diff options
Diffstat (limited to '3rdparty/ZendFeed/Reader/Reader.php')
| -rw-r--r-- | 3rdparty/ZendFeed/Reader/Reader.php | 678 |
1 files changed, 0 insertions, 678 deletions
diff --git a/3rdparty/ZendFeed/Reader/Reader.php b/3rdparty/ZendFeed/Reader/Reader.php deleted file mode 100644 index bcd387ad2..000000000 --- a/3rdparty/ZendFeed/Reader/Reader.php +++ /dev/null @@ -1,678 +0,0 @@ -<?php -/** - * Zend Framework (http://framework.zend.com/) - * - * @link http://github.com/zendframework/zf2 for the canonical source repository - * @copyright Copyright (c) 2005-2014 Zend Technologies USA Inc. (http://www.zend.com) - * @license http://framework.zend.com/license/new-bsd New BSD License - */ - -namespace Zend\Feed\Reader; - -use DOMDocument; -use DOMXPath; -use Zend\Cache\Storage\StorageInterface as CacheStorage; -use Zend\Http as ZendHttp; -use Zend\Stdlib\ErrorHandler; - -/** -*/ -class Reader -{ - /** - * Namespace constants - */ - const NAMESPACE_ATOM_03 = 'http://purl.org/atom/ns#'; - const NAMESPACE_ATOM_10 = 'http://www.w3.org/2005/Atom'; - const NAMESPACE_RDF = 'http://www.w3.org/1999/02/22-rdf-syntax-ns#'; - const NAMESPACE_RSS_090 = 'http://my.netscape.com/rdf/simple/0.9/'; - const NAMESPACE_RSS_10 = 'http://purl.org/rss/1.0/'; - - /** - * Feed type constants - */ - const TYPE_ANY = 'any'; - const TYPE_ATOM_03 = 'atom-03'; - const TYPE_ATOM_10 = 'atom-10'; - const TYPE_ATOM_10_ENTRY = 'atom-10-entry'; - const TYPE_ATOM_ANY = 'atom'; - const TYPE_RSS_090 = 'rss-090'; - const TYPE_RSS_091 = 'rss-091'; - const TYPE_RSS_091_NETSCAPE = 'rss-091n'; - const TYPE_RSS_091_USERLAND = 'rss-091u'; - const TYPE_RSS_092 = 'rss-092'; - const TYPE_RSS_093 = 'rss-093'; - const TYPE_RSS_094 = 'rss-094'; - const TYPE_RSS_10 = 'rss-10'; - const TYPE_RSS_20 = 'rss-20'; - const TYPE_RSS_ANY = 'rss'; - - /** - * Cache instance - * - * @var CacheStorage - */ - protected static $cache = null; - - /** - * HTTP client object to use for retrieving feeds - * - * @var ZendHttp\Client - */ - protected static $httpClient = null; - - /** - * Override HTTP PUT and DELETE request methods? - * - * @var bool - */ - protected static $httpMethodOverride = false; - - protected static $httpConditionalGet = false; - - protected static $extensionManager = null; - - protected static $extensions = array( - 'feed' => array( - 'DublinCore\Feed', - 'Atom\Feed' - ), - 'entry' => array( - 'Content\Entry', - 'DublinCore\Entry', - 'Atom\Entry' - ), - 'core' => array( - 'DublinCore\Feed', - 'Atom\Feed', - 'Content\Entry', - 'DublinCore\Entry', - 'Atom\Entry' - ) - ); - - /** - * Get the Feed cache - * - * @return CacheStorage - */ - public static function getCache() - { - return static::$cache; - } - - /** - * Set the feed cache - * - * @param CacheStorage $cache - * @return void - */ - public static function setCache(CacheStorage $cache) - { - static::$cache = $cache; - } - - /** - * Set the HTTP client instance - * - * Sets the HTTP client object to use for retrieving the feeds. - * - * @param ZendHttp\Client $httpClient - * @return void - */ - public static function setHttpClient(ZendHttp\Client $httpClient) - { - static::$httpClient = $httpClient; - } - - - /** - * Gets the HTTP client object. If none is set, a new ZendHttp\Client will be used. - * - * @return ZendHttp\Client - */ - public static function getHttpClient() - { - if (!static::$httpClient instanceof ZendHttp\Client) { - static::$httpClient = new ZendHttp\Client(); - } - - return static::$httpClient; - } - - /** - * Toggle using POST instead of PUT and DELETE HTTP methods - * - * Some feed implementations do not accept PUT and DELETE HTTP - * methods, or they can't be used because of proxies or other - * measures. This allows turning on using POST where PUT and - * DELETE would normally be used; in addition, an - * X-Method-Override header will be sent with a value of PUT or - * DELETE as appropriate. - * - * @param bool $override Whether to override PUT and DELETE. - * @return void - */ - public static function setHttpMethodOverride($override = true) - { - static::$httpMethodOverride = $override; - } - - /** - * Get the HTTP override state - * - * @return bool - */ - public static function getHttpMethodOverride() - { - return static::$httpMethodOverride; - } - - /** - * Set the flag indicating whether or not to use HTTP conditional GET - * - * @param bool $bool - * @return void - */ - public static function useHttpConditionalGet($bool = true) - { - static::$httpConditionalGet = $bool; - } - - /** - * Import a feed by providing a URI - * - * @param string $uri The URI to the feed - * @param string $etag OPTIONAL Last received ETag for this resource - * @param string $lastModified OPTIONAL Last-Modified value for this resource - * @return Feed\FeedInterface - * @throws Exception\RuntimeException - */ - public static function import($uri, $etag = null, $lastModified = null) - { - $cache = self::getCache(); - $feed = null; - $client = self::getHttpClient(); - $client->resetParameters(); - $headers = new ZendHttp\Headers(); - $client->setHeaders($headers); - $client->setUri($uri); - $cacheId = 'Zend_Feed_Reader_' . md5($uri); - - if (static::$httpConditionalGet && $cache) { - $data = $cache->getItem($cacheId); - if ($data) { - if ($etag === null) { - $etag = $cache->getItem($cacheId . '_etag'); - } - if ($lastModified === null) { - $lastModified = $cache->getItem($cacheId . '_lastmodified'); - } - if ($etag) { - $headers->addHeaderLine('If-None-Match', $etag); - } - if ($lastModified) { - $headers->addHeaderLine('If-Modified-Since', $lastModified); - } - } - $response = $client->send(); - if ($response->getStatusCode() !== 200 && $response->getStatusCode() !== 304) { - throw new Exception\RuntimeException('Feed failed to load, got response code ' . $response->getStatusCode()); - } - if ($response->getStatusCode() == 304) { - $responseXml = $data; - } else { - $responseXml = $response->getBody(); - $cache->setItem($cacheId, $responseXml); - if ($response->getHeaders()->get('ETag')) { - $cache->setItem($cacheId . '_etag', $response->getHeaders()->get('ETag')->getFieldValue()); - } - if ($response->getHeaders()->get('Last-Modified')) { - $cache->setItem($cacheId . '_lastmodified', $response->getHeaders()->get('Last-Modified')->getFieldValue()); - } - } - return static::importString($responseXml); - } elseif ($cache) { - $data = $cache->getItem($cacheId); - if ($data) { - return static::importString($data); - } - $response = $client->send(); - if ((int) $response->getStatusCode() !== 200) { - throw new Exception\RuntimeException('Feed failed to load, got response code ' . $response->getStatusCode()); - } - $responseXml = $response->getBody(); - $cache->setItem($cacheId, $responseXml); - return static::importString($responseXml); - } else { - $response = $client->send(); - if ((int) $response->getStatusCode() !== 200) { - throw new Exception\RuntimeException('Feed failed to load, got response code ' . $response->getStatusCode()); - } - $reader = static::importString($response->getBody()); - $reader->setOriginalSourceUri($uri); - return $reader; - } - } - - /** - * Import a feed from a remote URI - * - * Performs similarly to import(), except it uses the HTTP client passed to - * the method, and does not take into account cached data. - * - * Primary purpose is to make it possible to use the Reader with alternate - * HTTP client implementations. - * - * @param string $uri - * @param Http\ClientInterface $client - * @return self - * @throws Exception\RuntimeException if response is not an Http\ResponseInterface - */ - public static function importRemoteFeed($uri, Http\ClientInterface $client) - { - $response = $client->get($uri); - if (!