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Share your terminal as a web application

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Top Related Projects

18,830

Share your terminal as a web application

8,272

Share your terminal over the web

17,914

The easiest, and most secure way to access and protect all of your infrastructure.

22,232

A terminal workspace with batteries included

5,703

Instant Terminal Sharing

Quick Overview

GoTTY is a simple command-line tool that turns your CLI tools into web applications. It allows you to share your terminal as a web application, making it accessible through a web browser. This can be useful for remote access, demonstrations, or collaborative work.

Pros

  • Easy to set up and use
  • Provides secure access to terminal applications via a web browser
  • Supports custom JavaScript and CSS for UI customization
  • Works with various terminal applications and shells

Cons

  • Limited built-in authentication options
  • May pose security risks if not properly configured
  • Performance can be affected by network latency
  • Not actively maintained (last commit was in 2021)

Getting Started

To get started with GoTTY, follow these steps:

  1. Install GoTTY:

    go install github.com/sorenisanerd/gotty@latest
    
  2. Run a simple command with GoTTY:

    gotty top
    
  3. Access the terminal in your web browser: Open http://localhost:8080 in your web browser to see the top command running.

  4. To customize the port and add basic authentication:

    gotty --port 8888 --credential user:pass bash
    

This will start a bash session on port 8888 with basic authentication enabled.

Competitor Comparisons

18,830

Share your terminal as a web application

Pros of GoTTY (yudai)

  • More established project with a longer history and larger community
  • Supports a wider range of terminal applications and shells
  • Offers more customization options for appearance and behavior

Cons of GoTTY (yudai)

  • Less actively maintained, with fewer recent updates
  • May have security vulnerabilities due to lack of recent patches
  • Limited support for modern web technologies and features

Code Comparison

GoTTY (yudai):

func (server *Server) handleWS(w http.ResponseWriter, r *http.Request) {
    conn, err := server.upgrader.Upgrade(w, r, nil)
    if err != nil {
        log.Print("Failed to upgrade connection: " + err.Error())
        return
    }
    defer conn.Close()
    // ... (additional code)
}

GoTTY (sorenisanerd):

func (h *Handler) handleWS(w http.ResponseWriter, r *http.Request) {
    conn, err := h.upgrader.Upgrade(w, r, nil)
    if err != nil {
        log.Printf("Failed to upgrade connection: %v", err)
        return
    }
    defer conn.Close()
    // ... (additional code)
}

The code structure is similar, but GoTTY (sorenisanerd) uses more modern Go practices, such as using %v for error formatting and a slightly different naming convention for the handler struct.

8,272

Share your terminal over the web

Pros of ttyd

  • Written in C, potentially offering better performance and lower resource usage
  • Supports more features like SSL/TLS, client authentication, and custom index.html
  • More actively maintained with frequent updates and contributions

Cons of ttyd

  • More complex setup and configuration compared to GoTTY's simplicity
  • Requires additional dependencies and libraries to be installed
  • May have a steeper learning curve for users new to terminal sharing tools

Code Comparison

GoTTY (Go):

func main() {
    factory := &factory.Factory{
        Command: flag.Arg(0),
        Args:    flag.Args()[1:],
    }
    server, err := server.New(factory, options)
    if err != nil {
        log.Fatal(err)
    }
    server.Run(context.Background())
}

ttyd (C):

int main(int argc, char **argv) {
    struct lws_context_creation_info info;
    memset(&info, 0, sizeof(info));
    info.port = 7681;
    info.iface = NULL;
    info.protocols = protocols;
    info.gid = -1;
    info.uid = -1;
    
    context = lws_create_context(&info);
    lws_service(context, 50);
}
17,914

The easiest, and most secure way to access and protect all of your infrastructure.

Pros of Teleport

  • More comprehensive security features, including SSO, RBAC, and audit logging
  • Supports multiple protocols (SSH, Kubernetes, databases) beyond just web terminal access
  • Designed for enterprise-scale deployments with clustering and high availability

Cons of Teleport

  • More complex setup and configuration compared to GoTTY's simplicity
  • Requires more resources to run due to its broader feature set
  • May be overkill for simple web terminal access needs

Code Comparison

GoTTY:

func main() {
    app := cli.NewApp()
    app.Name = "gotty"
    app.Version = Version
    app.Usage = "Share your terminal as a web application"
    // ...
}

Teleport:

func main() {
    app := utils.InitCLIParser("teleport", "Teleport Access Plane")
    app.Version = teleport.Version
    commands := []cli.Command{
        // ...
    }
    // ...
}

Both projects use CLI libraries for command-line parsing, but Teleport's structure reflects its more complex nature with multiple commands and subcommands.

