monkeeShark/packages/backend/test/e2e/oauth.ts

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/**
* Basic OAuth tests to make sure the library is correctly integrated to Misskey
* and not regressed by version updates or potential migration to another library.
*/
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process.env.NODE_ENV = 'test';
import * as assert from 'assert';
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import { AuthorizationCode, type AuthorizationTokenConfig } from 'simple-oauth2';
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import pkceChallenge from 'pkce-challenge';
import { JSDOM } from 'jsdom';
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import * as misskey from 'misskey-js';
import Fastify, { type FastifyInstance } from 'fastify';
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import { port, relativeFetch, signup, startServer } from '../utils.js';
import type { INestApplicationContext } from '@nestjs/common';
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const host = `http://127.0.0.1:${port}`;
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const clientPort = port + 1;
const redirect_uri = `http://127.0.0.1:${clientPort}/redirect`;
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interface OAuthErrorResponse {
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error: string;
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error_description: string;
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}
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interface AuthorizationParamsExtended {
redirect_uri: string;
scope: string | string[];
state: string;
code_challenge?: string;
code_challenge_method?: string;
}
interface AuthorizationTokenConfigExtended extends AuthorizationTokenConfig {
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code_verifier: string | undefined;
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}
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function getClient(): AuthorizationCode<'client_id'> {
return new AuthorizationCode({
client: {
id: `http://127.0.0.1:${clientPort}/`,
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secret: '',
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},
auth: {
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tokenHost: host,
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tokenPath: '/oauth/token',
authorizePath: '/oauth/authorize',
},
options: {
authorizationMethod: 'body',
},
});
}
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function getMeta(html: string): { transactionId: string | undefined, clientName: string | undefined } {
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const fragment = JSDOM.fragment(html);
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return {
transactionId: fragment.querySelector<HTMLMetaElement>('meta[name="misskey:oauth:transaction-id"]')?.content,
clientName: fragment.querySelector<HTMLMetaElement>('meta[name="misskey:oauth:client-name"]')?.content,
};
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}
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function fetchDecision(transactionId: string, user: misskey.entities.MeSignup, { cancel }: { cancel?: boolean } = {}): Promise<Response> {
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return fetch(new URL('/oauth/decision', host), {
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method: 'post',
body: new URLSearchParams({
transaction_id: transactionId!,
login_token: user.token,
cancel: cancel ? 'cancel' : '',
}),
redirect: 'manual',
headers: {
'content-type': 'application/x-www-form-urlencoded',
},
});
}
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async function fetchDecisionFromResponse(response: Response, user: misskey.entities.MeSignup, { cancel }: { cancel?: boolean } = {}): Promise<Response> {
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const { transactionId } = getMeta(await response.text());
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return await fetchDecision(transactionId!, user, { cancel });
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}
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async function fetchAuthorizationCode(user: ImmediateSignup, scope: string, code_challenge: string) {
const client = getClient();
const response = await fetch(client.authorizeURL({
redirect_uri,
scope,
state: 'state',
code_challenge,
code_challenge_method: 'S256',
} as AuthorizationParamsExtended));
assert.strictEqual(response.status, 200);
// TODO: this fetch-decision-code checks are everywhere, maybe get a helper for this.