$response instanceof Http\ResponseInterface) { - throw new Exception\RuntimeException(sprintf( - 'Did not receive a %s\Http\ResponseInterface from the provided HTTP client; received "%s"', - __NAMESPACE__, - (is_object($response) ? get_class($response) : gettype($response)) - )); - } - - if ((int) $response->getStatusCode() !== 200) { - throw new Exception\RuntimeException('Feed failed to load, got response code ' . $response->getStatusCode()); - } - $reader = static::importString($response->getBody()); - $reader->setOriginalSourceUri($uri); - return $reader; - } - - /** - * Import a feed from a string - * - * @param string $string - * @return Feed\FeedInterface - * @throws Exception\InvalidArgumentException - * @throws Exception\RuntimeException - */ - public static function importString($string) - { - $trimmed = trim($string); - if (!is_string($string) || empty($trimmed)) { - throw new Exception\InvalidArgumentException('Only non empty strings are allowed as input'); - } - - $libxmlErrflag = libxml_use_internal_errors(true); - $oldValue = libxml_disable_entity_loader(true); - $dom = new DOMDocument; - $status = $dom->loadXML(trim($string)); - 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($oldValue); - libxml_use_internal_errors($libxmlErrflag); - - if (!$status) { - // Build error message - $error = libxml_get_last_error(); - if ($error && $error->message) { - $error->message = trim($error->message); - $errormsg = "DOMDocument cannot parse XML: {$error->message}"; - } else { - $errormsg = "DOMDocument cannot parse XML: Please check the XML document's validity"; - } - throw new Exception\RuntimeException($errormsg); - } - - $type = static::detectType($dom); - - static::registerCoreExtensions(); - - if (substr($type, 0, 3) == 'rss') { - $reader = new Feed\Rss($dom, $type); - } elseif (substr($type, 8, 5) == 'entry') { - $reader = new Entry\Atom($dom->documentElement, 0, self::TYPE_ATOM_10); - } elseif (substr($type, 0, 4) == 'atom') { - $reader = new Feed\Atom($dom, $type); - } else { - throw new Exception\RuntimeException('The URI used does not point to a ' - . 'valid Atom, RSS or RDF feed that Zend\Feed\Reader can parse.'); - } - return $reader; - } - - /** - * Imports a feed from a file located at $filename. - * - * @param string $filename - * @throws Exception\RuntimeException - * @return Feed\FeedInterface - */ - public static function importFile($filename) - { - ErrorHandler::start(); - $feed = file_get_contents($filename); - $err = ErrorHandler::stop(); - if ($feed === false) { - throw new Exception\RuntimeException("File '{$filename}' could not be loaded", 0, $err); - } - return static::importString($feed); - } - - /** - * Find feed links - * - * @param $uri - * @return FeedSet - * @throws Exception\RuntimeException - */ - public static function findFeedLinks($uri) - { - $client = static::getHttpClient(); - $client->setUri($uri); - $response = $client->send(); - if ($response->getStatusCode() !== 200) { - throw new Exception\RuntimeException("Failed to access $uri, got response code " . $response->getStatusCode()); - } - $responseHtml = $response->getBody(); - $libxmlErrflag = libxml_use_internal_errors(true); - $oldValue = libxml_disable_entity_loader(true); - $dom = new DOMDocument; - $status = $dom->loadHTML(trim($responseHtml)); - libxml_disable_entity_loader($oldValue); - libxml_use_internal_errors($libxmlErrflag); - if (!