includes/site/SiteExporter.php

   1 <?php
   2
   3 /**
   4  * Utility for exporting site entries to XML.
   5  * For the output file format, see docs/sitelist.txt and docs/sitelist-1.0.xsd.
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License along
  18  * with this program; if not, write to the Free Software Foundation, Inc.,
  19  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  20  * http://www.gnu.org/copyleft/gpl.html
  21  *
  22  * @since 1.25
  23  *
  24  * @file
  25  * @ingroup Site
  26  *
  27  * @license GNU GPL v2+
  28  * @author Daniel Kinzler
  29  */
  30 class SiteExporter {
  31
  32         /**
  33          * @var resource
  34          */
  35         private $sink;
  36
  37         /**
  38          * @param resource $sink A file handle open for writing
  39          */
  40         public function __construct( $sink ) {
  41                 if ( !is_resource( $sink ) || get_resource_type( $sink ) !== 'stream' ) {
  42                         throw new InvalidArgumentException( '$sink must be a file handle' );
  43                 }
  44
  45                 $this->sink = $sink;
  46         }
  47
  48         /**
  49          * Writes a <site> tag for each Site object in $sites, and encloses the entire list
  50          * between <sites> tags.
  51          *
  52          * @param Site[]|SiteList $sites
  53          */
  54         public function exportSites( $sites ) {
  55                 $attributes = array(
  56                         'version' => '1.0',
  57                         'xmlns' => 'http://www.mediawiki.org/xml/sitelist-1.0/',
  58                 );
  59
  60                 fwrite( $this->sink, Xml::openElement( 'sites', $attributes ) . "\n" );
  61
  62                 foreach ( $sites as $site ) {
  63                         $this->exportSite( $site );
  64                 }
  65
  66                 fwrite( $this->sink, Xml::closeElement( 'sites' ) . "\n" );
  67                 fflush( $this->sink );
  68         }
  69
  70         /**
  71          * Writes a <site> tag representing the given Site object.
  72          *
  73          * @param Site $site
  74          */
  75         private function exportSite( Site $site ) {
  76                 if ( $site->getType() !== Site::TYPE_UNKNOWN ) {
  77                         $siteAttr = array( 'type' => $site->getType() );
  78                 } else {
  79                         $siteAttr = null;
  80                 }
  81
  82                 fwrite( $this->sink, "\t" . Xml::openElement( 'site', $siteAttr ) . "\n" );
  83
  84                 fwrite( $this->sink, "\t\t" . Xml::element( 'globalid', null, $site->getGlobalId() ) . "\n" );
  85
  86                 if ( $site->getGroup() !== Site::GROUP_NONE ) {
  87                         fwrite( $this->sink, "\t\t" . Xml::element( 'group', null, $site->getGroup() ) . "\n" );
  88                 }
  89
  90                 if ( $site->getSource() !== Site::SOURCE_LOCAL ) {
  91                         fwrite( $this->sink, "\t\t" . Xml::element( 'source', null, $site->getSource() ) . "\n" );
  92                 }
  93
  94                 if ( $site->shouldForward() ) {
  95                         fwrite( $this->sink, "\t\t" . Xml::element( 'forward', null, '' ) . "\n" );
  96                 }
  97
  98                 foreach ( $site->getAllPaths() as $type => $path ) {
  99                         fwrite( $this->sink, "\t\t" . Xml::element( 'path', array( 'type' => $type ), $path ) . "\n" );
 100                 }
 101
 102                 foreach ( $site->getLocalIds() as $type => $ids ) {
 103                         foreach ( $ids as $id ) {
 104                                 fwrite( $this->sink, "\t\t" . Xml::element( 'localid', array( 'type' => $type ), $id ) . "\n" );
 105                         }
 106                 }
 107
 108                 // @todo: export <data>
 109                 // @todo: export <config>
 110
 111                 fwrite( $this->sink, "\t" . Xml::closeElement( 'site' ) . "\n" );
 112         }
 113
 114 }