feat(xo-server): multi processes

If a single VM has been imported, redirect to its page.

If multiple VMs has been imported, redirect to the homepage with all other VMs filtered out.

.eslintrc.js

@@ -12,9 +12,11 @@ module.exports = {
   parser: 'babel-eslint',
   rules: {
     'comma-dangle': ['error', 'always-multiline'],
+    indent: 'off',
     'no-var': 'error',
     'node/no-extraneous-import': 'error',
     'node/no-extraneous-require': 'error',
     'prefer-const': 'error',
+    'react/jsx-indent': 'off',
   },
 }

.gitignore

@@ -8,6 +8,8 @@
 /packages/*/dist/
 /packages/*/node_modules/
 
+/packages/vhd-cli/src/commands/index.js
+
 /packages/xen-api/plot.dat
 
 /packages/xo-server/.xo-server.*

.travis.yml

@@ -1,12 +1,18 @@
 language: node_js
 node_js:
-  - stable
+  #- stable # disable for now due to an issue of indirect dep upath with Node 9
   - 8
   - 6
 
 # Use containers.
 # http://docs.travis-ci.com/user/workers/container-based-infrastructure/
 sudo: false
+addons:
+  apt:
+    packages:
+    - qemu-utils
+    - blktap-utils
+    - vmdk-stream-converter
 
 before_install:
   - curl -o- -L https://yarnpkg.com/install.sh | bash
@@ -14,3 +20,7 @@ before_install:
 
 cache:
   yarn: true
+
+script:
+  - yarn run test
+  - yarn run test-integration

@xen-orchestra/babel-config/package.json

@@ -2,7 +2,7 @@
   "private": true,
   "name": "@xen-orchestra/babel-config",
   "version": "0.0.0",
-  "homepage": "https://github.com/vatesfr/xen-orchestra/tree/master/packages/@xen-orchestra/babel-config",
+  "homepage": "https://github.com/vatesfr/xen-orchestra/tree/master/@xen-orchestra/babel-config",
   "bugs": "https://github.com/vatesfr/xen-orchestra/issues",
   "repository": {
     "type": "git",

@xen-orchestra/cron/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@xen-orchestra/cron",
-  "version": "1.0.2",
+  "version": "1.0.3",
   "license": "ISC",
   "description": "Focused, well maintained, cron parser/scheduler",
   "keywords": [
@@ -14,7 +14,7 @@
     "scheduling",
     "task"
   ],
-  "homepage": "https://github.com/vatesfr/xen-orchestra/tree/master/packages/@xen-orchestra/cron",
+  "homepage": "https://github.com/vatesfr/xen-orchestra/tree/master/@xen-orchestra/cron",
   "bugs": "https://github.com/vatesfr/xen-orchestra/issues",
   "repository": {
     "type": "git",
@@ -41,10 +41,10 @@
     "moment-timezone": "^0.5.14"
   },
   "devDependencies": {
-    "@babel/cli": "7.0.0-beta.40",
-    "@babel/core": "7.0.0-beta.40",
-    "@babel/preset-env": "7.0.0-beta.40",
-    "@babel/preset-flow": "7.0.0-beta.40",
+    "@babel/cli": "7.0.0-beta.44",
+    "@babel/core": "7.0.0-beta.44",
+    "@babel/preset-env": "7.0.0-beta.44",
+    "@babel/preset-flow": "7.0.0-beta.44",
     "cross-env": "^5.1.3",
     "rimraf": "^2.6.2"
   },

@xen-orchestra/cron/src/next.spec.js

@@ -41,4 +41,8 @@ describe('next()', () => {
       'no solutions found for this schedule'
     )
   })
+
+  it('select the first sunday of the month', () => {
+    expect(N('* * * * 0', '2018-03-31T00:00')).toBe('2018-04-01T00:00')
+  })
 })

@xen-orchestra/cron/src/parse.js

@@ -176,10 +176,10 @@ export default createParser({
       range: [0, 11],
     },
     {
-      aliases: 'mon tue wen thu fri sat sun'.split(' '),
+      aliases: 'sun mon tue wen thu fri sat'.split(' '),
       name: 'dayOfWeek',
-      post: value => (value === 0 ? 7 : value),
-      range: [1, 7],
+      post: value => (value === 7 ? 0 : value),
+      range: [0, 6],
     },
   ],
   presets: {

@xen-orchestra/cron/src/parse.spec.js

@@ -23,7 +23,7 @@ describe('parse()', () => {
 
   it('correctly parse days', () => {
     expect(parse('* * * * mon,sun')).toEqual({
-      dayOfWeek: [1, 7],
+      dayOfWeek: [0, 1],
     })
   })
 
@@ -40,10 +40,10 @@ describe('parse()', () => {
 
   it('dayOfWeek: 0 and 7 bind to sunday', () => {
     expect(parse('* * * * 0')).toEqual({
-      dayOfWeek: [7],
+      dayOfWeek: [0],
     })
     expect(parse('* * * * 7')).toEqual({
-      dayOfWeek: [7],
+      dayOfWeek: [0],
     })
   })
 })

@xen-orchestra/fs/.babelrc.js

@@ -0,0 +1,3 @@
+module.exports = require('../../@xen-orchestra/babel-config')(
+  require('./package.json')
+)

@xen-orchestra/fs/package.json

@@ -0,0 +1,54 @@
+{
+  "name": "@xen-orchestra/fs",
+  "version": "0.0.0",
+  "license": "AGPL-3.0",
+  "description": "The File System for Xen Orchestra backups.",
+  "keywords": [],
+  "homepage": "https://github.com/vatesfr/xen-orchestra/tree/master/@xen-orchestra/fs",
+  "bugs": "https://github.com/vatesfr/xen-orchestra/issues",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/vatesfr/xen-orchestra.git"
+  },
+  "preferGlobal": true,
+  "main": "dist/",
+  "bin": {},
+  "files": [
+    "dist/"
+  ],
+  "engines": {
+    "node": ">=6"
+  },
+  "dependencies": {
+    "@babel/runtime": "^7.0.0-beta.44",
+    "@marsaud/smb2-promise": "^0.2.1",
+    "execa": "^0.10.0",
+    "fs-extra": "^5.0.0",
+    "get-stream": "^3.0.0",
+    "lodash": "^4.17.4",
+    "promise-toolbox": "^0.9.5",
+    "through2": "^2.0.3",
+    "tmp": "^0.0.33",
+    "xo-remote-parser": "^0.3"
+  },
+  "devDependencies": {
+    "@babel/cli": "7.0.0-beta.44",
+    "@babel/core": "7.0.0-beta.44",
+    "@babel/plugin-proposal-function-bind": "7.0.0-beta.44",
+    "@babel/plugin-transform-runtime": "^7.0.0-beta.44",
+    "@babel/preset-env": "7.0.0-beta.44",
+    "@babel/preset-flow": "7.0.0-beta.44",
+    "babel-plugin-lodash": "^3.3.2",
+    "cross-env": "^5.1.3",
+    "index-modules": "^0.3.0",
+    "rimraf": "^2.6.2"
+  },
+  "scripts": {
+    "build": "cross-env NODE_ENV=production babel --source-maps --out-dir=dist/ src/",
+    "clean": "rimraf dist/",
+    "dev": "cross-env NODE_ENV=development babel --watch --source-maps --out-dir=dist/ src/",
+    "prebuild": "yarn run clean",
+    "predev": "yarn run clean",
+    "prepare": "yarn run build"
+  }
+}

@xen-orchestra/fs/src/abstract.js

@@ -1,11 +1,11 @@
 // @flow
 
+import getStream from 'get-stream'
+import { randomBytes } from 'crypto'
+import { fromCallback, fromEvent, ignoreErrors } from 'promise-toolbox'
 import { type Readable, type Writable } from 'stream'
-import { fromEvent, ignoreErrors } from 'promise-toolbox'
 import { parse } from 'xo-remote-parser'
 
-import { getPseudoRandomBytes, streamToBuffer } from '../utils'
-
 import { createChecksumStream, validChecksumOfReadStream } from './checksum'
 
 type Data = Buffer | Readable | string
@@ -54,7 +54,7 @@ export default class RemoteHandlerAbstract {
 
   async test (): Promise<Object> {
     const testFileName = `${Date.now()}.test`
-    const data = getPseudoRandomBytes(1024 * 1024)
+    const data = await fromCallback(cb => randomBytes(1024 * 1024, cb))
     let step = 'write'
     try {
       await this.outputFile(testFileName, data)
@@ -97,7 +97,7 @@ export default class RemoteHandlerAbstract {
   }
 
   _readFile (file: string, options?: Object): Promise<Buffer> {
-    return this.createReadStream(file, options).then(streamToBuffer)
+    return this.createReadStream(file, options).then(getStream.buffer)
   }
 
   async rename (

@xen-orchestra/fs/src/fs.integ.spec.js

@@ -0,0 +1,26 @@
+/* eslint-env jest */
+
+import rimraf from 'rimraf'
+import tmp from 'tmp'
+
+import { fromCallback as pFromCallback } from 'promise-toolbox'
+import { getHandler } from '.'
+
+const initialDir = process.cwd()
+
+beforeEach(async () => {
+  const dir = await pFromCallback(cb => tmp.dir(cb))
+  process.chdir(dir)
+})
+
+afterEach(async () => {
+  const tmpDir = process.cwd()
+  process.chdir(initialDir)
+  await pFromCallback(cb => rimraf(tmpDir, cb))
+})
+
+test("fs test doesn't crash", async () => {
+  const handler = getHandler({ url: 'file://' + process.cwd() })
+  const result = await handler.test()
+  expect(result.success).toBeTruthy()
+})

@xen-orchestra/fs/src/index.js

@@ -0,0 +1,26 @@
+// @flow
+
+import type RemoteHandler from './abstract'
+import RemoteHandlerLocal from './local'
+import RemoteHandlerNfs from './nfs'
+import RemoteHandlerSmb from './smb'
+
+export type { default as RemoteHandler } from './abstract'
+export type Remote = { url: string }
+
+const HANDLERS = {
+  file: RemoteHandlerLocal,
+  smb: RemoteHandlerSmb,
+  nfs: RemoteHandlerNfs,
+}
+
+export const getHandler = (remote: Remote): RemoteHandler => {
+  // FIXME: should be done in xo-remote-parser.
+  const type = remote.url.split('://')[0]
+
+  const Handler = HANDLERS[type]
+  if (!Handler) {
+    throw new Error('Unhandled remote type')
+  }
+  return new Handler(remote)
+}

@xen-orchestra/fs/src/smb.js

@@ -1,7 +1,9 @@
 import Smb2 from '@marsaud/smb2-promise'
+import { lastly as pFinally } from 'promise-toolbox'
 
 import RemoteHandlerAbstract from './abstract'
-import { noop, pFinally } from '../utils'
+
+const noop = () => {}
 
 // Normalize the error code for file not found.
 const normalizeError = error => {

@xen-orchestra/log/.babelrc.js

@@ -0,0 +1,3 @@
+module.exports = require('../../@xen-orchestra/babel-config')(
+  require('./package.json')
+)

@xen-orchestra/log/.npmignore

@@ -0,0 +1,24 @@
+/benchmark/
+/benchmarks/
+*.bench.js
+*.bench.js.map
+
+/examples/
+example.js
+example.js.map
+*.example.js
+*.example.js.map
+
+/fixture/
+/fixtures/
+*.fixture.js
+*.fixture.js.map
+*.fixtures.js
+*.fixtures.js.map
+
+/test/
+/tests/
+*.spec.js
+*.spec.js.map
+
+__snapshots__/

@xen-orchestra/log/README.md

@@ -0,0 +1,149 @@
+# @xen-orchestra/log [![Build Status](https://travis-ci.org/vatesfr/xen-orchestra.png?branch=master)](https://travis-ci.org/vatesfr/xen-orchestra)
+
+> ${pkg.description}
+
+## Install
+
+Installation of the [npm package](https://npmjs.org/package/@xen-orchestra/log):
+
+```
+> npm install --save @xen-orchestra/log
+```
+
+## Usage
+
+Everywhere something should be logged:
+
+```js
+import { createLogger } from '@xen-orchestra/log'
+
+const log = createLogger('xo-server-api')
+log.warn('foo')
+```
+
+Then at application level you can choose how to handle these logs:
+
+```js
+import configure from '@xen-orchestra/log/configure'
+import createConsoleTransport from '@xen-orchestra/log/transports/console'
+import createEmailTransport from '@xen-orchestra/log/transports/email'
+
+configure([
+  {
+    // if filter is a string, then it is pattern
+    // (https://github.com/visionmedia/debug#wildcards) which is
+    // matched against the namespace of the logs
+    filter: process.env.DEBUG,
+
+    transport: createConsoleTransport()
+  },
+  {
+    // only levels >= warn
+    level: 'warn',
+
+    transport: createEmaileTransport({
+      service: 'gmail',
+      auth: {
+        user: 'jane.smith@gmail.com',
+        pass: 'H&NbECcpXF|pyXe#%ZEb'
+      },
+      from: 'jane.smith@gmail.com',
+      to: [
+        'jane.smith@gmail.com',
+        'sam.doe@yahoo.com'
+      ]
+    })
+  }
+])
+```
+
+### Transports
+
+#### Console
+
+```js
+import createConsoleTransport from '@xen-orchestra/log/transports/console'
+
+configure(createConsoleTransport())
+```
+
+#### Email
+
+Optional dependency:
+
+```
+> yarn add nodemailer pretty-format
+```
+
+Configuration:
+
+```js
+import createEmailTransport from '@xen-orchestra/log/transports/email'
+
+configure(createEmailTransport({
+  service: 'gmail',
+  auth: {
+    user: 'jane.smith@gmail.com',
+    pass: 'H&NbECcpXF|pyXe#%ZEb'
+  },
+  from: 'jane.smith@gmail.com',
+  to: [
+    'jane.smith@gmail.com',
+    'sam.doe@yahoo.com'
+  ]
+}))
+```
+
+#### Syslog
+
+Optional dependency:
+
+```
+> yarn add split-host syslog-client
+```
+
+Configuration:
+
+```js
+import createSyslogTransport from '@xen-orchestra/log/transports/syslog'
+
+// By default, log to udp://localhost:514
+configure(createSyslogTransport())
+
+// But TCP, a different host, or a different port can be used
+configure(createSyslogTransport('tcp://syslog.company.lan'))
+```
+
+## Development
+
+```
+# Install dependencies
+> yarn
+
+# Run the tests
+> yarn test
+
+# Continuously compile
+> yarn dev
+
+# Continuously run the tests
+> yarn dev-test
+
+# Build for production (automatically called by npm install)
+> yarn build
+```
+
+## Contributions
+
+Contributions are *very* welcomed, either on the documentation or on
+the code.
+
+You may:
+
+- report any [issue](https://github.com/vatesfr/xo-web/issues/)
+  you've encountered;
+- fork and create a pull request.
+
+## License
+
+ISC © [Vates SAS](https://vates.fr)

@xen-orchestra/log/configure.js

@@ -0,0 +1 @@
+module.exports = require('./dist/configure')

@xen-orchestra/log/package.json

@@ -0,0 +1,52 @@
+{
+  "private": true,
+  "name": "@xen-orchestra/log",
+  "version": "0.0.0",
+  "license": "ISC",
+  "description": "",
+  "keywords": [],
+  "homepage": "https://github.com/vatesfr/xen-orchestra/tree/master/packages/@xen-orchestra/log",
+  "bugs": "https://github.com/vatesfr/xen-orchestra/issues",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/vatesfr/xen-orchestra.git"
+  },
+  "author": {
+    "name": "Julien Fontanet",
+    "email": "julien.fontanet@vates.fr"
+  },
+  "preferGlobal": false,
+  "main": "dist/",
+  "bin": {},
+  "files": [
+    "dist/"
+  ],
+  "browserslist": [
+    ">2%"
+  ],
+  "engines": {
+    "node": ">=4"
+  },
+  "dependencies": {
+    "@babel/polyfill": "7.0.0-beta.42",
+    "lodash": "^4.17.4",
+    "promise-toolbox": "^0.9.5"
+  },
+  "devDependencies": {
+    "@babel/cli": "7.0.0-beta.42",
+    "@babel/core": "7.0.0-beta.42",
+    "@babel/preset-env": "7.0.0-beta.42",
+    "@babel/preset-flow": "7.0.0-beta.42",
+    "babel-plugin-lodash": "^3.3.2",
+    "cross-env": "^5.1.3",
+    "rimraf": "^2.6.2"
+  },
+  "scripts": {
+    "build": "cross-env NODE_ENV=production babel --source-maps --out-dir=dist/ src/",
+    "clean": "rimraf dist/",
+    "dev": "cross-env NODE_ENV=development babel --watch --source-maps --out-dir=dist/ src/",
+    "prebuild": "yarn run clean",
+    "predev": "yarn run prebuild",
+    "prepublishOnly": "yarn run build"
+  }
+}

@xen-orchestra/log/src/configure.js

@@ -0,0 +1,105 @@
+import createConsoleTransport from './transports/console'
+import LEVELS, { resolve } from './levels'
+import { compileGlobPattern } from './utils'
+
+// ===================================================================
+
+const createTransport = config => {
+  if (typeof config === 'function') {
+    return config
+  }
+
+  if (Array.isArray(config)) {
+    const transports = config.map(createTransport)
+    const { length } = transports
+    return function () {
+      for (let i = 0; i < length; ++i) {
+        transports[i].apply(this, arguments)
+      }
+    }
+  }
+
+  let { filter, transport } = config
+  const level = resolve(config.level)
+
+  if (filter !== undefined) {
+    if (typeof filter === 'string') {
+      const re = compileGlobPattern(filter)
+      filter = log => re.test(log.namespace)
+    }
+
+    const orig = transport
+    transport = function (log) {
+      if ((level !== undefined && log.level >= level) || filter(log)) {
+        return orig.apply(this, arguments)
+      }
+    }
+  } else if (level !== undefined) {
+    const orig = transport
+    transport = function (log) {
+      if (log.level >= level) {
+        return orig.apply(this, arguments)
+      }
+    }
+  }
+
+  return transport
+}
+
+let transport = createTransport({
+  // display warnings or above, and all that are enabled via DEBUG or
+  // NODE_DEBUG env
+  filter: process.env.DEBUG || process.env.NODE_DEBUG,
+  level: LEVELS.INFO,
+
+  transport: createConsoleTransport(),
+})
+
+const symbol =
+  typeof Symbol !== 'undefined'
+    ? Symbol.for('@xen-orchestra/log')
+    : '@@@xen-orchestra/log'
+global[symbol] = log => transport(log)
+
+export const configure = config => {
+  transport = createTransport(config)
+}
+
+// -------------------------------------------------------------------
+
+export const catchGlobalErrors = logger => {
+  // patch process
+  const onUncaughtException = error => {
+    logger.error('uncaught exception', { error })
+  }
+  const onUnhandledRejection = error => {
+    logger.warn('possibly unhandled rejection', { error })
+  }
+  const onWarning = error => {
+    logger.warn('Node warning', { error })
+  }
+  process.on('uncaughtException', onUncaughtException)
+  process.on('unhandledRejection', onUnhandledRejection)
+  process.on('warning', onWarning)
+
+  // patch EventEmitter
+  const EventEmitter = require('events')
+  const { prototype } = EventEmitter
+  const { emit } = prototype
+  function patchedEmit (event, error) {
+    event === 'error' && !this.listenerCount(event)
+      ? logger.error('unhandled error event', { error })
+      : emit.apply(this, arguments)
+  }
+  prototype.emit = patchedEmit
+
+  return () => {
+    process.removeListener('uncaughtException', onUncaughtException)
+    process.removeListener('unhandledRejection', onUnhandledRejection)
+    process.removeListener('warning', onWarning)
+
+    if (prototype.emit === patchedEmit) {
+      prototype.emit = emit
+    }
+  }
+}

@xen-orchestra/log/src/index.js

@@ -0,0 +1,65 @@
+import createTransport from './transports/console'
+import LEVELS from './levels'
+
+const symbol =
+  typeof Symbol !== 'undefined'
+    ? Symbol.for('@xen-orchestra/log')
+    : '@@@xen-orchestra/log'
+if (!(symbol in global)) {
+  // the default behavior, without requiring `configure` is to avoid
+  // logging anything unless it's a real error
+  const transport = createTransport()
+  global[symbol] = log => log.level > LEVELS.WARN && transport(log)
+}
+
+// -------------------------------------------------------------------
+
+function Log (data, level, namespace, message, time) {
+  this.data = data
+  this.level = level
+  this.namespace = namespace
+  this.message = message
+  this.time = time
+}
+
+function Logger (namespace) {
+  this._namespace = namespace
+
+  // bind all logging methods
+  for (const name in LEVELS) {
+    const lowerCase = name.toLowerCase()
+    this[lowerCase] = this[lowerCase].bind(this)
+  }
+}
+
+const { prototype } = Logger
+
+for (const name in LEVELS) {
+  const level = LEVELS[name]
+
+  prototype[name.toLowerCase()] = function (message, data) {
+    global[symbol](new Log(data, level, this._namespace, message, new Date()))
+  }
+}
+
+prototype.wrap = function (message, fn) {
+  const logger = this
+  const warnAndRethrow = error => {
+    logger.warn(message, { error })
+    throw error
+  }
+  return function () {
+    try {
+      const result = fn.apply(this, arguments)
+      const then = result != null && result.then
+      return typeof then === 'function'
+        ? then.call(result, warnAndRethrow)
+        : result
+    } catch (error) {
+      warnAndRethrow(error)
+    }
+  }
+}
+
+const createLogger = namespace => new Logger(namespace)
+export { createLogger }

@xen-orchestra/log/src/levels.js

@@ -0,0 +1,24 @@
+const LEVELS = Object.create(null)
+export { LEVELS as default }
+
+// https://github.com/trentm/node-bunyan#levels
+LEVELS.FATAL = 60 // service/app is going to down
+LEVELS.ERROR = 50 // fatal for current action
+LEVELS.WARN = 40 // something went wrong but it's not fatal
+LEVELS.INFO = 30 // detail on unusual but normal operation
+LEVELS.DEBUG = 20
+
+export const NAMES = Object.create(null)
+for (const name in LEVELS) {
+  NAMES[LEVELS[name]] = name
+}
+
+export const resolve = level => {
+  if (typeof level === 'string') {
+    level = LEVELS[level.toUpperCase()]
+  }
+  return level
+}
+
+Object.freeze(LEVELS)
+Object.freeze(NAMES)

@xen-orchestra/log/src/levels.spec.js

@@ -0,0 +1,32 @@
+/* eslint-env jest */
+
+import { forEach, isInteger } from 'lodash'
+
+import LEVELS, { NAMES, resolve } from './levels'
+
+describe('LEVELS', () => {
+  it('maps level names to their integer values', () => {
+    forEach(LEVELS, (value, name) => {
+      expect(isInteger(value)).toBe(true)
+    })
+  })
+})
+
+describe('NAMES', () => {
+  it('maps level values to their names', () => {
+    forEach(LEVELS, (value, name) => {
+      expect(NAMES[value]).toBe(name)
+    })
+  })
+})
+
+describe('resolve()', () => {
+  it('returns level values either from values or names', () => {
+    forEach(LEVELS, value => {
+      expect(resolve(value)).toBe(value)
+    })
+    forEach(NAMES, (name, value) => {
+      expect(resolve(name)).toBe(+value)
+    })
+  })
+})

@xen-orchestra/log/src/transports/console.js

@@ -0,0 +1,20 @@
+import LEVELS, { NAMES } from '../levels'
+
+// Bind console methods (necessary for browsers)
+const debugConsole = console.log.bind(console)
+const infoConsole = console.info.bind(console)
+const warnConsole = console.warn.bind(console)
+const errorConsole = console.error.bind(console)
+
+const { ERROR, INFO, WARN } = LEVELS
+
+const consoleTransport = ({ data, level, namespace, message, time }) => {
+  const fn =
+    level < INFO
+      ? debugConsole
+      : level < WARN ? infoConsole : level < ERROR ? warnConsole : errorConsole
+
+  fn('%s - %s - [%s] %s', time.toISOString(), namespace, NAMES[level], message)
+  data != null && fn(data)
+}
+export default () => consoleTransport

@xen-orchestra/log/src/transports/email.js

@@ -0,0 +1,68 @@
+import prettyFormat from 'pretty-format' // eslint-disable-line node/no-extraneous-import
+import { createTransport } from 'nodemailer' // eslint-disable-line node/no-extraneous-import
+import { fromCallback } from 'promise-toolbox'
+
+import { evalTemplate, required } from '../utils'
+import { NAMES } from '../levels'
+
+export default ({
+  // transport options (https://nodemailer.com/smtp/)
+  auth,
+  authMethod,
+  host,
+  ignoreTLS,
+  port,
+  proxy,
+  requireTLS,
+  secure,
+  service,
+  tls,
+
+  // message options (https://nodemailer.com/message/)
+  bcc,
+  cc,
+  from = required('from'),
+  to = required('to'),
+  subject = '[{{level}} - {{namespace}}] {{time}} {{message}}',
+}) => {
+  const transporter = createTransport(
+    {
+      auth,
+      authMethod,
+      host,
+      ignoreTLS,
+      port,
+      proxy,
+      requireTLS,
+      secure,
+      service,
+      tls,
+
+      disableFileAccess: true,
+      disableUrlAccess: true,
+    },
+    {
+      bcc,
+      cc,
+      from,
+      to,
+    }
+  )
+
+  return log =>
+    fromCallback(cb =>
+      transporter.sendMail(
+        {
+          subject: evalTemplate(
+            subject,
+            key =>
+              key === 'level'
+                ? NAMES[log.level]
+                : key === 'time' ? log.time.toISOString() : log[key]
+          ),
+          text: prettyFormat(log.data),
+        },
+        cb
+      )
+    )
+}

@xen-orchestra/log/src/transports/syslog.js

@@ -0,0 +1,42 @@
+import splitHost from 'split-host' // eslint-disable-line node/no-extraneous-import node/no-missing-import
+import { createClient, Facility, Severity, Transport } from 'syslog-client' // eslint-disable-line node/no-extraneous-import node/no-missing-import
+import { fromCallback } from 'promise-toolbox'
+import { startsWith } from 'lodash'
+
+import LEVELS from '../levels'
+
+// https://github.com/paulgrove/node-syslog-client#syslogseverity
+const LEVEL_TO_SEVERITY = {
+  [LEVELS.FATAL]: Severity.Critical,
+  [LEVELS.ERROR]: Severity.Error,
+  [LEVELS.WARN]: Severity.Warning,
+  [LEVELS.INFO]: Severity.Informational,
+  [LEVELS.DEBUG]: Severity.Debug,
+}
+
+const facility = Facility.User
+
+export default target => {
+  const opts = {}
+  if (target !== undefined) {
+    if (startsWith(target, 'tcp://')) {
+      target = target.slice(6)
+      opts.transport = Transport.Tcp
+    } else if (startsWith(target, 'udp://')) {
+      target = target.slice(6)
+      opts.transport = Transport.Ucp
+    }
+
+    ;({ host: target, port: opts.port } = splitHost(target))
+  }
+
+  const client = createClient(target, opts)
+
+  return log =>
+    fromCallback(cb =>
+      client.log(log.message, {
+        facility,
+        severity: LEVEL_TO_SEVERITY[log.level],
+      })
+    )
+}

@xen-orchestra/log/src/utils.js

@@ -0,0 +1,62 @@
+import escapeRegExp from 'lodash/escapeRegExp'
+
+// ===================================================================
+
+const TPL_RE = /\{\{(.+?)\}\}/g
+export const evalTemplate = (tpl, data) => {
+  const getData =
+    typeof data === 'function' ? (_, key) => data(key) : (_, key) => data[key]
+
+  return tpl.replace(TPL_RE, getData)
+}
+
+// -------------------------------------------------------------------
+
+const compileGlobPatternFragment = pattern =>
+  pattern
+    .split('*')
+    .map(escapeRegExp)
+    .join('.*')
+
+export const compileGlobPattern = pattern => {
+  const no = []
+  const yes = []
+  pattern.split(/[\s,]+/).forEach(pattern => {
+    if (pattern[0] === '-') {
+      no.push(pattern.slice(1))
+    } else {
+      yes.push(pattern)
+    }
+  })
+
+  const raw = ['^']
+
+  if (no.length !== 0) {
+    raw.push('(?!', no.map(compileGlobPatternFragment).join('|'), ')')
+  }
+
+  if (yes.length !== 0) {
+    raw.push('(?:', yes.map(compileGlobPatternFragment).join('|'), ')')
+  } else {
+    raw.push('.*')
+  }
+
+  raw.push('$')
+
+  return new RegExp(raw.join(''))
+}
+
+// -------------------------------------------------------------------
+
+export const required = name => {
+  throw new Error(`missing required arg ${name}`)
+}
+
+// -------------------------------------------------------------------
+
+export const serializeError = error => ({
+  ...error,
+  message: error.message,
+  name: error.name,
+  stack: error.stack,
+})

@xen-orchestra/log/src/utils.spec.js

@@ -0,0 +1,13 @@
+/* eslint-env jest */
+
+import { compileGlobPattern } from './utils'
+
+describe('compileGlobPattern()', () => {
+  it('works', () => {
+    const re = compileGlobPattern('foo, ba*, -bar')
+    expect(re.test('foo')).toBe(true)
+    expect(re.test('bar')).toBe(false)
+    expect(re.test('baz')).toBe(true)
+    expect(re.test('qux')).toBe(false)
+  })
+})

