upgrade deps + cleanup (#18)

* reorganize package.json

* clean up

Author: jleni

bun.lockb

@@ -3,10 +3,10 @@
   "version": "0.3.0",
   "description": "TS / Node API for apps running on Ledger devices",
   "keywords": [
+    "Zondax",
     "Ledger",
     "Typescript",
-    "Javascript",
-    "Zondax"
+    "Javascript"
   ],
   "homepage": "https://github.com/Zondax/ledger-js",
   "bugs": {
@@ -25,7 +25,6 @@
   ],
   "scripts": {
     "build": "tsc",
-    "copy-files": "copyfiles -u 0 src/**/*.proto dist/",
     "format": "FORCE_COLOR=1 prettier --write . && sort-package-json",
     "format:check": "FORCE_COLOR=1 prettier --check .",
     "lint": "eslint .",
@@ -42,14 +41,14 @@
     "@ledgerhq/hw-transport-mocker": "^6.28.6",
     "@trivago/prettier-plugin-sort-imports": "^4.3.0",
     "@types/jest": "29.5.12",
-    "@types/node": "^18.11.18",
+    "@types/node": "^20.12.11",
     "@typescript-eslint/eslint-plugin": "^7.8.0",
     "@typescript-eslint/parser": "^7.8.0",
     "eslint": "^9.2.0",
     "eslint-config-prettier": "^9.1.0",
     "eslint-config-standard-with-typescript": "^34.0.1",
     "eslint-plugin-import": "^2.29.1",
-    "eslint-plugin-n": "^17.4.0",
+    "eslint-plugin-n": "^17.6.0",
     "eslint-plugin-promise": "^6.1.1",
     "eslint-plugin-tsdoc": "^0.2.17",
     "eslint-plugin-unused-imports": "^3.2.0",

package.json

@@ -16,7 +16,7 @@
 import type Transport from '@ledgerhq/hw-transport'
 
 import { errorCodeToString, processErrorResponse } from './common'
-import { LedgerError } from './consts'
+import { HARDENED, LedgerError, PAYLOAD_TYPE } from './consts'
 import {
   type ConstructorParams,
   type INSGeneric,
@@ -50,7 +50,9 @@ export default class BaseApp {
    * @throws {Error} If the path format is incorrect or invalid.
    */
   serializePath(path: string): Buffer {
-    const HARDENED = 0x80000000
+    if (typeof path !== 'string') {
+      throw new Error("Path should be a string (e.g \"m/44'/461'/5'/0/3\")")
+    }
 
     if (!path.startsWith('m/')) {
       throw new Error('Path should start with "m/" (e.g "m/44\'/5757\'/5\'/0/3")')
@@ -67,15 +69,18 @@ export default class BaseApp {
 
     pathArray.forEach((child, i) => {
       let value = 0
+
       if (child.endsWith("'")) {
         value += HARDENED
         child = child.slice(0, -1)
       }
+
       const numChild = Number(child)
 
       if (Number.isNaN(numChild)) {
         throw new Error(`Invalid path : ${child} is not a number. (e.g "m/44'/461'/5'/0/3")`)
       }
+
       if (numChild >= HARDENED) {
         throw new Error('Incorrect child value (bigger or equal to 0x80000000)')
       }
@@ -110,6 +115,31 @@ export default class BaseApp {
     return chunks
   }
 
+  async signSendChunk(ins: number, chunkIdx: number, chunkNum: number, chunk: Buffer) {
+    let payloadType = PAYLOAD_TYPE.ADD
+
+    if (chunkIdx === 1) {
+      payloadType = PAYLOAD_TYPE.INIT
+    }
+
+    if (chunkIdx === chunkNum) {
+      payloadType = PAYLOAD_TYPE.LAST
+    }
+
+    return this.transport.send(this.CLA, ins, payloadType, 0, chunk, [0x9000, 0x6984, 0x6a80]).then(response => {
+      const errorCodeData = response.subarray(-2)
+      const returnCode = errorCodeData[0] * 256 + errorCodeData[1]
+
+      let errorMessage = errorCodeToString(returnCode)
+
+      if (returnCode === LedgerError.BadKeyHandle || returnCode === LedgerError.DataIsInvalid) {
+        errorMessage = `${errorMessage} : ${response.subarray(0, response.length - 2).toString('ascii')}`
+      }
+
+      return response
+    }, processErrorResponse)
+  }
+
   /**
    * Retrieves the version information from the device.
    * @returns A promise that resolves to the version information.

src/app.ts

@@ -14,6 +14,8 @@
  *  limitations under the License.
  *****************************************************************************/
 
+export const HARDENED = 0x80000000
+
 // Payload types for transactions
 export const PAYLOAD_TYPE: Readonly<Record<string, number>> = {
   INIT: 0x00,