feat(server): add request-time OAuth scope challenges (#1624)
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Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com> Co-authored-by: Claude <noreply@anthropic.com>
This commit is contained in:
Sam Morrow
GitHub
parent
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6032170087
18 changed files with 1310 additions and 104 deletions
22
.changeset/scope-challenge-server.md
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22
.changeset/scope-challenge-server.md
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@ -0,0 +1,22 @@
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---
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'@modelcontextprotocol/server': minor
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'@modelcontextprotocol/node': minor
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---
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Add request-time OAuth scope challenges for tools, resources, resource templates,
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and prompts. Each primitive's `scopeChallenge` callback receives the parsed
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request and verified authentication info, then either continues or returns the
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exact scope set for an `insufficient_scope` response. `requireScopes` provides a
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small helper for static all-of checks.
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`createMcpHandler` and Streamable HTTP transports return HTTP 403 with an
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`insufficient_scope` challenge before handler execution or SSE setup. The
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preflight is active whenever a registered primitive carries a `scopeChallenge`
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callback — there is no handler- or transport-level configuration. The
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challenge's `WWW-Authenticate` header is built by the same formatter as the
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bearer-auth 401/403 answers, and its `resource_metadata` parameter is derived
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from the verified `AuthInfo`: `requireBearerAuth` / `verifyBearerToken` now
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stamp their configured `resourceMetadataUrl` onto the `AuthInfo` they return
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(new optional `AuthInfo.resourceMetadataUrl` field), with a fallback to the
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well-known location for an HTTP(S) RFC 8707 `resource` identifier; the
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parameter is omitted when neither is available.
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@ -30,6 +30,7 @@ CI pass — that reopens the silent-drift hole the pin exists to close.
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| Published package set, export maps, dual ESM/CJS topology | `packages/core-internal/test/packageTopologyPins.test.ts` |
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| stdio environment-inheritance safelist | `packages/client/test/client/stdioEnvPins.test.ts` |
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| 2025-11-25 wire method-registry membership, schema identity | `packages/core-internal/test/types/registryPins.test.ts` |
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| OAuth scope challenge timing and serialization | `packages/server/test/server/scopeChallenge.test.ts` |
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## Writing a new pin
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@ -1,6 +1,6 @@
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---
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shape: how-to
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description: 'Require a bearer token on a server you run: verification, protected-resource metadata, and per-tool scopes.'
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description: 'Require a bearer token on a server you run: verification, protected-resource metadata, and per-operation scopes.'
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---
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# Require authorization
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@ -21,7 +21,8 @@ import {
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} from '@modelcontextprotocol/express';
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import { toNodeHandler } from '@modelcontextprotocol/node';
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import type { AuthInfo, OAuthMetadata } from '@modelcontextprotocol/server';
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import { createMcpHandler, McpServer } from '@modelcontextprotocol/server';
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import { createMcpHandler, McpServer, requireScopes } from '@modelcontextprotocol/server';
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import * as z from 'zod/v4';
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const mcpServerUrl = new URL('https://api.example.com/mcp');
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const verifier: OAuthTokenVerifier = { verifyAccessToken };
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@ -116,23 +117,49 @@ server.registerTool('whoami', { description: 'Report the authenticated caller' }
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The per-request factory itself receives the same value as `ctx.authInfo`, so it can register a different tool set per caller before any handler runs.
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:::
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## Enforce per-tool scopes
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## Enforce per-operation scopes
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`requiredScopes` gates the whole endpoint. For a scope only some tools need, check inside the handler — the handler is the only place that knows which tool is executing.
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`requiredScopes` gates the whole endpoint. For scope step-up on an individual tool call, resource read, or prompt retrieval, set `scopeChallenge` on its registration — no handler or transport configuration is needed. The callback receives the full parsed request and verified `authInfo`. Return `undefined` to continue, or return the exact, complete scope set to send `403 insufficient_scope` before invocation or SSE. Throwing or rejecting fails closed.
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```ts source="../../examples/guides/serving/authorization.examples.ts#perToolScopes_handler"
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server.registerTool('purge-notes', { description: 'Delete every note' }, async ctx => {
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if (!ctx.http?.authInfo?.scopes.includes('notes:write')) {
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return { content: [{ type: 'text', text: 'insufficient_scope: purge-notes requires notes:write' }], isError: true };
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}
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return { content: [{ type: 'text', text: 'All notes deleted' }] };
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});
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The challenge uses the same OAuth `insufficient_scope` JSON body and `WWW-Authenticate` formatter as `requireBearerAuth`'s own `403` answer. Its `resource_metadata` parameter comes from the verified `AuthInfo`: the gate stamps its configured `resourceMetadataUrl` onto the `AuthInfo` it returns, so the metadata URL is configured exactly once — on `requireBearerAuth`. Without a stamped value the parameter falls back to the well-known location for the token's RFC 8707 `resource` identifier, or is omitted.
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Use `requireScopes` for a static exact all-of check. Use a callback when the required scope set depends on the request:
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```ts source="../../examples/guides/serving/authorization.examples.ts#perOperationScopes_challenge"
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server.registerTool('purge-notes', { scopeChallenge: requireScopes('notes:write') }, async () => ({
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content: [{ type: 'text', text: 'All notes deleted' }]
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}));
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server.registerResource('private-notes', 'notes://private', { scopeChallenge: requireScopes('notes:read') }, async uri => ({
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contents: [{ uri: uri.href, text: 'Private notes' }]
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}));
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server.registerPrompt('summarize-notes', { scopeChallenge: requireScopes('notes:read') }, async () => ({
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messages: [{ role: 'user', content: { type: 'text', text: 'Summarize my private notes' } }]
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}));
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server.registerTool(
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'read-repository',
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{
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inputSchema: z.object({ visibility: z.enum(['public', 'private']) }),
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scopeChallenge: ({ request, authInfo }) => {
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const visibility = (request.params as { arguments?: { visibility?: unknown } }).arguments?.visibility;
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if (visibility !== 'public' && visibility !== 'private') return;
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const scopes = visibility === 'private' ? (['repo:read'] as const) : (['public_repo'] as const);
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return scopes.every(scope => authInfo?.scopes.includes(scope))
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? undefined
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: { scopes, errorDescription: `${visibility} repository access is required` };
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}
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},
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async ({ visibility }) => ({ content: [{ type: 'text', text: `Read ${visibility} repository` }] })
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);
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```
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A caller holding only `mcp` gets an ordinary tool result with `isError: true`, so the model reads the refusal and moves on instead of losing the connection.
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Scope interpretation belongs to your callback; the SDK does not infer hierarchies, alternatives, or missing scopes. Challenged primitives remain visible in their list operations.
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::: info
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Responding `403 insufficient_scope` at the HTTP layer instead triggers the client transport's automatic scope step-up (SEP-2350) — see [Authenticate a user with OAuth](../clients/oauth.md).
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::: warning
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The callback runs before the primitive's input schema is validated or transformed. Its `request` contains the JSON-parsed wire values, so dynamic authorization should validate or canonicalize any value whose schema changes its meaning before handler invocation. Scope names must follow the OAuth `scope-token` grammar; `errorDescription`, when provided, must follow RFC 6750's `error-description` grammar.
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:::
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## Recap
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@ -141,5 +168,5 @@ Responding `403 insufficient_scope` at the HTTP layer instead triggers the clien
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- `requireBearerAuth` plus a `verifyAccessToken` you write turn an Express-mounted MCP route into an OAuth resource server; the SDK never issues tokens.
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- Missing, invalid, or expired tokens get `401 invalid_token`; a token missing a `requiredScopes` entry gets `403 insufficient_scope`; both carry a `WWW-Authenticate: Bearer` challenge.
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- `mcpAuthMetadataRouter` publishes the RFC 9728 document that challenge points at, plus a mirror of the AS metadata.
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- Verified auth flows `req.auth` → `ctx.http.authInfo`; per-tool scopes are a check inside the handler that returns `isError: true`.
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- Verified auth flows `req.auth` → `ctx.http.authInfo`; per-operation callbacks can trigger HTTP `403` scope step-up before invocation, advertising the metadata URL the gate stamped onto `AuthInfo`.
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- The v1 Authorization Server helpers are frozen in `@modelcontextprotocol/server-legacy/auth`.
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@ -22,7 +22,8 @@ import {
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} from '@modelcontextprotocol/express';
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import { toNodeHandler } from '@modelcontextprotocol/node';
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import type { AuthInfo, OAuthMetadata } from '@modelcontextprotocol/server';
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import { createMcpHandler, McpServer } from '@modelcontextprotocol/server';
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import { createMcpHandler, McpServer, requireScopes } from '@modelcontextprotocol/server';
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import * as z from 'zod/v4';
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const mcpServerUrl = new URL('https://api.example.com/mcp');
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const verifier: OAuthTokenVerifier = { verifyAccessToken };
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@ -72,14 +73,36 @@ function buildServer(): McpServer {
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});
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//#endregion authInfo_handler
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//#region perToolScopes_handler
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server.registerTool('purge-notes', { description: 'Delete every note' }, async ctx => {
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if (!ctx.http?.authInfo?.scopes.includes('notes:write')) {
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return { content: [{ type: 'text', text: 'insufficient_scope: purge-notes requires notes:write' }], isError: true };
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}
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return { content: [{ type: 'text', text: 'All notes deleted' }] };
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});
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//#endregion perToolScopes_handler
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//#region perOperationScopes_challenge
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server.registerTool('purge-notes', { scopeChallenge: requireScopes('notes:write') }, async () => ({
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content: [{ type: 'text', text: 'All notes deleted' }]
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}));
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server.registerResource('private-notes', 'notes://private', { scopeChallenge: requireScopes('notes:read') }, async uri => ({
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contents: [{ uri: uri.href, text: 'Private notes' }]
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}));
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server.registerPrompt('summarize-notes', { scopeChallenge: requireScopes('notes:read') }, async () => ({
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messages: [{ role: 'user', content: { type: 'text', text: 'Summarize my private notes' } }]
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}));
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server.registerTool(
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'read-repository',
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{
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inputSchema: z.object({ visibility: z.enum(['public', 'private']) }),
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scopeChallenge: ({ request, authInfo }) => {
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const visibility = (request.params as { arguments?: { visibility?: unknown } }).arguments?.visibility;
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if (visibility !== 'public' && visibility !== 'private') return;
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const scopes = visibility === 'private' ? (['repo:read'] as const) : (['public_repo'] as const);
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return scopes.every(scope => authInfo?.scopes.includes(scope))
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? undefined
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: { scopes, errorDescription: `${visibility} repository access is required` };
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}
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},
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async ({ visibility }) => ({ content: [{ type: 'text', text: `Read ${visibility} repository` }] })
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);
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//#endregion perOperationScopes_challenge
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return server;
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}
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@ -751,6 +751,19 @@ export interface AuthInfo {
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*/
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resource?: URL;
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/**
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* URL of the RFC 9728 Protected Resource Metadata document for the
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* resource server that accepted this token.
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*
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* The bearer-auth helpers stamp their configured `resourceMetadataUrl`
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* here when verification succeeds, so challenge responses built after
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* authentication (for example per-operation `insufficient_scope` scope
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* challenges) can advertise the same document as the authentication
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* gate's own challenges without separate configuration. Verifiers may
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* also populate it directly; a verifier-set value wins.
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*/
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resourceMetadataUrl?: string;
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/**
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* Additional data associated with the token.
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* This field should be used for any additional data that needs to be attached to the auth info.
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@ -15,6 +15,7 @@ import type {
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JSONRPCMessage,
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MessageExtraInfo,
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RequestId,
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ScopeChallengeHandler,
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Transport,
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WebStandardStreamableHTTPServerTransportOptions
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} from '@modelcontextprotocol/server';
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@ -169,6 +170,11 @@ export class NodeStreamableHTTPServerTransport implements Transport {
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this._webStandardTransport.setSupportedProtocolVersions(versions);
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}
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/** Sets the scope challenge resolver used by the wrapped Web Standard transport. */
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setScopeChallengeResolver(resolver: ScopeChallengeHandler): void {
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this._webStandardTransport.setScopeChallengeResolver(resolver);
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}
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/**
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* Handles an incoming HTTP request, whether `GET` or `POST`.
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*
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@ -65,6 +65,8 @@ export { InMemoryServerEventBus } from './server/serverEventBus';
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// StdioServerTransport and the serveStdio entry are exported from the './stdio' subpath — server stdio
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// has only type-level Node imports (erased at compile time), but matching the client's `./stdio` subpath
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// gives consumers a consistent shape across packages.
