From f578b396830d2c50e910298f4be790e7dc89ce44 Mon Sep 17 00:00:00 2001
From: tabcat <tabcat00@proton.me>
Date: Sun, 8 Jan 2023 14:45:27 -0600
Subject: [PATCH] refactor: replace err-code with CodeError

---
 package.json                |  2 +-
 src/aes/cipher-mode.ts      |  4 ++--
 src/keys/ecdh-browser.ts    | 12 ++++++------
 src/keys/ecdh.ts            |  4 ++--
 src/keys/ed25519-class.ts   |  6 +++---
 src/keys/index.ts           |  8 ++++----
 src/keys/key-stretcher.ts   |  6 +++---
 src/keys/rsa-browser.ts     |  4 ++--
 src/keys/rsa-class.ts       |  6 +++---
 src/keys/rsa-utils.ts       |  6 +++---
 src/keys/rsa.ts             |  4 ++--
 src/keys/secp256k1-class.ts |  4 ++--
 src/keys/secp256k1.ts       | 12 ++++++------
 src/pbkdf2.ts               |  4 ++--
 src/random-bytes.ts         |  4 ++--
 15 files changed, 43 insertions(+), 43 deletions(-)

diff --git a/package.json b/package.json
index 8c20b430..00b9111c 100644
--- a/package.json
+++ b/package.json
@@ -180,9 +180,9 @@
   },
   "dependencies": {
     "@libp2p/interface-keys": "^1.0.2",
+    "@libp2p/interfaces": "^3.2.0",
     "@noble/ed25519": "^1.6.0",
     "@noble/secp256k1": "^1.5.4",
-    "err-code": "^3.0.1",
     "multiformats": "^11.0.0",
     "node-forge": "^1.1.0",
     "protons-runtime": "^4.0.1",
diff --git a/src/aes/cipher-mode.ts b/src/aes/cipher-mode.ts
index cd7a807e..6fb0840a 100644
--- a/src/aes/cipher-mode.ts
+++ b/src/aes/cipher-mode.ts
@@ -1,4 +1,4 @@
-import errcode from 'err-code'
+import { CodeError } from '@libp2p/interfaces/errors'
 
 const CIPHER_MODES = {
   16: 'aes-128-ctr',
@@ -11,5 +11,5 @@ export function cipherMode (key: Uint8Array) {
   }
 
   const modes = Object.entries(CIPHER_MODES).map(([k, v]) => `${k} (${v})`).join(' / ')
-  throw errcode(new Error(`Invalid key length ${key.length} bytes. Must be ${modes}`), 'ERR_INVALID_KEY_LENGTH')
+  throw new CodeError(`Invalid key length ${key.length} bytes. Must be ${modes}`, 'ERR_INVALID_KEY_LENGTH')
 }
diff --git a/src/keys/ecdh-browser.ts b/src/keys/ecdh-browser.ts
index e5fad8af..bb0f5367 100644
--- a/src/keys/ecdh-browser.ts
+++ b/src/keys/ecdh-browser.ts
@@ -1,4 +1,4 @@
-import errcode from 'err-code'
+import { CodeError } from '@libp2p/interfaces/errors'
 import webcrypto from '../webcrypto.js'
 import { base64urlToBuffer } from '../util.js'
 import { toString as uint8ArrayToString } from 'uint8arrays/to-string'
@@ -17,7 +17,7 @@ const names = curveTypes.join(' / ')
 
 export async function generateEphmeralKeyPair (curve: string) {
   if (curve !== 'P-256' && curve !== 'P-384' && curve !== 'P-521') {
-    throw errcode(new Error(`Unknown curve: ${curve}. Must be ${names}`), 'ERR_INVALID_CURVE')
+    throw new CodeError(`Unknown curve: ${curve}. Must be ${names}`, 'ERR_INVALID_CURVE')
   }
 
