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471 lines
15 KiB
PHTML
471 lines
15 KiB
PHTML
15 years ago
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<?php
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/**
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* Zend Framework
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*
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* LICENSE
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*
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* This source file is subject to the new BSD license that is bundled
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* with this package in the file LICENSE.txt.
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* It is also available through the world-wide-web at this URL:
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* http://framework.zend.com/license/new-bsd
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* If you did not receive a copy of the license and are unable to
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* obtain it through the world-wide-web, please send an email
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* to license@zend.com so we can send you a copy immediately.
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*
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* @category Zend
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* @package Zend_View
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* @subpackage Helper
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* @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
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* @license http://framework.zend.com/license/new-bsd New BSD License
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* @version $Id: Sitemap.php 16971 2009-07-22 18:05:45Z mikaelkael $
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*/
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/**
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* @see Zend_View_Helper_Navigation_HelperAbstract
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*/
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require_once 'Zend/View/Helper/Navigation/HelperAbstract.php';
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/**
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* Helper for printing sitemaps
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*
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* @link http://www.sitemaps.org/protocol.php
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*
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* @category Zend
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* @package Zend_View
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* @subpackage Helper
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* @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
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* @license http://framework.zend.com/license/new-bsd New BSD License
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*/
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class Zend_View_Helper_Navigation_Sitemap
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extends Zend_View_Helper_Navigation_HelperAbstract
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{
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/**
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* Namespace for the <urlset> tag
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*
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* @var string
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*/
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const SITEMAP_NS = 'http://www.sitemaps.org/schemas/sitemap/0.9';
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/**
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* Schema URL
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*
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* @var string
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*/
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const SITEMAP_XSD = 'http://www.sitemaps.org/schemas/sitemap/0.9/sitemap.xsd';
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/**
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* Whether XML output should be formatted
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*
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* @var bool
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*/
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protected $_formatOutput = false;
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/**
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* Whether the XML declaration should be included in XML output
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*
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* @var bool
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*/
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protected $_useXmlDeclaration = true;
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/**
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* Whether sitemap should be validated using Zend_Validate_Sitemap_*
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*
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* @var bool
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*/
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protected $_useSitemapValidators = true;
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/**
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* Whether sitemap should be schema validated when generated
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*
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* @var bool
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*/
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protected $_useSchemaValidation = false;
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/**
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* Server url
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*
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* @var string
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*/
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protected $_serverUrl;
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/**
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* View helper entry point:
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* Retrieves helper and optionally sets container to operate on
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*
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* @param Zend_Navigation_Container $container [optional] container to
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* operate on
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* @return Zend_View_Helper_Navigation_Sitemap fluent interface, returns
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* self
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*/
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public function sitemap(Zend_Navigation_Container $container = null)
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{
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if (null !== $container) {
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$this->setContainer($container);
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}
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return $this;
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}
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// Accessors:
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/**
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* Sets whether XML output should be formatted
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*
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* @param bool $formatOutput [optional] whether output
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* should be formatted. Default
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* is true.
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* @return Zend_View_Helper_Navigation_Sitemap fluent interface, returns
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* self
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*/
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public function setFormatOutput($formatOutput = true)
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{
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$this->_formatOutput = (bool) $formatOutput;
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return $this;
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}
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/**
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* Returns whether XML output should be formatted
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*
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* @return bool whether XML output should be formatted
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*/
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public function getFormatOutput()
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{
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return $this->_formatOutput;
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}
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/**
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* Sets whether the XML declaration should be used in output
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*
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* @param bool $useXmlDecl whether XML delcaration
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* should be rendered
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* @return Zend_View_Helper_Navigation_Sitemap fluent interface, returns
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* self
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*/
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public function setUseXmlDeclaration($useXmlDecl)
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{
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$this->_useXmlDeclaration = (bool) $useXmlDecl;
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return $this;
