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1import { JoseKey } from "@atproto/jwk-jose";
2import { OAuthClient } from "@atproto/oauth-client";
3import { AtprotoDohHandleResolver } from "@atproto-labs/handle-resolver";
4import { createStateStore, createSessionStore } from "./kv-stores";
5
6export function createOAuthClient(kv: KVNamespace, clientUrl: string) {
7 const clientId = `${clientUrl}/oauth/client-metadata.json`;
8 const redirectUri = `${clientUrl}/oauth/callback`;
9
10 return new OAuthClient({
11 responseMode: "query",
12 handleResolver: new AtprotoDohHandleResolver({
13 dohEndpoint: "https://cloudflare-dns.com/dns-query",
14 }),
15 clientMetadata: {
16 client_id: clientId,
17 client_name: "Sequoia",
18 client_uri: clientUrl,
19 redirect_uris: [redirectUri],
20 grant_types: ["authorization_code", "refresh_token"],
21 response_types: ["code"],
22 scope: "atproto repo:site.standard.graph.subscription?action=create",
23 token_endpoint_auth_method: "none",
24 application_type: "web",
25 dpop_bound_access_tokens: true,
26 },
27 runtimeImplementation: {
28 createKey: (algs: string[]) => JoseKey.generate(algs),
29 getRandomValues: (length: number) =>
30 crypto.getRandomValues(new Uint8Array(length)),
31 digest: async (data: Uint8Array, { name }: { name: string }) => {
32 const buf = await crypto.subtle.digest(
33 name.replace("sha", "SHA-"),
34 new Uint8Array(data),
35 );
36 return new Uint8Array(buf);
37 },
38 requestLock: <T>(_name: string, fn: () => T | PromiseLike<T>) => fn(),
39 },
40 stateStore: createStateStore(kv),
41 sessionStore: createSessionStore(kv),
42 });
43}