@xen-orchestra/log/transports

@@ -0,0 +1 @@
+dist/transports

CHANGELOG.md

@@ -1,9 +1,104 @@
 # ChangeLog
 
+## **5.20.0** (planned 2018-05-31)
+
+### Enhancements
+
+- Add VDI UUID in SR coalesce view [#2903](https://github.com/vatesfr/xen-orchestra/issues/2903)
+- Create new VDI from SR view not attached to any VM [#2229](https://github.com/vatesfr/xen-orchestra/issues/2229)
+- [Patches] ignore XS upgrade in missing patches counter [#2866](https://github.com/vatesfr/xen-orchestra/issues/2866)
+- [Health] List VM snapshots related to non-existing backup jobs/schedules [#2828](https://github.com/vatesfr/xen-orchestra/issues/2828)
+
+### Bugs
+
+## **5.19.0** (2018-05-01)
+
+### Enhancements
+
+- Expose vendor device in VM advanced tab [#2883](https://github.com/vatesfr/xen-orchestra/issues/2883)
+- Networks created in XO are missing the "automatic" parameter [#2818](https://github.com/vatesfr/xen-orchestra/issues/2818)
+- Performance alert disk space monitoring XS [#2737](https://github.com/vatesfr/xen-orchestra/issues/2737)
+- Add ability to create NFSv4 storage repository [#2706](https://github.com/vatesfr/xen-orchestra/issues/2706)
+- [SortedTable] Support link actions [#2691](https://github.com/vatesfr/xen-orchestra/issues/2691)
+- Additional sort option: by host name [#2680](https://github.com/vatesfr/xen-orchestra/issues/2680)
+- Expose XenTools version numbers in data model and UI [#2650](https://github.com/vatesfr/xen-orchestra/issues/2650)
+- RRDs stats for SR object [#2644](https://github.com/vatesfr/xen-orchestra/issues/2644)
+- composite jobs [#2367](https://github.com/vatesfr/xen-orchestra/issues/2367)
+- Better error message [#2344](https://github.com/vatesfr/xen-orchestra/issues/2344)
+- Avoid using backup tag with special characters [#2336](https://github.com/vatesfr/xen-orchestra/issues/2336)
+- Prefix/suffix for temporary files [#2333](https://github.com/vatesfr/xen-orchestra/issues/2333)
+- Continuous Replication - better interface matching on destination [#2093](https://github.com/vatesfr/xen-orchestra/issues/2093)
+- Creation of LVMoHBA SRs [#1992](https://github.com/vatesfr/xen-orchestra/issues/1992)
+- [Delta backup] Improve restoration by creating a virtual full VHD [#1943](https://github.com/vatesfr/xen-orchestra/issues/1943)
+- VM Backups should be done in a dedicated remote directory [#1752](https://github.com/vatesfr/xen-orchestra/issues/1752)
+- Add Pool / SR filter in backup view [#1762](https://github.com/vatesfr/xen-orchestra/issues/1762)
+- Hide/Disable upgrade button when no upgrade exists [#1594](https://github.com/vatesfr/xen-orchestra/issues/1594)
+- "Upgrade" button should display "Downgrade" when trial is over [#1483](https://github.com/vatesfr/xen-orchestra/issues/1483)
+
+### Bugs
+
+- Allowed-ips don't works displaying index.js:1 Uncaught TypeError: (0 , z.isIp) is not a function [#2891](https://github.com/vatesfr/xen-orchestra/issues/2891)
+- Error on "usage-report" [#2876](https://github.com/vatesfr/xen-orchestra/issues/2876)
+- SR selection combo only listing local storage [#2875](https://github.com/vatesfr/xen-orchestra/issues/2875)
+- [Backup NG - Delta] Issue while importing delta [#2857](https://github.com/vatesfr/xen-orchestra/issues/2857)
+- Create New SR page broken with past commit [#2853](https://github.com/vatesfr/xen-orchestra/issues/2853)
+- [Backup NG] a target should only be preset once [#2848](https://github.com/vatesfr/xen-orchestra/issues/2848)
+- Auth Method iSCSI [#2835](https://github.com/vatesfr/xen-orchestra/issues/2835)
+- [Backup NG] ENOENT with Delta Backup [#2833](https://github.com/vatesfr/xen-orchestra/issues/2833)
+- Different backup logs [#2732](https://github.com/vatesfr/xen-orchestra/issues/2732)
+- Creating network fails silently when omitting Description [#2719](https://github.com/vatesfr/xen-orchestra/issues/2719)
+- Can't create ISO NFS SR via XOA [#1845](https://github.com/vatesfr/xen-orchestra/issues/1845)
+
+## **5.18.0** (2018-03-31)
+
+### Enhancements
+
+- Support huge VHDs [#2785](https://github.com/vatesfr/xen-orchestra/issues/2785)
+- Usage report extended usage [#2770](https://github.com/vatesfr/xen-orchestra/issues/2770)
+- Improve host available RAM display [#2750](https://github.com/vatesfr/xen-orchestra/issues/2750)
+- Hide IP field during VM creation if not configured [#2739](https://github.com/vatesfr/xen-orchestra/issues/2739)
+- [Home] Delete VMs modal should autofocus the input field [#2736](https://github.com/vatesfr/xen-orchestra/issues/2736)
+- Backup restore view load icon [#2692](https://github.com/vatesfr/xen-orchestra/issues/2692)
+- Deleting default templates doesn't work [#2666](https://github.com/vatesfr/xen-orchestra/issues/2666)
+- DR clean previous "failed" snapshots [#2656](https://github.com/vatesfr/xen-orchestra/issues/2656)
+- [Home] Put sort criteria in URL like the filter [#2585](https://github.com/vatesfr/xen-orchestra/issues/2585)
+- Allow disconnect VDI in SR disk view [#2505](https://github.com/vatesfr/xen-orchestra/issues/2505)
+- Add confirmation modal for manual backup run [#2355](https://github.com/vatesfr/xen-orchestra/issues/2355)
+- Multiple schedule for backup jobs [#2286](https://github.com/vatesfr/xen-orchestra/issues/2286)
+- Checks before web update [#2250](https://github.com/vatesfr/xen-orchestra/issues/2250)
+- Backup logs should truly reflect if the job is running [#2206](https://github.com/vatesfr/xen-orchestra/issues/2206)
+- Hook/action if an export stream is cut [#1929](https://github.com/vatesfr/xen-orchestra/issues/1929)
+- Backup paths should not contain tags but job ids [#1854](https://github.com/vatesfr/xen-orchestra/issues/1854)
+- Add a button to delete a backup [#1751](https://github.com/vatesfr/xen-orchestra/issues/1751)
+- Dashboard available for Pool and Host level  [#1631](https://github.com/vatesfr/xen-orchestra/issues/1631)
+- UI Enhancement - VM list - Allways show the Toolbar  [#1581](https://github.com/vatesfr/xen-orchestra/issues/1581)
+- xoa-updater --register:  unable to define proxy using the CLI [#873](https://github.com/vatesfr/xen-orchestra/issues/873)
+
+
+### Bugs
+
+- [Backup NG] CR/DR fail with multiple VMs [#2807](https://github.com/vatesfr/xen-orchestra/issues/2807)
+- HTTPS Crash [#2803](https://github.com/vatesfr/xen-orchestra/issues/2803)
+- Backup NG "cannot fork the stream after it has been created" [#2790](https://github.com/vatesfr/xen-orchestra/issues/2790)
+- [XOSAN] Make temporary `boundObjectId` unique [#2758](https://github.com/vatesfr/xen-orchestra/issues/2758)
+- First VIF ignored at VM creation [#2794](https://github.com/vatesfr/xen-orchestra/issues/2794)
+- VM creation from snapshot does not work [#2748](https://github.com/vatesfr/xen-orchestra/issues/2748)
+- Error: no such object with CentOS 7 template [#2747](https://github.com/vatesfr/xen-orchestra/issues/2747)
+- [Tasks] Filter does not work [#2740](https://github.com/vatesfr/xen-orchestra/issues/2740)
+- Pagination broken when listing pool VMs [#2730](https://github.com/vatesfr/xen-orchestra/issues/2730)
+- All jobs show error icon with message "This backup's creator no longer exists" [#2728](https://github.com/vatesfr/xen-orchestra/issues/2728)
+- [Basic backup] Continous Replication VM names [#2727](https://github.com/vatesfr/xen-orchestra/issues/2727)
+- Continuous replication clone removed [#2724](https://github.com/vatesfr/xen-orchestra/issues/2724)
+- [Backup] "See matching VMs" issue [#2704](https://github.com/vatesfr/xen-orchestra/issues/2704)
+- How to exclude CR targets from a smart backup using tags? [#2613](https://github.com/vatesfr/xen-orchestra/issues/2613)
+- Successful VM import reported as failed [#2056](https://github.com/vatesfr/xen-orchestra/issues/2056)
+- Delta backup: issue if a disk is once again backed up [#1824](https://github.com/vatesfr/xen-orchestra/issues/1824)
+
 ## **5.17.0** (2018-03-02)
 
 ### Enhancements
 
+- Username field labeled inconsistently [#2651](https://github.com/vatesfr/xen-orchestra/issues/2651)
 - Add modal confirmation for host emergency mode [#2230](https://github.com/vatesfr/xen-orchestra/issues/2230)
 - Authorize stats fetching in RO mode [#2678](https://github.com/vatesfr/xen-orchestra/issues/2678)
 - Limit VM.export concurrency [#2669](https://github.com/vatesfr/xen-orchestra/issues/2669)
@@ -22,6 +117,9 @@
 - Cant attach XenTools on User side.  [#2503](https://github.com/vatesfr/xen-orchestra/issues/2503)
 - Pool filter for health view [#2302](https://github.com/vatesfr/xen-orchestra/issues/2302)
 - [Smart Backup] Improve feedback [#2253](https://github.com/vatesfr/xen-orchestra/issues/2253)
+- Backup jobs stuck if no space left on NFS remote [#2116](https://github.com/vatesfr/xen-orchestra/issues/2116)
+- Link between backup and XS tasks [#1193](https://github.com/vatesfr/xen-orchestra/issues/1193)
+- Move delta backup grouping to server side [#1008](https://github.com/vatesfr/xen-orchestra/issues/1008)
 
 ### Bugs
 
@@ -41,6 +139,7 @@
 - Self-service: allow VIF create [#2593](https://github.com/vatesfr/xen-orchestra/issues/2593)
 - Ghost tasks [#2579](https://github.com/vatesfr/xen-orchestra/issues/2579)
 - Autopatching: ignore 7.3 update patch for 7.2 [#2564](https://github.com/vatesfr/xen-orchestra/issues/2564)
+- Better Handling of suspending VMs from the Home screen [#2547](https://github.com/vatesfr/xen-orchestra/issues/2547)
 - Allow deleting VMs for which `destroy` is blocked [#2525](https://github.com/vatesfr/xen-orchestra/issues/2525)
 - Better confirmation on mass destructive actions [#2522](https://github.com/vatesfr/xen-orchestra/issues/2522)
 - Move VM In to/Out of Self Service Group [#1913](https://github.com/vatesfr/xen-orchestra/issues/1913)
@@ -50,6 +149,8 @@
 - Remove CoffeeScript in xo-server [#189](https://github.com/vatesfr/xen-orchestra/issues/189)
 - Better Handling of suspending VMs from the Home screen [#2547](https://github.com/vatesfr/xen-orchestra/issues/2547)
 - [xen-api] Stronger reconnection policy [#2410](https://github.com/vatesfr/xen-orchestra/issues/2410)
+- home view - allow selecting more than 25 items [#1210](https://github.com/vatesfr/xen-orchestra/issues/1210)
+- Performances alerts [#511](https://github.com/vatesfr/xen-orchestra/issues/511)
 
 ### Bugs
 
@@ -79,6 +180,7 @@
 - Graphs in VM list view [#2469](https://github.com/vatesfr/xen-orchestra/issues/2469)
 - [Delta Backups] Do not include merge duration in transfer speed stat [#2426](https://github.com/vatesfr/xen-orchestra/issues/2426)
 - Warning for disperse mode [#2537](https://github.com/vatesfr/xen-orchestra/issues/2537)
+- Select components: auto select value if only 1 choice possible [#1479](https://github.com/vatesfr/xen-orchestra/issues/1479)
 
 ### Bugs
 

flow-typed/lodash.js

@@ -1,4 +1,12 @@
 declare module 'lodash' {
+  declare export function forEach<K, V>(
+    object: { [K]: V },
+    iteratee: (V, K) => void
+  ): void
+  declare export function groupBy<K, V>(
+    object: { [K]: V },
+    iteratee: K | ((V, K) => string)
+  ): { [string]: V[] }
   declare export function invert<K, V>(object: { [K]: V }): { [V]: K }
   declare export function isEmpty(mixed): boolean
   declare export function keyBy<T>(array: T[], iteratee: string): boolean

flow-typed/promise-toolbox.js

@@ -3,8 +3,11 @@ declare module 'promise-toolbox' {
   declare export function defer<T>(): {|
     promise: Promise<T>,
     reject: T => void,
-    resolve: T => void
+    resolve: T => void,
   |}
+  declare export function fromCallback<T>(
+    (cb: (error: any, value: T) => void) => void
+  ): Promise<T>
   declare export function fromEvent(emitter: mixed, string): Promise<mixed>
   declare export function ignoreErrors(): Promise<void>
   declare export function timeout<T>(delay: number): Promise<T>

package.json

@@ -1,6 +1,6 @@
 {
   "devDependencies": {
-    "@babel/register": "^7.0.0-beta.40",
+    "@babel/register": "^7.0.0-beta.44",
     "babel-7-jest": "^21.3.2",
     "babel-eslint": "^8.1.2",
     "benchmark": "^2.1.4",
@@ -13,7 +13,7 @@
     "eslint-plugin-react": "^7.6.1",
     "eslint-plugin-standard": "^3.0.1",
     "exec-promise": "^0.7.0",
-    "flow-bin": "^0.67.1",
+    "flow-bin": "^0.69.0",
     "globby": "^8.0.0",
     "husky": "^0.14.3",
     "jest": "^22.0.4",
@@ -34,16 +34,18 @@
     "testEnvironment": "node",
     "testPathIgnorePatterns": [
       "/dist/",
-      "/xo-vmdk-to-vhd/",
       "/xo-web/"
     ],
     "testRegex": "\\.spec\\.js$",
     "transform": {
       "/@xen-orchestra/cron/.+\\.jsx?$": "babel-7-jest",
+      "/@xen-orchestra/fs/.+\\.jsx?$": "babel-7-jest",
       "/packages/complex-matcher/.+\\.jsx?$": "babel-7-jest",
       "/packages/value-matcher/.+\\.jsx?$": "babel-7-jest",
+      "/packages/vhd-lib/.+\\.jsx?$": "babel-7-jest",
       "/packages/xo-cli/.+\\.jsx?$": "babel-7-jest",
       "/packages/xo-server/.+\\.jsx?$": "babel-7-jest",
+      "/packages/xo-vmdk-to-vhd/.+\\.jsx?$": "babel-7-jest",
       "\\.jsx?$": "babel-jest"
     }
   },
@@ -52,12 +54,13 @@
     "build": "scripts/run-script --parallel build",
     "clean": "scripts/run-script --parallel clean",
     "dev": "scripts/run-script --parallel dev",
-    "dev-test": "jest --bail --watch",
+    "dev-test": "jest --bail --watch \"^(?!.*\\.integ\\.spec\\.js$)\"",
     "posttest": "scripts/run-script test",
     "precommit": "scripts/lint-staged",
     "prepare": "scripts/run-script prepare",
     "pretest": "eslint --ignore-path .gitignore .",
-    "test": "jest"
+    "test": "jest \"^(?!.*\\.integ\\.spec\\.js$)\"",
+    "test-integration": "jest \".integ\\.spec\\.js$\""
   },
   "workspaces": [
     "@xen-orchestra/*",

packages/complex-matcher/package.json

@@ -30,9 +30,9 @@
     "lodash": "^4.17.4"
   },
   "devDependencies": {
-    "@babel/cli": "7.0.0-beta.40",
-    "@babel/core": "7.0.0-beta.40",
-    "@babel/preset-env": "7.0.0-beta.40",
+    "@babel/cli": "7.0.0-beta.44",
+    "@babel/core": "7.0.0-beta.44",
+    "@babel/preset-env": "7.0.0-beta.44",
     "babel-plugin-lodash": "^3.3.2",
     "cross-env": "^5.1.1",
     "rimraf": "^2.6.2"

packages/value-matcher/package.json

@@ -28,10 +28,10 @@
   },
   "dependencies": {},
   "devDependencies": {
-    "@babel/cli": "7.0.0-beta.40",
-    "@babel/core": "7.0.0-beta.40",
-    "@babel/preset-env": "7.0.0-beta.40",
-    "@babel/preset-flow": "7.0.0-beta.40",
+    "@babel/cli": "7.0.0-beta.44",
+    "@babel/core": "7.0.0-beta.44",
+    "@babel/preset-env": "7.0.0-beta.44",
+    "@babel/preset-flow": "7.0.0-beta.44",
     "cross-env": "^5.1.3",
     "rimraf": "^2.6.2"
   },

packages/vhd-cli/package.json

@@ -1,6 +1,6 @@
 {
   "name": "vhd-cli",
-  "version": "0.0.0",
+  "version": "0.0.1",
   "license": "ISC",
   "description": "",
   "keywords": [],
@@ -26,10 +26,11 @@
     "node": ">=4"
   },
   "dependencies": {
-    "@nraynaud/struct-fu": "^1.0.1",
-    "@nraynaud/xo-fs": "^0.0.5",
+    "@xen-orchestra/fs": "^0.0.0",
     "babel-runtime": "^6.22.0",
-    "exec-promise": "^0.7.0"
+    "exec-promise": "^0.7.0",
+    "struct-fu": "^1.2.0",
+    "vhd-lib": "^0.0.0"
   },
   "devDependencies": {
     "babel-cli": "^6.24.1",
@@ -38,14 +39,18 @@
     "babel-preset-env": "^1.5.2",
     "babel-preset-stage-3": "^6.24.1",
     "cross-env": "^5.1.3",
-    "rimraf": "^2.6.1"
+    "execa": "^0.10.0",
+    "index-modules": "^0.3.0",
+    "promise-toolbox": "^0.9.5",
+    "rimraf": "^2.6.1",
+    "tmp": "^0.0.33"
   },
   "scripts": {
     "build": "cross-env NODE_ENV=production babel --source-maps --out-dir=dist/ src/",
     "dev": "cross-env NODE_ENV=development babel --watch --source-maps --out-dir=dist/ src/",
-    "prebuild": "rimraf dist/",
+    "prebuild": "rimraf dist/ && index-modules --cjs-lazy src/commands",
     "predev": "yarn run prebuild",
-    "prepublishOnly": "yarn run build"
+    "prepare": "yarn run build"
   },
   "babel": {
     "plugins": [

packages/vhd-cli/src/commands/check.js

@@ -0,0 +1,15 @@
+import Vhd from 'vhd-lib'
+import { getHandler } from '@xen-orchestra/fs'
+import { resolve } from 'path'
+
+export default async args => {
+  const handler = getHandler({ url: 'file:///' })
+  for (const vhd of args) {
+    try {
+      await new Vhd(handler, resolve(vhd)).readHeaderAndFooter()
+      console.log('ok:', vhd)
+    } catch (error) {
+      console.error('nok:', vhd, error)
+    }
+  }
+}

packages/vhd-cli/src/commands/info.js

@@ -0,0 +1,12 @@
+import Vhd from 'vhd-lib'
+import { getHandler } from '@xen-orchestra/fs'
+import { resolve } from 'path'
+
+export default async args => {
+  const vhd = new Vhd(getHandler({ url: 'file:///' }), resolve(args[0]))
+
+  await vhd.readHeaderAndFooter()
+
+  console.log(vhd.header)
+  console.log(vhd.footer)
+}

packages/vhd-cli/src/commands/synthetize.js

@@ -0,0 +1,21 @@
+import path from 'path'
+import { createSyntheticStream } from 'vhd-lib'
+import { createWriteStream } from 'fs'
+import { getHandler } from '@xen-orchestra/fs'
+
+export default async function main (args) {
+  if (args.length < 2 || args.some(_ => _ === '-h' || _ === '--help')) {
+    return `Usage: ${this.command} <input VHD> <output VHD>`
+  }
+
+  const handler = getHandler({ url: 'file:///' })
+  return new Promise((resolve, reject) => {
+    createSyntheticStream(handler, path.resolve(args[0]))
+      .on('error', reject)
+      .pipe(
+        createWriteStream(args[1])
+          .on('error', reject)
+          .on('finish', resolve)
+      )
+  })
+}

packages/vhd-cli/src/index.js

@@ -1,19 +1,44 @@
 #!/usr/bin/env node
 
 import execPromise from 'exec-promise'
-import { RemoteHandlerLocal } from '@nraynaud/xo-fs'
-import { resolve } from 'path'
 
-import Vhd from './vhd'
+import commands from './commands'
 
-execPromise(async args => {
-  const vhd = new Vhd(
-    new RemoteHandlerLocal({ url: 'file:///' }),
-    resolve(args[0])
+function runCommand (commands, [command, ...args]) {
+  if (command === undefined || command === '-h' || command === '--help') {
+    command = 'help'
+  }
+
+  const fn = commands[command]
+
+  if (fn === undefined) {
+    if (command === 'help') {
+      return `Usage:
+
+${Object.keys(commands)
+        .filter(command => command !== 'help')
+        .map(command => `    ${this.command} ${command}`)
+        .join('\n\n')}`
+    }
+
+    throw `invalid command ${command}` // eslint-disable-line no-throw-literal
+  }
+
+  return fn.call(
+    {
+      __proto__: this,
+      command: `${this.command} ${command}`,
+    },
+    args
   )
+}
 
-  await vhd.readHeaderAndFooter()
-
-  console.log(vhd._header)
-  console.log(vhd._footer)
-})
+execPromise(
+  runCommand.bind(
+    {
+      command: 'vhd-cli',
+      runCommand,
+    },
+    commands
+  )
+)

packages/vhd-cli/src/info.integ.spec.js

@@ -0,0 +1,28 @@
+/* eslint-env jest */
+
+import execa from 'execa'
+import rimraf from 'rimraf'
+import tmp from 'tmp'
+import { fromCallback as pFromCallback } from 'promise-toolbox'
+
+import command from './commands/info'
+
+const initialDir = process.cwd()
+
+jest.setTimeout(10000)
+
+beforeEach(async () => {
+  const dir = await pFromCallback(cb => tmp.dir(cb))
+  process.chdir(dir)
+})
+
+afterEach(async () => {
+  const tmpDir = process.cwd()
+  process.chdir(initialDir)
+  await pFromCallback(cb => rimraf(tmpDir, cb))
+})
+
+test('can run the command', async () => {
+  await execa('qemu-img', ['create', '-fvpc', 'empty.vhd', '1G'])
+  await command(['empty.vhd'])
+})

packages/vhd-cli/src/vhd.js

@@ -1,461 +0,0 @@
-import assert from 'assert'
-import fu from '@nraynaud/struct-fu'
-import { dirname } from 'path'
-
-// ===================================================================
-//
-// Spec:
-// https://www.microsoft.com/en-us/download/details.aspx?id=23850
-//
-// C implementation:
-// https://github.com/rubiojr/vhd-util-convert
-//
-// ===================================================================
-
-/* eslint-disable no-unused-vars */
-
-const HARD_DISK_TYPE_DIFFERENCING = 4
-const HARD_DISK_TYPE_DYNAMIC = 3
-const HARD_DISK_TYPE_FIXED = 2
-const PLATFORM_CODE_NONE = 0
-export const SECTOR_SIZE = 512
-
-/* eslint-enable no-unused vars */
-
-// ===================================================================
-
-const fuFooter = fu.struct([
-  fu.char('cookie', 8), // 0
-  fu.uint32('features'), // 8
-  fu.uint32('fileFormatVersion'), // 12
-  fu.struct('dataOffset', [
-    fu.uint32('high'), // 16
-    fu.uint32('low'), // 20
-  ]),
-  fu.uint32('timestamp'), // 24
-  fu.char('creatorApplication', 4), // 28
-  fu.uint32('creatorVersion'), // 32
-  fu.uint32('creatorHostOs'), // 36
-  fu.struct('originalSize', [
-    // At the creation, current size of the hard disk.
-    fu.uint32('high'), // 40
-    fu.uint32('low'), // 44
-  ]),
-  fu.struct('currentSize', [
-    // Current size of the virtual disk. At the creation: currentSize = originalSize.
-    fu.uint32('high'), // 48
-    fu.uint32('low'), // 52
-  ]),
-  fu.struct('diskGeometry', [
-    fu.uint16('cylinders'), // 56
-    fu.uint8('heads'), // 58
-    fu.uint8('sectorsPerTrackCylinder'), // 59
-  ]),
-  fu.uint32('diskType'), // 60 Disk type, must be equal to HARD_DISK_TYPE_DYNAMIC/HARD_DISK_TYPE_DIFFERENCING.
-  fu.uint32('checksum'), // 64
-  fu.uint8('uuid', 16), // 68
-  fu.char('saved'), // 84
-  fu.char('hidden'), // 85
-  fu.byte('reserved', 426), // 86
-])
-const FOOTER_SIZE = fuFooter.size
-
-const fuHeader = fu.struct([
-  fu.char('cookie', 8),
-  fu.struct('dataOffset', [fu.uint32('high'), fu.uint32('low')]),
-  fu.struct('tableOffset', [
-    // Absolute byte offset of the Block Allocation Table.
-    fu.uint32('high'),
-    fu.uint32('low'),
-  ]),
-  fu.uint32('headerVersion'),
-  fu.uint32('maxTableEntries'), // Max entries in the Block Allocation Table.
-  fu.uint32('blockSize'), // Block size (without bitmap) in bytes.
-  fu.uint32('checksum'),
-  fu.uint8('parentUuid', 16),
-  fu.uint32('parentTimestamp'),
-  fu.byte('reserved1', 4),
-  fu.char16be('parentUnicodeName', 512),
-  fu.struct(
-    'parentLocatorEntry',
-    [
-      fu.uint32('platformCode'),
-      fu.uint32('platformDataSpace'),
-      fu.uint32('platformDataLength'),
-      fu.uint32('reserved'),
-      fu.struct('platformDataOffset', [
-        // Absolute byte offset of the locator data.
-        fu.uint32('high'),
-        fu.uint32('low'),
-      ]),
-    ],
-    8
-  ),
-  fu.byte('reserved2', 256),
-])
-const HEADER_SIZE = fuHeader.size
-
-// ===================================================================
-// Helpers
-// ===================================================================
-
-const SIZE_OF_32_BITS = Math.pow(2, 32)
-const uint32ToUint64 = fu => fu.high * SIZE_OF_32_BITS + fu.low
-
-// Returns a 32 bits integer corresponding to a Vhd version.
-const getVhdVersion = (major, minor) => (major << 16) | (minor & 0x0000ffff)
-
-// bytes[] bit manipulation
-const testBit = (map, bit) => map[bit >> 3] & (1 << (bit & 7))
-const setBit = (map, bit) => {
-  map[bit >> 3] |= 1 << (bit & 7)
-}
-const unsetBit = (map, bit) => {
-  map[bit >> 3] &= ~(1 << (bit & 7))
-}
-
-const addOffsets = (...offsets) =>
-  offsets.reduce(
-    (a, b) =>
-      b == null
-        ? a
-        : typeof b === 'object'
-          ? { bytes: a.bytes + b.bytes, bits: a.bits + b.bits }
-          : { bytes: a.bytes + b, bits: a.bits },
-    { bytes: 0, bits: 0 }
-  )
-
-const pack = (field, value, buf, offset) => {
-  field.pack(value, buf, addOffsets(field.offset, offset))
-}
-
-const unpack = (field, buf, offset) =>
-  field.unpack(buf, addOffsets(field.offset, offset))
-
-// ===================================================================
-
-const streamToNewBuffer = stream =>
-  new Promise((resolve, reject) => {
-    const chunks = []
-    let length = 0
-
-    const onData = chunk => {
-      chunks.push(chunk)
-      length += chunk.length
-    }
-    stream.on('data', onData)
-
-    const clean = () => {
-      stream.removeListener('data', onData)
-      stream.removeListener('end', onEnd)
-      stream.removeListener('error', onError)
-    }
-    const onEnd = () => {
-      resolve(Buffer.concat(chunks, length))
-      clean()
-    }
-    stream.on('end', onEnd)
-    const onError = error => {
-      reject(error)
-      clean()
-    }
-    stream.on('error', onError)
-  })
-
-const streamToExistingBuffer = (
-  stream,
-  buffer,
-  offset = 0,
-  end = buffer.length
-) =>
-  new Promise((resolve, reject) => {
-    assert(offset >= 0)
-    assert(end > offset)
-    assert(end <= buffer.length)
-
-    let i = offset
-
-    const onData = chunk => {
-      const prev = i
-      i += chunk.length
-
-      if (i > end) {
-        return onError(new Error('too much data'))
-      }
-
-      chunk.copy(buffer, prev)
-    }
-    stream.on('data', onData)
-
-    const clean = () => {
-      stream.removeListener('data', onData)
-      stream.removeListener('end', onEnd)
-      stream.removeListener('error', onError)
-    }
-    const onEnd = () => {
-      resolve(i - offset)
-      clean()
-    }
-    stream.on('end', onEnd)
-    const onError = error => {
-      reject(error)
-      clean()
-    }
-    stream.on('error', onError)
-  })
-
-// ===================================================================
-
-// Returns the checksum of a raw struct.
-const computeChecksum = (struct, buf, offset = 0) => {
-  let sum = 0
-
-  // Do not use the stored checksum to compute the new checksum.
-  const checksumField = struct.fields.checksum
-  const checksumOffset = offset + checksumField.offset
-  for (let i = offset, n = checksumOffset; i < n; ++i) {
-    sum += buf[i]
-  }
-  for (
-    let i = checksumOffset + checksumField.size, n = offset + struct.size;
-    i < n;
-    ++i
-  ) {
-    sum += buf[i]
-  }
-
-  return ~sum >>> 0
-}
-
-const verifyChecksum = (struct, buf, offset) =>
-  unpack(struct.fields.checksum, buf, offset) ===
-  computeChecksum(struct, buf, offset)
-
-const getParentLocatorSize = parentLocatorEntry => {
-  const { platformDataSpace } = parentLocatorEntry
-
-  if (platformDataSpace < SECTOR_SIZE) {
-    return platformDataSpace * SECTOR_SIZE
-  }
-
-  return platformDataSpace % SECTOR_SIZE === 0 ? platformDataSpace : 0
-}
-
-// ===================================================================
-
-// Euclidean division, returns the quotient and the remainder of a / b.
-const div = (a, b) => [Math.floor(a / b), a % b]
-
-export default class Vhd {
-  constructor (handler, path) {
-    this._handler = handler
-    this._path = path
-
-    this._blockAllocationTable = null
-    this._blockBitmapSize = null
-    this._footer = null
-    this._header = null
-    this._parent = null
-    this._sectorsPerBlock = null
-  }
-
-  // Read `length` bytes starting from `begin`.
-  //
-  // - if `buffer`: it is filled starting from `offset`, and the
-  //   number of written bytes is returned;
-  // - otherwise: a new buffer is allocated and returned.
-  _read (begin, length, buf, offset) {
-    assert(begin >= 0)
-    assert(length > 0)
-
-    return this._handler
-      .createReadStream(this._path, {
-        end: begin + length - 1,
-        start: begin,
-      })
-      .then(
-        buf
-          ? stream =>
-            streamToExistingBuffer(
-              stream,
-              buf,
-              offset,
-              (offset || 0) + length
-            )
-          : streamToNewBuffer
-      )
-  }
-
-  // - if `buffer`: it is filled with 0 starting from `offset`, and
-  //   the number of written bytes is returned;
-  // - otherwise: a new buffer is allocated and returned.
-  _zeroes (length, buf, offset = 0) {
-    if (buf) {
-      assert(offset >= 0)
-      assert(length > 0)
-
-      const end = offset + length
-      assert(end <= buf.length)
-
-      buf.fill(0, offset, end)
-      return Promise.resolve(length)
-    }
-
-    return Promise.resolve(Buffer.alloc(length))
-  }
-
-  // Return the position of a block in the VHD or undefined if not found.
-  _getBlockAddress (block) {
-    assert(block >= 0)
-    assert(block < this._header.maxTableEntries)
-
-    const blockAddr = this._blockAllocationTable[block]
-    if (blockAddr !== 0xffffffff) {
-      return blockAddr * SECTOR_SIZE
-    }
-  }
-
-  // -----------------------------------------------------------------
-
-  async readHeaderAndFooter () {
-    const buf = await this._read(0, FOOTER_SIZE + HEADER_SIZE)
-
-    if (!verifyChecksum(fuFooter, buf)) {
-      throw new Error('footer checksum does not match')
-    }
-
-    if (!verifyChecksum(fuHeader, buf, FOOTER_SIZE)) {
-      throw new Error('header checksum does not match')
-    }
-
-    return this._initMetadata(
-      unpack(fuHeader, buf, FOOTER_SIZE),
-      unpack(fuFooter, buf)
-    )
-  }
-
-  async _initMetadata (header, footer) {
-    const sectorsPerBlock = header.blockSize / SECTOR_SIZE
-    assert(sectorsPerBlock % 1 === 0)
-
-    // 1 bit per sector, rounded up to full sectors
-    this._blockBitmapSize =
-      Math.ceil(sectorsPerBlock / 8 / SECTOR_SIZE) * SECTOR_SIZE
-    assert(this._blockBitmapSize === SECTOR_SIZE)
-
-    this._footer = footer
-    this._header = header
-    this.size = uint32ToUint64(this._footer.currentSize)
-
-    if (footer.diskType === HARD_DISK_TYPE_DIFFERENCING) {
-      const parent = new Vhd(
-        this._handler,
-        `${dirname(this._path)}/${header.parentUnicodeName}`
-      )
-      await parent.readHeaderAndFooter()
-      await parent.readBlockAllocationTable()
-
-      this._parent = parent
-    }
-  }
-
-  // -----------------------------------------------------------------
-
-  async readBlockAllocationTable () {
-    const { maxTableEntries, tableOffset } = this._header
-    const fuTable = fu.uint32(maxTableEntries)
-
-    this._blockAllocationTable = unpack(
-      fuTable,
-      await this._read(uint32ToUint64(tableOffset), fuTable.size)
-    )
-  }
-
-  // -----------------------------------------------------------------
-
-  // read a single sector in a block
-  async _readBlockSector (block, sector, begin, length, buf, offset) {
-    assert(begin >= 0)
-    assert(length > 0)
-    assert(begin + length <= SECTOR_SIZE)
-
-    const blockAddr = this._getBlockAddress(block)
-    const blockBitmapSize = this._blockBitmapSize
-    const parent = this._parent
-
-    if (
-      blockAddr &&
-      (!parent || testBit(await this._read(blockAddr, blockBitmapSize), sector))
-    ) {
-      return this._read(
-        blockAddr + blockBitmapSize + sector * SECTOR_SIZE + begin,
-        length,
-        buf,
-        offset
-      )
-    }
-
-    return parent
-      ? parent._readBlockSector(block, sector, begin, length, buf, offset)
-      : this._zeroes(length, buf, offset)
-  }
-
-  _readBlock (block, begin, length, buf, offset) {
-    assert(begin >= 0)
-    assert(length > 0)
-
-    const { blockSize } = this._header
-    assert(begin + length <= blockSize)
-
-    const blockAddr = this._getBlockAddress(block)
-    const parent = this._parent
-
-    if (!blockAddr) {
-      return parent
-        ? parent._readBlock(block, begin, length, buf, offset)
-        : this._zeroes(length, buf, offset)
-    }
-
-    if (!parent) {
-      return this._read(
-        blockAddr + this._blockBitmapSize + begin,
-        length,
-        buf,
-        offset
-      )
-    }
-
-    // FIXME: we should read as many sectors in a single pass as
-    // possible for maximum perf.
-    const [sector, beginInSector] = div(begin, SECTOR_SIZE)
-    return this._readBlockSector(
-      block,
-      sector,
-      beginInSector,
-      Math.min(length, SECTOR_SIZE - beginInSector),
-      buf,
-      offset
-    )
-  }
-
-  read (buf, begin, length = buf.length, offset) {
-    assert(Buffer.isBuffer(buf))
-    assert(begin >= 0)
-
-    const { size } = this
-    if (begin >= size) {
-      return Promise.resolve(0)
-    }
-
-    const { blockSize } = this._header
-    const [block, beginInBlock] = div(begin, blockSize)
-
-    return this._readBlock(
-      block,
-      beginInBlock,
-      Math.min(length, blockSize - beginInBlock, size - begin),
-      buf,
-      offset
-    )
-  }
-}

packages/vhd-lib/.babelrc.js

@@ -0,0 +1,3 @@
+module.exports = require('../../@xen-orchestra/babel-config')(
+  require('./package.json')
+)

