81 lines
2.9 KiB
TypeScript
81 lines
2.9 KiB
TypeScript
import { NextRequest, NextResponse } from 'next/server';
|
|
import { cookies } from 'next/headers';
|
|
import { logger } from '@/lib/logger';
|
|
import { decryptPayload } from '@/lib/auth/crypto';
|
|
import { exchangeCodeForTokens } from '@/lib/oauth/token-exchange';
|
|
import { refreshTokenCookieName } from '@/lib/oauth/tokens';
|
|
import { getCookieOptions } from '@/lib/oauth/cookie-config';
|
|
|
|
const SSO_PENDING_COOKIE = 'sso_pending';
|
|
const SSO_PENDING_MAX_AGE_MS = 5 * 60 * 1000; // 5 minutes
|
|
|
|
export async function POST(request: NextRequest) {
|
|
const cookieStore = await cookies();
|
|
|
|
try {
|
|
const { code, state } = await request.json();
|
|
|
|
if (!code || !state) {
|
|
return NextResponse.json({ error: 'Missing code or state' }, { status: 400 });
|
|
}
|
|
|
|
// Read and decrypt the pending SSO cookie
|
|
const pendingCookie = cookieStore.get(SSO_PENDING_COOKIE)?.value;
|
|
if (!pendingCookie) {
|
|
logger.warn('SSO complete: no pending cookie found');
|
|
return NextResponse.json({ error: 'No pending SSO session. Please start the login flow again.' }, { status: 400 });
|
|
}
|
|
|
|
const pending = decryptPayload(pendingCookie);
|
|
if (!pending) {
|
|
cookieStore.delete(SSO_PENDING_COOKIE);
|
|
return NextResponse.json({ error: 'Invalid SSO session' }, { status: 400 });
|
|
}
|
|
|
|
// Validate state
|
|
if (pending.state !== state) {
|
|
logger.warn('SSO complete: state mismatch');
|
|
cookieStore.delete(SSO_PENDING_COOKIE);
|
|
return NextResponse.json({ error: 'State mismatch' }, { status: 400 });
|
|
}
|
|
|
|
// Validate TTL
|
|
const createdAt = pending.created_at as number;
|
|
if (!createdAt || Date.now() - createdAt > SSO_PENDING_MAX_AGE_MS) {
|
|
logger.warn('SSO complete: pending session expired');
|
|
cookieStore.delete(SSO_PENDING_COOKIE);
|
|
return NextResponse.json({ error: 'SSO session expired. Please try again.' }, { status: 400 });
|
|
}
|
|
|
|
const codeVerifier = pending.code_verifier as string;
|
|
const redirectUri = pending.redirect_uri as string;
|
|
|
|
if (!codeVerifier || !redirectUri) {
|
|
cookieStore.delete(SSO_PENDING_COOKIE);
|
|
return NextResponse.json({ error: 'Invalid SSO session data' }, { status: 400 });
|
|
}
|
|
|
|
// Exchange code for tokens
|
|
const tokens = await exchangeCodeForTokens(code, codeVerifier, redirectUri);
|
|
|
|
// Store refresh token
|
|
if (tokens.refresh_token) {
|
|
const cookieName = refreshTokenCookieName(0);
|
|
cookieStore.set(cookieName, tokens.refresh_token, getCookieOptions());
|
|
}
|
|
|
|
// Delete pending cookie
|
|
cookieStore.delete(SSO_PENDING_COOKIE);
|
|
|
|
return NextResponse.json({
|
|
access_token: tokens.access_token,
|
|
expires_in: tokens.expires_in,
|
|
});
|
|
} catch (error) {
|
|
// Clean up pending cookie on any error
|
|
cookieStore.delete(SSO_PENDING_COOKIE);
|
|
logger.error('SSO complete error', { error: error instanceof Error ? error.message : 'Unknown error' });
|
|
return NextResponse.json({ error: 'Token exchange failed' }, { status: 401 });
|
|
}
|
|
}
|