feat(xen-api): add HTTP proxy support (#5958)

See #5436

Using an IP address as HTTPS proxy show this warning: `DeprecationWarning: Setting the TLS ServerName to an IP address is not permitted by RFC 6066`

The corresponding issue is there : TooTallNate/node-https-proxy-agent#127

CHANGELOG.unreleased.md

@@ -11,6 +11,7 @@
 - [Jobs] Ability to copy a job ID (PR [#5951](https://github.com/vatesfr/xen-orchestra/pull/5951))
 - [Host/advanced] Add button to enable/disable the host (PR [#5952](https://github.com/vatesfr/xen-orchestra/pull/5952))
 - [VM/export] Ability to copy the export URL (PR [#5948](https://github.com/vatesfr/xen-orchestra/pull/5948))
+- [Servers] Ability to use an HTTP proxy between XO and a server
 
 ### Bug fixes
 
@@ -42,8 +43,10 @@
 
 - xo-server-netbox patch
 - vhd-lib minor
+- xen-api minor
 - @xen-orchestra/backup minor
 - @xen-orchestra/proxy minor
 - vhd-cli minor
+- xapi-explore-sr minor
 - xo-server patch
 - xo-web minor

packages/xapi-explore-sr/src/index.js

@@ -3,6 +3,7 @@
 import archy from 'archy'
 import chalk from 'chalk'
 import execPromise from 'exec-promise'
+import firstDefined from '@xen-orchestra/defined'
 import humanFormat from 'human-format'
 import pw from 'pw'
 import { createClient } from 'xen-api'
@@ -69,11 +70,13 @@ execPromise(async args => {
     url = required('Host URL'),
     user = required('Host user'),
     password = await askPassword('Host password'),
+    httpProxy = firstDefined(process.env.http_proxy, process.env.HTTP_PROXY),
   ] = args
 
   const xapi = createClient({
     allowUnauthorized: true,
     auth: { user, password },
+    httpProxy,
     readOnly: true,
     url,
     watchEvents: false,

