diff --git a/core/class/FeedWriter/ATOM.php b/core/class/FeedWriter/ATOM.php deleted file mode 100644 index 28494501..00000000 --- a/core/class/FeedWriter/ATOM.php +++ /dev/null @@ -1,38 +0,0 @@ - - * - * This file is part of the "Universal Feed Writer" project. - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, either version 3 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see . - */ - -/** - * Wrapper for creating ATOM feeds - * - * @package UniversalFeedWriter - */ -class ATOM extends Feed -{ - /** - * {@inheritdoc} - */ - public function __construct() - { - parent::__construct(Feed::ATOM); - } - -} diff --git a/core/class/FeedWriter/CHANGELOG.md b/core/class/FeedWriter/CHANGELOG.md deleted file mode 100644 index 1d0eccc6..00000000 --- a/core/class/FeedWriter/CHANGELOG.md +++ /dev/null @@ -1,69 +0,0 @@ -# Change Log -All notable changes to this project will be documented in this file. - -The format is based on [Keep a Changelog](http://keepachangelog.com/) . - -## [v1.1.1] - 2016-11-19 -### Changed -- Improved the documentation. -- Changed to PSR-4 autoloader in composer.json. - -### Fixed -- Item::addElement did not method chain in error conditions. - -## [v1.1.0] - 2016-11-08 -### Added -- Support for multiple element values. -- Support for a feed description in ATOM feeds. -- Support for ATOM feeds without ```link``` elements. -- Support for a feed image in RSS 1.0 and ATOM feeds. - -### Changed -- The script does now throw Exceptions instead of stopping the PHP interpreter on error conditions. -- The unique identifier for ATOM feeds / entries use the feed / entry title for generating the ID (previously the feed / entry link). -- Some URI schemes for ```Item::setId``` were wrongly allowed. -- The parameter order of the ```Feed::setImage``` method was changed. - -### Fixed -- Fixed slow generation of the feed with huge amounts of feed entries (like 40k entries). -- Fixed PHP warning when ```Feed::setChannelAbout``` for RSS 1.0 feeds was not called. -- A feed element was generated twice if the element content & attribute value was ```NULL```. -- The detection of twice the same link with ```rel=alternate```, ```hreflang``` & ```type``` did not work. - -### Removed -- The deprecated method ```Item::setEnclosure``` was removed. Use ```Item::addEnclosure``` instead. - -## [v1.0.4] - 2016-04-17 -### Changed -- The unique identifier for ATOM feed entries is now compliant to the ATOM standard. - -### Fixed -- Filter more invalid XML chars. -- Fixed a PHP warning displayed if ```Feed::setTitle``` or ```Feed::setLink``` was not called. - -## [v1.0.3] - 2015-11-11 -### Added -- Method for removing tags which were CDATA encoded. - -### Fixed -- Fixed error when the filtering of invalid XML chars failed. -- Fixed missing docblock documentation. - -## [v1.0.2] - 2015-01-23 -### Fixed -- Fixed a wrong docblock return data type. - -## [v1.0.1] - 2014-09-21 -### Fixed -- Filter invalid XML chars. - -## v1.0 - 2014-09-14 - - -[Unreleased]: https://github.com/mibe/FeedWriter/compare/v1.1.1...HEAD -[v1.1.1]: https://github.com/mibe/FeedWriter/compare/v1.1.0...v1.1.1 -[v1.1.0]: https://github.com/mibe/FeedWriter/compare/v1.0.4...v1.1.0 -[v1.0.4]: https://github.com/mibe/FeedWriter/compare/v1.0.3...v1.0.4 -[v1.0.3]: https://github.com/mibe/FeedWriter/compare/v1.0.2...v1.0.3 -[v1.0.2]: https://github.com/mibe/FeedWriter/compare/v1.0.1...v1.0.2 -[v1.0.1]: https://github.com/mibe/FeedWriter/compare/v1.0...v1.0.1 diff --git a/core/class/FeedWriter/Feed.php b/core/class/FeedWriter/Feed.php deleted file mode 100644 index 9e0650a8..00000000 --- a/core/class/FeedWriter/Feed.php +++ /dev/null @@ -1,1017 +0,0 @@ - - * Copyright (C) 2010-2016 Michael Bemmerl - * - * This file is part of the "Universal Feed Writer" project. - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, either version 3 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see . - */ - -/** - * Universal Feed Writer class - * - * Generate RSS 1.0, RSS2.0 and ATOM Feeds - * - * @package UniversalFeedWriter - * @author Anis uddin Ahmad - * @link http://www.ajaxray.com/projects/rss - */ -abstract class Feed -{ - // RSS 0.90 Officially obsoleted by 1.0 - // RSS 0.91, 0.92, 0.93 and 0.94 Officially obsoleted by 2.0 - // So, define constants for RSS 1.0, RSS 2.0 and ATOM - - const RSS1 = 'RSS 1.0'; - const RSS2 = 'RSS 2.0'; - const ATOM = 'ATOM'; - - const VERSION = '1.1.0'; - - /** - * Collection of all channel elements - */ - private $channels = array(); - - /** - * Collection of items as object of \FeedWriter\Item class. - */ - private $items = array(); - - /** - * Collection of other version wise data. - * - * Currently used to store the 'rdf:about' attribute and image element of the channel (both RSS1 only). - */ - private $data = array(); - - /** - * The tag names which have to encoded as CDATA - */ - private $CDATAEncoding = array(); - - /** - * Collection of XML namespaces - */ - private $namespaces = array(); - - /** - * Contains the format of this feed. - */ - private $version = null; - - /** - * Constructor - * - * If no version is given, a feed in RSS 2.0 format will be generated. - * - * @param string $version the version constant (RSS1/RSS2/ATOM). - */ - protected function __construct($version = Feed::RSS2) - { - $this->version = $version; - - // Setting default encoding - $this->encoding = 'utf-8'; - - // Setting default value for essential channel element - $this->setTitle($version . ' Feed'); - - // Add some default XML namespaces - $this->namespaces['content'] = 'http://purl.org/rss/1.0/modules/content/'; - $this->namespaces['wfw'] = 'http://wellformedweb.org/CommentAPI/'; - $this->namespaces['atom'] = 'http://www.w3.org/2005/Atom'; - $this->namespaces['rdf'] = 'http://www.w3.org/1999/02/22-rdf-syntax-ns#'; - $this->namespaces['rss1'] = 'http://purl.org/rss/1.0/'; - $this->namespaces['dc'] = 'http://purl.org/dc/elements/1.1/'; - $this->namespaces['sy'] = 'http://purl.org/rss/1.0/modules/syndication/'; - - // Tag names to encode in CDATA - $this->addCDATAEncoding(array('description', 'content:encoded', 'summary')); - } - - // Start # public functions --------------------------------------------- - - /** - * Set