araharah-executor
d600d6e71a
- Deploy walkthrough revealed a bare workers.dev origin setWebhook answers ok but drops updates at / (404) - Normalize WEBHOOK_URL: no path -> append /telegram/webhook; invalid URL -> fail fast, never echo values (T-02-04) - .dev.vars.example documents the path expectation
94 lines
3.5 KiB
JavaScript
94 lines
3.5 KiB
JavaScript
#!/usr/bin/env node
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/*
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* set-webhook.mjs — one-time setWebhook registration (D-16, D-17).
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* -----------------------------------------------------------------
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* Points Telegram at the Worker's /telegram/webhook route and arms the
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* secret-token channel: the `secret_token` value sent here is the one
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* Telegram echoes back in X-Telegram-Bot-Api-Secret-Token on every update,
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* which the Worker's webhook adapter constant-time-compares against
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* env.WEBHOOK_SECRET (T-02-03).
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*
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* Inputs come from bot/.dev.vars (gitignored, D-15): BOT_TOKEN,
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* WEBHOOK_URL, WEBHOOK_SECRET. The bot token is never echoed — on failure
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* only the API's error_code/description are printed (T-02-04).
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* WEBHOOK_URL is normalized: if the configured origin points at the
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* workers.dev root (no path), /telegram/webhook is appended automatically —
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* a bare origin passed the 2026-10-22 deploy walkthrough caused Telegram to
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* answer ok but deliver nothing (updates routed to "/" → 404).
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* Exit 0 only when Telegram answers ok:true.
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*/
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import { readFileSync } from "node:fs";
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import path from "node:path";
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import { fileURLToPath } from "node:url";
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function readDevVars() {
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const devVarsPath = path.join(fileURLToPath(new URL(import.meta.url)), "..", "..", ".dev.vars");
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let raw = "";
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try {
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raw = readFileSync(devVarsPath, "utf8");
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} catch {
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return {};
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}
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const vars = {};
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for (const line of raw.split("\n")) {
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const trimmed = line.trim();
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if (trimmed.length === 0 || trimmed.startsWith("#")) continue;
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const eq = trimmed.indexOf("=");
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if (eq === -1) continue;
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vars[trimmed.slice(0, eq).trim()] = trimmed.slice(eq + 1).trim();
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}
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return vars;
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}
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const devVars = readDevVars();
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const token = process.env.BOT_TOKEN ?? devVars.BOT_TOKEN;
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const webhookUrl = process.env.WEBHOOK_URL ?? devVars.WEBHOOK_URL;
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const secret = process.env.WEBHOOK_SECRET ?? devVars.WEBHOOK_SECRET;
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const missing = ["BOT_TOKEN", "WEBHOOK_URL", "WEBHOOK_SECRET"].filter(
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(name) => !{ BOT_TOKEN: token, WEBHOOK_URL: webhookUrl, WEBHOOK_SECRET: secret }[name],
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);
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if (missing.length > 0) {
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console.error(`Missing ${missing.join(", ")} — set them in bot/.dev.vars (see .dev.vars.example; never commit).`);
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process.exit(1);
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}
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// Auto-append the route path when the URL has none — prevents the recurring
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// misconfiguration where a bare workers.dev origin is registered and the
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// Worker answers ok:true but Telegram updates land on "/" (404, silent drop).
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const WEBHOOK_ROUTE = "/telegram/webhook";
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let normalizedUrl;
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try {
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const parsed = new URL(webhookUrl);
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if (parsed.pathname === "/" || parsed.pathname === "") {
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parsed.pathname = WEBHOOK_ROUTE;
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normalizedUrl = parsed.toString();
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console.log(`WEBHOOK_URL had no path — normalized to ...${WEBHOOK_ROUTE}`);
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} else {
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normalizedUrl = webhookUrl;
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}
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} catch {
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console.error(`WEBHOOK_URL is not a valid URL — check bot/.dev.vars (value never echoed).`);
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process.exit(1);
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}
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const payload = {
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url: normalizedUrl,
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secret_token: secret,
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allowed_updates: ["message"],
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};
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const res = await fetch(`https://api.telegram.org/bot${token}/setWebhook`, {
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method: "POST",
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headers: { "content-type": "application/json" },
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body: JSON.stringify(payload),
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});
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const body = await res.json();
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if (!body.ok) {
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console.error(`setWebhook failed: ${body.error_code ?? "?"} ${body.description ?? "unknown error"}`);
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process.exit(1);
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}
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console.log(`setWebhook ok:true — updates will be delivered to the configured URL with the secret-token header.`);
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process.exit(0);
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