ui/server/proxies/api.js

137 lines
3.5 KiB
JavaScript

module.exports = function(app, options) {
var path = require('path');
var ForeverAgent = require('forever-agent');
var HttpProxy = require('http-proxy');
var httpServer = options.httpServer;
var config = require('../../config/environment')().APP;
var proxy = HttpProxy.createProxyServer({
ws: true,
xfwd: false,
target: config.apiServer,
secure: false,
});
proxy.on('error', onProxyError);
// WebSocket for Rancher
httpServer.on('upgrade', function proxyWsRequest(req, socket, head) {
proxyLog('WS', req);
if ( socket.ssl ) {
req.headers['X-Forwarded-Proto'] = 'https';
}
proxy.ws(req, socket, head);
});
let map = {
'API': config.apiEndpoint,
'Legacy API': config.legacyApiEndpoint,
'Magic': config.magicEndpoint,
'Telemetry': config.telemetryEndpoint,
'WebHook': config.webhookEndpoint,
}
// Rancher API
console.log('Proxying API to', config.apiServer);
Object.keys(map).forEach(function(label) {
let base = map[label];
app.use(base, function(req, res, next) {
// include root path in proxied request
req.url = path.join(base, req.url);
req.headers['X-Forwarded-Proto'] = req.protocol;
proxyLog(label, req);
proxy.web(req, res);
});
});
// Kubernetes needs this API
app.use('/swaggerapi', function(req, res, next) {
// include root path in proxied request
req.url = path.join('/swaggerapi', req.url);
req.headers['X-Forwarded-Proto'] = req.protocol;
proxyLog('K8sSwag', req);
proxy.web(req, res);
});
app.use('/version', function(req, res, next) {
// include root path in proxied request
req.url = '/version';
req.headers['X-Forwarded-Proto'] = req.protocol;
proxyLog('K8sVers', req);
proxy.web(req, res);
});
// Catalog API
var catalogPath = config.catalogEndpoint;
// Default catalog to the regular API
var catalogServer = config.catalogServer || config.apiServer;
if ( catalogServer !== config.apiServer ) {
console.log('Proxying Catalog to', catalogServer);
}
app.use(catalogPath, function(req, res, next) {
req.headers['X-Forwarded-Proto'] = req.protocol;
var catalogProxy = HttpProxy.createProxyServer({
xfwd: false,
target: catalogServer
});
catalogProxy.on('error', onProxyError);
// include root path in proxied request
req.url = path.join(catalogPath, req.url);
proxyLog('Catalog', req);
catalogProxy.web(req, res);
});
// Auth API
var authPath = config.authEndpoint;
var authServer = config.authServer || config.apiServer;
if ( authServer !== config.apiServer ) {
console.log('Proxying Auth to', authServer);
}
app.use(authPath, function(req, res, next) {
req.headers['X-Forwarded-Proto'] = req.protocol;
var catalogProxy = HttpProxy.createProxyServer({
xfwd: false,
target: authServer
});
catalogProxy.on('error', onProxyError);
req.url = path.join(authPath, req.url);
proxyLog('Auth', req);
catalogProxy.web(req, res);
});
}
function onProxyError(err, req, res) {
console.log('Proxy Error on '+ req.method + ' to', req.url, err);
var error = {
type: 'error',
status: 500,
code: 'ProxyError',
message: 'Error connecting to proxy',
detail: err.toString()
}
if ( req.upgrade )
{
res.end();
}
else
{
res.writeHead(500, {'Content-Type': 'application/json'});
res.end(JSON.stringify(error));
}
}
function proxyLog(label, req) {
console.log('['+ label+ ']', req.method, req.url);
}