我正在实施一个允许用户使用 SAML2 IDP 登录的 SP。我正在使用 ASP.NET Core 和 Sustainsys Saml2 包实现 SP。我们正在使用 OWIN 中间件。登录效果很好。我添加了一个证书,整个 ting 作为一个 azure 网站运行。我的问题是如果 IDP 发送注销事件,则检测哪个用户已注销。
我们在登录时获得 SessionIndex 和 LogoutNameIdentifier,但在注销时却没有。
在浏览器中使用 SAML2 跟踪器,我看到我从 IDP 收到了一个注销包,如下所示:
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<saml2p:LogoutRequest
xmlns:saml2p="urn:oasis:names:tc:SAML:2.0:protocol"
Destination="https://example.com/Saml2/Logout"
ID="_0498f5109d6c09a3de3dc5a7ee6ef34bdd"
IssueInstant="2020-10-11T15:01:46.408Z" Version="2.0">
<saml2:Issuer xmlns:saml2="urn:oasis:names:tc:SAML:2.0:assertion">
https://my.testidp.com/samlv2/idp/metadata/0/30
</saml2:Issuer>
<saml2:NameID
xmlns:saml2="urn:oasis:names:tc:SAML:2.0:assertion"
Format="urn:oasis:names:tc:SAML:2.0:nameid-format:transient">
_041d2ec8046088eed3567c8761a925b48e
</saml2:NameID>
</saml2p:LogoutRequest>
在 Startup.cs 中,我为注销事件添加了一个事件处理程序,名为LogoutCommandResultCreated
. 它看起来像这样:(有点简化)
public void ConfigureServices(IServiceCollection services)
{
var authenticationBuilder = services.AddAuthentication(options =>
{
options.DefaultScheme = "Cookies";
options.DefaultChallengeScheme = "oidc";
options.DefaultScheme = CookieAuthenticationDefaults.AuthenticationScheme;
options.DefaultChallengeScheme = OpenIdConnectDefaults.AuthenticationScheme;
});
authenticationBuilder.AddCookie("Cookies");
string authenticationScheme = $"{configheader.Name}.saml2";
authenticationBuilder.AddSaml2(authenticationScheme, options =>
{
...
var spOptions = new SPOptions
{
EntityId = new EntityId(entityId),
Organization = myorganization,
MinIncomingSigningAlgorithm = "http://www.w3.org/2000/09/xmldsig#rsa-sha1",
ModulePath = "/Saml2",
ReturnUrl = new Uri("/auth/saml2/", UriKind.Relative)
};
spOptions.ServiceCertificates.Add(mycertificate);
options.SPOptions = spOptions;
options.Notifications.LogoutCommandResultCreated = commandResult =>
{
// LOGOUT TRIGGERED.
logger.LogDebug(Newtonsoft.Json.JsonConvert.SerializeObject(commandResult));
// TODO: What to do with commandResult?
};
commandResult 的 json 序列化的输出并没有给我太多:
{"HttpStatusCode":303,
"Cacheability":1,
"Location":"https://my.testidp.com/samlv2/idp/sloresp/0/30?mgvhostparam=0
&SAMLResponse=jJHLasMwEEX3hf6D0d6W%2FGws7JTSbAL....kd8%2BK%2Fh7%2B8gcAAP%2F%2FAwA%3D
&igAlg=http%3A%2F%2Fwww.w3.org%2F2001%2F04%2Fxmldsig-more%23rsa-sha256
&Signature=nmZApcBYHbsnNruq...duQA%3D",
"Principal":null,
"SessionNotOnOrAfter":null,
"Content":null,"ContentType":null,
"RelayData":null,"TerminateLocalSession":true,
"SetCookieName":null,
"SetCookieSecureFlag":false,
"RelayState":null,
"RequestState":null,
"ClearCookieName":null,
"HandledResult":false,
"Headers":{}}
- 这是从 IDP 检测注销事件的正确方法吗?
- 如何解释 commandResult?
- 最重要的是,我如何找到已从 IDP 注销的用户?