diff --git a/.dockerignore b/.dockerignore deleted file mode 100644 index 206568c..0000000 --- a/.dockerignore +++ /dev/null @@ -1,8 +0,0 @@ -node_modules/ -certs/ -.git/ -.DS_Store -.gitignore -README.md -nodemon.json -*.service diff --git a/.gitignore b/.gitignore index 3efccf1..332bbc0 100644 --- a/.gitignore +++ b/.gitignore @@ -1,5 +1,3 @@ **/.DS_Store node_modules/ certs/ -docker-compose*.yml -!docker-compose-example.yml diff --git a/Dockerfile b/Dockerfile deleted file mode 100644 index e3b1c45..0000000 --- a/Dockerfile +++ /dev/null @@ -1,15 +0,0 @@ -FROM --platform=linux/amd64 node:20-alpine3.18 - -# set working directory -WORKDIR /srv/openterminal - -# install dependencies -COPY package*.json ./ -RUN npm ci --omit=dev - -COPY . . - -EXPOSE 8080 - -CMD [ "node", "./server/main.js" ] - diff --git a/LICENSE.txt b/LICENSE.txt deleted file mode 100644 index f288702..0000000 --- a/LICENSE.txt +++ /dev/null @@ -1,674 +0,0 @@ - GNU GENERAL PUBLIC LICENSE - Version 3, 29 June 2007 - - Copyright (C) 2007 Free Software Foundation, Inc. - Everyone is permitted to copy and distribute verbatim copies - of this license document, but changing it is not allowed. - - Preamble - - The GNU General Public License is a free, copyleft license for -software and other kinds of works. - - The licenses for most software and other practical works are designed -to take away your freedom to share and change the works. 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If not, see . - -Also add information on how to contact you by electronic and paper mail. - - If the program does terminal interaction, make it output a short -notice like this when it starts in an interactive mode: - - Copyright (C) - This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. - This is free software, and you are welcome to redistribute it - under certain conditions; type `show c' for details. - -The hypothetical commands `show w' and `show c' should show the appropriate -parts of the General Public License. Of course, your program's commands -might be different; for a GUI interface, you would use an "about box". - - You should also get your employer (if you work as a programmer) or school, -if any, to sign a "copyright disclaimer" for the program, if necessary. -For more information on this, and how to apply and follow the GNU GPL, see -. - - The GNU General Public License does not permit incorporating your program -into proprietary programs. If your program is a subroutine library, you -may consider it more useful to permit linking proprietary applications with -the library. If this is what you want to do, use the GNU Lesser General -Public License instead of this License. But first, please read -. diff --git a/OpenTerminal.service b/OpenTerminal.service new file mode 100644 index 0000000..be99b8c --- /dev/null +++ b/OpenTerminal.service @@ -0,0 +1,15 @@ +[Unit] +Description=OpenTerminal Server +After=network.target + +[Service] +Environment="PORT=443" +Environment="SSL_CERT=/certs/arimelody.me/arimelody.me.crt" +Environment="SSL_KEY=/certs/arimelody.me/arimelody.me.key" +Type=simple +ExecStart=/usr/bin/node /srv/openterminal/server/main.js +WorkingDirectory=/srv/openterminal +Restart=on-failure + +[Install] +WantedBy=multi-user.target diff --git a/README.md b/README.md index 63fe834..f2280d0 100644 --- a/README.md +++ b/README.md @@ -1,5 +1,4 @@ # OpenTerminal - An online terminal and communal text buffer ![openterminal thumbnail image](public/img/thumbnail.png) @@ -16,25 +15,14 @@ jokes aside- while i do absolutely see how an open, self-moderated text buffer i ...or maybe it'll just become a garbage-posting haven. regardless, it's a fun little idea, so i made it anyway. -## hosting - -- `git clone` this repo and `cd` into it -- `npm ci` to install dependencies -- `npm run start`, and you should be good to