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3.07 |
1 | <?php |
2 | /** |
3 | * Class for DatabaseBlock objects to interact with the database |
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 InvalidArgumentException; |
26 | use MediaWiki\CommentStore\CommentStore; |
27 | use MediaWiki\Config\ConfigException; |
28 | use MediaWiki\Config\ServiceOptions; |
29 | use MediaWiki\Deferred\AutoCommitUpdate; |
30 | use MediaWiki\Deferred\DeferredUpdates; |
31 | use MediaWiki\HookContainer\HookContainer; |
32 | use MediaWiki\HookContainer\HookRunner; |
33 | use MediaWiki\MainConfigNames; |
34 | use MediaWiki\User\ActorStoreFactory; |
35 | use MediaWiki\User\TempUser\TempUserConfig; |
36 | use MediaWiki\User\UserFactory; |
37 | use MediaWiki\User\UserIdentity; |
38 | use MediaWiki\User\UserIdentityValue; |
39 | use Psr\Log\LoggerInterface; |
40 | use RuntimeException; |
41 | use stdClass; |
42 | use Wikimedia\IPUtils; |
43 | use Wikimedia\Rdbms\IConnectionProvider; |
44 | use Wikimedia\Rdbms\IDatabase; |
45 | use Wikimedia\Rdbms\IReadableDatabase; |
46 | use Wikimedia\Rdbms\IResultWrapper; |
47 | use Wikimedia\Rdbms\ReadOnlyMode; |
48 | use Wikimedia\Rdbms\SelectQueryBuilder; |
49 | use function array_key_exists; |
50 | |
51 | /** |
52 | * @since 1.36 |
53 | * |
54 | * @author DannyS712 |
55 | */ |
56 | class DatabaseBlockStore { |
57 | /** The old schema */ |
58 | public const SCHEMA_IPBLOCKS = 'ipblocks'; |
59 | /** The new schema */ |
60 | public const SCHEMA_BLOCK = 'block'; |
61 | /** The schema currently selected by the read stage */ |
62 | public const SCHEMA_CURRENT = 'current'; |
63 | |
64 | /** |
65 | * @internal For use by ServiceWiring |
66 | */ |
67 | public const CONSTRUCTOR_OPTIONS = [ |
68 | MainConfigNames::AutoblockExpiry, |
69 | MainConfigNames::BlockCIDRLimit, |
70 | MainConfigNames::BlockDisablesLogin, |
71 | MainConfigNames::BlockTargetMigrationStage, |
72 | MainConfigNames::PutIPinRC, |
73 | MainConfigNames::UpdateRowsPerQuery, |
74 | ]; |
75 | |
76 | /** @var string|false */ |
77 | private $wikiId; |
78 | |
79 | /** @var ServiceOptions */ |
80 | private $options; |
81 | |
82 | /** @var LoggerInterface */ |
83 | private $logger; |
84 | |
85 | /** @var ActorStoreFactory */ |
86 | private $actorStoreFactory; |
87 | |
88 | /** @var BlockRestrictionStore */ |
89 | private $blockRestrictionStore; |
90 | |
91 | /** @var CommentStore */ |
92 | private $commentStore; |
93 | |
94 | /** @var HookRunner */ |
95 | private $hookRunner; |
96 | |
97 | /** @var IConnectionProvider */ |
98 | private $dbProvider; |
99 | |
100 | /** @var ReadOnlyMode */ |
101 | private $readOnlyMode; |
102 | |
103 | /** @var UserFactory */ |
104 | private $userFactory; |
105 | |
106 | /** @var TempUserConfig */ |
107 | private $tempUserConfig; |
108 | |
109 | /** @var BlockUtils */ |
110 | private $blockUtils; |
111 | |
112 | /** @var AutoblockExemptionList */ |
113 | private $autoblockExemptionList; |
114 | |
115 | /** @var int */ |
116 | private $readStage; |
117 | |
118 | /** @var int */ |
119 | private $writeStage; |
120 | |
121 | /** |
122 | * @param ServiceOptions $options |
123 | * @param LoggerInterface $logger |
124 | * @param ActorStoreFactory $actorStoreFactory |
125 | * @param BlockRestrictionStore $blockRestrictionStore |
126 | * @param CommentStore $commentStore |
127 | * @param HookContainer $hookContainer |
128 | * @param IConnectionProvider $dbProvider |
129 | * @param ReadOnlyMode $readOnlyMode |
130 | * @param UserFactory $userFactory |
131 | * @param TempUserConfig $tempUserConfig |
132 | * @param BlockUtils $blockUtils |
133 | * @param AutoblockExemptionList $autoblockExemptionList |
134 | * @param string|false $wikiId |
135 | */ |
136 | public function __construct( |
137 | ServiceOptions $options, |
138 | LoggerInterface $logger, |
139 | ActorStoreFactory $actorStoreFactory, |
140 | BlockRestrictionStore $blockRestrictionStore, |
141 | CommentStore $commentStore, |
142 | HookContainer $hookContainer, |
143 | IConnectionProvider $dbProvider, |
144 | ReadOnlyMode $readOnlyMode, |
145 | UserFactory $userFactory, |
146 | TempUserConfig $tempUserConfig, |
147 | BlockUtils $blockUtils, |
148 | AutoblockExemptionList $autoblockExemptionList, |
149 | $wikiId = DatabaseBlock::LOCAL |
150 | ) { |
151 | $options->assertRequiredOptions( self::CONSTRUCTOR_OPTIONS ); |
152 | |
153 | $this->wikiId = $wikiId; |
154 | |
155 | $this->options = $options; |
156 | $this->logger = $logger; |
157 | $this->actorStoreFactory = $actorStoreFactory; |
158 | $this->blockRestrictionStore = $blockRestrictionStore; |
159 | $this->commentStore = $commentStore; |
160 | $this->hookRunner = new HookRunner( $hookContainer ); |
161 | $this->dbProvider = $dbProvider; |
162 | $this->readOnlyMode = $readOnlyMode; |
163 | $this->userFactory = $userFactory; |
164 | $this->tempUserConfig = $tempUserConfig; |
165 | $this->blockUtils = $blockUtils; |
166 | $this->autoblockExemptionList = $autoblockExemptionList; |
167 | |
168 | $stage = $options->get( MainConfigNames::BlockTargetMigrationStage ); |
169 | $this->readStage = $stage & SCHEMA_COMPAT_READ_MASK; |
170 | if ( !in_array( $this->readStage, [ SCHEMA_COMPAT_READ_OLD, SCHEMA_COMPAT_READ_NEW ], true ) ) { |
171 | throw new ConfigException( |
172 | '$wgBlockTargetMigrationStage has an unsupported read stage' ); |
173 | } |
174 | $this->writeStage = $stage & SCHEMA_COMPAT_WRITE_MASK; |
175 | if ( !in_array( |
176 | $this->writeStage, |
177 | [ SCHEMA_COMPAT_WRITE_OLD, SCHEMA_COMPAT_WRITE_BOTH, SCHEMA_COMPAT_WRITE_NEW ] |
178 | ) ) { |
179 | throw new ConfigException( |
180 | '$wgBlockTargetMigrationStage has an unsupported write stage' ); |
181 | } |
182 | } |
183 | |
184 | /** |
185 | * Get the read stage of the block_target migration |
186 | * |
187 | * @since 1.42 |
188 | * @return int |
189 | */ |
190 | public function getReadStage() { |
191 | return $this->readStage; |
192 | } |
193 | |
194 | /** |
195 | * Get the write stage of the block_target migration |
196 | * |
197 | * @since 1.42 |
198 | * @return int |
199 | */ |
200 | public function getWriteStage() { |
201 | return $this->writeStage; |
202 | } |
203 | |
204 | /***************************************************************************/ |
205 | // region Database read methods |
206 | /** @name Database read methods */ |
207 | |
208 | /** |
209 | * Load a block from the block ID. |
210 | * |
211 | * @since 1.42 |
212 | * @param int $id ID to search for |
213 | * @return DatabaseBlock|null |
214 | */ |
215 | public function newFromID( $id ) { |
216 | $dbr = $this->getReplicaDB(); |
217 | if ( $this->readStage === SCHEMA_COMPAT_READ_OLD ) { |
218 | $blockQuery = $this->getQueryInfo( self::SCHEMA_IPBLOCKS ); |
219 | $res = $dbr->selectRow( |
220 | $blockQuery['tables'], |
221 | $blockQuery['fields'], |
222 | [ 'ipb_id' => $id ], |
223 | __METHOD__, |
224 | [], |
225 | $blockQuery['joins'] |
226 | ); |
227 | } else { |
228 | $blockQuery = $this->getQueryInfo( self::SCHEMA_BLOCK ); |
229 | $res = $dbr->selectRow( |
230 | $blockQuery['tables'], |
231 | $blockQuery['fields'], |
232 | [ 'bl_id' => $id ], |
233 | __METHOD__, |
234 | [], |
235 | $blockQuery['joins'] |
236 | ); |
237 | } |
238 | if ( $res ) { |
239 | return $this->newFromRow( $dbr, $res ); |
240 | } else { |
241 | return null; |
242 | } |
243 | } |
244 | |
245 | /** |
246 | * Return the tables, fields, and join conditions to be selected to create |
247 | * a new block object. |
248 | * |
249 | * Since 1.34, ipb_by and ipb_by_text have not been present in the |
250 | * database, but they continue to be available in query results as |
251 | * aliases. |
252 | * |
253 | * @since 1.42 |
254 | * @internal Avoid this method and DatabaseBlock::getQueryInfo() in new |
255 | * external code, since they are not schema-independent. Use |
256 | * newListFromConds() and deleteBlocksMatchingConds(). |
257 | * |
258 | * @param string $schema What schema to use for field aliases. May be either |
259 | * self::SCHEMA_IPBLOCKS or self::SCHEMA_BLOCK. In future this will |
260 | * default to SCHEMA_BLOCK, and later the parameter will be removed. |
261 | * @return array[] With three keys: |
262 | * - tables: (string[]) to include in the `$table` to `IDatabase->select()` |
263 | * or `SelectQueryBuilder::tables` |
264 | * - fields: (string[]) to include in the `$vars` to `IDatabase->select()` |
265 | * or `SelectQueryBuilder::fields` |
266 | * - joins: (array) to include in the `$join_conds` to `IDatabase->select()` |
267 | * or `SelectQueryBuilder::joinConds` |
268 | * @phan-return array{tables:string[],fields:string[],joins:array} |
269 | */ |
270 | public function getQueryInfo( $schema ) { |
271 | if ( $this->readStage === SCHEMA_COMPAT_READ_OLD ) { |
272 | $commentQuery = $this->commentStore->getJoin( 'ipb_reason' ); |
273 | if ( $schema === self::SCHEMA_IPBLOCKS ) { |
274 | return [ |
275 | 'tables' => [ |
276 | 'ipblocks', |
277 | 'ipblocks_actor' => 'actor' |
278 | ] + $commentQuery['tables'], |
279 | 'fields' => [ |
280 | 'ipb_id', |
281 | 'ipb_address', |
282 | 'ipb_timestamp', |
283 | 'ipb_auto', |
284 | 'ipb_anon_only', |
285 | 'ipb_create_account', |
286 | 'ipb_enable_autoblock', |
287 | 'ipb_expiry', |
288 | 'ipb_deleted', |
289 | 'ipb_block_email', |
290 | 'ipb_allow_usertalk', |
291 | 'ipb_parent_block_id', |
292 | 'ipb_sitewide', |
293 | 'ipb_by_actor', |
294 | 'ipb_by' => 'ipblocks_actor.actor_user', |
295 | 'ipb_by_text' => 'ipblocks_actor.actor_name', |
296 | ] + $commentQuery['fields'], |
297 | 'joins' => [ |
298 | 'ipblocks_actor' => [ 'JOIN', 'actor_id=ipb_by_actor' ] |
299 | ] + $commentQuery['joins'], |
300 | ]; |
