StoreFileOp.php

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<?php
class StoreFileOp extends FileOp {
    protected function allowedParams() {
        return [
            [ 'src', 'dst' ],
            [ 'overwrite', 'overwriteSame', 'headers' ],
            [ 'src', 'dst' ]
        ];
    }
 
    protected function doPrecheck( array &$predicates ) {
        $status = StatusValue::newGood();
        // Check if the source file exists on 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
        } elseif ( filesize( $this->params['src'] ) > $this->backend->maxFileSizeInternal() ) {
            $status->fatal( 'backend-fail-maxsize',
                $this->params['dst'], $this->backend->maxFileSizeInternal() );
            $status->fatal( 'backend-fail-store', $this->params['src'], $this->params['dst'] );
 
            return $status;
            // Check if a file can be placed/changed at the destination
        } elseif ( !$this->backend->isPathUsableInternal( $this->params['dst'] ) ) {
            $status->fatal( 'backend-fail-usable', $this->params['dst'] );
            $status->fatal( 'backend-fail-store', $this->params['src'], $this->params['dst'] );
 
            return $status;
        }
        // Check if destination file exists
        $status->merge( $this->precheckDestExistence( $predicates ) );
        $this->params['dstExists'] = $this->destExists; // see FileBackendStore::setFileCache()
        if ( $status->isOK() ) {
            // Update file existence predicates
            $predicates['exists'][$this->params['dst']] = true;
            $predicates['sha1'][$this->params['dst']] = $this->sourceSha1;
        }
 
        return $status; // safe to call attempt()
    }
 
    protected function doAttempt() {
        if ( !$this->overwriteSameCase ) {
            // Store the file at the destination
            return $this->backend->storeInternal( $this->setFlags( $this->params ) );
        }
 
        return StatusValue::newGood();
    }
 
    protected function getSourceSha1Base36() {
        MediaWiki\suppressWarnings();
        $hash = sha1_file( $this->params['src'] );
        MediaWiki\restoreWarnings();
        if ( $hash !== false ) {
            $hash = Wikimedia\base_convert( $hash, 16, 36, 31 );
        }
 
        return $hash;
    }
 
    public function storagePathsChanged() {
        return [ $this->params['dst'] ];
    }
}