packages/vhd-lib/package.json

@@ -0,0 +1,56 @@
+{
+  "name": "vhd-lib",
+  "version": "0.0.0",
+  "license": "AGPL-3.0",
+  "description": "Primitives for VHD file handling",
+  "keywords": [],
+  "homepage": "https://github.com/vatesfr/xen-orchestra/tree/master/packages/vhd-lib",
+  "bugs": "https://github.com/vatesfr/xen-orchestra/issues",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/vatesfr/xen-orchestra.git"
+  },
+  "preferGlobal": true,
+  "main": "dist/",
+  "bin": {},
+  "files": [
+    "dist/"
+  ],
+  "engines": {
+    "node": ">=6"
+  },
+  "dependencies": {
+    "@babel/runtime": "^7.0.0-beta.44",
+    "@xen-orchestra/fs": "^0.0.0",
+    "async-iterator-to-stream": "^1.0.2",
+    "execa": "^0.10.0",
+    "from2": "^2.3.0",
+    "fs-extra": "^5.0.0",
+    "get-stream": "^3.0.0",
+    "limit-concurrency-decorator": "^0.4.0",
+    "promise-toolbox": "^0.9.5",
+    "struct-fu": "^1.2.0",
+    "uuid": "^3.0.1",
+    "tmp": "^0.0.33"
+  },
+  "devDependencies": {
+    "@babel/cli": "7.0.0-beta.44",
+    "@babel/core": "7.0.0-beta.44",
+    "@babel/plugin-transform-runtime": "^7.0.0-beta.44",
+    "@babel/preset-env": "7.0.0-beta.44",
+    "@babel/preset-flow": "7.0.0-beta.44",
+    "babel-plugin-lodash": "^3.3.2",
+    "cross-env": "^5.1.3",
+    "fs-promise": "^2.0.0",
+    "index-modules": "^0.3.0",
+    "rimraf": "^2.6.2"
+  },
+  "scripts": {
+    "build": "cross-env NODE_ENV=production babel --source-maps --out-dir=dist/ src/",
+    "clean": "rimraf dist/",
+    "dev": "cross-env NODE_ENV=development babel --watch --source-maps --out-dir=dist/ src/",
+    "prebuild": "yarn run clean",
+    "predev": "yarn run clean",
+    "prepare": "yarn run build"
+  }
+}

packages/vhd-lib/src/_bitmap.js

@@ -0,0 +1,7 @@
+const MASK = 0x80
+
+export const set = (map, bit) => {
+  map[bit >> 3] |= MASK >> (bit & 7)
+}
+
+export const test = (map, bit) => ((map[bit >> 3] << (bit & 7)) & MASK) !== 0

packages/vhd-lib/src/_computeGeometryForSize.js

@@ -0,0 +1,37 @@
+import { SECTOR_SIZE } from './_constants'
+
+export default function computeGeometryForSize (size) {
+  const totalSectors = Math.ceil(size / 512)
+  let sectorsPerTrackCylinder
+  let heads
+  let cylinderTimesHeads
+  if (totalSectors > 65535 * 16 * 255) {
+    throw Error('disk is too big')
+  }
+  // straight copypasta from the file spec appendix on CHS Calculation
+  if (totalSectors >= 65535 * 16 * 63) {
+    sectorsPerTrackCylinder = 255
+    heads = 16
+    cylinderTimesHeads = totalSectors / sectorsPerTrackCylinder
+  } else {
+    sectorsPerTrackCylinder = 17
+    cylinderTimesHeads = totalSectors / sectorsPerTrackCylinder
+    heads = Math.floor((cylinderTimesHeads + 1023) / 1024)
+    if (heads < 4) {
+      heads = 4
+    }
+    if (cylinderTimesHeads >= heads * 1024 || heads > 16) {
+      sectorsPerTrackCylinder = 31
+      heads = 16
+      cylinderTimesHeads = totalSectors / sectorsPerTrackCylinder
+    }
+    if (cylinderTimesHeads >= heads * 1024) {
+      sectorsPerTrackCylinder = 63
+      heads = 16
+      cylinderTimesHeads = totalSectors / sectorsPerTrackCylinder
+    }
+  }
+  const cylinders = Math.ceil(cylinderTimesHeads / heads)
+  const actualSize = cylinders * heads * sectorsPerTrackCylinder * SECTOR_SIZE
+  return { cylinders, heads, sectorsPerTrackCylinder, actualSize }
+}

packages/vhd-lib/src/_constants.js

@@ -0,0 +1,30 @@
+export const BLOCK_UNUSED = 0xffffffff
+
+// This lib has been extracted from the Xen Orchestra project.
+export const CREATOR_APPLICATION = 'xo  '
+
+// Sizes in bytes.
+export const FOOTER_SIZE = 512
+export const HEADER_SIZE = 1024
+export const SECTOR_SIZE = 512
+export const DEFAULT_BLOCK_SIZE = 0x00200000 // from the spec
+
+export const FOOTER_COOKIE = 'conectix'
+export const HEADER_COOKIE = 'cxsparse'
+
+export const DISK_TYPE_FIXED = 2
+export const DISK_TYPE_DYNAMIC = 3
+export const DISK_TYPE_DIFFERENCING = 4
+
+export const PARENT_LOCATOR_ENTRIES = 8
+
+export const PLATFORM_NONE = 0
+export const PLATFORM_WI2R = 0x57693272
+export const PLATFORM_WI2K = 0x5769326b
+export const PLATFORM_W2RU = 0x57327275
+export const PLATFORM_W2KU = 0x57326b75
+export const PLATFORM_MAC = 0x4d616320
+export const PLATFORM_MACX = 0x4d616358
+
+export const FILE_FORMAT_VERSION = 1 << 16
+export const HEADER_VERSION = 1 << 16

packages/vhd-lib/src/_createFooterHeader.js

@@ -0,0 +1,56 @@
+import { v4 as generateUuid } from 'uuid'
+
+import { checksumStruct, fuFooter, fuHeader } from './_structs'
+import {
+  CREATOR_APPLICATION,
+  DEFAULT_BLOCK_SIZE as VHD_BLOCK_SIZE_BYTES,
+  DISK_TYPE_FIXED,
+  FILE_FORMAT_VERSION,
+  FOOTER_COOKIE,
+  FOOTER_SIZE,
+  HEADER_COOKIE,
+  HEADER_SIZE,
+  HEADER_VERSION,
+  PLATFORM_WI2K,
+} from './_constants'
+
+export function createFooter (
+  size,
+  timestamp,
+  geometry,
+  dataOffset,
+  diskType = DISK_TYPE_FIXED
+) {
+  const footer = fuFooter.pack({
+    cookie: FOOTER_COOKIE,
+    features: 2,
+    fileFormatVersion: FILE_FORMAT_VERSION,
+    dataOffset,
+    timestamp,
+    creatorApplication: CREATOR_APPLICATION,
+    creatorHostOs: PLATFORM_WI2K, // it looks like everybody is using Wi2k
+    originalSize: size,
+    currentSize: size,
+    diskGeometry: geometry,
+    diskType,
+    uuid: generateUuid(null, []),
+  })
+  checksumStruct(footer, fuFooter)
+  return footer
+}
+
+export function createHeader (
+  maxTableEntries,
+  tableOffset = HEADER_SIZE + FOOTER_SIZE,
+  blockSize = VHD_BLOCK_SIZE_BYTES
+) {
+  const header = fuHeader.pack({
+    cookie: HEADER_COOKIE,
+    tableOffset,
+    headerVersion: HEADER_VERSION,
+    maxTableEntries,
+    blockSize,
+  })
+  checksumStruct(header, fuHeader)
+  return header
+}

packages/vhd-lib/src/_structs.js

@@ -0,0 +1,121 @@
+import assert from 'assert'
+import fu from 'struct-fu'
+
+import { FOOTER_SIZE, HEADER_SIZE, PARENT_LOCATOR_ENTRIES } from './_constants'
+
+const SIZE_OF_32_BITS = Math.pow(2, 32)
+
+const uint64 = fu.derive(
+  fu.uint32(2),
+  number => [Math.floor(number / SIZE_OF_32_BITS), number % SIZE_OF_32_BITS],
+  _ => _[0] * SIZE_OF_32_BITS + _[1]
+)
+const uint64Undefinable = fu.derive(
+  fu.uint32(2),
+  number =>
+    number === undefined
+      ? [0xffffffff, 0xffffffff]
+      : [Math.floor(number / SIZE_OF_32_BITS), number % SIZE_OF_32_BITS],
+  _ =>
+    _[0] === 0xffffffff && _[1] === 0xffffffff
+      ? undefined
+      : _[0] * SIZE_OF_32_BITS + _[1]
+)
+
+export const fuFooter = fu.struct([
+  fu.char('cookie', 8), // 0
+  fu.uint32('features'), // 8
+  fu.uint32('fileFormatVersion'), // 12
+  uint64Undefinable('dataOffset'), // offset of the header
+  fu.uint32('timestamp'), // 24
+  fu.char('creatorApplication', 4), // 28
+  fu.uint32('creatorVersion'), // 32
+  fu.uint32('creatorHostOs'), // 36
+  uint64('originalSize'),
+  uint64('currentSize'),
+  fu.struct('diskGeometry', [
+    fu.uint16('cylinders'), // 56
+    fu.uint8('heads'), // 58
+    fu.uint8('sectorsPerTrackCylinder'), // 59
+  ]),
+  fu.uint32('diskType'), // 60 Disk type, must be equal to HARD_DISK_TYPE_DYNAMIC/HARD_DISK_TYPE_DIFFERENCING.
+  fu.uint32('checksum'), // 64
+  fu.uint8('uuid', 16), // 68
+  fu.char('saved'), // 84
+  fu.char('hidden'), // 85 TODO: should probably be merged in reserved
+  fu.char('reserved', 426), // 86
+])
+assert.strictEqual(fuFooter.size, FOOTER_SIZE)
+
+export const fuHeader = fu.struct([
+  fu.char('cookie', 8),
+  uint64Undefinable('dataOffset'),
+  uint64('tableOffset'),
+  fu.uint32('headerVersion'),
+  fu.uint32('maxTableEntries'), // Max entries in the Block Allocation Table.
+  fu.uint32('blockSize'), // Block size in bytes. Default (2097152 => 2MB)
+  fu.uint32('checksum'),
+  fu.uint8('parentUuid', 16),
+  fu.uint32('parentTimestamp'),
+  fu.uint32('reserved1'),
+  fu.char16be('parentUnicodeName', 512),
+  fu.struct(
+    'parentLocatorEntry',
+    [
+      fu.uint32('platformCode'),
+      fu.uint32('platformDataSpace'),
+      fu.uint32('platformDataLength'),
+      fu.uint32('reserved'),
+      uint64('platformDataOffset'), // Absolute byte offset of the locator data.
+    ],
+    PARENT_LOCATOR_ENTRIES
+  ),
+  fu.char('reserved2', 256),
+])
+assert.strictEqual(fuHeader.size, HEADER_SIZE)
+
+export const packField = (field, value, buf) => {
+  const { offset } = field
+
+  field.pack(
+    value,
+    buf,
+    typeof offset !== 'object' ? { bytes: offset, bits: 0 } : offset
+  )
+}
+
+export const unpackField = (field, buf) => {
+  const { offset } = field
+
+  return field.unpack(
+    buf,
+    typeof offset !== 'object' ? { bytes: offset, bits: 0 } : offset
+  )
+}
+
+// Returns the checksum of a raw struct.
+// The raw struct (footer or header) is altered with the new sum.
+export function checksumStruct (buf, struct) {
+  const checksumField = struct.fields.checksum
+  let sum = 0
+
+  // Do not use the stored checksum to compute the new checksum.
+  const checksumOffset = checksumField.offset
+  for (let i = 0, n = checksumOffset; i < n; ++i) {
+    sum += buf[i]
+  }
+  for (
+    let i = checksumOffset + checksumField.size, n = struct.size;
+    i < n;
+    ++i
+  ) {
+    sum += buf[i]
+  }
+
+  sum = ~sum >>> 0
+
+  // Write new sum.
+  packField(checksumField, sum, buf)
+
+  return sum
+}

packages/vhd-lib/src/chain.js

@@ -0,0 +1,37 @@
+import { dirname, relative } from 'path'
+
+import Vhd from './vhd'
+import { DISK_TYPE_DIFFERENCING } from './_constants'
+
+export default async function chain (
+  parentHandler,
+  parentPath,
+  childHandler,
+  childPath,
+  force = false
+) {
+  const parentVhd = new Vhd(parentHandler, parentPath)
+  const childVhd = new Vhd(childHandler, childPath)
+
+  await childVhd.readHeaderAndFooter()
+  const { header, footer } = childVhd
+
+  if (footer.diskType !== DISK_TYPE_DIFFERENCING) {
+    if (!force) {
+      throw new Error('cannot chain disk of type ' + footer.diskType)
+    }
+    footer.diskType = DISK_TYPE_DIFFERENCING
+  }
+
+  await Promise.all([
+    childVhd.readBlockAllocationTable(),
+    parentVhd.readHeaderAndFooter(),
+  ])
+
+  const parentName = relative(dirname(childPath), parentPath)
+  header.parentUuid = parentVhd.footer.uuid
+  header.parentUnicodeName = parentName
+  await childVhd.setUniqueParentLocator(parentName)
+  await childVhd.writeHeader()
+  await childVhd.writeFooter()
+}

packages/vhd-lib/src/createReadableRawStream.js

@@ -0,0 +1,42 @@
+import asyncIteratorToStream from 'async-iterator-to-stream'
+
+import computeGeometryForSize from './_computeGeometryForSize'
+import { createFooter } from './_createFooterHeader'
+
+export default asyncIteratorToStream(async function * (size, blockParser) {
+  const geometry = computeGeometryForSize(size)
+  const actualSize = geometry.actualSize
+  const footer = createFooter(
+    actualSize,
+    Math.floor(Date.now() / 1000),
+    geometry
+  )
+  let position = 0
+
+  function * filePadding (paddingLength) {
+    if (paddingLength > 0) {
+      const chunkSize = 1024 * 1024 // 1Mo
+      for (
+        let paddingPosition = 0;
+        paddingPosition + chunkSize < paddingLength;
+        paddingPosition += chunkSize
+      ) {
+        yield Buffer.alloc(chunkSize)
+      }
+      yield Buffer.alloc(paddingLength % chunkSize)
+    }
+  }
+
+  let next
+  while ((next = await blockParser.next()) !== null) {
+    const paddingLength = next.offsetBytes - position
+    if (paddingLength < 0) {
+      throw new Error('Received out of order blocks')
+    }
+    yield * filePadding(paddingLength)
+    yield next.data
+    position = next.offsetBytes + next.data.length
+  }
+  yield * filePadding(actualSize - position)
+  yield footer
+})

packages/vhd-lib/src/createReadableSparseStream.js

@@ -0,0 +1,143 @@
+import asyncIteratorToStream from 'async-iterator-to-stream'
+
+import computeGeometryForSize from './_computeGeometryForSize'
+import { createFooter, createHeader } from './_createFooterHeader'
+import {
+  BLOCK_UNUSED,
+  DEFAULT_BLOCK_SIZE as VHD_BLOCK_SIZE_BYTES,
+  DISK_TYPE_DYNAMIC,
+  FOOTER_SIZE,
+  HEADER_SIZE,
+  SECTOR_SIZE,
+} from './_constants'
+
+import { set as setBitmap } from './_bitmap'
+
+const VHD_BLOCK_SIZE_SECTORS = VHD_BLOCK_SIZE_BYTES / SECTOR_SIZE
+
+/**
+ * @returns {Array} an array of occupation bitmap, each bit mapping an input block size of bytes
+ */
+function createBAT (
+  firstBlockPosition,
+  blockAddressList,
+  ratio,
+  bat,
+  bitmapSize
+) {
+  const vhdOccupationTable = []
+  let currentVhdPositionSector = firstBlockPosition / SECTOR_SIZE
+  blockAddressList.forEach(blockPosition => {
+    const scaled = blockPosition / VHD_BLOCK_SIZE_BYTES
+    const vhdTableIndex = Math.floor(scaled)
+    if (bat.readUInt32BE(vhdTableIndex * 4) === BLOCK_UNUSED) {
+      bat.writeUInt32BE(currentVhdPositionSector, vhdTableIndex * 4)
+      currentVhdPositionSector +=
+        (bitmapSize + VHD_BLOCK_SIZE_BYTES) / SECTOR_SIZE
+    }
+    // not using bit operators to avoid the int32 coercion, that way we can go to 53 bits
+    vhdOccupationTable[vhdTableIndex] =
+      (vhdOccupationTable[vhdTableIndex] || 0) +
+      Math.pow(2, (scaled % 1) * ratio)
+  })
+  return vhdOccupationTable
+}
+
+function createBitmap (bitmapSize, ratio, vhdOccupationBucket) {
+  const bitmap = Buffer.alloc(bitmapSize)
+  for (let i = 0; i < VHD_BLOCK_SIZE_SECTORS / ratio; i++) {
+    // do not shift to avoid int32 coercion
+    if ((vhdOccupationBucket * Math.pow(2, -i)) & 1) {
+      for (let j = 0; j < ratio; j++) {
+        setBitmap(bitmap, i * ratio + j)
+      }
+    }
+  }
+  return bitmap
+}
+
+function * yieldIfNotEmpty (buffer) {
+  if (buffer.length > 0) {
+    yield buffer
+  }
+}
+
+async function * generateFileContent (
+  blockIterator,
+  bitmapSize,
+  ratio,
+  vhdOccupationTable
+) {
+  let currentVhdBlockIndex = -1
+  let currentBlockBuffer = Buffer.alloc(0)
+  for await (const next of blockIterator) {
+    const batEntry = Math.floor(next.offsetBytes / VHD_BLOCK_SIZE_BYTES)
+    if (batEntry !== currentVhdBlockIndex) {
+      yield * yieldIfNotEmpty(currentBlockBuffer)
+      currentBlockBuffer = Buffer.alloc(VHD_BLOCK_SIZE_BYTES)
+      currentVhdBlockIndex = batEntry
+      yield createBitmap(bitmapSize, ratio, vhdOccupationTable[batEntry])
+    }
+    next.data.copy(currentBlockBuffer, next.offsetBytes % VHD_BLOCK_SIZE_BYTES)
+  }
+  yield * yieldIfNotEmpty(currentBlockBuffer)
+}
+
+export default asyncIteratorToStream(async function * (
+  diskSize,
+  incomingBlockSize,
+  blockAddressList,
+  blockIterator
+) {
+  const ratio = VHD_BLOCK_SIZE_BYTES / incomingBlockSize
+  if (ratio % 1 !== 0) {
+    throw new Error(
+      `Can't import file, grain size (${incomingBlockSize}) is not a divider of VHD block size ${VHD_BLOCK_SIZE_BYTES}`
+    )
+  }
+  if (ratio > 53) {
+    throw new Error(
+      `Can't import file, grain size / block size ratio is > 53 (${ratio})`
+    )
+  }
+
+  const maxTableEntries = Math.ceil(diskSize / VHD_BLOCK_SIZE_BYTES) + 1
+  const tablePhysicalSizeBytes = Math.ceil(maxTableEntries * 4 / 512) * 512
+
+  const batPosition = FOOTER_SIZE + HEADER_SIZE
+  const firstBlockPosition = batPosition + tablePhysicalSizeBytes
+  const geometry = computeGeometryForSize(diskSize)
+  const actualSize = geometry.actualSize
+  const footer = createFooter(
+    actualSize,
+    Math.floor(Date.now() / 1000),
+    geometry,
+    FOOTER_SIZE,
+    DISK_TYPE_DYNAMIC
+  )
+  const header = createHeader(
+    maxTableEntries,
+    batPosition,
+    VHD_BLOCK_SIZE_BYTES
+  )
+  const bitmapSize =
+    Math.ceil(VHD_BLOCK_SIZE_SECTORS / 8 / SECTOR_SIZE) * SECTOR_SIZE
+  const bat = Buffer.alloc(tablePhysicalSizeBytes, 0xff)
+  const vhdOccupationTable = createBAT(
+    firstBlockPosition,
+    blockAddressList,
+    ratio,
+    bat,
+    bitmapSize
+  )
+  yield footer
+  yield header
+  yield bat
+  yield * generateFileContent(
+    blockIterator,
+    bitmapSize,
+    ratio,
+    vhdOccupationTable
+  )
+  yield footer
+})

packages/vhd-lib/src/createSyntheticStream.js

@@ -0,0 +1,153 @@
+import asyncIteratorToStream from 'async-iterator-to-stream'
+import { dirname, resolve } from 'path'
+
+import Vhd from './vhd'
+import {
+  BLOCK_UNUSED,
+  DISK_TYPE_DYNAMIC,
+  FOOTER_SIZE,
+  HEADER_SIZE,
+  SECTOR_SIZE,
+} from './_constants'
+import { fuFooter, fuHeader, checksumStruct } from './_structs'
+import { test as mapTestBit } from './_bitmap'
+
+const resolveRelativeFromFile = (file, path) =>
+  resolve('/', dirname(file), path).slice(1)
+
+export default asyncIteratorToStream(function * (handler, path) {
+  const fds = []
+
+  try {
+    const vhds = []
+    while (true) {
+      const fd = yield handler.openFile(path, 'r')
+      fds.push(fd)
+      const vhd = new Vhd(handler, fd)
+      vhds.push(vhd)
+      yield vhd.readHeaderAndFooter()
+      yield vhd.readBlockAllocationTable()
+
+      if (vhd.footer.diskType === DISK_TYPE_DYNAMIC) {
+        break
+      }
+
+      path = resolveRelativeFromFile(path, vhd.header.parentUnicodeName)
+    }
+    const nVhds = vhds.length
+
+    // this the VHD we want to synthetize
+    const vhd = vhds[0]
+
+    // this is the root VHD
+    const rootVhd = vhds[nVhds - 1]
+
+    // data of our synthetic VHD
+    // TODO: set parentLocatorEntry-s in header
+    let header = {
+      ...vhd.header,
+      tableOffset: FOOTER_SIZE + HEADER_SIZE,
+      parentTimestamp: rootVhd.header.parentTimestamp,
+      parentUnicodeName: rootVhd.header.parentUnicodeName,
+      parentUuid: rootVhd.header.parentUuid,
+    }
+
+    const bat = Buffer.allocUnsafe(vhd.batSize)
+    let footer = {
+      ...vhd.footer,
+      dataOffset: FOOTER_SIZE,
+      diskType: rootVhd.footer.diskType,
+    }
+    const sectorsPerBlockData = vhd.sectorsPerBlock
+    const sectorsPerBlock = sectorsPerBlockData + vhd.bitmapSize / SECTOR_SIZE
+
+    const nBlocks = Math.ceil(footer.currentSize / header.blockSize)
+
+    const blocksOwner = new Array(nBlocks)
+    for (
+      let iBlock = 0,
+        blockOffset = Math.ceil(
+          (header.tableOffset + bat.length) / SECTOR_SIZE
+        );
+      iBlock < nBlocks;
+      ++iBlock
+    ) {
+      let blockSector = BLOCK_UNUSED
+      for (let i = 0; i < nVhds; ++i) {
+        if (vhds[i].containsBlock(iBlock)) {
+          blocksOwner[iBlock] = i
+          blockSector = blockOffset
+          blockOffset += sectorsPerBlock
+          break
+        }
+      }
+      bat.writeUInt32BE(blockSector, iBlock * 4)
+    }
+
+    footer = fuFooter.pack(footer)
+    checksumStruct(footer, fuFooter)
+    yield footer
+
+    header = fuHeader.pack(header)
+    checksumStruct(header, fuHeader)
+    yield header
+
+    yield bat
+
+    // TODO: for generic usage the bitmap needs to be properly computed for each block
+    const bitmap = Buffer.alloc(vhd.bitmapSize, 0xff)
+    for (let iBlock = 0; iBlock < nBlocks; ++iBlock) {
+      const owner = blocksOwner[iBlock]
+      if (owner === undefined) {
+        continue
+      }
+
+      yield bitmap
+
+      const blocksByVhd = new Map()
+      const emitBlockSectors = function * (iVhd, i, n) {
+        const vhd = vhds[iVhd]
+        const isRootVhd = vhd === rootVhd
+        if (!vhd.containsBlock(iBlock)) {
+          if (isRootVhd) {
+            yield Buffer.alloc((n - i) * SECTOR_SIZE)
+          } else {
+            yield * emitBlockSectors(iVhd + 1, i, n)
+          }
+          return
+        }
+        let block = blocksByVhd.get(vhd)
+        if (block === undefined) {
+          block = yield vhd._readBlock(iBlock)
+          blocksByVhd.set(vhd, block)
+        }
+        const { bitmap, data } = block
+        if (isRootVhd) {
+          yield data.slice(i * SECTOR_SIZE, n * SECTOR_SIZE)
+          return
+        }
+        while (i < n) {
+          const hasData = mapTestBit(bitmap, i)
+          const start = i
+          do {
+            ++i
+          } while (i < n && mapTestBit(bitmap, i) === hasData)
+          if (hasData) {
+            yield data.slice(start * SECTOR_SIZE, i * SECTOR_SIZE)
+          } else {
+            yield * emitBlockSectors(iVhd + 1, start, i)
+          }
+        }
+      }
+      yield * emitBlockSectors(owner, 0, sectorsPerBlockData)
+    }
+
+    yield footer
+  } finally {
+    for (let i = 0, n = fds.length; i < n; ++i) {
+      handler.closeFile(fds[i]).catch(error => {
+        console.warn('createReadStream, closeFd', i, error)
+      })
+    }
+  }
+})

packages/vhd-lib/src/index.js

@@ -0,0 +1,8 @@
+export { default } from './vhd'
+export { default as chainVhd } from './chain'
+export { default as createReadableRawStream } from './createReadableRawStream'
+export {
+  default as createReadableSparseStream,
+} from './createReadableSparseStream'
+export { default as createSyntheticStream } from './createSyntheticStream'
+export { default as mergeVhd } from './merge'

packages/vhd-lib/src/merge.integ.spec.js

@@ -0,0 +1,283 @@
+/* eslint-env jest */
+
+import execa from 'execa'
+import fs from 'fs-extra'
+import getStream from 'get-stream'
+import rimraf from 'rimraf'
+import tmp from 'tmp'
+import { getHandler } from '@xen-orchestra/fs'
+import { randomBytes } from 'crypto'
+import { fromEvent, fromCallback as pFromCallback } from 'promise-toolbox'
+
+import chainVhd from './chain'
+import createReadStream from './createSyntheticStream'
+import Vhd from './vhd'
+import vhdMerge from './merge'
+import { SECTOR_SIZE } from './_constants'
+
+const initialDir = process.cwd()
+
+jest.setTimeout(60000)
+
+beforeEach(async () => {
+  const dir = await pFromCallback(cb => tmp.dir(cb))
+  process.chdir(dir)
+})
+
+afterEach(async () => {
+  const tmpDir = process.cwd()
+  process.chdir(initialDir)
+  await pFromCallback(cb => rimraf(tmpDir, cb))
+})
+
+async function createRandomFile (name, sizeMb) {
+  await execa('bash', [
+    '-c',
+    `< /dev/urandom tr -dc "\\t\\n [:alnum:]" | head -c ${sizeMb}M >${name}`,
+  ])
+}
+
+async function checkFile (vhdName) {
+  await execa('vhd-util', ['check', '-p', '-b', '-t', '-n', vhdName])
+}
+
+async function recoverRawContent (vhdName, rawName, originalSize) {
+  await checkFile(vhdName)
+  await execa('qemu-img', ['convert', '-fvpc', '-Oraw', vhdName, rawName])
+  if (originalSize !== undefined) {
+    await execa('truncate', ['-s', originalSize, rawName])
+  }
+}
+
+async function convertFromRawToVhd (rawName, vhdName) {
+  await execa('qemu-img', ['convert', '-f', 'raw', '-Ovpc', rawName, vhdName])
+}
+
+test('blocks can be moved', async () => {
+  const initalSize = 4
+  await createRandomFile('randomfile', initalSize)
+  await convertFromRawToVhd('randomfile', 'randomfile.vhd')
+  const handler = getHandler({ url: 'file://' + process.cwd() })
+  const originalSize = await handler.getSize('randomfile')
+  const newVhd = new Vhd(handler, 'randomfile.vhd')
+  await newVhd.readHeaderAndFooter()
+  await newVhd.readBlockAllocationTable()
+  await newVhd._freeFirstBlockSpace(8000000)
+  await recoverRawContent('randomfile.vhd', 'recovered', originalSize)
+  expect(await fs.readFile('recovered')).toEqual(
+    await fs.readFile('randomfile')
+  )
+})
+
+test('the BAT MSB is not used for sign', async () => {
+  const randomBuffer = await pFromCallback(cb => randomBytes(SECTOR_SIZE, cb))
+  await execa('qemu-img', ['create', '-fvpc', 'empty.vhd', '1.8T'])
+  const handler = getHandler({ url: 'file://' + process.cwd() })
+  const vhd = new Vhd(handler, 'empty.vhd')
+  await vhd.readHeaderAndFooter()
+  await vhd.readBlockAllocationTable()
+  // we want the bit 31 to be on, to prove it's not been used for sign
+  const hugeWritePositionSectors = Math.pow(2, 31) + 200
+  await vhd.writeData(hugeWritePositionSectors, randomBuffer)
+  await checkFile('empty.vhd')
+  // here we are moving the first sector very far in the VHD to prove the BAT doesn't use signed int32
+  const hugePositionBytes = hugeWritePositionSectors * SECTOR_SIZE
+  await vhd._freeFirstBlockSpace(hugePositionBytes)
+
+  // we recover the data manually for speed reasons.
+  // fs.write() with offset is way faster than qemu-img when there is a 1.5To
+  // hole before the block of data
+  const recoveredFile = await fs.open('recovered', 'w')
+  try {
+    const vhd2 = new Vhd(handler, 'empty.vhd')
+    await vhd2.readHeaderAndFooter()
+    await vhd2.readBlockAllocationTable()
+    for (let i = 0; i < vhd.header.maxTableEntries; i++) {
+      const entry = vhd._getBatEntry(i)
+      if (entry !== 0xffffffff) {
+        const block = (await vhd2._readBlock(i)).data
+        await fs.write(
+          recoveredFile,
+          block,
+          0,
+          block.length,
+          vhd2.header.blockSize * i
+        )
+      }
+    }
+  } finally {
+    fs.close(recoveredFile)
+  }
+  const recovered = await getStream.buffer(
+    await fs.createReadStream('recovered', {
+      start: hugePositionBytes,
+      end: hugePositionBytes + randomBuffer.length - 1,
+    })
+  )
+  expect(recovered).toEqual(randomBuffer)
+})
+
+test('writeData on empty file', async () => {
+  const mbOfRandom = 3
+  await createRandomFile('randomfile', mbOfRandom)
+  await execa('qemu-img', ['create', '-fvpc', 'empty.vhd', mbOfRandom + 'M'])
+  const randomData = await fs.readFile('randomfile')
+  const handler = getHandler({ url: 'file://' + process.cwd() })
+  const originalSize = await handler.getSize('randomfile')
+  const newVhd = new Vhd(handler, 'empty.vhd')
+  await newVhd.readHeaderAndFooter()
+  await newVhd.readBlockAllocationTable()
+  await newVhd.writeData(0, randomData)
+  await recoverRawContent('empty.vhd', 'recovered', originalSize)
+  expect(await fs.readFile('recovered')).toEqual(randomData)
+})
+
+test('writeData in 2 non-overlaping operations', async () => {
+  const mbOfRandom = 3
+  await createRandomFile('randomfile', mbOfRandom)
+  await execa('qemu-img', ['create', '-fvpc', 'empty.vhd', mbOfRandom + 'M'])
+  const randomData = await fs.readFile('randomfile')
+  const handler = getHandler({ url: 'file://' + process.cwd() })
+  const originalSize = await handler.getSize('randomfile')
+  const newVhd = new Vhd(handler, 'empty.vhd')
+  await newVhd.readHeaderAndFooter()
+  await newVhd.readBlockAllocationTable()
+  const splitPointSectors = 2
+  await newVhd.writeData(0, randomData.slice(0, splitPointSectors * 512))
+  await newVhd.writeData(
+    splitPointSectors,
+    randomData.slice(splitPointSectors * 512)
+  )
+  await recoverRawContent('empty.vhd', 'recovered', originalSize)
+  expect(await fs.readFile('recovered')).toEqual(randomData)
+})
+
+test('writeData in 2 overlaping operations', async () => {
+  const mbOfRandom = 3
+  await createRandomFile('randomfile', mbOfRandom)
+  await execa('qemu-img', ['create', '-fvpc', 'empty.vhd', mbOfRandom + 'M'])
+  const randomData = await fs.readFile('randomfile')
+  const handler = getHandler({ url: 'file://' + process.cwd() })
+  const originalSize = await handler.getSize('randomfile')
+  const newVhd = new Vhd(handler, 'empty.vhd')
+  await newVhd.readHeaderAndFooter()
+  await newVhd.readBlockAllocationTable()
+  const endFirstWrite = 3
+  const startSecondWrite = 2
+  await newVhd.writeData(0, randomData.slice(0, endFirstWrite * 512))
+  await newVhd.writeData(
+    startSecondWrite,
+    randomData.slice(startSecondWrite * 512)
+  )
+  await recoverRawContent('empty.vhd', 'recovered', originalSize)
+  expect(await fs.readFile('recovered')).toEqual(randomData)
+})
+
+test('BAT can be extended and blocks moved', async () => {
+  const initalSize = 4
+  await createRandomFile('randomfile', initalSize)
+  await convertFromRawToVhd('randomfile', 'randomfile.vhd')
+  const handler = getHandler({ url: 'file://' + process.cwd() })
+  const originalSize = await handler.getSize('randomfile')
+  const newVhd = new Vhd(handler, 'randomfile.vhd')
+  await newVhd.readHeaderAndFooter()
+  await newVhd.readBlockAllocationTable()
+  await newVhd.ensureBatSize(2000)
+  await recoverRawContent('randomfile.vhd', 'recovered', originalSize)
+  expect(await fs.readFile('recovered')).toEqual(
+    await fs.readFile('randomfile')
+  )
+})
+
+test('coalesce works with empty parent files', async () => {
+  const mbOfRandom = 2
+  await createRandomFile('randomfile', mbOfRandom)
+  await convertFromRawToVhd('randomfile', 'randomfile.vhd')
+  await execa('qemu-img', [
+    'create',
+    '-fvpc',
+    'empty.vhd',
+    mbOfRandom + 1 + 'M',
+  ])
+  await checkFile('randomfile.vhd')
+  await checkFile('empty.vhd')
+  const handler = getHandler({ url: 'file://' + process.cwd() })
+  const originalSize = await handler._getSize('randomfile')
+  await chainVhd(handler, 'empty.vhd', handler, 'randomfile.vhd', true)
+  await checkFile('randomfile.vhd')
+  await checkFile('empty.vhd')
+  await vhdMerge(handler, 'empty.vhd', handler, 'randomfile.vhd')
+  await recoverRawContent('empty.vhd', 'recovered', originalSize)
+  expect(await fs.readFile('recovered')).toEqual(
+    await fs.readFile('randomfile')
+  )
+})
+
+test('coalesce works in normal cases', async () => {
+  const mbOfRandom = 5
+  await createRandomFile('randomfile', mbOfRandom)
+  await createRandomFile('small_randomfile', Math.ceil(mbOfRandom / 2))
+  await execa('qemu-img', [
+    'create',
+    '-fvpc',
+    'parent.vhd',
+    mbOfRandom + 1 + 'M',
+  ])
+  await convertFromRawToVhd('randomfile', 'child1.vhd')
+  const handler = getHandler({ url: 'file://' + process.cwd() })
+  await execa('vhd-util', ['snapshot', '-n', 'child2.vhd', '-p', 'child1.vhd'])
+  const vhd = new Vhd(handler, 'child2.vhd')
+  await vhd.readHeaderAndFooter()
+  await vhd.readBlockAllocationTable()
+  vhd.footer.creatorApplication = 'xoa'
+  await vhd.writeFooter()
+
+  const originalSize = await handler._getSize('randomfile')
+  await chainVhd(handler, 'parent.vhd', handler, 'child1.vhd', true)
+  await execa('vhd-util', ['check', '-t', '-n', 'child1.vhd'])
+  await chainVhd(handler, 'child1.vhd', handler, 'child2.vhd', true)
+  await execa('vhd-util', ['check', '-t', '-n', 'child2.vhd'])
+  const smallRandom = await fs.readFile('small_randomfile')
+  const newVhd = new Vhd(handler, 'child2.vhd')
+  await newVhd.readHeaderAndFooter()
+  await newVhd.readBlockAllocationTable()
+  await newVhd.writeData(5, smallRandom)
+  await checkFile('child2.vhd')
+  await checkFile('child1.vhd')
+  await checkFile('parent.vhd')
+  await vhdMerge(handler, 'parent.vhd', handler, 'child1.vhd')
+  await checkFile('parent.vhd')
+  await chainVhd(handler, 'parent.vhd', handler, 'child2.vhd', true)
+  await checkFile('child2.vhd')
+  await vhdMerge(handler, 'parent.vhd', handler, 'child2.vhd')
+  await checkFile('parent.vhd')
+  await recoverRawContent(
+    'parent.vhd',
+    'recovered_from_coalescing',
+    originalSize
+  )
+  await execa('cp', ['randomfile', 'randomfile2'])
+  const fd = await fs.open('randomfile2', 'r+')
+  try {
+    await fs.write(fd, smallRandom, 0, smallRandom.length, 5 * SECTOR_SIZE)
+  } finally {
+    await fs.close(fd)
+  }
+  expect(await fs.readFile('recovered_from_coalescing')).toEqual(
+    await fs.readFile('randomfile2')
+  )
+})
+
+test('createSyntheticStream passes vhd-util check', async () => {
+  const initalSize = 4
+  await createRandomFile('randomfile', initalSize)
+  await convertFromRawToVhd('randomfile', 'randomfile.vhd')
+  const handler = getHandler({ url: 'file://' + process.cwd() })
+  const stream = createReadStream(handler, 'randomfile.vhd')
+  await fromEvent(
+    stream.pipe(await fs.createWriteStream('recovered.vhd')),
+    'finish'
+  )
+  await checkFile('recovered.vhd')
+  await execa('qemu-img', ['compare', 'recovered.vhd', 'randomfile'])
+})