do! - -alternatively, you can `git clone` this repo and `docker build` a container if you like. we do not yet have official openterminal images on a public repo, sorry! - -OpenTerminal also makes use of environment variables for server hosts who want a bit more control of their setup: - -- `OPENTERM_HOST` - the address to bind OpenTerminal's http and websocket server. (default 0.0.0.0) -- `OPENTERM_POST` - the port to bind OpenTerminal's http and websocket server. (default 8080) -- `OPENTERM_TRUSTED_PROXIES` - a comma-separated list of addresses to check for `X-Forwarded-For` headers from. handy if you run OpenTerminal behind a reverse proxy! (default none, example `"127.0.0.1,192.168.0.100"`) - ## roadmap - rewrite backend in go/rust (me no like javascript raaaahhh) -- master server (anyone can host a channel and post to the MS) +- colour palette switcher in the UI (rather than in console) +- multiple "channels" (at least if one gets flooded, there's somewhere else you can go) ### "maybe" roadmap +- master server (anyone can host a channel and post to the MS) - channel logs (for recovery in the event of a crash, as an optional feature) + diff --git a/docker-compose-example.yml b/docker-compose-example.yml deleted file mode 100644 index 6eff74c..0000000 --- a/docker-compose-example.yml +++ /dev/null @@ -1,13 +0,0 @@ -version: "3.9" -services: - web: - build: . - image: openterminal - container_name: openterminal - ports: - - 8080:8080 - environment: - OPENTERM_HOST: 0.0.0.0 - OPENTERM_PORT: 8080 - # OPENTERM_TRUSTED_PROXIES: 127.0.0.1,192.168.0.100 - restart: unless-stopped diff --git a/public/index.html b/public/index.html index cf4ecaf..1dd6909 100644 --- a/public/index.html +++ b/public/index.html @@ -49,26 +49,8 @@ -
-
- -

Enter the address of the server you would like to connect to:

- - -
-
- -

- WARNING: The server you're about to connect to is insecure. - Your activity here may be available to anyone monitoring your network traffic! - Are you sure you want to continue? -

- - -
diff --git a/public/scripts/main.js b/public/scripts/main.js index 703a14d..8f38d14 100644 --- a/public/scripts/main.js +++ b/public/scripts/main.js @@ -2,93 +2,13 @@ import * as Terminal from "./terminal.js"; import * as Visual from "./visual.js"; document.addEventListener("DOMContentLoaded", () => { - document.getElementById("version").textContent = Terminal.VERSION; - Visual.bind(); Terminal.start(); - const dialog_backdrop = document.getElementById("dialog-backdrop"); - - const connect_button = document.getElementById("connect"); - const connect_dialog = document.getElementById("connect-dialog"); - const connect_url = document.getElementById("connect-url"); - const connect_submit = document.getElementById("connect-submit"); - const connect_close = connect_dialog.getElementsByClassName("dialog-close").item(0); - - connect_url.placeholder = window.location.host; - - connect_button.addEventListener("click", () => { - connect_url.value = ""; - connect_dialog.classList.add("show"); - dialog_backdrop.classList.add("show"); - connect_url.focus(); - Terminal.set_enable_input(false); - }); - - connect_submit.addEventListener("click", () => { - connect_close.click(); - const new_server = connect_url.value || window.location.host; + document.getElementById("connect").addEventListener("click", () => { + var new_server = prompt("Enter the address of the server you would like to connect to:"); + if (!new_server) return; Terminal.connect(new_server); }); - - connect_dialog.addEventListener("keydown", event => { - switch (event.key) { - case "Enter": - connect_submit.click(); - break; - case "Escape": - connect_close.click(); - break; - } - return; - }); - - [...document.getElementsByClassName("dialog-close")].forEach(dialog_close => { - dialog_close.addEventListener("click", () => { - [...document.getElementsByClassName("dialog")].forEach(element => { - element.classList.remove("show"); - }); - dialog_backdrop.classList.remove("show"); - Terminal.set_enable_input(true); - }); - }); - - dialog_backdrop.addEventListener("click", () => { - connect_close.click(); - }); }); -/** - * requests that the user confirm they wish to connect to an insecure (ws://) server. - * @returns a promise returning `true` or `false` based on user input. - */ -export async function user_confirm_insecure() { - const warn_dialog = document.getElementById("warn-dialog"); - const warn_close = warn_dialog.getElementsByClassName("dialog-close").item(0); - const dialog_backdrop = document.getElementById("dialog-backdrop"); - const warn_proceed = document.getElementById("warn-proceed"); - const warn_cancel = document.getElementById("warn-cancel"); - - warn_dialog.classList.add("show"); - dialog_backdrop.classList.add("show"); - - const user_input = await new Promise((Resolve, Reject) => { - warn_close.addEventListener('click', () => { - Resolve(false); - }); - warn_cancel.addEventListener('click', () => { - warn_close.click(); - }); - dialog_backdrop.addEventListener("click", () => { - warn_close.click(); - }); - warn_proceed.addEventListener('click', () => { - Resolve(true); - }); - }); - - warn_dialog.classList.remove("show"); - dialog_backdrop.classList.remove("show"); - - return user_input; -} diff --git a/public/scripts/terminal.js b/public/scripts/terminal.js index 31b6c17..14ec853 100644 --- a/public/scripts/terminal.js +++ b/public/scripts/terminal.js @@ -1,22 +1,15 @@ -import { user_confirm_insecure } from "./main.js"; - -export const VERSION = "1.1.0"; - -const foreground = localStorage.getItem("foreground"); -const background = localStorage.getItem("background"); -const content = document.getElementById("content"); -const server_indicator = document.getElementById("server-url"); -const mobile_input = document.getElementById("mobile-input"); - -var client; - var recv_buffer = []; var send_buffer = []; +var content; +var server_indicator; +var mobile_input; + +var client; + var my_colour = false; var pre_buffer_chars = 0; var server_url = ""; -var enable_input = true; const DATA_TYPES = { ping: 0, @@ -26,7 +19,6 @@ const DATA_TYPES = { backspace: 4, backword: 5, arrow: 6, - version: 7, }; /** @@ -56,6 +48,8 @@ to help you feel a little more comfortable, i've prepared some commands for you: server_url = new URL(window.location).searchParams.get("server") || window.location.host; + const foreground = localStorage.getItem("foreground"); + const background = localStorage.getItem("background"); if (foreground && background) { window.set_colours(foreground, background); } @@ -64,6 +58,10 @@ to help you feel a little more comfortable, i've prepared some commands for you: document.body.classList.add("lcd"); } + content = document.getElementById("content"); + server_indicator = document.getElementById("server-url"); + mobile_input = document.getElementById("mobile-input"); + document.addEventListener("keydown", handle_input); document.addEventListener("paste", handle_paste); @@ -88,7 +86,9 @@ to help you feel a little more comfortable, i've prepared some commands for you: } /** - * closes any existing websocket connection and attempts to create a new one. + * closes any existing websocket connection and attempts to create a new one. + * `wss://` is prefixed automatically if not present. + * insecure websockets are not recommended and support is not planned. * @param {string} server_url - the server websocket url to connect to. */ export async function connect(server_url) { @@ -110,92 +110,26 @@ export async function connect(server_url) { add_system_message("Connecting to the server...