commit da787410f2850afca47dbfb7a6145687085f34b9 · gmstn.systems/lattice

+58
src/lib/utils/atproto.ts
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       import type {

     

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           AtprotoHandle,

     

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           Did,

     

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           DidDocument} from "@/lib/types/atproto";

     

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       import {

     

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           atprotoHandleSchema

     

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       } from "@/lib/types/atproto";

     

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       import type { Result } from "@/lib/utils/result";

     

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       import type { DidDocumentResolver } from "@atcute/identity-resolver";

     

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       import {

     

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           CompositeDidDocumentResolver,

     

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           CompositeHandleResolver,

     

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           DohJsonHandleResolver,

     

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           PlcDidDocumentResolver,

     

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           WebDidDocumentResolver,

     

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           WellKnownHandleResolver,

     

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       } from "@atcute/identity-resolver";

     

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       export const didDocResolver: DidDocumentResolver =

     

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           new CompositeDidDocumentResolver({

     

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               methods: {

     

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                   plc: new PlcDidDocumentResolver(),

     

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                   web: new WebDidDocumentResolver(),

     

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               },

     

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           });

     

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       export const handleResolver = new CompositeHandleResolver({

     

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           strategy: "dns-first",

     

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           methods: {

     

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               dns: new DohJsonHandleResolver({

     

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                   dohUrl: "https://mozilla.cloudflare-dns.com/dns-query",

     

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               }),

     

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               http: new WellKnownHandleResolver(),

     

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           },

     

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       });

     

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       export const resolveDidDoc = async (

     

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           authority: Did | AtprotoHandle,

     

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       ): Promise<Result<DidDocument, unknown>> => {

     

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           const { data: handle } = atprotoHandleSchema.safeParse(authority);

     

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           let did: Did;

     

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           if (handle) {

     

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               try {

     

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                   did = await handleResolver.resolve(handle);

     

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               } catch (err) {

     

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                   return { ok: false, error: err };

     

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               }

     

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           } else {

     

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               // @ts-expect-error if handle is undefined, then we know that authority must be a valid did:web or did:plc

     

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               did = authority;

     

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           }

     

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           try {

     

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               const doc: DidDocument = await didDocResolver.resolve(did);

     

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               return { ok: true, data: doc };

     

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           } catch (err) {

     

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               return { ok: false, error: err };

     

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           }

     

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       };