packages/xen-api/README.md

@@ -52,6 +52,7 @@ Options:
 - `auth`: credentials used to sign in (can also be specified in the URL)
 - `readOnly = false`: if true, no methods with side-effects can be called
 - `callTimeout`: number of milliseconds after which a call is considered failed (can also be a map of timeouts by methods)
+- `httpProxy`: URL of the HTTP/HTTPS proxy used to reach the host, can include credentials
 
 ```js
 // Force connection.

packages/xen-api/src/index.js

@@ -115,6 +115,7 @@ export class Xapi extends EventEmitter {
     }
 
     this._allowUnauthorized = opts.allowUnauthorized
+    this._httpProxy = opts.httpProxy
     this._setUrl(url)
 
     this._connected = new Promise(resolve => {
@@ -851,6 +852,7 @@ export class Xapi extends EventEmitter {
         rejectUnauthorized: !this._allowUnauthorized,
       },
       url,
+      httpProxy: this._httpProxy,
     })
     this._url = url
   }

packages/xen-api/src/transports/json-rpc.js

@@ -1,4 +1,5 @@
 import httpRequestPlus from 'http-request-plus'
+import ProxyAgent from 'proxy-agent'
 import { format, parse } from 'json-rpc-protocol'
 
 import XapiError from '../_XapiError'
@@ -6,7 +7,11 @@ import XapiError from '../_XapiError'
 import UnsupportedTransport from './_UnsupportedTransport'
 
 // https://github.com/xenserver/xenadmin/blob/0df39a9d83cd82713f32d24704852a0fd57b8a64/XenModel/XenAPI/Session.cs#L403-L433
-export default ({ secureOptions, url }) => {
+export default ({ secureOptions, url, httpProxy }) => {
+  let agent
+  if (httpProxy !== undefined) {
+    agent = new ProxyAgent(httpProxy)
+  }
   return (method, args) =>
     httpRequestPlus
       .post(url, {
@@ -17,6 +22,7 @@ export default ({ secureOptions, url }) => {
           'Content-Type': 'application/json',
         },
         path: '/jsonrpc',
+        agent,
       })
       .readAll('utf8')
       .then(

packages/xen-api/src/transports/xml-rpc-json.js

@@ -1,5 +1,6 @@
 import { createClient, createSecureClient } from 'xmlrpc'
 import { promisify } from 'promise-toolbox'
+import ProxyAgent from 'proxy-agent'
 
 import XapiError from '../_XapiError'
 
@@ -70,10 +71,15 @@ const parseResult = result => {
   throw new UnsupportedTransport()
 }
 
-export default ({ secureOptions, url: { hostname, port, protocol } }) => {
+export default ({ secureOptions, url: { hostname, port, protocol }, httpProxy }) => {
   const secure = protocol === 'https:'
+  let agent
+  if (httpProxy !== undefined) {
+    agent = new ProxyAgent(httpProxy)
+  }
   const client = (secure ? createSecureClient : createClient)({
     ...(secure ? secureOptions : undefined),
+    agent,
     host: hostname,
     path: '/json',
     port,

packages/xen-api/src/transports/xml-rpc.js

@@ -1,5 +1,6 @@
 import { createClient, createSecureClient } from 'xmlrpc'
 import { promisify } from 'promise-toolbox'
+import ProxyAgent from 'proxy-agent'
 
 import XapiError from '../_XapiError'
 
@@ -30,10 +31,15 @@ const parseResult = result => {
   return result.Value
 }
 
-export default ({ secureOptions, url: { hostname, port, protocol } }) => {
+export default ({ secureOptions, url: { hostname, port, protocol, httpProxy } }) => {
   const secure = protocol === 'https:'
+  let agent
+  if (httpProxy !== undefined) {
+    agent = new ProxyAgent(httpProxy)
+  }
   const client = (secure ? createSecureClient : createClient)({
     ...(secure ? secureOptions : undefined),
+    agent,
     host: hostname,
     port,
   })

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

@@ -36,6 +36,10 @@ add.params = {
     optional: true,
     type: 'boolean',
   },
+  httpProxy: {
+    optional: true,
+    type: 'string',
+  },
 }
 
 // -------------------------------------------------------------------
@@ -104,6 +108,10 @@ set.params = {
     optional: true,
     type: 'boolean',
   },
+  httpProxy: {
+    optional: true,
+    type: ['string', 'null'],
+  },
 }
 
 // -------------------------------------------------------------------

packages/xo-server/src/xo-mixins/xen-servers.mjs

@@ -94,7 +94,7 @@ export default class {
     // TODO: disconnect servers on stop.
   }
 
-  async registerXenServer({ allowUnauthorized = false, host, label, password, readOnly = false, username }) {
+  async registerXenServer({ allowUnauthorized = false, host, label, password, readOnly = false, username, httpProxy }) {
     // FIXME: We are storing passwords which is bad!
     //        Could we use tokens instead?
     // TODO: use plain objects
@@ -102,6 +102,7 @@ export default class {
       allowUnauthorized,
       enabled: true,
       host,
+      httpProxy,
       label: label || undefined,
       password,
       readOnly,
@@ -119,11 +120,18 @@ export default class {
     }
   }
 
-  async updateXenServer(id, { allowUnauthorized, enabled, error, host, label, password, readOnly, username }) {
+  async updateXenServer(
+    id,
+    { allowUnauthorized, enabled, error, host, label, password, readOnly, username, httpProxy }
+  ) {
     const server = await this._getXenServer(id)
     const xapi = this._xapis[id]
     const requireDisconnected =
-      allowUnauthorized !== undefined || host !== undefined || password !== undefined || username !== undefined
+      allowUnauthorized !== undefined ||
+      host !== undefined ||
+      password !== undefined ||
+      username !== undefined ||
+      httpProxy !== undefined
 
     if (requireDisconnected && xapi !== undefined && xapi.status !== 'disconnected') {
       throw new Error('this entry require disconnecting the server to update it')
@@ -153,6 +161,10 @@ export default class {
       server.set('allowUnauthorized', allowUnauthorized)
     }
 
+    if (httpProxy !== undefined) {
+      // if value is null, pass undefined to the model , so it will delete this optionnal property from the Server object
+      server.set('httpProxy', httpProxy === null ? undefined : httpProxy)
+    }
     await this._servers.update(server)
   }
 
@@ -288,6 +300,7 @@ export default class {
       readOnly: server.readOnly,
 
       ...config.get('xapiOptions'),
+      httpProxy: server.httpProxy,
       guessVhdSizeOnImport: config.get('guessVhdSizeOnImport'),
 
       auth: {

packages/xo-web/src/common/intl/messages.js

@@ -1826,6 +1826,8 @@ const messages = {
   serverEnabled: 'Enabled',
   serverDisabled: 'Disabled',
   serverDisable: 'Disable server',
+  serverHttpProxy: ' HTTP proxy URL',
+  serverHttpProxyPlaceHolder: ' HTTP proxy URL',
 
   // ----- Copy VM -----
   copyVm: 'Copy VM',

packages/xo-web/src/common/xo/index.js

@@ -560,10 +560,11 @@ export const exportConfig = () =>
 
 // Server ------------------------------------------------------------
 
-export const addServer = (host, username, password, label, allowUnauthorized) =>
+export const addServer = (host, username, password, label, allowUnauthorized, httpProxy) =>
   _call('server.add', {
     allowUnauthorized,
     host,
+    httpProxy,
     label,
     password,
     username,

packages/xo-web/src/xo-app/settings/servers/index.js

@@ -132,6 +132,18 @@ const COLUMNS = [
     itemRenderer: ({ poolId }) => poolId !== undefined && <Pool id={poolId} link />,
     name: _('pool'),
   },
+  {
+    itemRenderer: (server, formatMessage) => (
+      <Text
+        value={server.httpProxy || ''}
+        // force a null value for falsish value to ensure the value is removed from object if set to ''
+        onChange={httpProxy => editServer(server, { httpProxy: httpProxy || null })}
+        placeholder={formatMessage(messages.serverHttpProxyPlaceHolder)}
+      />
+    ),
+    name: _('serverHttpProxy'),
+    sortCriteria: _ => _.httpProxy,
+  },
 ]
 const INDIVIDUAL_ACTIONS = [
   {
@@ -152,13 +164,13 @@ export default class Servers extends Component {
   }
 
   _addServer = async () => {
-    const { label, host, password, username, allowUnauthorized } = this.state
+    const { label, host, password, username, allowUnauthorized, httpProxy } = this.state
-
+    await addServer(host, username, password, label, allowUnauthorized, httpProxy)
-    await addServer(host, username, password, label, allowUnauthorized)
 
     this.setState({
       allowUnauthorized: false,
       host: '',
+      httpProxy: '',
       label: '',
       password: '',
       username: '',
@@ -227,6 +239,15 @@ export default class Servers extends Component {
               <Toggle onChange={this.linkState('allowUnauthorized')} value={state.allowUnauthorized} />
             </Tooltip>
           </div>{' '}
+          <div className='form-group'>
+            <input
+              className='form-control'
+              onChange={this.linkState('httpProxy')}
+              placeholder={formatMessage(messages.serverHttpProxy)}
+              type='text'
+              value={state.httpProxy || ''}
+            />
+          </div>{' '}
           <ActionButton btnStyle='primary' form='form-add-server' handler={this._addServer} icon='save'>
             {_('serverConnect')}
           </ActionButton>