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 <?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_View
  * @subpackage Helper
  * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
  * @license    http://framework.zend.com/license/new-bsd     New BSD License
  * @version    $Id$
  */
 
 /**
  * Helper for returning the current server URL (optionally with request URI)
  *
  * @category   Zend
  * @package    Zend_View
  * @subpackage Helper
  * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
  * @license    http://framework.zend.com/license/new-bsd     New BSD License
  */
 class Zend_View_Helper_ServerUrl
 {
     /**
      * Scheme
      *
      * @var string
      */
     protected $_scheme;
 
     /**
      * Host (including port)
      *
      * @var string
      */
     protected $_host;
 
     /**
      * Constructor
      *
      * @return void
      */
     public function __construct()
     {
         switch (true) {
             case (isset($_SERVER['HTTPS']) && ($_SERVER['HTTPS'] == 'on' || $_SERVER['HTTPS'] === true)):
             case (isset($_SERVER['HTTP_SCHEME']) && ($_SERVER['HTTP_SCHEME'] == 'https')):
             case (isset($_SERVER['SERVER_PORT']) && ($_SERVER['SERVER_PORT'] == 443)):
                 $scheme = 'https';
                 break;
             default:
             $scheme = 'http';
         }
         $this->setScheme($scheme);
 
         if (isset($_SERVER['HTTP_HOST']) && !empty($_SERVER['HTTP_HOST'])) {
             $this->setHost($_SERVER['HTTP_HOST']);
         } else if (isset($_SERVER['SERVER_NAME'], $_SERVER['SERVER_PORT'])) {
             $name = $_SERVER['SERVER_NAME'];
             $port = $_SERVER['SERVER_PORT'];
 
             if (($scheme == 'http' && $port == 80) ||
                 ($scheme == 'https' && $port == 443)) {
                 $this->setHost($name);
             } else {
                 $this->setHost($name . ':' . $port);
             }
         }
     }
 
     /**
      * View helper entry point:
      * Returns the current host's URL like http://site.com
      *
      * @param  string|boolean $requestUri  [optional] if true, the request URI
      *                                     found in $_SERVER will be appended
      *                                     as a path. If a string is given, it
      *                                     will be appended as a path. Default
      *                                     is to not append any path.
      * @return string                      server url
      */
     public function serverUrl($requestUri = null)
     {
         if ($requestUri === true) {
             $path = $_SERVER['REQUEST_URI'];
         } else if (is_string($requestUri)) {
             $path = $requestUri;
         } else {
             $path = '';
         }
 
         return $this->getScheme() . '://' . $this->getHost() . $path;
     }
 
     /**
      * Returns host
      *
      * @return string  host
      */
     public function getHost()
     {
         return $this->_host;
     }
 
     /**
      * Sets host
      *
      * @param  string $host                new host
      * @return Zend_View_Helper_ServerUrl  fluent interface, returns self
      */
     public function setHost($host)
     {
         $this->_host = $host;
         return $this;
     }
 
     /**
      * Returns scheme (typically http or https)
      *
      * @return string  scheme (typically http or https)
      */
     public function getScheme()
     {
         return $this->_scheme;
     }
 
     /**
      * Sets scheme (typically http or https)
      *
      * @param  string $scheme              new scheme (typically http or https)
      * @return Zend_View_Helper_ServerUrl  fluent interface, returns self
      */
     public function setScheme($scheme)
     {
         $this->_scheme = $scheme;
         return $this;
     }
 }