feat: Token Revocation, Request Object and OP Certification (#130)

FEATURES (and FIXES):
- support OAuth 2.0 Token Revocation [RFC 7009](https://datatracker.ietf.org/doc/html/rfc7009)
- handle request object using `request` parameter [OIDC Core 1.0 Request Object](https://openid.net/specs/openid-connect-core-1_0.html#RequestObject)
- handle response mode
- added some information to the discovery endpoint:
  - revocation_endpoint (added with token revocation) 
  - revocation_endpoint_auth_methods_supported (added with token revocation)
  - revocation_endpoint_auth_signing_alg_values_supported (added with token revocation)
  - token_endpoint_auth_signing_alg_values_supported (was missing)
  - introspection_endpoint_auth_signing_alg_values_supported (was missing)
  - request_object_signing_alg_values_supported (added with request object)
  - request_parameter_supported (added with request object)
 - fixed `removeUserinfoScopes ` now returns the scopes without "userinfo" scopes (profile, email, phone, addedd) [source diff](https://github.com/caos/oidc/pull/130/files#diff-fad50c8c0f065d4dbc49d6c6a38f09c992c8f5d651a479ba00e31b500543559eL170-R171)
- improved error handling (pkg/oidc/error.go) and fixed some wrong OAuth errors (e.g. `invalid_grant` instead of `invalid_request`)
- improved MarshalJSON and added MarshalJSONWithStatus
- removed deprecated PEM decryption from `BytesToPrivateKey`  [source diff](https://github.com/caos/oidc/pull/130/files#diff-fe246e428e399ccff599627c71764de51387b60b4df84c67de3febd0954e859bL11-L19)
- NewAccessTokenVerifier now uses correct (internal) `accessTokenVerifier` [source diff](https://github.com/caos/oidc/pull/130/files#diff-3a01c7500ead8f35448456ef231c7c22f8d291710936cac91de5edeef52ffc72L52-R52)

BREAKING CHANGE:
- move functions from `utils` package into separate packages
- added various methods to the (OP) `Configuration` interface [source diff](https://github.com/caos/oidc/pull/130/files#diff-2538e0dfc772fdc37f057aecd6fcc2943f516c24e8be794cce0e368a26d20a82R19-R32)
- added revocationEndpoint to `WithCustomEndpoints ` [source diff](https://github.com/caos/oidc/pull/130/files#diff-19ae13a743eb7cebbb96492798b1bec556673eb6236b1387e38d722900bae1c3L355-R391)
- remove unnecessary context parameter from JWTProfileExchange [source diff](https://github.com/caos/oidc/pull/130/files#diff-4ed8f6affa4a9631fa8a034b3d5752fbb6a819107141aae00029014e950f7b4cL14)

pkg/op/mock/authorizer.mock.go

@@ -7,8 +7,8 @@ package mock
 import (
 	reflect "reflect"
 
+	http "github.com/caos/oidc/pkg/http"
 	op "github.com/caos/oidc/pkg/op"
-	utils "github.com/caos/oidc/pkg/utils"
 	gomock "github.com/golang/mock/gomock"
 )
 
@@ -50,10 +50,10 @@ func (mr *MockAuthorizerMockRecorder) Crypto() *gomock.Call {
 }
 
 // Decoder mocks base method.
-func (m *MockAuthorizer) Decoder() utils.Decoder {
+func (m *MockAuthorizer) Decoder() http.Decoder {
 	m.ctrl.T.Helper()
 	ret := m.ctrl.Call(m, "Decoder")
-	ret0, _ := ret[0].(utils.Decoder)
+	ret0, _ := ret[0].(http.Decoder)
 	return ret0
 }
 
@@ -64,10 +64,10 @@ func (mr *MockAuthorizerMockRecorder) Decoder() *gomock.Call {
 }
 
 // Encoder mocks base method.
-func (m *MockAuthorizer) Encoder() utils.Encoder {
+func (m *MockAuthorizer) Encoder() http.Encoder {
 	m.ctrl.T.Helper()
 	ret := m.ctrl.Call(m, "Encoder")
-	ret0, _ := ret[0].(utils.Encoder)
+	ret0, _ := ret[0].(http.Encoder)
 	return ret0
 }
 