   const pair = await webcrypto.get().subtle.generateKey(
@@ -94,11 +94,11 @@ const curveLengths = {
 // go-ipfs uses)
 function marshalPublicKey (jwk: JsonWebKey) {
   if (jwk.crv == null || jwk.x == null || jwk.y == null) {
-    throw errcode(new Error('JWK was missing components'), 'ERR_INVALID_PARAMETERS')
+    throw new CodeError('JWK was missing components', 'ERR_INVALID_PARAMETERS')
   }
 
   if (jwk.crv !== 'P-256' && jwk.crv !== 'P-384' && jwk.crv !== 'P-521') {
-    throw errcode(new Error(`Unknown curve: ${jwk.crv}. Must be ${names}`), 'ERR_INVALID_CURVE')
+    throw new CodeError(`Unknown curve: ${jwk.crv}. Must be ${names}`, 'ERR_INVALID_CURVE')
   }
 
   const byteLen = curveLengths[jwk.crv]
@@ -113,13 +113,13 @@ function marshalPublicKey (jwk: JsonWebKey) {
 // Unmarshal converts a point, serialized by Marshal, into an jwk encoded key
 function unmarshalPublicKey (curve: string, key: Uint8Array) {
   if (curve !== 'P-256' && curve !== 'P-384' && curve !== 'P-521') {
-    throw errcode(new Error(`Unknown curve: ${curve}. Must be ${names}`), 'ERR_INVALID_CURVE')
+    throw new CodeError(`Unknown curve: ${curve}. Must be ${names}`, 'ERR_INVALID_CURVE')
   }
 
   const byteLen = curveLengths[curve]
 
   if (!uint8ArrayEquals(key.subarray(0, 1), Uint8Array.from([4]))) {
-    throw errcode(new Error('Cannot unmarshal public key - invalid key format'), 'ERR_INVALID_KEY_FORMAT')
+    throw new CodeError('Cannot unmarshal public key - invalid key format', 'ERR_INVALID_KEY_FORMAT')
   }
 
   return {
diff --git a/src/keys/ecdh.ts b/src/keys/ecdh.ts
index f28b96f4..5e139f4e 100644
--- a/src/keys/ecdh.ts
+++ b/src/keys/ecdh.ts
@@ -1,5 +1,5 @@
 import crypto from 'crypto'
-import errcode from 'err-code'
+import { CodeError } from '@libp2p/interfaces/errors'
 import type { ECDHKey, ECDHKeyPair } from './interface.js'
 
 const curves = {
@@ -13,7 +13,7 @@ const names = curveTypes.join(' / ')
 
 export async function generateEphmeralKeyPair (curve: string): Promise<ECDHKey> { // eslint-disable-line require-await
   if (curve !== 'P-256' && curve !== 'P-384' && curve !== 'P-521') {
-    throw errcode(new Error(`Unknown curve: ${curve}. Must be ${names}`), 'ERR_INVALID_CURVE')
+    throw new CodeError(`Unknown curve: ${curve}. Must be ${names}`, 'ERR_INVALID_CURVE')
   }
 
