fix(kibisis): remove web crypto api dependency when generating uuid (#…

…134)

* fix(kibisis): remove web crypto api dependency when generating uuid

* chore: squash

* chore: squash

* chore: squash

* chore: squash

src/clients/kibisis/client.ts

@@ -35,6 +35,7 @@ import type {
   SignTxnsResult
 } from './types'
 import { DecodedSignedTransaction, DecodedTransaction } from '../../types'
+import { generateUuid } from './utils'
 
 class KibisisClient extends BaseClient {
   genesisHash: string
@@ -153,7 +154,7 @@ class KibisisClient extends BaseClient {
   }: SendRequestWithTimeoutOptions<Params>): Promise<Result | undefined> {
     return new Promise<Result | undefined>((resolve, reject) => {
       const channel = new BroadcastChannel(ARC_0027_CHANNEL_NAME)
-      const requestId = crypto.randomUUID()
+      const requestId = generateUuid()
       // eslint-disable-next-line prefer-const
       let timer: number
 

src/clients/kibisis/utils.test.ts

@@ -0,0 +1,35 @@
+import { generateUuid } from './utils'
+import { randomUUID, getRandomValues } from 'crypto'
+
+describe(`${__dirname}/utils`, () => {
+  const validUuidRegex =
+    /^[0-9a-f]{8}-[0-9a-f]{4}-[1-5][0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$/i
+
+  describe('generateUuid()', () => {
+    it('should generate a valid uuid using the web crypto api', () => {
+      const result = generateUuid()
+
+      expect(validUuidRegex.test(result)).toBe(true)
+    })
+
+    it('should generate a valid uuid without the web crypto api', () => {
+      Object.defineProperty(global, 'crypto', {
+        configurable: true,
+        value: {
+          getRandomValues
+        }
+      })
+
+      const result = generateUuid()
+
+      expect(validUuidRegex.test(result)).toBe(true)
+
+      Object.defineProperty(global, 'crypto', {
+        value: {
+          getRandomValues,
+          randomUUID
+        }
+      })
+    })
+  })
+})

src/clients/kibisis/utils.ts

@@ -0,0 +1,22 @@
+/**
+ * Generates a UUID version 4 string. This function attempts to use the `crypto.randomUUID()` function from the Web
+ * Crypto API if it is available, otherwise it uses a polyfill method.
+ *
+ * NOTE: `crypto.randomUUID()` is not available in non-secure contexts; only localhost and HTTPS.
+ * @returns {string} a valid UUID version 4 string.
+ * @see {@link https://stackoverflow.com/a/2117523}
+ */
+export function generateUuid(): string {
+  if (global.crypto.randomUUID) {
+    return global.crypto.randomUUID()
+  }
+
+  return '10000000-1000-4000-8000-100000000000'.replace(/[018]/g, (value) => {
+    const valueAsNumber: number = parseInt(value)
+
+    return (
+      valueAsNumber ^
+      (global.crypto.getRandomValues(new Uint8Array(1))[0] & (15 >> (valueAsNumber / 4)))
+    ).toString(16)
+  })
+}