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export type { ScopeChallenge, ScopeChallengeHandler } from './server/scopeChallenge';
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export { requireScopes } from './server/scopeChallenge';
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export type {
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EventId,
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EventStore,
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@ -64,6 +64,7 @@ import { createListenRouter, DEFAULT_MAX_SUBSCRIPTIONS } from './listenRouter';
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import { McpServer } from './mcp';
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import type { PerRequestResponseMode } from './perRequestTransport';
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import { DEFAULT_MAX_REQUEST_BODY_SIZE, readRequestBody, requestBodyTooLargeMessage, resolveMaxRequestBodySize } from './requestBody';
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import { createScopeChallengeResponse, findScopeChallenge, scopeChallengeResourceMetadataUrl } from './scopeChallenge';
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import type { Server } from './server';
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import { installModernOnlyHandlers, seedClientIdentityFromEnvelope, serverIdentityOf } from './server';
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import type { ServerEventBus, ServerNotifier } from './serverEventBus';
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@ -831,6 +832,26 @@ export function createMcpHandler(factory: McpServerFactory, options: CreateMcpHa
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}
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}
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// Run scope preflight after Mcp-Param headers have been checked against
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// the body. Active whenever the factory's instance registers a
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// per-primitive scopeChallenge callback — no handler-level
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// configuration exists: the challenge's resource_metadata parameter is
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// derived from the verified AuthInfo (stamped by the bearer-auth gate,
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// or the token's RFC 8707 resource identifier) and omitted otherwise.
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if (route.messageKind === 'request' && product instanceof McpServer) {
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try {
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const challenge = await findScopeChallenge([route.message], authInfo, context => product.resolveScopeChallenge(context));
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if (challenge !== undefined) {
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void product.close().catch(reportError);
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return createScopeChallengeResponse(challenge, scopeChallengeResourceMetadataUrl(authInfo));
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}
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} catch (error) {
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void product.close().catch(reportError);
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reportError(toError(error));
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return internalServerErrorResponse(route.message.id);
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}
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}
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// Era-write at instance binding, then modern-only handler installation —
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// both before the instance is connected to the per-request transport.
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setNegotiatedProtocolVersion(server, claimedRevision);
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@ -47,6 +47,8 @@ import {
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import type * as z from 'zod/v4';
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import { getCompleter, isCompletable } from './completable';
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import type { ScopeChallengeHandler } from './scopeChallenge';
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import { supportsScopeChallengeResolver } from './scopeChallenge';
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import type { ServerOptions } from './server';
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import { Server } from './server';
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@ -146,6 +148,9 @@ export class McpServer {
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* ```
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*/
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async connect(transport: Transport): Promise<void> {
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if (supportsScopeChallengeResolver(transport)) {
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transport.setScopeChallengeResolver(context => this.resolveScopeChallenge(context));
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}
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return await this.server.connect(transport);
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}
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@ -156,6 +161,53 @@ export class McpServer {
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await this.server.close();
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}
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/** @internal */
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resolveScopeChallenge: ScopeChallengeHandler = context => {
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switch (context.request.method) {
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case 'tools/call': {
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const toolName = (context.request.params as { name?: unknown } | undefined)?.name;
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if (typeof toolName !== 'string') return;
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const tool = this._registeredTools[toolName];
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if (tool === undefined || !tool.enabled) return;
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return tool.scopeChallenge?.(context);
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}
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case 'resources/read': {
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const resourceUri = (context.request.params as { uri?: unknown } | undefined)?.uri;
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if (typeof resourceUri !== 'string') return;
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let uri: URL;
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try {
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uri = new URL(resourceUri);
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} catch {
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return;
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}
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const resource = this._registeredResources[uri.toString()];
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if (resource !== undefined) {
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return resource.enabled ? resource.scopeChallenge?.(context) : undefined;
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}
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for (const template of Object.values(this._registeredResourceTemplates)) {
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const variables = template.resourceTemplate.uriTemplate.match(uri.toString());
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if (variables) {
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return template.enabled ? template.scopeChallenge?.(context) : undefined;
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}
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}
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return;
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}
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case 'prompts/get': {
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const promptName = (context.request.params as { name?: unknown } | undefined)?.name;
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if (typeof promptName !== 'string') return;
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const prompt = this._registeredPrompts[promptName];
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if (prompt === undefined || !prompt.enabled) return;
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return prompt.scopeChallenge?.(context);
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}
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default: {
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return;
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}
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}
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};
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private _toolHandlersInitialized = false;
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private setToolRequestHandlers() {
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@ -502,6 +554,12 @@ export class McpServer {
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for (const template of Object.values(this._registeredResourceTemplates)) {
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const variables = template.resourceTemplate.uriTemplate.match(uri.toString());
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if (variables) {
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if (!template.enabled) {
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throw new ProtocolError(
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ProtocolErrorCode.InvalidParams,
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`Resource template ${template.resourceTemplate.uriTemplate} disabled`
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);
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}
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return attachCacheHintFallback(await template.readCallback(uri, variables, ctx), template.cacheHint);
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}
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}
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@ -588,31 +646,27 @@ export class McpServer {
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registerResource(
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name: string,
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uriOrTemplate: string,
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config: ResourceMetadata & { cacheHint?: CacheHint },
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config: ResourceMetadata & { cacheHint?: CacheHint; scopeChallenge?: ScopeChallengeHandler },
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readCallback: ReadResourceCallback
|
||||
): RegisteredResource;
|
||||
registerResource(
|
||||
name: string,
|
||||
uriOrTemplate: ResourceTemplate,
|
||||
config: ResourceMetadata & { cacheHint?: CacheHint },
|
||||
config: ResourceMetadata & { cacheHint?: CacheHint; scopeChallenge?: ScopeChallengeHandler },
|
||||
readCallback: ReadResourceTemplateCallback
|
||||
): RegisteredResourceTemplate;
|
||||
registerResource(
|
||||
name: string,
|
||||
uriOrTemplate: string | ResourceTemplate,
|
||||
config: ResourceMetadata & { cacheHint?: CacheHint },
|
||||
config: ResourceMetadata & { cacheHint?: CacheHint; scopeChallenge?: ScopeChallengeHandler },
|
||||
readCallback: ReadResourceCallback | ReadResourceTemplateCallback
|
||||
): RegisteredResource | RegisteredResourceTemplate {
|
||||
// The cache hint configures the encode-time cache fields of this
|
||||
// resource's `resources/read` results (2026-07-28); it is not resource
|
||||
// metadata and never appears on `resources/list` entries.
|
||||
const cacheHint = config.cacheHint;
|
||||
let metadata: ResourceMetadata = config;
|
||||
// These options configure request handling and are not advertised as
|
||||
// resource metadata by `resources/list`.
|
||||
const { cacheHint, scopeChallenge, ...resourceMetadata } = config;
|
||||
const metadata: ResourceMetadata = resourceMetadata;
|
||||
if (cacheHint !== undefined) {
|
||||
assertValidCacheHint(cacheHint, `resource ${name}`);
|
||||
const rest = { ...config };
|
||||
delete rest.cacheHint;
|
||||
metadata = rest;
|
||||
}
|
||||
|
||||
if (typeof uriOrTemplate === 'string') {
|
||||
|
|
@ -625,6 +679,7 @@ export class McpServer {
|
|||
(config as BaseMetadata).title,
|
||||
uriOrTemplate,
|
||||
metadata,
|
||||
scopeChallenge,
|
||||
readCallback as ReadResourceCallback
|
||||
);
|
||||
if (cacheHint !== undefined) {
|
||||
|
|
@ -644,6 +699,7 @@ export class McpServer {
|
|||
(config as BaseMetadata).title,
|
||||
uriOrTemplate,
|
||||
metadata,
|
||||
scopeChallenge,
|
||||
readCallback as ReadResourceTemplateCallback
|
||||
);
|
||||
if (cacheHint !== undefined) {
|
||||
|
|
@ -661,6 +717,7 @@ export class McpServer {
|
