
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}
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/**
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* Find the site url.
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*
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* @param SimpleXMLElement $xml Feed xml
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* @param \PicoFeed\Parser\Feed $feed Feed object
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*/
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public function findSiteUrl(SimpleXMLElement $xml, Feed $feed)
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{
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$value = XmlParser::getXPathResult($xml, 'rss:channel/rss:link', $this->namespaces)
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?: XmlParser::getXPathResult($xml, 'channel/link')
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?: $xml->channel->link;
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$feed->setSiteUrl(XmlParser::getValue($value));
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}
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/**
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* Find the feed description.
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*
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* @param SimpleXMLElement $xml Feed xml
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* @param \PicoFeed\Parser\Feed $feed Feed object
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*/
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public function findFeedDescription(SimpleXMLElement $xml, Feed $feed)
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{
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$description = XmlParser::getXPathResult($xml, 'rss:channel/rss:description', $this->namespaces)
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?: XmlParser::getXPathResult($xml, 'channel/description')
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?: $xml->channel->description;
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$feed->setDescription(XmlParser::getValue($description));
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}
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/**
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* Find the feed logo url.
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*
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* @param SimpleXMLElement $xml Feed xml
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* @param \PicoFeed\Parser\Feed $feed Feed object
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*/
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public function findFeedLogo(SimpleXMLElement $xml, Feed $feed)
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{
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$logo = XmlParser::getXPathResult($xml, 'rss:image/rss:url', $this->namespaces)
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?: XmlParser::getXPathResult($xml, 'image/url');
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$feed->setLogo(XmlParser::getValue($logo));
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}
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/**
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* Find the feed icon.
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*
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* @param SimpleXMLElement $xml Feed xml
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* @param \PicoFeed\Parser\Feed $feed Feed object
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*/
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public function findFeedIcon(SimpleXMLElement $xml, Feed $feed)
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{
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$feed->setIcon('');
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}
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/**
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* Find the feed title.
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*
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* @param SimpleXMLElement $xml Feed xml
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* @param \PicoFeed\Parser\Feed $feed Feed object
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*/
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public function findFeedTitle(SimpleXMLElement $xml, Feed $feed)
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{
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$title = XmlParser::getXPathResult($xml, 'rss:channel/rss:title', $this->namespaces)
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?: XmlParser::getXPathResult($xml, 'channel/title')
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?: $xml->channel->title;
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$feed->setTitle(Filter::stripWhiteSpace(XmlParser::getValue($title)) ?: $feed->getSiteUrl());
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}
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/**
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* Find the feed language.
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*
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* @param SimpleXMLElement $xml Feed xml
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* @param \PicoFeed\Parser\Feed $feed Feed object
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*/
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public function findFeedLanguage(SimpleXMLElement $xml, Feed $feed)
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{
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$language = XmlParser::getXPathResult($xml, 'rss:channel/dc:language', $this->namespaces)
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?: XmlParser::getXPathResult($xml, 'channel/dc:language', $this->namespaces);
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$feed->setLanguage(XmlParser::getValue($language));
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}
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/**
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* Find the feed id.
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*
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* @param SimpleXMLElement $xml Feed xml
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* @param \PicoFeed\Parser\Feed $feed Feed object
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*/
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public function findFeedId(SimpleXMLElement $xml, Feed $feed)
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{
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$feed->setId($feed->getFeedUrl() ?: $feed->getSiteUrl());
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}
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/**
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* Find the feed date.
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*
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* @param SimpleXMLElement $xml Feed xml
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* @param \PicoFeed\Parser\Feed $feed Feed object
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*/
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public function findFeedDate(SimpleXMLElement $xml, Feed $feed)
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{
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$date = XmlParser::getXPathResult($xml, 'rss:channel/dc:date', $this->namespaces)
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?: XmlParser::getXPathResult($xml, 'channel/dc:date', $this->namespaces);
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$feed->setDate($this->getDateParser()->getDateTime(XmlParser::getValue($date)));
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}
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/**
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* Find the item published date.
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*
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* @param SimpleXMLElement $entry Feed item
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* @param Item $item Item object
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* @param \PicoFeed\Parser\Feed $feed Feed object
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*/
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public function findItemPublishedDate(SimpleXMLElement $entry, Item $item, Feed $feed)
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{
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$date = XmlParser::getXPathResult($entry, 'dc:date', $this->namespaces);
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$item->setPublishedDate(!empty($date) ? $this->getDateParser()->getDateTime(XmlParser::getValue($date)) : null);
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}
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/**
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* Find the item updated date.