@@ -105,6 +105,20 @@ func (mr *MockAuthorizerMockRecorder) Issuer() *gomock.Call {
 	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "Issuer", reflect.TypeOf((*MockAuthorizer)(nil).Issuer))
 }
 
+// RequestObjectSupported mocks base method.
+func (m *MockAuthorizer) RequestObjectSupported() bool {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "RequestObjectSupported")
+	ret0, _ := ret[0].(bool)
+	return ret0
+}
+
+// RequestObjectSupported indicates an expected call of RequestObjectSupported.
+func (mr *MockAuthorizerMockRecorder) RequestObjectSupported() *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "RequestObjectSupported", reflect.TypeOf((*MockAuthorizer)(nil).RequestObjectSupported))
+}
+
 // Signer mocks base method.
 func (m *MockAuthorizer) Signer() op.Signer {
 	m.ctrl.T.Helper()

pkg/op/mock/configuration.mock.go

@@ -147,6 +147,20 @@ func (mr *MockConfigurationMockRecorder) GrantTypeTokenExchangeSupported() *gomo
 	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "GrantTypeTokenExchangeSupported", reflect.TypeOf((*MockConfiguration)(nil).GrantTypeTokenExchangeSupported))
 }
 
+// IntrospectionAuthMethodPrivateKeyJWTSupported mocks base method.
+func (m *MockConfiguration) IntrospectionAuthMethodPrivateKeyJWTSupported() bool {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "IntrospectionAuthMethodPrivateKeyJWTSupported")
+	ret0, _ := ret[0].(bool)
+	return ret0
+}
+
+// IntrospectionAuthMethodPrivateKeyJWTSupported indicates an expected call of IntrospectionAuthMethodPrivateKeyJWTSupported.
+func (mr *MockConfigurationMockRecorder) IntrospectionAuthMethodPrivateKeyJWTSupported() *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "IntrospectionAuthMethodPrivateKeyJWTSupported", reflect.TypeOf((*MockConfiguration)(nil).IntrospectionAuthMethodPrivateKeyJWTSupported))
+}
+
 // IntrospectionEndpoint mocks base method.
 func (m *MockConfiguration) IntrospectionEndpoint() op.Endpoint {
 	m.ctrl.T.Helper()
@@ -161,6 +175,20 @@ func (mr *MockConfigurationMockRecorder) IntrospectionEndpoint() *gomock.Call {
 	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "IntrospectionEndpoint", reflect.TypeOf((*MockConfiguration)(nil).IntrospectionEndpoint))
 }
 
+// IntrospectionEndpointSigningAlgorithmsSupported mocks base method.
+func (m *MockConfiguration) IntrospectionEndpointSigningAlgorithmsSupported() []string {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "IntrospectionEndpointSigningAlgorithmsSupported")
+	ret0, _ := ret[0].([]string)
+	return ret0
+}
+
+// IntrospectionEndpointSigningAlgorithmsSupported indicates an expected call of IntrospectionEndpointSigningAlgorithmsSupported.
+func (mr *MockConfigurationMockRecorder) IntrospectionEndpointSigningAlgorithmsSupported() *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "IntrospectionEndpointSigningAlgorithmsSupported", reflect.TypeOf((*MockConfiguration)(nil).IntrospectionEndpointSigningAlgorithmsSupported))
+}
+
 // Issuer mocks base method.
 func (m *MockConfiguration) Issuer() string {
 	m.ctrl.T.Helper()
@@ -189,6 +217,76 @@ func (mr *MockConfigurationMockRecorder) KeysEndpoint() *gomock.Call {
 	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "KeysEndpoint", reflect.TypeOf((*MockConfiguration)(nil).KeysEndpoint))
 }
 