301 | } elseif ( $schema === self::SCHEMA_BLOCK ) { |
302 | return [ |
303 | 'tables' => [ |
304 | 'ipblocks', |
305 | 'ipblocks_actor' => 'actor' |
306 | ] + $commentQuery['tables'], |
307 | 'fields' => [ |
308 | 'bl_id' => 'ipb_id', |
309 | 'bt_address' => 'ipb_address', |
310 | 'bt_user' => 'ipb_user', |
311 | 'bt_user_text' => 'ipb_address', |
312 | 'bl_timestamp' => 'ipb_timestamp', |
313 | 'bt_auto' => 'ipb_auto', |
314 | 'bl_anon_only' => 'ipb_anon_only', |
315 | 'bl_create_account' => 'ipb_create_account', |
316 | 'bl_enable_autoblock' => 'ipb_enable_autoblock', |
317 | 'bl_expiry' => 'ipb_expiry', |
318 | 'bl_deleted' => 'ipb_deleted', |
319 | 'bl_block_email' => 'ipb_block_email', |
320 | 'bl_allow_usertalk' => 'ipb_allow_usertalk', |
321 | 'bl_parent_block_id' => 'ipb_parent_block_id', |
322 | 'bl_sitewide' => 'ipb_sitewide', |
323 | 'bl_by_actor' => 'ipb_by_actor', |
324 | 'bl_by_user' => 'ipblocks_actor.actor_user', |
325 | 'bl_by_text' => 'ipblocks_actor.actor_name', |
326 | 'bl_reason_text' => $commentQuery['fields']['ipb_reason_text'], |
327 | 'bl_reason_data' => $commentQuery['fields']['ipb_reason_data'], |
328 | 'bl_reason_cid' => $commentQuery['fields']['ipb_reason_cid'], |
329 | ], |
330 | 'joins' => [ |
331 | 'ipblocks_actor' => [ 'JOIN', 'actor_id=ipb_by_actor' ] |
332 | ] + $commentQuery['joins'], |
333 | ]; |
334 | } |
335 | } else { |
336 | $commentQuery = $this->commentStore->getJoin( 'bl_reason' ); |
337 | if ( $schema === self::SCHEMA_IPBLOCKS ) { |
338 | return [ |
339 | 'tables' => [ |
340 | 'block', |
341 | 'block_by_actor' => 'actor', |
342 | ] + $commentQuery['tables'], |
343 | 'fields' => [ |
344 | 'ipb_id' => 'bl_id', |
345 | 'ipb_address' => 'COALESCE(bt_address, bt_user_text)', |
346 | 'ipb_timestamp' => 'bl_timestamp', |
347 | 'ipb_auto' => 'bt_auto', |
348 | 'ipb_anon_only' => 'bl_anon_only', |
349 | 'ipb_create_account' => 'bl_create_account', |
350 | 'ipb_enable_autoblock' => 'bl_enable_autoblock', |
351 | 'ipb_expiry' => 'bl_expiry', |
352 | 'ipb_deleted' => 'bl_deleted', |
353 | 'ipb_block_email' => 'bl_block_email', |
354 | 'ipb_allow_usertalk' => 'bl_allow_usertalk', |
355 | 'ipb_parent_block_id' => 'bl_parent_block_id', |
356 | 'ipb_sitewide' => 'bl_sitewide', |
357 | 'ipb_by_actor' => 'bl_by_actor', |
358 | 'ipb_by' => 'block_by_actor.actor_user', |
359 | 'ipb_by_text' => 'block_by_actor.actor_name', |
360 | 'ipb_reason_text' => $commentQuery['fields']['bl_reason_text'], |
361 | 'ipb_reason_data' => $commentQuery['fields']['bl_reason_data'], |
362 | 'ipb_reason_cid' => $commentQuery['fields']['bl_reason_cid'], |
363 | ], |
364 | 'joins' => [ |
365 | 'block_by_actor' => [ 'JOIN', 'actor_id=bl_by_actor' ], |
366 | ] + $commentQuery['joins'], |
367 | ]; |
368 | } elseif ( $schema === self::SCHEMA_BLOCK ) { |
369 | return [ |
370 | 'tables' => [ |
371 | 'block', |
372 | 'block_target', |
373 | 'block_by_actor' => 'actor', |
374 | ] + $commentQuery['tables'], |
375 | 'fields' => [ |
376 | 'bl_id', |
377 | 'bt_address', |
378 | 'bt_user', |
379 | 'bt_user_text', |
380 | 'bl_timestamp', |
381 | 'bt_auto', |
382 | 'bl_anon_only', |
383 | 'bl_create_account', |
384 | 'bl_enable_autoblock', |
385 | 'bl_expiry', |
386 | 'bl_deleted', |
387 | 'bl_block_email', |
388 | 'bl_allow_usertalk', |
389 | 'bl_parent_block_id', |
390 | 'bl_sitewide', |
391 | 'bl_by_actor', |
392 | 'bl_by' => 'block_by_actor.actor_user', |
393 | 'bl_by_text' => 'block_by_actor.actor_name', |
394 | ] + $commentQuery['fields'], |
395 | 'joins' => [ |
396 | 'block_target' => [ 'JOIN', 'bt_id=bl_target' ], |
397 | 'block_by_actor' => [ 'JOIN', 'actor_id=bl_by_actor' ], |
398 | ] + $commentQuery['joins'], |
399 | ]; |
400 | } |
401 | } |
402 | throw new InvalidArgumentException( |
403 | '$schema must be SCHEMA_IPBLOCKS or SCHEMA_BLOCK' ); |
404 | } |
405 | |
406 | /** |
407 | * Load blocks from the database which target the specific target exactly, or which cover the |
408 | * vague target. |
409 | * |
410 | * @param UserIdentity|string|null $specificTarget |
411 | * @param int|null $specificType |
412 | * @param bool $fromPrimary |
413 | * @param UserIdentity|string|null $vagueTarget Also search for blocks affecting this target. |
414 | * Doesn't make any sense to use TYPE_AUTO / TYPE_ID here. Leave blank to skip IP lookups. |
415 | * @return DatabaseBlock[] Any relevant blocks |
416 | */ |
417 | private function newLoad( |
418 | $specificTarget, |
419 | $specificType, |
420 | $fromPrimary, |
421 | $vagueTarget = null |
422 | ) { |
423 | if ( $fromPrimary ) { |
424 | $db = $this->getPrimaryDB(); |
425 | } else { |
426 | $db = $this->getReplicaDB(); |
427 | } |
428 | |
429 | $userIds = []; |
430 | $userNames = []; |
431 | $addresses = []; |
432 | $ranges = []; |
433 | if ( $specificType === Block::TYPE_USER ) { |
434 | if ( $specificTarget instanceof UserIdentity ) { |
435 | $userId = $specificTarget->getId( $this->wikiId ); |
436 | if ( $userId ) { |
437 | $userIds[] = $specificTarget->getId( $this->wikiId ); |
438 | } else { |
439 | // A nonexistent user can have no blocks. |
440 | // This case is hit in testing, possibly production too. |
441 | // Ignoring the user is optimal for production performance. |
442 | } |
443 | } else { |
444 | $userNames[] = (string)$specificTarget; |
445 | } |
446 | } elseif ( in_array( $specificType, [ Block::TYPE_IP, Block::TYPE_RANGE ], true ) ) { |
447 | $addresses[] = (string)$specificTarget; |
448 | } |
449 | |
450 | // Be aware that the != '' check is explicit, since empty values will be |
451 | // passed by some callers (T31116) |
452 | if ( $vagueTarget != '' ) { |
453 | [ $target, $type ] = $this->blockUtils->parseBlockTarget( $vagueTarget ); |
454 | switch ( $type ) { |
455 | case Block::TYPE_USER: |
456 | // Slightly weird, but who are we to argue? |
457 | /** @var UserIdentity $vagueUser */ |
458 | $vagueUser = $target; |
459 | if ( $vagueUser->getId( $this->wikiId ) ) { |
460 | $userIds[] = $vagueUser->getId( $this->wikiId ); |
461 | } else { |
462 | $userNames[] = $vagueUser->getName(); |
463 | } |
464 | break; |
465 | |
466 | case Block::TYPE_IP: |
467 | $ranges[] = [ IPUtils::toHex( $target ), null ]; |
468 | break; |
469 | |
470 | case Block::TYPE_RANGE: |
471 | $ranges[] = IPUtils::parseRange( $target ); |
472 | break; |
473 | |
474 | default: |
475 | $this->logger->debug( "Ignoring invalid vague target" ); |
476 | } |
477 | } |
478 | |
479 | if ( $this->readStage === SCHEMA_COMPAT_READ_OLD ) { |
480 | $userIdField = 'ipb_user'; |
481 | $addressField = 'ipb_address'; |
482 | $schema = self::SCHEMA_IPBLOCKS; |
483 | } else { |
484 | $userIdField = 'bt_user'; |
485 | $addressField = 'bt_address'; |
486 | $schema = self::SCHEMA_BLOCK; |
487 | } |
488 | |
489 | $orConds = []; |
490 | if ( $userIds ) { |
491 | // @phan-suppress-next-line PhanTypeMismatchArgument -- array_unique() result is non-empty |
492 | $orConds[] = $db->expr( $userIdField, '=', array_unique( $userIds ) ); |
493 | } |
494 | if ( $userNames ) { |
495 | if ( $this->readStage === SCHEMA_COMPAT_READ_OLD ) { |
496 | // @phan-suppress-next-line PhanTypeMismatchArgument -- array_unique() result is non-empty |
497 | $orConds[] = $db->expr( 'ipb_address', '=', array_unique( $userNames ) ); |
498 | } else { |
499 | // Add bt_ip_hex to the condition since it is in the index |
500 | $orConds[] = $db->expr( 'bt_ip_hex', '=', null ) |
501 | // @phan-suppress-next-line PhanTypeMismatchArgument -- array_unique() result is non-empty |
502 | ->and( 'bt_user_text', '=', array_unique( $userNames ) ); |
503 | } |
504 | } |
505 | if ( $addresses ) { |
506 | // @phan-suppress-next-line PhanTypeMismatchArgument |
507 | $orConds[] = $db->expr( $addressField, '=', array_unique( $addresses ) ); |
508 | } |
509 | foreach ( $ranges as $range ) { |
510 | $orConds[] = $this->getRangeCond( $range[0], $range[1], $schema ); |
511 | } |
512 | if ( !$orConds ) { |
513 | return []; |
514 | } |
515 | |
516 | $blockQuery = $this->getQueryInfo( $schema ); |
517 | $res = $db->select( |
518 | $blockQuery['tables'], |
519 | $blockQuery['fields'], |
520 | $db->makeList( $orConds, IDatabase::LIST_OR ), |
521 | __METHOD__, |
522 | [], |
523 | $blockQuery['joins'] |
524 | ); |
525 | |
526 | $blocks = []; |
527 | $blockIds = []; |
528 | $autoBlocks = []; |
529 | foreach ( $res as $row ) { |
530 | $block = $this->newFromRow( $db, $row ); |
531 | |
532 | // Don't use expired blocks |
533 | if ( $block->isExpired() ) { |
534 | continue; |
535 | } |
536 | |
537 | // Don't use anon only blocks on users |
538 | if ( |
539 | $specificType == Block::TYPE_USER && $specificTarget && |
540 | !$block->isHardblock() && |
541 | !$this->tempUserConfig->isTempName( $specificTarget ) |
542 | ) { |
543 | continue; |
544 | } |
545 | |
546 | // Check for duplicate autoblocks |
547 | if ( $block->getType() === Block::TYPE_AUTO ) { |
548 | $autoBlocks[] = $block; |
549 | } else { |
550 | $blocks[] = $block; |
551 | $blockIds[] = $block->getId( $this->wikiId ); |
552 | } |
553 | } |
554 | |
555 | // Only add autoblocks that aren't duplicates |
556 | foreach ( $autoBlocks as $block ) { |
557 | if ( !in_array( $block->getParentBlockId(), $blockIds ) ) { |
558 | $blocks[] = $block; |
559 | } |
560 | } |
561 | |
562 | return $blocks; |
563 | } |
564 | |
565 | /** |
566 | * Choose the most specific block from some combination of user, IP and IP range |
567 | * blocks. Decreasing order of specificity: user > IP > narrower IP range > wider IP |
568 | * range. A range that encompasses one IP address is ranked equally to a singe IP. |
569 | * |
570 | * @param DatabaseBlock[] $blocks These should not include autoblocks or ID blocks |
