Files
pocket-id/backend/internal/controller/well_known_controller.go
2026-07-12 13:42:05 -05:00

104 lines
4.4 KiB
Go

package controller
import (
"context"
"encoding/json"
"fmt"
"log/slog"
"net/http"
"os"
"github.com/danielgtaylor/huma/v2"
"github.com/pocket-id/pocket-id/backend/internal/common"
"github.com/pocket-id/pocket-id/backend/internal/service"
httpapi "github.com/pocket-id/pocket-id/backend/internal/utils/huma"
)
type wellKnownOutput struct {
ContentType string `header:"Content-Type"`
Body []byte
}
// NewWellKnownController registers OIDC discovery endpoints
func NewWellKnownController(api huma.API, jwtService *service.JwtService) {
controller := &WellKnownController{jwtService: jwtService}
var err error
controller.oidcConfig, err = controller.computeOIDCConfiguration()
if err != nil {
slog.Error("Failed to pre-compute OpenID Connect configuration document", slog.Any("error", err))
os.Exit(1)
return
}
httpapi.Register(api, huma.Operation{
OperationID: "get-jwks",
Method: http.MethodGet,
Path: "/.well-known/jwks.json",
Summary: "Get JSON Web Key Set",
Tags: []string{"Well Known"},
}, controller.jwksHandler)
httpapi.Register(api, huma.Operation{
OperationID: "get-openid-configuration",
Method: http.MethodGet,
Path: "/.well-known/openid-configuration",
Summary: "Get OpenID Connect discovery configuration",
Tags: []string{"Well Known"},
}, controller.openIDConfigurationHandler)
}
type WellKnownController struct {
jwtService *service.JwtService
oidcConfig []byte
}
func (wkc *WellKnownController) jwksHandler(_ context.Context, _ *httpapi.EmptyInput) (*wellKnownOutput, error) {
jwks, err := wkc.jwtService.GetPublicJWKSAsJSON()
if err != nil {
return nil, err
}
return &wellKnownOutput{ContentType: "application/json; charset=utf-8", Body: jwks}, nil
}
func (wkc *WellKnownController) openIDConfigurationHandler(_ context.Context, _ *httpapi.EmptyInput) (*wellKnownOutput, error) {
return &wellKnownOutput{ContentType: "application/json; charset=utf-8", Body: wkc.oidcConfig}, nil
}
func (wkc *WellKnownController) computeOIDCConfiguration() ([]byte, error) {
appURL := common.EnvConfig.AppURL
internalAppURL := common.EnvConfig.InternalAppURL
alg, err := wkc.jwtService.GetKeyAlg()
if err != nil {
return nil, fmt.Errorf("failed to get key algorithm: %w", err)
}
config := map[string]any{
"issuer": appURL,
"authorization_endpoint": appURL + "/authorize",
"token_endpoint": internalAppURL + "/api/oidc/token",
"userinfo_endpoint": internalAppURL + "/api/oidc/userinfo",
"end_session_endpoint": appURL + "/api/oidc/end-session",
"introspection_endpoint": internalAppURL + "/api/oidc/introspect",
"device_authorization_endpoint": appURL + "/api/oidc/device/authorize",
"jwks_uri": internalAppURL + "/.well-known/jwks.json",
"grant_types_supported": []string{service.GrantTypeAuthorizationCode, service.GrantTypeRefreshToken, service.GrantTypeDeviceCode, service.GrantTypeClientCredentials},
"scopes_supported": []string{"openid", "profile", "email", "groups", "offline_access"},
"claims_supported": []string{"sub", "given_name", "family_name", "name", "display_name", "email", "email_verified", "preferred_username", "picture", "groups", "auth_time", "amr"},
"response_types_supported": []string{"code", "id_token"},
"subject_types_supported": []string{"public"},
"id_token_signing_alg_values_supported": []string{alg.String()},
"authorization_response_iss_parameter_supported": true,
"code_challenge_methods_supported": []string{"plain", "S256"},
"request_parameter_supported": true,
"request_uri_parameter_supported": false,
"request_object_signing_alg_values_supported": []string{"none"},
"prompt_values_supported": []string{"none", "login", "consent", "select_account"},
"token_endpoint_auth_methods_supported": []string{"client_secret_basic", "client_secret_post", "none"},
"pushed_authorization_request_endpoint": internalAppURL + "/api/oidc/par",
"require_pushed_authorization_requests": false,
}
return json.Marshal(config)
}