const decisionResponse = await fetchDecisionFromResponse(response, user);
assert.strictEqual(decisionResponse.status, 302);
const location = new URL(decisionResponse.headers.get('location')!);
assert.ok(location.searchParams.has('code'));
const code = new URL(location).searchParams.get('code')!;
assert.ok(!!code);
return { client, code };
}
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describe('OAuth', () => {
let app: INestApplicationContext;
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let fastify: FastifyInstance;
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let alice: misskey.entities.MeSignup;
let bob: misskey.entities.MeSignup;
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beforeAll(async () => {
app = await startServer();
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alice = await signup({ username: 'alice' });
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bob = await signup({ username: 'bob' });
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}, 1000 * 60 * 2);
beforeEach(async () => {
process.env.MISSKEY_TEST_DISALLOW_LOOPBACK = '';
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fastify = Fastify();
fastify.get('/', async (request, reply) => {
reply.send(`
<!DOCTYPE html>
<link rel="redirect_uri" href="/redirect" />
<div class="h-app"><div class="p-name">Misklient
`);
});
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await fastify.listen({ port: clientPort });
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});
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afterAll(async () => {
await app.close();
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});
afterEach(async () => {
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await fastify.close();
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});
test('Full flow', async () => {
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const { code_challenge, code_verifier } = await pkceChallenge(128);
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const client = getClient();
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const response = await fetch(client.authorizeURL({
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redirect_uri,
scope: 'write:notes',
state: 'state',
code_challenge,
code_challenge_method: 'S256',
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} as AuthorizationParamsExtended));
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assert.strictEqual(response.status, 200);
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const meta = getMeta(await response.text());
assert.strictEqual(typeof meta.transactionId, 'string');
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assert.strictEqual(meta.clientName, 'Misklient');
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const decisionResponse = await fetchDecision(meta.transactionId!, alice);
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assert.strictEqual(decisionResponse.status, 302);
assert.ok(decisionResponse.headers.has('location'));
const location = new URL(decisionResponse.headers.get('location')!);
assert.strictEqual(location.origin + location.pathname, redirect_uri);
assert.ok(location.searchParams.has('code'));
assert.strictEqual(location.searchParams.get('state'), 'state');
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assert.strictEqual(location.searchParams.get('iss'), 'http://misskey.local'); // RFC 9207
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const token = await client.getToken({
code: location.searchParams.get('code')!,
redirect_uri,
code_verifier,
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} as AuthorizationTokenConfigExtended);
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assert.strictEqual(typeof token.token.access_token, 'string');
assert.strictEqual(token.token.token_type, 'Bearer');
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assert.strictEqual(token.token.scope, 'write:notes');
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const createResponse = await relativeFetch('api/notes/create', {
method: 'POST',
headers: {
Authorization: `Bearer ${token.token.access_token}`,
'Content-Type': 'application/json',
},
body: JSON.stringify({ text: 'test' }),
});
assert.strictEqual(createResponse.status, 200);
const createResponseBody: any = await createResponse.json();
assert.strictEqual(createResponseBody.createdNote.text, 'test');
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});
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test('Two concurrent flows', async () => {
const client = getClient();
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const pkceAlice = await pkceChallenge(128);
const pkceBob = await pkceChallenge(128);
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const responseAlice = await fetch(client.authorizeURL({
redirect_uri,
scope: 'write:notes',
state: 'state',
code_challenge: pkceAlice.code_challenge,
code_challenge_method: 'S256',
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} as AuthorizationParamsExtended));
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assert.strictEqual(responseAlice.status, 200);
const responseBob = await fetch(client.authorizeURL({
redirect_uri,
scope: 'write:notes',
state: 'state',
code_challenge: pkceBob.code_challenge,
code_challenge_method: 'S256',
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} as AuthorizationParamsExtended));
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assert.strictEqual(responseBob.status, 200);
const decisionResponseAlice = await fetchDecisionFromResponse(responseAlice, alice);
assert.strictEqual(decisionResponseAlice.status, 302);
const decisionResponseBob = await fetchDecisionFromResponse(responseBob, bob);
assert.strictEqual(decisionResponseBob.status, 302);
const locationAlice = new URL(decisionResponseAlice.headers.get('location')!);
assert.ok(locationAlice.searchParams.has('code'));
const locationBob = new URL(decisionResponseBob.headers.get('location')!);
assert.ok(locationBob.searchParams.has('code'));
const tokenAlice = await client.getToken({
code: locationAlice.searchParams.get('code')!,
redirect_uri,
code_verifier: pkceAlice.code_verifier,
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} as AuthorizationTokenConfigExtended);
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const tokenBob = await client.getToken({
