feat: add secure auth, admin and postgres persistence

server/app.js

@@ -0,0 +1,57 @@
+import express from "express";
+import path from "node:path";
+import crypto from "node:crypto";
+import bcrypt from "bcryptjs";
+import { fetchPageText } from "./fetch-page.js";
+import { runPrefill } from "./prefill.js";
+import { parseAlog } from "./alog.js";
+import { listAlogLibrary, readAlogFromLibrary } from "./alog-library.js";
+
+const hash = (value) => crypto.createHash("sha256").update(value).digest("hex");
+const token = () => crypto.randomBytes(32).toString("base64url");
+const ADMIN_EMAIL = "[email protected]";
+const emailOf = (value) => String(value || "").trim().toLowerCase();
+const PASSWORD_OK = (value) => typeof value === "string" && value.length >= 12 && value.length <= 256;
+
+/** Creates the HTTP app separately from listening, so tests can use an isolated database. */
+export function createApp({ db, root, env = process.env } = {}) {
+  const app = express();
+  const production = env.NODE_ENV === "production";
+  const cookieSecure = env.COOKIE_SECURE ? env.COOKIE_SECURE === "true" : production;
+  const origin = env.APP_ORIGIN || (production ? "https://roast.srmr.xyz" : "");
+  const buckets = new Map();
+  const rateLimit = (name, max, windowMs) => (req, res, next) => {
+    const key = `${name}:${req.ip}`; const now = Date.now(); const b = buckets.get(key) || { count: 0, reset: now + windowMs };
+    if (now > b.reset) Object.assign(b, { count: 0, reset: now + windowMs });
+    b.count++; buckets.set(key, b); res.set("RateLimit-Limit", String(max));
+    if (b.count > max) return res.status(429).json({ ok: false, code: "rate_limited" }); next();
+  };
+  app.disable("x-powered-by");
+  app.set("trust proxy", 1);
+  app.use((req, res, next) => { res.set({ "X-Content-Type-Options":"nosniff", "X-Frame-Options":"DENY", "Referrer-Policy":"strict-origin-when-cross-origin", "Permissions-Policy":"camera=(), microphone=(), geolocation=()", "Cross-Origin-Opener-Policy":"same-origin", "Content-Security-Policy":"default-src 'self'; base-uri 'self'; form-action 'self'; frame-ancestors 'none'; object-src 'none'; connect-src 'self'; style-src 'self' 'unsafe-inline'; img-src 'self' data:" }); next(); });
+  app.use(express.json({ limit: "1mb" }));
+  const cookie = (req, name) => Object.fromEntries((req.headers.cookie || "").split(";").map(x => x.trim().split("=")).filter(x => x[0]))[name];
+  const setSessionCookie = (res, value, maxAge, csrfToken = "") => { res.cookie("rp_session", value, { httpOnly:true, secure:cookieSecure, sameSite:"lax", path:"/", maxAge }); res.cookie("rp_csrf", csrfToken, { httpOnly:false, secure:cookieSecure, sameSite:"lax", path:"/", maxAge }); }; 
+  async function session(req) { const raw = cookie(req, "rp_session"); if (!raw) return null; const r = await db.query("SELECT s.csrf_hash,u.id,u.email,u.role FROM sessions s JOIN users u ON u.id=s.user_id WHERE s.token_hash=$1 AND s.expires_at>now()", [hash(raw)]); return r.rows[0] || null; }
+  async function requireAuth(req,res,next) { try { req.user = await session(req); if (!req.user) return res.status(401).json({ok:false,code:"unauthorized"}); next(); } catch (e) { next(e); } }
+  const csrf = (req,res,next) => { if (origin && req.get("origin") && req.get("origin") !== origin) return res.status(403).json({ok:false,code:"bad_origin"}); const value=req.get("x-csrf-token"); if (!value || value !== cookie(req, "rp_csrf") || !req.user || !crypto.timingSafeEqual(Buffer.from(hash(value)), Buffer.from(req.user.csrf_hash))) return res.status(403).json({ok:false,code:"csrf_failed"}); next(); };
