[{"_1":2,"_3":-5,"_4":-5},"loaderData",{"_5":6,"_7":8,"_9":10},"actionData","errors","root",{"_207":208,"_209":210},"routes/_app.x.$handle.$name",{"_99":98,"_32":45,"_108":89,"_27":109,"_13":14,"_110":-5,"_11":111,"_112":113,"_114":115,"_116":117,"_118":119,"_20":-5,"_120":-5,"_121":-5,"_122":25,"_123":124,"_125":59,"_126":-5,"_127":-5,"_128":129},"routes/_app.x.$handle.$name.branch.$branch.version.$version.diff",{"_11":12,"_13":14,"_15":16,"_17":-5,"_18":-5},"project",{"_43":44,"_32":45,"_38":46,"_47":-5,"_48":25,"_49":50,"_51":50,"_52":53,"_54":-5,"_18":55,"_56":57,"_58":59,"_60":-5,"_61":-5,"_62":63,"_64":65,"_66":67,"_68":69,"_70":71,"_72":-5,"_73":74,"_75":74,"_76":77,"_78":77,"_79":77,"_80":74,"_81":74,"_82":83,"_84":85,"_86":87,"_88":25},"version",15,"changes",[19],"aiChatInfo","userId",{"_20":21,"_22":23,"_24":25,"_26":25,"_27":28,"_29":28},"file",{"_30":31,"_32":28,"_33":34,"_35":37,"_38":39,"_40":14,"_41":42,"_24":25},"previous",{"_30":31,"_32":28,"_33":34,"_35":36},"deleted",false,"deletedHere","path","inbox.ts","latestPath","fileId","5ac33d00-5fa2-11f1-842a-1607ee4eb77e","name","fileType","email","content","// Email val: receives forwarded emails, extracts a 6-digit OTP, stores it.\n// Anything that isn't an OTP (e.g. Google's forwarding confirmation link) is\n// forwarded to your real inbox so you can act on it.\n// Learn more: https://docs.val.town/vals/email/\nimport { email } from \"https://esm.town/v/std/email\";\nimport { extractOtp, saveOtp } from \"./db.ts\";\n\ninterface Email {\n from: string;\n to: string[];\n subject?: string;\n text?: string;\n html?: string;\n attachments: File[];\n headers: Record;\n}\n\n/** Strip HTML tags to plain text as a fallback when no text body is present. */\nfunction htmlToText(html: string): string {\n return html\n .replace(//gi, \" \")\n .replace(//gi, \" \")\n .replace(/<[^>]+>/g, \" \")\n .replace(/ /gi, \" \")\n .replace(/\\s+/g, \" \");\n}\n\nexport default async function (e: Email) {\n const body = e.text?.trim() || (e.html ? htmlToText(e.html) : \"\");\n\n // --- THE NEW GUARD CLAUSE ---\n // Gmail's verification email contains a confirmation code. We must intercept\n // it before the regex extracts it, and forward it straight to your real inbox.\n const isVerification = e.from.includes(\"forwarding-noreply@google.com\") ||\n e.subject?.includes(\"Forwarding Confirmation\");\n\n if (isVerification) {\n console.log(\n \"Intercepted Gmail Forwarding Confirmation. Forwarding to owner.\",\n );\n await email({\n subject: `[ACTION REQUIRED] Fwd: ${\n e.subject ?? \"Gmail Forwarding Confirmation\"\n }`,\n text:\n `Click the confirmation link below to activate your Gmail forwarding rule:\\n\\n${body}`,\n html: e.html,\n });\n return;\n }\n // ----------------------------\n\n const haystack = `${e.subject ?? \"\"}\\n${body}`;\n const code = extractOtp(haystack);\n\n if (!code) {\n // Not an OTP — forward the whole message to your real inbox.\n console.log(\n `No OTP in email from ${e.from} (\"${\n e.subject ?? \"\"\n }\") — forwarding to owner`,\n );\n await email({\n subject: `[OTP relay] Fwd: ${e.subject ?? \"(no subject)\"}`,\n text: `Forwarded from: ${e.from}\\n\\n${body}`,\n html: e.html,\n });\n return;\n }\n\n await saveOtp(code, e.from, e.subject ?? null);\n console.log(`Stored OTP ${code} from ${e.from} (\"${e.subject ?? \"\"}\")`);\n}","// Email val: receives forwarded emails, extracts a 6-digit OTP, stores it.\n// Anything that isn't an OTP (e.g. Google's forwarding confirmation link) is\n// forwarded to your real inbox so you can act on it.