22,232

A terminal workspace with batteries included

Pros of Zellij

  • Offers a more feature-rich terminal multiplexer experience with layouts, panes, and tabs
  • Written in Rust, providing better performance and memory safety
  • Includes a plugin system for extending functionality

Cons of Zellij

  • More complex to set up and use compared to GoTTY's simplicity
  • Primarily focused on local terminal multiplexing, not web-based sharing
  • Steeper learning curve for users unfamiliar with terminal multiplexers

Code Comparison

Zellij configuration (in YAML):

keybinds:
  - action: [SwitchToMode: Normal]
    key: [Ctrl: 'b']
  - action: [NewPane: ]
    key: [Alt: 'n']

GoTTY command-line usage:

gotty [options] <command> [<arguments...>]

While both projects relate to terminal experiences, they serve different purposes. Zellij is a feature-rich terminal multiplexer for local use, offering advanced layouts and plugins. GoTTY, on the other hand, focuses on sharing terminal sessions over the web with a simpler setup. Zellij is better suited for power users who want a customizable terminal environment, while GoTTY is ideal for quickly sharing terminal sessions with remote collaborators.

5,703

Instant Terminal Sharing

Pros of tmate

  • Secure terminal sharing with SSH encryption
  • Supports multiple concurrent users in a shared session
  • Works well in low-bandwidth environments

Cons of tmate

  • Requires a tmate server for relay (can be self-hosted)
  • Limited to terminal-based applications

Code Comparison

tmate configuration example:

set -g tmate-server-host "your-tmate-server.com"
set -g tmate-server-port 22
set -g tmate-server-rsa-fingerprint "your-rsa-fingerprint"

GoTTY usage example:

gotty -w bash

Key Differences

  • GoTTY provides a web-based terminal interface, while tmate uses SSH for sharing
  • tmate is focused on collaborative terminal sharing, while GoTTY is more suited for individual web-based terminal access
  • GoTTY can be easily integrated into web applications, whereas tmate is primarily a standalone tool

Use Cases

  • tmate: Collaborative debugging, pair programming, remote support
  • GoTTY: Web-based server management, integrating terminal access into web applications

Both tools have their strengths, and the choice between them depends on specific requirements such as security needs, collaboration features, and integration capabilities.

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README

GoTTY - Share your terminal as a web application

All Contributors

GitHub release MIT License Maintainer streaming

GoTTY is a simple command line tool that turns your CLI tools into web applications.

Original work by Iwasaki Yudai. There would be no GoTTY without him. ❤️

Screenshot

Installation

From release page

You can download the latest stable binary file from the Releases page. Note that the release marked Pre-release is built for testing purpose, which can include unstable or breaking changes. Download a release marked Latest release for a stable build.

(Files named with darwin_amd64 are for Mac OS X users)

Homebrew Installation

You can install GoTTY with Homebrew as well.

$ brew install sorenisanerd/gotty/gotty

go get Installation (Development)

If you have a Go language environment, you can install GoTTY with the go get command. However, this command builds a binary file from the latest master branch, which can include unstable or breaking changes. GoTTY requires go1.9 or later.

$ go get github.com/sorenisanerd/gotty

Usage

Usage: gotty [options] <command> [<arguments...>]

Run gotty with your preferred command as its arguments (e.g. gotty top).

By default, GoTTY starts a web server at port 8080. Open the URL on your web browser and you can see the running command as if it were running on your terminal.