$status) { - // Build error message - $error = libxml_get_last_error(); - if ($error && $error->message) { - $error->message = trim($error->message); - $errormsg = "DOMDocument cannot parse HTML: {$error->message}"; - } else { - $errormsg = "DOMDocument cannot parse HTML: Please check the XML document's validity"; - } - throw new Exception\RuntimeException($errormsg); - } - $feedSet = new FeedSet; - $links = $dom->getElementsByTagName('link'); - $feedSet->addLinks($links, $uri); - return $feedSet; - } - - /** - * 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; - } - - /** - * Set plugin manager for use with Extensions - * - * @param ExtensionManagerInterface $extensionManager - */ - public static function setExtensionManager(ExtensionManagerInterface $extensionManager) - { - static::$extensionManager = $extensionManager; - } - - /** - * Get plugin manager for use with Extensions - * - * @return ExtensionManagerInterface - */ - public static function getExtensionManager() - { - if (!isset(static::$extensionManager)) { - static::setExtensionManager(new ExtensionManager()); - } - return static::$extensionManager; - } - - /** - * Register an Extension by name - * - * @param string $name - * @return void - * @throws Exception\RuntimeException if unable to resolve Extension class - */ - public static function registerExtension($name) - { - $feedName = $name . '\Feed'; - $entryName = $name . '\Entry'; - $manager = static::getExtensionManager(); - if (static::isRegistered($name)) { - if ($manager->has($feedName) || $manager->has($entryName)) { - return; - } - } - - if (!$manager->has($feedName) && !$manager->has($entryName)) { - throw new Exception\RuntimeException('Could not load extension: ' . $name - . ' using Plugin Loader. Check prefix paths are configured and extension exists.'); - } - if ($manager->has($feedName)) { - static::$extensions['feed'][] = $feedName; - } - if ($manager->has($entryName)) { - static::$extensions['entry'][] = $entryName; - } - } - - /** - * Is a given named Extension registered? - * - * @param string $extensionName - * @return bool - */ - public static function isRegistered($extensionName) - { - $feedName = $extensionName . '\Feed'; - $entryName = $extensionName . '\Entry'; - if (in_array($feedName, static::$extensions['feed']) - || in_array($entryName, static::$extensions['entry']) - ) { - return true; - } - return false; - } - - /** - * Get a list of extensions - * - * @return array - */ - public static function getExtensions() - { - return static::$extensions; - } - - /** - * Reset class state to defaults - * - * @return void - */ - public static function reset() - { - static::$cache = null; - static::$httpClient = null; - static::$httpMethodOverride = false; - static::$httpConditionalGet = false; - static::$extensionManager = null; - static::$extensions = array( - 'feed' => array( - 'DublinCore\Feed', - 'Atom\Feed' - ), - 'entry' => array( - 'Content\Entry', - 'DublinCore\Entry', - 'Atom\Entry' - ), - 'core' => array( - 'DublinCore\Feed', - 'Atom\Feed', - 'Content\Entry', - 'DublinCore\Entry', - 'Atom\Entry' - ) - ); - } - - /** - * Register core (default) extensions - * - * @return void - */ - protected static function registerCoreExtensions() - { - static::registerExtension('DublinCore'); - static::registerExtension('Content'); - static::registerExtension('Atom'); - static::registerExtension('Slash'); - static::registerExtension('WellFormedWeb'); - static::registerExtension('Thread'); - static::registerExtension('Podcast'); - } - - /** - * Utility method to apply array_unique operation to a multidimensional - * array. - * - * @param array - * @return array - */ - public static function arrayUnique(array $array) - { - foreach ($array as &$value) { - $value = serialize($value); - } - $array = array_unique($array); - foreach ($array as &$value) { - $value = unserialize($value); - } - return $array; - } -} |