Outlook加载身份验证失败反对ADFS服务器
问题描述:
- 展望2016
- 的Windows Server 2016
- 微软的Visual Studio社区2017年
问题描述:
我正在开发一个应用于ADFS服务器进行身份验证的Outlook加载项。
在认真执行此处列出的步骤: https://tech.greenhouse.io/2016/08/01/create-adfs-instance-on-azure-virtual-machine.html
我能够通过ADFS在Internet Explorer和Chrome浏览器成功登录外部的ADFS用户。
试图用同样的方式通过Outlook来登录插件我得到,说下面的页面然而,当:
ADFS Login An error occurred An error occurred. Contact your administrator for more information. Error details © 2016 Microsoft
下面是样品日志文件。
Outlook插件:
Add-in successfully started up. User interaction in Outlook ribbon happened. SAML SP login: https://validsslcertdomain.com/saml2/login/?idp=http://adfsserverinazurecloud.com/adfs/services/trust SAML IDP Url: https://adfsserverinazurecloud.com/adfs/ls/?SAMLRequest=jZJNTxsxEIbv/RWWLzntejcSKrWyiwJR1AhKo2RBKrfBOymWvPbWYxPCr8ebpBQuUa8z7/vM5+TipTPsGT1pZ6tRmRcjhla5Vtvf1eiumWfno4v6y4SgM72cxvBkV/gnIgWWjJbkkKh49FY6IE3SQockg5Lr6Y8bOc4LCUToQ8LzD5b+tKf3LjjlDGfTv+4rZyl26Nfon7XCu9VNxZ9C6EkKETFrqSizAJAHHcButMFcuU4MtcYCFAnOZqlrbWGA/bO+y6HdUI5AIVKujIst9H0Or9EfQENamAGzmFVct9lr2M7nv+J18RDV9a5vtilDFHFhKRFDxcdF+TUri6w8b8pSFmfy7NsDZ8vjZJfa7nd8cg2PBxHJ702zzJY/1w1n98db8STg9f4wcl/Ys7nzHYTTyCGSut/spRJtmn/H6/9dZIcBWgggJuJD4fr4HreJvZgtndFqx6bGuO2VRwhY8Q0YQv7eIGeiPhA+/1T9Bg==&RelayState=/ SAML WIA Url: https://adfsserverinazurecloud.com/adfs/ls/wia?SAMLRequest=jZJNTxsxEIbv/RWWLzntejcSKrWyiwJR1AhKo2RBKrfBOymWvPbWYxPCr8ebpBQuUa8z7/vM5+TipTPsGT1pZ6tRmRcjhla5Vtvf1eiumWfno4v6y4SgM72cxvBkV/gnIgWWjJbkkKh49FY6IE3SQockg5Lr6Y8bOc4LCUToQ8LzD5b+tKf3LjjlDGfTv+4rZyl26Nfon7XCu9VNxZ9C6EkKETFrqSizAJAHHcButMFcuU4MtcYCFAnOZqlrbWGA/bO+y6HdUI5AIVKujIst9H0Or9EfQENamAGzmFVct9lr2M7nv+J18RDV9a5vtilDFHFhKRFDxcdF+TUri6w8b8pSFmfy7NsDZ8vjZJfa7nd8cg2PBxHJ702zzJY/1w1n98db8STg9f4wcl/Ys7nzHYTTyCGSut/spRJtmn/H6/9dZIcBWgggJuJD4fr4HreJvZgtndFqx6bGuO2VRwhY8Q0YQv7eIGeiPhA+/1T9Bg==&RelayState=/&client-request-id=a1209b03-ffed-419c-4904-0080000000f4
ADFS服务器:
错误ID:364
Encountered error during federation passive request.
Additional Data
Protocol Name:
Relying Party:
Exception details:
System.FormatException: Invalid length for a Base-64 char array or string.
at System.Convert.FromBase64_Decode(Char* startInputPtr, Int32 inputLength, Byte* startDestPtr, Int32 destLength)
at System.Convert.FromBase64CharPtr(Char* inputPtr, Int32 inputLength)
at System.Convert.FromBase64String(String s)
at Microsoft.IdentityServer.Protocols.Saml.HttpSamlBindingSerializer.DecodeMessageInternal(String message)
at Microsoft.IdentityServer.Protocols.Saml.HttpSamlBindingSerializer.ReadProtocolMessage(String encodedSamlMessage)
at Microsoft.IdentityServer.Protocols.Saml.HttpSamlBindingSerializer.CreateFromNameValueCollection(Uri baseUrl, NameValueCollection collection)
at Microsoft.IdentityServer.Protocols.Saml.HttpRedirectSamlBindingSerializer.ReadMessage(Uri requestUrl, NameValueCollection form)
at Microsoft.IdentityServer.Web.Protocols.Saml.HttpSamlMessageFactory.CreateMessage(WrappedHttpListenerRequest httpRequest)
at Microsoft.IdentityServer.Web.Protocols.Saml.SamlContextFactory.CreateProtocolContextFromRequest(WrappedHttpListenerRequest request, ProtocolContext& protocolContext)
at Microsoft.IdentityServer.Web.Protocols.Saml.SamlProtocolHandler.CreateProtocolContext(WrappedHttpListenerRequest request)
at Microsoft.IdentityServer.Web.PassiveProtocolListener.GetProtocolHandler(WrappedHttpListenerRequest request, ProtocolContext& protocolContext, PassiveProtocolHandler& protocolHandler)
at Microsoft.IdentityServer.Web.PassiveProtocolListener.OnGetContext(WrappedHttpListenerContext context)
这里是关于外接示例代码:
// String definitions
string samlAcs = Properties.Settings.Default.samlAcs;
string samlIdp = Properties.Settings.Default.samlIdp;
string serverUrl = Properties.Settings.Default.serverUrl;
string loginUrl = serverUrl + "/saml2/login/?idp=" + samlIdp;
var acsUrl = serverUrl + samlAcs;
string wiaHtmlBody = "";
HttpResponseMessage response;
try
{
response = await client.GetAsync(loginUrl);
...
try
{
response = await client.GetAsync(response.Headers.Location);
...
var wiaUrl = response.Headers.Location.ToString();
if (wiaUrl[0] == '/') wiaUrl = serverUrl + wiaUrl;
try
{
response = await client.GetAsync(wiaUrl);
response.EnsureSuccessStatusCode();
wiaHtmlBody = await response.Content.ReadAsStringAsync();
...
var wiaDoc = new XmlDocument();
try
{
wiaDoc.Load(new StringReader(wiaHtmlBody));
var samlNode = wiaDoc.DocumentElement.SelectSingleNode("//input[@name='SAMLResponse']");
string samlResponse = samlNode.Attributes["value"].Value;
...
时,预计来自服务器的XML文件,它抛出该异常:
Exception: System.NullReferenceException: Object reference not set to an instance of an object.
类似的问题: https://serverfault.com/questions/753149/ad-fs-3-0-event-id-364-while-creating-mfa-and-sso
问题: 我会采取什么步骤来解决这个问题?
在此先感谢。
答
看来wiaUrl
不是URL编码的,因为您在从response.Headers.Location
中检索它时将其转换为字符串。这将解释为什么base-64解码器失败,因为ADFS首先尝试对SAML请求消息进行URL解码。
换句话说,您必须将URL编码字符串传递给client.GetAsync(wiaUrl)
或URI
对象。