includes/api/ApiFormatWddx.php

   1 <?php
   2 /**
   3  *
   4  *
   5  * Created on Oct 22, 2006
   6  *
   7  * Copyright © 2006 Yuri Astrakhan "<Firstname><Lastname>@gmail.com"
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License along
  20  * with this program; if not, write to the Free Software Foundation, Inc.,
  21  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  22  * http://www.gnu.org/copyleft/gpl.html
  23  *
  24  * @file
  25  */
  26
  27 /**
  28  * API WDDX output formatter
  29  * @ingroup API
  30  */
  31 class ApiFormatWddx extends ApiFormatBase {
  32
  33         public function getMimeType() {
  34                 return 'text/xml';
  35         }
  36
  37         public function execute() {
  38                 // Some versions of PHP have a broken wddx_serialize_value, see
  39                 // PHP bug 45314. Test encoding an affected character (U+00A0)
  40                 // to avoid this.
  41                 $expected =
  42                         "<wddxPacket version='1.0'><header/><data><string>\xc2\xa0</string></data></wddxPacket>";
  43                 if ( function_exists( 'wddx_serialize_value' )
  44                         && !$this->getIsHtml()
  45                         && wddx_serialize_value( "\xc2\xa0" ) == $expected
  46                 ) {
  47                         $this->printText( wddx_serialize_value( $this->getResultData() ) );
  48                 } else {
  49                         // Don't do newlines and indentation if we weren't asked
  50                         // for pretty output
  51                         $nl = ( $this->getIsHtml() ? "\n" : '' );
  52                         $indstr = ' ';
  53                         $this->printText( "<?xml version=\"1.0\"?>$nl" );
  54                         $this->printText( "<wddxPacket version=\"1.0\">$nl" );
  55                         $this->printText( "$indstr<header/>$nl" );
  56                         $this->printText( "$indstr<data>$nl" );
  57                         $this->slowWddxPrinter( $this->getResultData(), 4 );
  58                         $this->printText( "$indstr</data>$nl" );
  59                         $this->printText( "</wddxPacket>$nl" );
  60                 }
  61         }
  62
  63         /**
  64          * Recursively go through the object and output its data in WDDX format.
  65          * @param mixed $elemValue
  66          * @param int $indent
  67          */
  68         function slowWddxPrinter( $elemValue, $indent = 0 ) {
  69                 $indstr = ( $this->getIsHtml() ? str_repeat( ' ', $indent ) : '' );
  70                 $indstr2 = ( $this->getIsHtml() ? str_repeat( ' ', $indent + 2 ) : '' );
  71                 $nl = ( $this->getIsHtml() ? "\n" : '' );
  72                 if ( is_array( $elemValue ) ) {
  73                         // Check whether we've got an associative array (<struct>)
  74                         // or a regular array (<array>)
  75                         $cnt = count( $elemValue );
  76                         if ( $cnt == 0 || array_keys( $elemValue ) === range( 0, $cnt - 1 ) ) {
  77                                 // Regular array
  78                                 $this->printText( $indstr . Xml::element( 'array', array(
  79                                         'length' => $cnt ), null ) . $nl );
  80                                 foreach ( $elemValue as $subElemValue ) {
  81                                         $this->slowWddxPrinter( $subElemValue, $indent + 2 );
  82                                 }
  83                                 $this->printText( "$indstr</array>$nl" );
  84                         } else {
  85                                 // Associative array (<struct>)
  86                                 $this->printText( "$indstr<struct>$nl" );
  87                                 foreach ( $elemValue as $subElemName => $subElemValue ) {
  88                                         $this->printText( $indstr2 . Xml::element( 'var', array(
  89                                                 'name' => $subElemName
  90                                         ), null ) . $nl );
  91                                         $this->slowWddxPrinter( $subElemValue, $indent + 4 );
  92                                         $this->printText( "$indstr2</var>$nl" );
  93                                 }
  94                                 $this->printText( "$indstr</struct>$nl" );
  95                         }
  96                 } elseif ( is_int( $elemValue ) || is_float( $elemValue ) ) {
  97                         $this->printText( $indstr . Xml::element( 'number', null, $elemValue ) . $nl );
  98                 } elseif ( is_string( $elemValue ) ) {
  99                         $this->printText( $indstr . Xml::element( 'string', null, $elemValue ) . $nl );
 100                 } elseif ( is_bool( $elemValue ) ) {
 101                         $this->printText( $indstr . Xml::element( 'boolean',
 102                                 array( 'value' => $elemValue ? 'true' : 'false' ) ) . $nl
 103                         );
 104                 } else {
 105                         ApiBase::dieDebug( __METHOD__, 'Unknown type ' . gettype( $elemValue ) );
 106                 }
 107         }
 108
 109         public function getDescription() {
 110                 return 'Output data in WDDX format' . parent::getDescription();
 111         }
 112 }