code: locationBob.searchParams.get('code')!,
redirect_uri,
code_verifier: pkceBob.code_verifier,
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} as AuthorizationTokenConfigExtended);
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const createResponseAlice = await relativeFetch('api/notes/create', {
method: 'POST',
headers: {
Authorization: `Bearer ${tokenAlice.token.access_token}`,
'Content-Type': 'application/json',
},
body: JSON.stringify({ text: 'test' }),
});
assert.strictEqual(createResponseAlice.status, 200);
const createResponseBob = await relativeFetch('api/notes/create', {
method: 'POST',
headers: {
Authorization: `Bearer ${tokenBob.token.access_token}`,
'Content-Type': 'application/json',
},
body: JSON.stringify({ text: 'test' }),
});
assert.strictEqual(createResponseAlice.status, 200);
const createResponseBodyAlice = await createResponseAlice.json() as { createdNote: misskey.entities.Note };
assert.strictEqual(createResponseBodyAlice.createdNote.user.username, 'alice');
const createResponseBodyBob = await createResponseBob.json() as { createdNote: misskey.entities.Note };
assert.strictEqual(createResponseBodyBob.createdNote.user.username, 'bob');
});
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describe('PKCE', () => {
test('Require PKCE', async () => {
const client = getClient();
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// Pattern 1: No PKCE fields at all
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let response = await fetch(client.authorizeURL({
redirect_uri,
scope: 'write:notes',
state: 'state',
}));
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assert.strictEqual(response.status, 400);
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assert.strictEqual((await response.json() as OAuthErrorResponse).error, 'invalid_request');
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// Pattern 2: Only code_challenge
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response = await fetch(client.authorizeURL({
redirect_uri,
scope: 'write:notes',
state: 'state',
code_challenge: 'code',
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} as AuthorizationParamsExtended));
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assert.strictEqual(response.status, 400);
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assert.strictEqual((await response.json() as OAuthErrorResponse).error, 'invalid_request');
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// Pattern 2: Only code_challenge_method
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response = await fetch(client.authorizeURL({
redirect_uri,
scope: 'write:notes',
state: 'state',
code_challenge_method: 'S256',
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} as AuthorizationParamsExtended));
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assert.strictEqual(response.status, 400);
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assert.strictEqual((await response.json() as OAuthErrorResponse).error, 'invalid_request');
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// Pattern 3: Unsupported code_challenge_method
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response = await fetch(client.authorizeURL({
redirect_uri,
scope: 'write:notes',
state: 'state',
code_challenge: 'code',
code_challenge_method: 'SSSS',
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} as AuthorizationParamsExtended));
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assert.strictEqual(response.status, 400);
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assert.strictEqual((await response.json() as OAuthErrorResponse).error, 'invalid_request');
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});
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// Use precomputed challenge/verifier set here for deterministic test
const code_challenge = '4w2GDuvaxXlw2l46k5PFIoIcTGHdzw2i3hrn-C_Q6f7u0-nTYKd-beVEYy9XinYsGtAix.Nnvr.GByD3lAii2ibPRsSDrZgIN0YQb.kfevcfR9aDKoTLyOUm4hW4ABhs';
const code_verifier = 'Ew8VSBiH59JirLlg7ocFpLQ6NXuFC1W_rn8gmRzBKc8';
const tests: Record<string, string | undefined> = {
'Code followed by some junk code': code_verifier + 'x',
'Clipped code': code_verifier.slice(0, 80),
'Some part of code is replaced': code_verifier.slice(0, -10) + 'x'.repeat(10),
'No verifier': undefined,
};
describe('Verify PKCE', () => {
for (const [title, code_verifier] of Object.entries(tests)) {
test(title, async () => {
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const { client, code } = await fetchAuthorizationCode(alice, 'write:notes', code_challenge);
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await assert.rejects(client.getToken({
code,
redirect_uri,
code_verifier,
} as AuthorizationTokenConfigExtended));
// And now the code is invalidated by the previous failure
await assert.rejects(client.getToken({
code,
redirect_uri,
code_verifier,
} as AuthorizationTokenConfigExtended));
});
}
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});
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});
test('Cancellation', async () => {
const client = getClient();
const response = await fetch(client.authorizeURL({
redirect_uri,
scope: 'write:notes',
state: 'state',
code_challenge: 'code',
code_challenge_method: 'S256',
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} as AuthorizationParamsExtended));
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assert.strictEqual(response.status, 200);
const decisionResponse = await fetchDecisionFromResponse(response, alice, { cancel: true });
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assert.strictEqual(decisionResponse.status, 302);
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const location = new URL(decisionResponse.headers.get('location')!);
assert.ok(!location.searchParams.has('code'));
assert.ok(location.searchParams.has('error'));
});
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describe('Scope', () => {
test('Missing scope', async () => {
const client = getClient();
const response = await fetch(client.authorizeURL({
redirect_uri,
state: 'state',
code_challenge: 'code',
code_challenge_method: 'S256',
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} as AuthorizationParamsExtended));
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assert.strictEqual(response.status, 400);
