Node pty

Node pty DEFAULT

How to combine node-pty and xterm

  1. What tasks do I need to implement in the xterm and what should I expect node-pty to handle.

xterm.js:

  • That's where the incoming data from the PTY should be written to.
  • Event containing data from the user (keyboard input on the terminal). Should be written to the PTY.

These are the minimum requirements to get a working PTY connection. There are more goodies like addons to get a more full featured experience. Also see the demo project in the repo.

PTY:
A PTY on master side has mainly 2 interesting interface parts - the IO byte stream (can be assumed to be UTF8 these days) and a way to get/set the terminal size.

  • create a history buffer to handle up/down arrows.
  • create the terminal prompt
  • hand left and right arrow

For a terminal driven behind the TTY interface (PTY is a special case of that) these things are handled by the application currently running in the foreground (like the shell itself). The foreground application is in control of a history buffer, prompt printing, what to do with arrow keys and so on. As a cmdline app developer you may care for those things (slave side of PTY), but not as a terminal integrator (master side of PTY).

  1. When listinging to the data event in node-pty I get both the echoed command,the response, and the new terminal line. What is the the best way to filter out any data event that is not the respose to an issued command? Sometimes the echoed command is

xterm.js is a dumb terminal, thus has no means to directly output data from user input, instead relies on proper echoing. The echoing itself is a feature by the TTY kernel interface and should not be filtered, unless you want silent input (yet that is not the way to do it).

  1. How do I choose a value for the node-pty column count? Do the number of pty columns need to match up with the number of columns in the xterm? If the command the user types in the xterm is long then the echoed command in jumbled in the pty echo of the issued command.

Yes, the size in should always be the same on xterm.js and the PTY, or weird output bugs will happen.

Sours: https://stackoverflow.com/questions/66058499/how-to-combine-node-pty-and-xterm

Best JavaScript code snippets using node-pty.spawn(Showing top 2 results out of 315)

const { path } = querystring.parse(request.url.split("?")[1]); let cwd = relative(path); let term = pty.spawn(exec, args, { name: "xterm-256color", cols: 80,

Most used node-pty functions

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Sours: https://www.tabnine.com/code/javascript/functions/node-pty/spawn
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Best JavaScript code snippets using node-pty(Showing top 10 results out of 315)

this.tty.onExit((code, signal) => { this._closed = true; this.onclosed(code, signal); });
this.wss.on("connection", ws => { this.onopened(this.tty._pid); ws.on("close", (code, reason) => { this.ondisconnected(code, reason); }); ws.on("message", msg => { this.tty.write(msg); }); this.tty.onData(data => { this._nextTickUpdateTtyCWD = true; this._nextTickUpdateProcess = true; try { ws.send(data); } catch (e) { } }); });
this.Ipc.on("terminal_channel-"+this.port, (e, ...args) => { switch(args[0]) { case"Renderer startup": this.renderer = e.sender; if (!this._disableCWDtracking && this.tty._cwd) { this.renderer.send("terminal_channel-"+this.port, "New cwd", this.tty._cwd); } if (this._disableCWDtracking) { this.renderer.send("terminal_channel-"+this.port, "Fallback cwd", opts.cwd || process.env.PWD); } break; case"Resize": let cols = args[1]; let rows = args[2]; this.tty.resize(Number(cols), Number(rows)); this.onresized(cols, rows); break; default: return; } });
this._nextTickUpdateTtyCWD = false; this._getTtyCWD(this.tty).then(cwd => { if (this.tty._cwd === cwd) return; this.tty._cwd = cwd; if (this.renderer) { this._nextTickUpdateProcess = false; this._getTtyProcess(this.tty).then(process => { if (this.tty._process === process) return; this.tty._process = process; if (this.renderer) {
const { path } = querystring.parse(request.url.split("?")[1]); let cwd = relative(path); let term = pty.spawn(exec, args, { name: "xterm-256color", cols: 80, cwd: cwd, }); console.log("pid " + term.pid + " shell " + process.env.SHELL + " started in " + cwd); term.on("data", (data) => { socket.send(data, { binary: true }); }); term.on("exit", (code) => { console.log("pid " + term.pid + " ended") socket.close(); }); switch (data.readUInt16BE(0)) { case0: term.resize(data.readUInt16BE(1), data.readUInt16BE(2)); return; term.write(data); }); socket.on("close", () => { term.end(); }); });
pty: Pty.spawn(spawnCmd, spawnArgs, { name: "xterm-color", cols: _.min(this._sessions.map(s => s.terminalCols)) || 80,
this.tty.onExit((code, signal) => { this._closed = true; this.onclosed(code, signal); });
this.wss.on("connection", ws => { this.onopened(this.tty._pid); ws.on("close", (code, reason) => { this.ondisconnected(code, reason); }); ws.on("message", msg => { this.tty.write(msg); }); this.tty.onData(data => { this._nextTickUpdateTtyCWD = true; this._nextTickUpdateProcess = true; try { ws.send(data); } catch (e) { } }); });
this.Ipc.on("terminal_channel-"+this.port, (e, ...args) => { switch(args[0]) { case"Renderer startup": this.renderer = e.sender; if (!this._disableCWDtracking && this.tty._cwd) { this.renderer.send("terminal_channel-"+this.port, "New cwd", this.tty._cwd); } if (this._disableCWDtracking) { this.renderer.send("terminal_channel-"+this.port, "Fallback cwd", opts.cwd || process.env.PWD); } break; case"Resize": let cols = args[1]; let rows = args[2]; this.tty.resize(Number(cols), Number(rows)); this.onresized(cols, rows); break; default: return; } });
this._nextTickUpdateTtyCWD = false; this._getTtyCWD(this.tty).then(cwd => { if (this.tty._cwd === cwd) return; this.tty._cwd = cwd; if (this.renderer) { this._nextTickUpdateProcess = false; this._getTtyProcess(this.tty).then(process => { if (this.tty._process === process) return; this.tty._process = process; if (this.renderer) {
Sours: https://www.tabnine.com/code/javascript/modules/node-pty