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}
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/**
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* Returns whether the XML declaration should be used in output
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*
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* @return bool whether the XML declaration should be used in output
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*/
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public function getUseXmlDeclaration()
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{
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return $this->_useXmlDeclaration;
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}
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/**
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* Sets whether sitemap should be validated using Zend_Validate_Sitemap_*
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*
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* @param bool $useSitemapValidators whether sitemap validators
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* should be used
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* @return Zend_View_Helper_Navigation_Sitemap fluent interface, returns
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* self
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*/
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public function setUseSitemapValidators($useSitemapValidators)
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{
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$this->_useSitemapValidators = (bool) $useSitemapValidators;
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return $this;
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}
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/**
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* Returns whether sitemap should be validated using Zend_Validate_Sitemap_*
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*
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* @return bool whether sitemap should be validated using validators
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*/
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public function getUseSitemapValidators()
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{
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return $this->_useSitemapValidators;
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}
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/**
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* Sets whether sitemap should be schema validated when generated
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*
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* @param bool $schemaValidation whether sitemap should
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* validated using XSD Schema
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* @return Zend_View_Helper_Navigation_Sitemap fluent interface, returns
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* self
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*/
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public function setUseSchemaValidation($schemaValidation)
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{
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$this->_useSchemaValidation = (bool) $schemaValidation;
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return $this;
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}
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/**
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* Returns true if sitemap should be schema validated when generated
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*
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* @return bool
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*/
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public function getUseSchemaValidation()
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{
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return $this->_useSchemaValidation;
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}
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/**
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* Sets server url (scheme and host-related stuff without request URI)
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*
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* E.g. http://www.example.com
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*
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* @param string $serverUrl server URL to set (only
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* scheme and host)
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* @throws Zend_Uri_Exception if invalid server URL
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* @return Zend_View_Helper_Navigation_Sitemap fluent interface, returns
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* self
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*/
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public function setServerUrl($serverUrl)
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{
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require_once 'Zend/Uri.php';
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$uri = Zend_Uri::factory($serverUrl);
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$uri->setFragment('');
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$uri->setPath('');
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$uri->setQuery('');
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if ($uri->valid()) {
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$this->_serverUrl = $uri->getUri();
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} else {
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require_once 'Zend/Uri/Exception.php';
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throw new Zend_Uri_Exception(sprintf(
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'Invalid server URL: "%s"',
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$serverUrl));
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}
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return $this;
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}
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/**
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* Returns server URL
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*
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* @return string server URL
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*/
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public function getServerUrl()
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{
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if (!isset($this->_serverUrl)) {
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$this->_serverUrl = $this->view->serverUrl();
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}
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return $this->_serverUrl;
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}
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// Helper methods:
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/**
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* Escapes string for XML usage
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*
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* @param string $string string to escape
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* @return string escaped string
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*/
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protected function _xmlEscape($string)
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{
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// TODO: remove check when minimum PHP version is >= 5.2.3
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if (version_compare(PHP_VERSION, '5.2.3', '>=')) {
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// do not encode existing HTML entities
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return htmlspecialchars($string, ENT_QUOTES, 'UTF-8', false);
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} else {
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$string = preg_replace('/&(?!(?:#\d++|[a-z]++);)/ui', '&', $string);
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$string = str_replace(array('<', '>', '\'', '"'), array('<', '>', ''', '"'), $string);
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return $string;
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}
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}
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// Public methods:
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/**
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* Returns an escaped absolute URL for the given page
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*
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* @param Zend_Navigation_Page $page page to get URL from
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* @return string
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*/
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public function url(Zend_Navigation_Page $page)
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{
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$href = $page->getHref();
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if (!isset($href{0})) {
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// no href
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return '';
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} elseif ($href{0} == '/') {
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// href is relative to root; use serverUrl helper
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$url = $this->getServerUrl() . $href;
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} elseif (preg_match('/^[a-z]+:/im', (string) $href)) {
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// scheme is given in href; assume absolute URL already
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$url = (string) $href;