|||
title: string | undefined,
|
||||
uri: string,
|
||||
metadata: ResourceMetadata | undefined,
|
||||
scopeChallenge: ScopeChallengeHandler | undefined,
|
||||
readCallback: ReadResourceCallback
|
||||
): RegisteredResource {
|
||||
const registeredResource: RegisteredResource = {
|
||||
|
|
@ -668,6 +725,7 @@ export class McpServer {
|
|||
title,
|
||||
metadata,
|
||||
readCallback,
|
||||
scopeChallenge,
|
||||
enabled: true,
|
||||
disable: () => registeredResource.update({ enabled: false }),
|
||||
enable: () => registeredResource.update({ enabled: true }),
|
||||
|
|
@ -681,6 +739,9 @@ export class McpServer {
|
|||
if (updates.title !== undefined) registeredResource.title = updates.title;
|
||||
if (updates.metadata !== undefined) registeredResource.metadata = updates.metadata;
|
||||
if (updates.callback !== undefined) registeredResource.readCallback = updates.callback;
|
||||
if (updates.scopeChallenge !== undefined) {
|
||||
registeredResource.scopeChallenge = updates.scopeChallenge === null ? undefined : updates.scopeChallenge;
|
||||
}
|
||||
if (updates.enabled !== undefined) registeredResource.enabled = updates.enabled;
|
||||
this.sendResourceListChanged();
|
||||
}
|
||||
|
|
@ -694,6 +755,7 @@ export class McpServer {
|
|||
title: string | undefined,
|
||||
template: ResourceTemplate,
|
||||
metadata: ResourceMetadata | undefined,
|
||||
scopeChallenge: ScopeChallengeHandler | undefined,
|
||||
readCallback: ReadResourceTemplateCallback
|
||||
): RegisteredResourceTemplate {
|
||||
const registeredResourceTemplate: RegisteredResourceTemplate = {
|
||||
|
|
@ -701,6 +763,7 @@ export class McpServer {
|
|||
title,
|
||||
metadata,
|
||||
readCallback,
|
||||
scopeChallenge,
|
||||
enabled: true,
|
||||
disable: () => registeredResourceTemplate.update({ enabled: false }),
|
||||
enable: () => registeredResourceTemplate.update({ enabled: true }),
|
||||
|
|
@ -714,6 +777,9 @@ export class McpServer {
|
|||
if (updates.template !== undefined) registeredResourceTemplate.resourceTemplate = updates.template;
|
||||
if (updates.metadata !== undefined) registeredResourceTemplate.metadata = updates.metadata;
|
||||
if (updates.callback !== undefined) registeredResourceTemplate.readCallback = updates.callback;
|
||||
if (updates.scopeChallenge !== undefined) {
|
||||
registeredResourceTemplate.scopeChallenge = updates.scopeChallenge === null ? undefined : updates.scopeChallenge;
|
||||
}
|
||||
if (updates.enabled !== undefined) registeredResourceTemplate.enabled = updates.enabled;
|
||||
this.sendResourceListChanged();
|
||||
}
|
||||
|
|
@ -737,6 +803,7 @@ export class McpServer {
|
|||
argsSchema: StandardSchemaWithJSON | undefined,
|
||||
callback: PromptCallback<StandardSchemaWithJSON | undefined>,
|
||||
icons: Icon[] | undefined,
|
||||
scopeChallenge: ScopeChallengeHandler | undefined,
|
||||
_meta: Record<string, unknown> | undefined
|
||||
): RegisteredPrompt {
|
||||
// Track current schema and callback for handler regeneration
|
||||
|
|
@ -748,6 +815,7 @@ export class McpServer {
|
|||
description,
|
||||
argsSchema,
|
||||
icons,
|
||||
scopeChallenge,
|
||||
_meta,
|
||||
handler: createPromptHandler(name, argsSchema, callback),
|
||||
enabled: true,
|
||||
|
|
@ -762,6 +830,9 @@ export class McpServer {
|
|||
if (updates.title !== undefined) registeredPrompt.title = updates.title;
|
||||
if (updates.description !== undefined) registeredPrompt.description = updates.description;
|
||||
if (updates.icons !== undefined) registeredPrompt.icons = updates.icons;
|
||||
if (updates.scopeChallenge !== undefined) {
|
||||
registeredPrompt.scopeChallenge = updates.scopeChallenge === null ? undefined : updates.scopeChallenge;
|
||||
}
|
||||
if (updates._meta !== undefined) registeredPrompt._meta = updates._meta;
|
||||
|
||||
// Track if we need to regenerate the handler
|
||||
|
|
@ -811,6 +882,7 @@ export class McpServer {
|
|||
annotations: ToolAnnotations | undefined,
|
||||
icons: Icon[] | undefined,
|
||||
execution: ToolExecution | undefined,
|
||||
scopeChallenge: ScopeChallengeHandler | undefined,
|
||||
_meta: Record<string, unknown> | undefined,
|
||||
handler: AnyToolHandler<StandardSchemaWithJSON | undefined>
|
||||
): RegisteredTool {
|
||||
|
|
@ -856,6 +928,7 @@ export class McpServer {
|
|||
annotations,
|
||||
icons,
|
||||
execution,
|
||||
scopeChallenge,
|
||||
_meta,
|
||||
handler: handler,
|
||||
executor: createToolExecutor(inputSchema, handler),
|
||||
|
|
@ -911,6 +984,9 @@ export class McpServer {
|
|||
}
|
||||
if (updates.annotations !== undefined) registeredTool.annotations = updates.annotations;
|
||||
if (updates.icons !== undefined) registeredTool.icons = updates.icons;
|
||||
if (updates.scopeChallenge !== undefined) {
|
||||
registeredTool.scopeChallenge = updates.scopeChallenge === null ? undefined : updates.scopeChallenge;
|
||||
}
|
||||
if (updates._meta !== undefined) registeredTool._meta = updates._meta;
|
||||
if (updates.enabled !== undefined) registeredTool.enabled = updates.enabled;
|
||||
this.sendToolListChanged();
|
||||
|
|
@ -959,6 +1035,8 @@ export class McpServer {
|
|||
outputSchema?: OutputArgs;
|
||||
annotations?: ToolAnnotations;
|
||||
icons?: Icon[];
|
||||
/** Determines whether this tool call needs an OAuth scope challenge. */
|
||||
scopeChallenge?: ScopeChallengeHandler;
|
||||
_meta?: Record<string, unknown>;
|
||||
},
|
||||
cb: ToolCallback<InputArgs>
|
||||
|
|
@ -973,6 +1051,7 @@ export class McpServer {
|
|||
outputSchema?: OutputArgs;
|
||||
annotations?: ToolAnnotations;
|
||||
icons?: Icon[];
|
||||
scopeChallenge?: ScopeChallengeHandler;
|
||||
_meta?: Record<string, unknown>;
|
||||
},
|
||||
cb: LegacyToolCallback<InputArgs>
|
||||
|
|
@ -986,6 +1065,7 @@ export class McpServer {
|
|||
outputSchema?: StandardSchemaWithJSON | ZodRawShape;
|
||||
annotations?: ToolAnnotations;
|
||||
icons?: Icon[];
|
||||
scopeChallenge?: ScopeChallengeHandler;
|
||||
_meta?: Record<string, unknown>;
|
||||
},
|
||||
cb: ToolCallback<StandardSchemaWithJSON | undefined> | LegacyToolCallback<ZodRawShape>
|
||||
|
|
@ -994,8 +1074,7 @@ export class McpServer {
|
|||
throw new Error(`Tool ${name} is already registered`);
|
||||
}
|
||||
|
||||
const { title, description, inputSchema, outputSchema, annotations, icons, _meta } = config;
|
||||
|
||||
const { title, description, inputSchema, outputSchema, annotations, icons, scopeChallenge, _meta } = config;
|
||||
return this._createRegisteredTool(
|
||||
name,
|
||||
title,
|
||||
|
|
@ -1005,6 +1084,7 @@ export class McpServer {
|
|||
annotations,
|
||||
icons,
|
||||
undefined,
|
||||
scopeChallenge,
|
||||
_meta,
|
||||
cb as ToolCallback<StandardSchemaWithJSON | undefined>
|
||||
);
|
||||
|
|
@ -1043,6 +1123,8 @@ export class McpServer {
|
|||
description?: string;
|
||||
argsSchema?: Args;
|
||||
icons?: Icon[];
|
||||
/** Determines whether this prompt retrieval needs an OAuth scope challenge. */
|
||||
scopeChallenge?: ScopeChallengeHandler;
|
||||
_meta?: Record<string, unknown>;
|
||||
},
|
||||
cb: PromptCallback<Args>
|
||||
|
|
@ -1055,6 +1137,7 @@ export class McpServer {
|
|||
description?: string;
|
||||
argsSchema?: Args;
|
||||
icons?: Icon[];
|
||||
scopeChallenge?: ScopeChallengeHandler;
|
||||
_meta?: Record<string, unknown>;
|
||||
},
|
||||
cb: LegacyPromptCallback<Args>
|
||||
|
|
@ -1066,6 +1149,7 @@ export class McpServer {
|
|||
description?: string;
|
||||
argsSchema?: StandardSchemaWithJSON | ZodRawShape;
|
||||
icons?: Icon[];
|
||||
scopeChallenge?: ScopeChallengeHandler;
|
||||
_meta?: Record<string, unknown>;
|
||||
},
|
||||
cb: PromptCallback<StandardSchemaWithJSON> | LegacyPromptCallback<ZodRawShape>
|
||||
|
|
@ -1074,7 +1158,7 @@ export class McpServer {
|
|||
throw new Error(`Prompt ${name} is already registered`);
|
||||
}
|
||||
|
||||
const { title, description, argsSchema, icons, _meta } = config;
|
||||
const { title, description, argsSchema, icons, scopeChallenge, _meta } = config;
|
||||
|
||||
const registeredPrompt = this._createRegisteredPrompt(
|
||||
name,
|
||||
|
|
@ -1083,6 +1167,7 @@ export class McpServer {
|
|||
normalizeRawShapeSchema(argsSchema),
|
||||
cb as PromptCallback<StandardSchemaWithJSON | undefined>,
|
||||
icons,
|
||||
scopeChallenge,
|
||||
_meta
|
||||
);
|
||||
|
||||
|
|
@ -1278,6 +1363,7 @@ export type RegisteredTool = {
|
|||
annotations?: ToolAnnotations;
|
||||
icons?: Icon[];
|
||||
execution?: ToolExecution;
|
||||
scopeChallenge?: ScopeChallengeHandler;
|
||||
_meta?: Record<string, unknown>;
|
||||
handler: AnyToolHandler<StandardSchemaWithJSON | undefined>;
|
||||
/** @hidden */
|
||||
|
|
@ -1293,6 +1379,7 @@ export type RegisteredTool = {
|
|||
outputSchema?: StandardSchemaWithJSON;
|
||||
annotations?: ToolAnnotations;
|
||||
icons?: Icon[];
|
||||
scopeChallenge?: ScopeChallengeHandler | null;
|
||||
_meta?: Record<string, unknown>;
|
||||
callback?: ToolCallback<StandardSchemaWithJSON>;
|
||||
enabled?: boolean;
|
||||
|
|
@ -1365,6 +1452,7 @@ export type RegisteredResource = {
|
|||
metadata?: ResourceMetadata;
|
||||
/** Cache hint applied to this resource's `resources/read` results on the 2026-07-28 revision. */
|
||||
cacheHint?: CacheHint;
|
||||
scopeChallenge?: ScopeChallengeHandler;
|
||||
readCallback: ReadResourceCallback;
|
||||
enabled: boolean;
|
||||
enable(): void;
|
||||
|
|
@ -1374,6 +1462,7 @@ export type RegisteredResource = {
|
|||
title?: string;
|
||||
uri?: string | null;
|
||||
metadata?: ResourceMetadata;
|
||||
scopeChallenge?: ScopeChallengeHandler | null;
|
||||
callback?: ReadResourceCallback;
|
||||
enabled?: boolean;
|
||||
}): void;
|
||||
|
|
@ -1395,6 +1484,7 @@ export type RegisteredResourceTemplate = {
|
|||
metadata?: ResourceMetadata;
|
||||
/** Cache hint applied to this template's `resources/read` results on the 2026-07-28 revision. */
|
||||
cacheHint?: CacheHint;
|
||||
scopeChallenge?: ScopeChallengeHandler;
|
||||
readCallback: ReadResourceTemplateCallback;
|
||||
enabled: boolean;
|
||||
enable(): void;
|
||||
|
|
@ -1404,6 +1494,7 @@ export type RegisteredResourceTemplate = {
|
|||
title?: string;
|
||||
template?: ResourceTemplate;
|
||||
metadata?: ResourceMetadata;
|
||||
scopeChallenge?: ScopeChallengeHandler | null;
|
||||
callback?: ReadResourceTemplateCallback;
|
||||
enabled?: boolean;
|
||||
}): void;
|
||||
|
|
@ -1433,6 +1524,7 @@ export type RegisteredPrompt = {
|
|||
description?: string;
|
||||
argsSchema?: StandardSchemaWithJSON;
|
||||
icons?: Icon[];
|
||||
scopeChallenge?: ScopeChallengeHandler;
|
||||
_meta?: Record<string, unknown>;
|
||||
/** @hidden */
|
||||
handler: PromptHandler;
|
||||
|
|
@ -1445,6 +1537,7 @@ export type RegisteredPrompt = {
|
|||
description?: string;
|
||||
argsSchema?: Args;
|
||||
icons?: Icon[];
|
||||
scopeChallenge?: ScopeChallengeHandler | null;
|
||||
_meta?: Record<string, unknown>;
|
||||
callback?: PromptCallback<Args>;
|
||||
enabled?: boolean;
|
||||
|
|
|
|||
|
|
@ -50,6 +50,12 @@ export interface BearerAuthOptions {
|
|||
*
|
||||
* Typically built with `getOAuthProtectedResourceMetadataUrl`, exported
|
||||
* from this package.
|
||||
*
|
||||
* When verification succeeds the value is also stamped onto the returned
|
||||
* {@link AuthInfo} (`authInfo.resourceMetadataUrl`, unless the verifier
|
||||
* already set one), so challenges built after authentication — such as
|
||||
* per-operation `insufficient_scope` scope challenges — advertise the
|
||||
* same document without being configured separately.
|
||||
*/
|
||||
resourceMetadataUrl?: string;
|
||||
}
|
||||
|
|
@ -62,18 +68,27 @@ function headerQuotedValue(value: string): string {
|
|||
return value.replaceAll(/[\\"]/g, String.raw`\$&`).replaceAll(/[^\u0020-\u007E]/g, ' ');
|
||||
}
|
||||
|
||||
function buildWwwAuthenticateHeader(
|
||||
/**
|
||||
* Build a `WWW-Authenticate: Bearer …` challenge header value (RFC 6750).
|
||||
*
|
||||
* The single formatter behind every challenge this package emits — the
|
||||
* bearer-auth 401/403 answers and the per-operation scope-challenge 403 — so
|
||||
* all challenges from one server agree on parameter order and quoting. Every
|
||||
* parameter value is emitted as an HTTP quoted-string with `\` and `"`
|
||||
* escaped and non-printable characters replaced.
|
||||
*/
|
||||
export function buildWwwAuthenticateHeader(
|
||||
errorCode: string,
|
||||
description: string,
|
||||
requiredScopes: string[],
|
||||
requiredScopes: readonly string[],
|
||||
resourceMetadataUrl: string | undefined
|
||||
): string {
|
||||
let header = `Bearer error="${headerQuotedValue(errorCode)}", error_description="${headerQuotedValue(description)}"`;
|
||||
if (requiredScopes.length > 0) {
|
||||
header += `, scope="${requiredScopes.join(' ')}"`;
|
||||
header += `, scope="${headerQuotedValue(requiredScopes.join(' '))}"`;
|
||||
}
|
||||
if (resourceMetadataUrl) {
|
||||
header += `, resource_metadata="${resourceMetadataUrl}"`;
|
||||
header += `, resource_metadata="${headerQuotedValue(resourceMetadataUrl)}"`;
|
||||
}
|
||||
return header;
|
||||
}
|
||||
|
|
@ -120,6 +135,14 @@ export async function verifyBearerToken(authorizationHeader: string | null | und
|
|||
throw new OAuthError(OAuthErrorCode.InvalidToken, 'Token has expired');
|
||||
}
|
||||
|
||||
// Hand the gate's discovery configuration inward with the verified token,
|
||||
// so challenges built after authentication (per-operation scope
|
||||
// challenges) advertise the same metadata document. A verifier-set value
|
||||
// wins over the gate's configuration.
