Here is your Helm Pro license key:

${key}

Open Helm and click I have a key to activate.

This key works on up to 2 Macs. Keep it somewhere safe.

\n`,\n };\n const res = await fetch(\"https://api.resend.com/emails\", {\n method: \"POST\",\n headers: {\n Authorization: `Bearer ${resendKey}`,\n \"Content-Type\": \"application/json\",\n },\n body: JSON.stringify(body),\n });\n if (!res.ok) {\n throw new Error(`Resend error ${res.status}: ${await res.text()}`);\n }\n}\n\n// ── Input validation ──────────────────────────────────────────────────────────\nconst STRIPE_BODY_MAX = 65536; // 64 KB — Stripe payloads are well under this\n\nfunction isSafeEmail(e: unknown): e is string {\n return typeof e === \"string\" && e.length <= 254 &&\n /^[^\\s@]+@[^\\s@]+\\.[^\\s@]+$/.test(e);\n}\n\n// ── Handler ───────────────────────────────────────────────────────────────────\nexport default async function (req: Request): Promise {\n if (req.method !== \"POST\") {\n return new Response(\"Method Not Allowed\", { status: 405 });\n }\n\n // Reject oversized bodies before rate limiting to save blob writes on floods\n const contentLength = parseInt(req.headers.get(\"content-length\") ?? \"0\", 10);\n if (contentLength > STRIPE_BODY_MAX) {\n return Response.json({ ok: false, reason: \"payload_too_large\" }, {\n status: 413,\n });\n }\n\n const limited = await rateLimit(req);\n if (limited) return limited;\n\n const webhookSecret = Deno.env.get(\"STRIPE_WEBHOOK_SECRET\") ?? \"\";\n const licensePrivate = Deno.env.get(\"HELM_LICENSE_PRIVATE_KEY\") ?? \"\";\n const resendKey = Deno.env.get(\"RESEND_API_KEY\") ?? \"\";\n const fromEmail = Deno.env.get(\"HELM_FROM_EMAIL\") ?? \"\";\n let licenseKeyObj: KeyObject | null = null;\n if (licensePrivate) {\n try {\n licenseKeyObj = createPrivateKey(\n normalizePem(licensePrivate, \"PRIVATE KEY\"),\n );\n } catch {\n licenseKeyObj = null;\n }\n }\n\n const rawBody = await req.text();\n if (rawBody.length > STRIPE_BODY_MAX) {\n return Response.json({ ok: false, reason: \"payload_too_large\" }, {\n status: 413,\n });\n }\n const sigHeader = req.headers.get(\"stripe-signature\") ?? \"\";\n\n // Fail loud when the webhook secret is missing. Without it the Stripe\n // signature can't be verified, and returning 200 would make Stripe treat the\n // purchase as delivered — no key minted, no email, no retry. A 500 makes\n // Stripe retry and surfaces the misconfiguration instead of hiding it.\n if (webhookSecret === \"whsec_PLACEHOLDER\" || webhookSecret === \"\") {\n console.error(\n \"helmCheckout: STRIPE_WEBHOOK_SECRET not configured — rejecting\",\n );\n return Response.json({ ok: false, reason: \"server_misconfigured\" }, {\n status: 500,\n });\n }\n\n if (!verifyStripeSignature(rawBody, sigHeader, webhookSecret)) {\n return new Response(\"Unauthorized\", { status: 401 });\n }\n\n let payload: any;\n try {\n payload = JSON.parse(rawBody);\n } catch {\n return new Response(\"Bad Request\", { status: 400 });\n }\n\n if (payload.type !== \"checkout.session.completed\") {\n return Response.json({ received: true });\n }\n\n const email = payload.data?.object?.customer_details?.email;\n if (!isSafeEmail(email)) {\n return Response.json({ ok: false, reason: \"no_email\" }, { status: 400 });\n }\n\n if (!licenseKeyObj) {\n return Response.json({ ok: false, reason: \"server_misconfigured\" }, {\n status: 500,\n });\n }\n\n // Idempotency: Stripe delivers events at-least-once and retries on any non-2xx,\n // and the mint nonce is random — so without this each redelivery would produce\n // a new valid key (each good for 2 machines). Key the mint on the Checkout\n // Session id; redelivery returns the same key instead of minting again.