Crate file_type

file_type

Getting Started

A file type. The file type is determined by examining the file or bytes against known file signatures and file extensions.

Signature, extension and media type data are provided by:

• Apache HTTPD
• IANA
• Linguist
• The National Archives PRONOM
• Wikidata

Example

Detect a file type from bytes:

use file_type::FileType;

let file_type = FileType::from_bytes(b"\xCA\xFE\xBA\xBE");
assert_eq!(file_type.name(), "Java class file");
assert_eq!(file_type.extensions(), vec!["class"]);

Retrieve a file type from an extension:

use file_type::FileType;

let file_types = FileType::from_extension("png");
let file_type = file_types.first().expect("file format");
assert_eq!(file_type.media_types(), vec!["image/png"]);

Retrieve a file type from a media type:

use file_type::FileType;

let file_types = FileType::from_media_type("image/png");
let file_type = file_types.first().expect("file format");
assert_eq!(file_type.extensions(), vec!["png"]);

Feature flags

Name	Description	Default?
httpd	Enables Apache HTTPD file types	No
iana	Enables IANA file types	No
linguist	Enables Linguist file types	No
pronom	Enables PRONOM file types	No
std	Enables support for the Rust standard library	Yes
wikidata	Enables Wikidata file types	Yes

Supported File Types

List of supported file types

Safety

This crate uses #![forbid(unsafe_code)] to ensure everything is implemented in 100% safe Rust.

Modules

sources

Structs

Error

Errors that can occur when determining the file type

FileType

A file type. The file type is determined by examining the file or bytes against known file signatures and file extensions.

Type Aliases

Result

File type result type