openecomp-ui/proxy-server.js

   1 'use strict';
   2
   3 const proxy = require('http-proxy-middleware');
   4
   5 let localDevConfig = {};
   6 try {
   7         localDevConfig = require('./devConfig');
   8 } catch (e) {}
   9 const devConfig = Object.assign({}, require('./devConfig.defaults'), localDevConfig);
  10 let devPort = process.env.PORT || devConfig.port;
  11
  12
  13 module.exports = function (server) {
  14         let cookieRules = devConfig.proxyConfig.cookieReplaceRules;
  15         let cookies = devConfig.proxyConfig.cookies;
  16         console.log('---------------------');
  17
  18         let proxyConfigDefaults = {
  19                 changeOrigin: true,
  20                 secure: false,
  21                 onProxyRes: (proxyRes, req, res) => {
  22                         let setCookie = proxyRes.headers['set-cookie'];
  23                         if (setCookie) {
  24                                 cookieRules.forEach(function(rule) {
  25                                         setCookie[0] = setCookie[0].replace(rule.replace, rule.with);
  26                                 });
  27                         }
  28                         if (proxyRes.statusCode === 302 && proxyRes.headers.location.indexOf(devConfig.proxyConfig.login) > -1) {
  29                                 proxyRes.headers.location = `http://localhost:${devPort}/${devConfig.proxyConfig.redirectionPath}`;
  30                                 let myCookies = [];
  31                                 for (let cookie in cookies) {
  32                                         myCookies.push(cookie + '=' + cookies[cookie]);
  33                                 }
  34                                 res.setHeader('Set-Cookie', myCookies);
  35                         }
  36                 }
  37         };
  38
  39         let middlewares = [
  40                 (req, res, next) => {
  41                         devConfig.proxyConfig.urlReplaceRules.forEach(function(rule) {
  42                                 if (req.url.indexOf(rule.url) > -1) {
  43                                         req.url = req.url.replace(rule.replace, rule.with);
  44                                 }
  45                         });
  46                         devConfig.proxyConfig.jsReplaceRules.forEach(function(rule) {
  47                                 let regex = new RegExp('^(.*)' + rule.replace);
  48                                 let match = req.url.match(regex);
  49                                 let newUrl = match && match[1] + rule.with + '.js';
  50                                 if (newUrl) {
  51                                         console.log(`REWRITING URL: ${req.url} -> ${newUrl}`);
  52                                         req.url = newUrl;
  53                                 }
  54                         });
  55                         next();
  56                 }
  57         ];
  58
  59
  60         let proxies = [];
  61
  62         // standalone back-end (proxyTarget) has higher priority, so it should be first
  63         if (devConfig.proxyTarget) {
  64                 console.log('Onboarding proxy set to : ' + devConfig.proxyTarget);
  65                 proxies.push({
  66                         target : devConfig.proxyTarget,
  67                         config: devConfig.proxyConfig.onboardingProxy}
  68                 );
  69         } else {
  70                 console.log('Catalog proxy set to : ' + devConfig.proxyCatalogTarget);
  71         }
  72         console.log('Catalog proxy set to : ' + devConfig.proxyCatalogTarget);
  73         proxies.push({
  74                 target : devConfig.proxyCatalogTarget,
  75                 config: devConfig.proxyConfig.catalogProxy}
  76         );
  77         proxies.forEach(function(p) {
  78                 middlewares.push(
  79                         proxy(p.config.proxy, Object.assign({}, proxyConfigDefaults, {
  80                                 target: p.target,
  81                                 pathRewrite: p.config.rewrite
  82                         }))
  83                 );
  84
  85         });
  86
  87         let websocketTarget = devConfig.proxyCatalogTarget;
  88         if (devConfig.proxyWebsocketTarget) {
  89                 websocketTarget = devConfig.proxyWebsocketTarget;
  90         }
  91         console.log('Websocket proxy set to : ' + websocketTarget);
  92         console.log('---------------------');
  93         var wsProxy = proxy(devConfig.proxyConfig.websocketProxy.proxy, Object.assign({}, proxyConfigDefaults, {
  94                 target: websocketTarget,
  95                 ws: true
  96         }))
  97         middlewares.push(wsProxy);
  98
  99
 100         server.use(middlewares);
 101         server.on('upgrade', wsProxy.upgrade);
 102 };