Pick any line to see why it is the way it is: the commit, the pull request and issue it came from, and what the agent was thinking.
| Initial g1t: services, event bus, intents and attempts | 1 | import { |
| 2 | type MiddlewareFunction, | |
| 3 | type RouterContextProvider, | |
| 4 | createContext, | |
| 5 | data, | |
| 6 | redirect, | |
| 7 | } from "react-router"; | |
| 8 | ||
| Agents as a team: lifecycle, merge queue, billing and a new shell | 9 | import { type Result, type Role, type User, type Viewer, httpStatus } from "@g1t/contracts"; |
| Initial g1t: services, event bus, intents and attempts | 10 | |
| Team plan, an open-source pool, monthly trials and honest metering; the sidebar for everyone; a workspace that stays put | 11 | import { safeNext } from "./next"; |
| API and MCP server, Rust identity service, registration, site redesign | 12 | import { identity } from "./services.server"; |
| 13 | ||
| Initial g1t: services, event bus, intents and attempts | 14 | const SESSION_COOKIE = "g1t_session"; |
| 15 | const SESSION_TTL_SECONDS = 30 * 24 * 60 * 60; | |
| 16 | ||
| 17 | const viewerContext = createContext<Viewer>(null); | |
| 18 | ||
| 19 | function sessionToken(request: Request): string | null { | |
| 20 | const cookies = request.headers.get("cookie") ?? ""; | |
| 21 | const match = new RegExp(`(?:^|; )${SESSION_COOKIE}=([0-9a-f]{64})`).exec(cookies); | |
| 22 | return match ? match[1] : null; | |
| 23 | } | |
| 24 | ||
| 25 | function sessionCookie(value: string, maxAge: number): string { | |
| 26 | return `${SESSION_COOKIE}=${value}; Path=/; HttpOnly; Secure; SameSite=Lax; Max-Age=${maxAge}`; | |
| 27 | } | |
| 28 | ||
| Agents as a team: lifecycle, merge queue, billing and a new shell | 29 | /** Pages a signed-in person can use before they have a workspace. */ |
| Invite-only launch: sign in with GitHub, repository access and lifecycle, many emails, a new look | 30 | const BEFORE_WORKSPACE = ["/workspaces/new", "/settings", "/verify", "/logout", "/auth/github", "/auth/github/callback"]; |
| Agents as a team: lifecycle, merge queue, billing and a new shell | 31 | |
| 32 | /** | |
| 33 | * Root middleware: resolves the signed-in user once per request. | |
| 34 | * | |
| 35 | * Everything on g1t lives in a workspace, so a confirmed account with none | |
| 36 | * is sent to create one, from wherever it was going, and returned there | |
| 37 | * afterwards. | |
| 38 | */ | |
| Initial g1t: services, event bus, intents and attempts | 39 | export const viewerMiddleware: MiddlewareFunction<Response> = async ({ |
| 40 | request, | |
| 41 | context, | |
| 42 | }) => { | |
| 43 | const token = sessionToken(request); | |
| Agents as a team: lifecycle, merge queue, billing and a new shell | 44 | if (!token) return; |
| 45 | const viewer = await identity.userForSession(token); | |
| 46 | context.set(viewerContext, viewer); | |
| 47 | ||
| 48 | const { pathname, search } = new URL(request.url); | |
| 49 | if ( | |
| 50 | request.method === "GET" && | |
| 51 | viewer?.verified && | |
| 52 | (viewer.workspaces ?? []).length === 0 && | |
| Invite-only launch: sign in with GitHub, repository access and lifecycle, many emails, a new look | 53 | // Someone a repository is shared with can use it without a workspace. |
| 54 | (viewer.grants ?? []).length === 0 && | |
| Agents as a team: lifecycle, merge queue, billing and a new shell | 55 | !BEFORE_WORKSPACE.includes(pathname) && |
| status.g1t.sh with incident management, invites that land you in the workspace, settings as pages, usage without quotas | 56 | !pathname.startsWith("/settings/") && |
| Invite-only launch: sign in with GitHub, repository access and lifecycle, many emails, a new look | 57 | // An invite to a workspace is how someone without one gets one, and an |
| 58 | // invitation to a repository is answered before anything else. | |
| 59 | !pathname.startsWith("/invite/") && | |
| 60 | !/^\/[^/]+\/[^/]+\/invitations\/?$/.test(pathname) && | |
| Agents as a team: lifecycle, merge queue, billing and a new shell | 61 | !pathname.endsWith(".data") |
| 62 | ) { | |
