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<?php
/**
* MimeMagic helper functions for detecting and dealing with MIME types.
*
* 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
*/
use MediaWiki\FileRepo\File\File;
use Wikimedia\FileBackend\FileBackend;
use Wikimedia\FileBackend\FSFile\FSFile;
use Wikimedia\Mime\MimeAnalyzer;
/**
* MimeMagic helper wrapper
*
* @since 1.28
*/
class MWFileProps {
/** @var MimeAnalyzer */
private $magic;
public function __construct( MimeAnalyzer $magic ) {
$this->magic = $magic;
}
/**
* Get an associative array containing information about
* a file with the given storage path.
*
* Resulting array fields include:
* - fileExists
* - size (filesize in bytes)
* - mime (as major/minor)
* - media_type (value to be used with the MEDIATYPE_xxx constants)
* - metadata (handler specific)
* - sha1 (in base 36)
* - width
* - height
* - bits (bitrate)
* - file-mime
* - major_mime
* - minor_mime
*
* @param string $path Filesystem path to a file
* @param string|bool|null $ext The file extension, or true to extract it from the filename.
* Set it to false to ignore the extension. Might be null in case the file is going to be
* stashed.
* @return array
* @since 1.28
*/
public function getPropsFromPath( $path, $ext ) {
$fsFile = new FSFile( $path );
$info = $this->newPlaceholderProps();
$info['fileExists'] = $fsFile->exists();
if ( $info['fileExists'] ) {
$info['size'] = $fsFile->getSize(); // bytes
$info['sha1'] = $fsFile->getSha1Base36();
# MIME type according to file contents
$info['file-mime'] = $this->magic->guessMimeType( $path, false );
# Logical MIME type
$ext = ( $ext === true ) ? FileBackend::extensionFromPath( $path ) : (string)$ext;
# XXX: MimeAnalyzer::improveTypeFromExtension() may return null (T253483).
# Unclear if callers of this method expect that.
$info['mime'] = $this->magic->improveTypeFromExtension( $info['file-mime'], $ext );
[ $info['major_mime'], $info['minor_mime'] ] = File::splitMime( $info['mime'] );
$info['media_type'] = $this->magic->getMediaType( $path, $info['mime'] );
# Height, width and metadata
// @phan-suppress-next-line PhanTypeMismatchArgumentNullable See XXX above
$handler = MediaHandler::getHandler( $info['mime'] );
if ( $handler ) {
$sizeAndMetadata = $handler->getSizeAndMetadataWithFallback( $fsFile, $path );
if ( $sizeAndMetadata ) {
$info = $sizeAndMetadata + $info;
}
}
}
return $info;
}
/**
* Empty place holder props for non-existing files
*
* Resulting array fields include:
* - fileExists
* - size (filesize in bytes)
* - mime (as major/minor)
* - media_type (value to be used with the MEDIATYPE_xxx constants)
* - metadata (handler specific)
* - sha1 (in base 36)
* - width
* - height
* - bits (bitrate)
* - file-mime
* - major_mime
* - minor_mime
*
* @return array
* @since 1.28
*/
public function newPlaceholderProps() {
return FSFile::placeholderProps() + [
'metadata' => [],
'width' => 0,
'height' => 0,
'bits' => 0,
'media_type' => MEDIATYPE_UNKNOWN
];
}
}