/*
   Copyright (c) 2016 VMware, Inc. All Rights Reserved.
   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.
*/

package auth

import (
	"net/http"
)

// Credential ...
type Credential interface {
	// AddAuthorization adds authorization information to request
	AddAuthorization(req *http.Request)
}

// Implements interface Credential
type basicAuthCredential struct {
	username string
	password string
}

// NewBasicAuthCredential ...
func NewBasicAuthCredential(username, password string) Credential {
	return &basicAuthCredential{
		username: username,
		password: password,
	}
}

func (b *basicAuthCredential) AddAuthorization(req *http.Request) {
	req.SetBasicAuth(b.username, b.password)
}

type cookieCredential struct {
	cookie *http.Cookie
}

// NewCookieCredential initialize a cookie based crendential handler, the cookie in parameter will be added to request to registry
// if this crendential is attached to a registry client.
func NewCookieCredential(c *http.Cookie) Credential {
	return &cookieCredential{
		cookie: c,
	}
}

func (c *cookieCredential) AddAuthorization(req *http.Request) {
	req.AddCookie(c.cookie)
}