[wasm/qtfm] feat: add qtfm wasm glue

This commit is contained in:
鲁树人 2024-09-20 21:14:24 +01:00
parent 9ea6a73ca4
commit cf320a5669
3 changed files with 49 additions and 3 deletions

View File

@ -45,7 +45,12 @@ impl ArgsQingTingFM {
};
let device_key = self.make_device_key()?;
let iv = make_decipher_iv(file_name)?;
let iv = make_decipher_iv(&file_name)?;
if cli.verbose {
eprintln!(" file_name: {}", file_name);
eprintln!("device_key: {}", hex::encode(&device_key));
eprintln!(" file_iv: {}", hex::encode(&iv));
}
let decipher = Decipher::new(&device_key, &iv);

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@ -0,0 +1,40 @@
use std::convert::TryInto;
use umc_qtfm::{nonce, secret, Decipher};
use wasm_bindgen::prelude::wasm_bindgen;
use wasm_bindgen::JsError;
/// QingTingFM QTA file decipher.
#[wasm_bindgen(js_name=QingTingFM)]
pub struct JsQingTingFM(Decipher);
#[wasm_bindgen(js_class = QingTingFM)]
impl JsQingTingFM {
#[wasm_bindgen(js_name=getDeviceKey)]
pub fn get_device_key(
product: &str,
device: &str,
manufacturer: &str,
brand: &str,
board: &str,
model: &str,
) -> Vec<u8> {
secret::make_device_secret(product, device, manufacturer, brand, board, model).to_vec()
}
#[wasm_bindgen(js_name=getFileIV)]
pub fn get_file_iv(file_name: &str) -> Result<Vec<u8>, JsError> {
let iv = nonce::make_decipher_iv(file_name)?;
Ok(iv.to_vec())
}
#[wasm_bindgen(constructor)]
pub fn new(device_key: &[u8], file_iv: &[u8]) -> Result<JsQingTingFM, JsError> {
let decipher = Decipher::new(device_key.try_into()?, file_iv.try_into()?);
Ok(JsQingTingFM(decipher))
}
/// Decrypt encrypted buffer part.
pub fn decrypt(&self, buffer: &mut [u8], offset: usize) {
self.0.decrypt(buffer, offset)
}
}

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@ -1,11 +1,12 @@
import umWasm from '../pkg/um_wasm_bg.wasm';
import { __wbg_init, initSync } from '../pkg/um_wasm.js';
import { __wbg_init, initPanicHook, initSync } from '../pkg/um_wasm.js';
export * from '../pkg/um_wasm.js';
function loader() {
if (process.env.UMC_INLINE_BUILD === '1') {
initSync({ module: umWasm() });
initPanicHook();
return Promise.resolve(true);
} else {
const url = new URL('um_wasm_bg.wasm', import.meta.url);
@ -17,7 +18,7 @@ function loader() {
console.log('read wasm failed', err);
})
: undefined;
return __wbg_init({ module_or_path: wasm }).then(() => true);
return __wbg_init({ module_or_path: wasm }).then(() => (initPanicHook(), true));
}
}