\n// Learn more: https://docs.val.town/vals/email/\nimport { email } from \"https://esm.town/v/std/email\";\nimport { extractOtp, saveOtp } from \"./db.ts\";\nimport { encryptOtp } from \"./crypto.ts\";\n\ninterface Email {\n from: string;\n to: string[];\n subject?: string;\n text?: string;\n html?: string;\n attachments: File[];\n headers: Record;\n}\n\n/** Strip HTML tags to plain text as a fallback when no text body is present. */\nfunction htmlToText(html: string): string {\n return html\n .replace(//gi, \" \")\n .replace(//gi, \" \")\n .replace(/<[^>]+>/g, \" \")\n .replace(/ /gi, \" \")\n .replace(/\\s+/g, \" \");\n}\n\nexport default async function (e: Email) {\n const body = e.text?.trim() || (e.html ? htmlToText(e.html) : \"\");\n\n // --- THE NEW GUARD CLAUSE ---\n // Gmail's verification email contains a confirmation code. We must intercept\n // it before the regex extracts it, and forward it straight to your real inbox.\n const isVerification = e.from.includes(\"forwarding-noreply@google.com\") ||\n e.subject?.includes(\"Forwarding Confirmation\");\n\n if (isVerification) {\n console.log(\n \"Intercepted Gmail Forwarding Confirmation. Forwarding to owner.\",\n );\n await email({\n subject: `[ACTION REQUIRED] Fwd: ${\n e.subject ?? \"Gmail Forwarding Confirmation\"\n }`,\n text:\n `Click the confirmation link below to activate your Gmail forwarding rule:\\n\\n${body}`,\n html: e.html,\n });\n return;\n }\n // ----------------------------\n\n const haystack = `${e.subject ?? \"\"}\\n${body}`;\n const code = extractOtp(haystack);\n\n if (!code) {\n // Not an OTP — forward the whole message to your real inbox.\n console.log(\n `No OTP in email from ${e.from} (\"${\n e.subject ?? \"\"\n }\") — forwarding to owner`,\n );\n await email({\n subject: `[OTP relay] Fwd: ${e.subject ?? \"(no subject)\"}`,\n text: `Forwarded from: ${e.from}\\n\\n${body}`,\n html: e.html,\n });\n return;\n }\n\n const token = Deno.env.get(\"OTP_API_TOKEN\");\n let codeToSave = code;\n\n if (token) {\n console.log(\"OTP_API_TOKEN found, encrypting OTP before storage...\");\n try {\n const encryptedData = await encryptOtp(code, token);\n codeToSave = JSON.stringify(encryptedData);\n } catch (err) {\n console.error(\"Encryption failed:\", err);\n // Fallback or handle error. Here we store plaintext if encryption fails,\n // but ideally we should throw. Let's throw.\n throw new Error(\"Failed to encrypt OTP\");\n }\n }\n\n await saveOtp(codeToSave, e.from, e.subject ?? null);\n console.log(`Stored OTP from ${e.from} (\"${e.subject ?? \"\"}\")`);\n}","createdAt",["D",1780941325718],"branchVersion","branchId","d0ba382a-b9ae-4892-ac97-b2e7d367fda4","id","f91cdf72-9cdc-414c-838d-17edd2984586","email-val",["D",1780528612421],"deletedAt","legacyEnvVars","privacy","public","httpPrivacy","description","Relay 6-digit OTPs from forwarded emails to a browser extension","imageUrl","3d9c1e5f-c245-4993-94bd-8561053c03ab","pinnedFileId","5f73cb62-5fa2-11f1-842a-1607ee4eb77e","pinPreview",true,"pinMigrated","screenshotVersion","likeCount",0,"orgId","019e8fc0-9a70-73b8-a383-7d13f37931fb","tursoName","f91cdf729cdc414c838d17edd2984586","tursoHostname","f91cdf729cdc414c838d17edd2984586-val-town.aws-us-east-2.turso.io","tursoMeasuredAt",["D",1789509672838],"pinned","userPerm","r","valPerm","blobPerm","rw","emailPerm","sqlitePerm","projectPerm","telemetryPerm","user",{"_99":98,"_107":103},"org",{"_99":98,"_100":101,"_102":103,"_18":55,"_104":105,"_106":25},"branch",{"_13":14,"_32":89,"_43":42,"_90":44,"_91":-5,"_92":-5,"_93":-5,"_94":-5,"_95":-5,"_96":45,"_97":98},"isOwned","main","projectId","forkedBranchId","forkedBranchVersion","forkedProjectPrivacy","forkedProjectId","forkedProjectOrgId","projectName","userHandle","indenigrate","handle","displayName","Devansh