1: <?php
  2: /*
  3:  * Simpletools Framework.
  4:  * Copyright (c) 2009, Marcin Rosinski. (http://www.getsimpletools.com)
  5:  * All rights reserved.
  6:  * 
  7:  * LICENCE
  8:  *
  9:  * Redistribution and use in source and binary forms, with or without modification, 
 10:  * are permitted provided that the following conditions are met:
 11:  *
 12:  * -    Redistributions of source code must retain the above copyright notice, 
 13:  *      this list of conditions and the following disclaimer.
 14:  * 
 15:  * -    Redistributions in binary form must reproduce the above copyright notice, 
 16:  *      this list of conditions and the following disclaimer in the documentation and/or other 
 17:  *      materials provided with the distribution.
 18:  * 
 19:  * -    Neither the name of the Simpletools nor the names of its contributors may be used to 
 20:  *      endorse or promote products derived from this software without specific prior written permission.
 21:  * 
 22:  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR 
 23:  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY 
 24:  * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR 
 25:  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 
 26:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 
 27:  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER 
 28:  * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF 
 29:  * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 30:  * 
 31:  * @framework       Simpletools
 32:  * @description     Secure connections handler
 33:  * @copyright       Copyright (c) 2009 Marcin Rosinski. (http://www.getsimpletools.com)
 34:  * @license         http://www.opensource.org/licenses/bsd-license.php - BSD
 35:  * 
 36:  */
 37:     namespace Simpletools\Http;
 38:     
 39:     use Simpletools\Http\Ssl;
 40: 
 41:     class Ssl
 42:     {
 43:         private $_loop                  = false;
 44:         protected static $_instance     = null;
 45:         
 46:         public static function &getInstance()
 47:         {
 48:              if (empty(self::$_instance)) 
 49:              {
 50:                  self::$_instance = new Ssl();
 51:              }
 52:              
 53:              return self::$_instance;                   
 54:         }
 55:                 
 56:         public function https($flag=true,$redirectionMethod=301)
 57:         {
 58:             if(strtolower($flag) !== 'allowed')
 59:             {
 60:                 $url = $_SERVER['SERVER_NAME'].$_SERVER['REQUEST_URI'];
 61:                 
 62:                 if(isset($_SERVER['HTTP_X_FORWARDED_PROTO'])) 
 63:                 {
 64:                     $https = ($_SERVER['HTTP_X_FORWARDED_PROTO']=='https') ? true : false;
 65:                 }
 66:                 else
 67:                 {
 68:                     $https = (isset($_SERVER['HTTPS']) && $_SERVER['HTTPS']!='off') ? true : false;
 69:                 }
 70:                 
 71:                 if(!$this->_loop && $flag)
 72:                 {
 73:                     $this->_loop = 'https';
 74:                 }
 75:                 else if(!$this->_loop)
 76:                 {
 77:                     $this->_loop = 'http';
 78:                 }
 79:                 
 80:                 if($flag && (!$https))
 81:                 {
 82:                     if($this->_loop != 'http')
 83:                     {
 84:                         $url = 'https://'.$url;
 85:                         header('Location: '.$url,true,$redirectionMethod);
 86:                         exit;
 87:                     }
 88:                 }
 89:                 else if(!$flag && $https)
 90:                 {
 91:                     if($this->_loop != 'https')
 92:                     {
 93:                         $url = 'http://'.$url;
 94:                         header('Location: '.$url,true,$redirectionMethod);
 95:                         exit;
 96:                     }
 97:                 }
 98:             }
 99:         }       
100:     }
101:     
102: ?>