nextcloud/lib/search/provider/file.php

<?php

class OC_Search_Provider_File extends OC_Search_Provider{
	function search($query){
		$files=OC_FileCache::search($query,true);
		$results=array();
		foreach($files as $fileData){
			$file=$fileData['path'];
			$mime=$fileData['mimetype'];
			if($mime=='httpd/unix-directory'){
				$results[]=new OC_Search_Result(basename($file),'',OC_Helper::linkTo( 'files', 'index.php' ).'?dir='.$file,'Files');
			}else{
				$mimeBase=$fileData['mimepart'];
				switch($mimeBase){
					case 'audio':
						break;
					case 'text':
						$results[]=new OC_Search_Result(basename($file),'',OC_Helper::linkTo( 'files', 'download.php' ).'?file='.$file,'Text');
						break;
					case 'image':
						$results[]=new OC_Search_Result(basename($file),'',OC_Helper::linkTo( 'files', 'download.php' ).'?file='.$file,'Images');
						break;
					default:
						if($mime=='application/xml'){
							$results[]=new OC_Search_Result(basename($file),'',OC_Helper::linkTo( 'files', 'download.php' ).'?file='.$file,'Text');
						}else{
							$results[]=new OC_Search_Result(basename($file),'',OC_Helper::linkTo( 'files', 'download.php' ).'?file='.$file,'Files');
						}
				}
			}
		}
		return $results;
	}
}