/**
* @return string
*/
public function getUpdateInterval()
{
/**
* @var $syndication Syndication
*/
$syndication = $this->feed->getExtension('Syndication');
return $syndication->getUpdatePeriod();
}
/**
* Constructor
*
* @param DOMDocument $dom
* @param string $type
*/
public function __construct(DOMDocument $dom, $type = null)
{
parent::__construct($dom, $type);
$atomClass = Reader\Reader::getPluginLoader()->getClassName('Atom\\Feed');
$this->_extensions['Atom\\Feed'] = new $atomClass($dom, $this->_data['type'], $this->_xpath);
$atomClass = Reader\Reader::getPluginLoader()->getClassName('DublinCore\\Feed');
$this->_extensions['DublinCore\\Feed'] = new $atomClass($dom, $this->_data['type'], $this->_xpath);
foreach ($this->_extensions as $extension) {
$extension->setXpathPrefix('/atom:feed');
}
}
/**
* Constructor
*
* @param DOMDocument $dom
* @param string $type
*/
public function __construct(\DomDocument $dom, $type = null)
{
parent::__construct($dom, $type);
$dublinCoreClass = Reader\Reader::getPluginLoader()->getClassName('DublinCore\\Feed');
$this->_extensions['DublinCore\\Feed'] = new $dublinCoreClass($dom, $this->_data['type'], $this->_xpath);
$atomClass = Reader\Reader::getPluginLoader()->getClassName('Atom\\Feed');
$this->_extensions['Atom\\Feed'] = new $atomClass($dom, $this->_data['type'], $this->_xpath);
if ($this->getType() !== Reader\Reader::TYPE_RSS_10 && $this->getType() !== Reader\Reader::TYPE_RSS_090) {
$xpathPrefix = '/rss/channel';
} else {
$xpathPrefix = '/rdf:RDF/rss:channel';
}
foreach ($this->_extensions as $extension) {
$extension->setXpathPrefix($xpathPrefix);
}
}
/**
* Constructor
*
* @param DOMDocument $dom
* @param string $type
*/
public function __construct(DOMDocument $dom, $type = null)
{
parent::__construct($dom, $type);
$manager = Reader\Reader::getExtensionManager();
$atomFeed = $manager->get('Atom\\Feed');
$atomFeed->setDomDocument($dom);
$atomFeed->setType($this->data['type']);
$atomFeed->setXpath($this->xpath);
$this->extensions['Atom\\Feed'] = $atomFeed;
$atomFeed = $manager->get('DublinCore\\Feed');
$atomFeed->setDomDocument($dom);
$atomFeed->setType($this->data['type']);
$atomFeed->setXpath($this->xpath);
$this->extensions['DublinCore\\Feed'] = $atomFeed;
foreach ($this->extensions as $extension) {
$extension->setXpathPrefix('/atom:feed');
}
}
/**
* Constructor
*
* @param DOMDocument $dom
* @param string $type
*/
public function __construct(DOMDocument $dom, $type = null)
{
parent::__construct($dom, $type);
$manager = Reader\Reader::getExtensionManager();
$feed = $manager->get('DublinCore\\Feed');
$feed->setDomDocument($dom);
$feed->setType($this->data['type']);
$feed->setXpath($this->xpath);
$this->extensions['DublinCore\\Feed'] = $feed;
$feed = $manager->get('Atom\\Feed');
$feed->setDomDocument($dom);
$feed->setType($this->data['type']);
$feed->setXpath($this->xpath);
$this->extensions['Atom\\Feed'] = $feed;
if ($this->getType() !== Reader\Reader::TYPE_RSS_10 && $this->getType() !== Reader\Reader::TYPE_RSS_090) {
$xpathPrefix = '/rss/channel';
} else {