571 | * @return DatabaseBlock|null The block with the most specific target |
572 | */ |
573 | private function chooseMostSpecificBlock( array $blocks ) { |
574 | if ( count( $blocks ) === 1 ) { |
575 | return $blocks[0]; |
576 | } |
577 | |
578 | // This result could contain a block on the user, a block on the IP, and a russian-doll |
579 | // set of range blocks. We want to choose the most specific one, so keep a leader board. |
580 | $bestBlock = null; |
581 | |
582 | // Lower will be better |
583 | $bestBlockScore = 100; |
584 | foreach ( $blocks as $block ) { |
585 | if ( $block->getType() == Block::TYPE_RANGE ) { |
586 | // This is the number of bits that are allowed to vary in the block, give |
587 | // or take some floating point errors |
588 | $target = $block->getTargetName(); |
589 | $max = IPUtils::isIPv6( $target ) ? 128 : 32; |
590 | [ , $bits ] = IPUtils::parseCIDR( $target ); |
591 | $size = $max - $bits; |
592 | |
593 | // Rank a range block covering a single IP equally with a single-IP block |
594 | $score = Block::TYPE_RANGE - 1 + ( $size / $max ); |
595 | |
596 | } else { |
597 | $score = $block->getType(); |
598 | } |
599 | |
600 | if ( $score < $bestBlockScore ) { |
601 | $bestBlockScore = $score; |
602 | $bestBlock = $block; |
603 | } |
604 | } |
605 | |
606 | return $bestBlock; |
607 | } |
608 | |
609 | /** |
610 | * Get a set of SQL conditions which select range blocks encompassing a |
611 | * given range. If the given range is a single IP with start=end, it will |
612 | * also select single IP blocks with that IP. |
613 | * |
614 | * @since 1.42 |
615 | * @param string $start Hexadecimal IP representation |
616 | * @param string|null $end Hexadecimal IP representation, or null to use $start = $end |
617 | * @param string $schema What schema to use for field aliases. Can be one of: |
618 | * - self::SCHEMA_IPBLOCKS for the old schema |
619 | * - self::SCHEMA_BLOCK for the new schema |
620 | * - self::SCHEMA_CURRENT for the schema configured by read mode in |
621 | * $wgBlockTargetMigrationStage. |
622 | * In future this will default to the new schema and later the parameter will be removed. |
623 | * @return string |
624 | */ |
625 | public function getRangeCond( $start, $end, $schema ) { |
626 | // Per T16634, we want to include relevant active range blocks; for |
627 | // range blocks, we want to include larger ranges which enclose the given |
628 | // range. We know that all blocks must be smaller than $wgBlockCIDRLimit, |
629 | // so we can improve performance by filtering on a LIKE clause |
630 | $chunk = $this->getIpFragment( $start ); |
631 | $dbr = $this->getReplicaDB(); |
632 | $like = $dbr->buildLike( $chunk, $dbr->anyString() ); |
633 | $end ??= $start; |
634 | |
635 | if ( $schema === self::SCHEMA_CURRENT ) { |
636 | $schema = $this->readStage === SCHEMA_COMPAT_READ_OLD |
637 | ? self::SCHEMA_IPBLOCKS : self::SCHEMA_BLOCK; |
638 | } |
639 | |
640 | if ( $schema === self::SCHEMA_IPBLOCKS ) { |
641 | return $dbr->makeList( |
642 | [ |
643 | "ipb_range_start $like", |
644 | $dbr->expr( 'ipb_range_start', '<=', $start ), |
645 | $dbr->expr( 'ipb_range_end', '>=', $end ), |
646 | ], |
647 | LIST_AND |
648 | ); |
649 | } elseif ( $schema === self::SCHEMA_BLOCK ) { |
650 | return $dbr->makeList( |
651 | [ |
652 | 'bt_ip_hex' => $start, |
653 | $dbr->makeList( |
654 | [ |
655 | "bt_range_start $like", |
656 | $dbr->expr( 'bt_range_start', '<=', $start ), |
657 | $dbr->expr( 'bt_range_end', '>=', $end ), |
658 | ], |
659 | LIST_AND |
660 | ) |
661 | ], |
662 | LIST_OR |
663 | ); |
664 | } else { |
665 | throw new InvalidArgumentException( |
666 | '$schema must be SCHEMA_IPBLOCKS or SCHEMA_BLOCK' ); |
667 | } |
668 | } |
669 | |
670 | /** |
671 | * Get the component of an IP address which is certain to be the same between an IP |
672 | * address and a range block containing that IP address. |
673 | * |
674 | * @param string $hex Hexadecimal IP representation |
675 | * @return string |
676 | */ |
677 | private function getIpFragment( $hex ) { |
678 | $blockCIDRLimit = $this->options->get( MainConfigNames::BlockCIDRLimit ); |
679 | if ( str_starts_with( $hex, 'v6-' ) ) { |
680 | return 'v6-' . substr( substr( $hex, 3 ), 0, (int)floor( $blockCIDRLimit['IPv6'] / 4 ) ); |
681 | } else { |
682 | return substr( $hex, 0, (int)floor( $blockCIDRLimit['IPv4'] / 4 ) ); |
683 | } |
684 | } |
685 | |
686 | /** |
687 | * Create a new DatabaseBlock object from a database row |
688 | * |
689 | * @since 1.42 |
690 | * @param IReadableDatabase $db The database you got the row from |
691 | * @param stdClass $row Row from the ipblocks table |
692 | * @return DatabaseBlock |
693 | */ |
694 | public function newFromRow( IReadableDatabase $db, $row ) { |
695 | if ( isset( $row->ipb_id ) ) { |
696 | return new DatabaseBlock( [ |
697 | 'address' => $row->ipb_address, |
698 | 'wiki' => $this->wikiId, |
699 | 'timestamp' => $row->ipb_timestamp, |
700 | 'auto' => (bool)$row->ipb_auto, |
701 | 'hideName' => (bool)$row->ipb_deleted, |
702 | 'id' => (int)$row->ipb_id, |
703 | // Blocks with no parent ID should have ipb_parent_block_id as null, |
704 | // don't save that as 0 though, see T282890 |
705 | 'parentBlockId' => $row->ipb_parent_block_id |
706 | ? (int)$row->ipb_parent_block_id : null, |
707 | 'by' => $this->actorStoreFactory |
708 | ->getActorStore( $this->wikiId ) |
709 | ->newActorFromRowFields( $row->ipb_by, $row->ipb_by_text, $row->ipb_by_actor ), |
710 | 'decodedExpiry' => $db->decodeExpiry( $row->ipb_expiry ), |
711 | 'reason' => $this->commentStore |
712 | // Legacy because $row may have come from self::selectFields() |
713 | ->getCommentLegacy( $db, 'ipb_reason', $row ), |
714 | 'anonOnly' => $row->ipb_anon_only, |
715 | 'enableAutoblock' => (bool)$row->ipb_enable_autoblock, |
716 | 'sitewide' => (bool)$row->ipb_sitewide, |
717 | 'createAccount' => (bool)$row->ipb_create_account, |
718 | 'blockEmail' => (bool)$row->ipb_block_email, |
719 | 'allowUsertalk' => (bool)$row->ipb_allow_usertalk |
720 | ] ); |
721 | } else { |
722 | $address = $row->bt_address |
723 | ?? new UserIdentityValue( $row->bt_user, $row->bt_user_text, $this->wikiId ); |
724 | return new DatabaseBlock( [ |
725 | 'address' => $address, |
726 | 'wiki' => $this->wikiId, |
727 | 'timestamp' => $row->bl_timestamp, |
728 | 'auto' => (bool)$row->bt_auto, |
729 | 'hideName' => (bool)$row->bl_deleted, |
730 | 'id' => (int)$row->bl_id, |
731 | // Blocks with no parent ID should have ipb_parent_block_id as null, |
732 | // don't save that as 0 though, see T282890 |
733 | 'parentBlockId' => $row->bl_parent_block_id |
734 | ? (int)$row->bl_parent_block_id : null, |
735 | 'by' => $this->actorStoreFactory |
736 | ->getActorStore( $this->wikiId ) |
737 | ->newActorFromRowFields( $row->bl_by, $row->bl_by_text, $row->bl_by_actor ), |
738 | 'decodedExpiry' => $db->decodeExpiry( $row->bl_expiry ), |
739 | 'reason' => $this->commentStore->getComment( 'bl_reason', $row ), |
740 | 'anonOnly' => $row->bl_anon_only, |
741 | 'enableAutoblock' => (bool)$row->bl_enable_autoblock, |
742 | 'sitewide' => (bool)$row->bl_sitewide, |
743 | 'createAccount' => (bool)$row->bl_create_account, |
744 | 'blockEmail' => (bool)$row->bl_block_email, |
745 | 'allowUsertalk' => (bool)$row->bl_allow_usertalk |
746 | ] ); |
747 | } |
748 | } |
749 | |
750 | /** |
751 | * Given a target and the target's type, get an existing block object if possible. |
752 | * |
753 | * @since 1.42 |
754 | * @param string|UserIdentity|int|null $specificTarget A block target, which may be one of |
755 | * several types: |
756 | * * A user to block, in which case $target will be a User |
757 | * * An IP to block, in which case $target will be a User generated by using |
758 | * User::newFromName( $ip, false ) to turn off name validation |
759 | * * An IP range, in which case $target will be a String "123.123.123.123/18" etc |
760 | * * The ID of an existing block, in the format "#12345" (since pure numbers are valid |
761 | * usernames |
762 | * Calling this with a user, IP address or range will not select autoblocks, and will |
763 | * only select a block where the targets match exactly (so looking for blocks on |
764 | * 1.2.3.4 will not select 1.2.0.0/16 or even 1.2.3.4/32) |
765 | * @param string|UserIdentity|int|null $vagueTarget As above, but we will search for *any* |
766 | * block which affects that target (so for an IP address, get ranges containing that IP; |
767 | * and also get any relevant autoblocks). Leave empty or blank to skip IP-based lookups. |
768 | * @param bool $fromPrimary Whether to use the DB_PRIMARY database |
769 | * @return DatabaseBlock|null (null if no relevant block could be found). The target and type |
770 | * of the returned block will refer to the actual block which was found, which might |
771 | * not be the same as the target you gave if you used $vagueTarget! |
772 | */ |
773 | public function newFromTarget( |
774 | $specificTarget, |
775 | $vagueTarget = null, |
776 | $fromPrimary = false |
777 | ) { |
778 | $blocks = $this->newListFromTarget( $specificTarget, $vagueTarget, $fromPrimary ); |
779 | return $this->chooseMostSpecificBlock( $blocks ); |
780 | } |
781 | |
782 | /** |
783 | * This is similar to DatabaseBlockStore::newFromTarget, but it returns all the relevant blocks. |
784 | * |
785 | * @since 1.42 |
786 | * @param string|UserIdentity|int|null $specificTarget |
787 | * @param string|UserIdentity|int|null $vagueTarget |
788 | * @param bool $fromPrimary |
789 | * @return DatabaseBlock[] Any relevant blocks |
790 | */ |
791 | public function newListFromTarget( |
792 | $specificTarget, |
793 | $vagueTarget = null, |
794 | $fromPrimary = false |
