1: <?php
  2: /**
  3:  * Magento
  4:  *
  5:  * NOTICE OF LICENSE
  6:  *
  7:  * This source file is subject to the Open Software License (OSL 3.0)
  8:  * that is bundled with this package in the file LICENSE.txt.
  9:  * It is also available through the world-wide-web at this URL:
 10:  * http://opensource.org/licenses/osl-3.0.php
 11:  * If you did not receive a copy of the license and are unable to
 12:  * obtain it through the world-wide-web, please send an email
 13:  * to license@magentocommerce.com so we can send you a copy immediately.
 14:  *
 15:  * DISCLAIMER
 16:  *
 17:  * Do not edit or add to this file if you wish to upgrade Magento to newer
 18:  * versions in the future. If you wish to customize Magento for your
 19:  * needs please refer to http://www.magentocommerce.com for more information.
 20:  *
 21:  * @category    Mage
 22:  * @package     Mage_Core
 23:  * @copyright   Copyright (c) 2012 Magento Inc. (http://www.magentocommerce.com)
 24:  * @license     http://opensource.org/licenses/osl-3.0.php  Open Software License (OSL 3.0)
 25:  */
 26: 
 27: /**
 28:  * Core URL helper
 29:  *
 30:  * @category    Mage
 31:  * @package     Mage_Core
 32:  * @author      Magento Core Team <core@magentocommerce.com>
 33:  */
 34: class Mage_Core_Helper_Url extends Mage_Core_Helper_Abstract
 35: {
 36: 
 37:     /**
 38:      * Retrieve current url
 39:      *
 40:      * @return string
 41:      */
 42:     public function getCurrentUrl()
 43:     {
 44:         $request = Mage::app()->getRequest();
 45:         $port = $request->getServer('SERVER_PORT');
 46:         if ($port) {
 47:             $defaultPorts = array(
 48:                 Mage_Core_Controller_Request_Http::DEFAULT_HTTP_PORT,
 49:                 Mage_Core_Controller_Request_Http::DEFAULT_HTTPS_PORT
 50:             );
 51:             $port = (in_array($port, $defaultPorts)) ? '' : ':' . $port;
 52:         }
 53:         $url = $request->getScheme() . '://' . $request->getHttpHost() . $port . $request->getServer('REQUEST_URI');
 54:         return $url;
 55: //        return $this->_getUrl('*/*/*', array('_current' => true, '_use_rewrite' => true));
 56:     }
 57: 
 58:     /**
 59:      * Retrieve current url in base64 encoding
 60:      *
 61:      * @return string
 62:      */
 63:     public function getCurrentBase64Url()
 64:     {
 65:         return $this->urlEncode($this->getCurrentUrl());
 66:     }
 67: 
 68:     public function getEncodedUrl($url=null)
 69:     {
 70:         if (!$url) {
 71:             $url = $this->getCurrentUrl();
 72:         }
 73:         return $this->urlEncode($url);
 74:     }
 75: 
 76:     /**
 77:      * Retrieve homepage url
 78:      *
 79:      * @return string
 80:      */
 81:     public function getHomeUrl()
 82:     {
 83:         return Mage::getBaseUrl();
 84:     }
 85: 
 86:     protected function _prepareString($string)
 87:     {
 88:         $string = preg_replace('#[^0-9a-z]+#i', '-', $string);
 89:         $string = strtolower($string);
 90:         $string = trim($string, '-');
 91: 
 92:         return $string;
 93:     }
 94: 
 95:     /**
 96:      * Add request parameter into url
 97:      *
 98:      * @param  $url string
 99:      * @param  $param array( 'key' => value )
100:      * @return string
101:      */
102:     public function addRequestParam($url, $param)
103:     {
104:         $startDelimiter = (false === strpos($url,'?'))? '?' : '&';
105: 
106:         $arrQueryParams = array();
107:         foreach($param as $key=>$value) {
108:             if (is_numeric($key) || is_object($value)) {
109:                 continue;
110:             }
111: 
112:             if (is_array($value)) {
113:                 // $key[]=$value1&$key[]=$value2 ...
114:                 $arrQueryParams[] = $key . '[]=' . implode('&' . $key . '[]=', $value);
115:             } elseif (is_null($value)) {
116:                 $arrQueryParams[] = $key;
117:             } else {
118:                 $arrQueryParams[] = $key . '=' . $value;
119:             }
120:         }
121:         $url .= $startDelimiter . implode('&', $arrQueryParams);
122: 
123:         return $url;
124:     }
125: 
126:     /**
127:      * Remove request parameter from url
128:      *
129:      * @param string $url
130:      * @param string $paramKey
131:      * @return string
132:      */
133:     public function removeRequestParam($url, $paramKey, $caseSensitive = false)
134:     {
135:         $regExpression = '/\\?[^#]*?(' . preg_quote($paramKey, '/') . '\\=[^#&]*&?)/' . ($caseSensitive ? '' : 'i');
136:         while (preg_match($regExpression, $url, $mathes) != 0) {
137:             $paramString = $mathes[1];
138:             if (preg_match('/&$/', $paramString) == 0) {
139:                 $url = preg_replace('/(&|\\?)?' . preg_quote($paramString, '/') . '/', '', $url);
140:             } else {
141:                 $url = str_replace($paramString, '', $url);
142:             }
143:         }
144:         return $url;
145:     }
146: }
147: