| 1 | import { Link, data, redirect } from "react-router"; |
| 2 | |
| 3 | import { ssoAddresses } from "@g1t/contracts"; |
| 4 | |
| 5 | import type { Route } from "./+types/auth-sso"; |
| 6 | import { AuthCard } from "../components/auth-card"; |
| 7 | import { cookie } from "../lib/github"; |
| 8 | import { page } from "../lib/meta"; |
| 9 | import { SSO_STATE_COOKIE } from "../lib/sso"; |
| 10 | import { sso } from "../lib/sso.server"; |
| 11 | import { nextPath, requireUser, sessionTokenOf } from "../lib/session.server"; |
| 12 | |
| 13 | export function meta({ params, ...args }: Route.MetaArgs) { |
| 14 | return page(args, { title: `Single sign-on · ${params.owner} · g1t` }); |
| 15 | } |
| 16 | |
| 17 | /** |
| 18 | * Sends the signed-in person to a workspace's identity provider. Signed |
| 19 | * out, they sign in to g1t first and come back here. The state the |
| 20 | * provider will send back is kept in a short-lived cookie (OpenID Connect |
| 21 | * and OAuth 2.0); a SAML request's id binds its answer instead. |
| 22 | */ |
| 23 | export async function loader({ request, params, context }: Route.LoaderArgs) { |
| 24 | const user = requireUser(context, request); |
| 25 | const slug = params.owner.toLowerCase(); |
| 26 | const token = sessionTokenOf(request); |
| 27 | if (!token) { |
| 28 | return data({ slug, error: "Single sign-on is for people signed in on this site, not for access tokens." }, { status: 403 }); |
| 29 | } |
| 30 | const summary = await sso.summary(slug); |
| 31 | if (!summary.enabled) return data({ slug, error: `${slug} has not set up single sign-on.` }, { status: 404 }); |
| 32 | const addresses = ssoAddresses(new URL(request.url).origin, slug); |
| 33 | const started = await sso.start({ |
| 34 | user, |
| 35 | session_token: token, |
| 36 | slug, |
| 37 | redirect_uri: summary.protocol === "saml" ? addresses.acsUrl : addresses.callbackUrl, |
| 38 | entity_id: addresses.entityId, |
| 39 | next: nextPath(request), |
| 40 | }); |
| 41 | if (!started.ok) return { slug, error: started.error.message }; |
| 42 | const headers = started.value.state ? { "set-cookie": cookie(SSO_STATE_COOKIE, started.value.state, 600) } : undefined; |
| 43 | throw redirect(started.value.url, { headers }); |
| 44 | } |
| 45 | |
| 46 | export default function SsoStart({ loaderData }: Route.ComponentProps) { |
| 47 | return <SsoProblem slug={loaderData.slug} error={loaderData.error} />; |
| 48 | } |
| 49 | |
| 50 | /** What a single sign-on that did not work says, with the ways on. */ |
| 51 | export function SsoProblem({ slug, error }: { slug: string; error: string }) { |
| 52 | return ( |
| 53 | <AuthCard |
| 54 | title="Single sign-on" |
| 55 | subtitle={`Signing in through ${slug}'s identity provider`} |
| 56 | footer={ |
| 57 | <Link to="/" className="text-fg underline underline-offset-4"> |
| 58 | Back to g1t |
| 59 | </Link> |
| 60 | } |
| 61 | > |
| 62 | <p className="text-sm text-danger" role="alert"> |
| 63 | {error} |
| 64 | </p> |
| 65 | <p className="mt-6 text-sm"> |
| 66 | <Link to={`/auth/sso/${slug}`} className="font-medium text-accent underline underline-offset-4"> |
| 67 | Try again |
| 68 | </Link> |
| 69 | </p> |
| 70 | </AuthCard> |
| 71 | ); |
| 72 | } |