|
||||
if (options.resourceMetadataUrl !== undefined && authInfo.resourceMetadataUrl === undefined) {
|
||||
return { ...authInfo, resourceMetadataUrl: options.resourceMetadataUrl };
|
||||
}
|
||||
|
||||
return authInfo;
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -89,7 +89,10 @@ export function buildOAuthProtectedResourceMetadata(options: AuthMetadataOptions
|
|||
* ```
|
||||
*/
|
||||
export function getOAuthProtectedResourceMetadataUrl(serverUrl: URL): string {
|
||||
return new URL(protectedResourceMetadataPath(serverUrl), serverUrl).href;
|
||||
const metadataUrl = new URL(serverUrl);
|
||||
metadataUrl.pathname = protectedResourceMetadataPath(serverUrl);
|
||||
metadataUrl.hash = '';
|
||||
return metadataUrl.href;
|
||||
}
|
||||
|
||||
/** The RFC 9728 path-aware well-known path for a resource URL. */
|
||||
|
|
|
|||
121
packages/server/src/server/scopeChallenge.ts
Normal file
121
packages/server/src/server/scopeChallenge.ts
Normal file
|
|
@ -0,0 +1,121 @@
|
|||
import type { AuthInfo, JSONRPCRequest } from '@modelcontextprotocol/core-internal';
|
||||
import { OAuthError, OAuthErrorCode } from '@modelcontextprotocol/core-internal';
|
||||
|
||||
import { bearerAuthChallengeResponse } from './middleware/bearerAuth';
|
||||
import { getOAuthProtectedResourceMetadataUrl } from './middleware/oauthMetadata';
|
||||
|
||||
/** OAuth scopes to request before handling an MCP request. */
|
||||
export interface ScopeChallenge {
|
||||
/** The exact, complete scope set to include in the challenge. Each scope must satisfy the OAuth `scope-token` grammar. */
|
||||
scopes: readonly [string, ...string[]];
|
||||
/** Optional human-readable detail satisfying the RFC 6750 `error-description` grammar. */
|
||||
errorDescription?: string;
|
||||
}
|
||||
|
||||
/** Determines whether an MCP request needs an OAuth scope challenge. */
|
||||
export type ScopeChallengeHandler = (context: {
|
||||
request: JSONRPCRequest;
|
||||
authInfo?: AuthInfo;
|
||||
}) => ScopeChallenge | undefined | Promise<ScopeChallenge | undefined>;
|
||||
|
||||
/** @internal */
|
||||
export function supportsScopeChallengeResolver(
|
||||
transport: unknown
|
||||
): transport is { setScopeChallengeResolver(resolver: ScopeChallengeHandler): void } {
|
||||
return (
|
||||
typeof transport === 'object' &&
|
||||
transport !== null &&
|
||||
'setScopeChallengeResolver' in transport &&
|
||||
typeof (transport as { setScopeChallengeResolver: unknown }).setScopeChallengeResolver === 'function'
|
||||
);
|
||||
}
|
||||
|
||||
function assertScope(scope: unknown, location: string): asserts scope is string {
|
||||
if (typeof scope !== 'string' || !/^[\u0021\u0023-\u005B\u005D-\u007E]+$/.test(scope)) {
|
||||
throw new TypeError(`${location} must satisfy the OAuth scope-token grammar`);
|
||||
}
|
||||
}
|
||||
|
||||
function validateScopeChallenge(challenge: ScopeChallenge): ScopeChallenge {
|
||||
if (challenge === null || typeof challenge !== 'object' || !Array.isArray(challenge.scopes) || challenge.scopes.length === 0) {
|
||||
throw new TypeError('scope challenge must contain at least one scope');
|
||||
}
|
||||
for (const [index, scope] of challenge.scopes.entries()) {
|
||||
assertScope(scope, `scope challenge scopes[${index}]`);
|
||||
}
|
||||
if (challenge.errorDescription !== undefined && typeof challenge.errorDescription !== 'string') {
|
||||
throw new TypeError('scope challenge errorDescription must be a string');
|
||||
}
|
||||
if (challenge.errorDescription !== undefined && !/^[\u0020-\u0021\u0023-\u005B\u005D-\u007E]+$/.test(challenge.errorDescription)) {
|
||||
throw new TypeError('scope challenge errorDescription must satisfy the RFC 6750 error-description grammar');
|
||||
}
|
||||
return challenge;
|
||||
}
|
||||
|
||||
/**
|
||||
* Creates a handler that requires every supplied scope exactly.
|
||||
*
|
||||
* Requests without authentication are left to the server's authentication gate.
|
||||
*/
|
||||
export function requireScopes(...scopes: readonly [string, ...string[]]): ScopeChallengeHandler {
|
||||
if (scopes.length === 0) {
|
||||
throw new TypeError('requireScopes must contain at least one scope');
|
||||
}
|
||||
for (const [index, scope] of scopes.entries()) {
|
||||
assertScope(scope, `requireScopes scope[${index}]`);
|
||||
}
|
||||
const requiredScopes = [...scopes] as [string, ...string[]];
|
||||
return ({ authInfo }) => {
|
||||
if (authInfo === undefined) return;
|
||||
const activeScopes = new Set(authInfo.scopes);
|
||||
if (requiredScopes.every(scope => activeScopes.has(scope))) return;
|
||||
return { scopes: requiredScopes };
|
||||
};
|
||||
}
|
||||
|
||||
/** @internal */
|
||||
export async function findScopeChallenge(
|
||||
requests: readonly JSONRPCRequest[],
|
||||
authInfo: AuthInfo | undefined,
|
||||
resolve: ScopeChallengeHandler
|
||||
): Promise<ScopeChallenge | undefined> {
|
||||
for (const request of requests) {
|
||||
const challenge = await resolve({ request, ...(authInfo !== undefined && { authInfo }) });
|
||||
if (challenge !== undefined) {
|
||||
return validateScopeChallenge(challenge);
|
||||
}
|
||||
}
|
||||
return undefined;
|
||||
}
|
||||
|
||||
/**
|
||||
* The RFC 9728 Protected Resource Metadata URL to advertise on a scope
|
||||
* challenge, derived from the verified {@link AuthInfo}: the URL the
|
||||
* authentication gate stamped (`authInfo.resourceMetadataUrl`, set by the
|
||||
* bearer-auth helpers from their `resourceMetadataUrl` option), falling back
|
||||
* to the well-known location for an HTTP(S) RFC 8707 `resource` identifier, or
|
||||
* `undefined` when neither is available (the `resource_metadata` parameter is
|
||||
* then omitted, matching the bearer-auth challenges).
|
||||
*
|
||||
* @internal
|
||||
*/
|
||||
export function scopeChallengeResourceMetadataUrl(authInfo: AuthInfo | undefined): string | undefined {
|
||||
if (authInfo?.resourceMetadataUrl !== undefined) {
|
||||
return authInfo.resourceMetadataUrl;
|
||||
}
|
||||
if (authInfo?.resource?.protocol === 'https:' || authInfo?.resource?.protocol === 'http:') {
|
||||
return getOAuthProtectedResourceMetadataUrl(authInfo.resource);
|
||||
}
|
||||
return undefined;
|
||||
}
|
||||
|
||||
/** @internal */
|
||||
export function createScopeChallengeResponse(challenge: ScopeChallenge, resourceMetadataUrl: string | undefined): Response {
|
||||
return bearerAuthChallengeResponse(
|
||||
new OAuthError(OAuthErrorCode.InsufficientScope, challenge.errorDescription ?? 'Insufficient scope'),
|
||||
{
|
||||
requiredScopes: [...challenge.scopes],
|
||||
resourceMetadataUrl
|
||||
}
|
||||
);
|
||||
}
|
||||
|
|
@ -7,7 +7,7 @@
|
|||
* For Node.js Express/HTTP compatibility, use {@linkcode @modelcontextprotocol/node!NodeStreamableHTTPServerTransport | NodeStreamableHTTPServerTransport} which wraps this transport.
|
||||
*/
|
||||
|
||||
import type { AuthInfo, JSONRPCMessage, MessageExtraInfo, RequestId, Transport } from '@modelcontextprotocol/core-internal';
|
||||
import type { AuthInfo, JSONRPCMessage, JSONRPCRequest, MessageExtraInfo, RequestId, Transport } from '@modelcontextprotocol/core-internal';
|
||||
import {
|
||||
DEFAULT_NEGOTIATED_PROTOCOL_VERSION,
|
||||
isInitializeRequest,
|
||||
|
|
@ -20,6 +20,8 @@ import {
|
|||
} from '@modelcontextprotocol/core-internal';
|
||||
|
||||
import { MAX_BATCH_SIZE, readRequestBody, requestBodyTooLargeMessage, resolveMaxRequestBodySize } from './requestBody';
|
||||
import type { ScopeChallengeHandler } from './scopeChallenge';
|
||||
import { createScopeChallengeResponse, findScopeChallenge, scopeChallengeResourceMetadataUrl } from './scopeChallenge';
|
||||
import { armSseKeepAlive, DEFAULT_SSE_KEEP_ALIVE_MS } from './sseKeepAlive';
|
||||
|
||||
export type StreamId = string;
|
||||
|
|
@ -267,6 +269,7 @@ export class WebStandardStreamableHTTPServerTransport implements Transport {
|
|||
private _supportedProtocolVersions: string[];
|
||||
private _keepAliveMs: number;
|
||||
private _maxRequestBodySize: number;
|
||||
private _scopeChallengeResolver?: ScopeChallengeHandler;
|
||||
|
||||
sessionId?: string;
|
||||
onclose?: () => void;
|
||||
|
|
@ -304,6 +307,11 @@ export class WebStandardStreamableHTTPServerTransport implements Transport {
|
|||
return timer;
|
||||
}
|
||||
|
||||
/** Sets the scope challenge resolver for parsed JSON-RPC requests. */
|
||||
setScopeChallengeResolver(resolver: ScopeChallengeHandler): void {
|
||||
this._scopeChallengeResolver = resolver;
|
||||
}
|
||||
|
||||
/**
|
||||
* Starts the transport. This is required by the {@linkcode Transport} interface but is a no-op
|
||||
* for the Streamable HTTP transport as connections are managed per-request.
|
||||
|
|
@ -352,6 +360,19 @@ export class WebStandardStreamableHTTPServerTransport implements Transport {
|
|||
);
|
||||
}
|
||||
|
||||
private async _checkScopeChallenge(messages: JSONRPCMessage[], authInfo?: AuthInfo): Promise<Response | undefined> {
|
||||
// Active whenever a connected McpServer supplied a resolver (it
|
||||
// resolves per-primitive scopeChallenge callbacks); the challenge's
|
||||
// resource_metadata parameter is derived from the verified AuthInfo
|
||||
// and omitted when unavailable.
|
||||
if (!this._scopeChallengeResolver) {
|
||||
return undefined;
|
||||
}
|
||||
const requests: JSONRPCRequest[] = messages.filter(message => isJSONRPCRequest(message));
|
||||
const challenge = await findScopeChallenge(requests, authInfo, this._scopeChallengeResolver);
|
||||
return challenge === undefined ? undefined : createScopeChallengeResponse(challenge, scopeChallengeResourceMetadataUrl(authInfo));
|
||||
}
|
||||
|
||||
/**
|
||||
* Validates request headers for DNS rebinding protection.
|
||||
* @returns Error response if validation fails, `undefined` if validation passes.
|
||||
|
|
@ -856,6 +877,18 @@ export class WebStandardStreamableHTTPServerTransport implements Transport {
|
|||
return this.createJsonErrorResponse(404, -32_001, 'Session not found');
|
||||
}
|
||||
|
||||
// Check before opening SSE so an insufficient token can receive HTTP 403.
