[英]Azure Authentication using OAuth with token in ASP.NET WebForms NOT MVC
我想使用OAuth為我的WebForms實施Azure身份驗證(它對我有用)。 身份驗證后,我需要在服務器端進行驗證的令牌,它將在每個客戶端代碼中進行驗證。 但是認證后我沒有得到令牌
我已經創建了一個啟動類,並使用owin對其進行了配置,並且可以正確地進行身份驗證,但是在身份驗證之后卻無法獲取令牌。
創業班
using Microsoft.Owin;
using Owin;
using Microsoft.IdentityModel.Protocols.OpenIdConnect;
using Microsoft.IdentityModel.Tokens;
using Microsoft.Owin.Security;
using Microsoft.Owin.Security.Cookies;
using Microsoft.Owin.Security.OpenIdConnect;
using Microsoft.Owin.Security.Notifications;
using System;
using System.Threading.Tasks;
[assembly: OwinStartup(typeof(Manager.Startup))]
namespace Manager
{
public class Startup
{
// The Client ID is used by the application to uniquely identify itself to Azure AD.
string clientId = System.Configuration.ConfigurationManager.AppSettings["ClientId"];
// RedirectUri is the URL where the user will be redirected to after they sign in.
string redirectUri = System.Configuration.ConfigurationManager.AppSettings["RedirectUri"];
// Tenant is the tenant ID (e.g. contoso.onmicrosoft.com, or 'common' for multi-tenant)
static string tenant = System.Configuration.ConfigurationManager.AppSettings["Tenant"];
// Authority is the URL for authority, composed by Azure Active Directory v2 endpoint and the tenant name (e.g. https://login.microsoftonline.com/contoso.onmicrosoft.com/v2.0)
string authority = String.Format(System.Globalization.CultureInfo.InvariantCulture, System.Configuration.ConfigurationManager.AppSettings["Authority"], tenant);
/// <summary>
/// Configure OWIN to use OpenIdConnect
/// </summary>
/// <param name="app"></param>
public void Configuration(IAppBuilder app)
{
app.SetDefaultSignInAsAuthenticationType(CookieAuthenticationDefaults.AuthenticationType);
app.UseCookieAuthentication(new CookieAuthenticationOptions());
app.UseOpenIdConnectAuthentication(
new OpenIdConnectAuthenticationOptions
{
// Sets the ClientId, authority, RedirectUri as obtained from web.config
ClientId = clientId,
Authority = authority,
RedirectUri = redirectUri,
// PostLogoutRedirectUri is the page that users will be redirected to after sign-out. In this case, it is using the home page
PostLogoutRedirectUri = redirectUri,
Scope = OpenIdConnectScope.OpenIdProfile,
// ResponseType is set to request the id_token - which contains basic information about the signed-in user
ResponseType = OpenIdConnectResponseType.IdToken,
// ValidateIssuer set to false to allow personal and work accounts from any organization to sign in to your application
// To only allow users from a single organizations, set ValidateIssuer to true and 'tenant' setting in web.config to the tenant name
// To allow users from only a list of specific organizations, set ValidateIssuer to true and use ValidIssuers parameter
TokenValidationParameters = new TokenValidationParameters()
{
ValidateIssuer = false
},
// OpenIdConnectAuthenticationNotifications configures OWIN to send notification of failed authentications to OnAuthenticationFailed method
Notifications = new OpenIdConnectAuthenticationNotifications
{
AuthenticationFailed = OnAuthenticationFailed
}
}
);
}
/// <summary>
/// Handle failed authentication requests by redirecting the user to the home page with an error in the query string
/// </summary>
/// <param name="context"></param>
/// <returns></returns>
private Task OnAuthenticationFailed(AuthenticationFailedNotification<OpenIdConnectMessage, OpenIdConnectAuthenticationOptions> context)
{
context.HandleResponse();
context.Response.Redirect("/?errormessage=" + context.Exception.Message);
return Task.FromResult(0);
}
}
}
頁面加載
protected void Page_Load(object sender, EventArgs e)
{
if (!Request.IsAuthenticated)
{
Context.GetOwinContext().Authentication.Challenge(new AuthenticationProperties { RedirectUri = "/" },
OpenIdConnectAuthenticationDefaults.AuthenticationType);
// below codes are tested but all are giving null or empty string
var claimsIdentity = User.Identity as ClaimsIdentity;
string str = claimsIdentity?.Claims.FirstOrDefault(c => c.Type == ClaimTypes.Name)?.Value;
string accessToken = claimsIdentity?.Claims.FirstOrDefault(c => c.Type == "access_token")?.Value;
string idToken = claimsIdentity?.Claims.FirstOrDefault(c => c.Type == "id_token")?.Value;
string refreshToken = claimsIdentity?.Claims.FirstOrDefault(c => c.Type == "refresh_token")?.Value;
str = User.Identity.Name;
GetTokenForApplication().Wait(); ;
}
}
預期結果是認證后的令牌認證后,實際結果未獲得令牌
令牌不會包含在ClaimsIdentity中。 使用OpenIdConnect協議在asp.net中獲取訪問令牌。 您需要重寫AuthorizationCodeReceived
方法以獲得訪問令牌。
using System;
using System.Configuration;
using System.Threading.Tasks;
using Microsoft.Owin;
using Owin;
using Microsoft.IdentityModel.Protocols;
using Microsoft.Owin.Security;
using Microsoft.Owin.Security.Cookies;
using Microsoft.Owin.Security.OpenIdConnect;
using Microsoft.Owin.Security.Notifications;
using System.IdentityModel.Claims;
using ToDoGraphDemo.TokenStorage;
using System.Web;
using Microsoft.Identity.Client;
[assembly: OwinStartup(typeof(ToDoGraphDemo.Startup))]
namespace ToDoGraphDemo
{
public class Startup
{
// The Client ID is used by the application to uniquely identify itself to Azure AD.