packages/vhd-lib/src/merge.js

@@ -0,0 +1,77 @@
+// TODO: remove once completely merged in vhd.js
+
+import assert from 'assert'
+import concurrency from 'limit-concurrency-decorator'
+
+import Vhd from './vhd'
+import { DISK_TYPE_DIFFERENCING, DISK_TYPE_DYNAMIC } from './_constants'
+
+// Merge vhd child into vhd parent.
+export default concurrency(2)(async function merge (
+  parentHandler,
+  parentPath,
+  childHandler,
+  childPath
+) {
+  const parentFd = await parentHandler.openFile(parentPath, 'r+')
+  try {
+    const parentVhd = new Vhd(parentHandler, parentFd)
+    const childFd = await childHandler.openFile(childPath, 'r')
+    try {
+      const childVhd = new Vhd(childHandler, childFd)
+
+      // Reading footer and header.
+      await Promise.all([
+        parentVhd.readHeaderAndFooter(),
+        childVhd.readHeaderAndFooter(),
+      ])
+
+      assert(childVhd.header.blockSize === parentVhd.header.blockSize)
+
+      const parentDiskType = parentVhd.footer.diskType
+      assert(
+        parentDiskType === DISK_TYPE_DIFFERENCING ||
+          parentDiskType === DISK_TYPE_DYNAMIC
+      )
+      assert.strictEqual(childVhd.footer.diskType, DISK_TYPE_DIFFERENCING)
+
+      // Read allocation table of child/parent.
+      await Promise.all([
+        parentVhd.readBlockAllocationTable(),
+        childVhd.readBlockAllocationTable(),
+      ])
+
+      await parentVhd.ensureBatSize(childVhd.header.maxTableEntries)
+
+      let mergedDataSize = 0
+      for (
+        let blockId = 0;
+        blockId < childVhd.header.maxTableEntries;
+        blockId++
+      ) {
+        if (childVhd.containsBlock(blockId)) {
+          mergedDataSize += await parentVhd.coalesceBlock(childVhd, blockId)
+        }
+      }
+
+      const cFooter = childVhd.footer
+      const pFooter = parentVhd.footer
+
+      pFooter.currentSize = cFooter.currentSize
+      pFooter.diskGeometry = { ...cFooter.diskGeometry }
+      pFooter.originalSize = cFooter.originalSize
+      pFooter.timestamp = cFooter.timestamp
+      pFooter.uuid = cFooter.uuid
+
+      // necessary to update values and to recreate the footer after block
+      // creation
+      await parentVhd.writeFooter()
+
+      return mergedDataSize
+    } finally {
+      await childHandler.closeFile(childFd)
+    }
+  } finally {
+    await parentHandler.closeFile(parentFd)
+  }
+})

packages/vhd-lib/src/vhd.integ.spec.js

@@ -0,0 +1,134 @@
+/* eslint-env jest */
+import execa from 'execa'
+import rimraf from 'rimraf'
+import tmp from 'tmp'
+import { createWriteStream, readFile } from 'fs-promise'
+import { fromCallback as pFromCallback, fromEvent } from 'promise-toolbox'
+
+import { createFooter } from './_createFooterHeader'
+import createReadableRawVHDStream from './createReadableRawStream'
+import createReadableSparseVHDStream from './createReadableSparseStream'
+
+const initialDir = process.cwd()
+
+beforeEach(async () => {
+  const dir = await pFromCallback(cb => tmp.dir(cb))
+  process.chdir(dir)
+})
+
+afterEach(async () => {
+  const tmpDir = process.cwd()
+  process.chdir(initialDir)
+  await pFromCallback(cb => rimraf(tmpDir, cb))
+})
+
+test('createFooter() does not crash', () => {
+  createFooter(104448, Math.floor(Date.now() / 1000), {
+    cylinders: 3,
+    heads: 4,
+    sectorsPerTrack: 17,
+  })
+})
+
+test('ReadableRawVHDStream does not crash', async () => {
+  const data = [
+    {
+      offsetBytes: 100,
+      data: Buffer.from('azerzaerazeraze', 'ascii'),
+    },
+    {
+      offsetBytes: 700,
+      data: Buffer.from('gdfslkdfguer', 'ascii'),
+    },
+  ]
+  let index = 0
+  const mockParser = {
+    next: () => {
+      if (index < data.length) {
+        const result = data[index]
+        index++
+        return result
+      } else {
+        return null
+      }
+    },
+  }
+  const fileSize = 1000
+  const stream = createReadableRawVHDStream(fileSize, mockParser)
+  const pipe = stream.pipe(createWriteStream('output.vhd'))
+  await fromEvent(pipe, 'finish')
+  await execa('vhd-util', ['check', '-t', '-i', '-n', 'output.vhd'])
+})
+
+test('ReadableRawVHDStream detects when blocks are out of order', async () => {
+  const data = [
+    {
+      offsetBytes: 700,
+      data: Buffer.from('azerzaerazeraze', 'ascii'),
+    },
+    {
+      offsetBytes: 100,
+      data: Buffer.from('gdfslkdfguer', 'ascii'),
+    },
+  ]
+  let index = 0
+  const mockParser = {
+    next: () => {
+      if (index < data.length) {
+        const result = data[index]
+        index++
+        return result
+      } else {
+        return null
+      }
+    },
+  }
+  return expect(
+    new Promise((resolve, reject) => {
+      const stream = createReadableRawVHDStream(100000, mockParser)
+      stream.on('error', reject)
+      const pipe = stream.pipe(createWriteStream('outputStream'))
+      pipe.on('finish', resolve)
+      pipe.on('error', reject)
+    })
+  ).rejects.toThrow('Received out of order blocks')
+})
+
+test('ReadableSparseVHDStream can handle a sparse file', async () => {
+  const blockSize = Math.pow(2, 16)
+  const blocks = [
+    {
+      offsetBytes: blockSize * 3,
+      data: Buffer.alloc(blockSize, 'azerzaerazeraze', 'ascii'),
+    },
+    {
+      offsetBytes: blockSize * 5,
+      data: Buffer.alloc(blockSize, 'gdfslkdfguer', 'ascii'),
+    },
+  ]
+  const fileSize = blockSize * 10
+  const stream = createReadableSparseVHDStream(
+    fileSize,
+    blockSize,
+    [100, 700],
+    blocks
+  )
+  const pipe = stream.pipe(createWriteStream('output.vhd'))
+  await fromEvent(pipe, 'finish')
+  await execa('vhd-util', ['check', '-t', '-i', '-n', 'output.vhd'])
+  await execa('qemu-img', [
+    'convert',
+    '-f',
+    'vpc',
+    '-O',
+    'raw',
+    'output.vhd',
+    'out1.raw',
+  ])
+  const out1 = await readFile('out1.raw')
+  const expected = Buffer.alloc(fileSize)
+  blocks.forEach(b => {
+    b.data.copy(expected, b.offsetBytes)
+  })
+  await expect(out1.slice(0, expected.length)).toEqual(expected)
+})

packages/vhd-lib/src/vhd.js

@@ -0,0 +1,631 @@
+import assert from 'assert'
+import getStream from 'get-stream'
+import { fromEvent } from 'promise-toolbox'
+
+import constantStream from './_constant-stream'
+import { fuFooter, fuHeader, checksumStruct, unpackField } from './_structs'
+import { set as mapSetBit, test as mapTestBit } from './_bitmap'
+import {
+  BLOCK_UNUSED,
+  DISK_TYPE_DIFFERENCING,
+  DISK_TYPE_DYNAMIC,
+  FILE_FORMAT_VERSION,
+  FOOTER_COOKIE,
+  FOOTER_SIZE,
+  HEADER_COOKIE,
+  HEADER_SIZE,
+  HEADER_VERSION,
+  PARENT_LOCATOR_ENTRIES,
+  PLATFORM_NONE,
+  PLATFORM_W2KU,
+  SECTOR_SIZE,
+} from './_constants'
+
+const VHD_UTIL_DEBUG = 0
+const debug = VHD_UTIL_DEBUG
+  ? str => console.log(`[vhd-merge]${str}`)
+  : () => null
+
+// ===================================================================
+//
+// Spec:
+// https://www.microsoft.com/en-us/download/details.aspx?id=23850
+//
+// C implementation:
+// https://github.com/rubiojr/vhd-util-convert
+//
+// ===================================================================
+
+const computeBatSize = entries =>
+  sectorsToBytes(sectorsRoundUpNoZero(entries * 4))
+
+// Sectors conversions.
+const sectorsRoundUpNoZero = bytes => Math.ceil(bytes / SECTOR_SIZE) || 1
+const sectorsToBytes = sectors => sectors * SECTOR_SIZE
+
+const assertChecksum = (name, buf, struct) => {
+  const actual = unpackField(struct.fields.checksum, buf)
+  const expected = checksumStruct(buf, struct)
+  if (actual !== expected) {
+    throw new Error(`invalid ${name} checksum ${actual}, expected ${expected}`)
+  }
+}
+
+// unused block as buffer containing a uint32BE
+const BUF_BLOCK_UNUSED = Buffer.allocUnsafe(4)
+BUF_BLOCK_UNUSED.writeUInt32BE(BLOCK_UNUSED, 0)
+
+// ===================================================================
+
+// Format:
+//
+// 1. Footer (512)
+// 2. Header (1024)
+// 3. Unordered entries
+//    - BAT (batSize @ header.tableOffset)
+//    - Blocks (@ blockOffset(i))
+//      - bitmap (blockBitmapSize)
+//      - data (header.blockSize)
+//    - Parent locators (parentLocatorSize(i) @ parentLocatorOffset(i))
+// 4. Footer (512 @ vhdSize - 512)
+//
+// Variables:
+//
+// - batSize = min(1, ceil(header.maxTableEntries * 4 / sectorSize)) * sectorSize
+// - blockBitmapSize = ceil(header.blockSize / sectorSize / 8 / sectorSize) * sectorSize
+// - blockOffset(i) = bat[i] * sectorSize
+// - nBlocks = ceil(footer.currentSize / header.blockSize)
+// - parentLocatorOffset(i) = header.parentLocatorEntry[i].platformDataOffset
+// - parentLocatorSize(i) = header.parentLocatorEntry[i].platformDataSpace * sectorSize
+// - sectorSize = 512
+
+export default class Vhd {
+  get batSize () {
+    return computeBatSize(this.header.maxTableEntries)
+  }
+
+  constructor (handler, path) {
+    this._handler = handler
+    this._path = path
+  }
+
+  // =================================================================
+  // Read functions.
+  // =================================================================
+
+  _readStream (start, n) {
+    return this._handler.createReadStream(this._path, {
+      start,
+      end: start + n - 1, // end is inclusive
+    })
+  }
+
+  _read (start, n) {
+    return this._readStream(start, n)
+      .then(getStream.buffer)
+      .then(buf => {
+        assert.equal(buf.length, n)
+        return buf
+      })
+  }
+
+  containsBlock (id) {
+    return this._getBatEntry(id) !== BLOCK_UNUSED
+  }
+
+  // Returns the first address after metadata. (In bytes)
+  getEndOfHeaders () {
+    const { header } = this
+
+    let end = FOOTER_SIZE + HEADER_SIZE
+
+    // Max(end, block allocation table end)
+    end = Math.max(end, header.tableOffset + this.batSize)
+
+    for (let i = 0; i < PARENT_LOCATOR_ENTRIES; i++) {
+      const entry = header.parentLocatorEntry[i]
+
+      if (entry.platformCode !== PLATFORM_NONE) {
+        end = Math.max(
+          end,
+          entry.platformDataOffset + sectorsToBytes(entry.platformDataSpace)
+        )
+      }
+    }
+
+    debug(`End of headers: ${end}.`)
+
+    return end
+  }
+
+  // Returns the first sector after data.
+  getEndOfData () {
+    let end = Math.ceil(this.getEndOfHeaders() / SECTOR_SIZE)
+
+    const fullBlockSize = this.sectorsOfBitmap + this.sectorsPerBlock
+    const { maxTableEntries } = this.header
+    for (let i = 0; i < maxTableEntries; i++) {
+      const blockAddr = this._getBatEntry(i)
+
+      if (blockAddr !== BLOCK_UNUSED) {
+        end = Math.max(end, blockAddr + fullBlockSize)
+      }
+    }
+
+    debug(`End of data: ${end}.`)
+
+    return sectorsToBytes(end)
+  }
+
+  // TODO: extract the checks into reusable functions:
+  // - better human reporting
+  // - auto repair if possible
+  async readHeaderAndFooter (checkSecondFooter = true) {
+    const buf = await this._read(0, FOOTER_SIZE + HEADER_SIZE)
+    const bufFooter = buf.slice(0, FOOTER_SIZE)
+    const bufHeader = buf.slice(FOOTER_SIZE)
+
+    assertChecksum('footer', bufFooter, fuFooter)
+    assertChecksum('header', bufHeader, fuHeader)
+
+    if (checkSecondFooter) {
+      const size = await this._handler.getSize(this._path)
+      assert(
+        bufFooter.equals(await this._read(size - FOOTER_SIZE, FOOTER_SIZE)),
+        'footer1 !== footer2'
+      )
+    }
+
+    const footer = (this.footer = fuFooter.unpack(bufFooter))
+    assert.strictEqual(footer.cookie, FOOTER_COOKIE, 'footer cookie')
+    assert.strictEqual(footer.dataOffset, FOOTER_SIZE)
+    assert.strictEqual(footer.fileFormatVersion, FILE_FORMAT_VERSION)
+    assert(footer.originalSize <= footer.currentSize)
+    assert(
+      footer.diskType === DISK_TYPE_DIFFERENCING ||
+        footer.diskType === DISK_TYPE_DYNAMIC
+    )
+
+    const header = (this.header = fuHeader.unpack(bufHeader))
+    assert.strictEqual(header.cookie, HEADER_COOKIE)
+    assert.strictEqual(header.dataOffset, undefined)
+    assert.strictEqual(header.headerVersion, HEADER_VERSION)
+    assert(header.maxTableEntries >= footer.currentSize / header.blockSize)
+    assert(Number.isInteger(Math.log2(header.blockSize / SECTOR_SIZE)))
+
+    // Compute the number of sectors in one block.
+    // Default: One block contains 4096 sectors of 512 bytes.
+    const sectorsPerBlock = (this.sectorsPerBlock =
+      header.blockSize / SECTOR_SIZE)
+
+    // Compute bitmap size in sectors.
+    // Default: 1.
+    const sectorsOfBitmap = (this.sectorsOfBitmap = sectorsRoundUpNoZero(
+      sectorsPerBlock >> 3
+    ))
+
+    // Full block size => data block size + bitmap size.
+    this.fullBlockSize = sectorsToBytes(sectorsPerBlock + sectorsOfBitmap)
+
+    // In bytes.
+    // Default: 512.
+    this.bitmapSize = sectorsToBytes(sectorsOfBitmap)
+  }
+
+  // Returns a buffer that contains the block allocation table of a vhd file.
+  async readBlockAllocationTable () {
+    const { header } = this
+    this.blockTable = await this._read(
+      header.tableOffset,
+      header.maxTableEntries * 4
+    )
+  }
+
+  // return the first sector (bitmap) of a block
+  _getBatEntry (block) {
+    return this.blockTable.readUInt32BE(block * 4)
+  }
+
+  _readBlock (blockId, onlyBitmap = false) {
+    const blockAddr = this._getBatEntry(blockId)
+    if (blockAddr === BLOCK_UNUSED) {
+      throw new Error(`no such block ${blockId}`)
+    }
+
+    return this._read(
+      sectorsToBytes(blockAddr),
+      onlyBitmap ? this.bitmapSize : this.fullBlockSize
+    ).then(
+      buf =>
+        onlyBitmap
+          ? { id: blockId, bitmap: buf }
+          : {
+              id: blockId,
+              bitmap: buf.slice(0, this.bitmapSize),
+              data: buf.slice(this.bitmapSize),
+              buffer: buf,
+            }
+    )
+  }
+
+  // get the identifiers and first sectors of the first and last block
+  // in the file
+  //
+  _getFirstAndLastBlocks () {
+    const n = this.header.maxTableEntries
+    const bat = this.blockTable
+    let i = 0
+    let j = 0
+    let first, firstSector, last, lastSector
+
+    // get first allocated block for initialization
+    while ((firstSector = bat.readUInt32BE(j)) === BLOCK_UNUSED) {
+      i += 1
+      j += 4
+
+      if (i === n) {
+        const error = new Error('no allocated block found')
+        error.noBlock = true
+        throw error
+      }
+    }
+    lastSector = firstSector
+    first = last = i
+
+    while (i < n) {
+      const sector = bat.readUInt32BE(j)
+      if (sector !== BLOCK_UNUSED) {
+        if (sector < firstSector) {
+          first = i
+          firstSector = sector
+        } else if (sector > lastSector) {
+          last = i
+          lastSector = sector
+        }
+      }
+
+      i += 1
+      j += 4
+    }
+
+    return { first, firstSector, last, lastSector }
+  }
+
+  // =================================================================
+  // Write functions.
+  // =================================================================
+
+  // Write a buffer/stream at a given position in a vhd file.
+  async _write (data, offset) {
+    debug(
+      `_write offset=${offset} size=${
+        Buffer.isBuffer(data) ? data.length : '???'
+      }`
+    )
+    // TODO: could probably be merged in remote handlers.
+    const stream = await this._handler.createOutputStream(this._path, {
+      flags: 'r+',
+      start: offset,
+    })
+    return Buffer.isBuffer(data)
+      ? new Promise((resolve, reject) => {
+          stream.on('error', reject)
+          stream.end(data, resolve)
+        })
+      : fromEvent(data.pipe(stream), 'finish')
+  }
+
+  async _freeFirstBlockSpace (spaceNeededBytes) {
+    try {
+      const { first, firstSector, lastSector } = this._getFirstAndLastBlocks()
+      const tableOffset = this.header.tableOffset
+      const { batSize } = this
+      const newMinSector = Math.ceil(
+        (tableOffset + batSize + spaceNeededBytes) / SECTOR_SIZE
+      )
+      if (
+        tableOffset + batSize + spaceNeededBytes >=
+        sectorsToBytes(firstSector)
+      ) {
+        const { fullBlockSize } = this
+        const newFirstSector = Math.max(
+          lastSector + fullBlockSize / SECTOR_SIZE,
+          newMinSector
+        )
+        debug(
+          `freeFirstBlockSpace: move first block ${firstSector} -> ${newFirstSector}`
+        )
+        // copy the first block at the end
+        const stream = await this._readStream(
+          sectorsToBytes(firstSector),
+          fullBlockSize
+        )
+        await this._write(stream, sectorsToBytes(newFirstSector))
+        await this._setBatEntry(first, newFirstSector)
+        await this.writeFooter(true)
+        spaceNeededBytes -= this.fullBlockSize
+        if (spaceNeededBytes > 0) {
+          return this._freeFirstBlockSpace(spaceNeededBytes)
+        }
+      }
+    } catch (e) {
+      if (!e.noBlock) {
+        throw e
+      }
+    }
+  }
+
+  async ensureBatSize (entries) {
+    const { header } = this
+    const prevMaxTableEntries = header.maxTableEntries
+    if (prevMaxTableEntries >= entries) {
+      return
+    }
+
+    const newBatSize = computeBatSize(entries)
+    await this._freeFirstBlockSpace(newBatSize - this.batSize)
+    const maxTableEntries = (header.maxTableEntries = entries)
+    const prevBat = this.blockTable
+    const bat = (this.blockTable = Buffer.allocUnsafe(newBatSize))
+    prevBat.copy(bat)
+    bat.fill(BUF_BLOCK_UNUSED, prevMaxTableEntries * 4)
+    debug(
+      `ensureBatSize: extend BAT ${prevMaxTableEntries} -> ${maxTableEntries}`
+    )
+    await this._write(
+      constantStream(BUF_BLOCK_UNUSED, maxTableEntries - prevMaxTableEntries),
+      header.tableOffset + prevBat.length
+    )
+    await this.writeHeader()
+  }
+
+  // set the first sector (bitmap) of a block
+  _setBatEntry (block, blockSector) {
+    const i = block * 4
+    const { blockTable } = this
+
+    blockTable.writeUInt32BE(blockSector, i)
+
+    return this._write(blockTable.slice(i, i + 4), this.header.tableOffset + i)
+  }
+
+  // Make a new empty block at vhd end.
+  // Update block allocation table in context and in file.
+  async createBlock (blockId) {
+    const blockAddr = Math.ceil(this.getEndOfData() / SECTOR_SIZE)
+
+    debug(`create block ${blockId} at ${blockAddr}`)
+
+    await Promise.all([
+      // Write an empty block and addr in vhd file.
+      this._write(
+        constantStream([0], this.fullBlockSize),
+        sectorsToBytes(blockAddr)
+      ),
+
+      this._setBatEntry(blockId, blockAddr),
+    ])
+
+    return blockAddr
+  }
+
+  // Write a bitmap at a block address.
+  async writeBlockBitmap (blockAddr, bitmap) {
+    const { bitmapSize } = this
+
+    if (bitmap.length !== bitmapSize) {
+      throw new Error(`Bitmap length is not correct ! ${bitmap.length}`)
+    }
+
+    const offset = sectorsToBytes(blockAddr)
+
+    debug(
+      `Write bitmap at: ${offset}. (size=${bitmapSize}, data=${bitmap.toString(
+        'hex'
+      )})`
+    )
+    await this._write(bitmap, sectorsToBytes(blockAddr))
+  }
+
+  async writeEntireBlock (block) {
+    let blockAddr = this._getBatEntry(block.id)
+
+    if (blockAddr === BLOCK_UNUSED) {
+      blockAddr = await this.createBlock(block.id)
+    }
+    await this._write(block.buffer, sectorsToBytes(blockAddr))
+  }
+
+  async writeBlockSectors (block, beginSectorId, endSectorId, parentBitmap) {
+    let blockAddr = this._getBatEntry(block.id)
+
+    if (blockAddr === BLOCK_UNUSED) {
+      blockAddr = await this.createBlock(block.id)
+      parentBitmap = Buffer.alloc(this.bitmapSize, 0)
+    } else if (parentBitmap === undefined) {
+      parentBitmap = (await this._readBlock(block.id, true)).bitmap
+    }
+
+    const offset = blockAddr + this.sectorsOfBitmap + beginSectorId
+
+    debug(
+      `writeBlockSectors at ${offset} block=${
+        block.id
+      }, sectors=${beginSectorId}...${endSectorId}`
+    )
+
+    for (let i = beginSectorId; i < endSectorId; ++i) {
+      mapSetBit(parentBitmap, i)
+    }
+
+    await this.writeBlockBitmap(blockAddr, parentBitmap)
+    await this._write(
+      block.data.slice(
+        sectorsToBytes(beginSectorId),
+        sectorsToBytes(endSectorId)
+      ),
+      sectorsToBytes(offset)
+    )
+  }
+
+  async coalesceBlock (child, blockId) {
+    const block = await child._readBlock(blockId)
+    const { bitmap, data } = block
+
+    debug(`coalesceBlock block=${blockId}`)
+
+    // For each sector of block data...
+    const { sectorsPerBlock } = child
+    for (let i = 0; i < sectorsPerBlock; i++) {
+      // If no changes on one sector, skip.
+      if (!mapTestBit(bitmap, i)) {
+        continue
+      }
+      let parentBitmap = null
+      let endSector = i + 1
+
+      // Count changed sectors.
+      while (endSector < sectorsPerBlock && mapTestBit(bitmap, endSector)) {
+        ++endSector
+      }
+
+      // Write n sectors into parent.
+      debug(`coalesceBlock: write sectors=${i}...${endSector}`)
+
+      const isFullBlock = i === 0 && endSector === sectorsPerBlock
+      if (isFullBlock) {
+        await this.writeEntireBlock(block)
+      } else {
+        if (parentBitmap === null) {
+          parentBitmap = (await this._readBlock(blockId, true)).bitmap
+        }
+        await this.writeBlockSectors(block, i, endSector, parentBitmap)
+      }
+
+      i = endSector
+    }
+
+    // Return the merged data size
+    return data.length
+  }
+
+  // Write a context footer. (At the end and beginning of a vhd file.)
+  async writeFooter (onlyEndFooter = false) {
+    const { footer } = this
+
+    const rawFooter = fuFooter.pack(footer)
+    const eof = await this._handler.getSize(this._path)
+    // sometimes the file is longer than anticipated, we still need to put the footer at the end
+    const offset = Math.max(this.getEndOfData(), eof - rawFooter.length)
+
+    footer.checksum = checksumStruct(rawFooter, fuFooter)
+    debug(
+      `Write footer at: ${offset} (checksum=${
+        footer.checksum
+      }). (data=${rawFooter.toString('hex')})`
+    )
+    if (!onlyEndFooter) {
+      await this._write(rawFooter, 0)
+    }
+    await this._write(rawFooter, offset)
+  }
+
+  writeHeader () {
+    const { header } = this
+    const rawHeader = fuHeader.pack(header)
+    header.checksum = checksumStruct(rawHeader, fuHeader)
+    const offset = FOOTER_SIZE
+    debug(
+      `Write header at: ${offset} (checksum=${
+        header.checksum
+      }). (data=${rawHeader.toString('hex')})`
+    )
+    return this._write(rawHeader, offset)
+  }
+
+  async writeData (offsetSectors, buffer) {
+    const bufferSizeSectors = Math.ceil(buffer.length / SECTOR_SIZE)
+    const startBlock = Math.floor(offsetSectors / this.sectorsPerBlock)
+    const endBufferSectors = offsetSectors + bufferSizeSectors
+    const lastBlock = Math.ceil(endBufferSectors / this.sectorsPerBlock) - 1
+    await this.ensureBatSize(lastBlock)
+    const blockSizeBytes = this.sectorsPerBlock * SECTOR_SIZE
+    const coversWholeBlock = (offsetInBlockSectors, endInBlockSectors) =>
+      offsetInBlockSectors === 0 && endInBlockSectors === this.sectorsPerBlock
+
+    for (
+      let currentBlock = startBlock;
+      currentBlock <= lastBlock;
+      currentBlock++
+    ) {
+      const offsetInBlockSectors = Math.max(
+        0,
+        offsetSectors - currentBlock * this.sectorsPerBlock
+      )
+      const endInBlockSectors = Math.min(
+        endBufferSectors - currentBlock * this.sectorsPerBlock,
+        this.sectorsPerBlock
+      )
+      const startInBuffer = Math.max(
+        0,
+        (currentBlock * this.sectorsPerBlock - offsetSectors) * SECTOR_SIZE
+      )
+      const endInBuffer = Math.min(
+        ((currentBlock + 1) * this.sectorsPerBlock - offsetSectors) *
+          SECTOR_SIZE,
+        buffer.length
+      )
+      let inputBuffer
+      if (coversWholeBlock(offsetInBlockSectors, endInBlockSectors)) {
+        inputBuffer = buffer.slice(startInBuffer, endInBuffer)
+      } else {
+        inputBuffer = Buffer.alloc(blockSizeBytes, 0)
+        buffer.copy(
+          inputBuffer,
+          offsetInBlockSectors * SECTOR_SIZE,
+          startInBuffer,
+          endInBuffer
+        )
+      }
+      await this.writeBlockSectors(
+        { id: currentBlock, data: inputBuffer },
+        offsetInBlockSectors,
+        endInBlockSectors
+      )
+    }
+    await this.writeFooter()
+  }
+
+  async ensureSpaceForParentLocators (neededSectors) {
+    const firstLocatorOffset = FOOTER_SIZE + HEADER_SIZE
+    const currentSpace =
+      Math.floor(this.header.tableOffset / SECTOR_SIZE) -
+      firstLocatorOffset / SECTOR_SIZE
+    if (currentSpace < neededSectors) {
+      const deltaSectors = neededSectors - currentSpace
+      await this._freeFirstBlockSpace(sectorsToBytes(deltaSectors))
+      this.header.tableOffset += sectorsToBytes(deltaSectors)
+      await this._write(this.blockTable, this.header.tableOffset)
+    }
+    return firstLocatorOffset
+  }
+
+  async setUniqueParentLocator (fileNameString) {
+    const { header } = this
+    header.parentLocatorEntry[0].platformCode = PLATFORM_W2KU
+    const encodedFilename = Buffer.from(fileNameString, 'utf16le')
+    const dataSpaceSectors = Math.ceil(encodedFilename.length / SECTOR_SIZE)
+    const position = await this.ensureSpaceForParentLocators(dataSpaceSectors)
+    await this._write(encodedFilename, position)
+    header.parentLocatorEntry[0].platformDataSpace =
+      dataSpaceSectors * SECTOR_SIZE
+    header.parentLocatorEntry[0].platformDataLength = encodedFilename.length
+    header.parentLocatorEntry[0].platformDataOffset = position
+    for (let i = 1; i < 8; i++) {
+      header.parentLocatorEntry[i].platformCode = PLATFORM_NONE
+      header.parentLocatorEntry[i].platformDataSpace = 0
+      header.parentLocatorEntry[i].platformDataLength = 0
+      header.parentLocatorEntry[i].platformDataOffset = 0
+    }
+  }
+}

packages/xen-api/package.json

@@ -1,6 +1,6 @@
 {
   "name": "xen-api",
-  "version": "0.16.6",
+  "version": "0.16.9",
   "license": "ISC",
   "description": "Connector to the Xen API",
   "keywords": [

packages/xen-api/src/index.js

@@ -143,7 +143,9 @@ export const isOpaqueRef = value =>
 
 const RE_READ_ONLY_METHOD = /^[^.]+\.get_/
 const isReadOnlyCall = (method, args) =>
-  args.length === 1 && isOpaqueRef(args[0]) && RE_READ_ONLY_METHOD.test(method)
+  args.length === 1 &&
+  typeof args[0] === 'string' &&
+  RE_READ_ONLY_METHOD.test(method)
 
 // Prepare values before passing them to the XenAPI:
 //
@@ -180,20 +182,20 @@ const EMPTY_ARRAY = freezeObject([])
 
 // -------------------------------------------------------------------
 
-const getTaskResult = (task, onSuccess, onFailure) => {
+const getTaskResult = task => {
   const { status } = task
   if (status === 'cancelled') {
-    return [onFailure(new Cancel('task canceled'))]
+    return Promise.reject(new Cancel('task canceled'))
   }
   if (status === 'failure') {
-    return [onFailure(wrapError(task.error_info))]
+    return Promise.reject(wrapError(task.error_info))
   }
   if (status === 'success') {
     // the result might be:
     // - empty string
     // - an opaque reference
     // - an XML-RPC value
-    return [onSuccess(task.result)]
+    return Promise.resolve(task.result)
   }
 }
 