the URLs for feed pagination. - * - * See RFC 5005, chapter 3. At least one page URL must be specified. - * - * @param string $nextURL The URL to the next page of this feed. Optional. - * @param string $previousURL The URL to the previous page of this feed. Optional. - * @param string $firstURL The URL to the first page of this feed. Optional. - * @param string $lastURL The URL to the last page of this feed. Optional. - * @link http://tools.ietf.org/html/rfc5005#section-3 - * @return self - * @throws \LogicException if none of the parameters are set. - */ - public function setPagination($nextURL = null, $previousURL = null, $firstURL = null, $lastURL = null) - { - if (empty($nextURL) && empty($previousURL) && empty($firstURL) && empty($lastURL)) - throw new \LogicException('At least one URL must be specified for pagination to work.'); - - if (!empty($nextURL)) - $this->setAtomLink($nextURL, 'next'); - - if (!empty($previousURL)) - $this->setAtomLink($previousURL, 'previous'); - - if (!empty($firstURL)) - $this->setAtomLink($firstURL, 'first'); - - if (!empty($lastURL)) - $this->setAtomLink($lastURL, 'last'); - - return $this; - } - - /** - * Add a channel element indicating the program used to generate the feed. - * - * @return self - * @throws InvalidOperationException if this method is called on an RSS1 feed. - */ - public function addGenerator() - { - if ($this->version == Feed::ATOM) - $this->setChannelElement('atom:generator', 'FeedWriter', array('uri' => 'https://github.com/mibe/FeedWriter')); - else if ($this->version == Feed::RSS2) - $this->setChannelElement('generator', 'FeedWriter'); - else - throw new InvalidOperationException('The generator element is not supported in RSS1 feeds.'); - - return $this; - } - - /** - * Add a XML namespace to the internal list of namespaces. After that, - * custom channel elements can be used properly to generate a valid feed. - * - * @access public - * @param string $prefix namespace prefix - * @param string $uri namespace name (URI) - * @return self - * @link http://www.w3.org/TR/REC-xml-names/ - * @throws \InvalidArgumentException if the prefix or uri is empty or NULL. - */ - public function addNamespace($prefix, $uri) - { - if (empty($prefix)) - throw new \InvalidArgumentException('The prefix may not be emtpy or NULL.'); - if (empty($uri)) - throw new \InvalidArgumentException('The uri may not be empty or NULL.'); - - $this->namespaces[$prefix] = $uri; - - return $this; - } - - /** - * Add a channel element to the feed. - * - * @access public - * @param string $elementName name of the channel tag - * @param string $content content of the channel tag - * @param array array of element attributes with attribute name as array key - * @param bool TRUE if this element can appear multiple times - * @return self - * @throws \InvalidArgumentException if the element name is not a string, empty or NULL. - */ - public function setChannelElement($elementName, $content, array $attributes = null, $multiple = false) - { - if (empty($elementName)) - throw new \InvalidArgumentException('The element name may not be empty or NULL.'); - if (!is_string($elementName)) - throw new \InvalidArgumentException('The element name must be a string.'); - - $entity['content'] = $content; - $entity['attributes'] = $attributes; - - if ($multiple === TRUE) - $this->channels[$elementName][] = $entity; - else - $this->channels[$elementName] = $entity; - - return $this; - } - - /** - * Set multiple channel elements from an array. Array elements - * should be 'channelName' => 'channelContent' format. - * - * @access public - * @param array array of channels - * @return self - */ - public function setChannelElementsFromArray(array $elementArray) - { - foreach ($elementArray as $elementName => $content) { - $this->setChannelElement($elementName, $content); - } - - return $this; - } - - /** - * Get the appropriate MIME type string for the current feed. - * - * @access public - * @return string The MIME type string. - */ - public function getMIMEType() - { - switch ($this->version) { - case Feed::RSS2 : $mimeType = "application/rss+xml"; - break; - case Feed::RSS1 : $mimeType = "application/rdf+xml"; - break; - case Feed::ATOM : $mimeType = "application/atom+xml"; - break; - default : $mimeType = "text/xml"; - } - - return $mimeType; - } - - /** - * Print the actual RSS/ATOM file - * - * Sets a Content-Type header and echoes the contents of the feed. - * Should only be used in situations where direct output is desired; - * if you need to pass a string around, use generateFeed() instead. - * - * @access public - * @param bool FALSE if the specific feed media type should be sent. - * @return void - * @throws \InvalidArgumentException if the useGenericContentType parameter is not boolean. - */ - public function printFeed($useGenericContentType = false) - { - if (!is_bool($useGenericContentType)) - throw new \InvalidArgumentException('The useGenericContentType parameter must be boolean.'); - - $contentType = "text/xml"; - - if (!$useGenericContentType) { - $contentType = $this->getMIMEType(); - } - - // Generate the feed before setting the header, so Exceptions will be nicely visible. - $feed = $this->generateFeed(); - header("Content-Type: " . $contentType . "; charset=" . $this->encoding); - echo $feed; - } - - /** - * Generate the feed. - * - * @access public - * @return string The complete feed XML. - * @throws InvalidOperationException if the link element of the feed is not set. - */ - public function generateFeed() - { - if ($this->version != Feed::ATOM && !array_key_exists('link', $this->channels)) - throw new InvalidOperationException('RSS1 & RSS2 feeds need a link element. Call the setLink method before this method.'); - - return $this->makeHeader() - . $this->makeChannels() - . $this->makeItems() - . $this->makeFooter(); - } - - /** - * Create a new Item. - * - * @access public - * @return Item instance of Item class - */ - public function createNewItem() - { - $Item = new Item($this->version); - - return $Item; - } - - /** - * Add one or more tags to the list of CDATA encoded tags - * - * @access public - * @param array $tags An array of tag names