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//-----------------------------------------------------------------------
// <copyright file="AuthenticationOnlyCookieOAuthTokenManager.cs" company="Microsoft">
// Copyright (c) Microsoft. All rights reserved.
// </copyright>
//-----------------------------------------------------------------------
namespace DotNetOpenAuth.AspNet.Clients {
using System;
using System.Text;
using System.Web;
using System.Web.Security;
/// <summary>
/// Stores OAuth tokens in the current request's cookie
/// </summary>
public class AuthenticationOnlyCookieOAuthTokenManager : IOAuthTokenManager {
/// <summary>
/// Key used for token cookie
/// </summary>
private const string TokenCookieKey = "OAuthTokenSecret";
/// <summary>
/// Primary request context.
/// </summary>
private readonly HttpContextBase primaryContext;
/// <summary>
/// Initializes a new instance of the <see cref="AuthenticationOnlyCookieOAuthTokenManager"/> class.
/// </summary>
public AuthenticationOnlyCookieOAuthTokenManager() {
}
/// <summary>
/// Initializes a new instance of the <see cref="AuthenticationOnlyCookieOAuthTokenManager"/> class.
/// </summary>
/// <param name="context">The current request context.</param>
public AuthenticationOnlyCookieOAuthTokenManager(HttpContextBase context) {
this.primaryContext = context;
}
/// <summary>
/// Gets the effective HttpContext object to use.
/// </summary>
private HttpContextBase Context {
get {
return this.primaryContext ?? new HttpContextWrapper(HttpContext.Current);
}
}
/// <summary>
/// Gets the token secret from the specified token.
/// </summary>
/// <param name="token">The token.</param>
/// <returns>
/// The token's secret
/// </returns>
public string GetTokenSecret(string token) {
HttpCookie cookie = this.Context.Request.Cookies[TokenCookieKey];
if (cookie == null || string.IsNullOrEmpty(cookie.Values[token])) {
return null;
}
byte[] cookieBytes = HttpServerUtility.UrlTokenDecode(cookie.Values[token]);
byte[] clearBytes = MachineKeyUtil.Unprotect(cookieBytes, TokenCookieKey, "Token:" + token);
string secret = Encoding.UTF8.GetString(clearBytes);
return secret;
}
/// <summary>
/// Replaces the request token with access token.
/// </summary>
/// <param name="requestToken">The request token.</param>
/// <param name="accessToken">The access token.</param>
/// <param name="accessTokenSecret">The access token secret.</param>
public void ReplaceRequestTokenWithAccessToken(string requestToken, string accessToken, string accessTokenSecret) {
var cookie = new HttpCookie(TokenCookieKey) {
Value = string.Empty,
Expires = DateTime.UtcNow.AddDays(-5)
};
this.Context.Response.Cookies.Set(cookie);
}
/// <summary>
/// Stores the request token together with its secret.
/// </summary>
/// <param name="requestToken">The request token.</param>
/// <param name="requestTokenSecret">The request token secret.</param>
public void StoreRequestToken(string requestToken, string requestTokenSecret) {
var cookie = new HttpCookie(TokenCookieKey);
if (FormsAuthentication.RequireSSL) {
cookie.Secure = true;
}
byte[] cookieBytes = Encoding.UTF8.GetBytes(requestTokenSecret);
var secretBytes = MachineKeyUtil.Protect(cookieBytes, TokenCookieKey, "Token:" + requestToken);
cookie.Values[requestToken] = HttpServerUtility.UrlTokenEncode(secretBytes);
this.Context.Response.Cookies.Set(cookie);
}
}
}
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