Options

   --address value, -a value     IP address to listen (default: "0.0.0.0") [$GOTTY_ADDRESS]
   --port value, -p value        Port number to liten (default: "8080") [$GOTTY_PORT]
   --path value, -m value        Base path (default: "/") [$GOTTY_PATH]
   --permit-write, -w            Permit clients to write to the TTY (BE CAREFUL) (default: false) [$GOTTY_PERMIT_WRITE]
   --credential value, -c value  Credential for Basic Authentication (ex: user:pass, default disabled) [$GOTTY_CREDENTIAL]
   --random-url, -r              Add a random string to the URL (default: false) [$GOTTY_RANDOM_URL]
   --random-url-length value     Random URL length (default: 8) [$GOTTY_RANDOM_URL_LENGTH]
   --tls, -t                     Enable TLS/SSL (default: false) [$GOTTY_TLS]
   --tls-crt value               TLS/SSL certificate file path (default: "~/.gotty.crt") [$GOTTY_TLS_CRT]
   --tls-key value               TLS/SSL key file path (default: "~/.gotty.key") [$GOTTY_TLS_KEY]
   --tls-ca-crt value            TLS/SSL CA certificate file for client certifications (default: "~/.gotty.ca.crt") [$GOTTY_TLS_CA_CRT]
   --index value                 Custom index.html file [$GOTTY_INDEX]
   --title-format value          Title format of browser window (default: "{{ .command }}@{{ .hostname }}") [$GOTTY_TITLE_FORMAT]
   --reconnect                   Enable reconnection (default: false) [$GOTTY_RECONNECT]
   --reconnect-time value        Time to reconnect (default: 10) [$GOTTY_RECONNECT_TIME]
   --max-connection value        Maximum connection to gotty (default: 0) [$GOTTY_MAX_CONNECTION]
   --once                        Accept only one client and exit on disconnection (default: false) [$GOTTY_ONCE]
   --timeout value               Timeout seconds for waiting a client(0 to disable) (default: 0) [$GOTTY_TIMEOUT]
   --permit-arguments            Permit clients to send command line arguments in URL (e.g. http://example.com:8080/?arg=AAA&arg=BBB) (default: false) [$GOTTY_PERMIT_ARGUMENTS]
   --width value                 Static width of the screen, 0(default) means dynamically resize (default: 0) [$GOTTY_WIDTH]
   --height value                Static height of the screen, 0(default) means dynamically resize (default: 0) [$GOTTY_HEIGHT]
   --ws-origin value             A regular expression that matches origin URLs to be accepted by WebSocket. No cross origin requests are acceptable by default [$GOTTY_WS_ORIGIN]
   --ws-query-args value         Querystring arguments to append to the websocket instantiation [$GOTTY_WS_QUERY_ARGS]
   --enable-webgl                Enable WebGL renderer (default: true) [$GOTTY_ENABLE_WEBGL]
   --close-signal value          Signal sent to the command process when gotty close it (default: SIGHUP) (default: 1) [$GOTTY_CLOSE_SIGNAL]
   --close-timeout value         Time in seconds to force kill process after client is disconnected (default: -1) (default: -1) [$GOTTY_CLOSE_TIMEOUT]
   --config value                Config file path (default: "~/.gotty") [$GOTTY_CONFIG]
   --help, -h                    show help (default: false)
   --version, -v                 print the version (default: false)

Config File

You can customize default options and your terminal by providing a config file to the gotty command. GoTTY loads a profile file at ~/.gotty by default when it exists.

// Listen at port 9000 by default
port = "9000"

// Enable TSL/SSL by default
enable_tls = true

See the .gotty file in this repository for the list of configuration options.

Security Options

By default, GoTTY doesn't allow clients to send any keystrokes or commands except terminal window resizing. When you want to permit clients to write input to the TTY, add the -w option. However, accepting input from remote clients is dangerous for most commands. When you need interaction with the TTY for some reasons, consider starting GoTTY with tmux or GNU Screen and run your command on it (see "Sharing with Multiple Clients" section for detail).

To restrict client access, you can use the -c option to enable the basic authentication. With this option, clients need to input the specified username and password to connect to the GoTTY server. Note that the credentials will be transmitted between the server and clients in plain text. For more strict authentication, consider the SSL/TLS client certificate authentication described below.

The -r option is a little bit more casual way to restrict access. With this option, GoTTY generates a random URL so that only people who know the URL can get access to the server.

All traffic between the server and clients are NOT encrypted by default. When you send secret information through GoTTY, we strongly recommend you use the -t option which enables TLS/SSL on the session. By default, GoTTY loads the crt and key files placed at ~/.gotty.crt and ~/.gotty.key. You can overwrite these file paths with the --tls-crt and --tls-key options. When you need to generate a self-signed certification file, you can use the openssl command.

openssl req -x509 -nodes -days 9999 -newkey rsa:2048 -keyout ~/.gotty.key -out ~/.gotty.crt

(NOTE: For Safari uses, see how to enable self-signed certificates for WebSockets when use self-signed certificates)

For additional security, you can use the SSL/TLS client certificate authentication by providing a CA certificate file to the --tls-ca-crt option (this option requires the -t or --tls to be set). This option requires all clients to send valid client certificates that are signed by the specified certification authority.

