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| 1 | <?php |
| 2 | /** |
| 3 | * Class for blocks composed from multiple blocks. |
| 4 | * |
| 5 | * @license GPL-2.0-or-later |
| 6 | * @file |
| 7 | */ |
| 8 | |
| 9 | namespace MediaWiki\Block; |
| 10 | |
| 11 | use InvalidArgumentException; |
| 12 | use MediaWiki\Message\Message; |
| 13 | use MediaWiki\Title\Title; |
| 14 | use MediaWiki\User\UserIdentity; |
| 15 | |
| 16 | /** |
| 17 | * Multiple Block class. |
| 18 | * |
| 19 | * Multiple blocks exist to enforce restrictions from more than one block, if several |
| 20 | * blocks apply to a user/IP. Multiple blocks are created temporarily on enforcement. |
| 21 | * |
| 22 | * @since 1.34 |
| 23 | */ |
| 24 | class CompositeBlock extends AbstractBlock { |
| 25 | /** @var AbstractBlock[] */ |
| 26 | private $originalBlocks; |
| 27 | |
| 28 | /** |
| 29 | * Helper method for merging multiple blocks into a composite block. |
| 30 | * @param AbstractBlock ...$blocks |
| 31 | * @return self |
| 32 | */ |
| 33 | public static function createFromBlocks( AbstractBlock ...$blocks ): self { |
| 34 | $originalBlocks = []; |
| 35 | foreach ( $blocks as $block ) { |
| 36 | if ( $block instanceof self ) { |
| 37 | $originalBlocks = array_merge( $originalBlocks, $block->getOriginalBlocks() ); |
| 38 | } else { |
| 39 | $originalBlocks[] = $block; |
| 40 | } |
| 41 | } |
| 42 | if ( !$originalBlocks ) { |
| 43 | throw new InvalidArgumentException( 'No blocks given' ); |
| 44 | } |
| 45 | return new self( [ |
| 46 | 'target' => $originalBlocks[0]->target, |
| 47 | 'reason' => new Message( 'blockedtext-composite-reason' ), |
| 48 | 'originalBlocks' => $originalBlocks, |
| 49 | ] ); |
| 50 | } |
| 51 | |
| 52 | /** |
| 53 | * Create a new block with specified parameters on a user, IP or IP range. |
| 54 | * |
| 55 | * @param array $options Parameters of the block, with options supported by |
| 56 | * `AbstractBlock::__construct`, and also: |
| 57 | * - originalBlocks: (Block[]) Blocks that this block is composed from |
| 58 | */ |
| 59 | public function __construct( array $options = [] ) { |
| 60 | parent::__construct( $options ); |
| 61 | |
| 62 | $defaults = [ |
| 63 | 'originalBlocks' => [], |
| 64 | ]; |
| 65 | |
| 66 | $options += $defaults; |
| 67 | |
| 68 | $this->originalBlocks = $options[ 'originalBlocks' ]; |
| 69 | |
| 70 | $this->setHideName( $this->propHasValue( 'hideName', true ) ); |
| 71 | $this->setHideBlock( $this->propHasValue( 'hideBlock', true ) ); |
| 72 | $this->isHardblock( $this->propHasValue( 'isHardblock', true ) ); |
| 73 | $this->isSitewide( $this->propHasValue( 'isSitewide', true ) ); |
| 74 | $this->isEmailBlocked( $this->propHasValue( 'blockEmail', true ) ); |
| 75 | $this->isCreateAccountBlocked( $this->propHasValue( 'blockCreateAccount', true ) ); |
| 76 | $this->isUsertalkEditAllowed( !$this->propHasValue( 'allowUsertalk', false ) ); |
| 77 | } |
| 78 | |
| 79 | /** |
| 80 | * Determine whether any original blocks have a particular property set to a |
| 81 | * particular value. |
| 82 | * |
| 83 | * @param string $prop |
| 84 | * @param mixed $value |
| 85 | * @return bool At least one block has the property set to the value |
| 86 | */ |
| 87 | private function propHasValue( $prop, $value ) { |
| 88 | foreach ( $this->originalBlocks as $block ) { |
| 89 | if ( $block->$prop == $value ) { |
| 90 | return true; |
| 91 | } |
| 92 | } |
| 93 | return false; |
| 94 | } |
| 95 | |
| 96 | /** |
| 97 | * Determine whether any original blocks have a particular method returning a |
| 98 | * particular value. |
| 99 | * |
| 100 | * @param string $method |
| 101 | * @param mixed $value |
| 102 | * @param mixed ...$params |
| 103 | * @return bool At least one block has the method returning the value |
| 104 | */ |
| 105 | private function methodReturnsValue( $method, $value, ...$params ) { |
| 106 | foreach ( $this->originalBlocks as $block ) { |
| 107 | if ( $block->$method( ...$params ) == $value ) { |
| 108 | return true; |
| 109 | } |
| 110 | } |
| 111 | return false; |
| 112 | } |
| 113 | |
| 114 | /** |
| 115 | * Get the original blocks from which this block is composed |
| 116 | * |
| 117 | * @since 1.34 |
| 118 | * @return AbstractBlock[] |
| 119 | */ |
| 120 | public function getOriginalBlocks() { |