$xpathPrefix = '/rdf:RDF/rss:channel';
}
foreach ($this->extensions as $extension) {
$extension->setXpathPrefix($xpathPrefix);
}
}
/**
* Detect the feed type of the provided feed
*
* @param Feed\AbstractFeed|DOMDocument|string $feed
* @param bool $specOnly
* @return string
* @throws Exception\InvalidArgumentException
* @throws Exception\RuntimeException
*/
public static function detectType($feed, $specOnly = false)
{
if ($feed instanceof Feed\AbstractFeed) {
$dom = $feed->getDomDocument();
} elseif ($feed instanceof DOMDocument) {
$dom = $feed;
} elseif (is_string($feed) && !empty($feed)) {
ErrorHandler::start(E_NOTICE | E_WARNING);
ini_set('track_errors', 1);
$oldValue = libxml_disable_entity_loader(true);
$dom = new DOMDocument();
$status = $dom->loadXML($feed);
foreach ($dom->childNodes as $child) {
if ($child->nodeType === XML_DOCUMENT_TYPE_NODE) {
throw new Exception\InvalidArgumentException('Invalid XML: Detected use of illegal DOCTYPE');
}
}
libxml_disable_entity_loader($oldValue);
ini_restore('track_errors');
ErrorHandler::stop();
if (!$status) {
if (!isset($phpErrormsg)) {
if (function_exists('xdebug_is_enabled')) {
$phpErrormsg = '(error message not available, when XDebug is running)';
} else {
$phpErrormsg = '(error message not available)';
}
}
throw new Exception\RuntimeException("DOMDocument cannot parse XML: {$phpErrormsg}");
}
} else {
throw new Exception\InvalidArgumentException('Invalid object/scalar provided: must' . ' be of type Zend\\Feed\\Reader\\Feed, DomDocument or string');
}
$xpath = new DOMXPath($dom);
if ($xpath->query('/rss')->length) {
$type = self::TYPE_RSS_ANY;
$version = $xpath->evaluate('string(/rss/@version)');
if (strlen($version) > 0) {
switch ($version) {
case '2.0':
$type = self::TYPE_RSS_20;
break;
case '0.94':
$type = self::TYPE_RSS_094;
break;
case '0.93':
$type = self::TYPE_RSS_093;
break;
case '0.92':
$type = self::TYPE_RSS_092;
break;
case '0.91':
$type = self::TYPE_RSS_091;
break;
}
}
return $type;
}
$xpath->registerNamespace('rdf', self::NAMESPACE_RDF);
if ($xpath->query('/rdf:RDF')->length) {
$xpath->registerNamespace('rss', self::NAMESPACE_RSS_10);
if ($xpath->query('/rdf:RDF/rss:channel')->length || $xpath->query('/rdf:RDF/rss:image')->length || $xpath->query('/rdf:RDF/rss:item')->length || $xpath->query('/rdf:RDF/rss:textinput')->length) {
return self::TYPE_RSS_10;
}
$xpath->registerNamespace('rss', self::NAMESPACE_RSS_090);
if ($xpath->query('/rdf:RDF/rss:channel')->length || $xpath->query('/rdf:RDF/rss:image')->length || $xpath->query('/rdf:RDF/rss:item')->length || $xpath->query('/rdf:RDF/rss:textinput')->length) {
return self::TYPE_RSS_090;
}
}
$xpath->registerNamespace('atom', self::NAMESPACE_ATOM_10);
if ($xpath->query('//atom:feed')->length) {
return self::TYPE_ATOM_10;
}
if ($xpath->query('//atom:entry')->length) {
if ($specOnly == true) {
return self::TYPE_ATOM_10;
} else {
return self::TYPE_ATOM_10_ENTRY;
}
}
$xpath->registerNamespace('atom', self::NAMESPACE_ATOM_03);
if ($xpath->query('//atom:feed')->length) {
return self::TYPE_ATOM_03;
}
return self::TYPE_ANY;
}
/**
