lambda-edge-functions.txt

Node.JS

index.js


"use strict";

const config = require("./config.js");

exports.handler = (event, context, callback) => {
  const cfRequest = event.Records[0].cf.request;

  // Construct the auth string
  const authString =
    `Basic ${new Buffer(`${config.authUser}:${config.authPass}`).toString("base64")}`;

  // Add auth header
  if (
    typeof cfRequest.headers.authorization === "undefined" ||
    cfRequest.headers.authorization[0].value !== authString
  ) {
    const response = {
      status: "401",
      statusDescription: "Unauthorized",
      body: "Unauthorized",
      headers: {
        "www-authenticate": [{ key: "WWW-Authenticate", value: "Basic" }]
      }
    };
    callback(null, response);
    return;
  }

  // Continue request processing if authentication passed
  callback(null, cfRequest);
};


config.js


"use strict";

module.exports = {
  authUser: "testuser",
  authPass: "testuserpass!"
 
};