that are merged into the list of tags which should be encoded as CDATA - * @return self - */ - public function addCDATAEncoding(array $tags) - { - $this->CDATAEncoding = array_merge($this->CDATAEncoding, $tags); - - return $this; - } - - /** - * Get list of CDATA encoded properties - * - * @access public - * @return array Return an array of CDATA properties that are to be encoded as CDATA - */ - public function getCDATAEncoding() - { - return $this->CDATAEncoding; - } - - /** - * Remove tags from the list of CDATA encoded tags - * - * @access public - * @param array $tags An array of tag names that should be removed. - * @return void - */ - public function removeCDATAEncoding(array $tags) - { - // Call array_values to re-index the array. - $this->CDATAEncoding = array_values(array_diff($this->CDATAEncoding, $tags)); - } - - /** - * Add a FeedItem to the main class - * - * @access public - * @param Item $feedItem instance of Item class - * @return self - * @throws \InvalidArgumentException if the given item version mismatches. - */ - public function addItem(Item $feedItem) - { - if ($feedItem->getVersion() != $this->version) - { - $msg = sprintf('Feed type mismatch: This instance can handle %s feeds only, but item for %s feeds given.', $this->version, $feedItem->getVersion()); - throw new \InvalidArgumentException($msg); - } - - $this->items[] = $feedItem; - - return $this; - } - - // Wrapper functions ------------------------------------------------------------------- - - /** - * Set the 'encoding' attribute in the XML prolog. - * - * @access public - * @param string $encoding value of 'encoding' attribute - * @return self - * @throws \InvalidArgumentException if the encoding is not a string, empty or NULL. - */ - public function setEncoding($encoding) - { - if (empty($encoding)) - throw new \InvalidArgumentException('The encoding may not be empty or NULL.'); - if (!is_string($encoding)) - throw new \InvalidArgumentException('The encoding must be a string.'); - - $this->encoding = $encoding; - - return $this; - } - - /** - * Set the 'title' channel element - * - * @access public - * @param string $title value of 'title' channel tag - * @return self - */ - public function setTitle($title) - { - return $this->setChannelElement('title', $title); - } - - /** - * Set the date when the feed was lastly updated. - * - * This adds the 'updated' element to the feed. The value of the date parameter - * can be either an instance of the DateTime class, an integer containing a UNIX - * timestamp or a string which is parseable by PHP's 'strtotime' function. - * - * Not supported in RSS1 feeds. - * - * @access public - * @param DateTime|int|string Date which should be used. - * @return self - * @throws \InvalidArgumentException if the given date is not an instance of DateTime, a UNIX timestamp or a date string. - * @throws InvalidOperationException if this method is called on an RSS1 feed. - */ - public function setDate($date) - { - if ($this->version == Feed::RSS1) - throw new InvalidOperationException('The publication date is not supported in RSS1 feeds.'); - - // The feeds have different date formats. - $format = $this->version == Feed::ATOM ? \DATE_ATOM : \DATE_RSS; - - if ($date instanceof DateTime) - $date = $date->format($format); - else if(is_numeric($date) && $date >= 0) - $date = date($format, $date); - else if (is_string($date)) - { - $timestamp = strtotime($date); - if ($timestamp === FALSE) - throw new \InvalidArgumentException('The given date was not parseable.'); - - $date = date($format, $timestamp); - } - else - throw new \InvalidArgumentException('The given date is not an instance of DateTime, a UNIX timestamp or a date string.'); - - if ($this->version == Feed::ATOM) - $this->setChannelElement('updated', $date); - else - $this->setChannelElement('lastBuildDate', $date); - - return $this; - } - - /** - * Set a phrase or sentence describing the feed. - * - * @access public - * @param string $description Description of the feed. - * @return self - */ - public function setDescription($description) - { - if ($this->version != Feed::ATOM) - $this->setChannelElement('description', $description); - else - $this->setChannelElement('subtitle', $description); - - return $this; - } - - /** - * Set the 'link' channel element - * - * @access public - * @param string $link value of 'link' channel tag - * @return self - */ - public function setLink($link) - { - if ($this->version == Feed::ATOM) - $this->setAtomLink($link); - else - $this->setChannelElement('link', $link); - - return $this; - } - - /** - * Set custom 'link' channel elements. - * - * In ATOM feeds, only one link with alternate relation and the same combination of - * type and hreflang values. - * - * @access public - * @param string $href URI of this link - * @param string $rel relation type of the resource - * @param string $type MIME type of the target resource - * @param string $hreflang language of the resource - * @param string $title human-readable information about the resource - * @param int $length length of the resource in bytes - * @link https://www.iana.org/assignments/link-relations/link-relations.xml - * @link https://tools.ietf.org/html/rfc4287#section-4.2.7 - * @return self - * @throws \InvalidArgumentException on multiple occasions. - * @throws InvalidOperationException if the same link with the same attributes was already added to the feed. - */ - public function setAtomLink($href, $rel = null, $type = null, $hreflang = null, $title = null, $length = null) - { - $data = array('href' => $href); - - if ($rel != null) { - if (!is_string($rel) || empty($rel)) - throw new \InvalidArgumentException('rel parameter must be a string and a valid relation identifier.'); - - $data['rel'] = $rel; - } - if ($type != null) { - // Regex used from RFC 4287, page 41 - if (!is_string($type) || preg_match('/.+\/.