\n"); - if (server_url.startsWith("wss://") || server_url.startsWith("ws://")) { - client = new WebSocket(server_url); - add_client_events(client); - client.addEventListener('error', () => { - add_system_message(`\nConnection failed!\n`); - add_system_message("Ensure you entered the correct server URL, or check the console for more details.\n"); - }); - } else { - try { - client = await find_socket_at_url(server_url); - } catch (error) { - if (error === 'deny-insecure') { - server_indicator.innerText = "not connected"; - add_system_message(`\n[CONNECTION CLOSED]\n`); - return - } - add_system_message(`\nConnection failed!\n`); - add_system_message("Ensure you entered the correct server URL, or check the console for more details.\n"); - } - } + if (!server_url.startsWith("wss://")) server_url = "wss://" + server_url; + client = new WebSocket(server_url); - set_enable_input(true); -} - -/** - * attaches initial client events (open, message, close) - * @param {WebSocket} client the client to bind events to. - */ -function add_client_events(client) { - client.addEventListener('open', async () => { - console.log(`Successfully connected to ${client.url}.`); - - server_indicator.innerText = server_url; + client.addEventListener('open', () => { + server_indicator.innerText = server_url.slice(6); add_system_message(`Connection successful.\n\n`); add_system_message(`=== BEGIN SESSION ===\n\n`); - - client.send(JSON.stringify({ - type: DATA_TYPES.version, - text: VERSION - })); - - client.addEventListener('message', handle_message); - - client.addEventListener('close', () => { - server_indicator.innerText = "not connected"; - add_system_message(`\n[CONNECTION CLOSED]\n`); - }); - new_caret(); }); -} -/** - * probes the `server_url` for a secure websocket connection first, an insecure websocket second, or resolves to `false` on failure. - * @param {string} server_url - * @returns a promise either resolving to the created socket, or rejects to a string on failure. - */ -function find_socket_at_url(server_url) { - return new Promise((Resolve, Reject) => { - const secure_client = new WebSocket("wss://" + server_url); - add_client_events(secure_client); + client.addEventListener('message', handle_message); - secure_client.addEventListener('open', () => { - Resolve(secure_client); - }); + client.addEventListener('close', () => { + server_indicator.innerText = "not connected"; + add_system_message(`\n[CONNECTION CLOSED]\n`); + }); - secure_client.addEventListener('error', async () => { - set_enable_input(false); - if (!await user_confirm_insecure()) { - Reject('deny-insecure'); - set_enable_input(true); - return; - } - set_enable_input(true); - - const insecure_client = new WebSocket("ws://" + server_url); - add_client_events(insecure_client); - - insecure_client.addEventListener('open', () => { - Resolve(insecure_client); - }); - - insecure_client.addEventListener('error', () => { - Reject('error'); - }); - }); + client.addEventListener('error', () => { + add_system_message(`\nConnection failed!\n`); + add_system_message("Ensure you entered the correct server URL, or check the console for more details.\n"); }); } @@ -213,7 +147,7 @@ function add_system_message(text) { } /** - * handles incoming messages on the websocket. + * the message handler for the websocket. */ function handle_message(event) { var data; @@ -289,22 +223,11 @@ function new_caret() { content.appendChild(new_caret); } -/** - * sets whether or not the terminal should accept user input - * (handy for not interfering with dialogs) - * @param {value} boolean - */ -export function set_enable_input(value) { - enable_input = value; -} - /** * the input handler for the document. * automatically scrolls to the bottom of the page on valid key presses. */ function handle_input(event) { - if (!enable_input) return; - if (event.key == "'") { event.preventDefault(); } diff --git a/public/styles/main.css b/public/styles/main.css index cb5438b..531d55f 