* Detect the feed type of the provided feed
*
* @param Feed\AbstractFeed|DOMDocument|string $feed
* @return string
* @throws Exception\ExceptionInterface
*/
public static function detectType($feed, $specOnly = false)
{
if ($feed instanceof Feed\AbstractFeed) {
$dom = $feed->getDomDocument();
} elseif($feed instanceof DOMDocument) {
$dom = $feed;
} elseif(is_string($feed) && !empty($feed)) {
@ini_set('track_errors', 1);
$dom = new DOMDocument;
$status = @$dom->loadXML($feed);
@ini_restore('track_errors');
if (!$status) {
if (!isset($php_errormsg)) {
if (function_exists('xdebug_is_enabled')) {
$php_errormsg = '(error message not available, when XDebug is running)';
} else {
$php_errormsg = '(error message not available)';
}
}
throw new Exception\RuntimeException("DOMDocument cannot parse XML: $php_errormsg");
}
} else {
throw new Exception\InvalidArgumentException('Invalid object/scalar provided: must'
. ' be of type Zend\Feed\Reader\Feed, DomDocument or string');
}
$xpath = new DOMXPath($dom);
if ($xpath->query('/rss')->length) {
$type = self::TYPE_RSS_ANY;
$version = $xpath->evaluate('string(/rss/@version)');
if (strlen($version) > 0) {
switch($version) {
case '2.0':
$type = self::TYPE_RSS_20;
break;
case '0.94':
$type = self::TYPE_RSS_094;
break;
case '0.93':
$type = self::TYPE_RSS_093;
break;
case '0.92':
$type = self::TYPE_RSS_092;
break;
case '0.91':
$type = self::TYPE_RSS_091;
break;
}
}
return $type;
}
$xpath->registerNamespace('rdf', self::NAMESPACE_RDF);
if ($xpath->query('/rdf:RDF')->length) {
$xpath->registerNamespace('rss', self::NAMESPACE_RSS_10);
if ($xpath->query('/rdf:RDF/rss:channel')->length
|| $xpath->query('/rdf:RDF/rss:image')->length
|| $xpath->query('/rdf:RDF/rss:item')->length
|| $xpath->query('/rdf:RDF/rss:textinput')->length
) {
return self::TYPE_RSS_10;
}
$xpath->registerNamespace('rss', self::NAMESPACE_RSS_090);
if ($xpath->query('/rdf:RDF/rss:channel')->length
|| $xpath->query('/rdf:RDF/rss:image')->length
|| $xpath->query('/rdf:RDF/rss:item')->length
|| $xpath->query('/rdf:RDF/rss:textinput')->length
) {
return self::TYPE_RSS_090;
}
}
$type = self::TYPE_ATOM_ANY;
$xpath->registerNamespace('atom', self::NAMESPACE_ATOM_10);
if ($xpath->query('//atom:feed')->length) {
return self::TYPE_ATOM_10;
}
if ($xpath->query('//atom:entry')->length) {
if ($specOnly == true) {
return self::TYPE_ATOM_10;
} else {
return self::TYPE_ATOM_10_ENTRY;
}
}
$xpath->registerNamespace('atom', self::NAMESPACE_ATOM_03);
if ($xpath->query('//atom:feed')->length) {
return self::TYPE_ATOM_03;
}
return self::TYPE_ANY;
}
/**
* Import a feed by providing a Zend_Feed_Abstract object
*
* @param \Zend\Feed\Feed_Abstract $feed A fully instantiated \Zend\Feed\Feed object
* @return \Zend\Feed\Reader\FeedInterface
*/
public static function importFeed(Feed\AbstractFeed $feed)
{
$dom = $feed->getDOM()->ownerDocument;
$type = self::detectType($dom);
self::_registerCoreExtensions();
if (substr($type, 0, 3) == 'rss') {
$reader = new Feed\RSS($dom, $type);
} else {
$reader = new Feed\Atom\Atom($dom, $type);
}
return $reader;
}