+/', $type) != 1) - throw new \InvalidArgumentException('type parameter must be a string and a MIME type.'); - - $data['type'] = $type; - } - if ($hreflang != null) { - // Regex used from RFC 4287, page 41 - if (!is_string($hreflang) || preg_match('/[A-Za-z]{1,8}(-[A-Za-z0-9]{1,8})*/', $hreflang) != 1) - throw new \InvalidArgumentException('hreflang parameter must be a string and a valid language code.'); - - $data['hreflang'] = $hreflang; - } - if ($title != null) { - if (!is_string($title) || empty($title)) - throw new \InvalidArgumentException('title parameter must be a string and not empty.'); - - $data['title'] = $title; - } - if ($length != null) { - if (!is_int($length) || $length < 0) - throw new \InvalidArgumentException('length parameter must be a positive integer.'); - - $data['length'] = (string) $length; - } - - // ATOM spec. has some restrictions on atom:link usage - // See RFC 4287, page 12 (4.1.1) - if ($this->version == Feed::ATOM) { - foreach ($this->channels as $key => $value) { - if ($key != 'atom:link') - continue; - - // $value is an array , so check every element - foreach ($value as $linkItem) { - $attrib = $linkItem['attributes']; - // Only one link with relation alternate and same hreflang & type is allowed. - if (@$attrib['rel'] == 'alternate' && @$attrib['hreflang'] == $hreflang && @$attrib['type'] == $type) - throw new InvalidOperationException('The feed must not contain more than one link element with a' - . ' relation of "alternate" that has the same combination of type and hreflang attribute values.'); - } - } - } - - return $this->setChannelElement('atom:link', '', $data, true); - } - - /** - * Set an 'atom:link' channel element with relation=self attribute. - * Needs the full URL to this feed. - * - * @link http://www.rssboard.org/rss-profile#namespace-elements-atom-link - * @access public - * @param string $url URL to this feed - * @return self - */ - public function setSelfLink($url) - { - return $this->setAtomLink($url, 'self', $this->getMIMEType()); - } - - /** - * Set the 'image' channel element - * - * @access public - * @param string $url URL of the image - * @param string $title Title of the image. RSS only. - * @param string $link Link target URL of the image. RSS only. - * @return self - * @throws \InvalidArgumentException if the url is invalid. - * @throws \InvalidArgumentException if the title and link parameter are not a string or empty. - */ - public function setImage($url, $title = null, $link = null) - { - if (!is_string($url) || empty($url)) - throw new \InvalidArgumentException('url parameter must be a string and may not be empty or NULL.'); - - // RSS feeds have support for a title & link element. - if ($this->version != Feed::ATOM) - { - if (!is_string($title) || empty($title)) - throw new \InvalidArgumentException('title parameter must be a string and may not be empty or NULL.'); - if (!is_string($link) || empty($link)) - throw new \InvalidArgumentException('link parameter must be a string and may not be empty or NULL.'); - - $data = array('title'=>$title, 'link'=>$link, 'url'=>$url); - $name = 'image'; - } - else - { - $name = 'logo'; - $data = $url; - } - - // Special handling for RSS1 again (since RSS1 is a bit strange...) - if ($this->version == Feed::RSS1) - { - $this->data['Image'] = $data; - return $this->setChannelElement($name, '', array('rdf:resource' => $url), false); - } - else - return $this->setChannelElement($name, $data); - } - - /** - * Set the channel 'rdf:about' attribute, which is used in RSS1 feeds only. - * - * @access public - * @param string $url value of 'rdf:about' attribute of the channel element - * @return self - * @throws InvalidOperationException if this method is called and the feed is not of type RSS1. - * @throws \InvalidArgumentException if the given URL is invalid. - */ - public function setChannelAbout($url) - { - if ($this->version != Feed::RSS1) - throw new InvalidOperationException("This method is only supported in RSS1 feeds."); - if (empty($url)) - throw new \InvalidArgumentException('The about URL may not be empty or NULL.'); - if (!is_string($url)) - throw new \InvalidArgumentException('The about URL must be a string.'); - - $this->data['ChannelAbout'] = $url; - - return $this; - } - - /** - * Generate an UUID. - * - * The UUID is based on an MD5 hash. If no key is given, a unique ID as the input - * for the MD5 hash is generated. - * - * @author Anis uddin Ahmad - * @access public - * @param string $key optional key on which the UUID is generated - * @param string $prefix an optional prefix - * @return string the formatted UUID - */ - public static function uuid($key = null, $prefix = '') - { - $key = ($key == null) ? uniqid(rand()) : $key; - $chars = md5($key); - $uuid = substr($chars,0,8) . '-'; - $uuid .= substr($chars,8,4) . '-'; - $uuid .= substr($chars,12,4) . '-'; - $uuid .= substr($chars,16,4) . '-'; - $uuid .= substr($chars,20,12); - - return $prefix . $uuid; - } - - /** - * Replace invalid XML characters. - * - * @link http://www.phpwact.org/php/i18n/charsets#xml See utf8_for_xml() function - * @link http://www.w3.org/TR/REC-xml/#charsets - * @link https://github.com/mibe/FeedWriter/issues/30 - * - * @access public - * @param string $string string which should be filtered - * @param string $replacement replace invalid characters with this string - * @return string the filtered string - */ - public static function filterInvalidXMLChars($string, $replacement = '_') // default to '\x{FFFD}' ??? - { - $result = preg_replace('/[^\x{0009}\x{000a}\x{000d}\x{0020}-\x{D7FF}\x{E000}-\x{FFFD}\x{10000}-\x{10FFFF}]+/u', $replacement, $string); - - // Did the PCRE replace failed because of bad UTF-8 data? - // If yes, try a non-multibyte regex and without the UTF-8 mode enabled. - if ($result == NULL && preg_last_error() == PREG_BAD_UTF8_ERROR) - $result = preg_replace('/[^\x09\x0a\x0d\x20-\xFF]+/', $replacement, $string); - - // In case the regex replacing failed completely, return the whole unfiltered string. - if ($result == NULL) - $result = $string; - - return $result; - } - // End # public functions ---------------------------------------------- - - // Start # private functions ---------------------------------------------- - - /** - * Returns all used XML namespace prefixes in this instance. - * This includes all channel elements and feed items. - * Unfortunately some namespace prefixes are not included, - * because they are hardcoded, e.g. rdf. - * - * @access private - * @return array Array with namespace prefix as value. - */ - private function getNamespacePrefixes() - { - $prefixes = array(); - - // Get all tag names from channel elements... - $tags = array_keys($this->channels); - - // ... and now all names from feed items - foreach ($this->items as $item) { - foreach (array_keys($item->getElements()) as $key) { - if (!in_array($key, $tags)) { - $tags[] = $key; - } - } - } - - // Look for prefixes in those tag names - foreach ($tags as $tag) { - $elements = explode(':', $tag); - - if (count($elements) != 2) - continue; - - $prefixes[] = $elements[0]; - } - - return array_unique($prefixes); - } - - /** - * Returns the XML header and root element, depending on the feed type. - * - * @access private - * @return string The XML header of the feed. - * @throws InvalidOperationException if an unknown XML namespace prefix is encountered. - */ - private function makeHeader() - { - $out = 'encoding.'" ?>' . PHP_EOL; - - $prefixes = $this->getNamespacePrefixes(); - $attributes = array(); - $tagName = ''; - $defaultNamespace = ''; - - if ($this->version == Feed::RSS2) { - $tagName = 'rss'; - $attributes['version'] = '2.0'; - } elseif ($this->version == Feed::RSS1) { - $tagName = 'rdf:RDF'; - $prefixes[] = 'rdf'; - $defaultNamespace = $this->namespaces['rss1']; - } elseif ($this->version == Feed::ATOM) { - $tagName = 'feed'; - $defaultNamespace = $this->namespaces['atom']; - - // Ugly hack to remove the 'atom' value from the prefixes array. - $prefixes = array_flip($prefixes); - unset($prefixes['atom']); - $prefixes = array_flip($prefixes); - } - - // Iterate through every namespace prefix and add it to the element attributes. - foreach ($prefixes as $prefix) { - if (!isset($this->namespaces[$prefix])) - throw new InvalidOperationException('Unknown XML namespace prefix: \'' . $prefix . '\'.' - . ' Use the addNamespace method to add support for this prefix.'); - else - $attributes['xmlns:' . $prefix] = $this->namespaces[$prefix]; - } - - // Include default namepsace, if required - if (!empty($defaultNamespace)) - $attributes['xmlns'] = $defaultNamespace; - - $out .= $this->makeNode($tagName, '', $attributes, true); - - return $out; - } - - /** - * Closes the open tags at the end of file - * - * @access private - * @return string The XML footer of the feed. - */ - private function makeFooter() - { - if ($this->version == Feed::RSS2) { - return '' . PHP_EOL . ''; - } elseif ($this->version == Feed::RSS1) { - return ''; - } elseif ($this->version == Feed::ATOM) { - return ''; - } - } - - /** - * Creates a single node in XML format - * - * @access private - * @param string $tagName name of the tag - * @param mixed $tagContent tag value as string or array of nested tags in 'tagName' => 'tagValue' format - * @param array $attributes Attributes (if any) in 'attrName' => 'attrValue' format - * @param bool $omitEndTag True if the end tag should be omitted. Defaults to false. - * @return string formatted xml tag - * @throws \InvalidArgumentException if the tagContent is not an array and not a string. - */ - private function makeNode($tagName, $tagContent, array $attributes = null, $omitEndTag = false) - { - $nodeText = ''; - $attrText = ''; - - if ($attributes != null) { - foreach ($attributes as $key => $value) { - $value = self::filterInvalidXMLChars($value); - $value = htmlspecialchars($value); - $attrText .= " $key=\"$value\""; - } - } - - $attrText .= (in_array($tagName, $this->CDATAEncoding) && $this->version == Feed::ATOM) ? ' type="html"' : ''; - $nodeText .= "<{$tagName}{$attrText}>"; - $nodeText .= (in_array($tagName, $this->CDATAEncoding)) ? ' $value) { - if (is_array($value)) { - $nodeText .= PHP_EOL; - foreach ($value as $subValue) { - $nodeText .= $this->makeNode($key, $subValue); - } - } else if (is_string($value)) { - $nodeText .= $this->makeNode($key, $value); - } else { - throw new \InvalidArgumentException("Unknown node-value type for $key"); - } - } - } else { - $tagContent = self::filterInvalidXMLChars($tagContent); - $nodeText .= (in_array($tagName, $this->CDATAEncoding)) ? $this->sanitizeCDATA($tagContent) : htmlspecialchars($tagContent); - } - - $nodeText .= (in_array($tagName, $this->CDATAEncoding)) ? ']]>' : ''; - - if (!$omitEndTag) - $nodeText .= ""; - - $nodeText .= PHP_EOL; - - return $nodeText; - } - - /** - * Make the channels. - * - * @access private - * @return string The feed header as XML containing all the feed metadata. - */ - private function makeChannels() - { - $out = ''; - - //Start channel tag - switch ($this->version) { - case Feed::RSS2: - $out .= '' . PHP_EOL; - break; - case Feed::RSS1: - $out .= (isset($this->data['ChannelAbout']))? "data['ChannelAbout']}\">" : "channels['link']['content']}\">"; - break; - } - - //Print Items of channel - foreach ($this->channels as $key => $value) { - // In ATOM feeds, strip all ATOM namespace prefixes from the tag name. They are not needed here, - // because the ATOM namespace name is set as default namespace. - if ($this->version == Feed::ATOM && strncmp($key, 'atom', 4) == 0) { - $key = substr($key, 5); - } - - // The channel element can occur multiple times, when the key 'content' is not in the array. - if (!array_key_exists('content', $value)) { - // If this is the case, iterate through the array with the multiple elements. - foreach ($value as $singleElement) { - $out .= $this->makeNode($key, $singleElement['content'], $singleElement['attributes']); - } - } else { - $out .= $this->makeNode($key, $value['content'], $value['attributes']); - } - } - - if ($this->version == Feed::RSS1) { - //RSS 1.0 have special tag with channel - $out .= "" . PHP_EOL . "" . PHP_EOL; - foreach ($this->items as $item) { - $thisItems = $item->getElements(); - $out .= "" . PHP_EOL; - } - $out .= "" . PHP_EOL . "" . PHP_EOL . "" . PHP_EOL; - - // An image has its own element after the channel elements. - if (array_key_exists('image', $this->data)) - $out .= $this->makeNode('image', $this->data['Image'], array('rdf:about' => $this->data['Image']['url'])); - } else if ($this->version == Feed::ATOM) { - // ATOM feeds have a unique feed ID. Use the title channel element as key. - $out .