+// RequestObjectSigningAlgorithmsSupported mocks base method.
+func (m *MockConfiguration) RequestObjectSigningAlgorithmsSupported() []string {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "RequestObjectSigningAlgorithmsSupported")
+	ret0, _ := ret[0].([]string)
+	return ret0
+}
+
+// RequestObjectSigningAlgorithmsSupported indicates an expected call of RequestObjectSigningAlgorithmsSupported.
+func (mr *MockConfigurationMockRecorder) RequestObjectSigningAlgorithmsSupported() *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "RequestObjectSigningAlgorithmsSupported", reflect.TypeOf((*MockConfiguration)(nil).RequestObjectSigningAlgorithmsSupported))
+}
+
+// RequestObjectSupported mocks base method.
+func (m *MockConfiguration) RequestObjectSupported() bool {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "RequestObjectSupported")
+	ret0, _ := ret[0].(bool)
+	return ret0
+}
+
+// RequestObjectSupported indicates an expected call of RequestObjectSupported.
+func (mr *MockConfigurationMockRecorder) RequestObjectSupported() *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "RequestObjectSupported", reflect.TypeOf((*MockConfiguration)(nil).RequestObjectSupported))
+}
+
+// RevocationAuthMethodPrivateKeyJWTSupported mocks base method.
+func (m *MockConfiguration) RevocationAuthMethodPrivateKeyJWTSupported() bool {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "RevocationAuthMethodPrivateKeyJWTSupported")
+	ret0, _ := ret[0].(bool)
+	return ret0
+}
+
+// RevocationAuthMethodPrivateKeyJWTSupported indicates an expected call of RevocationAuthMethodPrivateKeyJWTSupported.
+func (mr *MockConfigurationMockRecorder) RevocationAuthMethodPrivateKeyJWTSupported() *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "RevocationAuthMethodPrivateKeyJWTSupported", reflect.TypeOf((*MockConfiguration)(nil).RevocationAuthMethodPrivateKeyJWTSupported))
+}
+
+// RevocationEndpoint mocks base method.
+func (m *MockConfiguration) RevocationEndpoint() op.Endpoint {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "RevocationEndpoint")
+	ret0, _ := ret[0].(op.Endpoint)
+	return ret0
+}
+
+// RevocationEndpoint indicates an expected call of RevocationEndpoint.
+func (mr *MockConfigurationMockRecorder) RevocationEndpoint() *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "RevocationEndpoint", reflect.TypeOf((*MockConfiguration)(nil).RevocationEndpoint))
+}
+
+// RevocationEndpointSigningAlgorithmsSupported mocks base method.
+func (m *MockConfiguration) RevocationEndpointSigningAlgorithmsSupported() []string {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "RevocationEndpointSigningAlgorithmsSupported")
+	ret0, _ := ret[0].([]string)
+	return ret0
+}
+
+// RevocationEndpointSigningAlgorithmsSupported indicates an expected call of RevocationEndpointSigningAlgorithmsSupported.
+func (mr *MockConfigurationMockRecorder) RevocationEndpointSigningAlgorithmsSupported() *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "RevocationEndpointSigningAlgorithmsSupported", reflect.TypeOf((*MockConfiguration)(nil).RevocationEndpointSigningAlgorithmsSupported))
+}
+
 // SupportedUILocales mocks base method.
 func (m *MockConfiguration) SupportedUILocales() []language.Tag {
 	m.ctrl.T.Helper()
@@ -217,6 +315,20 @@ func (mr *MockConfigurationMockRecorder) TokenEndpoint() *gomock.Call {
 	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "TokenEndpoint", reflect.TypeOf((*MockConfiguration)(nil).TokenEndpoint))
 }
 