795 | ) { |
796 | [ $target, $type ] = $this->blockUtils->parseBlockTarget( $specificTarget ); |
797 | if ( $type == Block::TYPE_ID || $type == Block::TYPE_AUTO ) { |
798 | $block = $this->newFromID( $target ); |
799 | return $block ? [ $block ] : []; |
800 | } elseif ( $target === null && $vagueTarget == '' ) { |
801 | // We're not going to find anything useful here |
802 | // Be aware that the == '' check is explicit, since empty values will be |
803 | // passed by some callers (T31116) |
804 | return []; |
805 | } elseif ( in_array( |
806 | $type, |
807 | [ Block::TYPE_USER, Block::TYPE_IP, Block::TYPE_RANGE, null ] ) |
808 | ) { |
809 | return $this->newLoad( $target, $type, $fromPrimary, $vagueTarget ); |
810 | } |
811 | return []; |
812 | } |
813 | |
814 | /** |
815 | * Get all blocks that match any IP from an array of IP addresses |
816 | * |
817 | * @since 1.42 |
818 | * @param string[] $addresses Validated list of IP addresses |
819 | * @param bool $applySoftBlocks Include soft blocks (anonymous-only blocks). These |
820 | * should only block anonymous and temporary users. |
821 | * @param bool $fromPrimary Whether to query the primary or replica DB |
822 | * @return DatabaseBlock[] |
823 | */ |
824 | public function newListFromIPs( array $addresses, $applySoftBlocks, $fromPrimary = false ) { |
825 | if ( $addresses === [] ) { |
826 | return []; |
827 | } |
828 | |
829 | $conds = []; |
830 | foreach ( array_unique( $addresses ) as $ipaddr ) { |
831 | $conds[] = $this->getRangeCond( IPUtils::toHex( $ipaddr ), null, self::SCHEMA_CURRENT ); |
832 | } |
833 | |
834 | if ( $conds === [] ) { |
835 | return []; |
836 | } |
837 | |
838 | if ( $fromPrimary ) { |
839 | $db = $this->getPrimaryDB(); |
840 | } else { |
841 | $db = $this->getReplicaDB(); |
842 | } |
843 | $conds = $db->makeList( $conds, LIST_OR ); |
844 | if ( $this->readStage === SCHEMA_COMPAT_READ_OLD ) { |
845 | if ( !$applySoftBlocks ) { |
846 | $conds = [ $conds, 'ipb_anon_only' => 0 ]; |
847 | } |
848 | $blockQuery = $this->getQueryInfo( self::SCHEMA_IPBLOCKS ); |
849 | $rows = $db->newSelectQueryBuilder() |
850 | ->queryInfo( $blockQuery ) |
851 | ->fields( [ 'ipb_range_start', 'ipb_range_end' ] ) |
852 | ->where( $conds ) |
853 | ->caller( __METHOD__ ) |
854 | ->fetchResultSet(); |
855 | } else { |
856 | if ( !$applySoftBlocks ) { |
857 | $conds = [ $conds, 'bl_anon_only' => 0 ]; |
858 | } |
859 | $blockQuery = $this->getQueryInfo( self::SCHEMA_BLOCK ); |
860 | $rows = $db->newSelectQueryBuilder() |
861 | ->queryInfo( $blockQuery ) |
862 | ->fields( [ 'bt_range_start', 'bt_range_end' ] ) |
863 | ->where( $conds ) |
864 | ->caller( __METHOD__ ) |
865 | ->fetchResultSet(); |
866 | } |
867 | |
868 | $blocks = []; |
869 | foreach ( $rows as $row ) { |
870 | $block = $this->newFromRow( $db, $row ); |
871 | if ( !$block->isExpired() ) { |
872 | $blocks[] = $block; |
873 | } |
874 | } |
875 | |
876 | return $blocks; |
877 | } |
878 | |
879 | /** |
880 | * Construct an array of blocks from database conditions. |
881 | * |
882 | * @since 1.42 |
883 | * @param array $conds For schema-independence this should be an associative |
884 | * array mapping field names to values. Field names from the new schema |
885 | * should be used. |
886 | * @param bool $fromPrimary |
887 | * @param bool $includeExpired |
888 | * @return DatabaseBlock[] |
889 | */ |
890 | public function newListFromConds( $conds, $fromPrimary = false, $includeExpired = false ) { |
891 | $db = $fromPrimary ? $this->getPrimaryDB() : $this->getReplicaDB(); |
892 | if ( $this->readStage === SCHEMA_COMPAT_READ_OLD ) { |
893 | $conds = self::mapCondsToOldSchema( $conds ); |
894 | if ( !$includeExpired ) { |
895 | $conds[] = $db->expr( 'ipb_expiry', '>=', $db->timestamp() ); |
896 | } |
897 | $res = $db->newSelectQueryBuilder() |
898 | ->queryInfo( $this->getQueryInfo( self::SCHEMA_IPBLOCKS ) ) |
899 | ->conds( $conds ) |
900 | ->caller( __METHOD__ ) |
901 | ->fetchResultSet(); |
902 | } else { |
903 | $conds = self::mapActorAlias( $conds ); |
904 | if ( !$includeExpired ) { |
905 | $conds[] = $db->expr( 'bl_expiry', '>=', $db->timestamp() ); |
906 | } |
907 | $res = $db->newSelectQueryBuilder() |
908 | ->queryInfo( $this->getQueryInfo( self::SCHEMA_BLOCK ) ) |
909 | ->conds( $conds ) |
910 | ->caller( __METHOD__ ) |
911 | ->fetchResultSet(); |
912 | } |
913 | $blocks = []; |
914 | foreach ( $res as $row ) { |
915 | $blocks[] = $this->newFromRow( $db, $row ); |
916 | } |
917 | return $blocks; |
918 | } |
919 | |
920 | // endregion -- end of database read methods |
921 | |
922 | /***************************************************************************/ |
923 | // region Database write methods |
924 | /** @name Database write methods */ |
925 | |
926 | /** |
927 | * Delete expired blocks from the ipblocks table |
928 | * |
929 | * @internal only public for use in DatabaseBlock |
930 | */ |
931 | public function purgeExpiredBlocks() { |
932 | if ( $this->readOnlyMode->isReadOnly( $this->wikiId ) ) { |
933 | return; |
934 | } |
935 | |
936 | $dbw = $this->getPrimaryDB(); |
937 | |
938 | DeferredUpdates::addUpdate( new AutoCommitUpdate( |
939 | $dbw, |
940 | __METHOD__, |
941 | function ( IDatabase $dbw, $fname ) { |
942 | $limit = $this->options->get( MainConfigNames::UpdateRowsPerQuery ); |
943 | if ( $this->writeStage & SCHEMA_COMPAT_WRITE_OLD ) { |
944 | $ids = $dbw->newSelectQueryBuilder() |
945 | ->select( 'ipb_id' ) |
946 | ->from( 'ipblocks' ) |
947 | ->where( $dbw->expr( 'ipb_expiry', '<', $dbw->timestamp() ) ) |
948 | // Set a limit to avoid causing replication lag (T301742) |
949 | ->limit( $limit ) |
950 | ->caller( $fname )->fetchFieldValues(); |
951 | if ( $ids ) { |
952 | $ids = array_map( 'intval', $ids ); |
953 | $this->blockRestrictionStore->deleteByBlockId( $ids ); |
954 | $dbw->newDeleteQueryBuilder() |
955 | ->deleteFrom( 'ipblocks' ) |
956 | ->where( [ 'ipb_id' => $ids ] ) |
957 | ->caller( $fname )->execute(); |
958 | } |
959 | } |
960 | if ( $this->writeStage & SCHEMA_COMPAT_WRITE_NEW ) { |
961 | $res = $dbw->newSelectQueryBuilder() |
962 | ->select( [ 'bl_id', 'bl_target' ] ) |
963 | ->from( 'block' ) |
964 | ->where( $dbw->expr( 'bl_expiry', '<', $dbw->timestamp() ) ) |
965 | // Set a limit to avoid causing replication lag (T301742) |
966 | ->limit( $limit ) |
967 | ->caller( $fname )->fetchResultSet(); |
968 | $this->deleteBlockRows( $res ); |
969 | } |
970 | } |
971 | ) ); |
972 | } |
973 | |
974 | /** |
975 | * Delete all blocks matching the given conditions. |
976 | * |
977 | * @since 1.42 |
978 | * @param array $conds An associative array mapping the field name to the |
979 | * matched value. Some limited schema abstractions are implemented, to |
980 | * allow new field names to be used with the old schema. |
981 | * @param int|null $limit The maximum number of blocks to delete |
982 | * @return int The number of blocks deleted |
983 | */ |
984 | public function deleteBlocksMatchingConds( array $conds, $limit = null ) { |
985 | $dbw = $this->getPrimaryDB(); |
986 | $affected = 0; |
987 | if ( $this->writeStage & SCHEMA_COMPAT_WRITE_OLD ) { |
988 | $oldConds = self::mapCondsToOldSchema( $conds ); |
989 | $qb = $dbw->newSelectQueryBuilder() |
990 | ->select( 'ipb_id' ) |
991 | ->from( 'ipblocks' ) |
992 | ->where( $oldConds ) |
993 | ->caller( __METHOD__ ); |
994 | if ( self::hasActorAlias( $oldConds ) ) { |
995 | $qb->join( 'actor', 'ipblocks_actor', 'actor_id=ipb_by_actor' ); |
996 | } |
997 | if ( $limit !== null ) { |
998 | $qb->limit( $limit ); |
999 | } |
1000 | $ids = $qb->fetchFieldValues(); |
1001 | if ( $ids ) { |
1002 | $ids = array_map( 'intval', $ids ); |
1003 | $this->blockRestrictionStore->deleteByBlockId( $ids ); |
1004 | $dbw->newDeleteQueryBuilder() |
1005 | ->deleteFrom( 'ipblocks' ) |
1006 | ->where( [ 'ipb_id' => $ids ] ) |
1007 | ->caller( __METHOD__ )->execute(); |
1008 | $affected = $dbw->affectedRows(); |
1009 | } |
1010 | } |
1011 | if ( $this->writeStage & SCHEMA_COMPAT_WRITE_NEW ) { |
1012 | $conds = self::mapActorAlias( $conds ); |
1013 | $qb = $dbw->newSelectQueryBuilder() |
1014 | ->select( [ 'bl_id', 'bl_target' ] ) |
1015 | ->from( 'block' ) |
1016 | // Typical input conds need block_target |
1017 | ->join( 'block_target', null, 'bt_id=bl_target' ) |
1018 | ->where( $conds ) |
1019 | ->caller( __METHOD__ ); |
1020 | if ( self::hasActorAlias( $conds ) ) { |
1021 | $qb->join( 'actor', 'ipblocks_actor', 'actor_id=bl_by_actor' ); |
1022 | } |
1023 | if ( $limit !== null ) { |
1024 | $qb->limit( $limit ); |
1025 | } |
1026 | $res = $qb->fetchResultSet(); |
1027 | $affected = max( $affected, $this->deleteBlockRows( $res ) ); |
1028 | } |
1029 | return $affected; |
1030 | } |
1031 | |
1032 | /** |
1033 | * Convert the field names in the condition array from new/generic names |
1034 | * old names. |
1035 | * |
1036 | * @param array $conds |
1037 | * @return array |
1038 | */ |
1039 | private static function mapCondsToOldSchema( $conds ) { |
1040 | return self::mapConds( |
1041 | [ |
1042 | 'bl_id' => 'ipb_id', |
1043 | 'bt_address' => 'ipb_address', |
1044 | 'bt_user' => 'ipb_user', |
1045 | 'bl_timestamp' => 'ipb_timestamp', |
1046 | 'bt_auto' => 'ipb_auto', |
1047 | 'bl_anon_only' => 'ipb_anon_only', |
1048 | 'bl_create_account' => 'ipb_create_account', |
1049 | 'bl_enable_autoblock' => 'ipb_enable_autoblock', |
1050 | 'bl_expiry' => 'ipb_expiry', |
1051 | 'bl_deleted' => 'ipb_deleted', |
1052 | 'bl_block_email' => 'ipb_block_email', |
1053 | 'bl_allow_usertalk' => 'ipb_allow_usertalk', |
1054 | 'bl_parent_block_id' => 'ipb_parent_block_id', |
1055 | 'bl_sitewide' => 'ipb_sitewide', |