   const ecdh = crypto.createECDH(curves[curve])
diff --git a/src/keys/ed25519-class.ts b/src/keys/ed25519-class.ts
index db8dddee..469d18b7 100644
--- a/src/keys/ed25519-class.ts
+++ b/src/keys/ed25519-class.ts
@@ -1,4 +1,4 @@
-import errcode from 'err-code'
+import { CodeError } from '@libp2p/interfaces/errors'
 import { equals as uint8ArrayEquals } from 'uint8arrays/equals'
 import { sha256 } from 'multiformats/hashes/sha2'
 import { base58btc } from 'multiformats/bases/base58'
@@ -101,7 +101,7 @@ export class Ed25519PrivateKey {
     if (format === 'libp2p-key') {
       return await exporter(this.bytes, password)
     } else {
-      throw errcode(new Error(`export format '${format}' is not supported`), 'ERR_INVALID_EXPORT_FORMAT')
+      throw new CodeError(`export format '${format}' is not supported`, 'ERR_INVALID_EXPORT_FORMAT')
     }
   }
 }
@@ -139,7 +139,7 @@ export async function generateKeyPairFromSeed (seed: Uint8Array) {
 function ensureKey (key: Uint8Array, length: number) {
   key = Uint8Array.from(key ?? [])
   if (key.length !== length) {
-    throw errcode(new Error(`Key must be a Uint8Array of length ${length}, got ${key.length}`), 'ERR_INVALID_KEY_TYPE')
+    throw new CodeError(`Key must be a Uint8Array of length ${length}, got ${key.length}`, 'ERR_INVALID_KEY_TYPE')
   }
   return key
 }
diff --git a/src/keys/index.ts b/src/keys/index.ts
index 97681b11..85276fb8 100644
--- a/src/keys/index.ts
+++ b/src/keys/index.ts
@@ -3,7 +3,7 @@ import 'node-forge/lib/asn1.js'
 import 'node-forge/lib/pbe.js'
 // @ts-expect-error types are missing
 import forge from 'node-forge/lib/forge.js'
-import errcode from 'err-code'
+import { CodeError } from '@libp2p/interfaces/errors'
 import { fromString as uint8ArrayFromString } from 'uint8arrays/from-string'
 import { keyStretcher } from './key-stretcher.js'
 import generateEphemeralKeyPair from './ephemeral-keys.js'
@@ -27,7 +27,7 @@ export const supportedKeys = {
 
 function unsupportedKey (type: string) {
   const supported = Object.keys(supportedKeys).join(' / ')
-  return errcode(new Error(`invalid or unsupported key type ${type}. Must be ${supported}`), 'ERR_UNSUPPORTED_KEY_TYPE')
+  return new CodeError(`invalid or unsupported key type ${type}. Must be ${supported}`, 'ERR_UNSUPPORTED_KEY_TYPE')
 }
 
 function typeToKey (type: string) {
@@ -49,7 +49,7 @@ export async function generateKeyPair (type: KeyTypes, bits?: number): Promise<P
 // seed is a 32 byte uint8array
 export async function generateKeyPairFromSeed (type: KeyTypes, seed: Uint8Array, bits?: number): Promise<PrivateKey> { // eslint-disable-line require-await
   if (type.toLowerCase() !== 'ed25519') {
-    throw errcode(new Error('Seed key derivation is unimplemented for RSA or secp256k1'), 'ERR_UNSUPPORTED_KEY_DERIVATION_TYPE')
+    throw new CodeError('Seed key derivation is unimplemented for RSA or secp256k1', 'ERR_UNSUPPORTED_KEY_DERIVATION_TYPE')
   }
 
   return await Ed25519.generateKeyPairFromSeed(seed)
@@ -121,7 +121,7 @@ export async function importKey (encryptedKey: string, password: string): Promis
   // Only rsa supports pem right now
   const key = forge.pki.decryptRsaPrivateKey(encryptedKey, password)
   if (key === null) {
-    throw errcode(new Error('Cannot read the key, most likely the password is wrong or not a RSA key'), 'ERR_CANNOT_DECRYPT_PEM')
+    throw new CodeError('Cannot read the key, most likely the password is wrong or not a RSA key', 'ERR_CANNOT_DECRYPT_PEM')
   }
   let der = forge.asn1.toDer(forge.pki.privateKeyToAsn1(key))
   der = uint8ArrayFromString(der.getBytes(), 'ascii')
diff --git a/src/keys/key-stretcher.ts b/src/keys/key-stretcher.ts
index 7dfd98a8..061fd37d 100644
--- a/src/keys/key-stretcher.ts
+++ b/src/keys/key-stretcher.ts
@@ -1,4 +1,4 @@
-import errcode from 'err-code'
+import { CodeError } from '@libp2p/interfaces/errors'
 import { concat as uint8ArrayConcat } from 'uint8arrays/concat'
 import { fromString as uint8ArrayFromString } from 'uint8arrays/from-string'
 import * as hmac from '../hmac/index.js'
@@ -27,11 +27,11 @@ export async function keyStretcher (cipherType: 'AES-128' | 'AES-256' | 'Blowfis
 
