includes/block/CompositeBlock.php

   1 <?php
   2 /**
   3  * Class for blocks composed from multiple blocks.
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18  * http://www.gnu.org/copyleft/gpl.html
  19  *
  20  * @file
  21  */
  22
  23 namespace MediaWiki\Block;
  24
  25 use IContextSource;
  26 use Title;
  27
  28 /**
  29  * Multiple Block class.
  30  *
  31  * Multiple blocks exist to enforce restrictions from more than one block, if several
  32  * blocks apply to a user/IP. Multiple blocks are created temporarily on enforcement.
  33  *
  34  * @since 1.34
  35  */
  36 class CompositeBlock extends AbstractBlock {
  37         /** @var AbstractBlock[] */
  38         private $originalBlocks;
  39
  40         /**
  41          * Create a new block with specified parameters on a user, IP or IP range.
  42          *
  43          * @param array $options Parameters of the block:
  44          *     originalBlocks Block[] Blocks that this block is composed from
  45          */
  46         public function __construct( array $options = [] ) {
  47                 parent::__construct( $options );
  48
  49                 $defaults = [
  50                         'originalBlocks' => [],
  51                 ];
  52
  53                 $options += $defaults;
  54
  55                 $this->originalBlocks = $options[ 'originalBlocks' ];
  56
  57                 $this->setHideName( $this->propHasValue( 'mHideName', true ) );
  58                 $this->isSitewide( $this->propHasValue( 'isSitewide', true ) );
  59                 $this->isEmailBlocked( $this->propHasValue( 'mBlockEmail', true ) );
  60                 $this->isCreateAccountBlocked( $this->propHasValue( 'blockCreateAccount', true ) );
  61                 $this->isUsertalkEditAllowed( !$this->propHasValue( 'allowUsertalk', false ) );
  62         }
  63
  64         /**
  65          * Determine whether any original blocks have a particular property set to a
  66          * particular value.
  67          *
  68          * @param string $prop
  69          * @param mixed $value
  70          * @return bool At least one block has the property set to the value
  71          */
  72         private function propHasValue( $prop, $value ) {
  73                 foreach ( $this->originalBlocks as $block ) {
  74                         if ( $block->$prop == $value ) {
  75                                 return true;
  76                         }
  77                 }
  78                 return false;
  79         }
  80
  81         /**
  82          * Determine whether any original blocks have a particular method returning a
  83          * particular value.
  84          *
  85          * @param string $method
  86          * @param mixed $value
  87          * @param mixed ...$params
  88          * @return bool At least one block has the method returning the value
  89          */
  90         private function methodReturnsValue( $method, $value, ...$params ) {
  91                 foreach ( $this->originalBlocks as $block ) {
  92                         if ( $block->$method( ...$params ) == $value ) {
  93                                 return true;
  94                         }
  95                 }
  96                 return false;
  97         }
  98
  99         /**
 100          * Get the original blocks from which this block is composed
 101          *
 102          * @since 1.34
 103          * @return AbstractBlock[]
 104          */
 105         public function getOriginalBlocks() {
 106                 return $this->originalBlocks;
 107         }
 108
 109         /**
 110          * @inheritDoc
 111          */
 112         public function getExpiry() {
 113                 $maxExpiry = null;
 114                 foreach ( $this->originalBlocks as $block ) {
 115                         $expiry = $block->getExpiry();
 116                         if ( $maxExpiry === null || $expiry === '' || $expiry > $maxExpiry ) {
 117                                 $maxExpiry = $expiry;
 118                         }
 119                 }
 120                 return $maxExpiry;
 121         }
 122
 123         /**
 124          * @inheritDoc
 125          */
 126         public function getPermissionsError( IContextSource $context ) {
 127                 $params = $this->getBlockErrorParams( $context );
 128
 129                 $msg = 'blockedtext-composite';
 130
 131                 array_unshift( $params, $msg );
 132
 133                 return $params;
 134         }
 135
 136         /**
 137          * @inheritDoc
 138          */
 139         public function appliesToRight( $right ) {
 140                 return $this->methodReturnsValue( __FUNCTION__, true, $right );
 141         }
 142
 143         /**
 144          * @inheritDoc
 145          */
 146         public function appliesToUsertalk( Title $usertalk = null ) {
 147                 return $this->methodReturnsValue( __FUNCTION__, true, $usertalk );
 148         }
 149
 150         /**
 151          * @inheritDoc
 152          */
 153         public function appliesToTitle( Title $title ) {
 154                 return $this->methodReturnsValue( __FUNCTION__, true, $title );
 155         }
 156
 157         /**
 158          * @inheritDoc
 159          */
 160         public function appliesToNamespace( $ns ) {
 161                 return $this->methodReturnsValue( __FUNCTION__, true, $ns );
 162         }
 163
 164         /**
 165          * @inheritDoc
 166          */
 167         public function appliesToPage( $pageId ) {
 168                 return $this->methodReturnsValue( __FUNCTION__, true, $pageId );
 169         }
 170
 171         /**
 172          * @inheritDoc
 173          */
 174         public function appliesToPasswordReset() {
 175                 return $this->methodReturnsValue( __FUNCTION__, true );
 176         }
 177
 178 }