@@ -244,7 +246,7 @@ export class Xapi extends EventEmitter {
       objects.getKey = getKey
 
       this._objectsByRefs = createObject(null)
-      this._objectsByRefs['OpaqueRef:NULL'] = null
+      this._objectsByRefs['OpaqueRef:NULL'] = undefined
 
       this._taskWatchers = Object.create(null)
 
@@ -407,15 +409,15 @@ export class Xapi extends EventEmitter {
     return this._readOnly && !isReadOnlyCall(method, args)
       ? Promise.reject(new Error(`cannot call ${method}() in read only mode`))
       : this._sessionCall(`Async.${method}`, args).then(taskRef => {
-        $cancelToken.promise.then(() => {
-          // TODO: do not trigger if the task is already over
-          this._sessionCall('task.cancel', [taskRef]).catch(noop)
-        })
+          $cancelToken.promise.then(() => {
+            // TODO: do not trigger if the task is already over
+            this._sessionCall('task.cancel', [taskRef]).catch(noop)
+          })
 
-        return this.watchTask(taskRef)::lastly(() => {
-          this._sessionCall('task.destroy', [taskRef]).catch(noop)
+          return this.watchTask(taskRef)::lastly(() => {
+            this._sessionCall('task.destroy', [taskRef]).catch(noop)
+          })
         })
-      })
   }
 
   // create a task and automatically destroy it when settled
@@ -441,16 +443,18 @@ export class Xapi extends EventEmitter {
   // this lib), UUID (unique identifier that some objects have) or
   // opaque reference (internal to XAPI).
   getObject (idOrUuidOrRef, defaultValue) {
-    const object =
-      typeof idOrUuidOrRef === 'string'
-        ? this._objects.all[idOrUuidOrRef] || this._objectsByRefs[idOrUuidOrRef]
-        : this._objects.all[idOrUuidOrRef.$id]
+    if (typeof idOrUuidOrRef === 'object') {
+      idOrUuidOrRef = idOrUuidOrRef.$id
+    }
 
-    if (object) return object
+    const object =
+      this._objects.all[idOrUuidOrRef] || this._objectsByRefs[idOrUuidOrRef]
+
+    if (object !== undefined) return object
 
     if (arguments.length > 1) return defaultValue
 
-    throw new Error('there is not object can be matched to ' + idOrUuidOrRef)
+    throw new Error('no object with UUID or opaque ref: ' + idOrUuidOrRef)
   }
 
   // Returns the object for a given opaque reference (internal to
@@ -458,11 +462,11 @@ export class Xapi extends EventEmitter {
   getObjectByRef (ref, defaultValue) {
     const object = this._objectsByRefs[ref]
 
-    if (object) return object
+    if (object !== undefined) return object
 
     if (arguments.length > 1) return defaultValue
 
-    throw new Error('there is no object with the ref ' + ref)
+    throw new Error('no object with opaque ref: ' + ref)
   }
 
   // Returns the object for a given UUID (unique identifier that some
@@ -475,7 +479,7 @@ export class Xapi extends EventEmitter {
 
     if (arguments.length > 1) return defaultValue
 
-    throw new Error('there is no object with the UUID ' + uuid)
+    throw new Error('no object with UUID: ' + uuid)
   }
 
   getRecord (type, ref) {
@@ -575,31 +579,31 @@ export class Xapi extends EventEmitter {
         // redirection before consuming body
         const promise = isStream
           ? doRequest({
-            body: '',
+              body: '',
 
-            // omit task_id because this request will fail on purpose
-            query: 'task_id' in query ? omit(query, 'task_id') : query,
+              // omit task_id because this request will fail on purpose
+              query: 'task_id' in query ? omit(query, 'task_id') : query,
 
-            maxRedirects: 0,
-          }).then(
-            response => {
-              response.req.abort()
-              return doRequest()
-            },
-            error => {
-              let response
-              if (error != null && (response = error.response) != null) {
+              maxRedirects: 0,
+            }).then(
+              response => {
                 response.req.abort()
+                return doRequest()
+              },
+              error => {
+                let response
+                if (error != null && (response = error.response) != null) {
+                  response.req.abort()
 
-                const { headers: { location }, statusCode } = response
-                if (statusCode === 302 && location !== undefined) {
-                  return doRequest(location)
+                  const { headers: { location }, statusCode } = response
+                  if (statusCode === 302 && location !== undefined) {
+                    return doRequest(location)
+                  }
                 }
-              }
 
-              throw error
-            }
-          )
+                throw error
+              }
+            )
           : doRequest()
 
         return promise.then(response => {
@@ -638,11 +642,11 @@ export class Xapi extends EventEmitter {
     let watcher = watchers[ref]
     if (watcher === undefined) {
       // sync check if the task is already settled
-      const task = this.objects.all[ref]
+      const task = this._objectsByRefs[ref]
       if (task !== undefined) {
-        const result = getTaskResult(task, Promise.resolve, Promise.reject)
-        if (result) {
-          return result[0]
+        const result = getTaskResult(task)
+        if (result !== undefined) {
+          return result
         }
       }
 
@@ -789,11 +793,12 @@ export class Xapi extends EventEmitter {
 
       const taskWatchers = this._taskWatchers
       const taskWatcher = taskWatchers[ref]
-      if (
-        taskWatcher !== undefined &&
-        getTaskResult(object, taskWatcher.resolve, taskWatcher.reject)
-      ) {
-        delete taskWatchers[ref]
+      if (taskWatcher !== undefined) {
+        const result = getTaskResult(object)
+        if (result !== undefined) {
+          taskWatcher.resolve(result)
+          delete taskWatchers[ref]
+        }
       }
     }
   }
@@ -813,7 +818,10 @@ export class Xapi extends EventEmitter {
     const taskWatchers = this._taskWatchers
     const taskWatcher = taskWatchers[ref]
     if (taskWatcher !== undefined) {
-      taskWatcher.reject(new Error('task has been destroyed before completion'))
+      const error = new Error('task has been destroyed before completion')
+      error.task = object
+      error.taskRef = ref
+      taskWatcher.reject(error)
       delete taskWatchers[ref]
     }
   }

packages/xo-cli/package.json

@@ -28,7 +28,7 @@
     "node": ">=6"
   },
   "dependencies": {
-    "@babel/polyfill": "7.0.0-beta.40",
+    "@babel/polyfill": "7.0.0-beta.44",
     "bluebird": "^3.5.1",
     "chalk": "^2.2.0",
     "event-to-promise": "^0.8.0",
@@ -49,10 +49,10 @@
     "xo-lib": "^0.9.0"
   },
   "devDependencies": {
-    "@babel/cli": "7.0.0-beta.40",
-    "@babel/core": "7.0.0-beta.40",
-    "@babel/preset-env": "7.0.0-beta.40",
-    "@babel/preset-flow": "7.0.0-beta.40",
+    "@babel/cli": "7.0.0-beta.44",
+    "@babel/core": "7.0.0-beta.44",
+    "@babel/preset-env": "7.0.0-beta.44",
+    "@babel/preset-flow": "7.0.0-beta.44",
     "babel-plugin-lodash": "^3.3.2",
     "cross-env": "^5.1.3",
     "rimraf": "^2.6.2"

packages/xo-remote-parser/package.json

@@ -40,7 +40,7 @@
     "dev": "cross-env NODE_ENV=development babel --watch --source-maps --out-dir=dist/ src/",
     "prebuild": "rimraf dist/",
     "predev": "yarn run prebuild",
-    "prepublishOnly": "yarn run build"
+    "prepare": "yarn run build"
   },
   "babel": {
     "plugins": [

packages/xo-server-auth-saml/package.json

@@ -1,6 +1,6 @@
 {
   "name": "xo-server-auth-saml",
-  "version": "0.5.0",
+  "version": "0.5.2",
   "license": "AGPL-3.0",
   "description": "SAML authentication plugin for XO-Server",
   "keywords": [

packages/xo-server-auth-saml/src/index.js

@@ -3,22 +3,32 @@ import { Strategy } from 'passport-saml'
 // ===================================================================
 
 export const configurationSchema = {
+  description:
+    'Important: When registering your instance to your identity provider, you must configure its callback URL to `https://<xo.company.net>/signin/saml/callback`!',
   type: 'object',
   properties: {
     cert: {
+      title: 'Certificate',
+      description: "Copy/paste the identity provider's certificate",
       type: 'string',
     },
     entryPoint: {
+      title: 'Entry point',
+      description: 'Entry point of the identity provider',
       type: 'string',
     },
     issuer: {
+      title: 'Issuer',
+      description: 'Issuer string to supply to the identity provider',
       type: 'string',
     },
     usernameField: {
+      title: 'Username field',
+      description: 'Field to use as the XO username',
       type: 'string',
     },
   },
-  required: ['cert', 'entryPoint', 'issuer'],
+  required: ['cert', 'entryPoint', 'issuer', 'usernameField'],
 }
 
 // ===================================================================
@@ -42,6 +52,7 @@ class AuthSamlXoPlugin {
       new Strategy(this._conf, async (profile, done) => {
         const name = profile[this._usernameField]
         if (!name) {
+          console.warn('xo-server-auth-saml:', profile)
           done('no name found for this user')
           return
         }

packages/xo-server-backup-reports/package.json

@@ -1,6 +1,6 @@
 {
   "name": "xo-server-backup-reports",
-  "version": "0.10.0",
+  "version": "0.11.0",
   "license": "AGPL-3.0",
   "description": "Backup reports plugin for XO-Server",
   "keywords": [
@@ -35,6 +35,7 @@
     "node": ">=4"
   },
   "dependencies": {
+    "babel-runtime": "^6.26.0",
     "human-format": "^0.10.0",
     "lodash": "^4.13.1",
     "moment-timezone": "^0.5.13"
@@ -42,6 +43,7 @@
   "devDependencies": {
     "babel-cli": "^6.24.1",
     "babel-plugin-lodash": "^3.3.2",
+    "babel-plugin-transform-runtime": "^6.23.0",
     "babel-preset-env": "^1.5.2",
     "cross-env": "^5.1.3",
     "rimraf": "^2.6.1"
@@ -56,7 +58,8 @@
   },
   "babel": {
     "plugins": [
-      "lodash"
+      "lodash",
+      "transform-runtime"
     ],
     "presets": [
       [

packages/xo-server-backup-reports/src/index.js

@@ -1,6 +1,6 @@
 import humanFormat from 'human-format'
 import moment from 'moment-timezone'
-import { forEach, startCase } from 'lodash'
+import { find, forEach, get, startCase } from 'lodash'
 
 import pkg from '../package'
 
@@ -41,9 +41,9 @@ const DATE_FORMAT = 'dddd, MMMM Do YYYY, h:mm:ss a'
 const createDateFormater = timezone =>
   timezone !== undefined
     ? timestamp =>
-      moment(timestamp)
-        .tz(timezone)
-        .format(DATE_FORMAT)
+        moment(timestamp)
+          .tz(timezone)
+          .format(DATE_FORMAT)
     : timestamp => moment(timestamp).format(DATE_FORMAT)
 
 const formatDuration = milliseconds => moment.duration(milliseconds).humanize()
@@ -66,6 +66,7 @@ const logError = e => {
   console.error('backup report error:', e)
 }
 
+const NO_VMS_MATCH_THIS_PATTERN = 'no VMs match this pattern'
 const NO_SUCH_OBJECT_ERROR = 'no such object'
 const UNHEALTHY_VDI_CHAIN_ERROR = 'unhealthy VDI chain'
 const UNHEALTHY_VDI_CHAIN_MESSAGE =
@@ -94,14 +95,351 @@ class BackupReportsXoPlugin {
     this._xo.removeListener('job:terminated', this._report)
   }
 
-  _wrapper (status) {
-    return new Promise(resolve => resolve(this._listener(status))).catch(
-      logError
-    )
+  _wrapper (status, job, schedule) {
+    return new Promise(resolve =>
+      resolve(
+        job.type === 'backup'
+          ? this._backupNgListener(status, job, schedule)
+          : this._listener(status, job, schedule)
+      )
+    ).catch(logError)
+  }
+
+  async _backupNgListener (runJobId, _, { timezone }) {
+    const xo = this._xo
+    const logs = await xo.getBackupNgLogs(runJobId)
+    const jobLog = logs['roots'][0]
+    const vmsTaskLog = logs[jobLog.id]
+
+    const { reportWhen, mode } = jobLog.data || {}
+    if (reportWhen === 'never') {
+      return
+    }
+
+    const formatDate = createDateFormater(timezone)
+    const jobName = (await xo.getJob(jobLog.jobId, 'backup')).name
+
+    if (jobLog.error !== undefined) {
+      const [globalStatus, icon] =
+        jobLog.error.message === NO_VMS_MATCH_THIS_PATTERN
+          ? ['Skipped', ICON_SKIPPED]
+          : ['Failure', ICON_FAILURE]
+      let markdown = [
+        `##  Global status: ${globalStatus}`,
+        '',
+        `- **mode**: ${mode}`,
+        `- **Start time**: ${formatDate(jobLog.start)}`,
+        `- **End time**: ${formatDate(jobLog.end)}`,
+        `- **Duration**: ${formatDuration(jobLog.duration)}`,
+        `- **Error**: ${jobLog.error.message}`,
+        '---',
+        '',
+        `*${pkg.name} v${pkg.version}*`,
+      ]
+
+      markdown = markdown.join('\n')
+      return this._sendReport({
+        subject: `[Xen Orchestra] ${globalStatus} − Backup report for ${jobName} ${icon}`,
+        markdown,
+        nagiosStatus: 2,
+        nagiosMarkdown: `[Xen Orchestra] [${globalStatus}] Backup report for ${jobName} - Error : ${
+          jobLog.error.message
+        }`,
+      })
+    }
+
+    const failedVmsText = []
+    const skippedVmsText = []
+    const successfulVmsText = []
+    const nagiosText = []
+
+    let globalMergeSize = 0
+    let globalTransferSize = 0
+    let nFailures = 0
+    let nSkipped = 0
+
+    for (const vmTaskLog of vmsTaskLog || []) {
+      const vmTaskStatus = vmTaskLog.status
+      if (vmTaskStatus === 'success' && reportWhen === 'failure') {
+        return
+      }
+
+      const vmId = vmTaskLog.data.id
+      let vm
+      try {
+        vm = xo.getObject(vmId)
+      } catch (e) {}
+      const text = [
+        `### ${vm !== undefined ? vm.name_label : 'VM not found'}`,
+        '',
+        `- **UUID**: ${vm !== undefined ? vm.uuid : vmId}`,
+        `- **Start time**: ${formatDate(vmTaskLog.start)}`,
+        `- **End time**: ${formatDate(vmTaskLog.end)}`,
+        `- **Duration**: ${formatDuration(vmTaskLog.duration)}`,
+      ]
+
+      const failedSubTasks = []
+      const operationsText = []
+      const srsText = []
+      const remotesText = []
+      for (const subTaskLog of logs[vmTaskLog.taskId] || []) {
+        const { data, status, result, message } = subTaskLog
+        const icon =
+          subTaskLog.status === 'success' ? ICON_SUCCESS : ICON_FAILURE
+        const errorMessage = `  **Error**: ${get(result, 'message')}`
+
+        if (message === 'snapshot') {
+          operationsText.push(`- **Snapshot** ${icon}`)
+          if (status === 'failure') {
+            failedSubTasks.push('Snapshot')
+            operationsText.push('', errorMessage)
+          }
+        } else if (data.type === 'remote') {
+          const remoteId = data.id
+          const remote = await xo.getRemote(remoteId).catch(() => {})
+          remotesText.push(
+            `- **${
+              remote !== undefined ? remote.name : `Remote Not found`
+            }** (${remoteId}) ${icon}`
+          )
+          if (status === 'failure') {
+            failedSubTasks.push(remote !== undefined ? remote.name : remoteId)
+            remotesText.push('', errorMessage)
+          }
+        } else {
+          const srId = data.id
+          let sr
+          try {
+            sr = xo.getObject(srId)
+          } catch (e) {}
+          const [srName, srUuid] =
+            sr !== undefined ? [sr.name_label, sr.uuid] : [`SR Not found`, srId]
+          srsText.push(`- **${srName}** (${srUuid}) ${icon}`)
+          if (status === 'failure') {
+            failedSubTasks.push(sr !== undefined ? sr.name_label : srId)
+            srsText.push('', errorMessage)
+          }
+        }
+      }
+
+      if (operationsText.length !== 0) {
+        operationsText.unshift(`#### Operations`, '')
+      }
+      if (srsText.length !== 0) {
+        srsText.unshift(`#### SRs`, '')
+      }
+      if (remotesText.length !== 0) {
+        remotesText.unshift(`#### remotes`, '')
+      }
+      const subText = [...operationsText, '', ...srsText, '', ...remotesText]
+      const result = vmTaskLog.result
+      if (vmTaskStatus === 'failure' && result !== undefined) {
+        const { message } = result
+        if (isSkippedError(result)) {
+          ++nSkipped
+          skippedVmsText.push(
+            ...text,
+            `- **Reason**: ${
+              message === UNHEALTHY_VDI_CHAIN_ERROR
+                ? UNHEALTHY_VDI_CHAIN_MESSAGE
+                : message
+            }`,
+            ''
+          )
+          nagiosText.push(
+            `[(Skipped) ${
+              vm !== undefined ? vm.name_label : 'undefined'
+            } : ${message} ]`
+          )
+        } else {
+          ++nFailures
+          failedVmsText.push(...text, `- **Error**: ${message}`, '')
+
+          nagiosText.push(
+            `[(Failed) ${
+              vm !== undefined ? vm.name_label : 'undefined'
+            } : ${message} ]`
+          )
+        }
+      } else {
+        let transferSize, transferDuration, mergeSize, mergeDuration
+
+        forEach(logs[vmTaskLog.taskId], ({ taskId }) => {
+          if (transferSize !== undefined) {
+            return false
+          }
+
+          const transferTask = find(logs[taskId], { message: 'transfer' })
+          if (transferTask !== undefined) {
+            transferSize = transferTask.result.size
+            transferDuration = transferTask.end - transferTask.start
+          }
+
+          const mergeTask = find(logs[taskId], { message: 'merge' })
+          if (mergeTask !== undefined) {
+            mergeSize = mergeTask.result.size
+            mergeDuration = mergeTask.end - mergeTask.start
+          }
+        })
+        if (transferSize !== undefined) {
+          globalTransferSize += transferSize
+          text.push(
+            `- **Transfer size**: ${formatSize(transferSize)}`,
+            `- **Transfer speed**: ${formatSpeed(
+              transferSize,
+              transferDuration
+            )}`
+          )
+        }
+        if (mergeSize !== undefined) {
+          globalMergeSize += mergeSize
+          text.push(
+            `- **Merge size**: ${formatSize(mergeSize)}`,
+            `- **Merge speed**: ${formatSpeed(mergeSize, mergeDuration)}`
+          )
+        }
+        if (vmTaskStatus === 'failure') {
+          ++nFailures
+          failedVmsText.push(...text, '', '', ...subText, '')
+          nagiosText.push(
+            `[(Failed) ${
+              vm !== undefined ? vm.name_label : 'undefined'
+            }: (failed)[${failedSubTasks.toString()}]]`
+          )
+        } else {
+          successfulVmsText.push(...text, '', '', ...subText, '')
+        }
+      }
+    }
+    const globalSuccess = nFailures === 0 && nSkipped === 0
+    if (reportWhen === 'failure' && globalSuccess) {
+      return
+    }
+
+    const nVms = vmsTaskLog.length
+    const nSuccesses = nVms - nFailures - nSkipped
+    const globalStatus = globalSuccess
+      ? `Success`
+      : nFailures !== 0 ? `Failure` : `Skipped`
+    let markdown = [
+      `##  Global status: ${globalStatus}`,
+      '',
+      `- **mode**: ${mode}`,
+      `- **Start time**: ${formatDate(jobLog.start)}`,
+      `- **End time**: ${formatDate(jobLog.end)}`,
+      `- **Duration**: ${formatDuration(jobLog.duration)}`,
+      `- **Successes**: ${nSuccesses} / ${nVms}`,
+    ]
+
+    if (globalTransferSize !== 0) {
+      markdown.push(`- **Transfer size**: ${formatSize(globalTransferSize)}`)
+    }
+    if (globalMergeSize !== 0) {
+      markdown.push(`- **Merge size**: ${formatSize(globalMergeSize)}`)
+    }
+    markdown.push('')
+
+    if (nFailures !== 0) {
+      markdown.push(
+        '---',
+        '',
+        `## ${nFailures} Failure${nFailures === 1 ? '' : 's'}`,
+        '',
+        ...failedVmsText
+      )
+    }
+
+    if (nSkipped !== 0) {
+      markdown.push('---', '', `## ${nSkipped} Skipped`, '', ...skippedVmsText)
+    }
+
+    if (nSuccesses !== 0 && reportWhen !== 'failure') {
+      markdown.push(
+        '---',
+        '',
+        `## ${nSuccesses} Success${nSuccesses === 1 ? '' : 'es'}`,
+        '',
+        ...successfulVmsText
+      )
+    }
+
+    markdown.push('---', '', `*${pkg.name} v${pkg.version}*`)
+    markdown = markdown.join('\n')
+    return this._sendReport({
+      markdown,
+      subject: `[Xen Orchestra] ${globalStatus} − Backup report for ${jobName} ${
+        globalSuccess
+          ? ICON_SUCCESS
+          : nFailures !== 0 ? ICON_FAILURE : ICON_SKIPPED
+      }`,
+      nagiosStatus: globalSuccess ? 0 : 2,
+      nagiosMarkdown: globalSuccess
+        ? `[Xen Orchestra] [Success] Backup report for ${jobName}`
+        : `[Xen Orchestra] [${
+            nFailures !== 0 ? 'Failure' : 'Skipped'
+          }] Backup report for ${jobName} - VMs : ${nagiosText.join(' ')}`,
+    })
+  }
+
+  _sendReport ({ markdown, subject, nagiosStatus, nagiosMarkdown }) {
+    const xo = this._xo
+    return Promise.all([
+      xo.sendEmail !== undefined &&
+        xo.sendEmail({
+          to: this._mailsReceivers,
+          subject,
+          markdown,
+        }),
+      xo.sendToXmppClient !== undefined &&
+        xo.sendToXmppClient({
+          to: this._xmppReceivers,
+          message: markdown,
+        }),
+      xo.sendSlackMessage !== undefined &&
+        xo.sendSlackMessage({
+          message: markdown,
+        }),
+      xo.sendPassiveCheck !== undefined &&
+        xo.sendPassiveCheck({
+          nagiosStatus,
+          message: nagiosMarkdown,
+        }),
+    ])
   }
 
   _listener (status) {
-    const { calls } = status
+    const { calls, timezone, error } = status
+    const formatDate = createDateFormater(timezone)
+
+    if (status.error !== undefined) {
+      const [globalStatus, icon] =
+        error.message === NO_VMS_MATCH_THIS_PATTERN
+          ? ['Skipped', ICON_SKIPPED]
+          : ['Failure', ICON_FAILURE]
+
+      let markdown = [
+        `##  Global status: ${globalStatus}`,
+        '',
+        `- **Start time**: ${formatDate(status.start)}`,
+        `- **End time**: ${formatDate(status.end)}`,
+        `- **Duration**: ${formatDuration(status.end - status.start)}`,
+        `- **Error**: ${error.message}`,
+        '---',
+        '',
+        `*${pkg.name} v${pkg.version}*`,
+      ]
+
+      markdown = markdown.join('\n')
+      return this._sendReport({
+        subject: `[Xen Orchestra] ${globalStatus} ${icon}`,
+        markdown,
+        nagiosStatus: 2,
+        nagiosMarkdown: `[Xen Orchestra] [${globalStatus}] Error : ${
+          error.message
+        }`,
+      })
+    }
+
     const callIds = Object.keys(calls)
 
     const nCalls = callIds.length
@@ -139,8 +477,6 @@ class BackupReportsXoPlugin {
     const skippedBackupsText = []
     const successfulBackupText = []
 
-    const formatDate = createDateFormater(status.timezone)
-
     forEach(calls, call => {
       const { id = call.params.vm } = call.params
 
@@ -226,9 +562,8 @@ class BackupReportsXoPlugin {
       return
     }
 
-    const { end, start } = status
     const { tag } = oneCall.params
-    const duration = end - start
+    const duration = status.end - status.start
     const nSuccesses = nCalls - nFailures - nSkipped
     const globalStatus = globalSuccess
       ? `Success`
@@ -238,8 +573,8 @@ class BackupReportsXoPlugin {
       `##  Global status: ${globalStatus}`,
       '',
       `- **Type**: ${formatMethod(method)}`,
-      `- **Start time**: ${formatDate(start)}`,
-      `- **End time**: ${formatDate(end)}`,
+      `- **Start time**: ${formatDate(status.start)}`,
+      `- **End time**: ${formatDate(status.end)}`,
       `- **Duration**: ${formatDuration(duration)}`,
       `- **Successes**: ${nSuccesses} / ${nCalls}`,
     ]
@@ -285,37 +620,20 @@ class BackupReportsXoPlugin {
 
     markdown = markdown.join('\n')
 
-    const xo = this._xo
-    return Promise.all([
-      xo.sendEmail !== undefined &&
-        xo.sendEmail({
-          to: this._mailsReceivers,
-          subject: `[Xen Orchestra] ${globalStatus} − Backup report for ${tag} ${
-            globalSuccess
-              ? ICON_SUCCESS
-              : nFailures !== 0 ? ICON_FAILURE : ICON_SKIPPED
-          }`,
-          markdown,
-        }),
-      xo.sendToXmppClient !== undefined &&
-        xo.sendToXmppClient({
-          to: this._xmppReceivers,
-          message: markdown,
-        }),
-      xo.sendSlackMessage !== undefined &&
-        xo.sendSlackMessage({
-          message: markdown,
-        }),
-      xo.sendPassiveCheck !== undefined &&
-        xo.sendPassiveCheck({
-          status: globalSuccess ? 0 : 2,
-          message: globalSuccess
-            ? `[Xen Orchestra] [Success] Backup report for ${tag}`
-            : `[Xen Orchestra] [${
-              nFailures !== 0 ? 'Failure' : 'Skipped'
-            }] Backup report for ${tag} - VMs : ${nagiosText.join(' ')}`,
-        }),
-    ])
+    return this._sendReport({
+      markdown,
+      subject: `[Xen Orchestra] ${globalStatus} − Backup report for ${tag} ${
+        globalSuccess
+          ? ICON_SUCCESS
+          : nFailures !== 0 ? ICON_FAILURE : ICON_SKIPPED
+      }`,
+      nagiosStatus: globalSuccess ? 0 : 2,
+      nagiosMarkdown: globalSuccess
+        ? `[Xen Orchestra] [Success] Backup report for ${tag}`
+        : `[Xen Orchestra] [${
+            nFailures !== 0 ? 'Failure' : 'Skipped'
+          }] Backup report for ${tag} - VMs : ${nagiosText.join(' ')}`,
+    })
   }
 }
 

packages/xo-server-cloud/src/index.js

@@ -128,10 +128,15 @@ class XoServerCloud {
       throw new Error(`cannot get resource: ${namespace} not registered`)
     }
 
-    const namespaceCatalog = await this._getNamespaceCatalog(namespace)
+    const { _token: token } = await this._getNamespaceCatalog(namespace)
+
+    // 2018-03-20 Extra check: getResourceDownloadToken seems to be called without a token in some cases
+    if (token === undefined) {
+      throw new Error(`${namespace} namespace token is undefined`)
+    }
 
     const downloadToken = await this._updater.call('getResourceDownloadToken', {
-      token: namespaceCatalog._token,
+      token,
       id,
       version,
     })

packages/xo-server-load-balancer/package.json

@@ -30,7 +30,7 @@
     "node": ">=4"
   },
   "dependencies": {
-    "@xen-orchestra/cron": "^1.0.2",
+    "@xen-orchestra/cron": "^1.0.3",
     "babel-runtime": "^6.11.6",
     "lodash": "^4.16.2"
   },

packages/xo-server-perf-alert/package.json

@@ -1,6 +1,6 @@
 {
   "name": "xo-server-perf-alert",
-  "version": "0.0.0",
+  "version": "0.1.0",
   "license": "AGPL-3.0",
   "description": "",
   "keywords": [],
@@ -20,16 +20,16 @@
     "node": ">=6"
   },
   "dependencies": {
-    "@xen-orchestra/cron": "^1.0.2",
+    "@xen-orchestra/cron": "^1.0.3",
     "d3-time-format": "^2.1.1",
     "json5": "^1.0.0",
     "lodash": "^4.17.4"
   },
   "devDependencies": {
-    "@babel/cli": "7.0.0-beta.40",
-    "@babel/core": "7.0.0-beta.40",
-    "@babel/preset-env": "7.0.0-beta.40",
-    "@babel/preset-flow": "^7.0.0-beta.40",
+    "@babel/cli": "7.0.0-beta.44",
+    "@babel/core": "7.0.0-beta.44",
+    "@babel/preset-env": "7.0.0-beta.44",
+    "@babel/preset-flow": "^7.0.0-beta.44",
     "babel-plugin-lodash": "^3.3.2",
     "cross-env": "^5.1.3",
     "rimraf": "^2.6.2"

packages/xo-server-perf-alert/src/index.js

@@ -1,10 +1,11 @@
 import JSON5 from 'json5'
 import { createSchedule } from '@xen-orchestra/cron'
-import { forOwn, map, mean } from 'lodash'
+import { assign, forOwn, map, mean } from 'lodash'
 import { utcParse } from 'd3-time-format'
 
 const VM_FUNCTIONS = {
   cpuUsage: {
+    name: 'VM CPU usage',
     description:
       'Raises an alarm when the average usage of any CPU is higher than the threshold',
     unit: '%',
@@ -31,6 +32,7 @@ const VM_FUNCTIONS = {
     },
   },
   memoryUsage: {
+    name: 'VM memory usage',
     description:
       'Raises an alarm when the used memory % is higher than the threshold',
     unit: '% used',
@@ -60,6 +62,7 @@ const VM_FUNCTIONS = {
 
 const HOST_FUNCTIONS = {
   cpuUsage: {
+    name: 'host CPU usage',
     description:
       'Raises an alarm when the average usage of any CPU is higher than the threshold',
     unit: '%',
@@ -86,6 +89,7 @@ const HOST_FUNCTIONS = {
     },
   },
   memoryUsage: {
+    name: 'host memory usage',
     description:
       'Raises an alarm when the used memory % is higher than the threshold',
     unit: '% used',
@@ -105,9 +109,25 @@ const HOST_FUNCTIONS = {
           )
         },
         getDisplayableValue,
-        shouldAlarm: () => {
-          return getDisplayableValue() > threshold
-        },
+        shouldAlarm: () => getDisplayableValue() > threshold,
+      }
+    },
+  },
+}
+
+const SR_FUNCTIONS = {
+  storageUsage: {
+    name: 'SR storage usage',
+    description:
+      'Raises an alarm when the used disk space % is higher than the threshold',
+    unit: '% used',
+    comparator: '>',
+    createGetter: threshold => sr => {
+      const getDisplayableValue = () =>
+        sr.physical_utilisation * 100 / sr.physical_size
+      return {
+        getDisplayableValue,
+        shouldAlarm: () => getDisplayableValue() > threshold,
       }
     },
   },
@@ -116,6 +136,7 @@ const HOST_FUNCTIONS = {
 const TYPE_FUNCTION_MAP = {
   vm: VM_FUNCTIONS,
   host: HOST_FUNCTIONS,
+  sr: SR_FUNCTIONS,
 }
 
 // list of currently ringing alarms, to avoid double notification
@@ -229,11 +250,52 @@ export const configurationSchema = {
         required: ['uuids'],
       },
     },
+    srMonitors: {
+      type: 'array',
+      title: 'SR Monitors',
+      description:
+        'Alarms checking all SRs on all pools. The selected performance counter is sampled regularly and averaged. ' +
+        'The Average is compared to the threshold and an alarm is raised upon crossing',
+      items: {
+        type: 'object',
+        properties: {
+          uuids: {
+            title: 'SRs',
+            type: 'array',
+            items: {
+              type: 'string',
+              $type: 'SR',
+            },
+          },
+          variableName: {
+            title: 'Alarm Type',
+            description: Object.keys(SR_FUNCTIONS)
+              .map(
+                k =>
+                  `  * ${k} (${SR_FUNCTIONS[k].unit}): ${
+                    SR_FUNCTIONS[k].description
+                  }`
+              )
+              .join('\n'),
+            type: 'string',
+            default: Object.keys(SR_FUNCTIONS)[0],
+            enum: Object.keys(SR_FUNCTIONS),
+          },
+          alarmTriggerLevel: {
+            title: 'Threshold',
+            description:
+              'The direction of the crossing is given by the Alarm type',
+            type: 'number',
+            default: 80,
+          },
+        },
+        required: ['uuids'],
+      },
+    },
     toEmails: {
       type: 'array',
       title: 'Email addresses',
       description: 'Email addresses of the alert recipients',
-
       items: {
         type: 'string',
       },
@@ -259,13 +321,11 @@ const raiseOrLowerAlarm = (
       currentAlarms[alarmId] = true
       raiseCallback(alarmId)
     }
-  } else {
-    if (current) {
-      try {
-        lowerCallback(alarmId)
-      } finally {
-        delete currentAlarms[alarmId]
-      }
+  } else if (current) {
+    try {
+      lowerCallback(alarmId)
+    } finally {
+      delete currentAlarms[alarmId]
     }
   }
 }
@@ -297,24 +357,38 @@ class PerfAlertXoPlugin {
     clearCurrentAlarms()
   }
 