   if (cipher == null) {
     const allowed = Object.keys(cipherMap).join(' / ')
-    throw errcode(new Error(`unknown cipher type '${cipherType}'. Must be ${allowed}`), 'ERR_INVALID_CIPHER_TYPE')
+    throw new CodeError(`unknown cipher type '${cipherType}'. Must be ${allowed}`, 'ERR_INVALID_CIPHER_TYPE')
   }
 
   if (hash == null) {
-    throw errcode(new Error('missing hash type'), 'ERR_MISSING_HASH_TYPE')
+    throw new CodeError('missing hash type', 'ERR_MISSING_HASH_TYPE')
   }
 
   const cipherKeySize = cipher.keySize
diff --git a/src/keys/rsa-browser.ts b/src/keys/rsa-browser.ts
index 9943c797..273e46d1 100644
--- a/src/keys/rsa-browser.ts
+++ b/src/keys/rsa-browser.ts
@@ -4,7 +4,7 @@ import { toString as uint8ArrayToString } from 'uint8arrays/to-string'
 import { fromString as uint8ArrayFromString } from 'uint8arrays/from-string'
 import * as utils from './rsa-utils.js'
 import { jwk2pub, jwk2priv } from './jwk2pem.js'
-import errcode from 'err-code'
+import { CodeError } from '@libp2p/interfaces/errors'
 
 export { utils }
 
@@ -102,7 +102,7 @@ export async function hashAndVerify (key: JsonWebKey, sig: Uint8Array, msg: Uint
 
 async function exportKey (pair: CryptoKeyPair) {
   if (pair.privateKey == null || pair.publicKey == null) {
-    throw errcode(new Error('Private and public key are required'), 'ERR_INVALID_PARAMETERS')
+    throw new CodeError('Private and public key are required', 'ERR_INVALID_PARAMETERS')
   }
 
   return await Promise.all([
diff --git a/src/keys/rsa-class.ts b/src/keys/rsa-class.ts
index 055015b0..a69019cb 100644
--- a/src/keys/rsa-class.ts
+++ b/src/keys/rsa-class.ts
@@ -1,6 +1,6 @@
 
 import { sha256 } from 'multiformats/hashes/sha2'
-import errcode from 'err-code'
+import { CodeError } from '@libp2p/interfaces/errors'
 import { equals as uint8ArrayEquals } from 'uint8arrays/equals'
 import { toString as uint8ArrayToString } from 'uint8arrays/to-string'
 import 'node-forge/lib/sha512.js'
@@ -66,7 +66,7 @@ export class RsaPrivateKey {
 
   get public () {
     if (this._publicKey == null) {
-      throw errcode(new Error('public key not provided'), 'ERR_PUBKEY_NOT_PROVIDED')
+      throw new CodeError('public key not provided', 'ERR_PUBKEY_NOT_PROVIDED')
     }
 
     return new RsaPublicKey(this._publicKey)
@@ -128,7 +128,7 @@ export class RsaPrivateKey {
     } else if (format === 'libp2p-key') {
       return await exporter(this.bytes, password)
     } else {
-      throw errcode(new Error(`export format '${format}' is not supported`), 'ERR_INVALID_EXPORT_FORMAT')
+      throw new CodeError(`export format '${format}' is not supported`, 'ERR_INVALID_EXPORT_FORMAT')
     }
   }
 }
diff --git a/src/keys/rsa-utils.ts b/src/keys/rsa-utils.ts
index af99c27e..a6bc9bf3 100644
--- a/src/keys/rsa-utils.ts
+++ b/src/keys/rsa-utils.ts
@@ -5,7 +5,7 @@ import forge from 'node-forge/lib/forge.js'
 import { bigIntegerToUintBase64url, base64urlToBigInteger } from './../util.js'
 import { fromString as uint8ArrayFromString } from 'uint8arrays/from-string'
 import { toString as uint8ArrayToString } from 'uint8arrays/to-string'
-import errcode from 'err-code'
+import { CodeError } from '@libp2p/interfaces/errors'
 
