98 lines
4.0 KiB
TypeScript
98 lines
4.0 KiB
TypeScript
import type { LoaderFunction } from "@remix-run/node";
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import { redirect } from "@remix-run/node";
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import { prisma } from "~/db.server";
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import { redirectWithErrorMessage } from "~/models/message.server";
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import { authenticator } from "~/services/auth.server";
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import { setLastAuthMethodHeader } from "~/services/lastAuthMethod.server";
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import { commitSession, getUserSession } from "~/services/sessionStorage.server";
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import { commitAuthenticatedSession } from "~/services/sessionDuration.server";
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import { trackAndClearReferralSource } from "~/services/referralSource.server";
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import { appendRedirectTo, ssoRedirectFromAuthError } from "~/services/ssoAutoDiscovery.server";
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import type { AuthUser } from "~/services/authUser";
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import { redirectCookie } from "./auth.google";
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import { sanitizeRedirectPath } from "~/utils";
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export let loader: LoaderFunction = async ({ request }) => {
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const cookie = request.headers.get("Cookie");
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const redirectValue = await redirectCookie.parse(cookie);
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const redirectTo = sanitizeRedirectPath(redirectValue);
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// The SSO auto-discovery gate runs inside the strategy's verify
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// callback (before any account write), so an SSO-enforced domain
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// throws out here instead of linking the Google identity. remix-auth
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// surfaces its own OAuth redirects by throwing Responses — pass those
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// through; an SsoRequiredError becomes the SSO redirect.
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let auth: AuthUser;
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try {
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// throwOnError so a verify-callback throw surfaces as an
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// AuthorizationError (carrying the SsoRequiredError as `cause`)
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// rather than being flattened into a bare 401 Response — otherwise
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// the SSO-enforced redirect below is never reached.
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auth = await authenticator.authenticate("google", request, { throwOnError: true });
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} catch (thrown) {
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if (thrown instanceof Response) throw thrown;
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const ssoRedirect = ssoRedirectFromAuthError(thrown);
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if (ssoRedirect) {
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return redirect(appendRedirectTo(ssoRedirect, redirectTo));
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}
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// Without `failureRedirect`, remix-auth no longer flashes the verify error
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// onto the session before throwing — so flash it here under the same
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// `auth:error` key the /login loader reads. Otherwise an allow-list
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// rejection or provider error silently re-renders the login form with no
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// indication of what went wrong.
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const session = await getUserSession(request);
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session.flash("auth:error", {
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message: thrown instanceof Error ? thrown.message : "Failed to sign in with Google.",
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});
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return redirect("/login", {
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headers: { "Set-Cookie": await commitSession(session) },
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});
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}
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const session = await getUserSession(request);
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const userRecord = await prisma.user.findFirst({
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where: {
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id: auth.userId,
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},
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select: {
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id: true,
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mfaEnabledAt: true,
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},
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});
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if (!userRecord) {
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return redirectWithErrorMessage(
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"/login",
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request,
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"Could not find your account. Please contact support."
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);
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}
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if (userRecord.mfaEnabledAt) {
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session.set("pending-mfa-user-id", userRecord.id);
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session.set("pending-mfa-redirect-to", redirectTo);
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// Clear any `pending-sso` left over from an aborted SSO login in the same
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// browser session — otherwise `completeLogin` would stamp an SSO marker
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// onto this Google session and `revalidateSsoSession` would later validate
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// it against an IdP the user never authenticated through.
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session.unset("pending-sso");
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const headers = new Headers();
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headers.append("Set-Cookie", await commitSession(session));
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headers.append("Set-Cookie", await setLastAuthMethodHeader("google"));
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return redirect("/login/mfa", { headers });
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}
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session.set(authenticator.sessionKey, auth);
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const headers = new Headers();
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headers.append("Set-Cookie", await commitAuthenticatedSession(session, auth.userId));
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headers.append("Set-Cookie", await setLastAuthMethodHeader("google"));
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await trackAndClearReferralSource(request, auth.userId, headers);
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return redirect(redirectTo, { headers });
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};
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