iframe-proxy | Sunbelt Computer Software

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import express from 'express'
import request from 'supertest'
import nock from 'nock'
import chai from 'chai'
import authProxy from '../../lib/handlers/auth-proxy.mjs'
const { expect } = chai
const HOST = 'solid.org'
const USER = 'https://ruben.verborgh.org/profile/#me'
describe('Auth Proxy', () => {
  describe('An auth proxy with 2 destinations', () => {
    let loggedIn = true
    let app
    before(() => {
      // Set up test back-end servers
      nock('http://server-a.org').persist()
        .get(/./).reply(200, addRequestDetails('a'))
      nock('https://server-b.org').persist()
        .get(/./).reply(200, addRequestDetails('b'))
      // Set up proxy server
      app = express()
      app.use((req, res, next) => {
        if (loggedIn) {
          req.session = { userId: USER }
        next()
      authProxy(app, {
        '/server/a': 'http://server-a.org',
        '/server/b': 'https://server-b.org/foo/bar'
    after(() => {
      // Release back-end servers
      nock.cleanAll()
    describe('responding to /server/a', () => {
      let response
      before(() => {
        return request(app).get('/server/a')
          .set('Host', HOST)
          .then(res => { response = res })
      it('proxies to http://server-a.org/', () => {
        const { server, path } = response.body
        expect(server).to.equal('a')
        expect(path).to.equal('/')
      it('sets the User header on the proxy request', () => {
        const { headers } = response.body
        expect(headers).to.have.property('user', USER)
      it('sets the Host header on the proxy request', () => {
        const { headers } = response.body
        expect(headers).to.have.property('host', 'server-a.org')
      it('sets the Forwarded header on the proxy request', () => {
        const { headers } = response.body
        expect(headers).to.have.property('forwarded', `host=${HOST}`)
      it('returns status code 200', () => {
        expect(response.statusCode).to.equal(200)
    describe('responding to /server/a/my/path?query=string', () => {
      let response
      before(() => {
        return request(app).get('/server/a/my/path?query=string')
          .set('Host', HOST)
          .then(res => { response = res })
      it('proxies to http://server-a.org/my/path?query=string', () => {
        const { server, path } = response.body
        expect(server).to.equal('a')
        expect(path).to.equal('/my/path?query=string')
      it('sets the User header on the proxy request', () => {
        const { headers } = response.body
        expect(headers).to.have.property('user', USER)
      it('sets the Host header on the proxy request', () => {
        const { headers } = response.body
        expect(headers).to.have.property('host', 'server-a.org')
      it('sets the Forwarded header on the proxy request', () => {
        const { headers } = response.body
        expect(headers).to.have.property('forwarded', `host=${HOST}`)
      it('returns status code 200', () => {
        expect(response.statusCode).to.equal(200)
    describe('responding to /server/b', () => {
      let response
      before(() => {
        return request(app).get('/server/b')
          .set('Host', HOST)
          .then(res => { response = res })
      it('proxies to http://server-b.org/foo/bar', () => {
        const { server, path } = response.body
        expect(server).to.equal('b')
        expect(path).to.equal('/foo/bar')
      it('sets the User header on the proxy request', () => {
        const { headers } = response.body
        expect(headers).to.have.property('user', USER)
      it('sets the Host header on the proxy request', () => {
        const { headers } = response.body
        expect(headers).to.have.property('host', 'server-b.org')
      it('sets the Forwarded header on the proxy request', () => {
        const { headers } = response.body
        expect(headers).to.have.property('forwarded', `host=${HOST}`)
      it('returns status code 200', () => {
        expect(response.statusCode).to.equal(200)
    describe('responding to /server/b/my/path?query=string', () => {
      let response
      before(() => {
        return request(app).get('/server/b/my/path?query=string')
          .set('Host', HOST)
          .then(res => { response = res })
      it('proxies to http://server-b.org/foo/bar/my/path?query=string', () => {
        const { server, path } = response.body
        expect(server).to.equal('b')
        expect(path).to.equal('/foo/bar/my/path?query=string')
      it('sets the User header on the proxy request', () => {
        const { headers } = response.body
        expect(headers).to.have.property('user', USER)
      it('sets the Host header on the proxy request', () => {
        const { headers } = response.body
        expect(headers).to.have.property('host', 'server-b.org')
      it('sets the Forwarded header on the proxy request', () => {
        const { headers } = response.body
        expect(headers).to.have.property('forwarded', `host=${HOST}`)
      it('returns status code 200', () => {
        expect(response.statusCode).to.equal(200)
    describe('responding to /server/a without a logged-in user', () => {
      let response
      before(() => {
        loggedIn = false
        return request(app).get('/server/a')
          .set('Host', HOST)
          .then(res => { response = res })
      after(() => {
        loggedIn = true
      it('proxies to http://server-a.org/', () => {
        const { server, path } = response.body
        expect(server).to.equal('a')
        expect(path).to.equal('/')
      it('does not set the User header on the proxy request', () => {
        const { headers } = response.body
        expect(headers).to.not.have.property('user')
      it('sets the Host header on the proxy request', () => {
        const { headers } = response.body
        expect(headers).to.have.property('host', 'server-a.org')
      it('sets the Forwarded header on the proxy request', () => {
        const { headers } = response.body
        expect(headers).to.have.property('forwarded', `host=${HOST}`)
      it('returns status code 200', () => {
        expect(response.statusCode).to.equal(200)
function addRequestDetails (server) {
  return function (path) {
    return { server, path, headers: this.req.headers }
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