electron/spec-main/security-warnings-spec.ts

import { expect } from 'chai'
import * as http from 'http'
import * as fs from 'fs'
import * as path from 'path'
import * as url from 'url'

import { BrowserWindow, WebPreferences } from 'electron'

import { closeWindow } from './window-helpers'
import { AddressInfo } from 'net';
import { emittedUntil } from './events-helpers';

const messageContainsSecurityWarning = (event: Event, level: number, message: string) => {
  return message.indexOf('Electron Security Warning') > -1
}

const isLoaded = (event: Event, level: number, message: string) => {
  return (message === 'loaded')
}

describe('security warnings', () => {
  let server: http.Server
  let w: BrowserWindow
  let useCsp = true
  let serverUrl: string

  before((done) => {
    // Create HTTP Server
    server = http.createServer((request, response) => {
      const uri = url.parse(request.url!).pathname!
      let filename = path.join(__dirname, '..', 'spec', 'fixtures', 'pages', uri)

      fs.stat(filename, (error, stats) => {
        if (error) {
          response.writeHead(404, { 'Content-Type': 'text/plain' })
          response.end()
          return
        }

        if (stats.isDirectory()) {
          filename += '/index.html'
        }

        fs.readFile(filename, 'binary', (err, file) => {
          if (err) {
            response.writeHead(404, { 'Content-Type': 'text/plain' })
            response.end()
            return
          }

          const cspHeaders = { 'Content-Security-Policy': `script-src 'self' 'unsafe-inline'` }
          response.writeHead(200, useCsp ? cspHeaders : undefined)
          response.write(file, 'binary')
          response.end()
        })
      })
    }).listen(0, '127.0.0.1', () => {
      serverUrl = `http://127.0.0.1:${(server.address() as AddressInfo).port}`
      done()
    })
  })

  after(() => {
    // Close server
    server.close()
    server = null as unknown as any
  })

  afterEach(async () => {
    useCsp = true
    await closeWindow(w)
    w = null as unknown as any
  })

  it('should warn about Node.js integration with remote content', async () => {
    w = new BrowserWindow({
      show: false,
      webPreferences: {
        nodeIntegration: true
      }
    })

    w.loadURL(`${serverUrl}/base-page-security.html`)
    const [,, message] = await emittedUntil(w.webContents, 'console-message', messageContainsSecurityWarning)
    expect(message).to.include('Node.js Integration with Remote Content')
  })

  it('should not warn about Node.js integration with remote content from localhost', async () => {
    w = new BrowserWindow({
      show: false,
      webPreferences: {
        nodeIntegration: true
      }
    })

    w.loadURL(`${serverUrl}/base-page-security-onload-message.html`)
    const [,, message] = await emittedUntil(w.webContents, 'console-message', isLoaded)
    expect(message).to.not.include('Node.js Integration with Remote Content')
  })

  const generateSpecs = (description: string, webPreferences: WebPreferences) => {
    describe(description, () => {
      it('should warn about disabled webSecurity', async () => {
        w = new BrowserWindow({
          show: false,
          webPreferences: {
            webSecurity: false,
            ...webPreferences
          }
        })

        w.loadURL(`${serverUrl}/base-page-security.html`)
        const [,, message] = await emittedUntil(w.webContents, 'console-message', messageContainsSecurityWarning)
        expect(message).to.include('Disabled webSecurity')
      })

      it('should warn about insecure Content-Security-Policy', async () => {
        w = new BrowserWindow({
          show: false,
          webPreferences: {
            enableRemoteModule: false,
            ...webPreferences
          }
        })

        useCsp = false
        w.loadURL(`${serverUrl}/base-page-security.html`)
        const [,, message] = await emittedUntil(w.webContents, 'console-message', messageContainsSecurityWarning)
        expect(message).to.include('Insecure Content-Security-Policy')
      })

      it('should warn about allowRunningInsecureContent', async () => {
        w = new BrowserWindow({
          show: false,
          webPreferences: {
            allowRunningInsecureContent: true,
            ...webPreferences
          }
        })

        w.loadURL(`${serverUrl}/base-page-security.html`)
        const [,, message] = await emittedUntil(w.webContents, 'console-message', messageContainsSecurityWarning)
        expect(message).to.include('allowRunningInsecureContent')
      })

      it('should warn about experimentalFeatures', async () => {
        w = new BrowserWindow({
          show: false,
          webPreferences: {
            experimentalFeatures: true,
            ...webPreferences
          }
        })

        w.loadURL(`${serverUrl}/base-page-security.html`)
        const [,, message] = await emittedUntil(w.webContents, 'console-message', messageContainsSecurityWarning)
        expect(message).to.include('experimentalFeatures')
      })

      it('should warn about enableBlinkFeatures', async () => {
        w = new BrowserWindow({
          show: false,
          webPreferences: {
            enableBlinkFeatures: 'my-cool-feature',
            ...webPreferences
          }
        })

        w.loadURL(`${serverUrl}/base-page-security.html`)
        const [,, message] = await emittedUntil(w.webContents, 'console-message', messageContainsSecurityWarning)
        expect(message).to.include('enableBlinkFeatures')
      })

      it('should warn about allowpopups', async () => {
        w = new BrowserWindow({
          show: false,
          webPreferences
        })

        w.loadURL(`${serverUrl}/webview-allowpopups.html`)
        const [,, message] = await emittedUntil(w.webContents, 'console-message', messageContainsSecurityWarning)
        expect(message).to.include('allowpopups')
      })

      it('should warn about insecure resources', async () => {
        w = new BrowserWindow({
          show: false,
          webPreferences: { ...webPreferences }
        })

        w.loadURL(`${serverUrl}/insecure-resources.html`)
        const [,, message] = await emittedUntil(w.webContents, 'console-message', messageContainsSecurityWarning)
        expect(message).to.include('Insecure Resources')
      })

      it('should not warn about loading insecure-resources.html from localhost', async () => {
        w = new BrowserWindow({
          show: false,
          webPreferences
        })

        w.loadURL(`${serverUrl}/insecure-resources.html`)
        const [,, message] = await emittedUntil(w.webContents, 'console-message', messageContainsSecurityWarning)        
        expect(message).to.not.include('insecure-resources.html')
      })

      it('should warn about enabled remote module with remote content', async () => {
        w = new BrowserWindow({
          show: false,
          webPreferences
        })

        w.loadURL(`${serverUrl}/base-page-security.html`)
        const [,, message] = await emittedUntil(w.webContents, 'console-message', messageContainsSecurityWarning)
        expect(message).to.include('enableRemoteModule')
      })

      it('should not warn about enabled remote module with remote content from localhost', async () => {
        w = new BrowserWindow({
          show: false,
          webPreferences
        })
        w.loadURL(`${serverUrl}/base-page-security-onload-message.html`)
        const [,, message] = await emittedUntil(w.webContents, 'console-message', isLoaded)
        expect(message).to.not.include('enableRemoteModule')
      })
    })
  }

  generateSpecs('without sandbox', {})
  generateSpecs('with sandbox', { sandbox: true })
})