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| 1 | <?php |
| 2 | |
| 3 | namespace Flow\Maintenance; |
| 4 | |
| 5 | use BatchRowIterator; |
| 6 | use Flow\Container; |
| 7 | use Flow\Data\ManagerGroup; |
| 8 | use Flow\DbFactory; |
| 9 | use Flow\Model\AbstractRevision; |
| 10 | use Flow\Model\UUID; |
| 11 | use LoggedUpdateMaintenance; |
| 12 | use MediaWiki\WikiMap\WikiMap; |
| 13 | use ReflectionProperty; |
| 14 | |
| 15 | $IP = getenv( 'MW_INSTALL_PATH' ); |
| 16 | if ( $IP === false ) { |
| 17 | $IP = __DIR__ . '/../../..'; |
| 18 | } |
| 19 | |
| 20 | require_once "$IP/maintenance/Maintenance.php"; |
| 21 | |
| 22 | /** |
| 23 | * @ingroup Maintenance |
| 24 | */ |
| 25 | class FlowUpdateRevisionContentLength extends LoggedUpdateMaintenance { |
| 26 | /** |
| 27 | * Map from AbstractRevision::getRevisionType() to the class that holds |
| 28 | * that type. |
| 29 | * @todo seems this should be elsewhere for access by any code |
| 30 | * |
| 31 | * @var string[] |
| 32 | */ |
| 33 | private static $revisionTypes = [ |
| 34 | 'post' => \Flow\Model\PostRevision::class, |
| 35 | 'header' => \Flow\Model\Header::class, |
| 36 | 'post-summary' => \Flow\Model\PostSummary::class, |
| 37 | ]; |
| 38 | |
| 39 | /** |
| 40 | * @var DbFactory |
| 41 | */ |
| 42 | protected $dbFactory; |
| 43 | |
| 44 | /** |
| 45 | * @var ManagerGroup |
| 46 | */ |
| 47 | protected $storage; |
| 48 | |
| 49 | /** |
| 50 | * @var ReflectionProperty |
| 51 | */ |
| 52 | protected $contentLengthProperty; |
| 53 | |
| 54 | /** |
| 55 | * @var ReflectionProperty |
| 56 | */ |
| 57 | protected $previousContentLengthProperty; |
| 58 | |
| 59 | public function __construct() { |
| 60 | parent::__construct(); |
| 61 | $this->addDescription( "Updates content length for revisions with unset content length." ); |
| 62 | $this->setBatchSize( 300 ); |
| 63 | $this->requireExtension( 'Flow' ); |
| 64 | } |
| 65 | |
| 66 | public function getUpdateKey() { |
| 67 | return 'FlowUpdateRevisionContentLength:version2'; |
| 68 | } |
| 69 | |
| 70 | public function doDBUpdates() { |
| 71 | // Can't be done in constructor, happens too early in |
| 72 | // boot process |
| 73 | $this->dbFactory = Container::get( 'db.factory' ); |
| 74 | $this->storage = Container::get( 'storage' ); |
| 75 | // Since this is a one-shot maintenance script just reach in via reflection |
| 76 | // to change lengths |
| 77 | $this->contentLengthProperty = new ReflectionProperty( |
| 78 | AbstractRevision::class, |
| 79 | 'contentLength' |
| 80 | ); |
| 81 | $this->contentLengthProperty->setAccessible( true ); |
| 82 | $this->previousContentLengthProperty = new ReflectionProperty( |
| 83 | AbstractRevision::class, |
| 84 | 'previousContentLength' |
| 85 | ); |
| 86 | $this->previousContentLengthProperty->setAccessible( true ); |
| 87 | |
| 88 | $dbw = $this->dbFactory->getDB( DB_PRIMARY ); |
| 89 | // Walk through the flow_revision table |
| 90 | $it = new BatchRowIterator( |
| 91 | $dbw, |
| 92 | /* table = */'flow_revision', |
| 93 | /* primary key = */'rev_id', |
| 94 | $this->getBatchSize() |