|
||||
let scopeChallengeResponse: Response | undefined;
|
||||
try {
|
||||
scopeChallengeResponse = await this._checkScopeChallenge(messages, options?.authInfo);
|
||||
} catch (error) {
|
||||
this.onerror?.(error as Error);
|
||||
return this.createJsonErrorResponse(500, -32_603, 'Internal server error');
|
||||
}
|
||||
if (scopeChallengeResponse) {
|
||||
return scopeChallengeResponse;
|
||||
}
|
||||
|
||||
// check if it contains requests
|
||||
const hasRequests = messages.some(element => isJSONRPCRequest(element));
|
||||
|
||||
|
|
|
|||
|
|
@ -82,6 +82,12 @@ describe('getOAuthProtectedResourceMetadataUrl', () => {
|
|||
'https://api.example.com/.well-known/oauth-protected-resource'
|
||||
);
|
||||
});
|
||||
|
||||
it('preserves the resource identifier query', () => {
|
||||
expect(getOAuthProtectedResourceMetadataUrl(new URL('https://api.example.com/mcp?tenant=acme'))).toBe(
|
||||
'https://api.example.com/.well-known/oauth-protected-resource/mcp?tenant=acme'
|
||||
);
|
||||
});
|
||||
});
|
||||
|
||||
describe('oauthMetadataResponse', () => {
|
||||
|
|
|
|||
292
packages/server/test/server/scopeChallenge.test.ts
Normal file
292
packages/server/test/server/scopeChallenge.test.ts
Normal file
|
|
@ -0,0 +1,292 @@
|
|||
import { randomUUID } from 'node:crypto';
|
||||
|
||||
import type { AuthInfo, JSONRPCMessage, JSONRPCRequest } from '@modelcontextprotocol/core-internal';
|
||||
import { describe, expect, it, vi } from 'vitest';
|
||||
import * as z from 'zod/v4';
|
||||
|
||||
import { McpServer } from '../../src/server/mcp';
|
||||
import type { ScopeChallengeHandler } from '../../src/server/scopeChallenge';
|
||||
import { createScopeChallengeResponse, requireScopes } from '../../src/server/scopeChallenge';
|
||||
import { WebStandardStreamableHTTPServerTransport } from '../../src/server/streamableHttp';
|
||||
|
||||
const RESOURCE_METADATA_URL = 'https://auth.example.com/.well-known/oauth-protected-resource';
|
||||
|
||||
function toolCall(name = 'operate', args: Record<string, unknown> = {}, id: string | number = 'call-1'): JSONRPCRequest {
|
||||
return {
|
||||
jsonrpc: '2.0',
|
||||
method: 'tools/call',
|
||||
params: { name, arguments: args },
|
||||
id
|
||||
};
|
||||
}
|
||||
|
||||
function auth(scopes: string[], resourceMetadataUrl?: string): AuthInfo {
|
||||
return { token: 'token', clientId: 'client', scopes, ...(resourceMetadataUrl !== undefined && { resourceMetadataUrl }) };
|
||||
}
|
||||
|
||||
describe('requireScopes', () => {
|
||||
it('requires every supplied scope using exact matches', async () => {
|
||||
const handler = requireScopes('repo:read', 'org:read');
|
||||
const request = toolCall();
|
||||
|
||||
expect(await handler({ request, authInfo: auth(['repo:read']) })).toEqual({
|
||||
scopes: ['repo:read', 'org:read']
|
||||
});
|
||||
expect(await handler({ request, authInfo: auth(['repo:read', 'org:read']) })).toBeUndefined();
|
||||
expect(await handler({ request, authInfo: auth(['repo:read:all', 'org:read']) })).toEqual({
|
||||
scopes: ['repo:read', 'org:read']
|
||||
});
|
||||
});
|
||||
|
||||
it('leaves unauthenticated requests to the authentication gate', async () => {
|
||||
expect(await requireScopes('repo:read')({ request: toolCall() })).toBeUndefined();
|
||||
});
|
||||
|
||||
it('rejects invalid static scope declarations', () => {
|
||||
expect(() => (requireScopes as (...scopes: string[]) => ScopeChallengeHandler)()).toThrow('at least one');
|
||||
for (const scope of ['repo read', 'repo"read', String.raw`repo\read`, 'repo:read🚀']) {
|
||||
expect(() => requireScopes(scope)).toThrow('scope-token grammar');
|
||||
}
|
||||
});
|
||||
});
|
||||
|
||||
describe('createScopeChallengeResponse', () => {
|
||||
it('uses an OAuth error body rather than a JSON-RPC Invalid Request error', async () => {
|
||||
const response = createScopeChallengeResponse(
|
||||
{ scopes: ['repo:write'], errorDescription: 'Write access is required' },
|
||||
RESOURCE_METADATA_URL
|
||||
);
|
||||
|
||||
expect(response.status).toBe(403);
|
||||
expect(response.headers.get('WWW-Authenticate')).toBe(
|
||||
'Bearer error="insufficient_scope", error_description="Write access is required", scope="repo:write"' +
|
||||
`, resource_metadata="${RESOURCE_METADATA_URL}"`
|
||||
);
|
||||
expect(await response.json()).toEqual({
|
||||
error: 'insufficient_scope',
|
||||
error_description: 'Write access is required'
|
||||
});
|
||||
});
|
||||
});
|
||||
|
||||
interface LegacyHarness {
|
||||
server: McpServer;
|
||||
transport: WebStandardStreamableHTTPServerTransport;
|
||||
calls: ReturnType<typeof vi.fn>;
|
||||
}
|
||||
|
||||
async function createLegacyHarness(scopeChallenge: ScopeChallengeHandler): Promise<LegacyHarness> {
|
||||
const calls = vi.fn();
|
||||
const server = new McpServer({ name: 'scope-test', version: '1.0.0' });
|
||||
server.registerTool(
|
||||
'operate',
|
||||
{
|
||||
inputSchema: z.object({ mode: z.string().optional() }),
|
||||
scopeChallenge
|
||||
},
|
||||
async args => {
|
||||
calls(args);
|
||||
return { content: [{ type: 'text', text: 'ok' }] };
|
||||
}
|
||||
);
|
||||
server.registerTool('public', { inputSchema: z.object({}) }, async () => ({ content: [{ type: 'text', text: 'public' }] }));
|
||||
const transport = new WebStandardStreamableHTTPServerTransport({
|
||||
sessionIdGenerator: () => randomUUID(),
|
||||
enableJsonResponse: true
|
||||
});
|
||||
await server.connect(transport);
|
||||
return { server, transport, calls };
|
||||
}
|
||||
|
||||
async function initializeLegacy(transport: WebStandardStreamableHTTPServerTransport): Promise<string> {
|
||||
const request = new Request('http://localhost/mcp', {
|
||||
method: 'POST',
|
||||
headers: { 'Content-Type': 'application/json', Accept: 'application/json, text/event-stream' },
|
||||
body: JSON.stringify({
|
||||
jsonrpc: '2.0',
|
||||
method: 'initialize',
|
||||
params: {
|
||||
clientInfo: { name: 'test-client', version: '1.0' },
|
||||
protocolVersion: '2025-11-25',
|
||||
capabilities: {}
|
||||
},
|
||||
id: 'init'
|
||||
})
|
||||
});
|
||||
const response = await transport.handleRequest(request);
|
||||
return response.headers.get('mcp-session-id')!;
|
||||
}
|
||||
|
||||
function legacyRequest(body: JSONRPCMessage | JSONRPCMessage[], sessionId: string): Request {
|
||||
return new Request('http://localhost/mcp', {
|
||||
method: 'POST',
|
||||
headers: {
|
||||
'Content-Type': 'application/json',
|
||||
Accept: 'application/json, text/event-stream',
|
||||
'mcp-session-id': sessionId,
|
||||
'mcp-protocol-version': '2025-11-25'
|
||||
},
|
||||
body: JSON.stringify(body)
|
||||
});
|
||||
}
|
||||
|
||||
describe('legacy Streamable HTTP scope preflight', () => {
|
||||
it('awaits the callback with the full request and auth info before dispatch', async () => {
|
||||
const callback = vi.fn<ScopeChallengeHandler>(async ({ request, authInfo }) => {
|
||||
await Promise.resolve();
|
||||
const mode = (request.params as { arguments?: { mode?: unknown } }).arguments?.mode;
|
||||
return mode === 'write' && !authInfo?.scopes.includes('repo:write')
|
||||
? { scopes: ['repo:write'], errorDescription: 'Write access is required' }
|
||||
: undefined;
|
||||
});
|
||||
const harness = await createLegacyHarness(callback);
|
||||
const sessionId = await initializeLegacy(harness.transport);
|
||||
const response = await harness.transport.handleRequest(
|
||||
legacyRequest(toolCall('operate', { mode: 'write', nested: { value: 42 } }), sessionId),
|
||||
{ authInfo: auth(['repo:read'], RESOURCE_METADATA_URL) }
|
||||
);
|
||||
|
||||
expect(response.status).toBe(403);
|
||||
const challenge = response.headers.get('WWW-Authenticate');
|
||||
expect(challenge).toContain('scope="repo:write"');
|
||||
expect(challenge).toContain(`resource_metadata="${RESOURCE_METADATA_URL}"`);
|
||||
expect(challenge).toContain('error_description="Write access is required"');
|
||||
expect(callback).toHaveBeenCalledWith({
|
||||
request: expect.objectContaining({
|
||||
method: 'tools/call',
|
||||
params: { name: 'operate', arguments: { mode: 'write', nested: { value: 42 } } }
|
||||
}),
|
||||
authInfo: auth(['repo:read'], RESOURCE_METADATA_URL)
|
||||
});
|
||||
expect(harness.calls).not.toHaveBeenCalled();
|
||||
await harness.transport.close();
|
||||
});
|
||||
|
||||
it('rejects a whole batch on the first challenge before any member executes', async () => {
|
||||
const callback = vi.fn<ScopeChallengeHandler>(requireScopes('repo:read'));
|
||||
const harness = await createLegacyHarness(callback);
|
||||
const sessionId = await initializeLegacy(harness.transport);
|
||||
const response = await harness.transport.handleRequest(
|
||||
legacyRequest(
|
||||
[
|
||||
{ jsonrpc: '2.0', method: 'tools/call', params: { name: 'public', arguments: {} }, id: 'public' },
|
||||
toolCall('operate', {}, 'scoped')
|
||||
],
|
||||
sessionId
|
||||
),
|
||||
{ authInfo: auth([]) }
|
||||
);
|
||||
|
||||
expect(response.status).toBe(403);
|
||||
expect(await response.json()).toEqual({
|
||||
error: 'insufficient_scope',
|
||||
error_description: 'Insufficient scope'
|
||||
});
|
||||
expect(callback).toHaveBeenCalledTimes(1);
|
||||
expect(harness.calls).not.toHaveBeenCalled();
|
||||
await harness.transport.close();
|
||||
});
|
||||
|
||||
it('fails closed when a callback rejects or returns invalid scopes', async () => {
|
||||
for (const callback of [
|
||||
vi.fn<ScopeChallengeHandler>(async () => {
|
||||
throw new Error('scope lookup failed');
|
||||
}),
|
||||
vi.fn<ScopeChallengeHandler>(() => ({ scopes: [] as unknown as [string, ...string[]] })),
|
||||
vi.fn<ScopeChallengeHandler>(() => ({ scopes: ['repo:read🚀'] })),
|
||||
vi.fn<ScopeChallengeHandler>(() => ({ scopes: ['repo:read'], errorDescription: '' })),
|
||||
vi.fn<ScopeChallengeHandler>(() => ({ scopes: ['repo:read'], errorDescription: 'Need "repo:read"' })),
|
||||
vi.fn<ScopeChallengeHandler>(() => ({ scopes: ['repo:read'], errorDescription: String.raw`Need repo\read` })),
|
||||
vi.fn<ScopeChallengeHandler>(() => ({ scopes: ['repo:read'], errorDescription: 'Need 🚀 access' }))
|
||||
]) {
|
||||
const harness = await createLegacyHarness(callback);
|
||||
const onerror = vi.fn();
|
||||
harness.transport.onerror = onerror;
|
||||
const sessionId = await initializeLegacy(harness.transport);
|
||||
const response = await harness.transport.handleRequest(legacyRequest(toolCall(), sessionId), {
|
||||
authInfo: auth([])
|
||||
});
|
||||
|
||||
expect(response.status).toBe(500);
|
||||
expect(harness.calls).not.toHaveBeenCalled();
|
||||
expect(onerror).toHaveBeenCalledOnce();
|
||||
await harness.transport.close();
|
||||
}
|
||||
});
|
||||
|
||||
it('tracks callback changes across the registered-tool lifecycle', async () => {
|
||||
const server = new McpServer({ name: 'scope-test', version: '1.0.0' });
|
||||
const initial = requireScopes('repo:read');
|
||||
const updated = requireScopes('repo:write');
|
||||
const tool = server.registerTool('mutable', { scopeChallenge: initial }, async () => ({ content: [] }));
|
||||
|
||||
expect(await server.resolveScopeChallenge({ request: toolCall('mutable'), authInfo: auth([]) })).toEqual({
|
||||
scopes: ['repo:read']
|
||||
});
|
||||
tool.disable();
|
||||
expect(await server.resolveScopeChallenge({ request: toolCall('mutable'), authInfo: auth([]) })).toBeUndefined();
|
||||
tool.enable();
|
||||
tool.update({ scopeChallenge: updated });
|
||||
expect(await server.resolveScopeChallenge({ request: toolCall('mutable'), authInfo: auth([]) })).toEqual({
|
||||
scopes: ['repo:write']
|
||||
});
|
||||
tool.update({ scopeChallenge: null });
|
||||
expect(await server.resolveScopeChallenge({ request: toolCall('mutable'), authInfo: auth([]) })).toBeUndefined();
|
||||
tool.remove();
|
||||
expect(await server.resolveScopeChallenge({ request: toolCall('mutable'), authInfo: auth([]) })).toBeUndefined();
|
||||
});
|
||||
|
||||
it('serializes an optional challenge description', async () => {
|
||||
const harness = await createLegacyHarness(() => ({
|
||||
scopes: ['repo:read'],
|
||||
errorDescription: 'Needs repo:read, path/to/thing'
|
||||
}));
|
||||
const sessionId = await initializeLegacy(harness.transport);
|
||||
const response = await harness.transport.handleRequest(legacyRequest(toolCall(), sessionId), {
|
||||
authInfo: auth([])
|
||||
});
|
||||
|
||||
expect(response.headers.get('WWW-Authenticate')).toContain('error_description="Needs repo:read, path/to/thing"');
|
||||
await harness.transport.close();
|
||||
});
|
||||
|
||||
it('omits resource_metadata when the auth info carries no metadata URL', async () => {
|
||||
const harness = await createLegacyHarness(requireScopes('repo:write'));
|
||||
