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Merge pull request #144 from urbit/allow-terminal-access
Allow terminal access
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,152 @@ | ||
| import os from "os" | ||
| import { IPty, spawn } from "node-pty"; | ||
| import { BrowserWindow, ipcMain } from "electron"; | ||
| import isDev from 'electron-is-dev'; | ||
| declare const TERMINAL_WEBPACK_ENTRY: string; | ||
|
|
||
| const shell = os.platform() === "win32" ? "powershell.exe" : "bash"; | ||
|
|
||
| export interface Payload { | ||
| ship: string; | ||
| data: string; | ||
| } | ||
|
|
||
| interface TerminalProcessParams { | ||
| ship: string; | ||
| initialCommand?: string; | ||
| exitCommand?: string; | ||
| } | ||
|
|
||
| class TerminalProcess { | ||
| ship: string; | ||
| initialCommand?: string; | ||
| exitCommand?: string; | ||
| pty: IPty; | ||
| initialized: boolean; | ||
| msgCount: number; | ||
| window: BrowserWindow; | ||
|
|
||
| constructor({ ship, initialCommand, exitCommand }: TerminalProcessParams) { | ||
| this.ship = ship; | ||
| this.initialCommand = initialCommand; | ||
| this.exitCommand = exitCommand; | ||
| this.initialized = false; | ||
| this.msgCount = 0; | ||
| this.window = new BrowserWindow({ | ||
| title: `${ship} | Terminal`, | ||
| height: 450, | ||
| width: 800, | ||
| backgroundColor: "#000000", | ||
| webPreferences: { | ||
| nodeIntegration: true | ||
| } | ||
| }); | ||
| this.window.on('close', (event) => { | ||
| event.preventDefault(); | ||
| this.destroy(); | ||
| }); | ||
| this.window.webContents.on('did-finish-load', () => { | ||
| isDev && console.log('loaded, sending ship') | ||
| this.window.webContents.send('ship', ship) | ||
| }) | ||
| this.window.loadURL(TERMINAL_WEBPACK_ENTRY); | ||
| } | ||
|
|
||
| init(): void { | ||
| if (this.initialized) { | ||
| return; | ||
| } | ||
|
|
||
| this.initialized = true; | ||
| isDev && console.log('initializing pty') | ||
| this.pty = spawn(shell, [], { | ||
| name: "xterm-color", | ||
| cols: 80, | ||
| rows: 30, | ||
| cwd: process.env.HOME, | ||
| env: process.env | ||
| }); | ||
|
|
||
| this.pty.onData(data => { | ||
| //console.log('sending terminal data', data) | ||
| try { | ||
| this.window.webContents.send('terminal-incoming', { ship: this.ship, data }); | ||
| } catch(err) { | ||
| console.log(err) | ||
| } | ||
|
|
||
| this.msgCount++; | ||
| }); | ||
|
|
||
| this.pty.onExit(({ exitCode, signal}) => { | ||
| this.destroy(); | ||
| console.log('exiting with', exitCode, signal); | ||
| }) | ||
|
|
||
| this.runInitCommand(); | ||
| } | ||
|
|
||
| runInitCommand() { | ||
| setTimeout(() => { | ||
| if (this.initialCommand && this.msgCount >= 1) { | ||
| this.pty.write(this.initialCommand + '\r'); | ||
| } else { | ||
| this.runInitCommand(); | ||
| } | ||
| }, 500); | ||
| } | ||
|
|
||
| write(key: string): void { | ||
| this.pty.write(key); | ||
| } | ||
|
|
||
| destroy(): void { | ||
| if (this.exitCommand) { | ||
| this.pty.write(this.exitCommand) | ||
| } | ||
|
|
||
| try { | ||
| this.pty.kill(); | ||
|
|
||
| setTimeout(() => { | ||
| this.window.destroy(); | ||
| }, 100); | ||
| } catch (err) { | ||
| console.log('errored on destroy', err) | ||
| } | ||
| } | ||
| } | ||
|
|
||
| const procs = new Map<string, TerminalProcess>(); | ||
|
|
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| function withTerm(ship: string, cb: (term: TerminalProcess) => void) { | ||
| const term = procs.get(ship); | ||
|
|
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| if (term) { | ||
| cb(term); | ||
| } | ||
| } | ||
|
|
||
| export function start(): void { | ||
| ipcMain.on('terminal-create', (event, params: TerminalProcessParams) => { | ||
| const term = new TerminalProcess(params); | ||
| isDev && console.log('creating terminal') | ||
| procs.set(params.ship, term); | ||
| }) | ||
|
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||
| ipcMain.on('terminal-loaded', (event, ship) => { | ||
| isDev && console.log('terminal loaded') | ||
| withTerm(ship, term => term.init()); | ||
| }) | ||
|
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||
| ipcMain.on('terminal-keystroke', (event, { ship, data }: Payload) => { | ||
| withTerm(ship, term => term.write(data)) | ||
| }) | ||
|
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||
| ipcMain.on('terminal-kill', (event, ship) => { | ||
| withTerm(ship, term => { | ||
| term.destroy(); | ||
| procs.delete(ship); | ||
| }); | ||
| }) | ||
| } |
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