= $this->makeNode('id', Feed::uuid($this->channels['title']['content'], 'urn:uuid:')); - } - - return $out; - } - - /** - * Prints formatted feed items - * - * @access private - * @return string The XML of every feed item. - */ - private function makeItems() - { - $out = ''; - - foreach ($this->items as $item) { - $thisItems = $item->getElements(); - - // The argument is printed as rdf:about attribute of item in RSS 1.0 - // We're using the link set in the item (which is mandatory) as the about attribute. - if ($this->version == Feed::RSS1) - $out .= $this->startItem($thisItems['link']['content']); - else - $out .= $this->startItem(); - - foreach ($thisItems as $feedItem) { - $name = $feedItem['name']; - - // Strip all ATOM namespace prefixes from tags when feed is an ATOM feed. - // Not needed here, because the ATOM namespace name is used as default namespace. - if ($this->version == Feed::ATOM && strncmp($name, 'atom', 4) == 0) - $name = substr($name, 5); - - $out .= $this->makeNode($name, $feedItem['content'], $feedItem['attributes']); - } - $out .= $this->endItem(); - } - - return $out; - } - - /** - * Make the starting tag of channels - * - * @access private - * @param string $about The value of about attribute which is used for RSS 1.0 only. - * @return string The starting XML tag of an feed item. - * @throws InvalidOperationException if this object misses the data for the about attribute. - */ - private function startItem($about = false) - { - $out = ''; - - if ($this->version == Feed::RSS2) { - $out .= '' . PHP_EOL; - } elseif ($this->version == Feed::RSS1) { - if ($about) { - $out .= "" . PHP_EOL; - } else { - throw new InvalidOperationException("Missing data for about attribute. Call setChannelAbout method."); - } - } elseif ($this->version == Feed::ATOM) { - $out .= "" . PHP_EOL; - } - - return $out; - } - - /** - * Closes feed item tag - * - * @access private - * @return string The ending XML tag of an feed item. - */ - private function endItem() - { - if ($this->version == Feed::RSS2 || $this->version == Feed::RSS1) { - return '' . PHP_EOL; - } elseif ($this->version == Feed::ATOM) { - return '' . PHP_EOL; - } - } - - /** - * Sanitizes data which will be later on returned as CDATA in the feed. - * - * A "]]>" respectively "", "]]>", $text); - $text = str_replace(" - * - * This file is part of the "Universal Feed Writer" project. - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, either version 3 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see . - */ - -/** - * The exception that is thrown when an invalid operation is performed on - * the object. - * - * @package UniversalFeedWriter - */ -class InvalidOperationException extends LogicException -{ -} diff --git a/core/class/FeedWriter/Item.php b/core/class/FeedWriter/Item.php deleted file mode 100644 index 695afe41..00000000 --- a/core/class/FeedWriter/Item.php +++ /dev/null @@ -1,413 +0,0 @@ - - * Copyright (C) 2010-2013, 2015-2016 Michael Bemmerl - * - * This file is part of the "Universal Feed Writer" project. - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, either version 3 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see . - */ - -/** - * Universal Feed Writer - * - * Item class - Used as feed element in Feed class - * - * @package UniversalFeedWriter - * @author Anis uddin Ahmad - * @link http://www.ajaxray.com/projects/rss - */ -class Item -{ - /** - * Collection of feed item elements - */ - private $elements = array(); - - /** - * Contains the format of this feed. - */ - private $version; - - /** - * Is used as a suffix when multiple elements have the same name. - **/ - private $_cpt = 0; - - /** - * Constructor - * - * @param string $version constant (RSS1/RSS2/ATOM) RSS2 is default. - */ - public function __construct($version = Feed::RSS2) - { - $this->version = $version; - } - - /** - * Return an unique number - * - * @access private - * @return int - **/ - private function cpt() - { - return $this->_cpt++; - } - - /** - * Add an element to elements array - * - * @access public - * @param string $elementName The tag name of an element - * @param string $content The content of tag - * @param array $attributes Attributes (if any) in 'attrName' => 'attrValue' format - * @param boolean $overwrite Specifies if an already existing element is overwritten. - * @param boolean $allowMultiple Specifies if multiple elements of the same name are allowed. - * @return self - * @throws \InvalidArgumentException if the element name is not a string, empty or NULL. - */ - public function addElement($elementName, $content, array $attributes = null, $overwrite = FALSE, $allowMultiple = FALSE) - { - if (empty($elementName)) - throw new \InvalidArgumentException('The element name may not be empty or NULL.'); - if (!is_string($elementName)) - throw new \InvalidArgumentException('The element name must be a string.'); - - $key = $elementName; - - // return if element already exists & if overwriting is disabled - // & if multiple elements are not allowed. - if (isset($this->elements[$elementName]) && !$overwrite) { - if (!$allowMultiple) - return $this; - - $key .= '-' . $this->cpt(); - } - - $this->elements[$key]['name'] = $elementName; - $this->elements[$key]['content'] = $content; - $this->elements[$key]['attributes'] = $attributes; - - return $this; - } - - /** - * Set multiple feed elements from an array. - * Elements which have attributes cannot be added by this method - * - * @access public - * @param array array of elements in 'tagName' => 'tagContent' format. - * @return self - */ - public function addElementArray(array $elementArray) - { - foreach ($elementArray as $elementName => $content) { - $this->addElement($elementName, $content); - } - - return $this; - } - - /** - * Return the collection of elements in this feed item - * - * @access public - * @return array All elements of this item. - * @throws InvalidOperationException on ATOM feeds if either a content or link element is missing. - * @throws InvalidOperationException on RSS1 feeds if a title or link element is missing. - */ - public function getElements() - { - // ATOM feeds have some specific requirements... - if ($this->version == Feed::ATOM) - { - // Add an 'id' element, if it was not added by calling the setLink method. - // Use the value of the title element as key, since no link element was specified. - if (!array_key_exists('id', $this->elements)) - $this->setId(Feed::uuid($this->elements['title']['content'], 'urn:uuid:')); - - // Either a 'link' or 'content' element is needed. - if (!array_key_exists('content', $this->elements) && !array_key_exists('link', $this->elements)) - throw new InvalidOperationException('ATOM feed entries need a link or a content element. Call the setLink or setContent method.'); - } - // ...same with RSS1 feeds. - else if ($this->version == Feed::RSS1) - { - if (!array_key_exists('title', $this->elements)) - throw new InvalidOperationException('RSS1 feed entries need a title element. Call the setTitle method.'); - if (!array_key_exists('link', $this->elements)) - throw new InvalidOperationException('RSS1 feed entries need a link element. Call the setLink method.'); - } - - return $this->elements; - } - - /** - * Return the type of this feed item - * - * @access public - * @return string The feed type, as defined in Feed.php - */ - public function getVersion() - { - return $this->version; - } - - // Wrapper functions ------------------------------------------------------ - - /** - * Set the 'description' element of feed item - * - * @access public - * @param string $description The content of the 'description' or 'summary' element - * @return self - */ - public function setDescription($description) - { - $tag = ($this->version == Feed::ATOM) ? 'summary' : 'description'; - - return $this->addElement($tag, $description); - } - - /** - * Set the 'content' element of the feed item - * For ATOM feeds only - * - * @access public - * @param string $content Content for the item (i.e., the body of a blog post). - * @return self - * @throws InvalidOperationException if this method is called on non-ATOM feeds. - */ - public function setContent($content) - { - if ($this->version != Feed::ATOM) - throw new InvalidOperationException('The content element is supported in ATOM feeds only.'); - - return $this->addElement('content', $content, array('type' => 'html')); - } - - /** - * Set the 'title' element of feed item - * - * @access public - * @param string $title The content of 'title' element - * @return self - */ - public function setTitle($title) - { - return $this->addElement('title', $title); - } - - /** - * Set the 'date' element of the feed item. - * - * The value of the date parameter can be either an instance of the - * DateTime class, an integer containing a UNIX timestamp or a string - * which is parseable by PHP's 'strtotime' function. - * - * @access public - * @param DateTime|int|string $date Date which should be used. - * @return self - * @throws \InvalidArgumentException if the given date was not parseable. - */ - public function setDate($date) - { - if (!is_numeric($date)) { - if ($date instanceof DateTime) - $date = $date->getTimestamp(); - else { - $date = strtotime($date); - - if ($date === FALSE) - throw new \InvalidArgumentException('The given date string was not parseable.'); - } - } elseif ($date < 0) - throw new \InvalidArgumentException('The given date is not an UNIX timestamp.'); - - if ($this->version == Feed::ATOM) { - $tag = 'updated'; - $value = date(\DATE_ATOM, $date); - } elseif ($this->version == Feed::RSS2) { - $tag = 'pubDate'; - $value = date(\DATE_RSS, $date); - } else { - $tag = 'dc:date'; - $value = date("Y-m-d", $date); - } - - return $this->addElement($tag, $value); - } - - /** - * Set the 'link' element of feed item - * - * @access public - * @param string $link The content of 'link' element - * @return self - */ - public function setLink($link) - { - if ($this->version == Feed::RSS2 || $this->version == Feed::RSS1) { - $this->addElement('link', $link); - } else { - $this->addElement('link','',array('href'=>$link)); - $this->setId(Feed::uuid($link,'urn:uuid:')); - } - - return $this; - } - - /** - * Attach a external media to the feed item. - * Not supported in RSS 1.0 feeds. - * - * See RFC 4288 for syntactical correct MIME types. - * - * Note that you should avoid the use of more than one enclosure in one item, - * since some RSS aggregators don't support it. - * - * @access public - * @param string $url The URL of the media. - * @param integer $length The length of the media. - * @param string $type The MIME type attribute of the media. - * @param boolean $multiple Specifies if multiple enclosures are allowed - * @return self - * @link https://tools.ietf.org/html/rfc4288 - * @throws \InvalidArgumentException if the length or type parameter is invalid. - * @throws InvalidOperationException if this method is called on RSS1 feeds. - */ - public function addEnclosure($url, $length, $type, $multiple = TRUE) - { - if ($this->version == Feed::RSS1) - throw new InvalidOperationException('Media attachment is not supported in RSS1 feeds.'); - - // the length parameter should be set to 0 if it can't be determined - // see http://www.rssboard.org/rss-profile#element-channel-item-enclosure - if (!is_numeric($length) || $length < 0) - throw new \InvalidArgumentException('The length parameter must be an integer and greater or equals to zero.'); - - // Regex used from RFC 4287, page 41 - if (!is_string($type) || preg_match('/.+\/.+/', $type) != 1) - throw new \InvalidArgumentException('type parameter must be a string and a MIME type.'); - - $attributes = array('length' => $length, 'type' => $type); - - if ($this->version == Feed::RSS2) { - $attributes['url'] = $url; - $this->addElement('enclosure', '', $attributes, FALSE, $multiple); - } else { - $attributes['href'] = $url; - $attributes['rel'] = 'enclosure'; - $this->addElement('atom:link', '', $attributes, FALSE, $multiple); - } - - return $this; - } - - /** - * Set the 'author' element of feed item. - * Not supported in RSS 1.0 feeds. - * - * @access public - * @param string $author The author of this item - * @param string|null $email Optional email address of the author - * @param string|null $uri Optional URI related to the author - * @return self - * @throws \InvalidArgumentException if the provided email address is syntactically incorrect. - * @throws InvalidOperationException if this method is called on RSS1 feeds. - */ - public function setAuthor($author, $email = null, $uri = null) - { - if ($this->version == Feed::RSS1) - throw new InvalidOperationException('The author element is not supported in RSS1 feeds.'); - - // Regex from RFC 4287 page 41 - if ($email != null && preg_match('/.