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assert.strictEqual((await response.json() as OAuthErrorResponse).error, 'invalid_scope');
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});
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test('Empty scope', async () => {
const client = getClient();
const response = await fetch(client.authorizeURL({
redirect_uri,
scope: '',
state: 'state',
code_challenge: 'code',
code_challenge_method: 'S256',
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} as AuthorizationParamsExtended));
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assert.strictEqual(response.status, 400);
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assert.strictEqual((await response.json() as OAuthErrorResponse).error, 'invalid_scope');
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});
test('Unknown scopes', async () => {
const client = getClient();
const response = await fetch(client.authorizeURL({
redirect_uri,
scope: 'test:unknown test:unknown2',
state: 'state',
code_challenge: 'code',
code_challenge_method: 'S256',
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} as AuthorizationParamsExtended));
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assert.strictEqual(response.status, 400);
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assert.strictEqual((await response.json() as OAuthErrorResponse).error, 'invalid_scope');
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});
test('Partially known scopes', async () => {
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const { code_challenge, code_verifier } = await pkceChallenge(128);
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// Just get the known scope for this case for backward compatibility
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const { client, code } = await fetchAuthorizationCode(
alice,
'write:notes test:unknown test:unknown2',
code_challenge,
);
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const token = await client.getToken({
code,
redirect_uri,
code_verifier,
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} as AuthorizationTokenConfigExtended);
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// OAuth2 requires returning `scope` in the token response if the resulting scope is different than the requested one
// (Although Misskey always return scope, which is also fine)
assert.strictEqual(token.token.scope, 'write:notes');
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});
test('Known scopes', async () => {
const client = getClient();
const response = await fetch(client.authorizeURL({
redirect_uri,
scope: 'write:notes read:account',
state: 'state',
code_challenge: 'code',
code_challenge_method: 'S256',
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} as AuthorizationParamsExtended));
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assert.strictEqual(response.status, 200);
});
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test('Duplicated scopes', async () => {
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const { code_challenge, code_verifier } = await pkceChallenge(128);
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const { client, code } = await fetchAuthorizationCode(
alice,
'write:notes write:notes read:account read:account',
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code_challenge,
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);
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const token = await client.getToken({
code,
redirect_uri,
code_verifier,
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} as AuthorizationTokenConfigExtended);
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assert.strictEqual(token.token.scope, 'write:notes read:account');
});
test('Scope check by API', async () => {
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const { code_challenge, code_verifier } = await pkceChallenge(128);
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const { client, code } = await fetchAuthorizationCode(alice, 'read:account', code_challenge);
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const token = await client.getToken({
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code,
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redirect_uri,
code_verifier,
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} as AuthorizationTokenConfigExtended);
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assert.strictEqual(typeof token.token.access_token, 'string');
const createResponse = await relativeFetch('api/notes/create', {
method: 'POST',
headers: {
Authorization: `Bearer ${token.token.access_token}`,
'Content-Type': 'application/json',
},
body: JSON.stringify({ text: 'test' }),
});
// XXX: PERMISSION_DENIED is not using kind: 'permission' and gives 400 instead of 403
assert.strictEqual(createResponse.status, 400);
});
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});
test('Authorization header', async () => {
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const { code_challenge, code_verifier } = await pkceChallenge(128);
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const { client, code } = await fetchAuthorizationCode(alice, 'write:notes', code_challenge);
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const token = await client.getToken({
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code,
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redirect_uri,
code_verifier,
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} as AuthorizationTokenConfigExtended);
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// Pattern 1: No preceding "Bearer "
let createResponse = await relativeFetch('api/notes/create', {
method: 'POST',
headers: {
Authorization: token.token.access_token as string,
'Content-Type': 'application/json',
},
body: JSON.stringify({ text: 'test' }),
});
assert.strictEqual(createResponse.status, 401);
// Pattern 2: Incorrect token
createResponse = await relativeFetch('api/notes/create', {
method: 'POST',
headers: {
Authorization: `Bearer ${(token.token.access_token as string).slice(0, -1)}`,
'Content-Type': 'application/json',
},
body: JSON.stringify({ text: 'test' }),
});
// RFC 6750 section 3.1 says 401 but it's SHOULD not MUST. 403 should be okay for now.