1056 | 'bl_by_actor' => 'ipb_by_actor', |
1057 | 'bl_by' => 'ipblocks_actor.actor_user', |
1058 | ], |
1059 | $conds |
1060 | ); |
1061 | } |
1062 | |
1063 | /** |
1064 | * Helper for deleteBlocksMatchingConds() |
1065 | * |
1066 | * @param array $conds |
1067 | * @return array |
1068 | */ |
1069 | private static function mapActorAlias( $conds ) { |
1070 | return self::mapConds( |
1071 | [ |
1072 | 'bl_by' => 'ipblocks_actor.actor_user', |
1073 | ], |
1074 | $conds |
1075 | ); |
1076 | } |
1077 | |
1078 | /** |
1079 | * @param array $conds |
1080 | * @return bool |
1081 | */ |
1082 | private static function hasActorAlias( $conds ) { |
1083 | return array_key_exists( 'ipblocks_actor.actor_user', $conds ) |
1084 | || array_key_exists( 'ipblocks_actor.actor_name', $conds ); |
1085 | } |
1086 | |
1087 | /** |
1088 | * Remap the keys in an array |
1089 | * |
1090 | * @param array $map |
1091 | * @param array $conds |
1092 | * @return array |
1093 | */ |
1094 | private static function mapConds( $map, $conds ) { |
1095 | $newConds = []; |
1096 | foreach ( $conds as $field => $value ) { |
1097 | if ( isset( $map[$field] ) ) { |
1098 | $newConds[$map[$field]] = $value; |
1099 | } else { |
1100 | $newConds[$field] = $value; |
1101 | } |
1102 | } |
1103 | return $newConds; |
1104 | } |
1105 | |
1106 | /** |
1107 | * Delete rows from the block table and update the block_target |
1108 | * and ipblocks_restrictions tables accordingly. |
1109 | * |
1110 | * @param IResultWrapper $rows Rows containing bl_id and bl_target |
1111 | * @return int Number of deleted block rows |
1112 | */ |
1113 | private function deleteBlockRows( $rows ) { |
1114 | $ids = []; |
1115 | $deltasByTarget = []; |
1116 | foreach ( $rows as $row ) { |
1117 | $ids[] = (int)$row->bl_id; |
1118 | $target = (int)$row->bl_target; |
1119 | if ( !isset( $deltasByTarget[$target] ) ) { |
1120 | $deltasByTarget[$target] = 0; |
1121 | } |
1122 | $deltasByTarget[$target]++; |
1123 | } |
1124 | if ( !$ids ) { |
1125 | return 0; |
1126 | } |
1127 | $dbw = $this->getPrimaryDB(); |
1128 | $dbw->startAtomic( __METHOD__ ); |
1129 | |
1130 | $maxTargetCount = max( $deltasByTarget ); |
1131 | for ( $delta = 1; $delta <= $maxTargetCount; $delta++ ) { |
1132 | $targetsWithThisDelta = array_keys( $deltasByTarget, $delta, true ); |
1133 | $this->releaseTargets( $dbw, $targetsWithThisDelta, $delta ); |
1134 | } |
1135 | |
1136 | $dbw->newDeleteQueryBuilder() |
1137 | ->deleteFrom( 'block' ) |
1138 | ->where( [ 'bl_id' => $ids ] ) |
1139 | ->caller( __METHOD__ )->execute(); |
1140 | $numDeleted = $dbw->affectedRows(); |
1141 | $dbw->endAtomic( __METHOD__ ); |
1142 | $this->blockRestrictionStore->deleteByBlockId( $ids ); |
1143 | return $numDeleted; |
1144 | } |
1145 | |
1146 | /** |
1147 | * Decrement the bt_count field of a set of block_target rows and delete |
1148 | * the rows if the count falls to zero. |
1149 | * |
1150 | * @param IDatabase $dbw |
1151 | * @param int[] $targetIds |
1152 | * @param int $delta The amount to decrement by |
1153 | */ |
1154 | private function releaseTargets( IDatabase $dbw, $targetIds, int $delta = 1 ) { |
1155 | $dbw->newUpdateQueryBuilder() |
1156 | ->update( 'block_target' ) |
1157 | ->set( "bt_count=bt_count-$delta" ) |
1158 | ->where( [ 'bt_id' => $targetIds ] ) |
1159 | ->caller( __METHOD__ ) |
1160 | ->execute(); |
1161 | $dbw->newDeleteQueryBuilder() |
1162 | ->deleteFrom( 'block_target' ) |
1163 | ->where( [ |
1164 | 'bt_count<1', |
1165 | 'bt_id' => $targetIds |
1166 | ] ) |
1167 | ->caller( __METHOD__ ) |
1168 | ->execute(); |
1169 | } |
1170 | |
1171 | private function getReplicaDB(): IReadableDatabase { |
1172 | return $this->dbProvider->getReplicaDatabase( $this->wikiId ); |
1173 | } |
1174 | |
1175 | private function getPrimaryDB(): IDatabase { |
1176 | return $this->dbProvider->getPrimaryDatabase( $this->wikiId ); |
1177 | } |
1178 | |
1179 | /** |
1180 | * Insert a block into the block table. Will fail if there is a conflicting |
1181 | * block (same name and options) already in the database. |
1182 | * |
1183 | * @param DatabaseBlock $block |
1184 | * @param int|null $expectedTargetCount The expected number of existing blocks |
1185 | * on the specified target. If this is zero but there is an existing |
1186 | * block, the insertion will fail. |
1187 | * @return bool|array False on failure, assoc array on success: |
1188 | * ('id' => block ID, 'autoIds' => array of autoblock IDs) |
1189 | */ |
1190 | public function insertBlock( |
1191 | DatabaseBlock $block, |
1192 | $expectedTargetCount = 0 |
1193 | ) { |
1194 | $block->assertWiki( $this->wikiId ); |
1195 | |
1196 | $blocker = $block->getBlocker(); |
1197 | if ( !$blocker || $blocker->getName() === '' ) { |
1198 | throw new InvalidArgumentException( 'Cannot insert a block without a blocker set' ); |
1199 | } |
1200 | |
1201 | if ( $expectedTargetCount instanceof IDatabase ) { |
1202 | throw new InvalidArgumentException( |
1203 | 'Old method signature: Passing a custom database connection to ' |
1204 | . 'DatabaseBlockStore::insertBlock is no longer supported' |
1205 | ); |
1206 | } |
1207 | |
1208 | $this->logger->debug( 'Inserting block; timestamp ' . $block->getTimestamp() ); |
1209 | |
1210 | // Purge expired blocks. This now just queues a deferred update, so it |
1211 | // is possible for expired blocks to conflict with inserted blocks below. |
1212 | $this->purgeExpiredBlocks(); |
1213 | |
1214 | $dbw = $this->getPrimaryDB(); |
1215 | $dbw->startAtomic( __METHOD__ ); |
1216 | $success = $this->attemptInsert( $block, $dbw, $expectedTargetCount ); |
1217 | |
1218 | // Don't collide with expired blocks. |
1219 | // Do this after trying to insert to avoid locking. |
1220 | if ( !$success ) { |
1221 | if ( $this->purgeExpiredConflicts( $block, $dbw ) ) { |
1222 | $success = $this->attemptInsert( $block, $dbw, $expectedTargetCount ); |
1223 | } |
1224 | } |
1225 | $dbw->endAtomic( __METHOD__ ); |
1226 | |
1227 | if ( $success ) { |
1228 | $autoBlockIds = $this->doRetroactiveAutoblock( $block ); |
1229 | |
1230 | if ( $this->options->get( MainConfigNames::BlockDisablesLogin ) ) { |
1231 | $targetUserIdentity = $block->getTargetUserIdentity(); |
1232 | if ( $targetUserIdentity ) { |
1233 | $targetUser = $this->userFactory->newFromUserIdentity( $targetUserIdentity ); |
1234 | // TODO: respect the wiki the block belongs to here |
1235 | // Change user login token to force them to be logged out. |
1236 | $targetUser->setToken(); |
1237 | $targetUser->saveSettings(); |
1238 | } |
1239 | } |
1240 | |
1241 | return [ 'id' => $block->getId( $this->wikiId ), 'autoIds' => $autoBlockIds ]; |
1242 | } |
1243 | |
1244 | return false; |
1245 | } |
1246 | |
1247 | /** |
1248 | * Attempt to insert rows into ipblocks/block, block_target and |
1249 | * ipblocks_restrictions. If there is a conflict, return false. |
1250 | * |
1251 | * @param DatabaseBlock $block |
1252 | * @param IDatabase $dbw |
1253 | * @param int|null $expectedTargetCount |
1254 | * @return bool True if block successfully inserted |
1255 | */ |
1256 | private function attemptInsert( |
1257 | DatabaseBlock $block, |
1258 | IDatabase $dbw, |
1259 | $expectedTargetCount |
1260 | ) { |
1261 | $id = null; |
1262 | if ( $this->writeStage & SCHEMA_COMPAT_WRITE_OLD ) { |
1263 | $row = $this->getArrayForBlockUpdate( $block, $dbw, self::SCHEMA_IPBLOCKS ); |
1264 | $dbw->newInsertQueryBuilder() |
1265 | ->insertInto( 'ipblocks' ) |
1266 | ->ignore() |
1267 | ->row( $row ) |
1268 | ->caller( __METHOD__ )->execute(); |
1269 | if ( !$dbw->affectedRows() ) { |
1270 | return false; |
1271 | } |
1272 | $id = $dbw->insertId(); |
1273 | } |
1274 | if ( $this->writeStage & SCHEMA_COMPAT_WRITE_NEW ) { |
1275 | $targetId = $this->acquireTarget( $block, $dbw, $expectedTargetCount ); |
1276 | if ( !$targetId ) { |
1277 | return false; |
1278 | } |
1279 | $row = $this->getArrayForBlockUpdate( $block, $dbw, self::SCHEMA_BLOCK ); |
1280 | if ( $id !== null ) { |
1281 | $row['bl_id'] = $id; |
1282 | } |
1283 | |
1284 | $row['bl_target'] = $targetId; |
1285 | $dbw->newInsertQueryBuilder() |
1286 | ->insertInto( 'block' ) |
1287 | ->row( $row ) |
1288 | ->caller( __METHOD__ )->execute(); |
1289 | if ( !$dbw->affectedRows() ) { |
1290 | return false; |
1291 | } |
1292 | if ( $id === null ) { |
1293 | $id = $dbw->insertId(); |
1294 | } |
1295 | } |
1296 | |
1297 | if ( !$id ) { |
1298 | throw new RuntimeException( 'block insert ID is falsey' ); |
1299 | } |
1300 | $block->setId( $id ); |
1301 | $restrictions = $block->getRawRestrictions(); |
1302 | if ( $restrictions ) { |
1303 | $this->blockRestrictionStore->insert( $restrictions ); |
1304 | } |
1305 | |
1306 | return true; |
1307 | } |
1308 | |
1309 | /** |
1310 | * Purge expired blocks that have the same target as the specified block |
1311 | * |
1312 | * @param DatabaseBlock $block |
1313 | * @param IDatabase $dbw |
1314 | * @return bool True if a conflicting block was deleted |
1315 | */ |
1316 | private function purgeExpiredConflicts( |
1317 | DatabaseBlock $block, |
1318 | IDatabase $dbw |
1319 | ) { |
1320 | $ipblocksIDs = []; |
1321 | $blockDeletionDone = false; |
1322 | // T96428: The ipb_address index uses a prefix on a field, so |
1323 | // use a standard SELECT + DELETE to avoid annoying gap locks. |
1324 | if ( $this->writeStage & SCHEMA_COMPAT_WRITE_OLD ) { |
1325 | $ipblocksIDs = $dbw->newSelectQueryBuilder() |
1326 | ->select( 'ipb_id' ) |
1327 | ->from( 'ipblocks' ) |
1328 | ->where( [ 'ipb_address' => $block->getTargetName() ] ) |
1329 | ->andWhere( $dbw->expr( 'ipb_expiry', '<', $dbw->timestamp() ) ) |
1330 | ->caller( __METHOD__ )->fetchFieldValues(); |