string clientId = ConfigurationManager.AppSettings["ClientId"];
// RedirectUri is the URL where the user will be redirected to after they sign in.
string redirectUri = ConfigurationManager.AppSettings["RedirectUri"];
// Tenant is the tenant ID (e.g. contoso.onmicrosoft.com, or 'common' for multi-tenant)
static string tenant = ConfigurationManager.AppSettings["Tenant"];
// Authority is the URL for authority, composed by Azure Active Directory v2 endpoint
// and the tenant name (e.g. https://login.microsoftonline.com/contoso.onmicrosoft.com/v2.0)
string authority = String.Format(System.Globalization.CultureInfo.InvariantCulture,
ConfigurationManager.AppSettings["Authority"], tenant);
// Scopes are the specific permissions we are requesting for the application.
string scopes = ConfigurationManager.AppSettings["Scopes"];
// ClientSecret is a password associated with the application in the authority.
// It is used to obtain an access token for the user on server-side apps.
string clientSecret = ConfigurationManager.AppSettings["ClientSecret"];
/// <summary>
/// Configure OWIN to use OpenIdConnect
/// </summary>
/// <param name="app"></param>
public void Configuration(IAppBuilder app)
{
app.SetDefaultSignInAsAuthenticationType(CookieAuthenticationDefaults.AuthenticationType);
app.UseCookieAuthentication(new CookieAuthenticationOptions());
app.UseOpenIdConnectAuthentication(new OpenIdConnectAuthenticationOptions
{
ClientId = clientId,
Authority = authority,
RedirectUri = redirectUri,
PostLogoutRedirectUri = redirectUri,
Scope = "openid email profile offline_access " + scopes,
// TokenValidationParameters allows you to control the users who are allowed to sign in
// to your application. In this demo we only allow users associated with the specified tenant.
// If ValidateIssuer is set to false, anybody with a personal or work Microsoft account can
// sign in.
TokenValidationParameters = new System.IdentityModel.Tokens.TokenValidationParameters()
{
ValidateIssuer = true,
ValidIssuer = tenant
},
// OpenIdConnect event handlers/callbacks.
Notifications = new OpenIdConnectAuthenticationNotifications
{
AuthorizationCodeReceived = OnAuthorizationCodeReceived,
AuthenticationFailed = OnAuthenticationFailed
}
});
}
/// <summary>
/// Handle authorization codes by creating a token cache then requesting and storing an access token
/// for the user.
/// </summary>
/// <param name="context"></param>
/// <returns></returns>
private async Task OnAuthorizationCodeReceived(AuthorizationCodeReceivedNotification context)
{
string userId = context.AuthenticationTicket.Identity.FindFirst(ClaimTypes.NameIdentifier).Value;
TokenCache userTokenCache = new SessionTokenCache(
userId, context.OwinContext.Environment["System.Web.HttpContextBase"] as HttpContextBase).GetMsalCacheInstance();
// A ConfidentialClientApplication is a server-side client application that can securely store a client secret,
// which is not accessible by the user.
ConfidentialClientApplication cca = new ConfidentialClientApplication(
clientId, redirectUri, new ClientCredential(clientSecret), userTokenCache, null);
string[] scopes = this.scopes.Split(new char[] { ' ' });
AuthenticationResult result = await cca.AcquireTokenByAuthorizationCodeAsync(context.Code, scopes);
var accessToken = result.AccessToken;
}
/// <summary>
/// Handle failed authentication requests by redirecting the user to the home page with an error in the query string.
/// </summary>
/// <param name="context"></param>
/// <returns></returns>
private Task OnAuthenticationFailed(AuthenticationFailedNotification<OpenIdConnectMessage, OpenIdConnectAuthenticationOptions> context)
{
context.HandleResponse();
context.Response.Redirect("/?errormessage=" + context.Exception.Message);
return Task.FromResult(0);
}
}
}
這是一個示例供您參考。
您的Page_Load使用錯誤的邏輯。 將注釋下的所有代碼(//以下代碼...)移至“ if!Request.IsAuthenticated”的“ else”子句。 if語句會將用戶重定向到AAD進行身份驗證。 驗證之后,再次執行該方法時,您將進入“ else”子句。 此外,當您進入“ else”子句時,id_token已通過驗證並轉換為ClaimsPrincipal。 id_token中出現的所有聲明都被轉換為其聲明包中的單個項目-只需遍歷該包以查看其中的內容(最好還是使用此示例 )。 您可以在Fiddler中看到網絡上正在發生的一切。
由於您僅在進行身份驗證(作用域= OpenIdProfile和responsetype = idToken),因此不會獲得任何刷新或訪問令牌。 僅當您的應用需要調用另一個API時才需要后者。 通過AAD保持會話cookie來完成刷新。 您還應該創建一個用戶authn cookie,該cookie與id_token同時有效,並在過期時重做身份驗證。 此示例特定於WebForms。
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