node-pty

Build status

bindings for node.js. This allows you to fork processes with pseudoterminal file descriptors. It returns a terminal object which allows reads and writes.

This is useful for:

  • Writing a terminal emulator (eg. via xterm.js).
  • Getting certain programs to think you're a terminal, such as when you need a program to send you control sequences.

supports Linux, macOS and Windows. Windows support is possible by utilizing the winpty library.

Real-world Uses

powers many different terminal emulators, including:

Do you use node-pty in your application as well? Please open a Pull Request to include it here. We would love to have it in our list.

Example Usage

Building

Dependencies on Windows

requires some tools to be present in the system like Python and C++ compiler. Windows users can easily install them by running the following command in PowerShell as administrator. For more information see https://github.com/felixrieseberg/windows-build-tools:

Debugging

On Windows, you can show the winpty agent console window by adding the environment variable to the pty's environment. See https://github.com/rprichard/winpty#debugging-winpty for more information.

Troubleshooting

Powershell gives error 8009001d

Internal Windows PowerShell error. Loading managed Windows PowerShell failed with error 8009001d.

This happens when PowerShell is launched with no environment variable present.

pty.js

This project is forked from chjj/pty.js with the primary goals being to provide better support for later Node.JS versions and Windows.

License

Copyright (c) 2012-2015, Christopher Jeffrey (MIT License). Copyright (c) 2016, Daniel Imms (MIT License).

Sours: https://npm.io/package/node-pty

Pty node

npm

Build Status

bindings for node.js. This allows you to fork processes with pseudoterminal file descriptors. It returns a terminal object which allows reads and writes.

This is useful for:

  • Writing a terminal emulator (eg. via xterm.js).
  • Getting certain programs to think you're a terminal, such as when you need a program to send you control sequences.

supports Linux, macOS and Windows. Windows support is possible by utilizing the Windows conpty API on Windows 1809+ and the winpty library in older version.

API

The full API for node-pty is contained within the TypeScript declaration file, use the branch/tag picker in GitHub () to navigate to the correct version of the API.

Example Usage

varos=require('os');varpty=require('node-pty');varshell=os.platform()==='win32' ? 'powershell.exe' : 'bash';varptyProcess=pty.spawn(shell,[],{name: 'xterm-color',cols: 80,rows: 30,cwd: process.env.HOME,env: process.env});ptyProcess.on('data',function(data){process.stdout.write(data);});ptyProcess.write('ls\r');ptyProcess.resize(100,40);ptyProcess.write('ls\r');

Real-world Uses

powers many different terminal emulators, including:

  • Microsoft Visual Studio Code
  • Hyper
  • Upterm
  • Script Runner for Atom.
  • Theia
  • FreeMAN file manager
  • terminus - An Atom plugin for providing terminals inside your Atom workspace.
  • x-terminal - Also an Atom plugin that provides terminals inside your Atom workspace.
  • Termination - Also an Atom plugin that provides terminals inside your Atom workspace.
  • atom-xterm - Also an Atom plugin that provides terminals inside your Atom workspace.
  • electerm Terminal/SSH/SFTP client(Linux, macOS, Windows).
  • Extraterm
  • Wetty Browser based Terminal over HTTP and HTTPS
  • nomad
  • DockerStacks Local LAMP/LEMP stack using Docker
  • TeleType: cli tool that allows you to share your terminal online conveniently. Show off mad cli-fu, help a colleague, teach, or troubleshoot.
  • mesos-term: A web terminal for Apache Mesos. It allows to execute commands within containers.
  • Commas: A hackable terminal and command runner.
  • ENiGMA½ BBS Software: A modern BBS software with a nostalgic flair!

Do you use node-pty in your application as well? Please open a Pull Request to include it here. We would love to have it in our list.

Building

# Install dependencies and build C++ npm install # Compile TypeScript -> JavaScript npm run build

Dependencies

Linux/Ubuntu

The following are also needed:

macOS

Xcode is needed to compile the sources, this can be installed from the App Store.

Windows

requires some tools to be present in the system like Python and C++ compiler. Windows users can easily install them by running the following command in PowerShell as administrator. For more information see https://github.com/felixrieseberg/windows-build-tools:

npm install --global --production windows-build-tools

The following are also needed:

  • Windows SDK - only the "Desktop C++ Apps" components are needed to be installed
  • Node.JS 10+

Debugging

The wiki contains instructions for debugging node-pty.

Security

All processes launched from node-pty will launch at the same permission level of the parent process. Take care particularly when using node-pty inside a server that's accessible on the internet. We recommend launching the pty inside a container to protect your host machine.

Thread Safety

Note that node-pty is not thread safe so running it across multiple worker threads in node.js could cause issues.

Flow Control

Automatic flow control can be enabled by either providing in the constructor options or setting it later on:

constPAUSE='\x13';// XOFFconstRESUME='\x11';// XONconstptyProcess=pty.spawn(shell,[],{handleFlowControl: true});// flow control in actionptyProcess.write(PAUSE);// pty will block and pause the child program ... ptyProcess.write(RESUME);// pty will enter flow mode and resume the child program// temporarily disable/re-enable flow controlptyProcess.handleFlowControl=false; ... ptyProcess.handleFlowControl=true;

By default and are XON/XOFF control codes (as shown above). To avoid conflicts in environments that use these control codes for different purposes the messages can be customized as and in the constructor options. and are not passed to the underlying pseudoterminal if flow control is enabled.

Troubleshooting

Powershell gives error 8009001d

Internal Windows PowerShell error. Loading managed Windows PowerShell failed with error 8009001d.

This happens when PowerShell is launched with no environment variable present.

ConnectNamedPipe failed: Windows error 232

This error can occur due to anti-virus software intercepting winpty from creating a pty. To workaround this you can exclude this file from your anti-virus scanning

pty.js

This project is forked from chjj/pty.js with the primary goals being to provide better support for later Node.JS versions and Windows.

License

Copyright (c) 2012-2015, Christopher Jeffrey (MIT License).
Copyright (c) 2016, Daniel Imms (MIT License).
Copyright (c) 2018, Microsoft Corporation (MIT License).

Sours: https://www.npmjs.com/package/node-pty
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node-pty

Build Status

bindings for node.js. This allows you to fork processes with pseudoterminal file descriptors. It returns a terminal object which allows reads and writes.

This is useful for:

  • Writing a terminal emulator (eg. via xterm.js).
  • Getting certain programs to think you're a terminal, such as when you need a program to send you control sequences.

supports Linux, macOS and Windows. Windows support is possible by utilizing the Windows conpty API on Windows 1809+ and the winpty library in older version.

API

The full API for node-pty is contained within the TypeScript declaration file, use the branch/tag picker in GitHub () to navigate to the correct version of the API.

Example Usage

varos=require('os');varpty=require('node-pty');varshell=os.platform()==='win32' ? 'powershell.exe' : 'bash';varptyProcess=pty.spawn(shell,[],{name: 'xterm-color',cols: 80,rows: 30,cwd: process.env.HOME,env: process.env});ptyProcess.on('data',function(data){process.stdout.write(data);});ptyProcess.write('ls\r');ptyProcess.resize(100,40);ptyProcess.write('ls\r');

Real-world Uses

powers many different terminal emulators, including:

  • Microsoft Visual Studio Code
  • Hyper
  • Upterm
  • Script Runner for Atom.
  • Theia
  • FreeMAN file manager
  • terminus - An Atom plugin for providing terminals inside your Atom workspace.
  • x-terminal - Also an Atom plugin that provides terminals inside your Atom workspace.
  • Termination - Also an Atom plugin that provides terminals inside your Atom workspace.
  • atom-xterm - Also an Atom plugin that provides terminals inside your Atom workspace.
  • electerm Terminal/SSH/SFTP client(Linux, macOS, Windows).
  • Extraterm
  • Wetty Browser based Terminal over HTTP and HTTPS
  • nomad
  • DockerStacks Local LAMP/LEMP stack using Docker
  • TeleType: cli tool that allows you to share your terminal online conveniently. Show off mad cli-fu, help a colleague, teach, or troubleshoot.
  • mesos-term: A web terminal for Apache Mesos. It allows to execute commands within containers.
  • Commas: A hackable terminal and command runner.
  • ENiGMA½ BBS Software: A modern BBS software with a nostalgic flair!
  • Tinkerun: A new way of running Tinker.
  • Tess: Hackable, simple and rapid terminal for the new era of technology
  • NxShell: An easy to use new terminal for Windows/Linux/MacOS platform.

