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<?php /** * Helper class for representing operations with transaction support. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License along * with this program; if not, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. * http://www.gnu.org/copyleft/gpl.html * * @file * @ingroup FileBackend */ namespace Wikimedia\FileBackend\FileOps; use StatusValue; use Wikimedia\AtEase\AtEase; /** * Store a file into the backend from a file on the file system. * Parameters for this operation are outlined in FileBackend::doOperations(). */ class StoreFileOp extends FileOp { protected function allowedParams() { return [ [ 'src', 'dst' ], [ 'overwrite', 'overwriteSame', 'headers' ], [ 'src', 'dst' ] ]; } protected function doPrecheck( FileStatePredicates $opPredicates, FileStatePredicates $batchPredicates ) { $status = StatusValue::newGood(); // Check if the source file exists in the file system if ( !is_file( $this->params['src'] ) ) { $status->fatal( 'backend-fail-notexists', $this->params['src'] ); return $status; } // Check if the source file is too big $sourceSize = $this->getSourceSize(); $maxFileSize = $this->backend->maxFileSizeInternal(); if ( $sourceSize > $maxFileSize ) { $status->fatal( 'backend-fail-maxsize', $this->params['dst'], $maxFileSize ); return $status; } // Check if an incompatible destination file exists $sourceSha1 = function () { static $sha1 = null; $sha1 ??= $this->getSourceSha1Base36(); return $sha1; }; $status->merge( $this->precheckDestExistence( $opPredicates, $sourceSize, $sourceSha1 ) ); $this->params['dstExists'] = $this->destExists; // see FileBackendStore::setFileCache() // Update file existence predicates if the operation is expected to be allowed to run if ( $status->isOK() ) { $batchPredicates->assumeFileExists( $this->params['dst'], $sourceSize, $sourceSha1 ); } return $status; // safe to call attempt() } protected function doAttempt() { if ( $this->overwriteSameCase ) { $status = StatusValue::newGood(); // nothing to do } else { // Store the file at the destination $status = $this->backend->storeInternal( $this->setFlags( $this->params ) ); } return $status; } protected function getSourceSize() { AtEase::suppressWarnings(); $size = filesize( $this->params['src'] ); AtEase::restoreWarnings(); return $size; } protected function getSourceSha1Base36() { AtEase::suppressWarnings(); $hash = sha1_file( $this->params['src'] ); AtEase::restoreWarnings(); if ( $hash !== false ) { $hash = \Wikimedia\base_convert( $hash, 16, 36, 31 ); } return $hash; } public function storagePathsChanged() { return [ $this->params['dst'] ]; } } /** @deprecated class alias since 1.43 */ class_alias( StoreFileOp::class, 'StoreFileOp' );
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