File Type is a library that uses file signatures and file extensions to determine the type of file.
Signature, extension and media type data are provided by:
If you need a format that is not supported, please provide your submission to the PRONOM database and include the reference id when opening a feature request for this project.
Detect the 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.media_types(), Vec::<String>::new());
assert_eq!(file_type.extensions(), vec!["class"]);Detect the file type from a file:
use file_type::FileType;
use std::path::Path;
#[tokio::main]
async fn main() {
let file_path = Path::new("image.png");
let file_type = FileType::try_from_file(file_path).await.expect("file type not found");
assert_eq!(file_type.id(), "fmt/11");
assert_eq!(file_type.name(), "Portable Network Graphics");
assert_eq!(file_type.extensions(), vec!["png"]);
assert_eq!(file_type.media_types(), vec!["image/png"]);
}Detect the file type from a file synchronously:
use file_type::FileType;
use std::path::Path;
let file_path = Path::new("image.png");
let file_type = FileType::try_from_file_sync(file_path).expect("file type not found");
assert_eq!(file_type.id(), "fmt/11");
assert_eq!(file_type.name(), "Portable Network Graphics");
assert_eq!(file_type.extensions(), vec!["png"]);
assert_eq!(file_type.media_types(), vec!["image/png"]);These crates use #![forbid(unsafe_code)] to ensure everything is implemented in 100% safe Rust.
Licensed under either of
- Apache License, Version 2.0, (LICENSE-APACHE or https://www.apache.org/licenses/LICENSE-2.0)
- MIT license (LICENSE-MIT or https://opensource.org/licenses/MIT)
AND
The PRONOM definitions are provided by The National Archives (UK) under the Open Government Licence.
Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.