| 63 | const next = pathname === "/" ? "" : `?next=${encodeURIComponent(pathname + search)}`; | |
| 64 | throw redirect(`/workspaces/new${next}`); | |
| Initial g1t: services, event bus, intents and attempts | 65 | } |
| 66 | }; | |
| 67 | ||
| 68 | type Context = Readonly<RouterContextProvider>; | |
| 69 | ||
| 70 | export function getViewer(context: Context): Viewer { | |
| 71 | return context.get(viewerContext); | |
| 72 | } | |
| 73 | ||
| Agents as a team: lifecycle, merge queue, billing and a new shell | 74 | /** The viewer's role in a workspace, or null if they are not a member. */ |
| 75 | export function roleIn(viewer: Viewer, slug: string): Role | null { | |
| 76 | const wanted = slug.toLowerCase(); | |
| 77 | return ( | |
| 78 | viewer?.workspaces?.find((membership) => membership.slug === wanted)?.role ?? null | |
| 79 | ); | |
| 80 | } | |
| 81 | ||
| Initial g1t: services, event bus, intents and attempts | 82 | export function requireUser(context: Context, request: Request): User { |
| 83 | const viewer = getViewer(context); | |
| 84 | if (!viewer) { | |
| Device sign-in replaces registering and minting tokens over the API | 85 | // Keep the query string: a device sign-in link carries its code there. |
| 86 | const { pathname, search } = new URL(request.url); | |
| 87 | throw redirect(`/login?next=${encodeURIComponent(pathname + search)}`); | |
| Initial g1t: services, event bus, intents and attempts | 88 | } |
| 89 | return viewer; | |
| 90 | } | |
| 91 | ||
| API and MCP server, Rust identity service, registration, site redesign | 92 | /** |
| 93 | * Where to go after signing in. Only same-site paths are honoured, so | |
| 94 | * `next` cannot redirect off g1t. | |
| 95 | */ | |
| 96 | export function nextPath(request: Request): string { | |
| Team plan, an open-source pool, monthly trials and honest metering; the sidebar for everyone; a workspace that stays put | 97 | return safeNext(new URL(request.url).searchParams.get("next")); |
| API and MCP server, Rust identity service, registration, site redesign | 98 | } |
| 99 | ||
| Initial g1t: services, event bus, intents and attempts | 100 | /** `Set-Cookie` value that starts a session. */ |
| 101 | export function startSession(token: string): string { | |
| 102 | return sessionCookie(token, SESSION_TTL_SECONDS); | |
| 103 | } | |
| 104 | ||
| 105 | /** Ends the session and returns the `Set-Cookie` value that clears it. */ | |
| 106 | export async function endSession(request: Request): Promise<string> { | |
| 107 | const token = sessionToken(request); | |
| API and MCP server, Rust identity service, registration, site redesign | 108 | if (token) await identity.signOut(token); |
| Initial g1t: services, event bus, intents and attempts | 109 | return sessionCookie("", 0); |
| 110 | } | |
| 111 | ||
| Invite-only launch: sign in with GitHub, repository access and lifecycle, many emails, a new look | 112 | /** The session token the request carries, for proof of a recent sign-in. */ |
| 113 | export function sessionTokenOf(request: Request): string | null { | |
| 114 | return sessionToken(request); | |
| 115 | } | |
| 116 | ||
| 117 | /** The visitor's IP address, as Cloudflare saw it, for rate limits. */ | |
| 118 | export function clientOf(request: Request): string | null { | |
| 119 | return request.headers.get("cf-connecting-ip"); | |
| 120 | } | |
| 121 | ||
| Initial g1t: services, event bus, intents and attempts | 122 | /** Rejects cross-site form posts; call at the top of every action. */ |
| 123 | export function assertSameOrigin(request: Request): void { | |
| 124 | const origin = request.headers.get("origin"); | |
| 125 | if (origin && origin !== new URL(request.url).origin) { | |
| 126 | throw new Response("Cross-origin request rejected", { status: 403 }); | |
| 127 | } | |
| 128 | } | |
| 129 | ||
| 130 | /** The value of a service result, or the matching HTTP error. */ | |
| 131 | export function unwrap<T>(result: Result<T>): T { | |
| 132 | if (result.ok) return result.value; | |
| 133 | throw data(result.error.message, { status: httpStatus(result.error) }); | |
| 134 | } |