100644 --- a/public/styles/main.css +++ b/public/styles/main.css @@ -1,7 +1,6 @@ :root { --colour: #a6e3a1; --bgcolour: #1e1e2e; - --warn-colour: #e83737; } body { @@ -136,7 +135,6 @@ div#overlay { pointer-events: none; animation: linear .05s infinite alternate overlay-flicker; mix-blend-mode: overlay; - z-index: 100; } body.lcd div#overlay { @@ -175,84 +173,3 @@ body.lcd pre#content { pointer-events: none; } -#dialog-backdrop { - position: fixed; - top: 0; - left: 0; - width: 100vw; - height: 100vh; - display: none; - background: black; - opacity: .25; - z-index: 99; -} - -div.dialog { - position: fixed; - top: 50%; - left: 50%; - margin: auto auto; - padding: 1rem; - display: none; - transform: translate(-50%, -50%); - border: 1px solid var(--colour); - color: var(--colour); - background: var(--bgcolour); - text-shadow: 0 0 2em; - z-index: 99; -} - -div.dialog p { - margin: 0 0 1em 0; -} - -div.dialog input { - font-family: inherit; - color: inherit; - border: inherit; - background: transparent; -} - -div.dialog input::placeholder { - font-family: inherit; - color: inherit; - opacity: .25; -} - -div.dialog button { - font-family: inherit; - border: inherit; - color: inherit; - background: transparent; - cursor: pointer; -} - -#dialog-backdrop.show, -div.dialog.show { - display: block; -} - -div.dialog .dialog-close { - position: absolute; - top: -0.7em; - right: 1rem; - border: none; - background: var(--bgcolour); -} - -#connect-dialog { - max-width: calc(100vw - 4rem); - width: 16rem; -} - -#warn-dialog { - max-width: 18rem; - color: var(--warn-colour); - border-color: var(--warn-colour); -} - -*:focus { - outline: none; - box-shadow: 0 0 4px; -} - diff --git a/server/main.js b/server/main.js index ba992ce..b3e16f0 100644 --- a/server/main.js +++ b/server/main.js @@ -1,9 +1,12 @@ const fs = require('fs'); -const http = require('http'); +const https = require('https'); const path = require('path'); const Websocket = require('ws'); -const VERSION = "1.1.0"; +const config = { + cert: fs.readFileSync(process.env.SSL_CERT || './certs/cert.crt'), + key: fs.readFileSync(process.env.SSL_KEY || './certs/cert.key'), +} const MIME_TYPES = { default: "application/octet-stream", @@ -25,7 +28,6 @@ const DATA_TYPES = { backspace: 4, backword: 5, arrow: 6, - version: 7, }; const MOTDS = [ @@ -46,7 +48,7 @@ const MOTDS = [ ]; const STATIC_PATH = path.join(process.cwd(), "public"); -const CACHE_MAX_AGE = 14400 // 4 hours +const CACHE_MAX_AGE = 86400 // 1 day const BANNER = `Welcome to OpenTerminal! @@ -61,15 +63,9 @@ Please acquire a genuine copy. This connection will now terminate. ========================================= `; -const VERSION_ERROR = -`Your client does not match this server's version of OpenTerminal (${VERSION})! -If you are connecting to this site's own OpenTerminal server, please refresh the page or clear your browser's cache to update. -` -console.log("using env vars: " + Object.keys(process.env).filter(value => { return value.startsWith("OPENTERM_") }).join(', ')); -const HOST = process.env.OPENTERM_HOST || '0.0.0.0'; -const PORT = process.env.OPENTERM_PORT || 8080; -const TRUSTED_PROXIES = process.env.OPENTERM_TRUSTED_PROXIES ? process.env.OPENTERM_TRUSTED_PROXIES.split(',') : []; + +const PORT = process.env.PORT || 8080; const PING_INTERVAL = 10000; let sockets = []; @@ -78,7 +74,7 @@ const MAX_BUFFER_SIZE = 1024 * 1000; const MAX_MESSAGE_LENGTH = 1024; /** - * simple file fetching for the HTTP server + * simple file fetching for the HTTPS server */ async function get_file(url) { // ignore query params...not very helpful when getting files! @@ -90,28 +86,20 @@ async function get_file(url) { // check for path traversal. path traversal is...bad. const path_traversal = !file_path.startsWith(STATIC_PATH); - const exists = fs.existsSync(file_path) && fs.statSync(file_path).isFile(); + const exists = await fs.promises.access(file_path).then(...