 // Convert a PKCS#1 in ASN1 DER format to a JWK key
 export function pkcs1ToJwk (bytes: Uint8Array): JsonWebKey {
@@ -30,7 +30,7 @@ export function pkcs1ToJwk (bytes: Uint8Array): JsonWebKey {
 // Convert a JWK key into PKCS#1 in ASN1 DER format
 export function jwkToPkcs1 (jwk: JsonWebKey) {
   if (jwk.n == null || jwk.e == null || jwk.d == null || jwk.p == null || jwk.q == null || jwk.dp == null || jwk.dq == null || jwk.qi == null) {
-    throw errcode(new Error('JWK was missing components'), 'ERR_INVALID_PARAMETERS')
+    throw new CodeError('JWK was missing components', 'ERR_INVALID_PARAMETERS')
   }
 
   const asn1 = forge.pki.privateKeyToAsn1({
@@ -62,7 +62,7 @@ export function pkixToJwk (bytes: Uint8Array): JsonWebKey {
 // Convert a JWK key to PKCIX in ASN1 DER format
 export function jwkToPkix (jwk: JsonWebKey) {
   if (jwk.n == null || jwk.e == null) {
-    throw errcode(new Error('JWK was missing components'), 'ERR_INVALID_PARAMETERS')
+    throw new CodeError('JWK was missing components', 'ERR_INVALID_PARAMETERS')
   }
 
   const asn1 = forge.pki.publicKeyToAsn1({
diff --git a/src/keys/rsa.ts b/src/keys/rsa.ts
index 6836c5b1..d47b4c30 100644
--- a/src/keys/rsa.ts
+++ b/src/keys/rsa.ts
@@ -1,6 +1,6 @@
 import crypto from 'crypto'
 import { promisify } from 'util'
-import errcode from 'err-code'
+import { CodeError } from '@libp2p/interfaces/errors'
 import randomBytes from '../random-bytes.js'
 import * as utils from './rsa-utils.js'
 import type { JWKKeyPair } from './interface.js'
@@ -28,7 +28,7 @@ export async function generateKey (bits: number): Promise<JWKKeyPair> { // eslin
 // Takes a jwk key
 export async function unmarshalPrivateKey (key: JsonWebKey): Promise<JWKKeyPair> { // eslint-disable-line require-await
   if (key == null) {
-    throw errcode(new Error('Missing key parameter'), 'ERR_MISSING_KEY')
+    throw new CodeError('Missing key parameter', 'ERR_MISSING_KEY')
   }
   return {
     privateKey: key,
diff --git a/src/keys/secp256k1-class.ts b/src/keys/secp256k1-class.ts
index 2dd3c7a5..4e38f23a 100644
--- a/src/keys/secp256k1-class.ts
+++ b/src/keys/secp256k1-class.ts
@@ -1,5 +1,5 @@
 import { sha256 } from 'multiformats/hashes/sha2'
-import errcode from 'err-code'
+import { CodeError } from '@libp2p/interfaces/errors'
 import { equals as uint8ArrayEquals } from 'uint8arrays/equals'
 import { toString as uint8ArrayToString } from 'uint8arrays/to-string'
 import * as crypto from './secp256k1.js'
@@ -99,7 +99,7 @@ export class Secp256k1PrivateKey {
     if (format === 'libp2p-key') {
       return await exporter(this.bytes, password)
     } else {
-      throw errcode(new Error(`export format '${format}' is not supported`), 'ERR_INVALID_EXPORT_FORMAT')
+      throw new CodeError(`export format '${format}' is not supported`, 'ERR_INVALID_EXPORT_FORMAT')
     }
   }
 }
diff --git a/src/keys/secp256k1.ts b/src/keys/secp256k1.ts
index 2e2e2274..23bc1ab4 100644
--- a/src/keys/secp256k1.ts
+++ b/src/keys/secp256k1.ts
@@ -1,4 +1,4 @@
-import errcode from 'err-code'
+import { CodeError } from '@libp2p/interfaces/errors'
 import * as secp from '@noble/secp256k1'
 import { sha256 } from 'multiformats/hashes/sha2'
 