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} else {
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// href is relative to current document; use url helpers
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$url = $this->getServerUrl()
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. rtrim($this->view->url(), '/') . '/'
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. $href;
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}
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return $this->_xmlEscape($url);
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}
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/**
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* Returns a DOMDocument containing the Sitemap XML for the given container
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*
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* @param Zend_Navigation_Container $container [optional] container to get
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* breadcrumbs from, defaults
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* to what is registered in the
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* helper
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* @return DOMDocument DOM representation of the
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* container
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* @throws Zend_View_Exception if schema validation is on
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* and the sitemap is invalid
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* according to the sitemap
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* schema, or if sitemap
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* validators are used and the
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* loc element fails validation
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*/
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public function getDomSitemap(Zend_Navigation_Container $container = null)
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{
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if (null === $container) {
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$container = $this->getContainer();
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}
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// check if we should validate using our own validators
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if ($this->getUseSitemapValidators()) {
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require_once 'Zend/Validate/Sitemap/Changefreq.php';
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require_once 'Zend/Validate/Sitemap/Lastmod.php';
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require_once 'Zend/Validate/Sitemap/Loc.php';
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require_once 'Zend/Validate/Sitemap/Priority.php';
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// create validators
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$locValidator = new Zend_Validate_Sitemap_Loc();
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$lastmodValidator = new Zend_Validate_Sitemap_Lastmod();
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$changefreqValidator = new Zend_Validate_Sitemap_Changefreq();
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$priorityValidator = new Zend_Validate_Sitemap_Priority();
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}
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// create document
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$dom = new DOMDocument('1.0', 'UTF-8');
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$dom->formatOutput = $this->getFormatOutput();
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// ...and urlset (root) element
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$urlSet = $dom->createElementNS(self::SITEMAP_NS, 'urlset');
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$dom->appendChild($urlSet);
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// create iterator
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$iterator = new RecursiveIteratorIterator($container,
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RecursiveIteratorIterator::SELF_FIRST);
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$maxDepth = $this->getMaxDepth();
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if (is_int($maxDepth)) {
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$iterator->setMaxDepth($maxDepth);
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}
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$minDepth = $this->getMinDepth();
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if (!is_int($minDepth) || $minDepth < 0) {
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$minDepth = 0;
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}
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// iterate container
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foreach ($iterator as $page) {
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if ($iterator->getDepth() < $minDepth || !$this->accept($page)) {
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// page should not be included
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continue;
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}
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// get absolute url from page
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if (!$url = $this->url($page)) {
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// skip page if it has no url (rare case)
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continue;
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}
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// create url node for this page
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$urlNode = $dom->createElementNS(self::SITEMAP_NS, 'url');
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$urlSet->appendChild($urlNode);
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if ($this->getUseSitemapValidators() &&
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!$locValidator->isValid($url)) {
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require_once 'Zend/View/Exception.php';
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throw new Zend_View_Exception(sprintf(
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'Encountered an invalid URL for Sitemap XML: "%s"',
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$url));
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}
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// put url in 'loc' element
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||
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$urlNode->appendChild($dom->createElementNS(self::SITEMAP_NS,
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'loc', $url));
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||
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// add 'lastmod' element if a valid lastmod is set in page
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||
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if (isset($page->lastmod)) {
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$lastmod = strtotime((string) $page->lastmod);
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||
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||
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// prevent 1970-01-01...
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||
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if ($lastmod !== false) {
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||
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$lastmod = date('c', $lastmod);
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||
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}
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|
|
if (!$this->getUseSitemapValidators() ||
|
||
|
|
$lastmodValidator->isValid($lastmod)) {
|
||
|
|
$urlNode->appendChild(
|
||
|
|
$dom->createElementNS(self::SITEMAP_NS, 'lastmod',
|
||
|
|
$lastmod)
|
||
|
|
);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// add 'changefreq' element if a valid changefreq is set in page
|
||
|
|
if (isset($page->changefreq)) {
|
||
|
|
$changefreq = $page->changefreq;
|
||
|
|
if (!$this->getUseSitemapValidators() ||
|
||
|
|
$changefreqValidator->isValid($changefreq)) {
|
||
|
|
$urlNode->appendChild(
|
||
|
|
$dom->createElementNS(self::SITEMAP_NS, 'changefreq',
|
||
|
|
$changefreq)
|
||
|
|
);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// add 'priority' element if a valid priority is set in page
|
||
|
|
if (isset($page->priority)) {
|
||
|
|
$priority = $page->priority;
|
||
|
|
if (!$this->getUseSitemapValidators() ||
|
||
|
|
$priorityValidator->isValid($priority)) {
|
||
|
|
$urlNode->appendChild(
|
||
|
|
$dom->createElementNS(self::SITEMAP_NS, 'priority',
|
||
|
|
$priority)
|
||
|
|
);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// validate using schema if specified
|
||
|
|
if ($this->getUseSchemaValidation()) {
|
||
|
|
if (!@$dom->schemaValidate(self::SITEMAP_XSD)) {
|
||
|
|
require_once 'Zend/View/Exception.php';
|
||
|
|
throw new Zend_View_Exception(sprintf(
|
||
|
|
'Sitemap is invalid according to XML Schema at "%s"',
|
||
|
|
self::SITEMAP_XSD));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return $dom;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Zend_View_Helper_Navigation_Helper:
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Renders helper
|
||
|
|
*
|
||
|
|
* Implements {@link Zend_View_Helper_Navigation_Helper::render()}.
|
||
|
|
*
|
||
|
|
* @param Zend_Navigation_Container $container [optional] container to
|
||
|
|
* render. Default is to
|
||
|
|
* render the container
|
||
|
|
* registered in the helper.
|
||
|
|
* @return string helper output
|
||
|
|
*/
|
||
|
|
public function render(Zend_Navigation_Container $container = null)
|
||
|
|
{
|
||
|
|
$dom = $this->getDomSitemap($container);
|
||
|
|
|
||
|
|
$xml = $this->getUseXmlDeclaration() ?
|
||
|
|
$dom->saveXML() :
|
||
|
|
$dom->saveXML($dom->documentElement);
|
||
|
|
|
||
|
|
return rtrim($xml, PHP_EOL);
|
||
|
|
}
|
||
|
|
}
|