Soni","avatar","https://lh3.googleusercontent.com/a/ACg8ocJwD0RUE37HSMwrSwLEcHlgx6sHh2qmNBrvwUFvZmymKRTjQW8=s96-c","tier","free","canRestrictVals","profileImageUrl","branchName","","adoptOrgId",{"_43":44,"_32":45,"_38":202,"_47":-5,"_48":25,"_49":50,"_51":50,"_52":53,"_54":-5,"_18":55,"_56":57,"_58":59,"_60":-5,"_61":-5,"_62":63,"_64":65,"_66":67,"_68":69,"_70":203,"_72":-5,"_73":74,"_75":74,"_76":77,"_78":77,"_79":77,"_80":74,"_81":74,"_82":204,"_84":205,"_86":206,"_88":25},"tree",[181,182,183,184,185],"files",[181,182,183,184,185],"counts",{"_171":63,"_172":147,"_173":145,"_174":175,"_176":177},"contents",[130,131,132,133,134],"upstreamProject","upstreamBranch","emptyEnvVars","flags",[],"hasHttpFiles","grants","orgs","customDomains",{},{"_43":165,"_32":166,"_30":167,"_136":-5,"_41":42,"_40":139,"_137":59,"_38":168,"_13":63,"_33":20,"_35":169,"_24":25,"_140":-5,"_27":170},{"_43":158,"_32":159,"_30":57,"_136":-5,"_41":42,"_40":160,"_137":59,"_38":161,"_13":63,"_33":162,"_35":163,"_24":25,"_140":-5,"_27":164},{"_43":151,"_32":152,"_30":153,"_136":-5,"_41":42,"_40":154,"_137":59,"_38":155,"_13":145,"_33":148,"_35":156,"_24":25,"_140":-5,"_27":157},{"_43":142,"_32":143,"_30":144,"_136":-5,"_41":42,"_40":145,"_137":59,"_38":146,"_13":147,"_33":148,"_35":149,"_24":25,"_140":-5,"_27":150},{"_43":135,"_32":28,"_30":31,"_136":-5,"_41":42,"_40":14,"_137":59,"_38":138,"_13":139,"_33":34,"_35":37,"_24":25,"_140":-5,"_27":141},"cafdd962-8983-455b-a644-cffda74b3795","parentId","latest",["D",1780941325718],5,"label",[28],"aa44848b-74da-466d-8d23-98471ef4b73d","db.ts","4e151966-5fa2-11f1-89b0-1607ee4eb77e",2,["D",1780528624562],1,"script","// Shared SQLite schema + helpers for the OTP relay.\nimport { sqlite } from \"https://esm.town/v/std/sqlite/main.ts\";\n\nexport const TTL_MS = 5 * 60 * 1000; // codes expire after 5 minutes\n\nexport interface OtpRecord {\n code: string;\n sender: string | null;\n subject: string | null;\n created_at: number;\n}\n\nexport async function initDb() {\n await sqlite.execute(`CREATE TABLE IF NOT EXISTS otp_codes (\n id INTEGER PRIMARY KEY AUTOINCREMENT,\n code TEXT NOT NULL,\n sender TEXT,\n subject TEXT,\n created_at INTEGER NOT NULL\n )`);\n}\n\n/** Delete any codes older than the TTL. Keeps the table small and enforces expiry. */\nexport async function purgeExpired() {\n await sqlite.execute({\n sql: \"DELETE FROM otp_codes WHERE created_at < ?\",\n args: [Date.now() - TTL_MS],\n });\n}\n\n/** Extract the first plausible 6-digit OTP from a block of text. */\nexport function extractOtp(text: string): string | null {\n if (!text) return null;\n // Match a standalone run of exactly 6 digits (not embedded in a longer number).\n // Allows an optional separator in the middle (e.g. \"123 456\" or \"123-456\").\n const match = text.match(/(? {\n await initDb();\n await purgeExpired();\n const cutoff = Date.now() - TTL_MS;\n const result = await sqlite.execute({\n sql:\n \"SELECT code, sender, subject, created_at FROM otp_codes WHERE created_at >= ? ORDER BY created_at DESC LIMIT 1\",\n args: [cutoff],\n });\n if (result.rows.length === 0) return null;\n const row = result.rows[0] as unknown as OtpRecord;\n const age = Date.now() - row.created_at;\n return { ...row, age_ms: age, expires_in_ms: TTL_MS - age };\n}\n",[143],"7b3706c6-6771-432f-8ffd-223741fc35fd","crypto.ts","1f79b9ee-6363-11f1-87ba-1607ee4eb77e",14,["D",1780941295490],"/**\n * Helper to encrypt the OTP using AES-GCM and a shared secret.