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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
*/
/**
* 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( 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() {
Wikimedia\suppressWarnings();
$hash = sha1_file( $this->params['src'] );
Wikimedia\restoreWarnings();
if ( $hash !== false ) {
$hash = Wikimedia\base_convert( $hash, 16, 36, 31 );
}
return $hash;
}
public function storagePathsChanged() {
return [ $this->params['dst'] ];
}
}
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