1331 | if ( $ipblocksIDs ) { |
1332 | $ipblocksIDs = array_map( 'intval', $ipblocksIDs ); |
1333 | $dbw->newDeleteQueryBuilder() |
1334 | ->deleteFrom( 'ipblocks' ) |
1335 | ->where( [ 'ipb_id' => $ipblocksIDs ] ) |
1336 | ->caller( __METHOD__ )->execute(); |
1337 | $this->blockRestrictionStore->deleteByBlockId( $ipblocksIDs ); |
1338 | } |
1339 | } |
1340 | if ( $this->writeStage & SCHEMA_COMPAT_WRITE_NEW ) { |
1341 | $targetConds = $this->getTargetConds( $block ); |
1342 | $res = $dbw->newSelectQueryBuilder() |
1343 | ->select( [ 'bl_id', 'bl_target' ] ) |
1344 | ->from( 'block' ) |
1345 | ->join( 'block_target', null, [ 'bt_id=bl_target' ] ) |
1346 | ->where( $targetConds ) |
1347 | ->andWhere( $dbw->expr( 'bl_expiry', '<', $dbw->timestamp() ) ) |
1348 | ->caller( __METHOD__ )->fetchResultSet(); |
1349 | $blockDeletionDone = (bool)$this->deleteBlockRows( $res ); |
1350 | } |
1351 | return $ipblocksIDs || $blockDeletionDone; |
1352 | } |
1353 | |
1354 | /** |
1355 | * Get conditions matching the block's block_target row |
1356 | * |
1357 | * @param DatabaseBlock $block |
1358 | * @return array |
1359 | */ |
1360 | private function getTargetConds( DatabaseBlock $block ) { |
1361 | if ( $block->getType() === Block::TYPE_USER ) { |
1362 | return [ |
1363 | 'bt_user' => $block->getTargetUserIdentity()->getId( $this->wikiId ) |
1364 | ]; |
1365 | } else { |
1366 | return [ 'bt_address' => $block->getTargetName() ]; |
1367 | } |
1368 | } |
1369 | |
1370 | /** |
1371 | * Insert a new block_target row, or update bt_count in the existing target |
1372 | * row for a given block, and return the target ID. |
1373 | * |
1374 | * An atomic section should be active while calling this function. |
1375 | * |
1376 | * @param DatabaseBlock $block |
1377 | * @param IDatabase $dbw |
1378 | * @param int|null $expectedTargetCount If this is zero and a row already |
1379 | * exists, abort the insert and return null. If this is greater than zero |
1380 | * and the pre-increment bt_count value does not match, abort the update |
1381 | * and return null. If this is null, do not perform any conflict checks. |
1382 | * @return int|null |
1383 | */ |
1384 | private function acquireTarget( |
1385 | DatabaseBlock $block, |
1386 | IDatabase $dbw, |
1387 | $expectedTargetCount |
1388 | ) { |
1389 | $isUser = $block->getType() === Block::TYPE_USER; |
1390 | $isRange = $block->getType() === Block::TYPE_RANGE; |
1391 | $isAuto = $block->getType() === Block::TYPE_AUTO; |
1392 | $isSingle = !$isUser && !$isRange; |
1393 | $targetAddress = $isUser ? null : $block->getTargetName(); |
1394 | $targetUserName = $isUser ? $block->getTargetName() : null; |
1395 | $targetUserId = $isUser |
1396 | ? $block->getTargetUserIdentity()->getId( $this->wikiId ) : null; |
1397 | |
1398 | // Update bt_count field in existing target, if there is one |
1399 | if ( $isUser ) { |
1400 | $targetConds = [ 'bt_user' => $targetUserId ]; |
1401 | } else { |
1402 | $targetConds = [ |
1403 | 'bt_address' => $targetAddress, |
1404 | 'bt_auto' => $isAuto, |
1405 | ]; |
1406 | } |
1407 | $condsWithCount = $targetConds; |
1408 | if ( $expectedTargetCount !== null ) { |
1409 | $condsWithCount['bt_count'] = $expectedTargetCount; |
1410 | } |
1411 | |
1412 | // This query locks the index gap when the target doesn't exist yet, |
1413 | // so there is a risk of throttling adjacent block insertions, |
1414 | // especially on small wikis which have larger gaps. If this proves to |
1415 | // be a problem, we could have getPrimaryDB() return an autocommit |
1416 | // connection. |
1417 | $dbw->newUpdateQueryBuilder() |
1418 | ->update( 'block_target' ) |
1419 | ->set( 'bt_count=bt_count+1' ) |
1420 | ->where( $condsWithCount ) |
1421 | ->caller( __METHOD__ )->execute(); |
1422 | $numUpdatedRows = $dbw->affectedRows(); |
1423 | |
1424 | // Now that the row is locked, find the target ID |
1425 | $ids = $dbw->newSelectQueryBuilder() |
1426 | ->select( 'bt_id' ) |
1427 | ->from( 'block_target' ) |
1428 | ->where( $targetConds ) |
1429 | ->caller( __METHOD__ ) |
1430 | ->fetchFieldValues(); |
1431 | if ( count( $ids ) > 1 ) { |
1432 | throw new RuntimeException( "Duplicate block_target rows detected: " . |
1433 | implode( ',', $ids ) ); |
1434 | } |
1435 | $id = $ids[0] ?? false; |
1436 | |
1437 | if ( $id === false ) { |
1438 | if ( $numUpdatedRows ) { |
1439 | throw new RuntimeException( |
1440 | 'block_target row unexpectedly missing after we locked it' ); |
1441 | } |
1442 | if ( $expectedTargetCount !== 0 && $expectedTargetCount !== null ) { |
1443 | // Conflict (expectation failure) |
1444 | return null; |
1445 | } |
1446 | |
1447 | // Insert new row |
1448 | $targetRow = [ |
1449 | 'bt_address' => $targetAddress, |
1450 | 'bt_user' => $targetUserId, |
1451 | 'bt_user_text' => $targetUserName, |
1452 | 'bt_auto' => $isAuto, |
1453 | 'bt_range_start' => $isRange ? $block->getRangeStart() : null, |
1454 | 'bt_range_end' => $isRange ? $block->getRangeEnd() : null, |
1455 | 'bt_ip_hex' => $isSingle || $isRange ? $block->getRangeStart() : null, |
1456 | 'bt_count' => 1 |
1457 | ]; |
1458 | $dbw->newInsertQueryBuilder() |
1459 | ->insertInto( 'block_target' ) |
1460 | ->row( $targetRow ) |
1461 | ->caller( __METHOD__ )->execute(); |
1462 | $id = $dbw->insertId(); |
1463 | if ( !$id ) { |
1464 | throw new RuntimeException( |
1465 | 'block_target insert ID is falsey despite unconditional insert' ); |
1466 | } |
1467 | } elseif ( !$numUpdatedRows ) { |
1468 | // ID found but count update failed -- must be a conflict due to bt_count mismatch |
1469 | return null; |
1470 | } |
1471 | |
1472 | return (int)$id; |
1473 | } |
1474 | |
1475 | /** |
1476 | * Update a block in the DB with new parameters. |
1477 | * The ID field needs to be loaded first. The target must stay the same. |
1478 | * |
1479 | * @param DatabaseBlock $block |
1480 | * @return bool|array False on failure, array on success: |
1481 | * ('id' => block ID, 'autoIds' => array of autoblock IDs) |
1482 | */ |
1483 | public function updateBlock( DatabaseBlock $block ) { |
1484 | $this->logger->debug( 'Updating block; timestamp ' . $block->getTimestamp() ); |
1485 | |
1486 | $block->assertWiki( $this->wikiId ); |
1487 | |
1488 | $blockId = $block->getId( $this->wikiId ); |
1489 | if ( !$blockId ) { |
1490 | throw new InvalidArgumentException( |
1491 | __METHOD__ . " requires that a block id be set\n" |
1492 | ); |
1493 | } |
1494 | |
1495 | $dbw = $this->getPrimaryDB(); |
1496 | |
1497 | $dbw->startAtomic( __METHOD__ ); |
1498 | |
1499 | if ( $this->writeStage & SCHEMA_COMPAT_WRITE_OLD ) { |
1500 | $row = $this->getArrayForBlockUpdate( $block, $dbw, self::SCHEMA_IPBLOCKS ); |
1501 | $dbw->newUpdateQueryBuilder() |
1502 | ->update( 'ipblocks' ) |
1503 | ->set( $row ) |
1504 | ->where( [ 'ipb_id' => $blockId ] ) |
1505 | ->caller( __METHOD__ )->execute(); |
1506 | } |
1507 | if ( $this->writeStage & SCHEMA_COMPAT_WRITE_NEW ) { |
1508 | $row = $this->getArrayForBlockUpdate( $block, $dbw, self::SCHEMA_BLOCK ); |
1509 | $dbw->newUpdateQueryBuilder() |
1510 | ->update( 'block' ) |
1511 | ->set( $row ) |
1512 | ->where( [ 'bl_id' => $blockId ] ) |
1513 | ->caller( __METHOD__ )->execute(); |
1514 | } |
1515 | |
1516 | // Only update the restrictions if they have been modified. |
1517 | $result = true; |
1518 | $restrictions = $block->getRawRestrictions(); |
1519 | if ( $restrictions !== null ) { |
1520 | // An empty array should remove all of the restrictions. |
1521 | if ( $restrictions === [] ) { |
1522 | $result = $this->blockRestrictionStore->deleteByBlockId( $blockId ); |
1523 | } else { |
1524 | $result = $this->blockRestrictionStore->update( $restrictions ); |
1525 | } |
1526 | } |
1527 | |
1528 | if ( $block->isAutoblocking() ) { |
1529 | // Update corresponding autoblock(s) (T50813) |
1530 | if ( $this->writeStage & SCHEMA_COMPAT_WRITE_OLD ) { |
1531 | $dbw->newUpdateQueryBuilder() |
1532 | ->update( 'ipblocks' ) |
1533 | ->set( $this->getArrayForAutoblockUpdate( $block, self::SCHEMA_IPBLOCKS ) ) |
1534 | ->where( [ 'ipb_parent_block_id' => $blockId ] ) |
1535 | ->caller( __METHOD__ )->execute(); |
1536 | } |
1537 | if ( $this->writeStage & SCHEMA_COMPAT_WRITE_NEW ) { |
1538 | $dbw->newUpdateQueryBuilder() |
1539 | ->update( 'block' ) |
1540 | ->set( $this->getArrayForAutoblockUpdate( $block, self::SCHEMA_BLOCK ) ) |
1541 | ->where( [ 'bl_parent_block_id' => $blockId ] ) |
1542 | ->caller( __METHOD__ )->execute(); |
1543 | } |
1544 | |
1545 | // Only update the restrictions if they have been modified. |
1546 | if ( $restrictions !== null ) { |
1547 | $this->blockRestrictionStore->updateByParentBlockId( |
1548 | $blockId, |
1549 | $restrictions |
1550 | ); |
1551 | } |
1552 | } else { |
1553 | // Autoblock no longer required, delete corresponding autoblock(s) |
1554 | $this->deleteBlocksMatchingConds( [ 'bl_parent_block_id' => $blockId ] ); |
1555 | } |
1556 | |
1557 | $dbw->endAtomic( __METHOD__ ); |
1558 | |
1559 | if ( $result ) { |
1560 | $autoBlockIds = $this->doRetroactiveAutoblock( $block ); |
1561 | return [ 'id' => $blockId, 'autoIds' => $autoBlockIds ]; |
1562 | } |
1563 | |
1564 | return false; |
1565 | } |
1566 | |
1567 | /** |
1568 | * Update the target in the specified object and in the database. The block |
1569 | * ID must be set. |
1570 | * |
1571 | * This is an unusual operation, currently used only by the UserMerge |
1572 | * extension. |
1573 | * |
1574 | * @since 1.42 |
1575 | * @param DatabaseBlock $block |
1576 | * @param UserIdentity|string $newTarget |
1577 | * @return bool True if the update was successful, false if there was no |
1578 | * match for the block ID. |
1579 | */ |