\n */\nexport async function encryptOtp(text: string, token: string): Promise<{ encryptedHex: string, ivHex: string }> {\n // 1. Hash the token to create a robust 256-bit key\n const hash = await crypto.subtle.digest(\"SHA-256\", new TextEncoder().encode(token));\n const key = await crypto.subtle.importKey(\"raw\", hash, \"AES-GCM\", false, [\"encrypt\"]);\n\n // 2. Generate a random IV\n const iv = crypto.getRandomValues(new Uint8Array(12));\n\n // 3. Encrypt the text\n const encryptedBuf = await crypto.subtle.encrypt({ name: \"AES-GCM\", iv }, key, new TextEncoder().encode(text));\n\n // 4. Convert buffers to hex strings for safe storage in SQLite\n const toHex = (buf: ArrayBuffer) => Array.from(new Uint8Array(buf))\n .map(b => b.toString(16).padStart(2, '0'))\n .join('');\n\n return {\n encryptedHex: toHex(encryptedBuf),\n ivHex: toHex(iv.buffer)\n };\n}",[152],"a98d86b3-e120-40d4-86a4-e9187144679c","api.ts",4,["D",1780528641564],"http","// HTTP val: returns the latest non-expired OTP to the browser extension.\n// Learn more: https://docs.val.town/vals/http/\nimport { getLatestOtp } from \"./db.ts\";\n\n// When ANY CORS header is set, Val Town stops adding its defaults — so we set\n// the full set ourselves here.\nconst CORS_HEADERS: Record = {\n \"Access-Control-Allow-Origin\": \"*\",\n \"Access-Control-Allow-Methods\": \"GET, OPTIONS\",\n \"Access-Control-Allow-Headers\": \"Content-Type, Authorization, X-Auth-Token\",\n \"Access-Control-Max-Age\": \"86400\",\n};\n\nfunction json(body: unknown, status = 200): Response {\n return new Response(JSON.stringify(body), {\n status,\n headers: { \"Content-Type\": \"application/json\", ...CORS_HEADERS },\n });\n}\n\nexport default async function (req: Request): Promise {\n // Preflight\n if (req.method === \"OPTIONS\") {\n return new Response(null, { status: 204, headers: CORS_HEADERS });\n }\n\n if (req.method !== \"GET\") {\n return json({ error: \"Method not allowed\" }, 405);\n }\n\n // Optional shared-secret gate. If OTP_API_TOKEN is set, callers must supply it\n // via the `X-Auth-Token` header or `?token=` query param. This keeps the\n // public endpoint from leaking codes to anyone who guesses the URL.\n const requiredToken = Deno.env.get(\"OTP_API_TOKEN\");\n if (requiredToken) {\n const url = new URL(req.url);\n const provided = req.headers.get(\"X-Auth-Token\") ??\n req.headers.get(\"Authorization\")?.replace(/^Bearer\\s+/i, \"\") ??\n url.searchParams.get(\"token\");\n if (provided !== requiredToken) {\n return json({ error: \"Unauthorized\" }, 401);\n }\n }\n\n const latest = await getLatestOtp();\n if (!latest) {\n return json({ code: null, message: \"No active OTP\" }, 404);\n }\n\n return json({\n code: latest.code,\n sender: latest.sender,\n subject: latest.subject,\n createdAt: latest.created_at,\n expiresInMs: latest.expires_in_ms,\n });\n}\n",[159],"d9aa20d9-0824-4a29-af6e-87030d67da79","README.md","7b2a6564-5fa2-11f1-842a-1607ee4eb77e",["D",1780528688081],"# OTP Email → Browser Extension Relay\n\nSecurely relays 6-digit OTP codes from forwarded emails to a browser extension.\n\n## How it works\n\n```mermaid\nflowchart LR\n A[OTP email] -->|forward to val address| B[inbox.ts
Email Val]\n B -->|extract 6-digit code| C[(SQLite
otp_codes)]\n D[Browser extension] -->|GET /| E[api.ts
