mirror of
https://github.com/Termix-SSH/Termix.git
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LukeGus
c94a453f1e
Adds a hardcoded process:transport-owner tier so the terminal can own its WebSocket server and ssh2 clients, which cannot cross the worker boundary.
84 lines
3.1 KiB
JavaScript
84 lines
3.1 KiB
JavaScript
/**
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* SSH Terminal - first-party, in-process plugin.
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*
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* This plugin runs on the main thread rather than in a worker, because it IS
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* the SSH transport rather than a consumer of one: it owns a WebSocket server
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* and long-lived ssh2 clients, and neither a live socket nor an ssh2 Client can
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* cross the structured-clone postMessage boundary a worker plugin talks over.
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* See src/backend/plugins/first-party.ts for why that tier is a hardcoded
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* allowlist and not something a manifest can ask for.
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*
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* The terminal's implementation stays in core (src/backend/hosts/terminal/)
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* rather than being copied in here. Two reasons:
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* - session-manager has six consumers outside the terminal (terminal routes,
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* open-tabs, user-image-storage, collab, and session-sharing twice), so it
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* is shared infrastructure, not plugin-private code.
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* - the terminal needs plaintext host credentials to connect, which ctx.hosts
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* deliberately never returns (PluginHostView is a 13-field allowlist that
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* excludes password, key and passphrase).
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*
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* What this plugin owns is the lifecycle: enabling it starts the WS server,
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* disabling it closes live sessions and frees the port.
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*/
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import { createRequire } from "node:module";
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import path from "node:path";
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import { fileURLToPath } from "node:url";
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/**
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* Resolves the compiled core terminal module.
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*
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* The plugin ships beside dist/backend, so in a built server the module is at
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* dist/backend/backend/hosts/terminal/index.js. Under vitest and dev the
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* plugin is loaded from the repo instead, where the source .ts is the thing
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* that exists and tsx is already handling it.
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*/
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async function loadTerminalModule() {
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const here = path.dirname(fileURLToPath(import.meta.url));
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const require = createRequire(import.meta.url);
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const candidates = [
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// Built: plugins/ssh-terminal/backend -> dist/backend/backend/...
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path.resolve(here, "../../../backend/backend/hosts/terminal/index.js"),
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// Repo layout, compiled output present.
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path.resolve(here, "../../../dist/backend/backend/hosts/terminal/index.js"),
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// Repo layout, running from source under tsx.
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path.resolve(here, "../../../src/backend/hosts/terminal/index.ts"),
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];
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for (const candidate of candidates) {
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try {
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require.resolve(candidate);
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} catch {
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continue;
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}
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return import(new URL(`file://${candidate.replace(/\\/g, "/")}`).href);
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}
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throw new Error(
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`ssh-terminal could not locate the terminal module. Looked in:\n ${candidates.join("\n ")}`,
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);
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}
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let terminal = null;
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export async function activate(ctx) {
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terminal = await loadTerminalModule();
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await terminal.startTerminalServer();
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// Published so collab and session-sharing can reach live sessions without
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// importing a plugin. Revoked automatically when this plugin is disabled.
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ctx.registry.provide("terminal.sessions", terminal.sessionManager ?? null);
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ctx.log.info(
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`SSH terminal listening on ${terminal.TERMINAL_WS_PORT ?? 30002}`,
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);
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}
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export async function deactivate() {
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if (!terminal) return;
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await terminal.stopTerminalServer();
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terminal = null;
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}
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