commit 2bb4670174e45bb6aba43e742b1a6c05c34cb880 · gmstn.systems/shard

+12

src/lib/state.ts

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       export const registrationState = {

     

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           registered: false,

     

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       };

     

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       export const setRegistrationState = (newState: boolean) => {

     

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           console.log("setting registration state to", newState);

     

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           const isRegistered = newState;

     

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           if (isRegistered) console.log("shard was registered at", new Date());

     

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           registrationState.registered = newState;

     

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       };

     

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       export const getRegistrationState = () => {

     

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           return registrationState;

     

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       };

+27

src/lib/types/prism.ts

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       import { didSchema, nsidSchema } from "@/lib/types/atproto";

     

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       import { z } from "zod";

     

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       const prismEventSchema = z.object({

     

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           did: didSchema,

     

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           time_us: z.number(),

     

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           kind: z.union([

     

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               z.literal("commit"),

     

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               z.literal("identity"),

     

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               z.literal("account"),

     

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           ]),

     

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       });

     

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       export const prismCommitSchema = prismEventSchema.safeExtend({

     

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           commit: z.object({

     

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               rev: z.string(),

     

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               operation: z.union([

     

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                   z.literal("create"),

     

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                   z.literal("update"),

     

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                   z.literal("delete"),

     

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               ]),

     

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               collection: nsidSchema,

     

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               rkey: z.string(),

     

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               record: z.record(z.string(), z.unknown()),

     

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           }),

     

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       });

     

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       export type PrismCommit = z.infer<typeof prismCommitSchema>;

+71

src/lib/utils/registration.ts

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       import { OWNER_DID, SERVICE_DID } from "@/lib/env";

     

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       import { getRegistrationState, setRegistrationState } from "@/lib/state";

     

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       import { prismCommitSchema } from "@/lib/types/prism";

     

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       import type { RouteHandler, WsRouteHandler } from "@/lib/types/routes";

     

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       import { newErrorResponse } from "@/lib/utils/http/responses";

     

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       import { rawDataToString } from "@/lib/utils/ws";

     

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       import type { RawData } from "ws";

     

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       import type WebSocket from "ws";

     

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       export const wrapHttpRegistrationCheck = (

     

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           routeHandler: RouteHandler,

     

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       ): RouteHandler => {

     

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           const registrationState = getRegistrationState();

     

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           const wrappedFunction: RouteHandler = (req, rep) => {

     

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               if (!registrationState.registered) {

     

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                   return newErrorResponse(503, {

     

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                       message:

     

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                           "Lattice has not been registered for use. Register it in the dashboard or make the record yourself using the bootstrapper if you're doing local development.",

     

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                   });

     

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               }

     

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               return routeHandler(req, rep);

     

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           };

     

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           return wrappedFunction;

     

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       };

     

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       export function wrapWsRegistrationCheck(

     

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           wsHandler: WsRouteHandler,

     

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       ): WsRouteHandler {

     

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           const registrationState = getRegistrationState();

     

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           const wrappedFunction: WsRouteHandler = (socket, request) => {

     

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               if (!registrationState.registered) {

     

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                   socket.close(

     

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                       1013,

     

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                       "Service unavailable: Lattice not yet registered",

     

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                   );

     

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                   return;

     

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               }

     

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               wsHandler(socket, request);

     

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           };

     

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           return wrappedFunction;

     

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       }

     

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       export const attachLatticeRegistrationListener = (socket: WebSocket) => {

     

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           socket.on("message", (rawData: RawData) => {

     

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               const data = rawDataToString(rawData);

     

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               const jsonData: unknown = JSON.parse(data);

     

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               const { success: prismCommitParseSuccess, data: prismCommit } =

     

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                   prismCommitSchema.safeParse(jsonData);

     

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               if (!prismCommitParseSuccess) return;

     

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               const { did, commit } = prismCommit;

     

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               if (did !== OWNER_DID) return;

     

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               const { rkey } = commit;

     

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               // TODO: replace empty string with call to resolve did doc and the endpoint and yadda yadda etc. etc. you get it.

     

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               // if you don't, then the tl;dr is you need to resolve the did:plc document to get the service endpoint describing this lattice and ensure

     

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               // that the domain/origin/whatever matches with the rkey (or record value if we decide to transition to that)

     

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               const latticeDomain = SERVICE_DID.startsWith("did:web:")

     

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                   ? SERVICE_DID.slice(8)

     

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                   : "";

     

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               if (rkey !== latticeDomain) return;

     

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               setRegistrationState(true);

     

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           });

     

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       };