const sessionId = await initializeLegacy(harness.transport);
|
||||
const response = await harness.transport.handleRequest(legacyRequest(toolCall(), sessionId), {
|
||||
authInfo: auth(['repo:read'])
|
||||
});
|
||||
|
||||
expect(response.status).toBe(403);
|
||||
const challenge = response.headers.get('WWW-Authenticate');
|
||||
expect(challenge).toContain('scope="repo:write"');
|
||||
expect(challenge).not.toContain('resource_metadata');
|
||||
await harness.transport.close();
|
||||
});
|
||||
|
||||
it('derives resource_metadata from the RFC 8707 resource identifier when no URL was stamped', async () => {
|
||||
const harness = await createLegacyHarness(requireScopes('repo:write'));
|
||||
const sessionId = await initializeLegacy(harness.transport);
|
||||
const response = await harness.transport.handleRequest(legacyRequest(toolCall(), sessionId), {
|
||||
authInfo: { ...auth(['repo:read']), resource: new URL('https://api.example.com/mcp?tenant=acme') }
|
||||
});
|
||||
|
||||
expect(response.status).toBe(403);
|
||||
expect(response.headers.get('WWW-Authenticate')).toContain(
|
||||
'resource_metadata="https://api.example.com/.well-known/oauth-protected-resource/mcp?tenant=acme"'
|
||||
);
|
||||
await harness.transport.close();
|
||||
});
|
||||
|
||||
it('omits resource_metadata when an abstract RFC 8707 resource identifier cannot locate an RFC 9728 document', async () => {
|
||||
const harness = await createLegacyHarness(requireScopes('repo:write'));
|
||||
const sessionId = await initializeLegacy(harness.transport);
|
||||
const response = await harness.transport.handleRequest(legacyRequest(toolCall(), sessionId), {
|
||||
authInfo: { ...auth(['repo:read']), resource: new URL('urn:example:mcp') }
|
||||
});
|
||||
|
||||
expect(response.status).toBe(403);
|
||||
expect(response.headers.get('WWW-Authenticate')).not.toContain('resource_metadata');
|
||||
await harness.transport.close();
|
||||
});
|
||||
});
|
||||
272
packages/server/test/server/scopeChallengeModern.test.ts
Normal file
272
packages/server/test/server/scopeChallengeModern.test.ts
Normal file
|
|
@ -0,0 +1,272 @@
|
|||
import type { AuthInfo, JSONRPCRequest } from '@modelcontextprotocol/core-internal';
|
||||
import { CLIENT_CAPABILITIES_META_KEY, CLIENT_INFO_META_KEY, PROTOCOL_VERSION_META_KEY } from '@modelcontextprotocol/core-internal';
|
||||
import { describe, expect, it, vi } from 'vitest';
|
||||
import * as z from 'zod/v4';
|
||||
|
||||
import { fromJsonSchema } from '../../src/fromJsonSchema';
|
||||
import { createMcpHandler } from '../../src/server/createMcpHandler';
|
||||
import { McpServer } from '../../src/server/mcp';
|
||||
import { requireBearerAuth } from '../../src/server/middleware/bearerAuth';
|
||||
import type { ScopeChallengeHandler } from '../../src/server/scopeChallenge';
|
||||
import { requireScopes } from '../../src/server/scopeChallenge';
|
||||
|
||||
const MODERN = '2026-07-28';
|
||||
const RESOURCE_METADATA_URL = 'https://auth.example.com/.well-known/oauth-protected-resource';
|
||||
const ENVELOPE = {
|
||||
[PROTOCOL_VERSION_META_KEY]: MODERN,
|
||||
[CLIENT_INFO_META_KEY]: { name: 'scope-client', version: '1.0.0' },
|
||||
[CLIENT_CAPABILITIES_META_KEY]: {}
|
||||
};
|
||||
|
||||
function request(method: string, params: Record<string, unknown>, extraHeaders: Record<string, string> = {}): Request {
|
||||
const candidateName = method === 'resources/read' ? params.uri : params.name;
|
||||
const name = typeof candidateName === 'string' ? candidateName : undefined;
|
||||
return new Request('http://localhost/mcp', {
|
||||
method: 'POST',
|
||||
headers: {
|
||||
'Content-Type': 'application/json',
|
||||
Accept: 'application/json, text/event-stream',
|
||||
'mcp-protocol-version': MODERN,
|
||||
'mcp-method': method,
|
||||
...(name !== undefined && { 'mcp-name': name }),
|
||||
...extraHeaders
|
||||
},
|
||||
body: JSON.stringify({ jsonrpc: '2.0', id: 7, method, params: { ...params, _meta: ENVELOPE } })
|
||||
});
|
||||
}
|
||||
|
||||
function call(name: string, args: Record<string, unknown>, headers?: Record<string, string>): Request {
|
||||
return request('tools/call', { name, arguments: args }, headers);
|
||||
}
|
||||
|
||||
function auth(scopes: string[], resourceMetadataUrl?: string): AuthInfo {
|
||||
return { token: 'token', clientId: 'client', scopes, ...(resourceMetadataUrl !== undefined && { resourceMetadataUrl }) };
|
||||
}
|
||||
|
||||
function createHandler(scopeChallenge: ScopeChallengeHandler, onCall = vi.fn(), responseMode?: 'json' | 'sse') {
|
||||
// No handler-level scope-challenge configuration exists: registering the
|
||||
// callback on the primitive is all it takes to arm the preflight.
|
||||
return createMcpHandler(
|
||||
() => {
|
||||
const server = new McpServer({ name: 'modern-scope', version: '1.0.0' });
|
||||
server.registerTool(
|
||||
'operate',
|
||||
{
|
||||
inputSchema: z.object({ mode: z.string().optional(), secret: z.string().optional() }),
|
||||
scopeChallenge
|
||||
},
|
||||
async args => {
|
||||
onCall(args);
|
||||
return { content: [{ type: 'text', text: 'ok' }] };
|
||||
}
|
||||
);
|
||||
return server;
|
||||
},
|
||||
{ ...(responseMode !== undefined && { responseMode }) }
|
||||
);
|
||||
}
|
||||
|
||||
describe('createMcpHandler scope preflight', () => {
|
||||
it('passes the full parsed request and auth info to an async callback before invocation', async () => {
|
||||
const callback = vi.fn<ScopeChallengeHandler>(async ({ request, authInfo }) => {
|
||||
const args = (request.params as { arguments: { mode?: string } }).arguments;
|
||||
return args.mode === 'write' && !authInfo?.scopes.includes('repo:write') ? { scopes: ['repo:write'] } : undefined;
|
||||
});
|
||||
const onCall = vi.fn();
|
||||
const handler = createHandler(callback, onCall);
|
||||
const incoming = call('operate', { mode: 'write', secret: 'high-cardinality-value' });
|
||||
|
||||
expect([...incoming.headers.keys()]).not.toContain('mcp-param-secret');
|
||||
const response = await handler.fetch(incoming, { authInfo: auth(['repo:read']) });
|
||||
|
||||
expect(response.status).toBe(403);
|
||||
// The bearer-auth formatter builds the header: error, then the default
|
||||
// description, then the scope set; resource_metadata is omitted when
|
||||
// the auth info carries no metadata URL.
|
||||
expect(response.headers.get('WWW-Authenticate')).toBe(
|
||||
'Bearer error="insufficient_scope", error_description="Insufficient scope", scope="repo:write"'
|
||||
);
|
||||
expect(await response.json()).toEqual({
|
||||
error: 'insufficient_scope',
|
||||
error_description: 'Insufficient scope'
|
||||
});
|
||||
expect(callback).toHaveBeenCalledWith({
|
||||
request: expect.objectContaining({
|
||||
method: 'tools/call',
|
||||
params: expect.objectContaining({
|
||||
arguments: { mode: 'write', secret: 'high-cardinality-value' }
|
||||
})
|
||||
}),
|
||||
authInfo: auth(['repo:read'])
|
||||
});
|
||||
expect(onCall).not.toHaveBeenCalled();
|
||||
});
|
||||
|
||||
it('runs the callback after Mcp-Param header/body parity checks', async () => {
|
||||
const callback = vi.fn<ScopeChallengeHandler>(() => ({ scopes: ['route:read'] }));
|
||||
const routeSchema = fromJsonSchema<{ region: string }>({
|
||||
type: 'object',
|
||||
properties: { region: { type: 'string', 'x-mcp-header': 'Region' } as Record<string, unknown> },
|
||||
required: ['region']
|
||||
});
|
||||
const handler = createMcpHandler(() => {
|
||||
const server = new McpServer({ name: 'modern-scope', version: '1.0.0' });
|
||||
server.registerTool('route', { inputSchema: routeSchema, scopeChallenge: callback }, async () => ({
|
||||
content: [{ type: 'text', text: 'ok' }]
|
||||
}));
|
||||
return server;
|
||||
});
|
||||
|
||||
const response = await handler.fetch(call('route', { region: 'us-west1' }, { 'Mcp-Param-Region': 'eu' }), {
|
||||
authInfo: auth([])
|
||||
});
|
||||
|
||||
expect(response.status).toBe(400);
|
||||
expect(((await response.json()) as { error: { code: number } }).error.code).toBe(-32_020);
|
||||
expect(callback).not.toHaveBeenCalled();
|
||||
});
|
||||
|
||||
it('keeps challenged tools discoverable and uses exact static all-of checks', async () => {
|
||||
const handler = createMcpHandler(() => {
|
||||
const server = new McpServer({ name: 'modern-scope', version: '1.0.0' });
|
||||
server.registerTool('scoped', { scopeChallenge: requireScopes('repo:read', 'org:read') }, async () => ({
|
||||
content: []
|
||||
}));
|
||||
return server;
|
||||
});
|
||||
|
||||
const listResponse = await handler.fetch(request('tools/list', {}), { authInfo: auth([]) });
|
||||
expect(listResponse.status).toBe(200);
|
||||
const body = (await listResponse.json()) as { result: { tools: Array<{ name: string }> } };
|
||||
expect(body.result.tools.map(tool => tool.name)).toContain('scoped');
|
||||
|
||||
const challengeResponse = await handler.fetch(call('scoped', {}), { authInfo: auth(['repo:read']) });
|
||||
expect(challengeResponse.status).toBe(403);
|
||||
expect(challengeResponse.headers.get('WWW-Authenticate')).toContain('scope="repo:read org:read"');
|
||||
});
|
||||
|
||||
it('fails closed before SSE when the callback throws', async () => {
|
||||
const onCall = vi.fn();
|
||||
const handler = createHandler(
|
||||
async () => {
|
||||
throw new Error('scope lookup failed');
|
||||
},
|
||||
onCall,
|
||||
'sse'
|
||||
);
|
||||
|
||||
const response = await handler.fetch(call('operate', {}), { authInfo: auth([]) });
|
||||
|
||||
expect(response.status).toBe(500);
|
||||
expect(response.headers.get('content-type')).toContain('application/json');
|
||||
expect(onCall).not.toHaveBeenCalled();
|
||||
});
|
||||
|
||||
it('continues when the callback returns undefined', async () => {
|
||||
const callback = vi.fn<ScopeChallengeHandler>(({ request }: { request: JSONRPCRequest }) => {
|
||||
const mode = (request.params as { arguments?: { mode?: unknown } }).arguments?.mode;
|
||||
return mode === 'write' ? { scopes: ['repo:write'] } : undefined;
|
||||
});
|
||||
const onCall = vi.fn();
|
||||
const handler = createHandler(callback, onCall);
|
||||
|
||||
const response = await handler.fetch(call('operate', { mode: 'read' }), { authInfo: auth([]) });
|
||||
|
||||
expect(response.status).toBe(200);
|
||||
expect(onCall).toHaveBeenCalledOnce();
|
||||
});
|
||||
|
||||
it('challenges resource and prompt primitives before dispatch', async () => {
|
||||
const onRead = vi.fn(async (uri: URL) => ({ contents: [{ uri: uri.href, text: 'secret' }] }));
|
||||
const onPrompt = vi.fn(async () => ({
|
||||
messages: [{ role: 'user' as const, content: { type: 'text' as const, text: 'secret' } }]
|
||||
}));
|
||||
const handler = createMcpHandler(() => {
|
||||
const server = new McpServer({ name: 'modern-scope', version: '1.0.0' });
|
||||
server.registerResource('config', 'config://settings', { scopeChallenge: requireScopes('config:read') }, onRead);
|
||||
server.registerPrompt('summarize', { scopeChallenge: requireScopes('prompt:read') }, onPrompt);
|
||||
return server;
|
||||
});
|
||||
|
||||
const resourceResponse = await handler.fetch(request('resources/read', { uri: 'config://settings' }), {
|
||||
authInfo: auth([])
|
||||
});
|
||||
const promptResponse = await handler.fetch(request('prompts/get', { name: 'summarize', arguments: {} }), {
|
||||
authInfo: auth([])
|
||||
});
|
||||
|
||||
expect(resourceResponse.status).toBe(403);
|
||||
expect(resourceResponse.headers.get('WWW-Authenticate')).toContain('scope="config:read"');
|
||||
expect(promptResponse.status).toBe(403);
|
||||
expect(promptResponse.headers.get('WWW-Authenticate')).toContain('scope="prompt:read"');
|
||||
expect(onRead).not.toHaveBeenCalled();
|
||||
expect(onPrompt).not.toHaveBeenCalled();
|
||||
});
|
||||
});
|
||||
|
||||
describe('scope challenge resource_metadata derivation', () => {
|
||||
it('advertises the metadata URL stamped onto the auth info', async () => {
|
||||
const handler = createHandler(requireScopes('repo:write'));
|
||||
|
||||
const response = await handler.fetch(call('operate', {}), {
|
||||
authInfo: auth(['repo:read'], RESOURCE_METADATA_URL)
|
||||
});
|
||||
|
||||
expect(response.status).toBe(403);
|
||||
expect(response.headers.get('WWW-Authenticate')).toBe(
|
||||
'Bearer error="insufficient_scope", error_description="Insufficient scope", scope="repo:write"' +
|
||||
`, resource_metadata="${RESOURCE_METADATA_URL}"`
|
||||
);
|
||||
});
|
||||
|
||||
it('carries the URL configured on requireBearerAuth through to the challenge header', async () => {
|
||||
// The single configuration site: the bearer-auth gate stamps its
|
||||
// resourceMetadataUrl onto the AuthInfo it returns, and the scope
|
||||
// preflight reads it from there.
