widget static resources are now built locally

templates/widget/js/prove.ts

@@ -0,0 +1,55 @@
+/*
+ * mCaptcha is a PoW based DoS protection software.
+ * This is the frontend web component of the mCaptcha system
+ * Copyright © 2021 Aravinth Manivnanan <realaravinth@batsense.net>.
+ *
+ * Use of this source code is governed by Apache 2.0 or MIT license.
+ * You shoud have received a copy of MIT and Apache 2.0 along with
+ * this program. If not, see <https://spdx.org/licenses/MIT.html> for
+ * MIT or <http://www.apache.org/licenses/LICENSE-2.0> for Apache.
+ */
+
+import {gen_pow} from '../../../browser/pkg/index';
+import {PoWConfig} from './fetchPoWConfig';
+import * as CONST from './const';
+
+export type Work = {
+  result: string;
+  nonce: number;
+  string: string;
+  key: string;
+};
+
+type WasmWork = {
+  result: string;
+  nonce: number;
+};
+
+/**
+ * proove work
+ * @param {PoWConfig} config - the proof-of-work configuration using which
+ * work needs to be computed
+ * */
+const prove = async (config: PoWConfig) => {
+  try {
+    const proofString = gen_pow(
+      config.salt,
+      config.string,
+      config.difficulty_factor,
+    );
+    const proof: WasmWork = JSON.parse(proofString);
+
+    const res: Work = {
+      key: CONST.sitekey(),
+      string: config.string,
+      nonce: proof.nonce,
+      result: proof.result,
+    };
+
+    return res;
+  } catch (err) {
+    throw err;
+  }
+};
+
+export default prove;