+// TokenEndpointSigningAlgorithmsSupported mocks base method.
+func (m *MockConfiguration) TokenEndpointSigningAlgorithmsSupported() []string {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "TokenEndpointSigningAlgorithmsSupported")
+	ret0, _ := ret[0].([]string)
+	return ret0
+}
+
+// TokenEndpointSigningAlgorithmsSupported indicates an expected call of TokenEndpointSigningAlgorithmsSupported.
+func (mr *MockConfigurationMockRecorder) TokenEndpointSigningAlgorithmsSupported() *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "TokenEndpointSigningAlgorithmsSupported", reflect.TypeOf((*MockConfiguration)(nil).TokenEndpointSigningAlgorithmsSupported))
+}
+
 // UserinfoEndpoint mocks base method.
 func (m *MockConfiguration) UserinfoEndpoint() op.Endpoint {
 	m.ctrl.T.Helper()

pkg/op/mock/generate.go

@@ -5,3 +5,4 @@ package mock
 //go:generate mockgen -package mock -destination ./client.mock.go github.com/caos/oidc/pkg/op Client
 //go:generate mockgen -package mock -destination ./configuration.mock.go github.com/caos/oidc/pkg/op Configuration
 //go:generate mockgen -package mock -destination ./signer.mock.go github.com/caos/oidc/pkg/op Signer
+//go:generate mockgen -package mock -destination ./key.mock.go github.com/caos/oidc/pkg/op KeyProvider

pkg/op/mock/key.mock.go

@@ -0,0 +1,51 @@
+// Code generated by MockGen. DO NOT EDIT.
+// Source: github.com/caos/oidc/pkg/op (interfaces: KeyProvider)
+
+// Package mock is a generated GoMock package.
+package mock
+
+import (
+	context "context"
+	reflect "reflect"
+
+	gomock "github.com/golang/mock/gomock"
+	jose "gopkg.in/square/go-jose.v2"
+)
+
+// MockKeyProvider is a mock of KeyProvider interface.
+type MockKeyProvider struct {
+	ctrl     *gomock.Controller
+	recorder *MockKeyProviderMockRecorder
+}
+
+// MockKeyProviderMockRecorder is the mock recorder for MockKeyProvider.
+type MockKeyProviderMockRecorder struct {
+	mock *MockKeyProvider
+}
+
+// NewMockKeyProvider creates a new mock instance.
+func NewMockKeyProvider(ctrl *gomock.Controller) *MockKeyProvider {
+	mock := &MockKeyProvider{ctrl: ctrl}
+	mock.recorder = &MockKeyProviderMockRecorder{mock}
+	return mock
+}
+
+// EXPECT returns an object that allows the caller to indicate expected use.
+func (m *MockKeyProvider) EXPECT() *MockKeyProviderMockRecorder {
+	return m.recorder
+}
+
+// GetKeySet mocks base method.
+func (m *MockKeyProvider) GetKeySet(arg0 context.Context) (*jose.JSONWebKeySet, error) {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "GetKeySet", arg0)
+	ret0, _ := ret[0].(*jose.JSONWebKeySet)
+	ret1, _ := ret[1].(error)
+	return ret0, ret1
+}
+
+// GetKeySet indicates an expected call of GetKeySet.
+func (mr *MockKeyProviderMockRecorder) GetKeySet(arg0 interface{}) *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "GetKeySet", reflect.TypeOf((*MockKeyProvider)(nil).GetKeySet), arg0)
+}

pkg/op/mock/storage.mock.go

@@ -230,6 +230,20 @@ func (mr *MockStorageMockRecorder) Health(arg0 interface{}) *gomock.Call {
 	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "Health", reflect.TypeOf((*MockStorage)(nil).Health), arg0)
 }
 
+// RevokeToken mocks base method.
+func (m *MockStorage) RevokeToken(arg0 context.Context, arg1, arg2, arg3 string) *oidc.Error {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "RevokeToken", arg0, arg1, arg2, arg3)
+	ret0, _ := ret[0].(*oidc.Error)
+	return ret0
+}
+
+// RevokeToken indicates an expected call of RevokeToken.
+func (mr *MockStorageMockRecorder) RevokeToken(arg0, arg1, arg2, arg3 interface{}) *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "RevokeToken", reflect.TypeOf((*MockStorage)(nil).RevokeToken), arg0, arg1, arg2, arg3)
+}
+
 // SaveAuthCode mocks base method.
 func (m *MockStorage) SaveAuthCode(arg0 context.Context, arg1, arg2 string) error {
 	m.ctrl.T.Helper()