ASP.NET和OWIN Cookies Azure Open ID无法正常工作

问题描述

我尝试使用OpenID与Azure AD连接，但我使用的是教程https://docs.microsoft.com/en-us/azure/active-directory/develop/tutorial-v2-asp-webapp中的确切代码，没有运气。

我的创业公司：

public class Startup
{
     string clientId = System.Configuration.ConfigurationManager.AppSettings["ClientId"];
     string redirectUri = System.Configuration.ConfigurationManager.AppSettings["RedirectUri"];
     static string tenant = System.Configuration.ConfigurationManager.AppSettings["Tenant"];
     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
        {
            ClientId = clientId,Authority = authority,RedirectUri = redirectUri,PostlogoutRedirectUri = redirectUri,Scope = OpenIdConnectScope.OpenIdProfile,ResponseType = OpenIdConnectResponseType.IdToken,TokenValidationParameters = new TokenValidationParameters()
            {
                ValidateIssuer = true
            },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);
}

我的登录页面代码：

protected void Page_Load(object sender,EventArgs e)
    {
        try
        {
            if (!IsPostBack)
            {
                if (!Request.IsAuthenticated)
                {
                    HttpContext.Current.GetowinContext().Authentication.Challenge(
                        new AuthenticationProperties { RedirectUri = "/AMS/Dashboard" },OpenIdConnectAuthenticationDefaults.AuthenticationType);
                }
                else
                {
                    var userClaims = User.Identity as System.Security.Claims.ClaimsIdentity;
                    lblErrorMessage.InnerHtml = userClaims?.FindFirst("preferred_username")?.Value;
                    //check user info,and create session then redirect to Dashboard
                }
            }
        }
        catch (Exception ex)
        {
             //handle error
        }
  }

我的网站结构有点复杂，如下所示：

我在服务器x上有一个网站：mydomain.com 我在服务器y中有一个子域：subdomain.mydomain.com 而且我的网站AMS在服务器z上，并重定向到subdomain.mydomain.com/AMS

现在要解决跨站点Cookie，我会在网络配置中使用以下内容

<outboundRules>
    <rule name="Ensure httpOnly Cookies" preCondition="Missing httpOnly cookie">
        <match serverVariable="RESPONSE_Set_Cookie" pattern="^(.*; path=/)" negate="false" />
        <action type="Rewrite" value="{R:1}AMS; SameSite=none; secure; HttpOnly" />
    </rule>
    <preConditions>
        <preCondition name="Missing httpOnly cookie">
            <!-- Don't remove the first line! -->
            <add input="{RESPONSE_Set_Cookie}" pattern="." />
            <add input="{RESPONSE_Set_Cookie}" pattern="; SameSite=none; secure; HttpOnly" negate="true" />
        </preCondition>
    </preConditions>
</outboundRules>

我的问题是Request.IsAuthenticated始终为false，因此该页面始终重定向到Microsoft登录页面

有什么想法吗？ 预先感谢

解决方法

代替重写规则试试这个：

app.SetDefaultSignInAsAuthenticationType(CookieAuthenticationDefaults.AuthenticationType);
app.UseCookieAuthentication(new CookieAuthenticationOptions
{
    CookieSameSite = Microsoft.Owin.SameSiteMode.None,CookieSecure = CookieSecureOption.Always
});

还要确保设置了安全属性

来自https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Set-Cookie/SameSite

SameSite NONE - Cookie 将在所有上下文中发送，即响应第一方和跨域请求。如果设置了 SameSite=None，则还必须设置 cookie Secure 属性（否则 cookie 将被阻止）。