+  load () {
+    this._job.start()
+  }
+
+  unload () {
+    this._job.stop()
+  }
+
   _generateUrl (type, object) {
-    const map = {
-      vm: () => `${this._configuration.baseUrl}#/vms/${object.uuid}/stats`,
-      host: () => `${this._configuration.baseUrl}#/hosts/${object.uuid}/stats`,
+    const { baseUrl } = this._configuration
+    const { uuid } = object
+    switch (type) {
+      case 'vm':
+        return `${baseUrl}#/vms/${uuid}/stats`
+      case 'host':
+        return `${baseUrl}#/hosts/${uuid}/stats`
+      case 'sr':
+        return `${baseUrl}#/srs/${uuid}/general`
+      default:
+        return 'unknown type'
     }
-    return map[type]()
   }
 
   async test () {
-    const hostMonitorPart2 = await Promise.all(
-      map(this._getMonitors(), async m => {
-        const tableBody = (await m.snapshot()).map(entry => entry.tableItem)
-        return `
+    const monitorBodies = await Promise.all(
+      map(
+        this._getMonitors(),
+        async m => `
 ## Monitor for ${m.title}
 
-${m.tableHeader}
-${tableBody.join('')}`
-      })
+${(await m.snapshot()).map(entry => entry.listItem).join('')}`
+      )
     )
 
     this._sendAlertEmail(
@@ -322,18 +396,10 @@ ${tableBody.join('')}`
       `
 # Performance Alert Test
 Your alarms and their current status:
-${hostMonitorPart2.join('\n')}`
+${monitorBodies.join('\n')}`
     )
   }
 
-  load () {
-    this._job.start()
-  }
-
-  unload () {
-    this._job.stop()
-  }
-
   _parseDefinition (definition) {
     const alarmId = `${definition.objectType}|${definition.variableName}|${
       definition.alarmTriggerLevel
@@ -384,63 +450,67 @@ ${hostMonitorPart2.join('\n')}`
       definition.alarmTriggerPeriod !== undefined
         ? definition.alarmTriggerPeriod
         : 60
-    const typeText = definition.objectType === 'host' ? 'Host' : 'VM'
     return {
       ...definition,
       alarmId,
       vmFunction: typeFunction,
-      title: `${typeText} ${definition.variableName} ${
-        typeFunction.comparator
-      } ${definition.alarmTriggerLevel}${typeFunction.unit}`,
-      tableHeader: `${typeText}  | Value | Alert\n--- | -----:| ---:`,
+      title: `${typeFunction.name} ${typeFunction.comparator} ${
+        definition.alarmTriggerLevel
+      }${typeFunction.unit}`,
       snapshot: async () => {
         return Promise.all(
           map(definition.uuids, async uuid => {
             try {
-              const monitoredObject = this._xo.getXapi(uuid).getObject(uuid)
-              const objectLink = `[${
-                monitoredObject.name_label
-              }](${this._generateUrl(definition.objectType, monitoredObject)})`
-              const rrd = await this.getRrd(monitoredObject, observationPeriod)
-              const couldFindRRD = rrd !== null
               const result = {
-                object: monitoredObject,
-                couldFindRRD,
-                objectLink: objectLink,
-                listItem: `  * ${typeText} ${objectLink} ${
-                  definition.variableName
-                }: **Can't read performance counters**\n`,
-                tableItem: `${objectLink} | - | **Can't read performance counters**\n`,
+                uuid,
+                name: definition.name,
+                object: this._xo.getXapi(uuid).getObject(uuid),
               }
-              if (!couldFindRRD) {
-                return result
+
+              if (result.object === undefined) {
+                throw new Error('object not found')
               }
-              const data = parseData(rrd, monitoredObject.uuid)
-              const textValue =
-                data.getDisplayableValue().toFixed(1) + typeFunction.unit
-              const shouldAlarm = data.shouldAlarm()
-              return {
-                ...result,
-                value: data.getDisplayableValue(),
-                shouldAlarm: shouldAlarm,
-                textValue: textValue,
-                listItem: `  * ${typeText} ${objectLink} ${
-                  definition.variableName
-                }: ${textValue}\n`,
-                tableItem: `${objectLink} | ${textValue} | ${
-                  shouldAlarm ? '**Alert Ongoing**' : 'no alert'
-                }\n`,
+
+              result.objectLink = `[${
+                result.object.name_label
+              }](${this._generateUrl(definition.objectType, result.object)})`
+
+              if (typeFunction.createGetter === undefined) {
+                // Stats via RRD
+                result.rrd = await this.getRrd(result.object, observationPeriod)
+                if (result.rrd !== null) {
+                  const data = parseData(result.rrd, result.object.uuid)
+                  assign(result, {
+                    data,
+                    value: data.getDisplayableValue(),
+                    shouldAlarm: data.shouldAlarm(),
+                  })
+                }
+              } else {
+                // Stats via XAPI
+                const getter = typeFunction.createGetter(
+                  definition.alarmTriggerLevel
+                )
+                const data = getter(result.object)
+                assign(result, {
+                  value: data.getDisplayableValue(),
+                  shouldAlarm: data.shouldAlarm(),
+                })
               }
+
+              result.listItem = `  * ${result.objectLink}: ${
+                result.value === undefined
+                  ? "**Can't read performance counters**"
+                  : result.value.toFixed(1) + typeFunction.unit
+              }\n`
+
+              return result
             } catch (_) {
               return {
                 uuid,
                 object: null,
-                couldFindRRD: false,
                 objectLink: `cannot find object ${uuid}`,
-                listItem: `  * ${typeText} ${uuid} ${
-                  definition.variableName
-                }: **Can't read performance counters**\n`,
-                tableItem: `object ${uuid} | - | **Can't read performance counters**\n`,
+                listItem: `  * ${uuid}: **Can't read performance counters**\n`,
               }
             }
           })
@@ -452,11 +522,17 @@ ${hostMonitorPart2.join('\n')}`
   _getMonitors () {
     return map(this._configuration.hostMonitors, def =>
       this._parseDefinition({ ...def, objectType: 'host' })
-    ).concat(
-      map(this._configuration.vmMonitors, def =>
-        this._parseDefinition({ ...def, objectType: 'vm' })
-      )
     )
+      .concat(
+        map(this._configuration.vmMonitors, def =>
+          this._parseDefinition({ ...def, objectType: 'vm' })
+        )
+      )
+      .concat(
+        map(this._configuration.srMonitors, def =>
+          this._parseDefinition({ ...def, objectType: 'sr' })
+        )
+      )
   }
 
   async _checkMonitors () {
@@ -466,7 +542,7 @@ ${hostMonitorPart2.join('\n')}`
       for (const entry of snapshot) {
         raiseOrLowerAlarm(
           `${monitor.alarmId}|${entry.uuid}|RRD`,
-          !entry.couldFindRRD,
+          entry.value === undefined,
           () => {
             this._sendAlertEmail(
               'Secondary Issue',
@@ -477,9 +553,11 @@ ${entry.listItem}`
           },
           () => {}
         )
-        if (!entry.couldFindRRD) {
+
+        if (entry.value === undefined) {
           continue
         }
+
         const raiseAlarm = alarmId => {
           // sample XenCenter message:
           // value: 1.242087 config: <variable> <name value="mem_usage"/> </variable>
@@ -500,23 +578,24 @@ ${entry.listItem}`
           this._sendAlertEmail(
             '',
             `
-## ALERT ${monitor.title}
+## ALERT: ${monitor.title}
 ${entry.listItem}
 ### Description
   ${monitor.vmFunction.description}`
           )
         }
+
         const lowerAlarm = alarmId => {
-          console.log('lowering Alarm', alarmId)
           this._sendAlertEmail(
             'END OF ALERT',
             `
-## END OF ALERT ${monitor.title}
+## END OF ALERT: ${monitor.title}
 ${entry.listItem}
 ### Description
   ${monitor.vmFunction.description}`
           )
         }
+
         raiseOrLowerAlarm(
           `${monitor.alarmId}|${entry.uuid}`,
           entry.shouldAlarm,

packages/xo-server-transport-email/src/index.js

@@ -58,7 +58,8 @@ export const configurationSchema = {
         },
         port: {
           type: 'integer',
-          description: 'port of the SMTP server (defaults to 25 or 465 for TLS)',
+          description:
+            'port of the SMTP server (defaults to 25 or 465 for TLS)',
         },
         secure: {
           default: false,

packages/xo-server-usage-report/package.json

@@ -1,6 +1,6 @@
 {
   "name": "xo-server-usage-report",
-  "version": "0.3.2",
+  "version": "0.4.2",
   "license": "AGPL-3.0",
   "description": "",
   "keywords": [
@@ -34,7 +34,7 @@
     "node": ">=4"
   },
   "dependencies": {
-    "@xen-orchestra/cron": "^1.0.2",
+    "@xen-orchestra/cron": "^1.0.3",
     "babel-runtime": "^6.23.0",
     "handlebars": "^4.0.6",
     "html-minifier": "^3.5.8",

packages/xo-server-usage-report/report.html.tpl

@@ -90,7 +90,7 @@
     .top table{
       margin: auto;
       margin-top: 20px;
-      width: 400px;
+      min-width: 30em;
     }
 
     .top table caption {
@@ -121,6 +121,10 @@
       border:1px solid #95a5a6;
       text-align: center;
     }
+
+    .allResources table {
+      min-width: 60em
+    }
   </style>
 </head>
 <body>
@@ -151,86 +155,34 @@
         </tr>
         <tr>
           <td>Number:</td>
-          <td>{{global.vms.number}}</td>
-          <td>
-            {{#if global.vmsEvolution.number}}
-              {{#compare global.vmsEvolution.number ">" 0}}+{{/compare}}
-              {{global.vmsEvolution.number}}
-            {{else}}
-              0
-            {{/if}}
-          </td>
+          <td>{{global.vms.number}} {{normaliseEvolution global.vmsEvolution.number}}</td>
         </tr>
         <tr>
           <td>CPU:</td>
-          <td>{{global.vms.cpu}} %</td> <!-- One condition doesn't work -->
-          <td style='color:{{#compare global.vmsEvolution.cpu ">" 0}} red {{else}} green {{/compare}}'>
-            {{#if global.vmsEvolution.cpu}}
-              {{#compare global.vmsEvolution.cpu ">" 0}}+{{/compare}}
-              {{global.vmsEvolution.cpu}}%
-            {{else}}
-              0
-            {{/if}}
-          </td>
+          <td>{{normaliseValue global.vms.cpu}} % {{normaliseEvolution global.vmsEvolution.cpu}}</td>
         <tr>
         <tr>
           <td>RAM:</td>
-          <td>{{global.vms.ram}} GiB</td>
-          <td style='color:{{#compare global.vmsEvolution.ram ">" 0}} red {{else}} green {{/compare}}'>
-            {{#if global.vmsEvolution.ram}}
-              {{#compare global.vmsEvolution.ram ">" 0}}+{{/compare}}
-              {{global.vmsEvolution.ram}}%
-            {{else}}
-              0
-            {{/if}}
-          </td>
+          <td>{{normaliseValue global.vms.ram}} GiB {{normaliseEvolution global.vmsEvolution.ram}}</td>
         <tr>
         <tr>
           <td>Disk read:</td>
-          <td>{{global.vms.diskRead}} MiB</td>
-          <td style='color:{{#compare global.vmsEvolution.diskRead ">" 0}} red {{else}} green {{/compare}}'>
-            {{#if global.vmsEvolution.diskRead}}
-              {{#compare global.vmsEvolution.diskRead ">" 0}}+{{/compare}}
-              {{global.vmsEvolution.diskRead}}%
-            {{else}}
-              0
-            {{/if}}
+          <td>{{normaliseValue global.vms.diskRead}} MiB {{normaliseEvolution global.vmsEvolution.diskRead}}
           </td>
         <tr>
         <tr>
           <td>Disk write:</td>
-          <td>{{global.vms.diskWrite}} MiB</td>
-          <td style='color:{{#compare global.vmsEvolution.diskWrite ">" 0}} red {{else}} green {{/compare}}'>
-            {{#if global.vmsEvolution.diskWrite}}
-              {{#compare global.vmsEvolution.diskWrite ">" 0}}+{{/compare}}
-              {{global.vmsEvolution.diskWrite}}%
-            {{else}}
-              0
-            {{/if}}
+          <td>{{normaliseValue global.vms.diskWrite}} MiB {{normaliseEvolution global.vmsEvolution.diskWrite}}
           </td>
         <tr>
         <tr>
-          <td>Net reception:</td>
-          <td>{{global.vms.netReception}} KiB</td>
-          <td style='color:{{#compare global.vmsEvolution.netReception ">" 0}} red {{else}} green {{/compare}}'>
-            {{#if global.vmsEvolution.netReception}}
-              {{#compare global.vmsEvolution.netReception ">" 0}}+{{/compare}}
-              {{global.vmsEvolution.netReception}}%
-            {{else}}
-              0
-            {{/if}}
+          <td>Network RX:</td>
+          <td>{{normaliseValue global.vms.netReception}} KiB {{normaliseEvolution global.vmsEvolution.netReception}}
           </td>
         <tr>
         <tr>
-          <td>Net transmission:</td>
-          <td>{{global.vms.netTransmission}} KiB</td>
-          <td style='color:{{#compare global.vmsEvolution.netTransmission ">" 0}} red {{else}} green {{/compare}}'>
-            {{#if global.vmsEvolution.netTransmission}}
-              {{#compare global.vmsEvolution.netTransmission ">" 0}}+{{/compare}}
-              {{global.vmsEvolution.netTransmission}}%
-            {{else}}
-              0
-            {{/if}}
+          <td>Network TX:</td>
+          <td>{{normaliseValue global.vms.netTransmission}} KiB {{normaliseEvolution global.vmsEvolution.netTransmission}}
           </td>
         <tr>
       </table>
@@ -253,7 +205,7 @@
           <tr>
             <td>{{shortUUID this.uuid}}</td>
             <td>{{this.name}}</td>
-            <td>{{this.value}} %</td>
+            <td>{{normaliseValue this.value}} %</td>
           </tr>
           {{/each}}
 
@@ -264,7 +216,7 @@
           <tr>
             <td>{{shortUUID this.uuid}}</td>
             <td>{{this.name}}</td>
-            <td>{{this.value}} GiB</td>
+            <td>{{normaliseValue this.value}} GiB</td>
           </tr>
           {{/each}}
           <tr>
@@ -274,7 +226,7 @@
           <tr>
             <td>{{shortUUID this.uuid}}</td>
             <td>{{this.name}}</td>
-            <td>{{this.value}} MiB</td>
+            <td>{{normaliseValue this.value}} MiB</td>
           </tr>
           {{/each}}
           <tr>
@@ -284,27 +236,27 @@
           <tr>
             <td>{{shortUUID this.uuid}}</td>
             <td>{{this.name}}</td>
-            <td>{{this.value}} MiB</td>
+            <td>{{normaliseValue this.value}} MiB</td>
           </tr>
           {{/each}}
           <tr>
-            <td rowspan='{{math topVms.netReception.length "+" 1}}' class="tableHeader">Net reception</td>
+            <td rowspan='{{math topVms.netReception.length "+" 1}}' class="tableHeader">Network RX</td>
           </tr>
           {{#each topVms.netReception}}
           <tr>
             <td>{{shortUUID this.uuid}}</td>
             <td>{{this.name}}</td>
-            <td>{{this.value}} KiB</td>
+            <td>{{normaliseValue this.value}} KiB</td>
           </tr>
           {{/each}}
           <tr>
-            <td rowspan='{{math topVms.netTransmission.length "+" 1}}' class="tableHeader">Net transmission</td>
+            <td rowspan='{{math topVms.netTransmission.length "+" 1}}' class="tableHeader">Network TX</td>
           </tr>
           {{#each topVms.netTransmission}}
           <tr>
             <td>{{shortUUID this.uuid}}</td>
             <td>{{this.name}}</td>
-            <td>{{this.value}} KiB</td>
+            <td>{{normaliseValue this.value}} KiB</td>
           </tr>
           {{/each}}
         </table>
@@ -318,75 +270,33 @@
         </tr>
         <tr>
           <td>Number:</td>
-          <td>{{global.hosts.number}}</td>
-          <td>
-            {{#if global.hostsEvolution.number}}
-              {{#compare global.hostsEvolution.number ">" 0}}+{{/compare}}
-              {{global.hostsEvolution.number}}
-            {{else}}
-              0
-            {{/if}}
+          <td>{{global.hosts.number}} {{normaliseEvolution global.hostsEvolution.number}}
           </td>
         </tr>
         <tr>
           <td>CPU:</td>
-          <td>{{global.hosts.cpu}} %</td>
-          <td style='color:{{#compare global.hostsEvolution.cpu ">" 0}} red {{else}} green {{/compare}}'>
-            {{#if global.hostsEvolution.cpu}}
-              {{#compare global.hostsEvolution.cpu ">" 0}}+{{/compare}}
-              {{global.hostsEvolution.cpu}}%
-            {{else}}
-              0
-            {{/if}}
+          <td>{{normaliseValue global.hosts.cpu}} % {{normaliseEvolution global.hostsEvolution.cpu}}
           </td>
         <tr>
         <tr>
           <td>RAM:</td>
-          <td>{{global.hosts.ram}} GiB</td>
-          <td style='color:{{#compare global.hostsEvolution.ram ">" 0}} red {{else}} green {{/compare}}'>
-            {{#if global.hostsEvolution.ram}}
-              {{#compare global.hostsEvolution.ram ">" 0}}+{{/compare}}
-              {{global.hostsEvolution.ram}}%
-            {{else}}
-              0
-            {{/if}}
+          <td>{{normaliseValue global.hosts.ram}} GiB {{normaliseEvolution global.hostsEvolution.ram}}
           </td>
           </td>
         <tr>
         <tr>
           <td>Load average:</td>
-          <td>{{global.hosts.load}} </td>
-          <td style='color:{{#compare global.hostsEvolution.load ">" 0}} red {{else}} green {{/compare}}'>
-            {{#if global.hostsEvolution.load}}
-              {{#compare global.hostsEvolution.load ">" 0}}+{{/compare}}
-              {{global.hostsEvolution.load}}%
-            {{else}}
-              0
-            {{/if}}
+          <td>{{normaliseValue global.hosts.load}}  {{normaliseEvolution global.hostsEvolution.load}}
           </td>
         <tr>
         <tr>
-          <td>Net reception:</td>
-          <td>{{global.hosts.netReception}} KiB</td>
-          <td style='color:{{#compare global.hostsEvolution.netReception ">" 0}} red {{else}} green {{/compare}}'>
-            {{#if global.hostsEvolution.netReception}}
-              {{#compare global.hostsEvolution.netReception ">" 0}}+{{/compare}}
-              {{global.hostsEvolution.netReception}}%
-            {{else}}
-              0
-            {{/if}}
+          <td>Network RX:</td>
+          <td>{{normaliseValue global.hosts.netReception}} KiB {{normaliseEvolution global.hostsEvolution.netReception}}
           </td>
         <tr>
         <tr>
-          <td>Net transmission:</td>
-          <td>{{global.hosts.netTransmission}} KiB</td>
-          <td style='color:{{#compare global.hostsEvolution.netTransmission ">" 0}} red {{else}} green {{/compare}}'>
-            {{#if global.hostsEvolution.netTransmission}}
-              {{#compare global.hostsEvolution.netTransmission ">" 0}}+{{/compare}}
-              {{global.hostsEvolution.netTransmission}}%
-            {{else}}
-              0
-            {{/if}}
+          <td>Network TX:</td>
+          <td>{{normaliseValue global.hosts.netTransmission}} KiB {{normaliseEvolution global.hostsEvolution.netTransmission}}
           </td>
         <tr>
       </table>
@@ -408,7 +318,7 @@
           <tr>
             <td>{{shortUUID this.uuid}}</td>
             <td>{{this.name}}</td>
-            <td>{{this.value}} %</td>
+            <td>{{normaliseValue this.value}} %</td>
           </tr>
           {{/each}}
           <tr>
@@ -418,7 +328,7 @@
           <tr>
             <td>{{shortUUID this.uuid}}</td>
             <td>{{this.name}}</td>
-            <td>{{this.value}} GiB</td>
+            <td>{{normaliseValue this.value}} GiB</td>
           </tr>
           {{/each}}
           <tr>
@@ -428,27 +338,27 @@
           <tr>
             <td>{{shortUUID this.uuid}}</td>
             <td>{{this.name}}</td>
-            <td>{{this.value}} </td>
+            <td>{{normaliseValue this.value}} </td>
           </tr>
           {{/each}}
           <tr>
-            <td rowspan='{{math topHosts.netReception.length "+" 1}}' class="tableHeader">Net reception</td>
+            <td rowspan='{{math topHosts.netReception.length "+" 1}}' class="tableHeader">Network RX</td>
           </tr>
           {{#each topHosts.netReception}}
           <tr>
             <td>{{shortUUID this.uuid}}</td>
             <td>{{this.name}}</td>
-            <td>{{this.value}} KiB</td>
+            <td>{{normaliseValue this.value}} KiB</td>
           </tr>
           {{/each}}
           <tr>
-            <td rowspan='{{math topHosts.netTransmission.length "+" 1}}' class="tableHeader">Net transmission</td>
+            <td rowspan='{{math topHosts.netTransmission.length "+" 1}}' class="tableHeader">Network TX</td>
           </tr>
           {{#each topHosts.netTransmission}}
           <tr>
             <td>{{shortUUID this.uuid}}</td>
             <td>{{this.name}}</td>
-            <td>{{this.value}} KiB</td>
+            <td>{{normaliseValue this.value}} KiB</td>
           </tr>
           {{/each}}
         </table>
@@ -464,11 +374,11 @@
               <th>Name</th>
               <th>value</th>
             </tr>
-            {{#each topAllocation}}
+            {{#each topSrs}}
               <tr>
                 <td>{{shortUUID this.uuid}}</td>
                 <td>{{this.name}}</td>
-                <td>{{this.size}} GiB</td>
+                <td>{{normaliseValue this.value}} GiB</td>
               </tr>
              {{/each}}
           </table>
@@ -533,8 +443,8 @@
               <th>UUID</th>
               <th>Name</th>
             </tr>
-            {{#if vmsRessourcesEvolution.added}}
-              {{#each vmsRessourcesEvolution.added}}
+            {{#if vmsResourcesEvolution.added}}
+              {{#each vmsResourcesEvolution.added}}
                 <tr>
                   <td>{{shortUUID this.uuid}}</td>
                   <td>{{this.name}}</td>
@@ -553,8 +463,8 @@
               <th>UUID</th>
               <th>Name</th>
             </tr>
-            {{#if vmsRessourcesEvolution.removed}}
-              {{#each vmsRessourcesEvolution.removed}}
+            {{#if vmsResourcesEvolution.removed}}
+              {{#each vmsResourcesEvolution.removed}}
               <tr>
                 <td>{{shortUUID this.uuid}}</td>
                 <td>{{this.name}}</td>
@@ -572,8 +482,8 @@
               <th>UUID</th>
               <th>Name</th>
             </tr>
-            {{#if hostsRessourcesEvolution.added}}
-              {{#each hostsRessourcesEvolution.added}}
+            {{#if hostsResourcesEvolution.added}}
+              {{#each hostsResourcesEvolution.added}}
               <tr>
                 <td>{{shortUUID this.uuid}}</td>
                 <td>{{this.name}}</td>
@@ -591,8 +501,8 @@
               <th>UUID</th>
               <th>Name</th>
             </tr>
-            {{#if hostsRessourcesEvolution.removed}}
-              {{#each hostsRessourcesEvolution.removed}}
+            {{#if hostsResourcesEvolution.removed}}
+              {{#each hostsResourcesEvolution.removed}}
               <tr>
                 <td>{{shortUUID this.uuid}}</td>
                 <td>{{this.name}}</td>
@@ -606,5 +516,81 @@
           </table>
       </div>
     </div>
+    {{#if allResources}}
+      <div class="page">
+        <div class="top allResources">
+          <hr color="#95a5a6" size="1px"/>
+          <h3 style="text-align: center;">All resources</h3>
+          <hr color="#95a5a6" size="1px"/>
+          <table>
+            <caption>VMs</caption>
+            <tr>
+              <th>UUID</th>
+              <th>Name</th>
+              <th>CPU</th>
+              <th>RAM (GiB)</th>
+              <th>Disk read (MiB)</th>
+              <th>Disk write (MiB)</th>
+              <th>Network RX (KiB)</th>
+              <th>Network TX (KiB)</th>
+            </tr>
+            {{#each allResources.vms}}
+              <tr>
+                <td>{{shortUUID this.uuid}}</td>
+                <td>{{this.name}}</td>
+                <td>{{normaliseValue this.cpu}} % {{normaliseEvolution this.evolution.cpu}}</td>
+                <td>{{normaliseValue this.ram}} {{normaliseEvolution this.evolution.ram}}</td>
+                <td>{{normaliseValue this.diskRead}} {{normaliseEvolution this.evolution.diskRead}}</td>
+                <td>{{normaliseValue this.diskWrite}} {{normaliseEvolution this.evolution.diskWrite}}</td>
+                <td>{{normaliseValue this.netReception}} {{normaliseEvolution this.evolution.netReception}}</td>
+                <td>{{normaliseValue this.netTransmission}} {{normaliseEvolution this.evolution.netTransmission}}</td>
+              </tr>
+            {{/each}}
+          </table>
+          <table>
+            <caption>Hosts</caption>
+            <tr>
+              <th>UUID</th>
+              <th>Name</th>
+              <th>CPU</th>
+              <th>RAM (GiB)</th>
+              <th>Load average</th>
+              <th>Network RX (KiB)</th>
+              <th>Network TX (KiB)</th>
+            </tr>
+            {{#each allResources.hosts}}
+              <tr>
+                <td>{{shortUUID this.uuid}}</td>
+                <td>{{this.name}}</td>
+                <td>{{normaliseValue this.cpu}} % {{normaliseEvolution this.evolution.cpu}}</td>
+                <td>{{normaliseValue this.ram}} {{normaliseEvolution this.evolution.ram}}</td>
+                <td>{{normaliseValue this.load}} {{normaliseEvolution this.evolution.load}}</td>
+                <td>{{normaliseValue this.netReception}} {{normaliseEvolution this.evolution.netReception}}</td>
+                <td>{{normaliseValue this.netTransmission}} {{normaliseEvolution this.evolution.netTransmission}}</td>
+              </tr>
+            {{/each}}
+          </table>
+          <table>
+            <caption>SRs</caption>
+            <tr>
+              <th>UUID</th>
+              <th>Name</th>
+              <th>Total space (GiB)</th>
+              <th>Used space (GiB)</th>
+              <th>Free space (GiB)</th>
+            </tr>
+            {{#each allResources.srs}}
+              <tr>
+                <td>{{shortUUID this.uuid}}</td>
+                <td>{{this.name}}</td>
+                <td>{{normaliseValue this.total}} {{normaliseEvolution this.evolution.total}}</td>
+                <td>{{normaliseValue this.used}}</td>
+                <td>{{normaliseValue this.free}}</td>
+              </tr>
+            {{/each}}
+          </table>
+        </div>
+      </div>
+    {{/if}}
 </body>
 </html>

packages/xo-server-usage-report/src/index.js

@@ -6,7 +6,9 @@ import {
   concat,
   differenceBy,
   filter,
+  find,
   forEach,
+  get,
   isFinite,
   map,
   orderBy,
@@ -67,6 +69,10 @@ export const configurationSchema = {
         type: 'string',
       },
     },
+    all: {
+      type: 'boolean',
+      description: "It includes all resources' stats if on.",
+    },
     periodicity: {
       type: 'string',
       enum: ['monthly', 'weekly'],
@@ -88,12 +94,12 @@ Handlebars.registerHelper('compare', function (
   options
 ) {
   if (arguments.length < 3) {
-    throw new Error('Handlerbars Helper "compare" needs 2 parameters')
+    throw new Error('Handlebars Helper "compare" needs 2 parameters')
   }
 
   if (!compareOperators[operator]) {
     throw new Error(
-      `Handlerbars Helper "compare" doesn't know the operator ${operator}`
+      `Handlebars Helper "compare" doesn't know the operator ${operator}`
     )
   }
 
@@ -104,12 +110,12 @@ Handlebars.registerHelper('compare', function (
 
 Handlebars.registerHelper('math', function (lvalue, operator, rvalue, options) {
   if (arguments.length < 3) {
-    throw new Error('Handlerbars Helper "math" needs 2 parameters')
+    throw new Error('Handlebars Helper "math" needs 2 parameters')
   }
 
   if (!mathOperators[operator]) {
     throw new Error(
-      `Handlerbars Helper "math" doesn't know the operator ${operator}`
+      `Handlebars Helper "math" doesn't know the operator ${operator}`
     )
   }
 
@@ -122,6 +128,23 @@ Handlebars.registerHelper('shortUUID', uuid => {
   }
 })
 
+Handlebars.registerHelper(
+  'normaliseValue',
+  value => (isFinite(value) ? round(value, 2) : '-')
+)
+
+Handlebars.registerHelper(
+  'normaliseEvolution',
+  value =>
+    new Handlebars.SafeString(
+      isFinite(+value) && +value !== 0
+        ? (value = round(value, 2)) > 0
+          ? `(<b style="color: green;">▲ ${value}</b>)`
+          : `(<b style="color: red;">▼ ${String(value).slice(1)}</b>)`
+        : ''
+    )
+)
+
 // ===================================================================
 
 function computeMean (values) {
@@ -137,12 +160,12 @@ function computeMean (values) {
   return sum / n
 }
 
-const computeDoubleMean = val => computeMean(val.map(computeMean))
+const computeDoubleMean = val => computeMean(map(val, computeMean))
 
 function computeMeans (objects, options) {
   return zipObject(
     options,
-    map(options, opt => round(computeMean(map(objects, opt)), 2))
+    map(options, opt => computeMean(map(objects, opt)), 2)
   )
 }
 
@@ -163,67 +186,103 @@ function getTop (objects, options) {
         obj => ({
           uuid: obj.uuid,
           name: obj.name,
-          value: round(obj[opt], 2),
+          value: obj[opt],
         })
       )
     )
   )
 }
 
-function conputePercentage (curr, prev, options) {
+function computePercentage (curr, prev, options) {
   return zipObject(
     options,
     map(
       options,
       opt =>
-        prev[opt] === 0
+        prev[opt] === 0 || prev[opt] === null
           ? 'NONE'
-          : `${round((curr[opt] - prev[opt]) * 100 / prev[opt], 2)}`
+          : `${(curr[opt] - prev[opt]) * 100 / prev[opt]}`
     )
   )
 }
 
 function getDiff (oldElements, newElements) {
   return {
-    added: differenceBy(oldElements, newElements, 'uuid'),
-    removed: differenceBy(newElements, oldElements, 'uuid'),
+    added: differenceBy(newElements, oldElements, 'uuid'),
+    removed: differenceBy(oldElements, newElements, 'uuid'),
   }
 }
 
+function getMemoryUsedMetric ({ memory, memoryFree = memory }) {
+  return map(memory, (value, key) => value - memoryFree[key])
+}
+
 // ===================================================================
 
-function getVmsStats ({ runningVms, xo }) {
-  return Promise.all(
-    map(runningVms, async vm => {
-      const vmStats = await xo.getXapiVmStats(vm, 'days')
-      return {
-        uuid: vm.uuid,
-        name: vm.name_label,
-        cpu: computeDoubleMean(vmStats.stats.cpus),
-        ram: computeMean(vmStats.stats.memoryUsed) / gibPower,
-        diskRead: computeDoubleMean(values(vmStats.stats.xvds.r)) / mibPower,
-        diskWrite: computeDoubleMean(values(vmStats.stats.xvds.w)) / mibPower,
-        netReception: computeDoubleMean(vmStats.stats.vifs.rx) / kibPower,
-        netTransmission: computeDoubleMean(vmStats.stats.vifs.tx) / kibPower,
-      }
-    })
+async function getVmsStats ({ runningVms, xo }) {
+  return orderBy(
+    await Promise.all(
+      map(runningVms, async vm => {
+        const vmStats = await xo.getXapiVmStats(vm, 'days')
+        return {
+          uuid: vm.uuid,
+          name: vm.name_label,
+          cpu: computeDoubleMean(vmStats.stats.cpus),
+          ram: computeMean(getMemoryUsedMetric(vmStats.stats)) / gibPower,
+          diskRead:
+            computeDoubleMean(values(get(vmStats.stats.xvds, 'r'))) / mibPower,
+          diskWrite:
+            computeDoubleMean(values(get(vmStats.stats.xvds, 'w'))) / mibPower,
+          netReception:
+            computeDoubleMean(get(vmStats.stats.vifs, 'rx')) / kibPower,
+          netTransmission:
+            computeDoubleMean(get(vmStats.stats.vifs, 'tx')) / kibPower,
+        }
+      })
+    ),
+    'name',
+    'asc'
   )
 }
 