+  const admin = (req,res,next) => req.user.role === "admin" ? next() : res.status(403).json({ok:false,code:"forbidden"});
+  const createSession = async (user) => { const raw=token(), csrfToken=token(); await db.query("INSERT INTO sessions(token_hash,user_id,csrf_hash,expires_at) VALUES($1,$2,$3,now()+interval '14 days')",[hash(raw),user.id,hash(csrfToken)]); return {raw,csrfToken}; };
+  app.post("/api/auth/signup", rateLimit("signup", 8, 60_000), async (req,res,next) => { try { const email=emailOf(req.body.email), password=req.body.password; if (!/^\S+@\S+\.\S+$/.test(email) || !PASSWORD_OK(password)) return res.status(400).json({ok:false,code:"invalid_credentials",error:"Use a valid email and a password of at least 12 characters."}); const setting=await db.query("SELECT value FROM app_settings WHERE key='signup_enabled'"); if (setting.rows[0]?.value !== "true") return res.status(403).json({ok:false,code:"signup_disabled"}); const password_hash=await bcrypt.hash(password, 12); const user=(await db.query("INSERT INTO users(email,password_hash) VALUES($1,$2) RETURNING id,email,role",[email,password_hash])).rows[0]; const s=await createSession(user); setSessionCookie(res,s.raw,14*864e5,s.csrfToken); res.status(201).json({ok:true,user:{email:user.email,role:user.role},csrfToken:s.csrfToken}); } catch(e) { if(e.code === "23505") return res.status(409).json({ok:false,code:"email_exists"}); next(e); } });
+  app.post("/api/auth/bootstrap", rateLimit("bootstrap", 4, 60_000), async(req,res,next)=>{ try { const bootstrap=String(req.body.setupToken||""); if (!env.BOOTSTRAP_SETUP_TOKEN || bootstrap.length !== env.BOOTSTRAP_SETUP_TOKEN.length || !crypto.timingSafeEqual(Buffer.from(bootstrap),Buffer.from(env.BOOTSTRAP_SETUP_TOKEN))) return res.status(403).json({ok:false,code:"invalid_setup_token"}); if (emailOf(req.body.email)!==ADMIN_EMAIL || !PASSWORD_OK(req.body.password)) return res.status(400).json({ok:false,code:"invalid_credentials"}); const exists=await db.query("SELECT 1 FROM users WHERE email=$1",[ADMIN_EMAIL]); if(exists.rowCount) return res.status(409).json({ok:false,code:"bootstrap_used"}); const user=(await db.query("INSERT INTO users(email,password_hash,role) VALUES($1,$2,'admin') RETURNING id,email,role",[ADMIN_EMAIL,await bcrypt.hash(req.body.password,12)])).rows[0]; const s=await createSession(user); setSessionCookie(res,s.raw,14*864e5,s.csrfToken); res.status(201).json({ok:true,user:{email:user.email,role:user.role},csrfToken:s.csrfToken}); } catch(e){next(e);} });
+  app.post("/api/auth/login", rateLimit("login", 10, 60_000), async(req,res,next)=>{ try { const user=(await db.query("SELECT id,email,role,password_hash FROM users WHERE email=$1",[emailOf(req.body.email)])).rows[0]; if(!user || !(await bcrypt.compare(String(req.body.password||""),user.password_hash))) return res.status(401).json({ok:false,code:"invalid_credentials"}); const s=await createSession(user); setSessionCookie(res,s.raw,14*864e5,s.csrfToken); res.json({ok:true,user:{email:user.email,role:user.role},csrfToken:s.csrfToken}); }catch(e){next(e);} });
+  app.get("/api/auth/me", requireAuth, (req,res)=>res.json({ok:true,user:{id:req.user.id,email:req.user.email,role:req.user.role}}));
+  app.post("/api/auth/logout", requireAuth, csrf, async(req,res,next)=>{try{await db.query("DELETE FROM sessions WHERE token_hash=$1",[hash(cookie(req,"rp_session"))]); setSessionCookie(res,"",0,"");res.json({ok:true});}catch(e){next(e)}});
+  app.get("/api/plans", requireAuth, async(req,res,next)=>{try{res.json({ok:true,plans:(await db.query("SELECT id,plan,created_at,updated_at FROM roast_plans WHERE user_id=$1 ORDER BY updated_at DESC",[req.user.id])).rows});}catch(e){next(e)}});
