adilallo
121 lines
3.4 KiB
TypeScript
121 lines
3.4 KiB
TypeScript
import { NextRequest, NextResponse } from "next/server";
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import { prisma } from "../../../../../lib/server/db";
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import {
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getSessionPepper,
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isDatabaseConfigured,
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} from "../../../../../lib/server/env";
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import {
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hashSessionToken,
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newSessionToken,
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} from "../../../../../lib/server/hash";
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import { sendMagicLinkEmail } from "../../../../../lib/server/mail";
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import { rateLimitKey } from "../../../../../lib/server/rateLimit";
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import { dbUnavailable } from "../../../../../lib/server/responses";
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import { logger } from "../../../../../lib/logger";
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import { safeInternalPath } from "../../../../../lib/safeInternalPath";
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const MAGIC_LINK_TTL_MS = 15 * 60 * 1000;
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const EMAIL_MIN_INTERVAL_MS = 60 * 1000;
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const IP_MIN_INTERVAL_MS = 20 * 1000;
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function normalizeEmail(raw: unknown): string | null {
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if (typeof raw !== "string") return null;
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const email = raw.trim().toLowerCase();
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if (!/^[^\s@]+@[^\s@]+\.[^\s@]+$/.test(email)) return null;
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return email;
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}
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function readNextPath(body: unknown): string | null {
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if (!body || typeof body !== "object" || !("next" in body)) return null;
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const n = (body as { next: unknown }).next;
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if (typeof n !== "string") return null;
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return safeInternalPath(n);
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}
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export async function POST(request: NextRequest) {
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if (!isDatabaseConfigured()) {
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return dbUnavailable();
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}
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let body: unknown;
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try {
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body = await request.json();
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} catch {
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return NextResponse.json({ error: "Invalid JSON" }, { status: 400 });
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}
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const email = normalizeEmail(
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body && typeof body === "object" && "email" in body
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? (body as { email: unknown }).email
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: null,
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);
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if (!email) {
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return NextResponse.json(
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{ error: "Valid email required" },
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{ status: 400 },
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);
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}
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const ip =
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request.headers.get("x-forwarded-for")?.split(",")[0]?.trim() ??
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request.headers.get("x-real-ip") ??
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"unknown";
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const rlEmail = rateLimitKey(`magic-email:${email}`, EMAIL_MIN_INTERVAL_MS);
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if (rlEmail.ok === false) {
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return NextResponse.json(
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{ error: "Too many requests", retryAfterMs: rlEmail.retryAfterMs },
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{ status: 429 },
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);
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}
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const rlIp = rateLimitKey(`magic-ip:${ip}`, IP_MIN_INTERVAL_MS);
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if (rlIp.ok === false) {
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return NextResponse.json(
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{ error: "Too many requests", retryAfterMs: rlIp.retryAfterMs },
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{ status: 429 },
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);
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}
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let pepper: string;
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try {
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pepper = getSessionPepper();
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} catch {
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return NextResponse.json(
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{ error: "Server misconfiguration" },
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{ status: 500 },
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);
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}
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const token = newSessionToken();
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const tokenHash = hashSessionToken(token, pepper);
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const expiresAt = new Date(Date.now() + MAGIC_LINK_TTL_MS);
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const nextPath = readNextPath(body);
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await prisma.magicLinkToken.deleteMany({ where: { email } });
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await prisma.magicLinkToken.create({
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data: {
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email,
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tokenHash,
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expiresAt,
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nextPath: nextPath ?? undefined,
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},
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});
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const origin = request.nextUrl.origin;
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const verifyUrl = `${origin}/api/auth/magic-link/verify?token=${encodeURIComponent(token)}`;
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try {
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await sendMagicLinkEmail(email, verifyUrl);
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} catch (err) {
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logger.error("sendMagicLinkEmail failed:", err);
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await prisma.magicLinkToken.deleteMany({ where: { email } });
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return NextResponse.json(
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{ error: "Could not send email" },
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{ status: 502 },
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);
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}
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return NextResponse.json({ ok: true });
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}
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