[() => true, () => false]); if (path_traversal || !exists) return false; const ext = path.extname(file_path).substring(1).toLowerCase(); - - try { - const data = await fs.promises.readFile(file_path, { encoding: 'utf8' }); - return { data, ext }; - } catch (error) { - console.error(error); - return false; - } - + const stream = fs.createReadStream(file_path); + return { stream, ext }; } -const server = http.createServer(async (req, res) => { - const request_time = new Date().getTime(); +const server = https.createServer(config, async (req, res) => { const file = await get_file(req.url); - if (file === false) { + if (!file) { res.writeHead(404); - res.end("404 not found!"); - return log_request(req, res, request_time); + res.end(); + return; } const mime_type = MIME_TYPES[file.ext] || MIME_TYPES.default; res.writeHead(200, { @@ -119,26 +107,12 @@ const server = http.createServer(async (req, res) => { "Cache-Control": `max-age=${CACHE_MAX_AGE}`, "Server": "OpenTerminal", }); - res.write(file.data); - res.end(); - return log_request(req, res, request_time); + file.stream.pipe(res); + // console.log(`${req.method} - ${req.url}`); }); -function log_request(req, res, time) { - const elapsed = new Date().getTime() - time; - console.log(`${new Date().toISOString()} - ${req.method} ${req.url} - ${res.statusCode} - ${get_real_address(req)} in ${elapsed}ms`); -} - -function get_real_address(req) { - if (TRUSTED_PROXIES.indexOf(req.socket.localAddress) !== -1 && req.headers['x-forwarded-for']) { - return req.headers['x-forwarded-for']; - } - return req.socket.localAddress; -} - const wss = new Websocket.Server({ server }); -wss.on('connection', (socket, req) => { - console.log(`${new Date().toISOString()} - WS OPEN - ${get_real_address(req)} (active connections: ${sockets.length + 1})`); +wss.on('connection', socket => { /* socket.colour = generate_colour(); socket.send(JSON.stringify({ @@ -159,16 +133,18 @@ wss.on('connection', (socket, req) => { })); } - const ping_routine = setInterval( + const ping_interval = setInterval( function() { socket.send(JSON.stringify({ type: DATA_TYPES.ping, })) }, PING_INTERVAL); - socket.ping_routine = ping_routine; + socket.ping_interval = ping_interval; sockets.push(socket); + // console.log(`new connection.\n\tcurrent connections: ${sockets.length}`); + socket.on('message', event => { try { handle_message(JSON.parse(event), socket) @@ -182,7 +158,7 @@ wss.on('connection', (socket, req) => { }); socket.on('close', () => { - clearInterval(socket.ping_routine); + clearInterval(socket.ping_interval); sockets = sockets.filter(s => s !== socket); // console.log(`connection closed.\n\tcurrent connections: ${sockets.length}`); }); @@ -192,27 +168,6 @@ wss.on('connection', (socket, req) => { * handles parsed JSON data sent by the client. */ function handle_message(data, user) { - if (user.version === undefined) { - if (data.type !== DATA_TYPES.version) { - user.send(JSON.stringify({ - type: DATA_TYPES.text, - text: VERSION_ERROR - })); - user.close(); - return; - } else if (data.text !== VERSION) { - user.send(JSON.stringify({ - type: DATA_TYPES.text, - text: VERSION_ERROR - })); - user.close(); - return; - } else { - user.version = data.text; - return; - } - } - switch (data.type) { case DATA_TYPES.backword: var break_point = buffer.lastIndexOf(" "); @@ -270,9 +225,8 @@ function generate_colour() { return result; } -server.listen(PORT, HOST, () => { - console.log(`OpenTerminal is now LIVE on http://${HOST === '0.0.0.0' ? '127.0.0.1' : HOST}:${PORT}`); - if (TRUSTED_PROXIES.length > 0) console.log(`Using X-Forwarded-For headers for hosts: ${TRUSTED_PROXIES.join(", ")}`); +server.listen(PORT, () => { + console.log(`OpenTerminal is now LIVE on https://127.0.0.1:${PORT}!`); }); /**