chore(server): use native file-type implementation (#6686)

packages/backend/native/Cargo.toml

@@ -8,6 +8,7 @@ crate-type = ["cdylib"]
 
 [dependencies]
 chrono = "0.4"
+file-format = { version = "0.24", features = ["reader"] }
 napi = { version = "2", default-features = false, features = [
   "napi5",
   "async",

packages/backend/native/index.d.ts

@@ -1,6 +1,8 @@
 /* auto-generated by NAPI-RS */
 /* eslint-disable */
 
+export function getMime(input: Uint8Array): string
+
 /**
  * Merge updates in form like `Y.applyUpdate(doc, update)` way and return the
  * result binary.

packages/backend/native/index.js

@@ -3,9 +3,9 @@ import { createRequire } from 'node:module';
 const require = createRequire(import.meta.url);
 
 /** @type {import('.')} */
-const binding = require('./storage.node');
+const binding = require('./server-native.node');
 
-export const Storage = binding.Storage;
 export const mergeUpdatesInApplyWay = binding.mergeUpdatesInApplyWay;
 export const verifyChallengeResponse = binding.verifyChallengeResponse;
 export const mintChallengeResponse = binding.mintChallengeResponse;
+export const getMime = binding.getMime;

packages/backend/native/src/file_type.rs

@@ -0,0 +1,8 @@
+use napi_derive::napi;
+
+#[napi]
+pub fn get_mime(input: &[u8]) -> String {
+  file_format::FileFormat::from_bytes(input)
+    .media_type()
+    .to_string()
+}

packages/backend/native/src/lib.rs

@@ -1,5 +1,6 @@
 #![deny(clippy::all)]
 
+pub mod file_type;
 pub mod hashcash;
 
 use std::fmt::{Debug, Display};