1580 | public function updateTarget( DatabaseBlock $block, $newTarget ) { |
1581 | $dbw = $this->getPrimaryDB(); |
1582 | $blockId = $block->getId( $this->wikiId ); |
1583 | if ( !$blockId ) { |
1584 | throw new InvalidArgumentException( |
1585 | __METHOD__ . " requires that a block id be set\n" |
1586 | ); |
1587 | } |
1588 | |
1589 | $oldTargetConds = $this->getTargetConds( $block ); |
1590 | $block->setTarget( $newTarget ); |
1591 | |
1592 | $affected = 0; |
1593 | if ( $this->writeStage & SCHEMA_COMPAT_WRITE_OLD ) { |
1594 | if ( $block->getTargetUserIdentity() ) { |
1595 | $userId = $block->getTargetUserIdentity()->getId( $this->wikiId ); |
1596 | } else { |
1597 | $userId = 0; |
1598 | } |
1599 | $dbw->newUpdateQueryBuilder() |
1600 | ->update( 'ipblocks' ) |
1601 | ->set( [ |
1602 | 'ipb_address' => $block->getTargetName(), |
1603 | 'ipb_user' => $userId, |
1604 | ] ) |
1605 | ->where( [ 'ipb_id' => $blockId ] ) |
1606 | ->caller( __METHOD__ ) |
1607 | ->execute(); |
1608 | $affected = $dbw->affectedRows(); |
1609 | } |
1610 | if ( $this->writeStage & SCHEMA_COMPAT_WRITE_NEW ) { |
1611 | $dbw->startAtomic( __METHOD__ ); |
1612 | $targetId = $this->acquireTarget( $block, $dbw, null ); |
1613 | if ( !$targetId ) { |
1614 | // This is an exotic and unlikely error -- perhaps an exception should be thrown |
1615 | $dbw->endAtomic( __METHOD__ ); |
1616 | return false; |
1617 | } |
1618 | $oldTargetId = $dbw->newSelectQueryBuilder() |
1619 | ->select( 'bt_id' ) |
1620 | ->from( 'block_target' ) |
1621 | ->where( $oldTargetConds ) |
1622 | ->caller( __METHOD__ )->fetchField(); |
1623 | $this->releaseTargets( $dbw, [ $oldTargetId ] ); |
1624 | |
1625 | $dbw->newUpdateQueryBuilder() |
1626 | ->update( 'block' ) |
1627 | ->set( [ 'bl_target' => $targetId ] ) |
1628 | ->where( [ 'bl_id' => $blockId ] ) |
1629 | ->caller( __METHOD__ ) |
1630 | ->execute(); |
1631 | $affected = max( $affected, $dbw->affectedRows() ); |
1632 | $dbw->endAtomic( __METHOD__ ); |
1633 | } |
1634 | return (bool)$affected; |
1635 | } |
1636 | |
1637 | /** |
1638 | * Delete a DatabaseBlock from the database |
1639 | * |
1640 | * @param DatabaseBlock $block |
1641 | * @return bool whether it was deleted |
1642 | */ |
1643 | public function deleteBlock( DatabaseBlock $block ): bool { |
1644 | if ( $this->readOnlyMode->isReadOnly( $this->wikiId ) ) { |
1645 | return false; |
1646 | } |
1647 | |
1648 | $block->assertWiki( $this->wikiId ); |
1649 | |
1650 | $blockId = $block->getId( $this->wikiId ); |
1651 | |
1652 | if ( !$blockId ) { |
1653 | throw new InvalidArgumentException( |
1654 | __METHOD__ . " requires that a block id be set\n" |
1655 | ); |
1656 | } |
1657 | $dbw = $this->getPrimaryDB(); |
1658 | $dbw->startAtomic( __METHOD__ ); |
1659 | $affected = 0; |
1660 | if ( $this->writeStage & SCHEMA_COMPAT_WRITE_OLD ) { |
1661 | $ids = $dbw->newSelectQueryBuilder() |
1662 | ->select( 'ipb_id' ) |
1663 | ->from( 'ipblocks' ) |
1664 | ->where( [ 'ipb_parent_block_id' => $blockId ] ) |
1665 | ->caller( __METHOD__ )->fetchFieldValues(); |
1666 | $ids = array_map( 'intval', $ids ); |
1667 | $ids[] = $blockId; |
1668 | |
1669 | $this->blockRestrictionStore->deleteByBlockId( $ids ); |
1670 | $dbw->newDeleteQueryBuilder() |
1671 | ->deleteFrom( 'ipblocks' ) |
1672 | ->where( [ 'ipb_id' => $ids ] ) |
1673 | ->caller( __METHOD__ )->execute(); |
1674 | $affected = $dbw->affectedRows(); |
1675 | } |
1676 | if ( $this->writeStage & SCHEMA_COMPAT_WRITE_NEW ) { |
1677 | $res = $dbw->newSelectQueryBuilder() |
1678 | ->select( [ 'bl_id', 'bl_target' ] ) |
1679 | ->from( 'block' ) |
1680 | ->where( |
1681 | $dbw->makeList( [ |
1682 | 'bl_parent_block_id' => $blockId, |
1683 | 'bl_id' => $blockId, |
1684 | ], IDatabase::LIST_OR ) |
1685 | ) |
1686 | ->caller( __METHOD__ )->fetchResultSet(); |
1687 | $this->deleteBlockRows( $res ); |
1688 | $affected = max( $affected, $res->numRows() ); |
1689 | } |
1690 | $dbw->endAtomic( __METHOD__ ); |
1691 | |
1692 | return $affected > 0; |
1693 | } |
1694 | |
1695 | /** |
1696 | * Get an array suitable for passing to $dbw->insert() or $dbw->update() |
1697 | * |
1698 | * @param DatabaseBlock $block |
1699 | * @param IDatabase $dbw Database to use if not the same as the one in the load balancer. |
1700 | * Must connect to the wiki identified by $block->getBlocker->getWikiId(). |
1701 | * @param string $schema self:SCHEMA_IPBLOCKS or self::SCHEMA_BLOCK |
1702 | * @return array |
1703 | */ |
1704 | private function getArrayForBlockUpdate( |
1705 | DatabaseBlock $block, |
1706 | IDatabase $dbw, |
1707 | $schema |
1708 | ): array { |
1709 | $expiry = $dbw->encodeExpiry( $block->getExpiry() ); |
1710 | |
1711 | if ( $block->getTargetUserIdentity() ) { |
1712 | $userId = $block->getTargetUserIdentity()->getId( $this->wikiId ); |
1713 | } else { |
1714 | $userId = 0; |
1715 | } |
1716 | $blocker = $block->getBlocker(); |
1717 | if ( !$blocker ) { |
1718 | throw new RuntimeException( __METHOD__ . ': this block does not have a blocker' ); |
1719 | } |
1720 | // DatabaseBlockStore supports inserting cross-wiki blocks by passing |
1721 | // non-local IDatabase and blocker. |
1722 | $blockerActor = $this->actorStoreFactory |
1723 | ->getActorStore( $dbw->getDomainID() ) |
1724 | ->acquireActorId( $blocker, $dbw ); |
1725 | |
1726 | if ( $schema === self::SCHEMA_IPBLOCKS ) { |
1727 | $blockArray = [ |
1728 | 'ipb_address' => $block->getTargetName(), |
1729 | 'ipb_user' => $userId, |
1730 | 'ipb_by_actor' => $blockerActor, |
1731 | 'ipb_timestamp' => $dbw->timestamp( $block->getTimestamp() ), |
1732 | 'ipb_auto' => $block->getType() === AbstractBlock::TYPE_AUTO, |
1733 | 'ipb_anon_only' => !$block->isHardblock(), |
1734 | 'ipb_create_account' => $block->isCreateAccountBlocked(), |
1735 | 'ipb_enable_autoblock' => $block->isAutoblocking(), |
1736 | 'ipb_expiry' => $expiry, |
1737 | 'ipb_range_start' => $block->getRangeStart(), |
1738 | 'ipb_range_end' => $block->getRangeEnd(), |
1739 | 'ipb_deleted' => intval( $block->getHideName() ), // typecast required for SQLite |
1740 | 'ipb_block_email' => $block->isEmailBlocked(), |
1741 | 'ipb_allow_usertalk' => $block->isUsertalkEditAllowed(), |
1742 | 'ipb_parent_block_id' => $block->getParentBlockId(), |
1743 | 'ipb_sitewide' => $block->isSitewide(), |
1744 | ]; |
1745 | $commentArray = $this->commentStore->insert( |
1746 | $dbw, |
1747 | 'ipb_reason', |
1748 | $block->getReasonComment() |
1749 | ); |
1750 | } else { |
1751 | $blockArray = [ |
1752 | 'bl_by_actor' => $blockerActor, |
1753 | 'bl_timestamp' => $dbw->timestamp( $block->getTimestamp() ), |
1754 | 'bl_anon_only' => !$block->isHardblock(), |
1755 | 'bl_create_account' => $block->isCreateAccountBlocked(), |
1756 | 'bl_enable_autoblock' => $block->isAutoblocking(), |
1757 | 'bl_expiry' => $expiry, |
1758 | 'bl_deleted' => intval( $block->getHideName() ), // typecast required for SQLite |
1759 | 'bl_block_email' => $block->isEmailBlocked(), |
1760 | 'bl_allow_usertalk' => $block->isUsertalkEditAllowed(), |
1761 | 'bl_parent_block_id' => $block->getParentBlockId(), |
1762 | 'bl_sitewide' => $block->isSitewide(), |
1763 | ]; |
1764 | $commentArray = $this->commentStore->insert( |
1765 | $dbw, |
1766 | 'bl_reason', |
1767 | $block->getReasonComment() |
1768 | ); |
1769 | } |
1770 | |
1771 | $combinedArray = $blockArray + $commentArray; |
1772 | return $combinedArray; |
1773 | } |
1774 | |
1775 | /** |
1776 | * Get an array suitable for autoblock updates |
1777 | * |
1778 | * @param DatabaseBlock $block |
1779 | * @param string $schema |
1780 | * @return array |
1781 | */ |
1782 | private function getArrayForAutoblockUpdate( DatabaseBlock $block, $schema ): array { |
1783 | $blocker = $block->getBlocker(); |
1784 | if ( !$blocker ) { |
1785 | throw new RuntimeException( __METHOD__ . ': this block does not have a blocker' ); |
1786 | } |
1787 | $dbw = $this->getPrimaryDB(); |
1788 | $blockerActor = $this->actorStoreFactory |
1789 | ->getActorNormalization( $this->wikiId ) |
1790 | ->acquireActorId( $blocker, $dbw ); |
1791 | if ( $schema === self::SCHEMA_IPBLOCKS ) { |
1792 | $blockArray = [ |
1793 | 'ipb_by_actor' => $blockerActor, |
1794 | 'ipb_create_account' => $block->isCreateAccountBlocked(), |
1795 | 'ipb_deleted' => (int)$block->getHideName(), // typecast required for SQLite |
1796 | 'ipb_allow_usertalk' => $block->isUsertalkEditAllowed(), |
1797 | 'ipb_sitewide' => $block->isSitewide(), |
1798 | ]; |
1799 | |
1800 | if ( $block->getExpiry() !== 'infinity' ) { |
1801 | // Shorten the autoblock expiry if the parent block expiry is sooner. |
1802 | // Don't lengthen -- that is only done when the IP address is actually |
1803 | // used by the blocked user. |
1804 | $blockArray[] = 'ipb_expiry=' . $dbw->conditional( |
1805 | $dbw->expr( 'ipb_expiry', '>', $dbw->timestamp( $block->getExpiry() ) ), |
1806 | $dbw->addQuotes( $dbw->timestamp( $block->getExpiry() ) ), |
1807 | 'ipb_expiry' |
1808 | ); |
1809 | } |
1810 | |
1811 | $commentArray = $this->commentStore->insert( |
1812 | $dbw, |
1813 | 'ipb_reason', |
1814 | $this->getAutoblockReason( $block ) |
1815 | ); |
1816 | } else { |
1817 | $blockArray = [ |
1818 | 'bl_by_actor' => $blockerActor, |
1819 | 'bl_create_account' => $block->isCreateAccountBlocked(), |
1820 | 'bl_deleted' => (int)$block->getHideName(), // typecast required for SQLite |
1821 | 'bl_allow_usertalk' => $block->isUsertalkEditAllowed(), |
1822 | 'bl_sitewide' => $block->isSitewide(), |
1823 | ]; |
1824 | |
1825 | // Shorten the autoblock expiry if the parent block expiry is sooner. |
1826 | // Don't lengthen -- that is only done when the IP address is actually |
1827 | // used by the blocked user. |