|
||||
const gate = requireBearerAuth({
|
||||
verifier: {
|
||||
verifyAccessToken: async token => ({
|
||||
token,
|
||||
clientId: 'client',
|
||||
scopes: ['repo:read'],
|
||||
expiresAt: Math.floor(Date.now() / 1000) + 3600
|
||||
})
|
||||
},
|
||||
resourceMetadataUrl: RESOURCE_METADATA_URL
|
||||
});
|
||||
const handler = createHandler(requireScopes('repo:write'));
|
||||
|
||||
const incoming = call('operate', {}, { Authorization: 'Bearer token-1' });
|
||||
const gateResult = await gate(incoming);
|
||||
expect(gateResult).not.toBeInstanceOf(Response);
|
||||
const authInfo = gateResult as AuthInfo;
|
||||
expect(authInfo.resourceMetadataUrl).toBe(RESOURCE_METADATA_URL);
|
||||
|
||||
const response = await handler.fetch(incoming, { authInfo });
|
||||
|
||||
expect(response.status).toBe(403);
|
||||
expect(response.headers.get('WWW-Authenticate')).toContain(`resource_metadata="${RESOURCE_METADATA_URL}"`);
|
||||
});
|
||||
|
||||
it('falls back to the well-known location for the RFC 8707 resource identifier', async () => {
|
||||
const handler = createHandler(requireScopes('repo:write'));
|
||||
|
||||
const response = await handler.fetch(call('operate', {}), {
|
||||
authInfo: { ...auth(['repo:read']), resource: new URL('https://api.example.com/mcp') }
|
||||
});
|
||||
|
||||
expect(response.status).toBe(403);
|
||||
expect(response.headers.get('WWW-Authenticate')).toContain(
|
||||
'resource_metadata="https://api.example.com/.well-known/oauth-protected-resource/mcp"'
|
||||
);
|
||||
});
|
||||
|
||||
it('omits resource_metadata entirely when the auth info offers no URL', async () => {
|
||||
const handler = createHandler(requireScopes('repo:write'));
|
||||
|
||||
const response = await handler.fetch(call('operate', {}), { authInfo: auth(['repo:read']) });
|
||||
|
||||
expect(response.status).toBe(403);
|
||||
expect(response.headers.get('WWW-Authenticate')).not.toContain('resource_metadata');
|
||||
});
|
||||
});
|
||||
195
packages/server/test/server/scopeChallengePrimitives.test.ts
Normal file
195
packages/server/test/server/scopeChallengePrimitives.test.ts
Normal file
|
|
@ -0,0 +1,195 @@
|
|||
import { randomUUID } from 'node:crypto';
|
||||
|
||||
import type { AuthInfo, JSONRPCMessage, JSONRPCRequest } from '@modelcontextprotocol/core-internal';
|
||||
import { describe, expect, it, vi } from 'vitest';
|
||||
|
||||
import { McpServer, ResourceTemplate } from '../../src/server/mcp';
|
||||
import type { ScopeChallengeHandler } from '../../src/server/scopeChallenge';
|
||||
import { requireScopes } from '../../src/server/scopeChallenge';
|
||||
import { WebStandardStreamableHTTPServerTransport } from '../../src/server/streamableHttp';
|
||||
|
||||
function auth(scopes: string[]): AuthInfo {
|
||||
return { token: 'token', clientId: 'client', scopes };
|
||||
}
|
||||
|
||||
function readResource(uri: string, id: string | number = 'read-1'): JSONRPCRequest {
|
||||
return { jsonrpc: '2.0', method: 'resources/read', params: { uri }, id };
|
||||
}
|
||||
|
||||
function getPrompt(name: string, id: string | number = 'prompt-1'): JSONRPCRequest {
|
||||
return { jsonrpc: '2.0', method: 'prompts/get', params: { name, arguments: {} }, id };
|
||||
}
|
||||
|
||||
function request(body: JSONRPCMessage | JSONRPCMessage[], sessionId?: string): Request {
|
||||
return new Request('http://localhost/mcp', {
|
||||
method: 'POST',
|
||||
headers: {
|
||||
'Content-Type': 'application/json',
|
||||
Accept: 'application/json, text/event-stream',
|
||||
...(sessionId !== undefined && {
|
||||
'mcp-session-id': sessionId,
|
||||
'mcp-protocol-version': '2025-11-25'
|
||||
})
|
||||
},
|
||||
body: JSON.stringify(body)
|
||||
});
|
||||
}
|
||||
|
||||
async function initialize(transport: WebStandardStreamableHTTPServerTransport): Promise<string> {
|
||||
const response = await transport.handleRequest(
|
||||
request({
|
||||
jsonrpc: '2.0',
|
||||
method: 'initialize',
|
||||
params: {
|
||||
clientInfo: { name: 'test-client', version: '1.0' },
|
||||
protocolVersion: '2025-11-25',
|
||||
capabilities: {}
|
||||
},
|
||||
id: 'init'
|
||||
})
|
||||
);
|
||||
return response.headers.get('mcp-session-id')!;
|
||||
}
|
||||
|
||||
async function createHarness(server: McpServer): Promise<{
|
||||
transport: WebStandardStreamableHTTPServerTransport;
|
||||
sessionId: string;
|
||||
}> {
|
||||
const transport = new WebStandardStreamableHTTPServerTransport({
|
||||
sessionIdGenerator: () => randomUUID(),
|
||||
enableJsonResponse: true
|
||||
});
|
||||
await server.connect(transport);
|
||||
return { transport, sessionId: await initialize(transport) };
|
||||
}
|
||||
|
||||
describe('scope challenges for resources and prompts', () => {
|
||||
it('challenges static resources and prompts before their handlers run', async () => {
|
||||
const server = new McpServer({ name: 'scope-primitives', version: '1.0.0' });
|
||||
const read = vi.fn(async (uri: URL) => ({ contents: [{ uri: uri.href, text: 'secret' }] }));
|
||||
const render = vi.fn(async () => ({
|
||||
messages: [{ role: 'user' as const, content: { type: 'text' as const, text: 'secret' } }]
|
||||
}));
|
||||
server.registerResource(
|
||||
'config',
|
||||
'config://settings',
|
||||
{ mimeType: 'text/plain', scopeChallenge: requireScopes('config:read') },
|
||||
read
|
||||
);
|
||||
server.registerPrompt('summarize', { scopeChallenge: requireScopes('prompt:read') }, render);
|
||||
const { transport, sessionId } = await createHarness(server);
|
||||
|
||||
const resourceResponse = await transport.handleRequest(request(readResource('config://settings'), sessionId), {
|
||||
authInfo: auth([])
|
||||
});
|
||||
const promptResponse = await transport.handleRequest(request(getPrompt('summarize'), sessionId), {
|
||||
authInfo: auth([])
|
||||
});
|
||||
|
||||
expect(resourceResponse.status).toBe(403);
|
||||
expect(resourceResponse.headers.get('WWW-Authenticate')).toContain('scope="config:read"');
|
||||
expect(promptResponse.status).toBe(403);
|
||||
expect(promptResponse.headers.get('WWW-Authenticate')).toContain('scope="prompt:read"');
|
||||
expect(read).not.toHaveBeenCalled();
|
||||
expect(render).not.toHaveBeenCalled();
|
||||
await transport.close();
|
||||
});
|
||||
|
||||
it('routes a template resource request to its request-aware callback', async () => {
|
||||
const callback = vi.fn<ScopeChallengeHandler>(({ request: incoming, authInfo }) => {
|
||||
const uri = (incoming.params as { uri?: unknown }).uri;
|
||||
const scopes = typeof uri === 'string' && uri.includes('/private/') ? (['repo:read'] as const) : (['public_repo'] as const);
|
||||
return scopes.every(scope => authInfo?.scopes.includes(scope)) ? undefined : { scopes };
|
||||
});
|
||||
const read = vi.fn(async (uri: URL) => ({ contents: [{ uri: uri.href, text: 'repository' }] }));
|
||||
const server = new McpServer({ name: 'scope-primitives', version: '1.0.0' });
|
||||
server.registerResource(
|
||||
'repository',
|
||||
new ResourceTemplate('github://{owner}/{visibility}/{repo}', { list: undefined }),
|
||||
{ scopeChallenge: callback },
|
||||
read
|
||||
);
|
||||
const { transport, sessionId } = await createHarness(server);
|
||||
|
||||
const privateResponse = await transport.handleRequest(request(readResource('github://octo/private/sdk'), sessionId), {
|
||||
authInfo: auth(['public_repo'])
|
||||
});
|
||||
const publicResponse = await transport.handleRequest(request(readResource('github://octo/public/sdk'), sessionId), {
|
||||
authInfo: auth(['public_repo'])
|
||||
});
|
||||
|
||||
expect(privateResponse.status).toBe(403);
|
||||
expect(privateResponse.headers.get('WWW-Authenticate')).toContain('scope="repo:read"');
|
||||
expect(publicResponse.status).toBe(200);
|
||||
expect(callback).toHaveBeenCalledWith({
|
||||
request: expect.objectContaining({
|
||||
method: 'resources/read',
|
||||
params: { uri: 'github://octo/private/sdk' }
|
||||
}),
|
||||
authInfo: auth(['public_repo'])
|
||||
});
|
||||
expect(read).toHaveBeenCalledOnce();
|
||||
await transport.close();
|
||||
});
|
||||
|
||||
it('tracks callback updates and enabled state for every primitive', async () => {
|
||||
const server = new McpServer({ name: 'scope-primitives', version: '1.0.0' });
|
||||
const resource = server.registerResource(
|
||||
'config',
|
||||
'config://settings',
|
||||
{ scopeChallenge: requireScopes('config:read') },
|
||||
async uri => ({ contents: [{ uri: uri.href, text: 'config' }] })
|
||||
);
|
||||
const template = server.registerResource(
|
||||
'repository',
|
||||
new ResourceTemplate('github://{owner}/{repo}', { list: undefined }),
|
||||
{ scopeChallenge: requireScopes('repo:read') },
|
||||
async uri => ({ contents: [{ uri: uri.href, text: 'repository' }] })
|
||||
);
|
||||
const prompt = server.registerPrompt('summarize', { scopeChallenge: requireScopes('prompt:read') }, async () => ({
|
||||
messages: []
|
||||
}));
|
||||
|
||||
expect(await server.resolveScopeChallenge({ request: readResource('config://settings'), authInfo: auth([]) })).toEqual({
|
||||
scopes: ['config:read']
|
||||
});
|
||||
expect(await server.resolveScopeChallenge({ request: readResource('github://octo/sdk'), authInfo: auth([]) })).toEqual({
|
||||
scopes: ['repo:read']
|
||||
});
|
||||
expect(await server.resolveScopeChallenge({ request: getPrompt('summarize'), authInfo: auth([]) })).toEqual({
|
||||
scopes: ['prompt:read']
|
||||
});
|
||||
|
||||
resource.update({ scopeChallenge: requireScopes('config:admin') });
|
||||
template.disable();
|
||||
prompt.update({ scopeChallenge: null });
|
||||
|
||||
expect(await server.resolveScopeChallenge({ request: readResource('config://settings'), authInfo: auth([]) })).toEqual({
|
||||
scopes: ['config:admin']
|
||||
});
|
||||
expect(await server.resolveScopeChallenge({ request: readResource('github://octo/sdk'), authInfo: auth([]) })).toBeUndefined();
|
||||
expect(await server.resolveScopeChallenge({ request: getPrompt('summarize'), authInfo: auth([]) })).toBeUndefined();
|
||||
});
|
||||
|
||||
it('leaves malformed and non-invocation requests to normal protocol handling', async () => {
|
||||
const callback = vi.fn<ScopeChallengeHandler>(requireScopes('resource:read'));
|
||||
