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added x11 forwarding (fixes #630)

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This commit is contained in:
Eugene Pankov 2019-12-08 13:40:15 +01:00
parent 9fe82f2c0a
commit 62c1f6463b
1 changed files with 32 additions and 2 deletions
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34
terminus-ssh/src/api.ts
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@ -1,5 +1,5 @@
import { BaseSession } from 'terminus-terminal'
import { Server, Socket, createServer } from 'net'
import { Server, Socket, createServer, createConnection } from 'net'
import { Client, ClientChannel } from 'ssh2'
import { Logger } from 'terminus-core'
import { Subject, Observable } from 'rxjs'
@ -88,7 +88,7 @@ export class SSHSession extends BaseSession {
this.open = true
this.shell = await new Promise<ClientChannel>((resolve, reject) => {
this.ssh.shell({ term: 'xterm-256color' }, (err, shell) => {
this.ssh.shell({ term: 'xterm-256color' }, { x11: true }, (err, shell) => {
if (err) {
this.emitServiceMessage(`Remote rejected opening a shell channel: ${err}`)
reject(err)
@ -185,6 +185,36 @@ export class SSHSession extends BaseSession {
})
})
this.ssh.on('x11', (details, accept, reject) => {
this.logger.info(`Incoming X11 connection from ${details.srcIP}:${details.srcPort}`)
let displaySpec = process.env.DISPLAY || ':0'
this.logger.debug(`Trying display ${displaySpec}`)
let xHost = displaySpec.split(':')[0]
let xDisplay = parseInt(displaySpec.split(':')[1].split('.')[0] || '0')
let xPort = xDisplay < 100 ? xDisplay + 6000 : xDisplay
const socket = displaySpec.startsWith('/') ? createConnection(displaySpec) : new Socket()
if (!displaySpec.startsWith('/')) {
socket.connect(xPort, xHost)
}
socket.on('error', e => {
this.emitServiceMessage(`Could not connect to the X server ${xHost}:${xPort}: ${e}`)
reject()
})
socket.on('connect', () => {
this.logger.info('Connection forwarded')
const stream = accept()
stream.pipe(socket)
socket.pipe(stream)
stream.on('close', () => {
socket.destroy()
})
socket.on('close', () => {
stream.close()
})
})
})
this.executeUnconditionalScripts()
}