-function getHostsStats ({ runningHosts, xo }) {
-  return Promise.all(
-    map(runningHosts, async host => {
-      const hostStats = await xo.getXapiHostStats(host, 'days')
+async function getHostsStats ({ runningHosts, xo }) {
+  return orderBy(
+    await Promise.all(
+      map(runningHosts, async host => {
+        const hostStats = await xo.getXapiHostStats(host, 'days')
+        return {
+          uuid: host.uuid,
+          name: host.name_label,
+          cpu: computeDoubleMean(hostStats.stats.cpus),
+          ram: computeMean(getMemoryUsedMetric(hostStats.stats)) / gibPower,
+          load: computeMean(hostStats.stats.load),
+          netReception:
+            computeDoubleMean(get(hostStats.stats.pifs, 'rx')) / kibPower,
+          netTransmission:
+            computeDoubleMean(get(hostStats.stats.pifs, 'tx')) / kibPower,
+        }
+      })
+    ),
+    'name',
+    'asc'
+  )
+}
+
+function getSrsStats (xoObjects) {
+  return orderBy(
+    map(filter(xoObjects, { type: 'SR' }), sr => {
+      const total = sr.size / gibPower
+      const used = sr.physical_usage / gibPower
       return {
-        uuid: host.uuid,
-        name: host.name_label,
-        cpu: computeDoubleMean(hostStats.stats.cpus),
-        ram: computeMean(hostStats.stats.memoryUsed) / gibPower,
-        load: computeMean(hostStats.stats.load),
-        netReception: computeDoubleMean(hostStats.stats.pifs.rx) / kibPower,
-        netTransmission: computeDoubleMean(hostStats.stats.pifs.tx) / kibPower,
+        uuid: sr.uuid,
+        name: sr.name_label,
+        total,
+        used,
+        free: total - used,
       }
-    })
+    }),
+    'total',
+    'desc'
   )
 }
 
@@ -303,20 +362,21 @@ function getTopHosts ({ hostsStats, xo }) {
   ])
 }
 
-function getMostAllocatedSpaces ({ disks, xo }) {
-  return map(orderBy(disks, ['size'], ['desc']).slice(0, 3), disk => ({
-    uuid: disk.uuid,
-    name: disk.name_label,
-    size: round(disk.size / gibPower, 2),
-  }))
+function getTopSrs ({ srsStats, xo }) {
+  return getTop(srsStats, ['total']).total
 }
 
 async function getHostsMissingPatches ({ runningHosts, xo }) {
   const hostsMissingPatches = await Promise.all(
     map(runningHosts, async host => {
-      const hostsPatches = await xo
+      let hostsPatches = await xo
         .getXapi(host)
         .listMissingPoolPatchesOnHost(host._xapiId)
+
+      if (host.license_params.sku_type === 'free') {
+        hostsPatches = filter(hostsPatches, { paid: false })
+      }
+
       if (hostsPatches.length > 0) {
         return {
           uuid: host.uuid,
@@ -347,46 +407,75 @@ async function computeEvolution ({ storedStatsPath, ...newStats }) {
 
     const prevDate = oldStats.style.currDate
 
-    const vmsEvolution = {
-      number: newStatsVms.number - oldStatsVms.number,
-      ...conputePercentage(newStatsVms, oldStatsVms, [
+    const resourcesOptions = {
+      vms: [
         'cpu',
         'ram',
         'diskRead',
         'diskWrite',
         'netReception',
         'netTransmission',
-      ]),
+      ],
+      hosts: ['cpu', 'ram', 'load', 'netReception', 'netTransmission'],
+      srs: ['total'],
+    }
+
+    const vmsEvolution = {
+      number: newStatsVms.number - oldStatsVms.number,
+      ...computePercentage(newStatsVms, oldStatsVms, resourcesOptions.vms),
     }
 
     const hostsEvolution = {
       number: newStatsHosts.number - oldStatsHosts.number,
-      ...conputePercentage(newStatsHosts, oldStatsHosts, [
-        'cpu',
-        'ram',
-        'load',
-        'netReception',
-        'netTransmission',
-      ]),
+      ...computePercentage(
+        newStatsHosts,
+        oldStatsHosts,
+        resourcesOptions.hosts
+      ),
     }
 
-    const vmsRessourcesEvolution = getDiff(
+    const vmsResourcesEvolution = getDiff(
       oldStatsVms.allVms,
       newStatsVms.allVms
     )
-    const hostsRessourcesEvolution = getDiff(
+    const hostsResourcesEvolution = getDiff(
       oldStatsHosts.allHosts,
       newStatsHosts.allHosts
     )
 
     const usersEvolution = getDiff(oldStats.users, newStats.users)
 
+    const newAllResourcesStats = newStats.allResources
+    const oldAllResourcesStats = oldStats.allResources
+
+    // adding for each resource its evolution
+    if (
+      newAllResourcesStats !== undefined &&
+      oldAllResourcesStats !== undefined
+    ) {
+      forEach(newAllResourcesStats, (resource, key) => {
+        const option = resourcesOptions[key]
+
+        if (option !== undefined) {
+          forEach(resource, newItem => {
+            const oldItem = find(oldAllResourcesStats[key], {
+              uuid: newItem.uuid,
+            })
+
+            if (oldItem !== undefined) {
+              newItem.evolution = computePercentage(newItem, oldItem, option)
+            }
+          })
+        }
+      })
+    }
+
     return {
       vmsEvolution,
       hostsEvolution,
       prevDate,
-      vmsRessourcesEvolution,
-      hostsRessourcesEvolution,
+      vmsResourcesEvolution,
+      hostsResourcesEvolution,
       usersEvolution,
     }
   } catch (err) {
@@ -394,7 +483,7 @@ async function computeEvolution ({ storedStatsPath, ...newStats }) {
   }
 }
 
-async function dataBuilder ({ xo, storedStatsPath }) {
+async function dataBuilder ({ xo, storedStatsPath, all }) {
   const xoObjects = values(xo.getObjects())
   const runningVms = filter(xoObjects, { type: 'VM', power_state: 'Running' })
   const haltedVms = filter(xoObjects, { type: 'VM', power_state: 'Halted' })
@@ -403,18 +492,17 @@ async function dataBuilder ({ xo, storedStatsPath }) {
     power_state: 'Running',
   })
   const haltedHosts = filter(xoObjects, { type: 'host', power_state: 'Halted' })
-  const disks = filter(xoObjects, { type: 'SR' })
   const [
     users,
     vmsStats,
     hostsStats,
-    topAllocation,
+    srsStats,
     hostsMissingPatches,
   ] = await Promise.all([
     xo.getAllUsers(),
     getVmsStats({ xo, runningVms }),
     getHostsStats({ xo, runningHosts }),
-    getMostAllocatedSpaces({ xo, disks }),
+    getSrsStats(xoObjects),
     getHostsMissingPatches({ xo, runningHosts }),
   ])
 
@@ -423,35 +511,50 @@ async function dataBuilder ({ xo, storedStatsPath }) {
     globalHostsStats,
     topVms,
     topHosts,
+    topSrs,
     usersEmail,
   ] = await Promise.all([
     computeGlobalVmsStats({ xo, vmsStats, haltedVms }),
     computeGlobalHostsStats({ xo, hostsStats, haltedHosts }),
     getTopVms({ xo, vmsStats }),
     getTopHosts({ xo, hostsStats }),
+    getTopSrs({ xo, srsStats }),
     getAllUsersEmail(users),
   ])
+
+  let allResources
+  if (all) {
+    allResources = {
+      vms: vmsStats,
+      hosts: hostsStats,
+      srs: srsStats,
+      date: currDate,
+    }
+  }
+
   const evolution = await computeEvolution({
+    allResources,
     storedStatsPath,
     hosts: globalHostsStats,
     usersEmail,
     vms: globalVmsStats,
   })
 
-  const data = {
+  return {
+    allResources,
     global: {
       vms: globalVmsStats,
       hosts: globalHostsStats,
       vmsEvolution: evolution && evolution.vmsEvolution,
       hostsEvolution: evolution && evolution.hostsEvolution,
     },
-    topVms,
     topHosts,
+    topSrs,
+    topVms,
     hostsMissingPatches,
     usersEmail,
-    topAllocation,
-    vmsRessourcesEvolution: evolution && evolution.vmsRessourcesEvolution,
-    hostsRessourcesEvolution: evolution && evolution.hostsRessourcesEvolution,
+    vmsResourcesEvolution: evolution && evolution.vmsResourcesEvolution,
+    hostsResourcesEvolution: evolution && evolution.hostsResourcesEvolution,
     usersEvolution: evolution && evolution.usersEvolution,
     style: {
       imgXo,
@@ -460,8 +563,6 @@ async function dataBuilder ({ xo, storedStatsPath }) {
       page: '{{page}}',
     },
   }
-
-  return data
 }
 
 // ===================================================================
@@ -472,6 +573,10 @@ class UsageReportPlugin {
     this._dir = getDataDir
     // Defined in configure().
     this._conf = null
+    this._xo.addApiMethod(
+      'plugin.usageReport.send',
+      this._sendReport.bind(this, false)
+    )
   }
 
   configure (configuration, state) {
@@ -485,7 +590,7 @@ class UsageReportPlugin {
       configuration.periodicity === 'monthly' ? '00 06 1 * *' : '00 06 * * 0'
     ).createJob(async () => {
       try {
-        await this._sendReport()
+        await this._sendReport(true)
       } catch (error) {
         console.error(
           '[WARN] scheduled function:',
@@ -511,13 +616,14 @@ class UsageReportPlugin {
   }
 
   test () {
-    return this._sendReport()
+    return this._sendReport(true)
   }
 
-  async _sendReport () {
+  async _sendReport (storeData) {
     const data = await dataBuilder({
       xo: this._xo,
       storedStatsPath: this._storedStatsPath,
+      all: this._conf.all,
     })
 
     await Promise.all([
@@ -537,10 +643,11 @@ class UsageReportPlugin {
           },
         ],
       }),
-      storeStats({
-        data,
-        storedStatsPath: this._storedStatsPath,
-      }),
+      storeData &&
+        storeStats({
+          data,
+          storedStatsPath: this._storedStatsPath,
+        }),
     ])
   }
 }

packages/xo-server/better-stacks.js

@@ -8,12 +8,14 @@ try {
     const filtered = frames.filter(function (frame) {
       const name = frame && frame.getFileName()
 
-      return (// has a filename
+      return (
+        // has a filename
         name &&
         // contains a separator (no internal modules)
         name.indexOf(sep) !== -1 &&
         // does not start with `internal`
-        name.lastIndexOf('internal', 0) !== -1)
+        name.lastIndexOf('internal', 0) !== -1
+      )
     })
 
     // depd (used amongst other by express requires at least 3 frames

packages/xo-server/bin/xo-server

@@ -1,31 +0,0 @@
-#!/usr/bin/env node
-
-'use strict'
-
-// ===================================================================
-
-// Better stack traces if possible.
-require('../better-stacks')
-
-// Use Bluebird for all promises as it provides better performance and
-// less memory usage.
-global.Promise = require('bluebird')
-
-// Make unhandled rejected promises visible.
-process.on('unhandledRejection', function (reason) {
-  console.warn('[Warn] Possibly unhandled rejection:', reason && reason.stack || reason)
-})
-
-;(function (EE) {
-  var proto = EE.prototype
-  var emit = proto.emit
-  proto.emit = function patchedError (event, error) {
-    if (event === 'error' && !this.listenerCount(event)) {
-      return console.warn('[Warn] Unhandled error event:', error && error.stack || error)
-    }
-
-    return emit.apply(this, arguments)
-  }
-})(require('events').EventEmitter)
-
-require('exec-promise')(require('../'))

packages/xo-server/index.js

@@ -1,11 +0,0 @@
-'use strict'
-
-// ===================================================================
-
-// Enable xo logs by default.
-if (process.env.DEBUG === undefined) {
-  process.env.DEBUG = 'app-conf,xo:*,-xo:api'
-}
-
-// Import the real main module.
-module.exports = require('./dist').default

packages/xo-server/package.json

@@ -1,6 +1,6 @@
 {
   "name": "xo-server",
-  "version": "5.17.4",
+  "version": "5.19.4",
   "license": "AGPL-3.0",
   "description": "Server part of Xen-Orchestra",
   "keywords": [
@@ -16,6 +16,9 @@
     "url": "https://github.com/vatesfr/xen-orchestra.git"
   },
   "preferGlobal": true,
+  "bin": {
+    "xo-server": "dist/cli"
+  },
   "files": [
     "better-stacks.js",
     "bin/",
@@ -31,13 +34,14 @@
     "node": ">=6"
   },
   "dependencies": {
-    "@babel/polyfill": "7.0.0-beta.40",
+    "@babel/polyfill": "7.0.0-beta.44",
     "@marsaud/smb2-promise": "^0.2.1",
-    "@nraynaud/struct-fu": "^1.0.1",
-    "@xen-orchestra/cron": "^1.0.2",
+    "@xen-orchestra/cron": "^1.0.3",
+    "@xen-orchestra/fs": "^0.0.0",
     "ajv": "^6.1.1",
     "app-conf": "^0.5.0",
     "archiver": "^2.1.0",
+    "async-iterator-to-stream": "^1.0.1",
     "base64url": "^2.0.0",
     "bind-property-descriptor": "^1.0.0",
     "blocked": "^1.2.1",
@@ -53,21 +57,23 @@
     "escape-string-regexp": "^1.0.5",
     "event-to-promise": "^0.8.0",
     "exec-promise": "^0.7.0",
-    "execa": "^0.9.0",
+    "execa": "^0.10.0",
     "express": "^4.16.2",
     "express-session": "^1.15.6",
     "fatfs": "^0.10.4",
     "from2": "^2.3.0",
     "fs-extra": "^5.0.0",
+    "get-stream": "^3.0.0",
     "golike-defer": "^0.4.1",
     "hashy": "^0.6.2",
     "helmet": "^3.9.0",
     "highland": "^2.11.1",
     "http-proxy": "^1.16.2",
     "http-request-plus": "^0.5.0",
-    "http-server-plus": "^0.8.0",
+    "http-server-plus": "^0.10.0",
     "human-format": "^0.10.0",
     "is-redirect": "^1.0.0",
+    "jest-worker": "^22.4.3",
     "js-yaml": "^3.10.0",
     "json-rpc-peer": "^0.15.3",
     "json5": "^1.0.0",
@@ -102,32 +108,35 @@
     "split-lines": "^1.1.0",
     "stack-chain": "^2.0.0",
     "stoppable": "^1.0.5",
+    "struct-fu": "^1.2.0",
     "tar-stream": "^1.5.5",
     "through2": "^2.0.3",
     "tmp": "^0.0.33",
     "uuid": "^3.0.1",
     "value-matcher": "^0.2.0",
+    "vhd-lib": "^0.0.0",
     "ws": "^5.0.0",
-    "xen-api": "^0.16.6",
+    "xen-api": "^0.16.9",
     "xml2js": "^0.4.19",
     "xo-acl-resolver": "^0.2.3",
     "xo-collection": "^0.4.1",
     "xo-common": "^0.1.1",
     "xo-remote-parser": "^0.3",
-    "xo-vmdk-to-vhd": "0.0.12"
+    "xo-vmdk-to-vhd": "0.1.0",
+    "yazl": "^2.4.3"
   },
   "devDependencies": {
-    "@babel/cli": "7.0.0-beta.40",
-    "@babel/core": "7.0.0-beta.40",
-    "@babel/plugin-proposal-decorators": "7.0.0-beta.40",
-    "@babel/plugin-proposal-export-default-from": "7.0.0-beta.40",
-    "@babel/plugin-proposal-export-namespace-from": "7.0.0-beta.40",
-    "@babel/plugin-proposal-function-bind": "7.0.0-beta.40",
-    "@babel/plugin-proposal-optional-chaining": "^7.0.0-beta.40",
-    "@babel/plugin-proposal-pipeline-operator": "^7.0.0-beta.40",
-    "@babel/plugin-proposal-throw-expressions": "^7.0.0-beta.40",
-    "@babel/preset-env": "7.0.0-beta.40",
-    "@babel/preset-flow": "7.0.0-beta.40",
+    "@babel/cli": "7.0.0-beta.44",
+    "@babel/core": "7.0.0-beta.44",
+    "@babel/plugin-proposal-decorators": "7.0.0-beta.44",
+    "@babel/plugin-proposal-export-default-from": "7.0.0-beta.44",
+    "@babel/plugin-proposal-export-namespace-from": "7.0.0-beta.44",
+    "@babel/plugin-proposal-function-bind": "7.0.0-beta.44",
+    "@babel/plugin-proposal-optional-chaining": "^7.0.0-beta.44",
+    "@babel/plugin-proposal-pipeline-operator": "^7.0.0-beta.44",
+    "@babel/plugin-proposal-throw-expressions": "^7.0.0-beta.44",
+    "@babel/preset-env": "7.0.0-beta.44",
+    "@babel/preset-flow": "7.0.0-beta.44",
     "babel-plugin-lodash": "^3.3.2",
     "cross-env": "^5.1.3",
     "index-modules": "^0.3.0",

packages/xo-server/src/ag2s.js

@@ -1,68 +0,0 @@
-import { Readable } from 'stream'
-
-// return the next value of the iterator but if it is a promise, resolve it and
-// reinject it
-//
-// this enables the use of a simple generator instead of an async generator
-// (which are less widely supported)
-const next = async (iterator, arg) => {
-  let cursor = iterator.next(arg)
-  if (typeof cursor.then === 'function') {
-    return cursor
-  }
-  let value
-  while (
-    !cursor.done &&
-    (value = cursor.value) != null &&
-    typeof value.then === 'function'
-  ) {
-    let success = false
-    try {
-      value = await value
-      success = true
-    } catch (error) {
-      cursor = iterator.throw(error)
-    }
-    if (success) {
-      cursor = iterator.next(value)
-    }
-  }
-  return cursor
-}
-
-// Create a readable stream from a generator
-//
-// generator can be async or can yield promises to wait for them
-export const createReadable = (generator, options) => {
-  const readable = new Readable(options)
-  readable._read = size => {
-    const iterator = generator(size)
-    readable._destroy = (error, cb) => {
-      iterator.throw(error)
-      cb(error)
-    }
-    let running = false
-    const read = (readable._read = async size => {
-      if (running) {
-        return
-      }
-      running = true
-      try {
-        let cursor
-        do {
-          cursor = await next(iterator, size)
-          if (cursor.done) {
-            return readable.push(null)
-          }
-        } while (readable.push(cursor.value))
-      } catch (error) {
-        readable.emit('error', error)
-      } finally {
-        running = false
-      }
-    })
-    return read(size)
-  }
-
-  return readable
-}

packages/xo-server/src/api/backup-ng.js

@@ -1,3 +1,7 @@
+import { basename } from 'path'
+
+import { safeDateFormat } from '../utils'
+
 export function createJob ({ schedules, ...job }) {
   job.userId = this.user.id
   return this.createBackupNgJob(job, schedules)
@@ -27,11 +31,25 @@ createJob.params = {
   settings: {
     type: 'object',
   },
+  srs: {
+    type: 'object',
+    optional: true,
+  },
   vms: {
     type: 'object',
   },
 }
 
+export function migrateLegacyJob ({ id }) {
+  return this.migrateLegacyBackupJob(id)
+}
+migrateLegacyJob.permission = 'admin'
+migrateLegacyJob.params = {
+  id: {
+    type: 'string',
+  },
+}
+
 export function deleteJob ({ id }) {
   return this.deleteBackupNgJob(id)
 }
@@ -71,6 +89,10 @@ editJob.params = {
     type: 'object',
     optional: true,
   },
+  srs: {
+    type: 'object',
+    optional: true,
+  },
   vms: {
     type: 'object',
     optional: true,
@@ -112,6 +134,14 @@ runJob.params = {
 
 // -----------------------------------------------------------------------------
 
+export function getAllLogs () {
+  return this.getBackupNgLogs()
+}
+
+getAllLogs.permission = 'admin'
+
+// -----------------------------------------------------------------------------
+
 export function deleteVmBackup ({ id }) {
   return this.deleteVmBackupNg(id)
 }
@@ -153,3 +183,88 @@ importVmBackup.params = {
     type: 'string',
   },
 }
+
+// -----------------------------------------------------------------------------
+
+export function listPartitions ({ remote, disk }) {
+  return this.listBackupNgDiskPartitions(remote, disk)
+}
+
+listPartitions.permission = 'admin'
+
+listPartitions.params = {
+  disk: {
+    type: 'string',
+  },
+  remote: {
+    type: 'string',
+  },
+}
+
+export function listFiles ({ remote, disk, partition, path }) {
+  return this.listBackupNgPartitionFiles(remote, disk, partition, path)
+}
+
+listFiles.permission = 'admin'
+
+listFiles.params = {
+  disk: {
+    type: 'string',
+  },
+  partition: {
+    type: 'string',
+    optional: true,
+  },
+  path: {
+    type: 'string',
+  },
+  remote: {
+    type: 'string',
+  },
+}
+
+async function handleFetchFiles (req, res, { remote, disk, partition, paths }) {
+  const zipStream = await this.fetchBackupNgPartitionFiles(
+    remote,
+    disk,
+    partition,
+    paths
+  )
+
+  res.setHeader('content-disposition', 'attachment')
+  res.setHeader('content-type', 'application/octet-stream')
+  return zipStream
+}
+
+export async function fetchFiles (params) {
+  const { paths } = params
+  let filename = `restore_${safeDateFormat(new Date())}`
+  if (paths.length === 1) {
+    filename += `_${basename(paths[0])}`
+  }
+  filename += '.zip'
+
+  return this.registerHttpRequest(handleFetchFiles, params, {
+    suffix: encodeURI(`/${filename}`),
+  }).then(url => ({ $getFrom: url }))
+}
+
+fetchFiles.permission = 'admin'
+
+fetchFiles.params = {
+  disk: {
+    type: 'string',
+  },
+  partition: {
+    optional: true,
+    type: 'string',
+  },
+  paths: {
+    items: { type: 'string' },
+    minLength: 1,
+    type: 'array',
+  },
+  remote: {
+    type: 'string',
+  },
+}

packages/xo-server/src/api/host.js

@@ -242,7 +242,7 @@ emergencyShutdownHost.resolve = {
 // -------------------------------------------------------------------
 
 export function stats ({ host, granularity }) {
-  return this.getXapiHostStats(host, granularity)
+  return this.getXapiHostStats(host._xapiId, granularity)
 }
 
 stats.description = 'returns statistic of the host'

packages/xo-server/src/api/log.js

@@ -1,19 +1,5 @@
-export async function get ({ namespace }) {
-  const logger = await this.getLogger(namespace)
-
-  return new Promise((resolve, reject) => {
-    const logs = {}
-
-    logger
-      .createReadStream()
-      .on('data', data => {
-        logs[data.key] = data.value
-      })
-      .on('end', () => {
-        resolve(logs)
-      })
-      .on('error', reject)
-  })
+export function get ({ namespace }) {
+  return this.getLogs(namespace)
 }
 
 get.description = 'returns logs list for one namespace'

packages/xo-server/src/api/sr.js

@@ -189,6 +189,7 @@ export async function createNfs ({
   server,
   serverPath,
   nfsVersion,
+  nfsOptions,
 }) {
   const xapi = this.getXapi(host)
 
@@ -202,6 +203,11 @@ export async function createNfs ({
     deviceConfig.nfsversion = nfsVersion
   }
 
+  //  if NFS options given
+  if (nfsVersion) {
+    deviceConfig.options = nfsVersion
+  }
+
   const srRef = await xapi.call(
     'SR.create',
     host._xapiRef,
@@ -226,6 +232,7 @@ createNfs.params = {
   server: { type: 'string' },
   serverPath: { type: 'string' },
   nfsVersion: { type: 'string', optional: true },
+  nfsOptions: { type: 'string', optional: true },
 }
 
 createNfs.resolve = {
@@ -241,7 +248,7 @@ export async function createHba ({ host, nameLabel, nameDescription, scsiId }) {
   const xapi = this.getXapi(host)
 
   const deviceConfig = {
-    scsiId,
+    SCSIid: scsiId,
   }
 
   const srRef = await xapi.call(
@@ -251,7 +258,7 @@ export async function createHba ({ host, nameLabel, nameDescription, scsiId }) {
     '0',
     nameLabel,
     nameDescription,
-    'lvmoohba', // SR LVM over HBA
+    'lvmohba', // SR LVM over HBA
     'user', // recommended by Citrix
     true,
     {}
@@ -366,7 +373,7 @@ export async function probeHba ({ host }) {
   let xml
 
   try {
-    await xapi.call('SR.probe', host._xapiRef, 'type', {})
+    await xapi.call('SR.probe', host._xapiRef, {}, 'lvmohba', {})
 
     throw new Error('the call above should have thrown an error')
   } catch (error) {
@@ -382,7 +389,7 @@ export async function probeHba ({ host }) {
     hbaDevices.push({
       hba: hbaDevice.hba.trim(),
       path: hbaDevice.path.trim(),
-      scsciId: hbaDevice.SCSIid.trim(),
+      scsiId: hbaDevice.SCSIid.trim(),
       size: hbaDevice.size.trim(),
       vendor: hbaDevice.vendor.trim(),
     })
@@ -487,8 +494,8 @@ export async function probeIscsiIqns ({
 
   // if we give user and password
   if (chapUser && chapPassword) {
-    deviceConfig.chapUser = chapUser
-    deviceConfig.chapPassword = chapPassword
+    deviceConfig.chapuser = chapUser
+    deviceConfig.chappassword = chapPassword
   }
 
   //  if we give another port than default iSCSI
@@ -668,6 +675,34 @@ probeIscsiExists.resolve = {
   host: ['host', 'host', 'administrate'],
 }
 
+// -------------------------------------------------------------------
+// This function helps to detect if this HBA already exists in XAPI
+// It returns a table of SR UUID, empty if no existing connections
+
+export async function probeHbaExists ({ host, scsiId }) {
+  const xapi = this.getXapi(host)
+
+  const deviceConfig = {
+    SCSIid: scsiId,
+  }
+
+  const xml = parseXml(
+    await xapi.call('SR.probe', host._xapiRef, deviceConfig, 'lvmohba', {})
+  )
+
+  // get the UUID of SR connected to this LUN
+  return ensureArray(xml.SRlist.SR).map(sr => ({ uuid: sr.UUID.trim() }))
+}
+
+probeHbaExists.params = {
+  host: { type: 'string' },
+  scsiId: { type: 'string' },
+}
+
+probeHbaExists.resolve = {
+  host: ['host', 'host', 'administrate'],
+}
+
 // -------------------------------------------------------------------
 // This function helps to detect if this NFS SR already exists in XAPI
 // It returns a table of SR UUID, empty if no existing connections
@@ -803,3 +838,23 @@ getUnhealthyVdiChainsLength.params = {
 getUnhealthyVdiChainsLength.resolve = {
   sr: ['id', 'SR', 'operate'],
 }
+
+// -------------------------------------------------------------------
+
+export function stats ({ sr, granularity }) {
+  return this.getXapiSrStats(sr._xapiId, granularity)
+}
+
+stats.description = 'returns statistic of the sr'
+
+stats.params = {
+  id: { type: 'string' },
+  granularity: {
+    type: 'string',
+    optional: true,
+  },
+}
+
+stats.resolve = {
+  sr: ['id', 'SR', 'view'],
+}

packages/xo-server/src/api/vm.js

@@ -151,16 +151,17 @@ export async function create (params) {
     await Promise.all([
       params.share
         ? Promise.all(
-          map((await this.getResourceSet(resourceSet)).subjects, subjectId =>
-            this.addAcl(subjectId, vm.id, 'admin')
+            map((await this.getResourceSet(resourceSet)).subjects, subjectId =>
+              this.addAcl(subjectId, vm.id, 'admin')
+            )
           )
-        )
         : this.addAcl(user.id, vm.id, 'admin'),
       xapi.xo.setData(xapiVm.$id, 'resourceSet', resourceSet),
     ])
   }
 
   for (const vif of xapiVm.$VIFs) {
+    xapi.xo.addObject(vif)
     await this.allocIpAddresses(
       vif.$id,
       concat(vif.ipv4_allowed, vif.ipv6_allowed)
@@ -322,6 +323,7 @@ create.resolve = {
 async function delete_ ({
   delete_disks, // eslint-disable-line camelcase
   force,
+  forceDeleteDefaultTemplate,
   vm,
 
   deleteDisks = delete_disks,
@@ -362,7 +364,12 @@ async function delete_ ({
     ;this.setVmResourceSet(vm._xapiId, null)::ignoreErrors()
   }
 
-  return xapi.deleteVm(vm._xapiId, deleteDisks, force)
+  return xapi.deleteVm(
+    vm._xapiId,
+    deleteDisks,
+    force,
+    forceDeleteDefaultTemplate
+  )
 }
 
 delete_.params = {
@@ -377,6 +384,11 @@ delete_.params = {
     optional: true,
     type: 'boolean',
   },
+
+  forceDeleteDefaultTemplate: {
+    optional: true,
+    type: 'boolean',
+  },
 }
 delete_.resolve = {
   vm: ['id', ['VM', 'VM-snapshot', 'VM-template'], 'administrate'],
@@ -585,6 +597,9 @@ set.params = {
 
   coresPerSocket: { type: ['string', 'number', 'null'], optional: true },
 
+  // Emulate HVM C000 PCI device for Windows Update to fetch or update PV drivers
+  hasVendorDevice: { type: 'boolean', optional: true },
+
   // Move the vm In to/Out of Self Service
   resourceSet: { type: ['string', 'null'], optional: true },
 
@@ -1339,7 +1354,7 @@ detachPci.resolve = {
 // -------------------------------------------------------------------
 
 export function stats ({ vm, granularity }) {
-  return this.getXapiVmStats(vm, granularity)
+  return this.getXapiVmStats(vm._xapiId, granularity)
 }
 
 stats.description = 'returns statistics about the VM'

packages/xo-server/src/api/xo.js

@@ -1,7 +1,6 @@
+import getStream from 'get-stream'
 import { forEach } from 'lodash'
 
-import { streamToBuffer } from '../utils'
-
 // ===================================================================
 
 export function clean () {
@@ -42,7 +41,9 @@ function handleGetAllObjects (req, res, { filter, limit }) {
 
 export function getAllObjects ({ filter, limit, ndjson = false }) {
   return ndjson
-    ? this.registerHttpRequest(handleGetAllObjects, { filter, limit }).then($getFrom => ({ $getFrom }))
+    ? this.registerHttpRequest(handleGetAllObjects, { filter, limit }).then(
+        $getFrom => ({ $getFrom })
+      )
     : this.getObjects({ filter, limit })
 }
 
@@ -59,7 +60,7 @@ getAllObjects.params = {
 export async function importConfig () {
   return {
     $sendTo: await this.registerHttpRequest(async (req, res) => {
-      await this.importConfig(JSON.parse(await streamToBuffer(req)))
+      await this.importConfig(JSON.parse(await getStream.buffer(req)))
 
       res.end('config successfully imported')
     }),

packages/xo-server/src/cli.js

@@ -0,0 +1,176 @@
+#!/usr/bin/env node
+
+const APP_NAME = 'xo-server'
+
+// Enable xo logs by default.
+if (process.env.DEBUG === undefined) {
+  process.env.DEBUG = 'app-conf,xo:*,-xo:api'
+}
+
+// -------------------------------------------------------------------
+
+require('@xen-orchestra/log/configure').configure([
+  {
+    filter: process.env.DEBUG,
+    level: 'warn',
+
+    transport: require('@xen-orchestra/log/transports/console').default(),
+  },
+])
+
+const { info, warn } = require('@xen-orchestra/log').createLogger('bootstrap')
+
+process.on('unhandledRejection', reason => {
+  warn('possibly unhandled rejection', reason)
+})
+process.on('warning', warning => {
+  warn('Node warning', warning)
+})
+;(({ prototype }) => {
+  const { emit } = prototype
+  prototype.emit = function (event, error) {
+    event === 'error' && !this.listenerCount(event)
+      ? warn('unhandled error event', error)
+      : emit.apply(this, arguments)
+  }
+})(require('events').EventEmitter)
+
+// Use Bluebird for all promises as it provides better performance and
+// less memory usage.
+const Bluebird = require('bluebird')
+Bluebird.config({
+  longStackTraces: true,
+  warnings: true,
+})
+global.Promise = Bluebird
+
+// -------------------------------------------------------------------
+
+const main = async args => {
+  if (args.includes('--help') || args.includes('-h')) {
+    const { name, version } = require('../package.json')
+    return console.log(`Usage: ${name} [--safe-mode]
+
+${name} v${version}`)
+  }
+
+  info('starting')
+
+  const config = await require('app-conf').load(APP_NAME, {
+    appDir: `${__dirname}/..`,
+    ignoreUnknownFormats: true,
+  })
+
+  // Print a message if deprecated entries are specified.
+  ;['users', 'servers'].forEach(entry => {
+    if (entry in config) {
+      warn(`${entry} configuration is deprecated`)
+    }
+  })
+
+  const httpServer = require('stoppable')(new (require('http-server-plus'))())
+
+  const readFile = Bluebird.promisify(require('fs').readFile)
+  await Promise.all(
+    config.http.listen.map(
+      async ({
+        certificate,
+        // The properties was called `certificate` before.
+        cert = certificate,
+        key,
+        ...opts
+      }) => {
+        if (cert !== undefined && key !== undefined) {
+          ;[opts.cert, opts.key] = await Promise.all([
+            readFile(cert),
+            readFile(key),
+          ])
+        }
+
+        try {
+          const niceAddress = await httpServer.listen(opts)
+          info(`web server listening on ${niceAddress}`)
+        } catch (error) {
+          if (error.niceAddress !== undefined) {
+            warn(`web server could not listen on ${error.niceAddress}`)
+
+            const { code } = error
+            if (code === 'EACCES') {
+              warn('  access denied.')
+              warn('  ports < 1024 are often reserved to privileges users.')
+            } else if (code === 'EADDRINUSE') {
+              warn('  address already in use.')
+            }
+          } else {
+            warn('web server could not listen', error)
+          }
+        }
+      }
+    )
+  )
+
+  // Now the web server is listening, drop privileges.
+  try {
+    const { group, user } = config
+    if (group !== undefined) {
+      process.setgid(group)
+      info('group changed to', group)
+    }
+    if (user !== undefined) {
+      process.setuid(user)
+      info('user changed to', user)
+    }
+  } catch (error) {
+    warn('failed to change group/user', error)
+  }
+
+  const child = require('child_process').fork(require.resolve('./worker.js'))
+  child.send([''])
+
+  const App = require('./xo').default
+  const app = new App({
+    appName: APP_NAME,
+    config,
+    httpServer,
+    safeMode: require('lodash/includes')(args, '--safe-mode'),
+  })
+
+  // Register web server close on XO stop.
+  app.on('stop', () => Bluebird.fromCallback(cb => httpServer.stop(cb)))
+
+  await app.start()
+
+  // Trigger a clean job.
+  await app.clean()
+
+  // Gracefully shutdown on signals.
+  //
+  // TODO: implements a timeout? (or maybe it is the services launcher
+  // responsibility?)
+  require('lodash/forEach')(['SIGINT', 'SIGTERM'], signal => {
+    let alreadyCalled = false
+
+    process.on(signal, () => {
+      if (alreadyCalled) {
+        warn('forced exit')
+        process.exit(1)
+      }
+      alreadyCalled = true
+
+      info(`${signal} caught, closing…`)
+      app.stop()
+    })
+  })
+
+  await require('event-to-promise')(app, 'stopped')
+}
+main(process.argv.slice(2)).then(
+  () => info('bye :-)'),
+  error => {
+    if (typeof error === 'number') {
+      process.exitCode = error
+    } else {
+      warn('fatal error', error)
+    }
+  }
+)

packages/xo-server/src/decorators.spec.js

@@ -8,7 +8,7 @@ describe('debounce()', () => {
   let i
 
   class Foo {
-    @debounce(1e1)
+    @debounce(10)
     foo () {
       ++i
     }
@@ -18,22 +18,28 @@ describe('debounce()', () => {
     i = 0
   })
 
