feat(ios): hashcash in swift (#8602)

packages/frontend/apps/ios/src/app.tsx

@@ -4,7 +4,11 @@ import { Telemetry } from '@affine/core/components/telemetry';
 import { configureMobileModules } from '@affine/core/mobile/modules';
 import { router } from '@affine/core/mobile/router';
 import { configureCommonModules } from '@affine/core/modules';
-import { AuthService, WebSocketAuthProvider } from '@affine/core/modules/cloud';
+import {
+  AuthService,
+  ValidatorProvider,
+  WebSocketAuthProvider,
+} from '@affine/core/modules/cloud';
 import { I18nProvider } from '@affine/core/modules/i18n';
 import { configureLocalStorageStateStorageImpls } from '@affine/core/modules/storage';
 import { PopupWindowProvider } from '@affine/core/modules/url';
@@ -28,6 +32,7 @@ import { RouterProvider } from 'react-router-dom';
 
 import { configureFetchProvider } from './fetch';
 import { Cookie } from './plugins/cookie';
+import { Hashcash } from './plugins/hashcash';
 
 const future = {
   v7_startTransition: true,
@@ -66,6 +71,12 @@ framework.impl(WebSocketAuthProvider, {
     };
   },
 });
+framework.impl(ValidatorProvider, {
+  async validate(_challenge, resource) {
+    const res = await Hashcash.hash({ challenge: resource });
+    return res.value;
+  },
+});
 const frameworkProvider = framework.provider();
 
 // setup application lifecycle events, and emit application start event

packages/frontend/apps/ios/src/plugins/hashcash/definitions.ts

@@ -0,0 +1,6 @@
+export interface HashcashPlugin {
+  hash(options: {
+    challenge: string;
+    bits?: number;
+  }): Promise<{ value: string }>;
+}

packages/frontend/apps/ios/src/plugins/hashcash/index.ts

@@ -0,0 +1,8 @@
+import { registerPlugin } from '@capacitor/core';
+
+import type { HashcashPlugin } from './definitions';
+
+const Hashcash = registerPlugin<HashcashPlugin>('Hashcash');
+
+export * from './definitions';
+export { Hashcash };