registry/internal/api/handlers/v0/auth/none.go
adam jones c733cedaf8
auth: New auth flow (#273)
Fixes #264. Adds endpoints:

```
/v0/auth/github    # exchange a github token for a registry token that gives you access to namespaces io.github.username and io.github.org for your orgs
/v0/auth/none     # get a registry token for namespace io.modelcontextprotocol.anonymous (only for testing/local dev purposes)
```

Updates `/v0/publish` to accept one of these registry tokens.

## Motivation and Context

See #264

## How Has This Been Tested?

- Running locally and getting a token from `/v0/auth/none` and then
publishing to `/v0/publish`
- Updating the integration tests that get a token and then publish, and
them passing

## Breaking Changes

This is a breaking change to the auth API. This is fine for registry
given it's not deployed yet.

## Types of changes
<!-- What types of changes does your code introduce? Put an `x` in all
the boxes that apply: -->
- [ ] Bug fix (non-breaking change which fixes an issue)
- [x] New feature (non-breaking change which adds functionality)
- [x] Breaking change (fix or feature that would cause existing
functionality to change)
- [x] Documentation update

## Checklist
<!-- Go over all the following points, and put an `x` in all the boxes
that apply. -->
- [x] I have read the [MCP
Documentation](https://modelcontextprotocol.io)
- [x] My code follows the repository's style guidelines
- [x] New and existing tests pass locally
- [x] I have added appropriate error handling
- [x] I have added or updated documentation as needed

## Additional context
<!-- Add any other context, implementation notes, or design decisions
-->

---------

Co-authored-by: claude[bot] <209825114+claude[bot]@users.noreply.github.com>
Co-authored-by: adam jones <domdomegg@users.noreply.github.com>
2025-08-15 13:03:35 +01:00

84 lines
2.3 KiB
Go

package auth
import (
"context"
"fmt"
"net/http"
"github.com/danielgtaylor/huma/v2"
"github.com/modelcontextprotocol/registry/internal/auth"
"github.com/modelcontextprotocol/registry/internal/config"
"github.com/modelcontextprotocol/registry/internal/model"
)
// NoneHandler handles anonymous authentication
type NoneHandler struct {
config *config.Config
jwtManager *auth.JWTManager
}
// NewNoneHandler creates a new anonymous authentication handler
func NewNoneHandler(cfg *config.Config) *NoneHandler {
return &NoneHandler{
config: cfg,
jwtManager: auth.NewJWTManager(cfg),
}
}
// RegisterNoneEndpoint registers the anonymous authentication endpoint
func RegisterNoneEndpoint(api huma.API, cfg *config.Config) {
if !cfg.EnableAnonymousAuth {
return
}
handler := NewNoneHandler(cfg)
// Anonymous token endpoint
huma.Register(api, huma.Operation{
OperationID: "get-anonymous-token",
Method: http.MethodPost,
Path: "/v0/auth/none",
Summary: "Get anonymous Registry JWT",
Description: "Get a short-lived Registry JWT token for publishing to io.modelcontextprotocol.anonymous/* namespace",
Tags: []string{"auth"},
}, func(ctx context.Context, _ *struct{}) (*struct {
Body auth.TokenResponse `json:"body"`
}, error) {
response, err := handler.GetAnonymousToken(ctx)
if err != nil {
return nil, huma.Error500InternalServerError("Failed to generate token", err)
}
return &struct {
Body auth.TokenResponse `json:"body"`
}{
Body: *response,
}, nil
})
}
// GetAnonymousToken generates an anonymous Registry JWT token
func (h *NoneHandler) GetAnonymousToken(ctx context.Context) (*auth.TokenResponse, error) {
// Build permissions for anonymous namespace only
permissions := []auth.Permission{
{
Action: auth.PermissionActionPublish,
ResourcePattern: "io.modelcontextprotocol.anonymous/*",
},
}
// Create JWT claims for anonymous user
claims := auth.JWTClaims{
AuthMethod: model.AuthMethodNone,
AuthMethodSubject: "anonymous",
Permissions: permissions,
}
// Generate Registry JWT token
tokenResponse, err := h.jwtManager.GenerateTokenResponse(ctx, claims)
if err != nil {
return nil, fmt.Errorf("failed to generate JWT token: %w", err)
}
return tokenResponse, nil
}