@@ -18,7 +18,7 @@ export async function hashAndSign (key: Uint8Array, msg: Uint8Array) {
   try {
     return await secp.sign(digest, key)
   } catch (err) {
-    throw errcode(err, 'ERR_INVALID_INPUT')
+    throw new CodeError(String(err), 'ERR_INVALID_INPUT')
   }
 }
 
@@ -30,7 +30,7 @@ export async function hashAndVerify (key: Uint8Array, sig: Uint8Array, msg: Uint
     const { digest } = await sha256.digest(msg)
     return secp.verify(sig, digest, key)
   } catch (err) {
-    throw errcode(err, 'ERR_INVALID_INPUT')
+    throw new CodeError(String(err), 'ERR_INVALID_INPUT')
   }
 }
 
@@ -48,7 +48,7 @@ export function validatePrivateKey (key: Uint8Array) {
   try {
     secp.getPublicKey(key, true)
   } catch (err) {
-    throw errcode(err, 'ERR_INVALID_PRIVATE_KEY')
+    throw new CodeError(String(err), 'ERR_INVALID_PRIVATE_KEY')
   }
 }
 
@@ -56,7 +56,7 @@ export function validatePublicKey (key: Uint8Array) {
   try {
     secp.Point.fromHex(key)
   } catch (err) {
-    throw errcode(err, 'ERR_INVALID_PUBLIC_KEY')
+    throw new CodeError(String(err), 'ERR_INVALID_PUBLIC_KEY')
   }
 }
 
@@ -64,6 +64,6 @@ export function computePublicKey (privateKey: Uint8Array) {
   try {
     return secp.getPublicKey(privateKey, true)
   } catch (err) {
-    throw errcode(err, 'ERR_INVALID_PRIVATE_KEY')
+    throw new CodeError(String(err), 'ERR_INVALID_PRIVATE_KEY')
   }
 }
diff --git a/src/pbkdf2.ts b/src/pbkdf2.ts
index 199cfc58..d5f62db6 100644
--- a/src/pbkdf2.ts
+++ b/src/pbkdf2.ts
@@ -2,7 +2,7 @@
 import forgePbkdf2 from 'node-forge/lib/pbkdf2.js'
 // @ts-expect-error types are missing
 import forgeUtil from 'node-forge/lib/util.js'
-import errcode from 'err-code'
+import { CodeError } from '@libp2p/interfaces/errors'
 
 /**
  * Maps an IPFS hash name to its node-forge equivalent.
@@ -23,7 +23,7 @@ const hashName = {
 export default function pbkdf2 (password: string, salt: string, iterations: number, keySize: number, hash: string): string {
   if (hash !== 'sha1' && hash !== 'sha2-256' && hash !== 'sha2-512') {
     const types = Object.keys(hashName).join(' / ')
-    throw errcode(new Error(`Hash '${hash}' is unknown or not supported. Must be ${types}`), 'ERR_UNSUPPORTED_HASH_TYPE')
+    throw new CodeError(`Hash '${hash}' is unknown or not supported. Must be ${types}`, 'ERR_UNSUPPORTED_HASH_TYPE')
   }
 
   const hasher = hashName[hash]
diff --git a/src/random-bytes.ts b/src/random-bytes.ts
index afb8e6a0..83363bcc 100644
--- a/src/random-bytes.ts
+++ b/src/random-bytes.ts
@@ -1,9 +1,9 @@
 import { utils } from '@noble/secp256k1'
-import errcode from 'err-code'
+import { CodeError } from '@libp2p/interfaces/errors'
 
 export default function randomBytes (length: number): Uint8Array {
   if (isNaN(length) || length <= 0) {
-    throw errcode(new Error('random bytes length must be a Number bigger than 0'), 'ERR_INVALID_LENGTH')
+    throw new CodeError('random bytes length must be a Number bigger than 0', 'ERR_INVALID_LENGTH')
   }
   return utils.randomBytes(length)
 }