[Sommaire] [Imprimer]

   1  <?php
   2  //
   3  // Definition of eZHTTPHeader class
   4  //
   5  // Created on: <24-Nov-2005 12:34:48 hovik>
   6  //
   7  // SOFTWARE NAME: eZ publish
   8  // SOFTWARE RELEASE: 3.9.0
   9  // BUILD VERSION: 17785
  10  // COPYRIGHT NOTICE: Copyright (C) 1999-2006 eZ systems AS
  11  // SOFTWARE LICENSE: GNU General Public License v2.0
  12  // NOTICE: >
  13  //   This program is free software; you can redistribute it and/or
  14  //   modify it under the terms of version 2.0  of the GNU General
  15  //   Public License as published by the Free Software Foundation.
  16  //
  17  //   This program is distributed in the hope that it will be useful,
  18  //   but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  //   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20  //   GNU General Public License for more details.
  21  //
  22  //   You should have received a copy of version 2.0 of the GNU General
  23  //   Public License along with this program; if not, write to the Free
  24  //   Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
  25  //   MA 02110-1301, USA.
  26  //
  27  //
  28  
  29  /*! \file ezhttpheader.php
  30  */
  31  
  32  /*!
  33    \class eZHTTPHeader ezhttpheader.php
  34    \brief The class eZHTTPHeader does
  35  
  36  */
  37  
  38  class eZHTTPHeader
  39  {
  40      /*!
  41       * \static
  42       * Returns true if the custom HTTP headers are enabled, false otherwise.
  43       * The result is cached in memory to save time on multiple invocations.
  44       */
  45      function enabled()
  46      {
  47          if ( isset( $GLOBALS['eZHTTPHeaderCustom'] ) )
  48          {
  49              return $GLOBALS['eZHTTPHeaderCustom'];
  50          }
  51  
  52          $ini =& eZINI::instance();
  53          if ( !$ini->hasVariable( 'HTTPHeaderSettings', 'CustomHeader' ) )
  54          {
  55              $GLOBALS['eZHTTPHeaderCustom'] = false;
  56          }
  57          else
  58          {
  59              $GLOBALS['eZHTTPHeaderCustom'] = $ini->variable( 'HTTPHeaderSettings', 'CustomHeader' ) == 'enabled';
  60          }
  61  
  62          return $GLOBALS['eZHTTPHeaderCustom'];
  63      }
  64  
  65      /*!
  66       \static
  67       Get Header override array by requested URI
  68      */
  69      function headerOverrideArray( $uri )
  70      {
  71          $headerArray = array();
  72  
  73          if ( !eZHTTPHeader::enabled() )
  74          {
  75              return $headerArray;
  76          }
  77  
  78          $contentView = false;
  79  
  80          include_once ( 'kernel/classes/ezurlalias.php' );
  81          $uriString = eZURLAlias::cleanURL( $uri->uriString() );
  82  
  83          // If content/view used, get path_identification_string.
  84          if ( strpos( $uriString, 'content/view/' ) === 0 )
  85          {
  86              $urlParts = explode( '/', $uriString );
  87              $nodeID = $urlParts[3];
  88              if ( !$nodeID )
  89              {
  90                  return $headerArray;
  91              }
  92  
  93              include_once ( 'kernel/classes/ezcontentobjecttreenode.php' );
  94              $resultSet = eZPersistentObject::fetchObject( eZContentObjectTreeNode::definition(),
  95                                                            array( 'path_identification_string' ),
  96                                                            array( 'node_id' => $nodeID ),
  97                                                            false );
  98              if ( !$resultSet )
  99              {
 100                  return $headerArray;
 101              }
 102  
 103              $uriString = $resultSet['path_identification_string'];
 104              $contentView = true;
 105          }
 106          else
 107          {
 108              $uriCopy = $uri;
 109              eZURLAlias::translate( $uriCopy );
 110              if ( strpos( $uriCopy->uriString(), 'content/view' ) === 0 )
 111              {
 112                  $contentView = true;
 113              }
 114          }
 115  
 116          $uriString = '/' . eZURLAlias::cleanURL( $uriString );
 117          $ini = eZINI::instance();
 118  
 119          foreach( $ini->variable( 'HTTPHeaderSettings', 'HeaderList' ) as $header )
 120          {
 121              foreach( $ini->variable( 'HTTPHeaderSettings', $header ) as $path => $value )
 122              {
 123                  $path = '/' . eZURLAlias::cleanURL( $path );
 124                  if ( strlen( $path ) == 1 &&
 125                       !$contentView &&
 126                       $uriString != '/' )
 127                  {
 128                      continue;
 129                  }
 130  
 131                  if ( strpos( $uriString, $path ) === 0 )
 132                  {
 133                      @list( $headerValue, $depth, $level ) = explode( ';', $value );
 134  
 135                      if ( $header == 'Expires' )
 136                      {
 137                          $headerValue = gmdate( 'D, d M Y H:i:s', gmmktime() + $headerValue ) . ' GMT';
 138                      }
 139  
 140                      if ( $depth === null )
 141                      {
 142                          $headerArray[$header] = $headerValue;
 143                      }
 144                      else
 145                      {
 146                          $pathLevel = count( explode( '/', $path ) );
 147                          $uriLevel = count( explode( '/', $uriString ) );
 148                          if ( $level === null )
 149                          {
 150                              if ( $uriLevel <= $pathLevel + $depth )
 151                              {
 152                                  $headerArray[$header] = $headerValue;
 153                              }
 154                          }
 155                          else
 156                          {
 157                              if ( $uriLevel <= $pathLevel + $depth &&
 158                                   $uriLevel >= $pathLevel + $level )
 159                              {
 160                                  $headerArray[$header] = $headerValue;
 161                              }
 162                          }
 163                      }
 164                  }
 165              }
 166          }
 167  
 168          return $headerArray;
 169      }
 170  }
 171  
 172  ?>