[PM-7646][PM-5506] Rust IPC changes: Episode 2 (#11122)

* Revert "[PM-7646][PM-5506] Revert IPC changes (#10946)"

This reverts commit ed4d481e4d.

* Ensure tmp dir gets created on MacOS

* Remove client reconnections

* Improve client error handling and process exiting

apps/desktop/src/entry.ts

@@ -1,31 +1,33 @@
-import { NativeMessagingProxy } from "./proxy/native-messaging-proxy";
+import { spawn } from "child_process";
+import * as path from "path";
 
-// We need to import the other dependencies using `require` since `import` will
-// generate `Error: Cannot find module 'electron'`. The cause of this error is
-// due to native messaging setting the ELECTRON_RUN_AS_NODE env flag on windows
-// which removes the electron module. This flag is needed for stdin/out to work
-// properly on Windows.
+import { app } from "electron";
 
 if (
+  process.platform === "darwin" &&
   process.argv.some((arg) => arg.indexOf("chrome-extension://") !== -1 || arg.indexOf("{") !== -1)
 ) {
-  if (process.platform === "darwin") {
-    // eslint-disable-next-line
-    const app = require("electron").app;
+  // If we're on MacOS, we need to support DuckDuckGo's IPC communication,
+  // which for the moment is launching the Bitwarden process.
+  // Ideally the browser would instead startup the desktop_proxy process
+  // when available, but for now we'll just launch it here.
 
-    app.on("ready", () => {
-      app.dock.hide();
-    });
-  }
-
-  process.stdout.on("error", (e) => {
-    if (e.code === "EPIPE") {
-      process.exit(0);
-    }
+  app.on("ready", () => {
+    app.dock.hide();
   });
 
-  const proxy = new NativeMessagingProxy();
-  proxy.run();
+  const proc = spawn(path.join(process.execPath, "..", "desktop_proxy"), process.argv.slice(1), {
+    cwd: process.cwd(),
+    stdio: "inherit",
+    shell: false,
+  });
+
+  proc.on("exit", () => {
+    process.exit(0);
+  });
+  proc.on("error", () => {
+    process.exit(1);
+  });
 } else {
   // eslint-disable-next-line
   const Main = require("./main").Main;