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Diffstat (limited to 'libs/Zend/Feed/Writer.php')
| -rw-r--r-- | libs/Zend/Feed/Writer.php | 267 |
1 files changed, 267 insertions, 0 deletions
diff --git a/libs/Zend/Feed/Writer.php b/libs/Zend/Feed/Writer.php new file mode 100644 index 0000000000..1a40f63cd9 --- /dev/null +++ b/libs/Zend/Feed/Writer.php @@ -0,0 +1,267 @@ +<?php +/** + * Zend Framework + * + * LICENSE + * + * This source file is subject to the new BSD license that is bundled + * with this package in the file LICENSE.txt. + * It is also available through the world-wide-web at this URL: + * http://framework.zend.com/license/new-bsd + * If you did not receive a copy of the license and are unable to + * obtain it through the world-wide-web, please send an email + * to license@zend.com so we can send you a copy immediately. + * + * @category Zend + * @package Zend_Feed_Writer + * @copyright Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com) + * @license http://framework.zend.com/license/new-bsd New BSD License + * @version $Id: Writer.php 20096 2010-01-06 02:05:09Z bkarwin $ + */ + +/** + * @category Zend + * @package Zend_Feed_Writer + * @copyright Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com) + * @license http://framework.zend.com/license/new-bsd New BSD License + */ +class Zend_Feed_Writer +{ + /** + * 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_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'; + + /** + * PluginLoader instance used by component + * + * @var Zend_Loader_PluginLoader_Interface + */ + protected static $_pluginLoader = null; + + /** + * Path on which to search for Extension classes + * + * @var array + */ + protected static $_prefixPaths = array(); + + /** + * Array of registered extensions by class postfix (after the base class + * name) across four categories - data containers and renderers for entry + * and feed levels. + * + * @var array + */ + protected static $_extensions = array( + 'entry' => array(), + 'feed' => array(), + 'entryRenderer' => array(), + 'feedRenderer' => array(), + ); + + /** + * Set plugin loader for use with Extensions + * + * @param Zend_Loader_PluginLoader_Interface + */ + public static function setPluginLoader(Zend_Loader_PluginLoader_Interface $loader) + { + self::$_pluginLoader = $loader; + } + + /** + * Get plugin loader for use with Extensions + * + * @return Zend_Loader_PluginLoader_Interface + */ + public static function getPluginLoader() + { + if (!isset(self::$_pluginLoader)) { + // require_once 'Zend/Loader/PluginLoader.php'; + self::$_pluginLoader = new Zend_Loader_PluginLoader(array( + 'Zend_Feed_Writer_Extension_' => 'Zend/Feed/Writer/Extension/', + )); + } + return self::$_pluginLoader; + } + + /** + * Add prefix path for loading Extensions + * + * @param string $prefix + * @param string $path + * @return void + */ + public static function addPrefixPath($prefix, $path) + { + $prefix = rtrim($prefix, '_'); + $path = rtrim($path, DIRECTORY_SEPARATOR); + self::getPluginLoader()->addPrefixPath($prefix, $path); + } + + /** + * Add multiple Extension prefix paths at once + * + * @param array $spec + * @return void + */ + public static function addPrefixPaths(array $spec) + { + if (isset($spec['prefix']) && isset($spec['path'])) { + self::addPrefixPath($spec['prefix'], $spec['path']); + } + foreach ($spec as $prefixPath) { + if (isset($prefixPath['prefix']) && isset($prefixPath['path'])) { + self::addPrefixPath($prefixPath['prefix'], $prefixPath['path']); + } + } + } + + /** + * Register an Extension by name + * + * @param string $name + * @return void + * @throws Zend_Feed_Exception if unable to resolve Extension class + */ + public static function registerExtension($name) + { + $feedName = $name . '_Feed'; + $entryName = $name . '_Entry'; + $feedRendererName = $name . '_Renderer_Feed'; + $entryRendererName = $name . '_Renderer_Entry'; + if (self::isRegistered($name)) { + if (self::getPluginLoader()->isLoaded($feedName) + || self::getPluginLoader()->isLoaded($entryName) + || self::getPluginLoader()->isLoaded($feedRendererName) + || self::getPluginLoader()->isLoaded($entryRendererName) + ) { + return; + } + } + try { + self::getPluginLoader()->load($feedName); + self::$_extensions['feed'][] = $feedName; + } catch (Zend_Loader_PluginLoader_Exception $e) { + } + try { + self::getPluginLoader()->load($entryName); + self::$_extensions['entry'][] = $entryName; + } catch (Zend_Loader_PluginLoader_Exception $e) { + } + try { + self::getPluginLoader()->load($feedRendererName); + self::$_extensions['feedRenderer'][] = $feedRendererName; + } catch (Zend_Loader_PluginLoader_Exception $e) { + } + try { + self::getPluginLoader()->load($entryRendererName); + self::$_extensions['entryRenderer'][] = $entryRendererName; + } catch (Zend_Loader_PluginLoader_Exception $e) { + } + if (!self::getPluginLoader()->isLoaded($feedName) + && !self::getPluginLoader()->isLoaded($entryName) + && !self::getPluginLoader()->isLoaded($feedRendererName) + && !self::getPluginLoader()->isLoaded($entryRendererName) + ) { + // require_once 'Zend/Feed/Exception.php'; + throw new Zend_Feed_Exception('Could not load extension: ' . $name + . 'using Plugin Loader. Check prefix paths are configured and extension exists.'); + } + } + + /** + * Is a given named Extension registered? + * + * @param string $extensionName + * @return boolean + */ + public static function isRegistered($extensionName) + { + $feedName = $extensionName . '_Feed'; + $entryName = $extensionName . '_Entry'; + $feedRendererName = $extensionName . '_Renderer_Feed'; + $entryRendererName = $extensionName . '_Renderer_Entry'; + if (in_array($feedName, self::$_extensions['feed']) + || in_array($entryName, self::$_extensions['entry']) + || in_array($feedRendererName, self::$_extensions['feedRenderer']) + || in_array($entryRendererName, self::$_extensions['entryRenderer']) + ) { + return true; + } + return false; + } + + /** + * Get a list of extensions + * + * @return array + */ + public static function getExtensions() + { + return self::$_extensions; + } + + /** + * Reset class state to defaults + * + * @return void + */ + public static function reset() + { + self::$_pluginLoader = null; + self::$_prefixPaths = array(); + self::$_extensions = array( + 'entry' => array(), + 'feed' => array(), + 'entryRenderer' => array(), + 'feedRenderer' => array(), + ); + } + + /** + * Register core (default) extensions + * + * @return void + */ + public static function registerCoreExtensions() + { + self::registerExtension('DublinCore'); + self::registerExtension('Content'); + self::registerExtension('Atom'); + self::registerExtension('Slash'); + self::registerExtension('WellFormedWeb'); + self::registerExtension('Threading'); + self::registerExtension('ITunes'); + } + + public static function lcfirst($str) + { + $str[0] = strtolower($str[0]); + return $str; + } + +} |