+@.+/', $email) != 1) - throw new \InvalidArgumentException('The email address is syntactically incorrect.'); - - if ($this->version == Feed::RSS2) - { - if ($email != null) - $author = $email . ' (' . $author . ')'; - - $this->addElement('author', $author); - } - else - { - $elements = array('name' => $author); - - if ($email != null) - $elements['email'] = $email; - - if ($uri != null) - $elements['uri'] = $uri; - - $this->addElement('author', $elements); - } - - return $this; - } - - /** - * Set the unique identifier of the feed item - * - * On ATOM feeds, the identifier must begin with an valid URI scheme. - * - * @access public - * @param string $id The unique identifier of this item - * @param boolean $permaLink The value of the 'isPermaLink' attribute in RSS 2 feeds. - * @return self - * @throws \InvalidArgumentException if the permaLink parameter is not boolean. - * @throws InvalidOperationException if this method is called on RSS1 feeds. - */ - public function setId($id, $permaLink = false) - { - if ($this->version == Feed::RSS2) { - if (!is_bool($permaLink)) - throw new \InvalidArgumentException('The permaLink parameter must be boolean.'); - - $permaLink = $permaLink ? 'true' : 'false'; - - $this->addElement('guid', $id, array('isPermaLink' => $permaLink)); - } elseif ($this->version == Feed::ATOM) { - // Check if the given ID is an valid URI scheme (see RFC 4287 4.2.6) - // The list of valid schemes was generated from http://www.iana.org/assignments/uri-schemes - // by using only permanent or historical schemes. - $validSchemes = array('aaa', 'aaas', 'about', 'acap', 'acct', 'cap', 'cid', 'coap', 'coaps', 'crid', 'data', 'dav', 'dict', 'dns', 'example', 'fax', 'file', 'filesystem', 'ftp', 'geo', 'go', 'gopher', 'h323', 'http', 'https', 'iax', 'icap', 'im', 'imap', 'info', 'ipp', 'ipps', 'iris', 'iris.beep', 'iris.lwz', 'iris.xpc', 'iris.xpcs', 'jabber', 'ldap', 'mailserver', 'mailto', 'mid', 'modem', 'msrp', 'msrps', 'mtqp', 'mupdate', 'news', 'nfs', 'ni', 'nih', 'nntp', 'opaquelocktoken', 'pack', 'pkcs11', 'pop', 'pres', 'prospero', 'reload', 'rtsp', 'rtsps', 'rtspu', 'service', 'session', 'shttp', 'sieve', 'sip', 'sips', 'sms', 'snews', 'snmp', 'soap.beep', 'soap.beeps', 'stun', 'stuns', 'tag', 'tel', 'telnet', 'tftp', 'thismessage', 'tip', 'tn3270', 'turn', 'turns', 'tv', 'urn', 'vemmi', 'videotex', 'vnc', 'wais', 'ws', 'wss', 'xcon', 'xcon-userid', 'xmlrpc.beep', 'xmlrpc.beeps', 'xmpp', 'z39.50', 'z39.50r', 'z39.50s'); - $found = FALSE; - $checkId = strtolower($id); - - foreach($validSchemes as $scheme) - if (strrpos($checkId, $scheme . ':', -strlen($checkId)) !== FALSE) - { - $found = TRUE; - break; - } - - if (!$found) - throw new \InvalidArgumentException("The ID must begin with an IANA-registered URI scheme."); - - $this->addElement('id', $id, NULL, TRUE); - } else - throw new InvalidOperationException('A unique ID is not supported in RSS1 feeds.'); - - return $this; - } - - } // end of class Item diff --git a/core/class/FeedWriter/README.md b/core/class/FeedWriter/README.md deleted file mode 100644 index f630af99..00000000 --- a/core/class/FeedWriter/README.md +++ /dev/null @@ -1,42 +0,0 @@ -# Generate **RSS 1.0**, **RSS 2.0** or **ATOM** Formatted Feeds - -This package can be used to generate feeds in either **RSS 1.0**, **RSS 2.0** or **ATOM** format. - -Applications can create a feed object, several feed item objects, set several types of properties of either feed and feed items, and add items to the feed. - -Once a feed is fully composed with its items, the feed class can generate the necessary XML structure to describe the feed in **RSS** or **ATOM** format. This structure can be directly sent to the browser, or just returned as string. - -## Requirements - -- PHP 5.3 or higher - -If you don't have **PHP 5.3** available on your system there is a version supporting **PHP 5.0** and above. See the `legacy-php-5.0` branch. - -## Documentation - -The documentation can be found in the `gh-pages` branch, or on [GitHub Pages](https://mibe.github.io/FeedWriter/). - -See the `/examples` directory for usage examples. - -See the `CHANGELOG.md` file for changes between the different versions. - -## Authors - -In chronological order: - -- [Anis uddin Ahmad](https://github.com/ajaxray) -- [Michael Bemmerl](https://github.com/mibe) -- Phil Freo -- Paul Ferrett -- Brennen Bearnes -- Michael Robinson -- Baptiste Fontaine -- Kristián Valentín -- Brandtley McMinn -- Julian Bogdani -- Cedric Gampert -- Yamek -- Thielj -- Pavel Khakhlou -- Daniel -- Tino Goratsch diff --git a/core/class/FeedWriter/RSS1.php b/core/class/FeedWriter/RSS1.php deleted file mode 100644 index a0465cf5..00000000 --- a/core/class/FeedWriter/RSS1.php +++ /dev/null @@ -1,37 +0,0 @@ - - * - * This file is part of the "Universal Feed Writer" project. - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, either version 3 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see . - */ - -/** - * Wrapper for creating RSS1 feeds - * - * @package UniversalFeedWriter - */ -class RSS1 extends Feed -{ - /** - * {@inheritdoc} - */ - public function __construct() - { - parent::__construct(Feed::RSS1); - } -} diff --git a/core/class/FeedWriter/RSS2.php b/core/class/FeedWriter/RSS2.php deleted file mode 100644 index 9e36a728..00000000 --- a/core/class/FeedWriter/RSS2.php +++ /dev/null @@ -1,37 +0,0 @@ - - * - * This file is part of the "Universal Feed Writer" project. - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, either version 3 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see . - */ - -/** - * Wrapper for creating RSS2 feeds - * - * @package UniversalFeedWriter - */ -class RSS2 extends Feed -{ - /** - * {@inheritdoc} - */ - public function __construct() - { - parent::__construct(Feed::RSS2); - } -}