fix: inaccessible under scuttling mode (#308)

src/setup/launch.ts

@@ -9,7 +9,7 @@ import { launchPuppeteer } from "./puppeteer";
 import { isNewerVersion } from "./utils/isNewerVersion";
 import downloader from "./utils/metaMaskDownloader";
 import { getTemporaryUserDataDir } from "./utils/getTemporaryUserDataDir";
-import { addKeyToMetaMaskManifest } from "./utils/addKeyToMetaMaskManifest";
+import { patchMetaMask } from "./utils/patch";
 
 /**
  * Launch Puppeteer chromium instance with MetaMask plugin installed
@@ -64,7 +64,7 @@ export async function launch(
     metamaskPath = options.metaMaskPath;
   }
 
-  addKeyToMetaMaskManifest(metamaskPath, options.key);
+  patchMetaMask(metamaskPath, { key: options.key });
   const userDataDir = getTemporaryUserDataDir();
   if (options.userDataDir)
     copyUserDataFiles(path.resolve(options.userDataDir), userDataDir);

src/setup/utils/patch/disableScuttleGlobalThis.ts

@@ -0,0 +1,13 @@
+import path from "path";
+import { readFileSync, writeFileSync } from "fs";
+
+export const disableScuttleGlobalThis = (metaMaskPath: string): void => {
+  const runtimeLavaMoatPath = path.resolve(metaMaskPath, "runtime-lavamoat.js");
+
+  const file = readFileSync(runtimeLavaMoatPath, "utf8");
+  const patchedFile = file.replace(
+    `"scuttleGlobalThis":true`,
+    `"scuttleGlobalThis":false`
+  );
+  writeFileSync(runtimeLavaMoatPath, patchedFile);
+};

src/setup/utils/patch/index.ts

@@ -0,0 +1,14 @@
+import { addKeyToMetaMaskManifest } from "./addKeyToMetaMaskManifest";
+import { disableScuttleGlobalThis } from "./disableScuttleGlobalThis";
+
+interface PatchOptions {
+  key: string;
+}
+
+export const patchMetaMask = (
+  metamaskPath: string,
+  options: PatchOptions
+): void => {
+  addKeyToMetaMaskManifest(metamaskPath, options.key);
+  disableScuttleGlobalThis(metamaskPath);
+};