131 lines
6.8 KiB
JavaScript
131 lines
6.8 KiB
JavaScript
'use strict';
|
||
|
||
const fs = require('fs');
|
||
const errorOverlayMiddleware = require('react-dev-utils/errorOverlayMiddleware');
|
||
const evalSourceMapMiddleware = require('react-dev-utils/evalSourceMapMiddleware');
|
||
const noopServiceWorkerMiddleware = require('react-dev-utils/noopServiceWorkerMiddleware');
|
||
const ignoredFiles = require('react-dev-utils/ignoredFiles');
|
||
const redirectServedPath = require('react-dev-utils/redirectServedPathMiddleware');
|
||
const paths = require('./paths');
|
||
const getHttpsConfig = require('./getHttpsConfig');
|
||
|
||
const host = process.env.HOST || '0.0.0.0';
|
||
const sockHost = process.env.WDS_SOCKET_HOST;
|
||
const sockPath = process.env.WDS_SOCKET_PATH; // default: '/sockjs-node'
|
||
const sockPort = process.env.WDS_SOCKET_PORT;
|
||
|
||
module.exports = function (proxy, allowedHost) {
|
||
return {
|
||
// WebpackDevServer 2.4.3 introduced a security fix that prevents remote
|
||
// websites from potentially accessing local content through DNS rebinding:
|
||
// https://github.com/webpack/webpack-dev-server/issues/887
|
||
// https://medium.com/webpack/webpack-dev-server-middleware-security-issues-1489d950874a
|
||
// However, it made several existing use cases such as development in cloud
|
||
// environment or subdomains in development significantly more complicated:
|
||
// https://github.com/facebook/create-react-app/issues/2271
|
||
// https://github.com/facebook/create-react-app/issues/2233
|
||
// While we're investigating better solutions, for now we will take a
|
||
// compromise. Since our WDS configuration only serves files in the `public`
|
||
// folder we won't consider accessing them a vulnerability. However, if you
|
||
// use the `proxy` feature, it gets more dangerous because it can expose
|
||
// remote code execution vulnerabilities in backends like Django and Rails.
|
||
// So we will disable the host check normally, but enable it if you have
|
||
// specified the `proxy` setting. Finally, we let you override it if you
|
||
// really know what you're doing with a special environment variable.
|
||
disableHostCheck:
|
||
!proxy || process.env.DANGEROUSLY_DISABLE_HOST_CHECK === 'true',
|
||
// Enable gzip compression of generated files.
|
||
compress: true,
|
||
// Silence WebpackDevServer's own logs since they're generally not useful.
|
||
// It will still show compile warnings and errors with this setting.
|
||
clientLogLevel: 'none',
|
||
// By default WebpackDevServer serves physical files from current directory
|
||
// in addition to all the virtual build products that it serves from memory.
|
||
// This is confusing because those files won’t automatically be available in
|
||
// production build folder unless we copy them. However, copying the whole
|
||
// project directory is dangerous because we may expose sensitive files.
|
||
// Instead, we establish a convention that only files in `public` directory
|
||
// get served. Our build script will copy `public` into the `build` folder.
|
||
// In `index.html`, you can get URL of `public` folder with %PUBLIC_URL%:
|
||
// <link rel="icon" href="%PUBLIC_URL%/favicon.ico">
|
||
// In JavaScript code, you can access it with `process.env.PUBLIC_URL`.
|
||
// Note that we only recommend to use `public` folder as an escape hatch
|
||
// for files like `favicon.ico`, `manifest.json`, and libraries that are
|
||
// for some reason broken when imported through webpack. If you just want to
|
||
// use an image, put it in `src` and `import` it from JavaScript instead.
|
||
contentBase: paths.appPublic,
|
||
contentBasePublicPath: paths.publicUrlOrPath,
|
||
// By default files from `contentBase` will not trigger a page reload.
|
||
watchContentBase: true,
|
||
// Enable hot reloading server. It will provide WDS_SOCKET_PATH endpoint
|
||
// for the WebpackDevServer client so it can learn when the files were
|
||
// updated. The WebpackDevServer client is included as an entry point
|
||
// in the webpack development configuration. Note that only changes
|
||
// to CSS are currently hot reloaded. JS changes will refresh the browser.
|
||
hot: true,
|
||
// Use 'ws' instead of 'sockjs-node' on server since we're using native
|
||
// websockets in `webpackHotDevClient`.
|
||
transportMode: 'ws',
|
||
// Prevent a WS client from getting injected as we're already including
|
||
// `webpackHotDevClient`.
|
||
injectClient: false,
|
||
// Enable custom sockjs pathname for websocket connection to hot reloading server.
|
||
// Enable custom sockjs hostname, pathname and port for websocket connection
|
||
// to hot reloading server.
|
||
sockHost,
|
||
sockPath,
|
||
sockPort,
|
||
// It is important to tell WebpackDevServer to use the same "publicPath" path as
|
||
// we specified in the webpack config. When homepage is '.', default to serving
|
||
// from the root.
|
||
// remove last slash so user can land on `/test` instead of `/test/`
|
||
publicPath: paths.publicUrlOrPath.slice(0, -1),
|
||
// WebpackDevServer is noisy by default so we emit custom message instead
|
||
// by listening to the compiler events with `compiler.hooks[...].tap` calls above.
|
||
quiet: true,
|
||
// Reportedly, this avoids CPU overload on some systems.
|
||
// https://github.com/facebook/create-react-app/issues/293
|
||
// src/node_modules is not ignored to support absolute imports
|
||
// https://github.com/facebook/create-react-app/issues/1065
|
||
watchOptions: {
|
||
ignored: ignoredFiles(paths.appSrc),
|
||
},
|
||
https: getHttpsConfig(),
|
||
host,
|
||
overlay: false,
|
||
historyApiFallback: {
|
||
// Paths with dots should still use the history fallback.
|
||
// See https://github.com/facebook/create-react-app/issues/387.
|
||
disableDotRule: true,
|
||
index: paths.publicUrlOrPath,
|
||
},
|
||
public: allowedHost,
|
||
// `proxy` is run between `before` and `after` `webpack-dev-server` hooks
|
||
proxy,
|
||
before(app, server) {
|
||
// Keep `evalSourceMapMiddleware` and `errorOverlayMiddleware`
|
||
// middlewares before `redirectServedPath` otherwise will not have any effect
|
||
// This lets us fetch source contents from webpack for the error overlay
|
||
app.use(evalSourceMapMiddleware(server));
|
||
// This lets us open files from the runtime error overlay.
|
||
app.use(errorOverlayMiddleware());
|
||
|
||
if (fs.existsSync(paths.proxySetup)) {
|
||
// This registers user provided middleware for proxy reasons
|
||
require(paths.proxySetup)(app);
|
||
}
|
||
},
|
||
after(app) {
|
||
// Redirect to `PUBLIC_URL` or `homepage` from `package.json` if url not match
|
||
app.use(redirectServedPath(paths.publicUrlOrPath));
|
||
|
||
// This service worker file is effectively a 'no-op' that will reset any
|
||
// previous service worker registered for the same host:port combination.
|
||
// We do this in development to avoid hitting the production cache if
|
||
// it used the same host and port.
|
||
// https://github.com/facebook/create-react-app/issues/2272#issuecomment-302832432
|
||
app.use(noopServiceWorkerMiddleware(paths.publicUrlOrPath));
|
||
},
|
||
};
|
||
};
|