Sharing with Multiple Clients

GoTTY starts a new process with the given command when a new client connects to the server. This means users cannot share a single terminal with others by default. However, you can use terminal multiplexers for sharing a single process with multiple clients.

Screen

After installing GNU screen, start a new session with screen -S name-for-session and connect to it with gotty in another terminal window/tab through screen -x name-for-session. All commands and activities being done in the first terminal tab/window will now be broadcasted by gotty.

Tmux

For example, you can start a new tmux session named gotty with top command by the command below.

$ gotty tmux new -A -s gotty top

This command doesn't allow clients to send keystrokes, however, you can attach the session from your local terminal and run operations like switching the mode of the top command. To connect to the tmux session from your terminal, you can use following command.

$ tmux new -A -s gotty

By using terminal multiplexers, you can have the control of your terminal and allow clients to just see your screen.

Quick Sharing on tmux

To share your current session with others by a shortcut key, you can add a line like below to your .tmux.conf.

# Start GoTTY in a new window with C-t
bind-key C-t new-window "gotty tmux attach -t `tmux display -p '#S'`"

Playing with Docker

When you want to create a jailed environment for each client, you can use Docker containers like following:

$ gotty -w docker run -it --rm busybox

Development

You can build a binary by simply running make. go1.16 is required.

To build the frontend part (JS files and other static files), you need npm.

Architecture

GoTTY uses xterm.js to run a JavaScript based terminal on web browsers. GoTTY itself provides a websocket server that simply relays output from the TTY to clients and receives input from clients and forwards it to the TTY. This xterm + websocket idea is inspired by Wetty.

Alternatives

Command line client

  • gotty-client: If you want to connect to GoTTY server from your terminal

Terminal/SSH on Web Browsers

  • Secure Shell (Chrome App): If you are a chrome user and need a "real" SSH client on your web browser, perhaps the Secure Shell app is what you want
  • Wetty: Node based web terminal (SSH/login)
  • ttyd: C port of GoTTY with CJK and IME support

Terminal Sharing

  • tmate: Forked-Tmux based Terminal-Terminal sharing
  • termshare: Terminal-Terminal sharing through a HTTP server
  • tmux: Tmux itself also supports TTY sharing through SSH)

License

The MIT License

Contributors

Thanks goes to these wonderful people (emoji key):


Iwasaki Yudai

💻

Soren L. Hansen

🐛

Andrea Lusuardi

💻

Manfred Touron

💻

Stephan

💻

Quentin Perez

💻

jzl

💻

Fazal Majid

💻

Immortalin

💻

freakhill

💻

0xflotus

💻

Andy Skelton

💻

Artem Medvedev

💻

Blake Jennings

💻

Christian Jensen

💻

Christopher Wilkinson

💻

Cyrus

💻

David Horsley

💻

Jason Cooke

💻

Denis Korenevskiy

💻

Massimiliano Stucchi

💻

Mikhail f. Shiryaev

💻

Robert Bittle

💻

sebastian haas

💻

shoji

💻

Shuanglei Tao

💻

The Gitter Badger

💻

Jacob Zhou

💻

zyfdegh

💻

fredster33

💻

mattn

💻

Shinichi Goto

💻

ygit

💻

Stéphane

🐛

Pavol Rusnak

🐛

Devan Lai

💻

Jeeva Kandasamy

💻

Steve Biedermann

💻

xgdgsc

🐛

flechaig

🐛

Fan-SJ

🐛

Dustin Martin

🐛

Ahmet Alp Balkan

🐛

CoconutMacaroon

🐛

Danny Ben Shitrit

🐛

George-NG

🐛

Will Owens

🐛

Jaime Pillora

🐛

kaisawind

🐛

linyinli

🐛

LucaMarconato

🐛

Kain

🐛

Andi Andreas

🐛

qigj

🐛

shuaiyy

🐛

v20z

🐛

Yanfeng Qiu

🐛

This project follows the all-contributors specification. Contributions of any kind welcome!