| 121 | return $this->originalBlocks; |
| 122 | } |
| 123 | |
| 124 | /** |
| 125 | * Create a clone of the object with the original blocks array set to |
| 126 | * something else. |
| 127 | * |
| 128 | * @since 1.42 |
| 129 | * @param AbstractBlock[] $blocks |
| 130 | * @return self |
| 131 | */ |
| 132 | public function withOriginalBlocks( array $blocks ) { |
| 133 | $clone = clone $this; |
| 134 | $clone->originalBlocks = $blocks; |
| 135 | return $clone; |
| 136 | } |
| 137 | |
| 138 | public function toArray(): array { |
| 139 | return $this->originalBlocks; |
| 140 | } |
| 141 | |
| 142 | /** |
| 143 | * @inheritDoc |
| 144 | */ |
| 145 | public function getTimestamp(): string { |
| 146 | $minStart = null; |
| 147 | foreach ( $this->originalBlocks as $block ) { |
| 148 | $startTime = $block->getTimestamp(); |
| 149 | if ( $minStart === null || $startTime === '' || $startTime < $minStart ) { |
| 150 | $minStart = $startTime; |
| 151 | } |
| 152 | } |
| 153 | return $minStart ?? ''; |
| 154 | } |
| 155 | |
| 156 | /** |
| 157 | * @inheritDoc |
| 158 | */ |
| 159 | public function getExpiry(): string { |
| 160 | $maxExpiry = null; |
| 161 | foreach ( $this->originalBlocks as $block ) { |
| 162 | $expiry = $block->getExpiry(); |
| 163 | if ( $maxExpiry === null || $expiry === '' || $expiry > $maxExpiry ) { |
| 164 | $maxExpiry = $expiry; |
| 165 | } |
| 166 | } |
| 167 | return $maxExpiry ?? ''; |
| 168 | } |
| 169 | |
| 170 | /** |
| 171 | * @inheritDoc |
| 172 | */ |
| 173 | public function getIdentifier( $wikiId = self::LOCAL ) { |
| 174 | $identifier = []; |
| 175 | foreach ( $this->originalBlocks as $block ) { |
| 176 | $identifier[] = $block->getIdentifier( $wikiId ); |
| 177 | } |
| 178 | return $identifier; |
| 179 | } |
| 180 | |
| 181 | /** |
| 182 | * @inheritDoc |
| 183 | * |
| 184 | * Determines whether the CompositeBlock applies to a right by checking |
| 185 | * whether the original blocks apply to that right. Each block can report |
| 186 | * true (applies), false (does not apply) or null (unsure). Then: |
| 187 | * - If any original blocks apply, this block applies |
| 188 | * - If no original blocks apply but any are unsure, this block is unsure |
| 189 | * - If all blocks do not apply, this block does not apply |
| 190 | */ |
| 191 | public function appliesToRight( $right ) { |
| 192 | $isUnsure = false; |
| 193 | |
| 194 | foreach ( $this->originalBlocks as $block ) { |
| 195 | $appliesToRight = $block->appliesToRight( $right ); |
| 196 | |
| 197 | if ( $appliesToRight ) { |
| 198 | return true; |
| 199 | } elseif ( $appliesToRight === null ) { |
| 200 | $isUnsure = true; |
| 201 | } |
| 202 | } |
| 203 | |
| 204 | return $isUnsure ? null : false; |
| 205 | } |
| 206 | |
| 207 | /** |
| 208 | * @inheritDoc |
| 209 | */ |
| 210 | public function appliesToUsertalk( ?Title $usertalk = null ): bool { |
| 211 | return $this->methodReturnsValue( __FUNCTION__, true, $usertalk ); |
| 212 | } |
| 213 | |
| 214 | /** |
| 215 | * @inheritDoc |
| 216 | */ |
| 217 | public function appliesToTitle( Title $title ) { |
| 218 | return $this->methodReturnsValue( __FUNCTION__, true, $title ); |
| 219 | } |
| 220 | |
| 221 | /** |
| 222 | * @inheritDoc |
| 223 | */ |
| 224 | public function appliesToNamespace( $ns ) { |
| 225 | return $this->methodReturnsValue( __FUNCTION__, true, $ns ); |
| 226 | } |
| 227 | |
| 228 | /** |
| 229 | * @inheritDoc |
| 230 | */ |
| 231 | public function appliesToPage( $pageId ) { |
| 232 | return $this->methodReturnsValue( __FUNCTION__, true, $pageId ); |
| 233 | } |
| 234 | |
| 235 | /** |
| 236 | * @inheritDoc |
| 237 | */ |
| 238 | public function appliesToPasswordReset() { |
| 239 | return $this->methodReturnsValue( __FUNCTION__, true ); |
| 240 | } |
| 241 | |
| 242 | /** |
| 243 | * @inheritDoc |
| 244 | */ |
| 245 | public function getBy( $wikiId = self::LOCAL ): int { |
| 246 | $this->assertWiki( $wikiId ); |
| 247 | return 0; |
| 248 | } |
| 249 | |
| 250 | /** |
| 251 | * @inheritDoc |
| 252 | */ |
| 253 | public function getByName() { |
| 254 | return ''; |
| 255 | } |
| 256 | |
| 257 | /** |
| 258 | * @inheritDoc |
| 259 | */ |
| 260 | public function getBlocker(): ?UserIdentity { |
| 261 | return null; |
| 262 | } |
| 263 | } |