Do you use node-pty in your application as well? Please open a Pull Request to include it here. We would love to have it in our list.

Building

# Install dependencies and build C++ npm install # Compile TypeScript -> JavaScript npm run build

Dependencies

Node.JS 12+ or Electron 8+ is required to use .

Linux (apt)

sudo apt install -y make python build-essential

macOS

Xcode is needed to compile the sources, this can be installed from the App Store.

Windows

requires some tools to be present in the system like Python and C++ compiler. Windows users can easily install them by running the following command in PowerShell as administrator. For more information see https://github.com/felixrieseberg/windows-build-tools:

npm install --global --production windows-build-tools

The following are also needed:

  • Windows SDK - only the "Desktop C++ Apps" components are needed to be installed

Debugging

The wiki contains instructions for debugging node-pty.

Security

All processes launched from node-pty will launch at the same permission level of the parent process. Take care particularly when using node-pty inside a server that's accessible on the internet. We recommend launching the pty inside a container to protect your host machine.

Thread Safety

Note that node-pty is not thread safe so running it across multiple worker threads in node.js could cause issues.

Flow Control

Automatic flow control can be enabled by either providing in the constructor options or setting it later on:

constPAUSE='\x13';// XOFFconstRESUME='\x11';// XONconstptyProcess=pty.spawn(shell,[],{handleFlowControl: true});// flow control in actionptyProcess.write(PAUSE);// pty will block and pause the child program ... ptyProcess.write(RESUME);// pty will enter flow mode and resume the child program// temporarily disable/re-enable flow controlptyProcess.handleFlowControl=false; ... ptyProcess.handleFlowControl=true;

By default and are XON/XOFF control codes (as shown above). To avoid conflicts in environments that use these control codes for different purposes the messages can be customized as and in the constructor options. and are not passed to the underlying pseudoterminal if flow control is enabled.

Troubleshooting

Powershell gives error 8009001d

Internal Windows PowerShell error. Loading managed Windows PowerShell failed with error 8009001d.

This happens when PowerShell is launched with no environment variable present.

ConnectNamedPipe failed: Windows error 232

This error can occur due to anti-virus software intercepting winpty from creating a pty. To workaround this you can exclude this file from your anti-virus scanning

pty.js

This project is forked from chjj/pty.js with the primary goals being to provide better support for later Node.JS versions and Windows.

License

Copyright (c) 2012-2015, Christopher Jeffrey (MIT License).
Copyright (c) 2016, Daniel Imms (MIT License).
Copyright (c) 2018, Microsoft Corporation (MIT License).

Sours: https://github.com/microsoft/node-pty

Similar news:

node-pty-prebuilt-multiarch

Prebuild Binaries

This project is a parallel fork of providing prebuilt packages for certain Node.js and Electron versions.

Inspired by daviwil/node-pty-prebuilt.

Usage

Thanks to the excellent and modules, using this module is extremely easy. You merely have to change your dependency to and then change any statements in your code from to .

NOTE: We started shipping prebuilds as of node-pty version 0.8.1, no prior versions are provided! If you were using an earlier version of you will need to update your code to account for any API changes that may have occurred.

How It Works

We maintain a parallel fork of the codebase that will be updated as new releases are shipped. When we merge new updates to the code into the branch, new prebuilt packages for our supported Node.js and Electron versions are updated to the corresponding GitHub release.

When is installed as a package dependency, the install script checks to see if there's a prebuilt package on this repo for the OS, ABI version, and architecture of the current process and then downloads it, extracting it into the module path. If a corresponding prebuilt package is not found, is invoked to build the package for the current platform.

Prebuilt Versions

OSArchitectures
macOSx64, arm64
Linux (glibc)ia32, x64, armv6, aarch64
Linux (musl)x64, armv6, aarch64
Windowsia32, x64

*We only provide prebuilt binaries for Node.js 10 and Electron 5.0.0 or higher.

License

  • Copyright (c) 2012-2015, Christopher Jeffrey (MIT License).
  • Copyright (c) 2016, Daniel Imms (MIT License).
  • Copyright (c) 2018, Microsoft Corporation (MIT License).
  • Copyright (c) 2018, David Wilson (MIT License).
  • Copyright (c) 2018, oznu (MIT License).
Sours: /advisor/


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