+  app.post("/api/plans", requireAuth, csrf, async(req,res,next)=>{try{if(!req.body.plan || typeof req.body.plan!=="object") return res.status(400).json({ok:false,code:"bad_plan"}); const p=(await db.query("INSERT INTO roast_plans(user_id,plan) VALUES($1,$2) RETURNING id,plan,created_at,updated_at",[req.user.id,req.body.plan])).rows[0];res.status(201).json({ok:true,plan:p});}catch(e){next(e)}});
+  app.put("/api/plans/:id", requireAuth, csrf, async(req,res,next)=>{try{const r=await db.query("UPDATE roast_plans SET plan=$1,updated_at=now() WHERE id=$2 AND user_id=$3 RETURNING id,plan,updated_at",[req.body.plan,req.params.id,req.user.id]); if(!r.rowCount)return res.status(404).json({ok:false,code:"not_found"});res.json({ok:true,plan:r.rows[0]});}catch(e){next(e)}});
+  app.get("/api/admin/users", requireAuth, admin, async(req,res,next)=>{try{res.json({ok:true,signupEnabled:(await db.query("SELECT value FROM app_settings WHERE key='signup_enabled'")).rows[0]?.value==="true",users:(await db.query("SELECT u.id,u.email,u.role,u.created_at,count(p.id)::int AS plan_count FROM users u LEFT JOIN roast_plans p ON p.user_id=u.id GROUP BY u.id ORDER BY u.created_at")).rows});}catch(e){next(e)}});
+  app.get("/api/admin/plans", requireAuth, admin, async(req,res,next)=>{try{res.json({ok:true,plans:(await db.query("SELECT p.id,p.plan,p.updated_at,u.email FROM roast_plans p JOIN users u ON u.id=p.user_id ORDER BY p.updated_at DESC")).rows});}catch(e){next(e)}});
+  app.put("/api/admin/signup-enabled", requireAuth, csrf, admin, async(req,res,next)=>{try{if(typeof req.body.enabled!=="boolean")return res.status(400).json({ok:false,code:"bad_request"});await db.query("UPDATE app_settings SET value=$1 WHERE key='signup_enabled'",[String(req.body.enabled)]);res.json({ok:true});}catch(e){next(e)}});
+  // Existing integrations remain authenticated but CSRF-protected for writes.
+  app.post("/api/prefill", requireAuth, csrf, async(req,res)=>{const url=typeof req.body?.url==="string"?req.body.url.trim():"";if(!url)return res.status(400).json({ok:false,code:"bad_url",error:"Missing url."});try{const result=await runPrefill(await fetchPageText(url));res.json({ok:true,...result});}catch(err){const code=err.code??"prefill_failed";res.status(code==="fetch_timeout"?504:code==="bad_url"?400:code==="no_model"?503:422).json({ok:false,code,error:err.message});}});
+  app.post("/api/alog", requireAuth, csrf, (req,res)=>{try{if(typeof req.body?.content!=="string"||!req.body.content.trim())return res.status(400).json({ok:false,code:"bad_request"});res.json({ok:true,...parseAlog(req.body.content,req.body.filename??"upload.alog")});}catch(err){res.status(422).json({ok:false,code:"unparseable_alog",error:err.message});}});
+  app.get("/api/alog/library",requireAuth,async(_q,res)=>res.json({ok:true,files:await listAlogLibrary()})); app.get("/api/alog/library/:filename",requireAuth,async(req,res)=>{try{res.json({ok:true,...await readAlogFromLibrary(req.params.filename)});}catch(e){res.status(e.code==="not_found"?404:400).json({ok:false,code:e.code,error:e.message});}});
+  app.get("/",(_q,res)=>res.sendFile(path.join(root,"public","landing.html"))); app.get("/app",requireAuth,(_q,res)=>res.sendFile(path.join(root,"public","index.html"))); app.get("/admin",requireAuth,admin,(_q,res)=>res.sendFile(path.join(root,"public","admin.html"))); app.use(express.static(path.join(root,"public"))); app.use("/shared",express.static(path.join(root,"shared")));
+  app.use((err,_req,res,_next)=>{console.error(err);res.status(500).json({ok:false,code:"internal_error"});}); return app;
+}