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context.go
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/
context.go
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// Copyright 2023 Cisco Systems, Inc. and its affiliates
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
// SPDX-License-Identifier: Apache-2.0
package oauth2
import (
"context"
"github.com/cisco-open/go-lanai/pkg/security"
)
/******************************
security.Authentication
******************************/
// Authentication extends security.Authentication
type Authentication interface {
security.Authentication
UserAuthentication() security.Authentication
OAuth2Request() OAuth2Request
AccessToken() AccessToken
}
type AuthenticationOptions func(opt *AuthOption)
type AuthOption struct {
Request OAuth2Request
UserAuth security.Authentication
Token AccessToken
Details interface{}
}
// authentication
type authentication struct {
Request OAuth2Request `json:"request"`
UserAuth security.Authentication `json:"userAuth"`
AuthState security.AuthenticationState `json:"state"`
token AccessToken
details interface{}
}
func NewAuthentication(opts ...AuthenticationOptions) Authentication {
config := AuthOption{}
for _, opt := range opts {
opt(&config)
}
return &authentication{
Request: config.Request,
UserAuth: config.UserAuth,
AuthState: calculateState(config.Request, config.UserAuth),
token: config.Token,
details: config.Details,
}
}
func (a *authentication) Principal() interface{} {
if a.UserAuth == nil {
return a.Request.ClientId()
}
return a.UserAuth.Principal()
}
func (a *authentication) Permissions() security.Permissions {
if a.UserAuth == nil {
return map[string]interface{}{}
}
return a.UserAuth.Permissions()
}
func (a *authentication) State() security.AuthenticationState {
return a.AuthState
}
func (a *authentication) Details() interface{} {
return a.details
}
func (a *authentication) UserAuthentication() security.Authentication {
return a.UserAuth
}
func (a *authentication) OAuth2Request() OAuth2Request {
return a.Request
}
func (a *authentication) AccessToken() AccessToken {
return a.token
}
func calculateState(req OAuth2Request, userAuth security.Authentication) security.AuthenticationState {
if req != nil && req.Approved() {
if userAuth != nil {
return userAuth.State()
}
return security.StateAuthenticated
} else if userAuth != nil {
return security.StatePrincipalKnown
}
return security.StateAnonymous
}
/******************************
UserAuthentication
******************************/
type UserAuthentication interface {
security.Authentication
Subject() string
DetailsMap() map[string]interface{}
}
type UserAuthOptions func(opt *UserAuthOption)
type UserAuthOption struct {
Principal string
Permissions map[string]interface{}
State security.AuthenticationState
Details map[string]interface{}
}
// userAuthentication implements security.Authentication and UserAuthentication.
// it represents basic information that could be typically extracted from JWT claims
// userAuthentication is also used for serializing/deserializing
type userAuthentication struct {
SubjectVal string `json:"principal"`
PermissionVal map[string]interface{} `json:"permissions"`
StateVal security.AuthenticationState `json:"state"`
DetailsVal map[string]interface{} `json:"details"`
}
func NewUserAuthentication(opts ...UserAuthOptions) *userAuthentication {
opt := UserAuthOption{
Permissions: map[string]interface{}{},
Details: map[string]interface{}{},
}
for _, f := range opts {
f(&opt)
}
return &userAuthentication{
SubjectVal: opt.Principal,
PermissionVal: opt.Permissions,
StateVal: opt.State,
DetailsVal: opt.Details,
}
}
func (a *userAuthentication) Principal() interface{} {
return a.SubjectVal
}
func (a *userAuthentication) Permissions() security.Permissions {
return a.PermissionVal
}
func (a *userAuthentication) State() security.AuthenticationState {
return a.StateVal
}
func (a *userAuthentication) Details() interface{} {
return a.DetailsVal
}
func (a *userAuthentication) Subject() string {
return a.SubjectVal
}
func (a *userAuthentication) DetailsMap() map[string]interface{} {
return a.DetailsVal
}
/*********************
Timeout Support
*********************/
type TimeoutApplier interface {
ApplyTimeout(ctx context.Context, sessionId string) (valid bool, err error)
}