const server = new McpServer({ name: 'scope-primitives', version: '1.0.0' });
|
||||
server.registerResource('config', 'config://settings', { scopeChallenge: callback }, async uri => ({
|
||||
contents: [{ uri: uri.href, text: 'config' }]
|
||||
}));
|
||||
|
||||
expect(
|
||||
await server.resolveScopeChallenge({
|
||||
request: readResource('not a valid URI'),
|
||||
authInfo: auth([])
|
||||
})
|
||||
).toBeUndefined();
|
||||
expect(
|
||||
await server.resolveScopeChallenge({
|
||||
request: { jsonrpc: '2.0', method: 'resources/list', params: {}, id: 'list' },
|
||||
authInfo: auth([])
|
||||
})
|
||||
).toBeUndefined();
|
||||
expect(callback).not.toHaveBeenCalled();
|
||||
});
|
||||
});
|
||||
|
|
@ -12,12 +12,14 @@ import { randomUUID } from 'node:crypto';
|
|||
import { localhostHostValidation } from '@modelcontextprotocol/express';
|
||||
import { NodeStreamableHTTPServerTransport, toNodeHandler } from '@modelcontextprotocol/node';
|
||||
import type {
|
||||
AuthInfo,
|
||||
CallToolResult,
|
||||
EventId,
|
||||
EventStore,
|
||||
GetPromptResult,
|
||||
InputRequests,
|
||||
InputRequiredResult,
|
||||
JSONRPCRequest,
|
||||
ReadResourceResult,
|
||||
ServerContext,
|
||||
StreamId
|
||||
|
|
@ -45,6 +47,28 @@ import * as z from 'zod/v4';
|
|||
const resourceSubscriptions = new Set<string>();
|
||||
const watchedResourceContent = 'Watched resource content';
|
||||
|
||||
const SCOPE_CHALLENGE_LOW_TOKEN = 'mcp-conformance-scope-low';
|
||||
const SCOPE_CHALLENGE_FULL_TOKEN = 'mcp-conformance-scope-full';
|
||||
const SCOPE_CHALLENGE_BASELINE_SCOPE = 'mcp:conformance:baseline';
|
||||
const SCOPE_CHALLENGE_SCOPES = {
|
||||
tool: ['mcp:conformance:tools:call', 'mcp:conformance:tools:test_simple_text'],
|
||||
staticResource: ['mcp:conformance:resources:read', 'mcp:conformance:resources:static'],
|
||||
templateResource: ['mcp:conformance:resources:read', 'mcp:conformance:resources:template:123'],
|
||||
prompt: ['mcp:conformance:prompts:get', 'mcp:conformance:prompts:test_simple_prompt']
|
||||
} as const;
|
||||
|
||||
type ConformanceScopeChallengeHandler = (context: {
|
||||
request: JSONRPCRequest;
|
||||
authInfo?: AuthInfo;
|
||||
}) => { scopes: readonly [string, ...string[]] } | undefined;
|
||||
|
||||
function requireConformanceScopes(...scopes: readonly [string, ...string[]]): ConformanceScopeChallengeHandler {
|
||||
return ({ authInfo }) => {
|
||||
if (authInfo === undefined || scopes.every(scope => authInfo.scopes.includes(scope))) return;
|
||||
return { scopes };
|
||||
};
|
||||
}
|
||||
|
||||
// Session management
|
||||
const transports: { [sessionId: string]: NodeStreamableHTTPServerTransport } = {};
|
||||
const servers: { [sessionId: string]: McpServer } = {};
|
||||
|
|
@ -244,17 +268,15 @@ function createMcpServer() {
|
|||
);
|
||||
|
||||
// Simple text tool
|
||||
mcpServer.registerTool(
|
||||
'test_simple_text',
|
||||
{
|
||||
description: 'Tests simple text content response'
|
||||
},
|
||||
async (): Promise<CallToolResult> => {
|
||||
return {
|
||||
content: [{ type: 'text', text: 'This is a simple text response for testing.' }]
|
||||
};
|
||||
}
|
||||
);
|
||||
const simpleTextToolConfig = {
|
||||
description: 'Tests simple text content response',
|
||||
scopeChallenge: requireConformanceScopes(...SCOPE_CHALLENGE_SCOPES.tool)
|
||||
};
|
||||
mcpServer.registerTool('test_simple_text', simpleTextToolConfig, async (): Promise<CallToolResult> => {
|
||||
return {
|
||||
content: [{ type: 'text', text: 'This is a simple text response for testing.' }]
|
||||
};
|
||||
});
|
||||
|
||||
// Image content tool
|
||||
mcpServer.registerTool(
|
||||
|
|
@ -1092,26 +1114,23 @@ function createMcpServer() {
|
|||
// ===== RESOURCES =====
|
||||
|
||||
// Static text resource
|
||||
mcpServer.registerResource(
|
||||
'static-text',
|
||||
'test://static-text',
|
||||
{
|
||||
title: 'Static Text Resource',
|
||||
description: 'A static text resource for testing',
|
||||
mimeType: 'text/plain'
|
||||
},
|
||||
async (): Promise<ReadResourceResult> => {
|
||||
return {
|
||||
contents: [
|
||||
{
|
||||
uri: 'test://static-text',
|
||||
mimeType: 'text/plain',
|
||||
text: 'This is the content of the static text resource.'
|
||||
}
|
||||
]
|
||||
};
|
||||
}
|
||||
);
|
||||
const staticTextResourceConfig = {
|
||||
title: 'Static Text Resource',
|
||||
description: 'A static text resource for testing',
|
||||
mimeType: 'text/plain',
|
||||
scopeChallenge: requireConformanceScopes(...SCOPE_CHALLENGE_SCOPES.staticResource)
|
||||
};
|
||||
mcpServer.registerResource('static-text', 'test://static-text', staticTextResourceConfig, async (): Promise<ReadResourceResult> => {
|
||||
return {
|
||||
contents: [
|
||||
{
|
||||
uri: 'test://static-text',
|
||||
mimeType: 'text/plain',
|
||||
text: 'This is the content of the static text resource.'
|
||||
}
|
||||
]
|
||||
};
|
||||
});
|
||||
|
||||
// Static binary resource
|
||||
mcpServer.registerResource(
|
||||
|
|
@ -1136,14 +1155,16 @@ function createMcpServer() {
|
|||
);
|
||||
|
||||
// Resource template
|
||||
const resourceTemplateConfig = {
|
||||
title: 'Resource Template',
|
||||
description: 'A resource template with parameter substitution',
|
||||
mimeType: 'application/json',
|
||||
scopeChallenge: requireConformanceScopes(...SCOPE_CHALLENGE_SCOPES.templateResource)
|
||||
};
|
||||
mcpServer.registerResource(
|
||||
'template',
|
||||
new ResourceTemplate('test://template/{id}/data', { list: undefined }),
|
||||
{
|
||||
title: 'Resource Template',
|
||||
description: 'A resource template with parameter substitution',
|
||||
mimeType: 'application/json'
|
||||
},
|
||||
resourceTemplateConfig,
|
||||
async (uri, variables): Promise<ReadResourceResult> => {
|
||||
const id = variables.id;
|
||||
return {
|
||||
|
|
@ -1202,26 +1223,24 @@ function createMcpServer() {
|
|||
// ===== PROMPTS =====
|
||||
|
||||
// Simple prompt
|
||||
mcpServer.registerPrompt(
|
||||
'test_simple_prompt',
|
||||
{
|
||||
title: 'Simple Test Prompt',
|
||||
description: 'A simple prompt without arguments'
|
||||
},
|
||||
async (): Promise<GetPromptResult> => {
|
||||
return {
|
||||
messages: [
|
||||
{
|
||||
role: 'user',
|
||||
content: {
|
||||
type: 'text',
|
||||
text: 'This is a simple prompt for testing.'
|
||||
}
|
||||
const simplePromptConfig = {
|
||||
title: 'Simple Test Prompt',
|
||||
description: 'A simple prompt without arguments',
|
||||
scopeChallenge: requireConformanceScopes(...SCOPE_CHALLENGE_SCOPES.prompt)
|
||||
};
|
||||
mcpServer.registerPrompt('test_simple_prompt', simplePromptConfig, async (): Promise<GetPromptResult> => {
|
||||
return {
|
||||
messages: [
|
||||
{
|
||||
role: 'user',
|
||||
content: {
|
||||
type: 'text',
|
||||
text: 'This is a simple prompt for testing.'
|
||||
}
|
||||
]
|
||||
};
|
||||
}
|
||||
);
|
||||
}
|
||||
]
|
||||
};
|
||||
});
|
||||
|
||||
// Prompt with arguments
|
||||
mcpServer.registerPrompt(
|
||||
|
|
@ -1386,9 +1405,12 @@ function createMcpServer() {
|
|||
// `createMcpServer()` fixture definition the 2025 sessions use. Legacy traffic
|
||||
// never reaches this handler (see the routing in the POST handler below), so
|
||||
// the 2025 stateful session path is unchanged.
|
||||
const modernHandler = createMcpHandler(() => createMcpServer(), {
|
||||
onerror: error => console.error('Modern-era MCP handler error:', error)
|
||||
});
|
||||
const PORT = process.env.PORT || 3000;
|
||||
const scopeChallengeResourceMetadataUrl = `http://localhost:${PORT}/.well-known/oauth-protected-resource/mcp`;
|
||||
const modernHandlerOptions = {
|
||||
onerror: (error: Error) => console.error('Modern-era MCP handler error:', error)
|
||||
};
|
||||
const modernHandler = createMcpHandler(() => createMcpServer(), modernHandlerOptions);
|
||||
const modernNodeHandler = toNodeHandler(modernHandler);
|
||||
|
||||
/** Normalize a possibly-repeated HTTP header to its first value. */
|
||||
|
|
@ -1401,6 +1423,38 @@ function headerValue(value: string | string[] | undefined): string | undefined {
|
|||
const app = express();
|
||||
app.use(express.json());
|
||||
|
||||
app.use((req, _res, next) => {
|
||||
const authorization = req.header('authorization');
|
||||
const token = authorization?.startsWith('Bearer ') ? authorization.slice('Bearer '.length) : undefined;
|
||||
if (token === SCOPE_CHALLENGE_LOW_TOKEN) {
|
||||
req.auth = {
|
||||
token,
|
||||
clientId: 'mcp-conformance-scope-challenge',
|
||||
scopes: [SCOPE_CHALLENGE_BASELINE_SCOPE],
|
||||
// Scope-challenge 403s derive their resource_metadata parameter
|
||||
// from the verified AuthInfo (a real deployment's bearer-auth gate
|
||||
// stamps this from its resourceMetadataUrl option).
|
||||
resourceMetadataUrl: scopeChallengeResourceMetadataUrl
|
||||
};
|
||||
} else if (token === SCOPE_CHALLENGE_FULL_TOKEN) {
|
||||
req.auth = {
|
||||
token,
|
||||
clientId: 'mcp-conformance-scope-challenge',
|
||||
resourceMetadataUrl: scopeChallengeResourceMetadataUrl,
|
||||
scopes: [
|
||||
SCOPE_CHALLENGE_BASELINE_SCOPE,
|
||||
...new Set([
|
||||
...SCOPE_CHALLENGE_SCOPES.tool,
|
||||
...SCOPE_CHALLENGE_SCOPES.staticResource,
|
||||
...SCOPE_CHALLENGE_SCOPES.templateResource,
|
||||
...SCOPE_CHALLENGE_SCOPES.prompt
|
||||
])
|
||||
]
|
||||
};
|
||||
}
|
||||
next();
|
||||
});
|
||||
|
||||
// DNS rebinding protection: reject non-localhost Host headers
|
||||
app.use(localhostHostValidation());
|
||||
|
||||
|
|
@ -1409,7 +1463,7 @@ app.use(
|
|||
cors({
|
||||
origin: '*',
|
||||
exposedHeaders: ['Mcp-Session-Id'],
|
||||
allowedHeaders: ['Content-Type', 'mcp-session-id', 'last-event-id', 'mcp-protocol-version', 'mcp-method']
|
||||
allowedHeaders: ['Authorization', 'Content-Type', 'mcp-session-id', 'last-event-id', 'mcp-protocol-version', 'mcp-method']
|
||||
})
|
||||
);
|
||||
|
||||
|
|
@ -1560,7 +1614,6 @@ app.delete('/mcp', async (req: Request, res: Response) => {
|
|||
});
|
||||
|
||||
// Start server
|
||||
const PORT = process.env.PORT || 3000;
|
||||
const httpServer = app.listen(PORT, () => {
|
||||
console.log(`MCP Conformance Test Server running on http://localhost:${PORT}`);
|
||||
console.log(` - MCP endpoint: http://localhost:${PORT}/mcp`);
|
||||
|
|
|
|||
Loading…
Reference in a new issue