feat: complete v0.5 operations foundation

app/api/auth/login/route.ts

@@ -1,3 +1,3 @@
-import { NextResponse } from "next/server"; import bcrypt from "bcryptjs"; import { db } from "@/lib/db"; import { createSession } from "@/lib/auth"; import { externalUrl } from "@/lib/http";
-export async function POST(req: Request) { const form = await req.formData(); const username=String(form.get("username")||""); const password=String(form.get("password")||""); const user=db.prepare("SELECT id,username,password_hash,role,disabled FROM users WHERE username=?").get(username) as any;
-  if (!user || user.disabled || !(await bcrypt.compare(password,user.password_hash))) return NextResponse.redirect(externalUrl(req,"/login?error=invalid")); await createSession({id:user.id,username:user.username,role:user.role}); return NextResponse.redirect(externalUrl(req,"/dashboard")); }
+import { NextResponse } from "next/server"; import bcrypt from "bcryptjs"; import { db } from "@/lib/db"; import { createSession } from "@/lib/auth"; import { externalUrl } from "@/lib/http"; import { withinRateLimit } from "@/lib/rate-limit"; import { clientIp, requireSameOrigin } from "@/lib/security";
+export async function POST(req: Request) { try { requireSameOrigin(req); if (!withinRateLimit(`login:${clientIp(req)}`, 8, 15 * 60_000)) return NextResponse.redirect(externalUrl(req,"/login?error=rate-limited")); const form = await req.formData(); const username=String(form.get("username")||""); const password=String(form.get("password")||""); const user=db.prepare("SELECT id,username,password_hash,role,disabled FROM users WHERE username=?").get(username) as any;
+  if (!user || user.disabled || !(await bcrypt.compare(password,user.password_hash))) return NextResponse.redirect(externalUrl(req,"/login?error=invalid")); await createSession({id:user.id,username:user.username,role:user.role}); return NextResponse.redirect(externalUrl(req,"/dashboard")); } catch { return NextResponse.redirect(externalUrl(req,"/login?error=invalid")); } }

app/api/auth/logout/route.ts

@@ -1 +1 @@
-import { NextResponse } from "next/server"; import { clearSession } from "@/lib/auth"; import { externalUrl } from "@/lib/http"; export async function POST(req:Request){await clearSession();return NextResponse.redirect(externalUrl(req,"/"));}
+import { NextResponse } from "next/server"; import { clearSession } from "@/lib/auth"; import { externalUrl } from "@/lib/http"; import { requireSameOrigin } from "@/lib/security"; export async function POST(req:Request){try { requireSameOrigin(req); await clearSession(); } catch {} return NextResponse.redirect(externalUrl(req,"/"));}

app/api/auth/password/route.ts

@@ -3,10 +3,11 @@ import { NextResponse } from "next/server";
 import { requireUser } from "@/lib/auth";
 import { db } from "@/lib/db";
 import { externalUrl } from "@/lib/http";
+import { requireSameOrigin } from "@/lib/security";
 
 export async function POST(req: Request) {
   try {
-    const user = await requireUser(); const form = await req.formData();
+    requireSameOrigin(req); const user = await requireUser(); const form = await req.formData();
     const currentPassword = String(form.get("currentPassword") || ""); const newPassword = String(form.get("newPassword") || ""); const confirmPassword = String(form.get("confirmPassword") || "");
     if (newPassword.length < 10) throw new Error("新密碼至少需要 10 個字元");
     if (newPassword !== confirmPassword) throw new Error("兩次新密碼不一致");

app/api/auth/register/route.ts

@@ -1,5 +1,6 @@
-import { NextResponse } from "next/server"; import bcrypt from "bcryptjs"; import { db } from "@/lib/db"; import { createSession } from "@/lib/auth"; import { externalUrl } from "@/lib/http";
+import { NextResponse } from "next/server"; import bcrypt from "bcryptjs"; import { db } from "@/lib/db"; import { createSession } from "@/lib/auth"; import { externalUrl } from "@/lib/http"; import { clientIp, requireSameOrigin } from "@/lib/security"; import { withinRateLimit } from "@/lib/rate-limit";
 export async function POST(req: Request) { const form = await req.formData(); const username = String(form.get("username") || "").trim(); const password = String(form.get("password") || "");
+  try { requireSameOrigin(req); } catch { return NextResponse.redirect(externalUrl(req,"/register?error=invalid")); } if (!withinRateLimit(`register:${clientIp(req)}`, 5, 60 * 60_000)) return NextResponse.redirect(externalUrl(req,"/register?error=rate-limited"));
   if (!/^[A-Za-z0-9_-]{3,32}$/.test(username) || password.length < 10) return NextResponse.redirect(externalUrl(req,"/register?error=invalid"));
   try { const out = db.prepare("INSERT INTO users(username,password_hash) VALUES (?,?)").run(username, await bcrypt.hash(password, 12)); await createSession({ id: Number(out.lastInsertRowid), username, role: "user" }); return NextResponse.redirect(externalUrl(req,"/dashboard")); } catch { return NextResponse.redirect(externalUrl(req,"/register?error=taken")); }
 }