1828 | if ( $block->getExpiry() !== 'infinity' ) { |
1829 | $blockArray[] = 'bl_expiry=' . $dbw->conditional( |
1830 | $dbw->expr( 'bl_expiry', '>', $dbw->timestamp( $block->getExpiry() ) ), |
1831 | $dbw->addQuotes( $dbw->timestamp( $block->getExpiry() ) ), |
1832 | 'bl_expiry' |
1833 | ); |
1834 | } |
1835 | |
1836 | $commentArray = $this->commentStore->insert( |
1837 | $dbw, |
1838 | 'bl_reason', |
1839 | $this->getAutoblockReason( $block ) |
1840 | ); |
1841 | } |
1842 | |
1843 | $combinedArray = $blockArray + $commentArray; |
1844 | return $combinedArray; |
1845 | } |
1846 | |
1847 | /** |
1848 | * Handle retroactively autoblocking the last IP used by the user (if it is a user) |
1849 | * blocked by an auto block. |
1850 | * |
1851 | * @param DatabaseBlock $block |
1852 | * @return array IDs of retroactive autoblocks made |
1853 | */ |
1854 | private function doRetroactiveAutoblock( DatabaseBlock $block ): array { |
1855 | $autoBlockIds = []; |
1856 | // If autoblock is enabled, autoblock the LAST IP(s) used |
1857 | if ( $block->isAutoblocking() && $block->getType() == AbstractBlock::TYPE_USER ) { |
1858 | $this->logger->debug( |
1859 | 'Doing retroactive autoblocks for ' . $block->getTargetName() |
1860 | ); |
1861 | |
1862 | $hookAutoBlocked = []; |
1863 | $continue = $this->hookRunner->onPerformRetroactiveAutoblock( |
1864 | $block, |
1865 | $hookAutoBlocked |
1866 | ); |
1867 | |
1868 | if ( $continue ) { |
1869 | $coreAutoBlocked = $this->performRetroactiveAutoblock( $block ); |
1870 | $autoBlockIds = array_merge( $hookAutoBlocked, $coreAutoBlocked ); |
1871 | } else { |
1872 | $autoBlockIds = $hookAutoBlocked; |
1873 | } |
1874 | } |
1875 | return $autoBlockIds; |
1876 | } |
1877 | |
1878 | /** |
1879 | * Actually retroactively autoblocks the last IP used by the user (if it is a user) |
1880 | * blocked by this block. This will use the recentchanges table. |
1881 | * |
1882 | * @param DatabaseBlock $block |
1883 | * @return array |
1884 | */ |
1885 | private function performRetroactiveAutoblock( DatabaseBlock $block ): array { |
1886 | if ( !$this->options->get( MainConfigNames::PutIPinRC ) ) { |
1887 | // No IPs in the recent changes table to autoblock |
1888 | return []; |
1889 | } |
1890 | |
1891 | $type = $block->getType(); |
1892 | if ( $type !== AbstractBlock::TYPE_USER ) { |
1893 | // Autoblocks only apply to users |
1894 | return []; |
1895 | } |
1896 | |
1897 | $dbr = $this->getReplicaDB(); |
1898 | |
1899 | $targetUser = $block->getTargetUserIdentity(); |
1900 | $actor = $targetUser ? $this->actorStoreFactory |
1901 | ->getActorNormalization( $this->wikiId ) |
1902 | ->findActorId( $targetUser, $dbr ) : null; |
1903 | |
1904 | if ( !$actor ) { |
1905 | $this->logger->debug( 'No actor found to retroactively autoblock' ); |
1906 | return []; |
1907 | } |
1908 | |
1909 | $rcIp = $dbr->newSelectQueryBuilder() |
1910 | ->select( 'rc_ip' ) |
1911 | ->from( 'recentchanges' ) |
1912 | ->where( [ 'rc_actor' => $actor ] ) |
1913 | ->orderBy( 'rc_timestamp', SelectQueryBuilder::SORT_DESC ) |
1914 | ->caller( __METHOD__ )->fetchField(); |
1915 | |
1916 | if ( !$rcIp ) { |
1917 | $this->logger->debug( 'No IP found to retroactively autoblock' ); |
1918 | return []; |
1919 | } |
1920 | |
1921 | $id = $this->doAutoblock( $block, $rcIp ); |
1922 | if ( !$id ) { |
1923 | return []; |
1924 | } |
1925 | return [ $id ]; |
1926 | } |
1927 | |
1928 | /** |
1929 | * Autoblocks the given IP, referring to the specified block. |
1930 | * |
1931 | * @since 1.42 |
1932 | * @param DatabaseBlock $parentBlock |
1933 | * @param string $autoblockIP The IP to autoblock. |
1934 | * @return int|false ID if an autoblock was inserted, false if not. |
1935 | */ |
1936 | public function doAutoblock( DatabaseBlock $parentBlock, $autoblockIP ) { |
1937 | // If autoblocks are disabled, go away. |
1938 | if ( !$parentBlock->isAutoblocking() ) { |
1939 | return false; |
1940 | } |
1941 | $parentBlock->assertWiki( $this->wikiId ); |
1942 | |
1943 | [ $target, $type ] = $this->blockUtils->parseBlockTarget( $autoblockIP ); |
1944 | if ( $type != Block::TYPE_IP ) { |
1945 | $this->logger->debug( "Autoblock not supported for ip ranges." ); |
1946 | return false; |
1947 | } |
1948 | $target = (string)$target; |
1949 | |
1950 | // Check if autoblock exempt. |
1951 | if ( $this->autoblockExemptionList->isExempt( $target ) ) { |
1952 | return false; |
1953 | } |
1954 | |
1955 | // Allow hooks to cancel the autoblock. |
1956 | if ( !$this->hookRunner->onAbortAutoblock( $target, $parentBlock ) ) { |
1957 | $this->logger->debug( "Autoblock aborted by hook." ); |
1958 | return false; |
1959 | } |
1960 | |
1961 | // It's okay to autoblock. Go ahead and insert/update the block... |
1962 | |
1963 | // Do not add a *new* block if the IP is already blocked. |
1964 | $blocks = $this->newLoad( $target, Block::TYPE_IP, false ); |
1965 | if ( $blocks ) { |
1966 | foreach ( $blocks as $ipblock ) { |
1967 | // Check if the block is an autoblock and would exceed the user block |
1968 | // if renewed. If so, do nothing, otherwise prolong the block time... |
1969 | if ( $ipblock->getType() === Block::TYPE_AUTO |
1970 | && $parentBlock->getExpiry() > $ipblock->getExpiry() |
1971 | ) { |
1972 | // Reset block timestamp to now and its expiry to |
1973 | // $wgAutoblockExpiry in the future |
1974 | $this->updateTimestamp( $ipblock ); |
1975 | } |
1976 | } |
1977 | return false; |
1978 | } |
1979 | $blocker = $parentBlock->getBlocker(); |
1980 | if ( !$blocker ) { |
1981 | throw new RuntimeException( __METHOD__ . ': this block does not have a blocker' ); |
1982 | } |
1983 | |
1984 | $timestamp = wfTimestampNow(); |
1985 | $expiry = $this->getAutoblockExpiry( $timestamp, $parentBlock->getExpiry() ); |
1986 | $autoblock = new DatabaseBlock( [ |
1987 | 'wiki' => $this->wikiId, |
1988 | 'address' => UserIdentityValue::newAnonymous( $target, $this->wikiId ), |
1989 | 'by' => $blocker, |
1990 | 'reason' => $this->getAutoblockReason( $parentBlock ), |
1991 | 'decodedTimestamp' => $timestamp, |
1992 | 'auto' => true, |
1993 | 'createAccount' => $parentBlock->isCreateAccountBlocked(), |
1994 | // Continue suppressing the name if needed |
1995 | 'hideName' => $parentBlock->getHideName(), |
1996 | 'allowUsertalk' => $parentBlock->isUsertalkEditAllowed(), |
1997 | 'parentBlockId' => $parentBlock->getId( $this->wikiId ), |
1998 | 'sitewide' => $parentBlock->isSitewide(), |
1999 | 'restrictions' => $parentBlock->getRestrictions(), |
2000 | 'decodedExpiry' => $expiry, |
2001 | ] ); |
2002 | |
2003 | $this->logger->debug( "Autoblocking {$parentBlock->getTargetName()}@" . $target ); |
2004 | |
2005 | $status = $this->insertBlock( $autoblock ); |
2006 | return $status |
2007 | ? $status['id'] |
2008 | : false; |
2009 | } |
2010 | |
2011 | private function getAutoblockReason( DatabaseBlock $parentBlock ) { |
2012 | return wfMessage( |
2013 | 'autoblocker', |
2014 | $parentBlock->getTargetName(), |
2015 | $parentBlock->getReasonComment()->text |
2016 | )->inContentLanguage()->plain(); |
2017 | } |
2018 | |
2019 | /** |
2020 | * Update the timestamp on autoblocks. |
2021 | * |
2022 | * @internal Public to support deprecated DatabaseBlock::updateTimestamp() |
2023 | * @param DatabaseBlock $block |
2024 | */ |
2025 | public function updateTimestamp( DatabaseBlock $block ) { |
2026 | $block->assertWiki( $this->wikiId ); |
2027 | if ( $block->getType() !== Block::TYPE_AUTO ) { |
2028 | return; |
2029 | } |
2030 | $now = wfTimestamp(); |
2031 | $block->setTimestamp( $now ); |
2032 | // No need to reduce the autoblock expiry to the expiry of the parent |
2033 | // block, since the caller already checked for that. |
2034 | $block->setExpiry( $this->getAutoblockExpiry( $now ) ); |
2035 | |
2036 | $dbw = $this->getPrimaryDB(); |
2037 | if ( $this->writeStage & SCHEMA_COMPAT_WRITE_OLD ) { |
2038 | $dbw->newUpdateQueryBuilder() |
2039 | ->update( 'ipblocks' ) |
2040 | ->set( |
2041 | [ |
2042 | 'ipb_timestamp' => $dbw->timestamp( $block->getTimestamp() ), |
2043 | 'ipb_expiry' => $dbw->timestamp( $block->getExpiry() ), |
2044 | ] |
2045 | ) |
2046 | ->where( [ 'ipb_id' => $block->getId( $this->wikiId ) ] ) |
2047 | ->caller( __METHOD__ )->execute(); |
2048 | } |
2049 | if ( $this->writeStage & SCHEMA_COMPAT_WRITE_NEW ) { |
2050 | $dbw->newUpdateQueryBuilder() |
2051 | ->update( 'block' ) |
2052 | ->set( |
2053 | [ |
2054 | 'bl_timestamp' => $dbw->timestamp( $block->getTimestamp() ), |
2055 | 'bl_expiry' => $dbw->timestamp( $block->getExpiry() ), |
2056 | ] |
2057 | ) |
2058 | ->where( [ 'bl_id' => $block->getId( $this->wikiId ) ] ) |
2059 | ->caller( __METHOD__ )->execute(); |
2060 | } |
2061 | } |
2062 | |
2063 | /** |
2064 | * Get the expiry timestamp for an autoblock created at the given time. |
2065 | * |
2066 | * If the parent block expiry is specified, the return value will be earlier |
2067 | * than or equal to the parent block expiry. |
2068 | * |
2069 | * @internal Public to support deprecated DatabaseBlock method |
2070 | * @param string|int $timestamp |
2071 | * @param string|null $parentExpiry |
2072 | * @return string |
2073 | */ |
2074 | public function getAutoblockExpiry( $timestamp, string $parentExpiry = null ) { |
2075 | $maxDuration = $this->options->get( MainConfigNames::AutoblockExpiry ); |
2076 | $expiry = wfTimestamp( TS_MW, (int)wfTimestamp( TS_UNIX, $timestamp ) + $maxDuration ); |
2077 | if ( $parentExpiry !== null && $parentExpiry !== 'infinity' ) { |
2078 | $expiry = min( $parentExpiry, $expiry ); |
2079 | } |
2080 | return $expiry; |
2081 | } |
2082 | |
2083 | // endregion -- end of database write methods |
2084 | |
2085 | } |