mirror of https://github.com/rancher/ui.git
139 lines
3.4 KiB
JavaScript
139 lines
3.4 KiB
JavaScript
/* eslint-env node */
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const path = require('path');
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const HttpProxy = require('http-proxy');
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const config = require('../../config/environment')(process.env.EMBER_ENV).APP;
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module.exports = function(app, options) {
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var httpServer = options.httpServer;
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const proxy = HttpProxy.createProxyServer({
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ws: true,
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xfwd: false,
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target: config.apiServer,
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secure: false,
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followRedirects: true,
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});
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proxy.on('error', onProxyError);
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// WebSocket for Rancher
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httpServer.on('upgrade', (req, socket, head) => {
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if ( req.url.startsWith('/_lr/') ) {
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return;
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}
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let targetHost = config.apiServer.replace(/^https?:\/\//, '');
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let host = req.headers['host'];
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let port;
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if ( socket.ssl ) {
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req.headers['x-forwarded-proto'] = 'https';
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port = 443;
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} else {
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req.headers['x-forwarded-proto'] = 'http';
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port = 80;
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}
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if ( host ) {
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idx = host.lastIndexOf(':');
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if ( ( host.startsWith('[') && host.includes(']:') || !host.startsWith('[') ) && idx > 0 ){
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port = host.substr(idx+1);
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host = host.substr(0, host.lastIndexOf(':'));
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}
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}
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req.headers['x-forwarded-host'] = host;
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req.headers['x-forwarded-port'] = port;
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req.headers['host'] = targetHost;
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req.headers['origin'] = config.apiServer;
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req.socket.servername = targetHost;
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proxyLog('WS', req);
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try {
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proxy.ws(req, socket, head);
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} catch (err) {
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proxyLog(err);
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}
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});
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let map = {
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'Project': config.projectEndpoint.replace(config.projectToken, ''),
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'Cluster': config.clusterEndpoint.replace(config.clusterToken, ''),
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'Global': config.apiEndpoint,
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'Public': config.publicApiEndpoint,
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'Magic': config.magicEndpoint,
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'Telemetry': config.telemetryEndpoint,
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'K8s': '/k8s',
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'Meta': '/meta',
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'Swagger': '/swaggerapi',
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'Version': '/version',
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'Apiui': '/api-ui',
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'Samlauth': '/v1-saml',
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}
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app.use('/', function(req, res, next) {
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if ( (req.headers['user-agent']||'').toLowerCase().includes('mozilla') ) {
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next();
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} else {
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proxyLog('Root', req);
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req.headers['X-Forwarded-Proto'] = req.protocol;
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proxy.web(req, res);
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}
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}),
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console.log('Proxying APIs to', config.apiServer);
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Object.keys(map).forEach(function(label) {
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let base = map[label];
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app.use(base, function(req, res, next) {
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if ( req.url === '/' ) {
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req.url = '';
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}
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// include root path in proxied request
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req.url = path.join(base, req.url);
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req.headers['X-Forwarded-Proto'] = req.protocol;
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// don't include the original host header
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req.headers['X-Forwarded-Host'] = req.headers['host'];
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delete req.headers['host'];
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proxyLog(label, req);
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proxy.web(req, res);
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});
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});
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}
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function onProxyError(err, req, res) {
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console.log('Proxy Error on '+ req.method + ' to', req.url, err);
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var error = {
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type: 'error',
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status: 500,
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code: 'ProxyError',
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message: 'Error connecting to proxy',
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detail: err.toString()
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}
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if ( req.upgrade )
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{
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res.end();
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}
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else
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{
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res.writeHead(500, {'Content-Type': 'application/json'});
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res.end(JSON.stringify(error));
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}
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}
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function proxyLog(label, req) {
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console.log(`[${ label }]`, req.method, req.url);
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}
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function proxyError(label, req, err) {
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console.error(`[${ label }][${ req._source }]`, req.method, req.url, err);
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}
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