assert.strictEqual(createResponse.status, 403);
// TODO: error code (invalid_token)
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});
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describe('Redirection', () => {
test('Invalid redirect_uri at authorization endpoint', async () => {
const client = getClient();
const response = await fetch(client.authorizeURL({
redirect_uri: 'http://127.0.0.2/',
scope: 'write:notes',
state: 'state',
code_challenge: 'code',
code_challenge_method: 'S256',
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} as AuthorizationParamsExtended));
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assert.strictEqual(response.status, 400);
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assert.strictEqual((await response.json() as OAuthErrorResponse).error, 'invalid_request');
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});
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test('Invalid redirect_uri including the valid one at authorization endpoint', async () => {
const client = getClient();
const response = await fetch(client.authorizeURL({
redirect_uri: 'http://127.0.0.1/redirection',
scope: 'write:notes',
state: 'state',
code_challenge: 'code',
code_challenge_method: 'S256',
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} as AuthorizationParamsExtended));
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assert.strictEqual(response.status, 400);
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assert.strictEqual((await response.json() as OAuthErrorResponse).error, 'invalid_request');
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});
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test('No redirect_uri at authorization endpoint', async () => {
const client = getClient();
const response = await fetch(client.authorizeURL({
scope: 'write:notes',
state: 'state',
code_challenge: 'code',
code_challenge_method: 'S256',
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} as AuthorizationParamsExtended));
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assert.strictEqual(response.status, 400);
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assert.strictEqual((await response.json() as OAuthErrorResponse).error, 'invalid_request');
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});
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test('Invalid redirect_uri at token endpoint', async () => {
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const { code_challenge, code_verifier } = await pkceChallenge(128);
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const { client, code } = await fetchAuthorizationCode(alice, 'write:notes', code_challenge);
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await assert.rejects(client.getToken({
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code,
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redirect_uri: 'http://127.0.0.2/',
code_verifier,
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} as AuthorizationTokenConfigExtended));
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});
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test('Invalid redirect_uri including the valid one at token endpoint', async () => {
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const { code_challenge, code_verifier } = await pkceChallenge(128);
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const { client, code } = await fetchAuthorizationCode(alice, 'write:notes', code_challenge);
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await assert.rejects(client.getToken({
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code,
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redirect_uri: 'http://127.0.0.1/redirection',
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code_verifier,
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} as AuthorizationTokenConfigExtended));
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});
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test('No redirect_uri at token endpoint', async () => {
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const { code_challenge, code_verifier } = await pkceChallenge(128);
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const { client, code } = await fetchAuthorizationCode(alice, 'write:notes', code_challenge);
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await assert.rejects(client.getToken({
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code,
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code_verifier,
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} as AuthorizationTokenConfigExtended));
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});
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});
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test('Server metadata', async () => {
const response = await fetch(new URL('.well-known/oauth-authorization-server', host));
assert.strictEqual(response.status, 200);
const body = await response.json();
assert.strictEqual(body.issuer, 'http://misskey.local');
assert.ok(body.scopes_supported.includes('write:notes'));
});
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describe('Client Information Discovery', () => {
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describe('Redirection', () => {
test('Read HTTP header', async () => {
await fastify.close();
fastify = Fastify();
fastify.get('/', async (request, reply) => {
reply.header('Link', '</redirect>; rel="redirect_uri"');
reply.send(`
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<!DOCTYPE html>
<div class="h-app"><div class="p-name">Misklient
`);
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});
await fastify.listen({ port: clientPort });
const client = getClient();
const response = await fetch(client.authorizeURL({
redirect_uri,
scope: 'write:notes',
state: 'state',
code_challenge: 'code',
code_challenge_method: 'S256',
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} as AuthorizationParamsExtended));
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assert.strictEqual(response.status, 200);
