Remove UDS and thus the need for a proxy server

Summary: This change removes the UDS support and thus the need for having a proxy server.

Reviewed By: antonk52

Differential Revision: D48265244

fbshipit-source-id: c76bb4afba63959ddd17901b3887aa278b000beb

desktop/flipper-server-core/src/server/utilities.tsx

@@ -39,63 +39,3 @@ export async function checkPortInUse(port: number): Promise<boolean> {
       .listen(port);
   });
 }
-
-/**
- * Checks if a socket is in used for given path.
- * If the path doesn't exist then is not in use. If it does,
- * create a socket client and attempt to connect to it.
- * If the connection is established, then there's a process
- * already listening. Otherwise, it kind of indicates the
- * contrary.
- * @param path Path used instead of port number.
- * @returns True or false dependning on whether the socket is in
- * use or not.
- */
-export async function checkSocketInUse(path: string): Promise<boolean> {
-  if (!(await fs.pathExists(path))) {
-    return false;
-  }
-  return new Promise((resolve, _reject) => {
-    const client = net
-      .createConnection(path, () => {
-        resolve(true);
-        client.destroy();
-      })
-      .on('error', (e) => {
-        if (e.message.includes('ECONNREFUSED')) {
-          resolve(false);
-        } else {
-          console.warn(
-            `[conn] Socket ${path} is in use, but we don't know why.`,
-            e,
-          );
-          resolve(false);
-        }
-        client.destroy();
-      });
-  });
-}
-
-/**
- * Creates a socket path. Used to open the socket at location.
- * Format: flipper-server-${userInfo}.sock
- * @returns The created socket path.
- */
-export async function makeSocketPath(): Promise<string> {
-  const runtimeDir = xdgBasedir.runtime || '/tmp';
-  await fs.mkdirp(runtimeDir);
-  const filename = `flipper-server-${os.userInfo().uid}.sock`;
-  const path = `${runtimeDir}/${filename}`;
-
-  // Depending on the OS this is between 104 and 108:
-  // https://unix.stackexchange.com/a/367012/10198
-  if (path.length >= 104) {
-    console.warn(
-      'Ignoring XDG_RUNTIME_DIR as it would exceed the total limit for domain socket paths. See man 7 unix.',
-    );
-    // Even with the INT32_MAX userid, we should have plenty of room.
-    return `/tmp/${filename}`;
-  }
-
-  return path;
-}