openhim-core/lib/koaMiddleware.js

The OpenHIM core application that provides logging and routing of http requests

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.setupApp = setupApp;
exports.rerunApp = rerunApp;
exports.tcpApp = tcpApp;
exports.pollingApp = pollingApp;

var _koa = _interopRequireDefault(require("koa"));

var _rawBody = _interopRequireDefault(require("raw-body"));

var _koaCompress = _interopRequireDefault(require("koa-compress"));

var _zlib = require("zlib");

var router = _interopRequireWildcard(require("./middleware/router"));

var messageStore = _interopRequireWildcard(require("./middleware/messageStore"));

var basicAuthentication = _interopRequireWildcard(require("./middleware/basicAuthentication"));

var tlsAuthentication = _interopRequireWildcard(require("./middleware/tlsAuthentication"));

var rerunBypassAuthentication = _interopRequireWildcard(require("./middleware/rerunBypassAuthentication"));

var rerunBypassAuthorisation = _interopRequireWildcard(require("./middleware/rerunBypassAuthorisation"));

var rerunUpdateTransactionTask = _interopRequireWildcard(require("./middleware/rerunUpdateTransactionTask"));

var tcpBypassAuthentication = _interopRequireWildcard(require("./middleware/tcpBypassAuthentication"));

var retrieveTCPTransaction = _interopRequireWildcard(require("./middleware/retrieveTCPTransaction"));

var requestMatching = _interopRequireWildcard(require("./middleware/requestMatching"));

var authorisation = _interopRequireWildcard(require("./middleware/authorisation"));

var pollingBypassAuthorisation = _interopRequireWildcard(require("./middleware/pollingBypassAuthorisation"));

var pollingBypassAuthentication = _interopRequireWildcard(require("./middleware/pollingBypassAuthentication"));

var events = _interopRequireWildcard(require("./middleware/events"));

var proxy = _interopRequireWildcard(require("./middleware/proxy"));

var rewrite = _interopRequireWildcard(require("./middleware/rewriteUrls"));

var _config = require("./config");

function _getRequireWildcardCache() { if (typeof WeakMap !== "function") return null; var cache = new WeakMap(); _getRequireWildcardCache = function () { return cache; }; return cache; }

function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } if (obj === null || typeof obj !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

_config.config.authentication = _config.config.get('authentication');

async function rawBodyReader(ctx, next) {
  const body = await (0, _rawBody.default)(ctx.req);

  if (body) {
    ctx.body = body;
  }

  await next();
} // Primary app


function setupApp(done) {
  const app = new _koa.default(); // Basic authentication middleware

  if (_config.config.authentication.enableBasicAuthentication) {
    app.use(basicAuthentication.koaMiddleware);
  } // TLS authentication middleware


  if (_config.config.authentication.enableMutualTLSAuthentication) {
    app.use(tlsAuthentication.koaMiddleware);
  }

  app.use(rawBodyReader); // Request Matching middleware

  app.use(requestMatching.koaMiddleware); // Authorisation middleware

  app.use(authorisation.koaMiddleware); // Compress response on exit

  app.use((0, _koaCompress.default)({
    threshold: 8,
    flush: _zlib.Z_SYNC_FLUSH
  })); // Proxy

  app.use(proxy.koaMiddleware); // Persist message middleware

  app.use(messageStore.koaMiddleware); // URL rewriting middleware

  app.use(rewrite.koaMiddleware); // Events

  app.use(events.koaMiddleware); // Call router

  app.use(router.koaMiddleware);
  return done(app);
} // Rerun app that bypasses auth


function rerunApp(done) {
  const app = new _koa.default();
  app.use(rawBodyReader); // Rerun bypass authentication middlware

  app.use(rerunBypassAuthentication.koaMiddleware); // Rerun bypass authorisation middlware

  app.use(rerunBypassAuthorisation.koaMiddleware); // Update original transaction with rerunned transaction ID

  app.use(rerunUpdateTransactionTask.koaMiddleware); // Persist message middleware

  app.use(messageStore.koaMiddleware); // Authorisation middleware

  app.use(authorisation.koaMiddleware); // Events

  app.use(events.koaMiddleware); // Call router

  app.use(router.koaMiddleware);
  return done(app);
} // App for TCP/TLS sockets


function tcpApp(done) {
  const app = new _koa.default();
  app.use(rawBodyReader);
  app.use(retrieveTCPTransaction.koaMiddleware); // TCP bypass authentication middlware

  app.use(tcpBypassAuthentication.koaMiddleware); // Proxy

  app.use(proxy.koaMiddleware); // Persist message middleware

  app.use(messageStore.koaMiddleware); // Events

  app.use(events.koaMiddleware); // Call router

  app.use(router.koaMiddleware);
  return done(app);
} // App used by scheduled polling


function pollingApp(done) {
  const app = new _koa.default();
  app.use(rawBodyReader); // Polling bypass authentication middlware

  app.use(pollingBypassAuthentication.koaMiddleware); // Polling bypass authorisation middleware

  app.use(pollingBypassAuthorisation.koaMiddleware); // Persist message middleware

  app.use(messageStore.koaMiddleware); // Events

  app.use(events.koaMiddleware); // Call router

  app.use(router.koaMiddleware);
  return done(app);
}
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