feat: disable blake2b-wasm when the host is iOS 11

.eslintrc.js

@@ -55,7 +55,8 @@ module.exports = {
     }]
   },
   "globals": {
-    "BigInt": "readonly"
+    "BigInt": "readonly",
+    "globalThis": "readonly",
   },
   "env": {
     "node": true,

packages/ckb-sdk-utils/__tests__/crypto/blake2b.test.js

@@ -1,4 +1,5 @@
 const { blake2b, PERSONAL } = require('../..')
+const { ready } = require('../../lib/crypto/blake2b')
 const fixtures = require('./blake2b.fixtures.json')
 
 describe('blake2b', () => {
@@ -47,3 +48,54 @@ describe('blake2b', () => {
     }
   })
 })
+
+describe('blake2b-wasm-ready', () => {
+  afterEach(() => {
+    delete globalThis.navigator
+  })
+
+  describe("When it's in browser but not iOS 11", () => {
+    beforeEach(() => {
+      Object.defineProperty(globalThis, 'navigator', {
+        value: {
+          userAgent: 'Mozilla/5.0 (iPhone; CPU iPhone OS 12_4_4 like Mac OS X)',
+        },
+      })
+    })
+
+    it('callback should be invoked without error', () => {
+      expect.assertions(1)
+      ready(err => {
+        expect(err).toBeUndefined()
+      })
+    })
+  })
+
+  describe("When it's not in browser and navigator is undefined", () => {
+    beforeEach(() => {
+      delete globalThis.navigator
+    })
+    it('callback should be invoked without error', () => {
+      expect.assertions(1)
+      ready(err => {
+        expect(err).toBeUndefined()
+      })
+    })
+  })
+
+  describe("When it's iOS 11", () => {
+    beforeEach(() => {
+      Object.defineProperty(globalThis, 'navigator', {
+        value: {
+          userAgent: 'Mozilla/5.0 (iPhone; CPU iPhone OS 11_2_1 like Mac OS X)',
+        },
+      })
+    })
+    it('callback should be invoked with error', () => {
+      expect.assertions(1)
+      ready(err => {
+        expect(err).toEqual(new Error('blake2b-wasm is unavailable on iOS 11'))
+      })
+    })
+  })
+})

packages/ckb-sdk-utils/src/crypto/blake2b.ts

@@ -1,5 +1,4 @@
 /* eslint-disable no-param-reassign */
-const b2wasm = require('blake2b-wasm')
 const {
   OutLenTooSmallException,
   OutLenTooLargeException,
@@ -375,8 +374,16 @@ export const blake2b = (
 }
 
 export const ready = (cb: Function) => {
-  b2wasm.ready(() => {
-    cb()
+  const iOSVersion = globalThis?.navigator?.userAgent.match(/cpu iphone os (.*?) like mac os/i)
+  if (iOSVersion?.[1].startsWith('11_')) {
+    cb(new Error(`blake2b-wasm is unavailable on iOS 11`))
+    return
+  }
+
+  /* eslint-disable global-require */
+  const b2wasm = require('blake2b-wasm')
+  b2wasm.ready((...args: unknown[]) => {
+    cb(...args)
   })
 }
 

packages/ckb-sdk-utils/tsconfig.json

@@ -4,9 +4,9 @@
     "moduleResolution": "node",
     "target": "es6",
     "outDir": "lib",
-    "lib": ["es2017"],
+    "lib": ["DOM"],
     "typeRoots": ["types", "node_modules/@types", "node_modules"],
     "types": ["@nervosnetwork/ckb-types", "node"]
   },
-  "include": ["src"],
+  "include": ["src"]
 }