| 95 | ); |
| 96 | // Only fetch rows created by users from the current wiki. |
| 97 | $it->addConditions( [ |
| 98 | 'rev_user_wiki' => WikiMap::getCurrentWikiId(), |
| 99 | ] ); |
| 100 | // We only need the id and type field |
| 101 | $it->setFetchColumns( [ 'rev_id', 'rev_type' ] ); |
| 102 | |
| 103 | $it->setCaller( __METHOD__ ); |
| 104 | |
| 105 | $total = $fail = 0; |
| 106 | foreach ( $it as $batch ) { |
| 107 | $this->beginTransaction( $dbw, __METHOD__ ); |
| 108 | foreach ( $batch as $row ) { |
| 109 | $total++; |
| 110 | if ( !isset( self::$revisionTypes[$row->rev_type] ) ) { |
| 111 | $this->output( 'Unknown revision type: ' . $row->rev_type ); |
| 112 | $fail++; |
| 113 | continue; |
| 114 | } |
| 115 | $om = $this->storage->getStorage( self::$revisionTypes[$row->rev_type] ); |
| 116 | $revId = UUID::create( $row->rev_id ); |
| 117 | $obj = $om->get( $revId ); |
| 118 | if ( !$obj ) { |
| 119 | $this->output( 'Could not load revision: ' . $revId->getAlphadecimal() ); |
| 120 | $fail++; |
| 121 | continue; |
| 122 | } |
| 123 | if ( $obj->isFirstRevision() ) { |
| 124 | $previous = null; |
| 125 | } else { |
| 126 | $previous = $om->get( $obj->getPrevRevisionId() ); |
| 127 | if ( !$previous ) { |
| 128 | $this->output( 'Could not locate previous revision: ' . |
| 129 | $obj->getPrevRevisionId()->getAlphadecimal() ); |
| 130 | $fail++; |
| 131 | continue; |
| 132 | } |
| 133 | } |
| 134 | |
| 135 | $this->updateRevision( $obj, $previous ); |
| 136 | |
| 137 | try { |
| 138 | $om->put( $obj ); |
| 139 | } catch ( \Exception $e ) { |
| 140 | $this->error( |
| 141 | 'Failed to update revision ' . $obj->getRevisionId()->getAlphadecimal() . |
| 142 | ': ' . $e->getMessage() . "\n" . |
| 143 | 'Please make sure rev_content, rev_content_length, rev_flags & ' . |
| 144 | 'rev_previous_content_length are part of RevisionStorage::$allowedUpdateColumns.' |
| 145 | ); |
| 146 | throw $e; |
| 147 | } |
| 148 | $this->output( '.' ); |
| 149 | } |
| 150 | $this->commitTransaction( $dbw, __METHOD__ ); |
| 151 | $this->storage->clear(); |
| 152 | $this->dbFactory->waitForReplicas(); |
| 153 | } |
| 154 | |
| 155 | return true; |
| 156 | } |
| 157 | |
| 158 | protected function updateRevision( AbstractRevision $revision, AbstractRevision $previous = null ) { |
| 159 | $this->contentLengthProperty->setValue( |
| 160 | $revision, |
| 161 | $this->calcContentLength( $revision ) |
| 162 | ); |
| 163 | if ( $previous !== null ) { |
| 164 | $this->previousContentLengthProperty->setValue( |
| 165 | $revision, |
| 166 | $this->calcContentLength( $previous ) |
| 167 | ); |
| 168 | } |
| 169 | } |
| 170 | |
| 171 | protected function calcContentLength( AbstractRevision $revision ) { |
| 172 | if ( $revision->isModerated() && !$revision->isLocked() ) { |
| 173 | return 0; |
| 174 | } else { |
| 175 | return $revision->getContentLength() ?: $revision->calculateContentLength(); |
| 176 | } |
| 177 | } |
| 178 | } |
| 179 | |
| 180 | $maintClass = FlowUpdateRevisionContentLength::class; |
| 181 | require_once RUN_MAINTENANCE_IF_MAIN; |