-  it('works', done => {
-    const foo = new Foo()
+  it('works', () => {
+    const savedNow = Date.now
+    try {
+      const now = Date.now()
+      const mockDate = jest.fn()
+      Date.now = mockDate
+      const foo = new Foo()
+      expect(i).toBe(0)
 
-    expect(i).toBe(0)
+      mockDate.mockReturnValueOnce(now)
+      foo.foo()
+      expect(i).toBe(1)
 
-    foo.foo()
-    expect(i).toBe(1)
+      mockDate.mockReturnValueOnce(now + 2)
+      foo.foo()
+      expect(i).toBe(1)
 
-    foo.foo()
-    expect(i).toBe(1)
-
-    setTimeout(() => {
+      mockDate.mockReturnValueOnce(now + 2 + 10)
       foo.foo()
       expect(i).toBe(2)
-
-      done()
-    }, 2e1)
+    } finally {
+      Date.now = savedNow
+    }
   })
 })

packages/xo-server/src/front/index.js

@@ -0,0 +1,348 @@
+const compilePug = require('pug').compile
+const createProxyServer = require('http-proxy').createServer
+const JsonRpcPeer = require('json-rpc-peer')
+const LocalStrategy = require('passport-local').Strategy
+const parseCookies = require('cookie').parse
+const Passport = require('passport')
+const serveStatic = require('serve-static')
+const WebSocket = require('ws')
+const { fromCallback } = require('promise-toolbox')
+const { invalidCredentials } = require('xo-common/api-errors')
+const { readFile } = require('fs')
+
+const proxyConsole = require('../proxy-console')
+
+const { debug, warn } = require('@xen-orchestra/log').createLogger('front')
+
+function createExpressApp ({ http: config }, httpServer) {
+  const express = require('express')()
+
+  express.use(require('helmet')())
+
+  if (config.redirectToHttps) {
+    const https = config.listen.find(
+      _ =>
+        _.port !== undefined &&
+        (_.cert !== undefined || _.certificate !== undefined)
+    )
+
+    if (https === undefined) {
+      warn('could not setup HTTPs redirection: no HTTPs config found')
+    } else {
+      const { port } = https
+      express.use((req, res, next) => {
+        if (req.secure) {
+          return next()
+        }
+
+        res.redirect(`https://${req.hostname}:${port}${req.originalUrl}`)
+      })
+    }
+  }
+
+  Object.keys(config.mounts).forEach(url => {
+    const paths = config.mounts[url]
+    ;(Array.isArray(paths) ? paths : [paths]).forEach(path => {
+      debug('Setting up %s → %s', url, path)
+
+      express.use(url, serveStatic(path))
+    })
+  })
+
+  return express
+}
+
+function setUpApi (config, httpServer, xo) {
+  const webSocketServer = new WebSocket.Server({
+    noServer: true,
+  })
+  xo.on('stop', () => fromCallback(cb => webSocketServer.close(cb)))
+
+  const onConnection = (socket, upgradeReq) => {
+    const { remoteAddress } = upgradeReq.socket
+
+    debug('+ WebSocket connection (%s)', remoteAddress)
+
+    // Create the abstract XO object for this connection.
+    const connection = xo.createUserConnection()
+    connection.once('close', () => {
+      socket.close()
+    })
+
+    // Create the JSON-RPC server for this connection.
+    const jsonRpc = new JsonRpcPeer(message => {
+      if (message.type === 'request') {
+        return xo.callApiMethod(connection, message.method, message.params)
+      }
+    })
+    connection.notify = jsonRpc.notify.bind(jsonRpc)
+
+    // Close the XO connection with this WebSocket.
+    socket.once('close', () => {
+      debug('- WebSocket connection (%s)', remoteAddress)
+
+      connection.close()
+    })
+
+    // Connect the WebSocket to the JSON-RPC server.
+    socket.on('message', message => {
+      jsonRpc.write(message)
+    })
+
+    const onSend = error => {
+      if (error) {
+        warn('WebSocket send:', error.stack)
+      }
+    }
+    jsonRpc.on('data', data => {
+      // The socket may have been closed during the API method
+      // execution.
+      if (socket.readyState === WebSocket.OPEN) {
+        socket.send(data, onSend)
+      }
+    })
+  }
+  httpServer.on('upgrade', (req, socket, head) => {
+    if (req.url === '/api/') {
+      webSocketServer.handleUpgrade(req, socket, head, ws =>
+        onConnection(ws, req)
+      )
+    }
+  })
+}
+
+function setUpConsoleProxy (httpServer, xo) {
+  const webSocketServer = new WebSocket.Server({
+    noServer: true,
+  })
+
+  const CONSOLE_PROXY_PATH_RE = /^\/api\/consoles\/(.*)$/
+  httpServer.on('upgrade', async (req, socket, head) => {
+    const matches = CONSOLE_PROXY_PATH_RE.exec(req.url)
+    if (!matches) {
+      return
+    }
+
+    const [, id] = matches
+    try {
+      // TODO: factorize permissions checking in an Express middleware.
+      {
+        const { token } = parseCookies(req.headers.cookie)
+
+        const user = await xo.authenticateUser({ token })
+        if (!await xo.hasPermissions(user.id, [[id, 'operate']])) {
+          throw invalidCredentials()
+        }
+
+        const { remoteAddress } = socket
+        debug('+ Console proxy (%s - %s)', user.name, remoteAddress)
+        socket.on('close', () => {
+          debug('- Console proxy (%s - %s)', user.name, remoteAddress)
+        })
+      }
+
+      const xapi = xo.getXapi(id, ['VM', 'VM-controller'])
+      const vmConsole = xapi.getVmConsole(id)
+
+      // FIXME: lost connection due to VM restart is not detected.
+      webSocketServer.handleUpgrade(req, socket, head, connection => {
+        proxyConsole(connection, vmConsole, xapi.sessionId)
+      })
+    } catch (error) {
+      console.error((error && error.stack) || error)
+    }
+  })
+}
+
+async function setUpPassport (express, xo) {
+  // necessary for connect-flash
+  express.use(require('cookie-parser')())
+  express.use(
+    require('express-session')({
+      resave: false,
+      saveUninitialized: false,
+
+      // TODO: should be in the config file.
+      secret: 'CLWguhRZAZIXZcbrMzHCYmefxgweItKnS',
+    })
+  )
+
+  // necessary for Passport to display error messages
+  express.use(require('connect-flash')())
+
+  // necessary for Passport to access the username and password from the sign
+  // in form
+  express.use(require('body-parser').urlencoded({ extended: false }))
+
+  express.use(Passport.initialize())
+
+  const strategies = { __proto__: null }
+  xo.registerPassportStrategy = strategy => {
+    Passport.use(strategy)
+
+    const { name } = strategy
+    if (name !== 'local') {
+      strategies[name] = strategy.label || name
+    }
+  }
+
+  // Registers the sign in form.
+  const signInPage = compilePug(
+    await fromCallback(cb => readFile(`${__dirname}/../signin.pug`, cb))
+  )
+  express.get('/signin', (req, res, next) => {
+    res.send(
+      signInPage({
+        error: req.flash('error')[0],
+        strategies,
+      })
+    )
+  })
+
+  express.get('/signout', (req, res) => {
+    res.clearCookie('token')
+    res.redirect('/')
+  })
+
+  const SIGNIN_STRATEGY_RE = /^\/signin\/([^/]+)(\/callback)?(:?\?.*)?$/
+  express.use(async (req, res, next) => {
+    const { url } = req
+    const matches = url.match(SIGNIN_STRATEGY_RE)
+
+    if (matches !== null) {
+      return Passport.authenticate(matches[1], async (err, user, info) => {
+        if (err) {
+          return next(err)
+        }
+
+        if (!user) {
+          req.flash('error', info ? info.message : 'Invalid credentials')
+          return res.redirect('/signin')
+        }
+
+        // The cookie will be set in via the next request because some
+        // browsers do not save cookies on redirect.
+        req.flash(
+          'token',
+          (await xo.createAuthenticationToken({ userId: user.id })).id
+        )
+
+        // The session is only persistent for internal provider and if 'Remember me' box is checked
+        req.flash(
+          'session-is-persistent',
+          matches[1] === 'local' && req.body['remember-me'] === 'on'
+        )
+
+        res.redirect(req.flash('return-url')[0] || '/')
+      })(req, res, next)
+    }
+
+    const token = req.flash('token')[0]
+
+    if (token) {
+      const isPersistent = req.flash('session-is-persistent')[0]
+
+      if (isPersistent) {
+        // Persistent cookie ? => 1 year
+        res.cookie('token', token, { maxAge: 1000 * 60 * 60 * 24 * 365 })
+      } else {
+        // Non-persistent : external provider as Github, Twitter...
+        res.cookie('token', token)
+      }
+
+      next()
+    } else if (req.cookies.token) {
+      next()
+    } else if (
+      /favicon|fontawesome|images|styles|\.(?:css|jpg|png)$/.test(url)
+    ) {
+      next()
+    } else {
+      req.flash('return-url', url)
+      return res.redirect('/signin')
+    }
+  })
+
+  // Install the local strategy.
+  xo.registerPassportStrategy(
+    new LocalStrategy(async (username, password, done) => {
+      try {
+        const user = await xo.authenticateUser({ username, password })
+        done(null, user)
+      } catch (error) {
+        done(null, false, { message: error.message })
+      }
+    })
+  )
+}
+
+function setUpProxies ({ http: { proxies } }, httpServer, express, xo) {
+  if (proxies === undefined) {
+    return
+  }
+
+  const proxy = createProxyServer({
+    ignorePath: true,
+  }).on('error', error => console.error(error))
+
+  const prefixes = Object.keys(proxies).sort((a, b) => a.length - b.length)
+  const n = prefixes.length
+
+  // HTTP request proxy.
+  express.use((req, res, next) => {
+    const { url } = req
+
+    for (let i = 0; i < n; ++i) {
+      const prefix = prefixes[i]
+      if (url.startsWith(prefix)) {
+        const target = proxies[prefix]
+
+        proxy.web(req, res, {
+          target: target + url.slice(prefix.length),
+        })
+
+        return
+      }
+    }
+
+    next()
+  })
+
+  // WebSocket proxy.
+  const webSocketServer = new WebSocket.Server({
+    noServer: true,
+  })
+  xo.on('stop', () => fromCallback(cb => webSocketServer.close(cb)))
+
+  httpServer.on('upgrade', (req, socket, head) => {
+    const { url } = req
+
+    for (let i = 0; i < n; ++i) {
+      const prefix = prefixes[i]
+      if (url.startsWith(prefix)) {
+        const target = proxies[prefix]
+
+        proxy.ws(req, socket, head, {
+          target: target + url.slice(prefix.length),
+        })
+
+        return
+      }
+    }
+  })
+}
+
+export default async function main ({ config, httpServer, safeMode }) {
+  const express = createExpressApp(config, httpServer)
+
+  setUpProxies(config, httpServer, express, xo)
+
+  setUpApi(config, httpServer, xo)
+
+  // must be set up before the API
+  setUpConsoleProxy(httpServer, xo)
+
+  await setUpPassport(express, xo)
+
+  // TODO: express.use(xo._handleHttpRequest.bind(xo))
+}

packages/xo-server/src/index.js

@@ -1,651 +0,0 @@
-import appConf from 'app-conf'
-import bind from 'lodash/bind'
-import blocked from 'blocked'
-import createExpress from 'express'
-import createLogger from 'debug'
-import has from 'lodash/has'
-import helmet from 'helmet'
-import includes from 'lodash/includes'
-import proxyConsole from './proxy-console'
-import serveStatic from 'serve-static'
-import startsWith from 'lodash/startsWith'
-import stoppable from 'stoppable'
-import WebSocket from 'ws'
-import { compile as compilePug } from 'pug'
-import { createServer as createProxyServer } from 'http-proxy'
-import { fromEvent } from 'promise-toolbox'
-import { join as joinPath } from 'path'
-
-import JsonRpcPeer from 'json-rpc-peer'
-import { invalidCredentials } from 'xo-common/api-errors'
-import { ensureDir, readdir, readFile } from 'fs-extra'
-
-import WebServer from 'http-server-plus'
-import Xo from './xo'
-import {
-  forEach,
-  isArray,
-  isFunction,
-  mapToArray,
-  pFromCallback,
-} from './utils'
-
-import bodyParser from 'body-parser'
-import connectFlash from 'connect-flash'
-import cookieParser from 'cookie-parser'
-import expressSession from 'express-session'
-import passport from 'passport'
-import { parse as parseCookies } from 'cookie'
-import { Strategy as LocalStrategy } from 'passport-local'
-
-// ===================================================================
-
-const debug = createLogger('xo:main')
-
-const warn = (...args) => {
-  console.warn('[Warn]', ...args)
-}
-
-// ===================================================================
-
-const DEPRECATED_ENTRIES = ['users', 'servers']
-
-async function loadConfiguration () {
-  const config = await appConf.load('xo-server', {
-    appDir: joinPath(__dirname, '..'),
-    ignoreUnknownFormats: true,
-  })
-
-  debug('Configuration loaded.')
-
-  // Print a message if deprecated entries are specified.
-  forEach(DEPRECATED_ENTRIES, entry => {
-    if (has(config, entry)) {
-      warn(`${entry} configuration is deprecated.`)
-    }
-  })
-
-  return config
-}
-
-// ===================================================================
-
-function createExpressApp () {
-  const app = createExpress()
-
-  app.use(helmet())
-
-  // Registers the cookie-parser and express-session middlewares,
-  // necessary for connect-flash.
-  app.use(cookieParser())
-  app.use(
-    expressSession({
-      resave: false,
-      saveUninitialized: false,
-
-      // TODO: should be in the config file.
-      secret: 'CLWguhRZAZIXZcbrMzHCYmefxgweItKnS',
-    })
-  )
-
-  // Registers the connect-flash middleware, necessary for Passport to
-  // display error messages.
-  app.use(connectFlash())
-
-  // Registers the body-parser middleware, necessary for Passport to
-  // access the username and password from the sign in form.
-  app.use(bodyParser.urlencoded({ extended: false }))
-
-  // Registers Passport's middlewares.
-  app.use(passport.initialize())
-
-  return app
-}
-
-async function setUpPassport (express, xo) {
-  const strategies = { __proto__: null }
-  xo.registerPassportStrategy = strategy => {
-    passport.use(strategy)
-
-    const { name } = strategy
-    if (name !== 'local') {
-      strategies[name] = strategy.label || name
-    }
-  }
-
-  // Registers the sign in form.
-  const signInPage = compilePug(
-    await readFile(joinPath(__dirname, '..', 'signin.pug'))
-  )
-  express.get('/signin', (req, res, next) => {
-    res.send(
-      signInPage({
-        error: req.flash('error')[0],
-        strategies,
-      })
-    )
-  })
-
-  express.get('/signout', (req, res) => {
-    res.clearCookie('token')
-    res.redirect('/')
-  })
-
-  const SIGNIN_STRATEGY_RE = /^\/signin\/([^/]+)(\/callback)?(:?\?.*)?$/
-  express.use(async (req, res, next) => {
-    const { url } = req
-    const matches = url.match(SIGNIN_STRATEGY_RE)
-
-    if (matches) {
-      return passport.authenticate(matches[1], async (err, user, info) => {
-        if (err) {
-          return next(err)
-        }
-
-        if (!user) {
-          req.flash('error', info ? info.message : 'Invalid credentials')
-          return res.redirect('/signin')
-        }
-
-        // The cookie will be set in via the next request because some
-        // browsers do not save cookies on redirect.
-        req.flash(
-          'token',
-          (await xo.createAuthenticationToken({ userId: user.id })).id
-        )
-
-        // The session is only persistent for internal provider and if 'Remember me' box is checked
-        req.flash(
-          'session-is-persistent',
-          matches[1] === 'local' && req.body['remember-me'] === 'on'
-        )
-
-        res.redirect(req.flash('return-url')[0] || '/')
-      })(req, res, next)
-    }
-
-    const token = req.flash('token')[0]
-
-    if (token) {
-      const isPersistent = req.flash('session-is-persistent')[0]
-
-      if (isPersistent) {
-        // Persistent cookie ? => 1 year
-        res.cookie('token', token, { maxAge: 1000 * 60 * 60 * 24 * 365 })
-      } else {
-        // Non-persistent : external provider as Github, Twitter...
-        res.cookie('token', token)
-      }
-
-      next()
-    } else if (req.cookies.token) {
-      next()
-    } else if (
-      /favicon|fontawesome|images|styles|\.(?:css|jpg|png)$/.test(url)
-    ) {
-      next()
-    } else {
-      req.flash('return-url', url)
-      return res.redirect('/signin')
-    }
-  })
-
-  // Install the local strategy.
-  xo.registerPassportStrategy(
-    new LocalStrategy(async (username, password, done) => {
-      try {
-        const user = await xo.authenticateUser({ username, password })
-        done(null, user)
-      } catch (error) {
-        done(null, false, { message: error.message })
-      }
-    })
-  )
-}
-
-// ===================================================================
-
-async function registerPlugin (pluginPath, pluginName) {
-  const plugin = require(pluginPath)
-  const { description, version = 'unknown' } = (() => {
-    try {
-      return require(pluginPath + '/package.json')
-    } catch (_) {
-      return {}
-    }
-  })()
-
-  // Supports both “normal” CommonJS and Babel's ES2015 modules.
-  const {
-    default: factory = plugin,
-    configurationSchema,
-    configurationPresets,
-    testSchema,
-  } = plugin
-
-  // The default export can be either a factory or directly a plugin
-  // instance.
-  const instance = isFunction(factory)
-    ? factory({
-      xo: this,
-      getDataDir: () => {
-        const dir = `${this._config.datadir}/${pluginName}`
-        return ensureDir(dir).then(() => dir)
-      },
-    })
-    : factory
-
-  await this.registerPlugin(
-    pluginName,
-    instance,
-    configurationSchema,
-    configurationPresets,
-    description,
-    testSchema,
-    version
-  )
-}
-
-const debugPlugin = createLogger('xo:plugin')
-
-function registerPluginWrapper (pluginPath, pluginName) {
-  debugPlugin('register %s', pluginName)
-
-  return registerPlugin.call(this, pluginPath, pluginName).then(
-    () => {
-      debugPlugin(`successfully register ${pluginName}`)
-    },
-    error => {
-      debugPlugin(`failed register ${pluginName}`)
-      debugPlugin(error)
-    }
-  )
-}
-
-const PLUGIN_PREFIX = 'xo-server-'
-const PLUGIN_PREFIX_LENGTH = PLUGIN_PREFIX.length
-
-async function registerPluginsInPath (path) {
-  const files = await readdir(path).catch(error => {
-    if (error.code === 'ENOENT') {
-      return []
-    }
-    throw error
-  })
-
-  await Promise.all(
-    mapToArray(files, name => {
-      if (startsWith(name, PLUGIN_PREFIX)) {
-        return registerPluginWrapper.call(
-          this,
-          `${path}/${name}`,
-          name.slice(PLUGIN_PREFIX_LENGTH)
-        )
-      }
-    })
-  )
-}
-
-async function registerPlugins (xo) {
-  await Promise.all(
-    mapToArray(
-      [`${__dirname}/../node_modules/`, '/usr/local/lib/node_modules/'],
-      xo::registerPluginsInPath
-    )
-  )
-}
-
-// ===================================================================
-
-async function makeWebServerListen (
-  webServer,
-  {
-    certificate,
-
-    // The properties was called `certificate` before.
-    cert = certificate,
-
-    key,
-    ...opts
-  }
-) {
-  if (cert && key) {
-    ;[opts.cert, opts.key] = await Promise.all([readFile(cert), readFile(key)])
-  }
-  try {
-    const niceAddress = await webServer.listen(opts)
-    debug(`Web server listening on ${niceAddress}`)
-  } catch (error) {
-    if (error.niceAddress) {
-      warn(`Web server could not listen on ${error.niceAddress}`)
-
-      const { code } = error
-      if (code === 'EACCES') {
-        warn('  Access denied.')
-        warn('  Ports < 1024 are often reserved to privileges users.')
-      } else if (code === 'EADDRINUSE') {
-        warn('  Address already in use.')
-      }
-    } else {
-      warn('Web server could not listen:', error.message)
-    }
-  }
-}
-
-async function createWebServer ({ listen, listenOptions }) {
-  const webServer = stoppable(new WebServer())
-
-  await Promise.all(
-    mapToArray(listen, opts =>
-      makeWebServerListen(webServer, { ...listenOptions, ...opts })
-    )
-  )
-
-  return webServer
-}
-
-// ===================================================================
-
-const setUpProxies = (express, opts, xo) => {
-  if (!opts) {
-    return
-  }
-
-  const proxy = createProxyServer({
-    ignorePath: true,
-  }).on('error', error => console.error(error))
-
-  // TODO: sort proxies by descending prefix length.
-
-  // HTTP request proxy.
-  express.use((req, res, next) => {
-    const { url } = req
-
-    for (const prefix in opts) {
-      if (startsWith(url, prefix)) {
-        const target = opts[prefix]
-
-        proxy.web(req, res, {
-          target: target + url.slice(prefix.length),
-        })
-
-        return
-      }
-    }
-
-    next()
-  })
-
-  // WebSocket proxy.
-  const webSocketServer = new WebSocket.Server({
-    noServer: true,
-  })
-  xo.on('stop', () => pFromCallback(cb => webSocketServer.close(cb)))
-
-  express.on('upgrade', (req, socket, head) => {
-    const { url } = req
-
-    for (const prefix in opts) {
-      if (startsWith(url, prefix)) {
-        const target = opts[prefix]
-
-        proxy.ws(req, socket, head, {
-          target: target + url.slice(prefix.length),
-        })
-
-        return
-      }
-    }
-  })
-}
-
-// ===================================================================
-
-const setUpStaticFiles = (express, opts) => {
-  forEach(opts, (paths, url) => {
-    if (!isArray(paths)) {
-      paths = [paths]
-    }
-
-    forEach(paths, path => {
-      debug('Setting up %s → %s', url, path)
-
-      express.use(url, serveStatic(path))
-    })
-  })
-}
-
-// ===================================================================
-
-const setUpApi = (webServer, xo, verboseLogsOnErrors) => {
-  const webSocketServer = new WebSocket.Server({
-    noServer: true,
-  })
-  xo.on('stop', () => pFromCallback(cb => webSocketServer.close(cb)))
-
-  const onConnection = (socket, upgradeReq) => {
-    const { remoteAddress } = upgradeReq.socket
-
-    debug('+ WebSocket connection (%s)', remoteAddress)
-
-    // Create the abstract XO object for this connection.
-    const connection = xo.createUserConnection()
-    connection.once('close', () => {
-      socket.close()
-    })
-
-    // Create the JSON-RPC server for this connection.
-    const jsonRpc = new JsonRpcPeer(message => {
-      if (message.type === 'request') {
-        return xo.callApiMethod(connection, message.method, message.params)
-      }
-    })
-    connection.notify = bind(jsonRpc.notify, jsonRpc)
-
-    // Close the XO connection with this WebSocket.
-    socket.once('close', () => {
-      debug('- WebSocket connection (%s)', remoteAddress)
-
-      connection.close()
-    })
-
-    // Connect the WebSocket to the JSON-RPC server.
-    socket.on('message', message => {
-      jsonRpc.write(message)
-    })
-
-    const onSend = error => {
-      if (error) {
-        warn('WebSocket send:', error.stack)
-      }
-    }
-    jsonRpc.on('data', data => {
-      // The socket may have been closed during the API method
-      // execution.
-      if (socket.readyState === WebSocket.OPEN) {
-        socket.send(data, onSend)
-      }
-    })
-  }
-  webServer.on('upgrade', (req, socket, head) => {
-    if (req.url === '/api/') {
-      webSocketServer.handleUpgrade(req, socket, head, ws =>
-        onConnection(ws, req)
-      )
-    }
-  })
-}
-
-// ===================================================================
-
-const CONSOLE_PROXY_PATH_RE = /^\/api\/consoles\/(.*)$/
-
-const setUpConsoleProxy = (webServer, xo) => {
-  const webSocketServer = new WebSocket.Server({
-    noServer: true,
-  })
-  xo.on('stop', () => pFromCallback(cb => webSocketServer.close(cb)))
-
-  webServer.on('upgrade', async (req, socket, head) => {
-    const matches = CONSOLE_PROXY_PATH_RE.exec(req.url)
-    if (!matches) {
-      return
-    }
-
-    const [, id] = matches
-    try {
-      // TODO: factorize permissions checking in an Express middleware.
-      {
-        const { token } = parseCookies(req.headers.cookie)
-
-        const user = await xo.authenticateUser({ token })
-        if (!await xo.hasPermissions(user.id, [[id, 'operate']])) {
-          throw invalidCredentials()
-        }
-
-        const { remoteAddress } = socket
-        debug('+ Console proxy (%s - %s)', user.name, remoteAddress)
-        socket.on('close', () => {
-          debug('- Console proxy (%s - %s)', user.name, remoteAddress)
-        })
-      }
-
-      const xapi = xo.getXapi(id, ['VM', 'VM-controller'])
-      const vmConsole = xapi.getVmConsole(id)
-
-      // FIXME: lost connection due to VM restart is not detected.
-      webSocketServer.handleUpgrade(req, socket, head, connection => {
-        proxyConsole(connection, vmConsole, xapi.sessionId)
-      })
-    } catch (error) {
-      console.error((error && error.stack) || error)
-    }
-  })
-}
-
-// ===================================================================
-
-const USAGE = (({ name, version }) => `Usage: ${name} [--safe-mode]
-
-${name} v${version}`)(require('../package.json'))
-
-// ===================================================================
-
-export default async function main (args) {
-  if (includes(args, '--help') || includes(args, '-h')) {
-    return USAGE
-  }
-
-  {
-    const debug = createLogger('xo:perf')
-    blocked(ms => {
-      debug('blocked for %sms', ms | 0)
-    })
-  }
-
-  const config = await loadConfiguration()
-
-  const webServer = await createWebServer(config.http)
-
-  // Now the web server is listening, drop privileges.
-  try {
-    const { user, group } = config
-    if (group) {
-      process.setgid(group)
-      debug('Group changed to', group)
-    }
-    if (user) {
-      process.setuid(user)
-      debug('User changed to', user)
-    }
-  } catch (error) {
-    warn('Failed to change user/group:', error)
-  }
-
-  // Creates main object.
-  const xo = new Xo(config)
-
-  // Register web server close on XO stop.
-  xo.on('stop', () => pFromCallback(cb => webServer.stop(cb)))
-
-  // Connects to all registered servers.
-  await xo.start()
-
-  // Trigger a clean job.
-  await xo.clean()
-
-  // Express is used to manage non WebSocket connections.
-  const express = createExpressApp()
-
-  if (config.http.redirectToHttps) {
-    let port
-    forEach(config.http.listen, listen => {
-      if (listen.port && (listen.cert || listen.certificate)) {
-        port = listen.port
-        return false
-      }
-    })
-
-    if (port === undefined) {
-      warn('Could not setup HTTPs redirection: no HTTPs port found')
-    } else {
-      express.use((req, res, next) => {
-        if (req.secure) {
-          return next()
-        }
-
-        res.redirect(`https://${req.hostname}:${port}${req.originalUrl}`)
-      })
-    }
-  }
-
-  // Must be set up before the API.
-  setUpConsoleProxy(webServer, xo)
-
-  // Must be set up before the API.
-  express.use(bind(xo._handleHttpRequest, xo))
-
-  // Everything above is not protected by the sign in, allowing xo-cli
-  // to work properly.
-  await setUpPassport(express, xo)
-
-  // Attaches express to the web server.
-  webServer.on('request', express)
-  webServer.on('upgrade', (req, socket, head) => {
-    express.emit('upgrade', req, socket, head)
-  })
-
-  // Must be set up before the static files.
-  setUpApi(webServer, xo, config.verboseApiLogsOnErrors)
-
-  setUpProxies(express, config.http.proxies, xo)
-
-  setUpStaticFiles(express, config.http.mounts)
-
-  if (!includes(args, '--safe-mode')) {
-    await registerPlugins(xo)
-  }
-
-  // Gracefully shutdown on signals.
-  //
-  // TODO: implements a timeout? (or maybe it is the services launcher
-  // responsibility?)
-  forEach(['SIGINT', 'SIGTERM'], signal => {
-    let alreadyCalled = false
-
-    process.on(signal, () => {
-      if (alreadyCalled) {
-        warn('forced exit')
-        process.exit(1)
-      }
-      alreadyCalled = true
-
-      debug('%s caught, closing…', signal)
-      xo.stop()
-    })
-  })
-
-  await fromEvent(xo, 'stopped')
-
-  debug('bye :-)')
-}

packages/xo-server/src/lvm.js

@@ -1,16 +1,15 @@
 import execa from 'execa'
 import splitLines from 'split-lines'
 import { createParser } from 'parse-pairs'
-import { isArray, map } from 'lodash'
 
 // ===================================================================
 
 const parse = createParser({
   keyTransform: key => key.slice(5).toLowerCase(),
 })
-const makeFunction = command => (fields, ...args) =>
-  execa
-    .stdout(command, [
+const makeFunction = command => async (fields, ...args) => {
+  return splitLines(
+    await execa.stdout(command, [
       '--noheading',
       '--nosuffix',
       '--nameprefixes',
@@ -21,17 +20,8 @@ const makeFunction = command => (fields, ...args) =>
       String(fields),
       ...args,
     ])
-    .then(stdout =>
-      map(
-        splitLines(stdout),
-        isArray(fields)
-          ? parse
-          : line => {
-            const data = parse(line)
-            return data[fields]
-          }
-      )
-    )
+  ).map(Array.isArray(fields) ? parse : line => parse(line)[fields])
+}
 
 export const lvs = makeFunction('lvs')
 export const pvs = makeFunction('pvs')

packages/xo-server/src/schemas/log/jobStart.js

@@ -16,6 +16,11 @@ export default {
     key: {
       type: 'string',
     },
+    type: {
+      default: 'call',
+      enum: ['backup', 'call'],
+    },
+    data: {},
   },
-  required: ['event', 'userId', 'jobId', 'key'],
+  required: ['event', 'userId', 'jobId'],
 }

packages/xo-server/src/schemas/log/taskEnd.js

@@ -0,0 +1,18 @@
+export default {
+  $schema: 'http://json-schema.org/draft-04/schema#',
+  type: 'object',
+  properties: {
+    event: {
+      enum: ['task.end'],
+    },
+    taskId: {
+      type: 'string',
+      description: 'identifier of this task',
+    },
+    status: {
+      enum: ['canceled', 'failure', 'success'],
+    },
+    result: {},
+  },
+  required: ['event', 'taskId', 'status'],
+}

packages/xo-server/src/schemas/log/taskStart.js

@@ -0,0 +1,15 @@
+export default {
+  $schema: 'http://json-schema.org/draft-04/schema#',
+  type: 'object',
+  properties: {
+    event: {
+      enum: ['task.start'],
+    },
+    parentId: {
+      type: 'string',
+      description: 'identifier of the parent task or job',
+    },
+    data: {},
+  },
+  required: ['event'],
+}

packages/xo-server/src/stream-to-new-buffer.js

@@ -1,28 +0,0 @@
-const streamToNewBuffer = stream =>
-  new Promise((resolve, reject) => {
-    const chunks = []
-    let length = 0
-
-    const onData = chunk => {
-      chunks.push(chunk)
-      length += chunk.length
-    }
-    stream.on('data', onData)
-
-    const clean = () => {
-      stream.removeListener('data', onData)
-      stream.removeListener('end', onEnd)
-      stream.removeListener('error', onError)
-    }
-    const onEnd = () => {
-      resolve(Buffer.concat(chunks, length))
-      clean()
-    }
-    stream.on('end', onEnd)
-    const onError = error => {
-      reject(error)
-      clean()
-    }
-    stream.on('error', onError)
-  })
-export { streamToNewBuffer as default }

packages/xo-server/src/utils.js

@@ -55,10 +55,6 @@ export const asyncMap = (collection, iteratee) => {
 
 // -------------------------------------------------------------------
 
-export streamToBuffer from './stream-to-new-buffer'
-
-// -------------------------------------------------------------------
-
 export function camelToSnakeCase (string) {
   return string.replace(
     /([a-z0-9])([A-Z])/g,