\n const sessionId = payload.data?.object?.id;\n const mintBlobKey =\n typeof sessionId === \"string\" && sessionId.length > 0 &&\n sessionId.length <= 128\n ? \"helm_minted_\" +\n createHash(\"sha256\").update(sessionId).digest(\"hex\").slice(0, 32)\n : null;\n\n // Mint is idempotent (key stable per session), but email delivery is tracked\n // separately: a transient Resend failure on the first delivery must NOT\n // permanently block the email on retry. So a redelivery whose stored record has\n // emailSent=false re-attempts the email with the same key.\n let key: string;\n let emailAlreadySent = false;\n if (mintBlobKey) {\n const prior: { key: string; emailSent?: boolean } | null = await blob\n .getJSON(mintBlobKey);\n if (prior?.key) {\n key = prior.key;\n emailAlreadySent = prior.emailSent === true;\n } else {\n key = mintKey(email, licenseKeyObj);\n // Persist before emailing so a delivery failure can't cause a re-mint on retry.\n await blob.setJSON(mintBlobKey, {\n key,\n email,\n emailSent: false,\n at: Date.now(),\n });\n }\n } else {\n key = mintKey(email, licenseKeyObj);\n }\n\n if (emailAlreadySent) return Response.json({ ok: true });\n\n if (resendKey && resendKey !== \"re_PLACEHOLDER\" && fromEmail) {\n try {\n await sendLicenseEmail(email, key, resendKey, fromEmail);\n if (mintBlobKey) {\n await blob.setJSON(mintBlobKey, {\n key,\n email,\n emailSent: true,\n at: Date.now(),\n });\n }\n } catch (err) {\n console.error(\"Email delivery failed:\", err);\n return Response.json({ ok: true, warning: \"email_failed\" });\n }\n } else {\n // Don't log the raw key — it's a bearer credential and lands in Val.town\n // dashboard logs. Hash prefix + email is enough to correlate.\n const keyHash = createHash(\"sha256\").update(key).digest(\"hex\").slice(0, 12);\n console.log(\n `helmCheckout: email not configured, minted key for ${email} (sha256:${keyHash})`,\n );\n }\n\n return Response.json({ ok: true });\n}","deleted","label",[114],"pulls",1,"forks","envVars",{"_137":139,"_140":52},"connections",{"_137":52,"_138":52},"count","unfilledCount",5,"emptyCount",{"_20":113,"_13":114,"_115":116,"_117":-5,"_118":21,"_119":30,"_120":107,"_22":142,"_29":122,"_123":124,"_125":126,"_127":38,"_128":-5,"_143":144,"_89":145},["D",1782716069613],"children",[],[114],["D",1780019522806],{"_11":12,"_87":83},{"_11":12,"_80":81,"_82":83,"_45":46,"_84":85,"_86":38},{"_29":30,"_13":26,"_20":21,"_27":28,"_31":-5,"_32":-5,"_75":-5,"_76":-5,"_77":-5,"_78":14,"_79":12},"ctx",{"_68":-5,"_109":183,"_184":185,"_186":187,"_188":38,"_189":38,"_190":38,"_191":107,"_192":-5,"_193":-7,"_194":-7,"_195":52,"_196":38,"_197":38,"_198":-5,"_199":38,"_200":38,"_201":38,"_202":-5},"ENV",{"_154":155,"_156":157,"_158":26,"_159":160,"_161":162,"_163":164,"_165":166,"_167":168,"_169":170,"_171":172,"_173":174,"_175":176,"_177":178,"_179":180,"_181":182},"REACT_APP_SENTRY_DSN","https://586020d86f05489db63a554690acf1e9@o1398359.ingest.sentry.io/6724499","RENDER_GIT_COMMIT","e87eb04e707cf64e7e532c8e8ec395f209e17f15","RENDER_GIT_BRANCH","POSTHOG_API_TOKEN","phc_nmoyuAkStEZuUp69rYlg1DZgrIt19Gx0Y4Hwf8tGgJP","POSTHOG_API_HOST","https://wart.val.town","WEB_API_TEMPLATE","https://{val}.web.val.run","APP_URL","https://www.val.town","MODULE_URL","https://esm.town","VANITY_WEB_API_TEMPLATE","https://{label}.val.run/","DENOLS_URL","https://lsp.val.town","NODE_ENV","production","CLOUDFLARE_TURNSTILE_SITE_KEY","0x4AAAAAACtaIZJH7s9rBMZ6","GOOGLE_CLIENT_ID","875989696899-jtsqkhlbdv5jrlsk8631p7ipjg3c6o62.apps.googleusercontent.com","STRIPE_PUBLISHABLE_KEY","pk_live_51N2zvWEpZTTLipIkVEwXrUG9AT0yeOOEYxszarZT1jpsZV58Ly6wlg3SltZpHN26CUalOBmUSY7adQRQiSkCZz2500qSXNkf8Y","API_URL","https://api.val.town",[],"preferencesKeybindings","default","preferencesTheme","light","preferencesFixers","preferencesCopilot","preferencesSelectionAi","preferencesCloseBrackets","preferencesChatPanelState","preferencesDprint","preferencesDenofmt","notificationCount","flagDenols","isBusinessOrgMember","businessOrgHandle","isBusinessOrgAdmin","isHigherTownieTier","navCollapsed","currentOrgId"]

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