;'use strict';var MimeMapper={_typeToExtensionMap:{'image/jpeg':'jpg','image/png':'png','image/gif':'gif','image/bmp':'bmp','audio/mpeg':'mp3','audio/mp4':'m4a','audio/ogg':'ogg','audio/webm':'webm','audio/3gpp':'3gp','audio/amr':'amr','video/mp4':'mp4','video/mpeg':'mpg','video/ogg':'ogg','video/webm':'webm','video/3gpp':'3gp','video/3gpp2':'3g2','application/pdf':'pdf','application/vcard':'vcf','text/vcard':'vcf','text/x-vcard':'vcf'},_extensionToTypeMap:{'jpg':'image/jpeg','jpeg':'image/jpeg','jpe':'image/jpeg','png':'image/png','gif':'image/gif','bmp':'image/bmp','mp3':'audio/mpeg','m4a':'audio/mp4','m4b':'audio/mp4','m4p':'audio/mp4','m4r':'audio/mp4','aac':'audio/aac','opus':'audio/ogg','amr':'audio/amr','mp4':'video/mp4','mpeg':'video/mpeg','mpg':'video/mpeg','ogv':'video/ogg','ogx':'video/ogg','webm':'video/webm','3gp':'video/3gpp','3g2':'video/3gpp2','ogg':'video/ogg','pdf':'application/pdf','vcf':'text/vcard'},_parseExtension:function(filename){var array=filename.split('.');return array.length>1?array.pop():'';},isSupportedType:function(mimetype){return(mimetype in this._typeToExtensionMap);},isSupportedExtension:function(extension){return(extension in this._extensionToTypeMap);},isFilenameMatchesType:function(filename,mimetype){var extension=this._parseExtension(filename);var guessedType=this.guessTypeFromExtension(extension);return(guessedType==mimetype);},guessExtensionFromType:function(mimetype){return this._typeToExtensionMap[mimetype];},guessTypeFromExtension:function(extension){return this._extensionToTypeMap[extension];},guessTypeFromFileProperties:function(filename,mimetype){var extension=this._parseExtension(filename);var type=this.isSupportedType(mimetype)?mimetype:this.guessTypeFromExtension(extension);return type||'';},ensureFilenameMatchesType:function(filename,mimetype){if(!this.isFilenameMatchesType(filename,mimetype)){var guessedExt=this.guessExtensionFromType(mimetype);if(guessedExt){filename+='.'+guessedExt;}}
return filename;}};