HTTP Val]\n E -->|read latest non-expired| C\n E -->|JSON code + CORS| D\n```\n\n## Files\n\n| File | Type | Role |\n|------|------|------|\n| `inbox.ts` | email | Receives forwarded emails, extracts the first 6-digit code, stores it with a timestamp. |\n| `api.ts` | http | Returns the most recent **non-expired** OTP as JSON, with full CORS headers. |\n| `db.ts` | script | Shared SQLite schema + helpers (`extractOtp`, `saveOtp`, `getLatestOtp`, `purgeExpired`). |\n\n## Setup\n\n1. **Forward OTP emails** to the email val's address (find it in the Val Town UI for `inbox.ts`, or in the `links.email` field). You can set up an auto-forward rule in Gmail/Outlook so codes arrive automatically.\n\n2. **(Recommended) Protect the endpoint.** The HTTP endpoint is public, so anyone with the URL could read your codes. Set an `OTP_API_TOKEN` env var and have your extension send it. When set, callers must provide it via:\n - `X-Auth-Token: ` header, **or**\n - `Authorization: Bearer ` header, **or**\n - `?token=` query param.\n\n 👉 Add OTP_API_TOKEN here: https://www.val.town/x/indenigrate/email-val/environment-variables?key=OTP_API_TOKEN\n\n## Expiry\n\nCodes expire **5 minutes** after they arrive (`TTL_MS` in `db.ts`). Expired rows are purged lazily on every read and write, so the store never serves a stale code.\n\n## API response\n\n`GET /` returns:\n\n```json\n{\n \"code\": \"614209\",\n \"sender\": \"no-reply@bank.example\",\n \"subject\": \"Your verification code\",\n \"createdAt\": 1780528667360,\n \"expiresInMs\": 297315\n}\n```\n\n- `404 { \"code\": null }` — no active OTP.\n- `401 { \"error\": \"Unauthorized\" }` — `OTP_API_TOKEN` is set and the caller didn't supply it.\n\n## Example: fetching from an extension\n\n```js\nconst res = await fetch(\"https://YOUR-ENDPOINT.web.val.run\", {\n headers: { \"X-Auth-Token\": \"your-secret-token\" },\n});\nconst { code } = await res.json();\n```\n",[166],"pulls","branches","forks","envVars",{"_178":147,"_180":63},"connections",{"_178":63,"_179":63},"count","unfilledCount","emptyCount",{"_43":165,"_32":166,"_30":167,"_136":-5,"_41":42,"_40":139,"_137":59,"_38":199,"_13":63,"_33":20,"_35":169,"_24":25,"_140":-5,"_187":200,"_27":201},{"_43":158,"_32":159,"_30":57,"_136":-5,"_41":42,"_40":160,"_137":59,"_38":196,"_13":63,"_33":162,"_35":163,"_24":25,"_140":-5,"_187":197,"_27":198},{"_43":151,"_32":152,"_30":153,"_136":-5,"_41":42,"_40":154,"_137":59,"_38":193,"_13":145,"_33":148,"_35":156,"_24":25,"_140":-5,"_187":194,"_27":195},{"_43":142,"_32":143,"_30":144,"_136":-5,"_41":42,"_40":145,"_137":59,"_38":190,"_13":147,"_33":148,"_35":149,"_24":25,"_140":-5,"_187":191,"_27":192},{"_43":135,"_32":28,"_30":31,"_136":-5,"_41":42,"_40":14,"_137":59,"_38":186,"_13":139,"_33":34,"_35":37,"_24":25,"_140":-5,"_187":188,"_27":189},["D",1780941325718],"children",[],[28],["D",1780528624562],[],[143],["D",1780941295490],[],[152],["D",1780528641564],[],[159],["D",1780528688081],[],[166],["D",1780528612421],["D",1789509672838],{"_99":98,"_107":103},{"_99":98,"_100":101,"_102":103,"_18":55,"_104":105,"_106":25},{"_13":14,"_32":89,"_43":42,"_90":44,"_91":-5,"_92":-5,"_93":-5,"_94":-5,"_95":-5,"_96":45,"_97":98},"ctx",{"_82":-5,"_127":240,"_241":242,"_243":244,"_245":25,"_246":25,"_247":25,"_248":59,"_249":-5,"_250":-7,"_251":-7,"_252":63,"_253":25,"_254":25,"_255":-5,"_256":25,"_257":25,"_258":25,"_259":-5},"ENV",{"_211":212,"_213":214,"_215":89,"_216":217,"_218":219,"_220":221,"_222":223,"_224":225,"_226":227,"_228":229,"_230":231,"_232":233,"_234":235,"_236":237,"_238":239},"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"]

Diff · v15