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Documentation
¶
Overview ¶
Package oauth provides OAuth 2.0 Protected Resource Metadata (RFC 9728) support for the GitHub MCP Server HTTP mode.
Index ¶
Constants ¶
const (
// OAuthProtectedResourcePrefix is the well-known path prefix for OAuth protected resource metadata.
OAuthProtectedResourcePrefix = "/.well-known/oauth-protected-resource"
)
Variables ¶
var SupportedScopes = []string{
"repo",
"read:org",
"read:user",
"user:email",
"read:packages",
"write:packages",
"read:project",
"project",
"gist",
"notifications",
"workflow",
"codespace",
}
SupportedScopes lists all OAuth scopes that may be required by MCP tools.
Functions ¶
func BuildResourceMetadataURL ¶
BuildResourceMetadataURL constructs the full URL to the OAuth protected resource metadata endpoint.
func GetEffectiveHostAndScheme ¶
GetEffectiveHostAndScheme returns the effective host and scheme for a request.
X-Forwarded-Host and X-Forwarded-Proto are only honored when cfg.TrustProxyHeaders is true. Without that opt-in, an untrusted client could otherwise influence the OAuth resource metadata URL advertised to MCP clients.
Types ¶
type AuthHandler ¶
type AuthHandler struct {
// contains filtered or unexported fields
}
AuthHandler handles OAuth-related HTTP endpoints.
func NewAuthHandler ¶
func NewAuthHandler(cfg *Config, apiHost utils.APIHostResolver) (*AuthHandler, error)
NewAuthHandler creates a new OAuth auth handler.
func (*AuthHandler) RegisterRoutes ¶
func (h *AuthHandler) RegisterRoutes(r chi.Router)
RegisterRoutes registers the OAuth protected resource metadata routes.
type Config ¶
type Config struct {
// BaseURL is the publicly accessible URL where this server is hosted.
// This is used to construct the OAuth resource URL.
BaseURL string
// AuthorizationServer is the OAuth authorization server URL.
// Defaults to GitHub's OAuth server if not specified.
AuthorizationServer string
// ResourcePath is the externally visible base path for the MCP server (e.g., "/mcp").
// This is used to restore the original path when a proxy strips a base path before forwarding.
// If empty, requests are treated as already using the external path.
ResourcePath string
// TrustProxyHeaders indicates whether X-Forwarded-Host and X-Forwarded-Proto
// should be honored when deriving the effective host and scheme for OAuth
// resource URLs. This must only be enabled when the server is deployed
// behind a trusted proxy that sets these headers; otherwise an untrusted
// client can influence the OAuth resource metadata URL advertised to MCP
// clients. When BaseURL is set, it always takes precedence and these
// headers are unused.
TrustProxyHeaders bool
}
Config holds the OAuth configuration for the MCP server.
Source Files