101 lines
3.3 KiB
JavaScript
101 lines
3.3 KiB
JavaScript
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// @dsh-local/portal-entry — PoC host plugin for the dsh web profile.
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//
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// Goal: prove the official profile-plugin mechanism on dsh 0.1.2-rc.1
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// (install -> load -> persist across restart -> remove), with zero risk to
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// the running profile: every side effect is guarded, nothing can throw out
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// of apply().
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//
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// v1 evidence channel: an append-only marker file
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// $DSH_HOME/.dsh-poc-portal-entry.log
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// written when the row is instantiated. Tool registration (defineTool from
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// @deepseek-ai/dsh-tools) is attempted defensively; failure is logged, never
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// fatal.
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import { appendFileSync } from "node:fs";
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import { join } from "node:path";
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const MARKER = ".dsh-poc-portal-entry.log";
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const PORTAL_ROOT = process.env.DSH_SERVER_LOGIN_URL ?? "http://127.0.0.1:3080";
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/** Append one line to the marker file. Never throws. */
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function log(line) {
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try {
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const home = process.env.DSH_HOME || process.env.HOME || ".";
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appendFileSync(join(home, MARKER), `${new Date().toISOString()} ${line}\n`);
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} catch {
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// marker writes must never take the profile down
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}
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}
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/** Build the portal_ping tool definition (lazy import of defineTool). */
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async function portalPingDefinition() {
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const { defineTool } = await import("@deepseek-ai/dsh-tools");
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return defineTool({
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name: "portal_ping",
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description:
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"PoC tool: probe the dsh-server-login portal reachable from this instance. Returns HTTP status and body size of the portal root.",
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parameters: {},
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output: {
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schema: {
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type: "object",
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additionalProperties: false,
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properties: {
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ok: { type: "boolean", required: true },
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status: { type: "number" },
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bytes: { type: "number" },
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note: { type: "string" }
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}
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}
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},
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isConcurrencySafe: () => true,
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async execute() {
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try {
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const res = await fetch(PORTAL_ROOT, { redirect: "manual" });
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const body = await res.arrayBuffer();
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return {
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ok: true,
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status: res.status,
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bytes: body.byteLength,
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note: `portal root reachable from instance (${PORTAL_ROOT})`
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};
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} catch (err) {
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return { ok: false, note: `portal unreachable: ${String(err?.message ?? err)}` };
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}
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}
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});
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}
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/** Cordis-style plugin apply. Row declares inject:[tools], so ctx.tools is
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* available; every failure is still contained and logged. */
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export function apply(ctx) {
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log(`apply pid=${process.pid} dshHome=${process.env.DSH_HOME ?? ""} home=${process.env.HOME ?? ""}`);
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const register = () => {
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try {
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if (!ctx.tools || typeof ctx.tools.register !== "function") {
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log("tools service unavailable at apply time");
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return;
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}
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portalPingDefinition()
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.then((def) => {
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try {
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ctx.tools.register(def);
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log("tool portal_ping registered");
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} catch (err) {
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log(`tool register threw: ${String(err?.message ?? err)}`);
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}
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})
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.catch((err) => log(`tool build failed: ${String(err?.message ?? err)}`));
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} catch (err) {
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log(`tools access failed: ${String(err?.message ?? err)}`);
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}
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};
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try {
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register();
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} catch (err) {
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log(`register wrapper failed: ${String(err?.message ?? err)}`);
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}
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}
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export default apply;
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