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/**
* @license
* Copyright 2025 Google LLC
* SPDX-License-Identifier: Apache-2.0
*/
import { describe, it, expect, vi, beforeEach, afterEach } from 'vitest';
import {
OAuthUtils,
OAuthAuthorizationServerMetadata,
OAuthProtectedResourceMetadata,
} from './oauth-utils.js';
// Mock fetch globally
const mockFetch = vi.fn();
global.fetch = mockFetch;
describe('OAuthUtils', () => {
beforeEach(() => {
vi.clearAllMocks();
vi.spyOn(console, 'debug').mockImplementation(() => {});
vi.spyOn(console, 'error').mockImplementation(() => {});
vi.spyOn(console, 'log').mockImplementation(() => {});
});
afterEach(() => {
vi.restoreAllMocks();
});
describe('buildWellKnownUrls', () => {
it('should build correct well-known URLs', () => {
const urls = OAuthUtils.buildWellKnownUrls('https://example.com/path');
expect(urls.protectedResource).toBe(
'https://example.com/.well-known/oauth-protected-resource',
);
expect(urls.authorizationServer).toBe(
'https://example.com/.well-known/oauth-authorization-server',
);
});
});
describe('fetchProtectedResourceMetadata', () => {
const mockResourceMetadata: OAuthProtectedResourceMetadata = {
resource: 'https://api.example.com',
authorization_servers: ['https://auth.example.com'],
bearer_methods_supported: ['header'],
};
it('should fetch protected resource metadata successfully', async () => {
mockFetch.mockResolvedValueOnce({
ok: true,
json: () => Promise.resolve(mockResourceMetadata),
});
const result = await OAuthUtils.fetchProtectedResourceMetadata(
'https://example.com/.well-known/oauth-protected-resource',
);
expect(result).toEqual(mockResourceMetadata);
});
it('should return null when fetch fails', async () => {
mockFetch.mockResolvedValueOnce({
ok: false,
});
const result = await OAuthUtils.fetchProtectedResourceMetadata(
'https://example.com/.well-known/oauth-protected-resource',
);
expect(result).toBeNull();
});
});
describe('fetchAuthorizationServerMetadata', () => {
const mockAuthServerMetadata: OAuthAuthorizationServerMetadata = {
issuer: 'https://auth.example.com',
authorization_endpoint: 'https://auth.example.com/authorize',
token_endpoint: 'https://auth.example.com/token',
scopes_supported: ['read', 'write'],
};
it('should fetch authorization server metadata successfully', async () => {
mockFetch.mockResolvedValueOnce({
ok: true,
json: () => Promise.resolve(mockAuthServerMetadata),
});
const result = await OAuthUtils.fetchAuthorizationServerMetadata(
'https://auth.example.com/.well-known/oauth-authorization-server',
);
expect(result).toEqual(mockAuthServerMetadata);
});
it('should return null when fetch fails', async () => {
mockFetch.mockResolvedValueOnce({
ok: false,
});
const result = await OAuthUtils.fetchAuthorizationServerMetadata(
'https://auth.example.com/.well-known/oauth-authorization-server',
);
expect(result).toBeNull();
});
});
describe('metadataToOAuthConfig', () => {
it('should convert metadata to OAuth config', () => {
const metadata: OAuthAuthorizationServerMetadata = {
issuer: 'https://auth.example.com',
authorization_endpoint: 'https://auth.example.com/authorize',
token_endpoint: 'https://auth.example.com/token',
scopes_supported: ['read', 'write'],
};
const config = OAuthUtils.metadataToOAuthConfig(metadata);
expect(config).toEqual({
authorizationUrl: 'https://auth.example.com/authorize',
tokenUrl: 'https://auth.example.com/token',
scopes: ['read', 'write'],
});
});
it('should handle empty scopes', () => {
const metadata: OAuthAuthorizationServerMetadata = {
issuer: 'https://auth.example.com',
authorization_endpoint: 'https://auth.example.com/authorize',
token_endpoint: 'https://auth.example.com/token',
};
const config = OAuthUtils.metadataToOAuthConfig(metadata);
expect(config.scopes).toEqual([]);
});
});
describe('parseWWWAuthenticateHeader', () => {
it('should parse resource metadata URI from WWW-Authenticate header', () => {
const header =
'Bearer realm="example", resource_metadata_uri="https://example.com/.well-known/oauth-protected-resource"';
const result = OAuthUtils.parseWWWAuthenticateHeader(header);
expect(result).toBe(
'https://example.com/.well-known/oauth-protected-resource',
);
});
it('should return null when no resource metadata URI is found', () => {
const header = 'Bearer realm="example"';
const result = OAuthUtils.parseWWWAuthenticateHeader(header);
expect(result).toBeNull();
});
});
describe('extractBaseUrl', () => {
it('should extract base URL from MCP server URL', () => {
const result = OAuthUtils.extractBaseUrl('https://example.com/mcp/v1');
expect(result).toBe('https://example.com');
});
it('should handle URLs with ports', () => {
const result = OAuthUtils.extractBaseUrl(
'https://example.com:8080/mcp/v1',
);
expect(result).toBe('https://example.com:8080');
});
});
describe('isSSEEndpoint', () => {
it('should return true for SSE endpoints', () => {
expect(OAuthUtils.isSSEEndpoint('https://example.com/sse')).toBe(true);
expect(OAuthUtils.isSSEEndpoint('https://example.com/api/v1/sse')).toBe(
true,
);
});
it('should return true for non-MCP endpoints', () => {
expect(OAuthUtils.isSSEEndpoint('https://example.com/api')).toBe(true);
});
it('should return false for MCP endpoints', () => {
expect(OAuthUtils.isSSEEndpoint('https://example.com/mcp')).toBe(false);
expect(OAuthUtils.isSSEEndpoint('https://example.com/api/mcp/v1')).toBe(
false,
);
});
});
describe('buildResourceParameter', () => {
it('should build resource parameter from endpoint URL', () => {
const result = OAuthUtils.buildResourceParameter(
'https://example.com/oauth/token',
);
expect(result).toBe('https://example.com');
});
it('should handle URLs with ports', () => {
const result = OAuthUtils.buildResourceParameter(
'https://example.com:8080/oauth/token',
);
expect(result).toBe('https://example.com:8080');
});
});
});
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