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*
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* @param SimpleXMLElement $entry Feed item
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* @param Item $item Item object
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* @param \PicoFeed\Parser\Feed $feed Feed object
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*/
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public function findItemUpdatedDate(SimpleXMLElement $entry, Item $item, Feed $feed)
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{
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if ($item->publishedDate === null) {
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$this->findItemPublishedDate($entry, $item, $feed);
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}
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$item->setUpdatedDate($item->getPublishedDate()); // No updated date in RSS 1.0 specifications
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}
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/**
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* Find the item title.
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*
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* @param SimpleXMLElement $entry Feed item
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* @param \PicoFeed\Parser\Item $item Item object
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*/
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public function findItemTitle(SimpleXMLElement $entry, Item $item)
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{
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$title = XmlParser::getXPathResult($entry, 'rss:title', $this->namespaces)
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?: XmlParser::getXPathResult($entry, 'title')
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?: $entry->title;
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$item->setTitle(Filter::stripWhiteSpace(XmlParser::getValue($title)) ?: $item->getUrl());
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}
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/**
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* Find the item author.
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*
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* @param SimpleXMLElement $xml Feed
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* @param SimpleXMLElement $entry Feed item
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* @param \PicoFeed\Parser\Item $item Item object
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*/
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public function findItemAuthor(SimpleXMLElement $xml, SimpleXMLElement $entry, Item $item)
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{
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$author = XmlParser::getXPathResult($entry, 'dc:creator', $this->namespaces)
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?: XmlParser::getXPathResult($xml, 'rss:channel/dc:creator', $this->namespaces)
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?: XmlParser::getXPathResult($xml, 'channel/dc:creator', $this->namespaces);
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$item->setAuthor(XmlParser::getValue($author));
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}
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/**
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* Find the item content.
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*
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* @param SimpleXMLElement $entry Feed item
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* @param \PicoFeed\Parser\Item $item Item object
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*/
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public function findItemContent(SimpleXMLElement $entry, Item $item)
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{
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$content = XmlParser::getXPathResult($entry, 'content:encoded', $this->namespaces);
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if (XmlParser::getValue($content) === '') {
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$content = XmlParser::getXPathResult($entry, 'rss:description', $this->namespaces)
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?: XmlParser::getXPathResult($entry, 'description')
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?: $entry->description;
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}
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$item->setContent(XmlParser::getValue($content));
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}
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/**
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* Find the item URL.
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*
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* @param SimpleXMLElement $entry Feed item
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* @param \PicoFeed\Parser\Item $item Item object
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*/
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public function findItemUrl(SimpleXMLElement $entry, Item $item)
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{
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$link = XmlParser::getXPathResult($entry, 'feedburner:origLink', $this->namespaces)
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?: XmlParser::getXPathResult($entry, 'rss:link', $this->namespaces)
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?: XmlParser::getXPathResult($entry, 'link')
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?: $entry->link;
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$item->setUrl(XmlParser::getValue($link));
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}
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/**
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* Genereate the item id.
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*
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* @param SimpleXMLElement $entry Feed item
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* @param \PicoFeed\Parser\Item $item Item object
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* @param \PicoFeed\Parser\Feed $feed Feed object
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*/
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public function findItemId(SimpleXMLElement $entry, Item $item, Feed $feed)
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{
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$item->setId($this->generateId(
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$item->getTitle(), $item->getUrl(), $item->getContent()
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));
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}
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/**
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* Find the item enclosure.
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*
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* @param SimpleXMLElement $entry Feed item
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* @param \PicoFeed\Parser\Item $item Item object
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* @param \PicoFeed\Parser\Feed $feed Feed object
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*/
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public function findItemEnclosure(SimpleXMLElement $entry, Item $item, Feed $feed)
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{
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}
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/**
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* Find the item language.
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*
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* @param SimpleXMLElement $entry Feed item
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* @param \PicoFeed\Parser\Item $item Item object
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* @param \PicoFeed\Parser\Feed $feed Feed object
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*/
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public function findItemLanguage(SimpleXMLElement $entry, Item $item, Feed $feed)
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{
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$language = XmlParser::getXPathResult($entry, 'dc:language', $this->namespaces);
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$item->setLanguage(XmlParser::getValue($language) ?: $feed->getLanguage());
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}
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/**
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* Find the item categories.
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*
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* @param SimpleXMLElement $entry Feed item
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* @param Item $item Item object
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* @param Feed $feed Feed object
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*/
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public function findItemCategories(SimpleXMLElement $entry, Item $item, Feed $feed)
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{
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$categories = XmlParser::getXPathResult($entry, 'dc:subject', $this->namespaces);
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$item->setCategoriesFromXml($categories);
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}
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}
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