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});
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test('Mixed links', async () => {
await fastify.close();
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fastify = Fastify();
fastify.get('/', async (request, reply) => {
reply.header('Link', '</redirect>; rel="redirect_uri"');
reply.send(`
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<!DOCTYPE html>
<link rel="redirect_uri" href="/redirect2" />
<div class="h-app"><div class="p-name">Misklient
`);
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});
await fastify.listen({ port: clientPort });
const client = getClient();
const response = await fetch(client.authorizeURL({
redirect_uri,
scope: 'write:notes',
state: 'state',
code_challenge: 'code',
code_challenge_method: 'S256',
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} as AuthorizationParamsExtended));
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assert.strictEqual(response.status, 200);
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});
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test('Multiple items in Link header', async () => {
await fastify.close();
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fastify = Fastify();
fastify.get('/', async (request, reply) => {
reply.header('Link', '</redirect2>; rel="redirect_uri",</redirect>; rel="redirect_uri"');
reply.send(`
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<!DOCTYPE html>
<div class="h-app"><div class="p-name">Misklient
`);
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});
await fastify.listen({ port: clientPort });
const client = getClient();
const response = await fetch(client.authorizeURL({
redirect_uri,
scope: 'write:notes',
state: 'state',
code_challenge: 'code',
code_challenge_method: 'S256',
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} as AuthorizationParamsExtended));
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assert.strictEqual(response.status, 200);
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});
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test('Multiple items in HTML', async () => {
await fastify.close();
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fastify = Fastify();
fastify.get('/', async (request, reply) => {
reply.send(`
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<!DOCTYPE html>
<link rel="redirect_uri" href="/redirect2" />
<link rel="redirect_uri" href="/redirect" />
<div class="h-app"><div class="p-name">Misklient
`);
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});
await fastify.listen({ port: clientPort });
const client = getClient();
const response = await fetch(client.authorizeURL({
redirect_uri,
scope: 'write:notes',
state: 'state',
code_challenge: 'code',
code_challenge_method: 'S256',
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} as AuthorizationParamsExtended));
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assert.strictEqual(response.status, 200);
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});
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test('No item', async () => {
await fastify.close();
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fastify = Fastify();
fastify.get('/', async (request, reply) => {
reply.send(`
<!DOCTYPE html>
<div class="h-app"><div class="p-name">Misklient
`);
});
await fastify.listen({ port: clientPort });
const client = getClient();
const response = await fetch(client.authorizeURL({
redirect_uri,
scope: 'write:notes',
state: 'state',
code_challenge: 'code',
code_challenge_method: 'S256',
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} as AuthorizationParamsExtended));
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assert.strictEqual(response.status, 400);
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assert.strictEqual((await response.json() as OAuthErrorResponse).error, 'invalid_request');
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});
});
test('Disallow loopback', async () => {
process.env.MISSKEY_TEST_DISALLOW_LOOPBACK = '1';
const client = getClient();
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const response = await fetch(client.authorizeURL({
redirect_uri,
scope: 'write:notes',
state: 'state',
code_challenge: 'code',
code_challenge_method: 'S256',
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} as AuthorizationParamsExtended));
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assert.strictEqual(response.status, 400);
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assert.strictEqual((await response.json() as OAuthErrorResponse).error, 'invalid_request');
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});
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test('Missing name', async () => {
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await fastify.close();
fastify = Fastify();
fastify.get('/', async (request, reply) => {
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reply.header('Link', '</redirect>; rel="redirect_uri"');
reply.send();
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});
await fastify.listen({ port: clientPort });
const client = getClient();
const response = await fetch(client.authorizeURL({
redirect_uri,
scope: 'write:notes',
state: 'state',
code_challenge: 'code',
code_challenge_method: 'S256',
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} as AuthorizationParamsExtended));
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assert.strictEqual(response.status, 200);
assert.strictEqual(getMeta(await response.text()).clientName, `http://127.0.0.1:${clientPort}/`);
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});
});
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// TODO: Invalid decision endpoint parameters
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// TODO: Unknown OAuth endpoint
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// TODO: successful token exchange should invalidate the grant token (spec?)
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});