/**
* Parse the document.
*
* @return \PicoFeed\Parser\Feed
*/
public function execute()
{
Logger::setMessage(get_called_class() . ': begin parsing');
$xml = XmlParser::getSimpleXml($this->content);
if ($xml === false) {
Logger::setMessage(get_called_class() . ': Applying XML workarounds');
$this->content = Filter::normalizeData($this->content);
$xml = XmlParser::getSimpleXml($this->content);
if ($xml === false) {
Logger::setMessage(get_called_class() . ': XML parsing error');
Logger::setMessage(XmlParser::getErrors());
throw new MalformedXmlException('XML parsing error');
}
}
$this->used_namespaces = $xml->getNamespaces(true);
$xml = $this->registerSupportedNamespaces($xml);
$feed = new Feed();
$this->findFeedUrl($xml, $feed);
$this->checkFeedUrl($feed);
$this->findSiteUrl($xml, $feed);
$this->checkSiteUrl($feed);
$this->findFeedTitle($xml, $feed);
$this->findFeedDescription($xml, $feed);
$this->findFeedLanguage($xml, $feed);
$this->findFeedId($xml, $feed);
$this->findFeedDate($xml, $feed);
$this->findFeedLogo($xml, $feed);
$this->findFeedIcon($xml, $feed);
foreach ($this->getItemsTree($xml) as $entry) {
$entry = $this->registerSupportedNamespaces($entry);
$item = new Item();
$item->xml = $entry;
$item->namespaces = $this->used_namespaces;
$this->findItemAuthor($xml, $entry, $item);
$this->findItemUrl($entry, $item);
$this->checkItemUrl($feed, $item);
$this->findItemTitle($entry, $item);
$this->findItemContent($entry, $item);
// Id generation can use the item url/title/content (order is important)
$this->findItemId($entry, $item, $feed);
$this->findItemDate($entry, $item, $feed);
$this->findItemEnclosure($entry, $item, $feed);
$this->findItemLanguage($entry, $item, $feed);
$this->itemPostProcessor->execute($feed, $item);
$feed->items[] = $item;
}
Logger::setMessage(get_called_class() . PHP_EOL . $feed);
return $feed;
}
/**
* Constructor
*
* @access public
* @param string $content Feed content
* @param string $http_encoding HTTP encoding (headers)
* @param string $fallback_url Fallback url when the feed provide relative or broken url
*/
public function __construct($content, $http_encoding = '', $fallback_url = '')
{
$this->date = new DateParser();
$this->fallback_url = $fallback_url;
$xml_encoding = XmlParser::getEncodingFromXmlTag($content);
// Strip XML tag to avoid multiple encoding/decoding in the next XML processing
$this->content = Filter::stripXmlTag($content);
// Encode everything in UTF-8
Logger::setMessage(get_called_class() . ': HTTP Encoding "' . $http_encoding . '" ; XML Encoding "' . $xml_encoding . '"');
$this->content = Encoding::convert($this->content, $xml_encoding ?: $http_encoding);
// Workarounds
$this->content = Filter::normalizeData($this->content);
}
public function testNormalizeData()
{
// invalid data link escape control character
$this->assertEquals('<xml>random text</xml>', Filter::normalizeData("<xml>random text</xml>"));
$this->assertEquals('<xml>random text</xml>', Filter::normalizeData("<xml>random text</xml>"));
$this->assertEquals('<xml>random text</xml>', Filter::normalizeData("<xml>random text</xml>"));
// invalid unit seperator control character (lower and upper case)
$this->assertEquals('<xml>random text</xml>', Filter::normalizeData("<xml>random text</xml>"));
$this->assertEquals('<xml>random text</xml>', Filter::normalizeData("<xml>random text</xml>"));
$this->assertEquals('<xml>random text</xml>', Filter::normalizeData("<xml>random text</xml>"));
$this->assertEquals('<xml>random text</xml>', Filter::normalizeData("<xml>random text</xml>"));
$this->assertEquals('<xml>random text</xml>', Filter::normalizeData("<xml>random text</xml>"));
/*
* Do not test invalid multibyte characters. The output depends on php
* version and character.
*
* php 5.3: always null
* php >5.3: sometime null, sometimes the stripped string
*/
// invalid backspace control character + valid multibyte character
$this->assertEquals('<xml>“random“ text</xml>', Filter::normalizeData("<xml>“random“ text</xml>"));
$this->assertEquals('<xml>“random“ text</xml>', Filter::normalizeData("<xml>“random“ text</xml>"));
$this->assertEquals('<xml>“random“ text</xml>', Filter::normalizeData("<xml>“random“ text</xml>"));
// do not convert valid entities to utf-8 character
$this->assertEquals('<xml attribute=""value"">random text</xml>', Filter::normalizeData('<xml attribute=""value"">random text</xml>'));
$this->assertEquals('<xml attribute=""value"">random text</xml>', Filter::normalizeData('<xml attribute=""value"">random text</xml>'));
}
