office365 - 如何将 Okta 断言传递给 Microsoft STS 以获取授权 token

Question

我们使用 Okta 作为 Microsoft Office 365 和基于 PHP 的 Web 应用程序的 IDP。我们需要从 PHP 执行 REST API 调用，以使用 Okta 身份验证 token 进行身份验证来获取共享点内容。

所以根据 http://www.threewill.com/wp-content/uploads/MSOnlineAuthentication.png ，可以将 SAML 断言发送到 Microsoft 在线 STS 以获取身份验证 token ，该 token 可用于从共享点获取身份验证 cookie。当我们将 Okta 断言传递给 Microsoft 在线 STS 时，它会引发 WebSSO 无效断言。找不到断言无效的确切原因。

用于发送到 Microsoft online STS 的 SOAP Envelop 是

<s:Envelope xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:a="http://www.w3.org/2005/08/addressing" xmlns:u="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd">
<s:Header>
<a:Action s:mustUnderstand="1">
http://schemas.xmlsoap.org/ws/2005/02/trust/RST/Issue
</a:Action>
<a:ReplyTo>
<a:Address>http://www.w3.org/2005/08/addressing/anonymous</a:Address>
</a:ReplyTo>
<a:To s:mustUnderstand="1">https://login.microsoftonline.com/extSTS.srf</a:To>
<o:Security xmlns:o="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd" xmlns:saml2p="urn:oasis:names:tc:SAML:2.0:protocol" xmlns:xs="http://www.w3.org/2001/XMLSchema" s:mustUnderstand="1">
<o:SecurityTokenReference xmlns:saml2="urn:oasis:names:tc:SAML:2.0:assertion">
<o:Embedded>
<saml2:Assertion xmlns:saml2="urn:oasis:names:tc:SAML:2.0:assertion" xmlns:xs="http://www.w3.org/2001/XMLSchema" ID="id29170470933790951475177561" IssueInstant="2015-04-27T22:35:53.492Z" Version="2.0">
<saml2:Issuer xmlns:saml2="urn:oasis:names:tc:SAML:2.0:assertion" Format="urn:oasis:names:tc:SAML:2.0:nameid-format:entity">http://www.okta.com/issueID</saml2:Issuer>
<ds:Signature xmlns:ds="http://www.w3.org/2000/09/xmldsig#">
<ds:SignedInfo>
<ds:CanonicalizationMethod Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"/>
<ds:SignatureMethod Algorithm="http://www.w3.org/2000/09/xmldsig#rsa-sha1"/>
<ds:Reference URI="#id29170470933790951475177561">
<ds:Transforms>
<ds:Transform Algorithm="http://www.w3.org/2000/09/xmldsig#enveloped-signature"/>
<ds:Transform Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#">
<ec:InclusiveNamespaces xmlns:ec="http://www.w3.org/2001/10/xml-exc-c14n#" PrefixList="xs"/>
</ds:Transform>
</ds:Transforms>
<ds:DigestMethod Algorithm="http://www.w3.org/2000/09/xmldsig#sha1"/>
<ds:DigestValue>...</ds:DigestValue>
</ds:Reference>
</ds:SignedInfo>
<ds:SignatureValue>
...
</ds:SignatureValue>
<ds:KeyInfo>
<ds:X509Data>
<ds:X509Certificate>
...
</ds:X509Certificate>
</ds:X509Data>
</ds:KeyInfo>
</ds:Signature>
<saml2:Subject xmlns:saml2="urn:oasis:names:tc:SAML:2.0:assertion">
<saml2:NameID Format="urn:oasis:names:tc:SAML:2.0:nameid-format:transient">email@example.com</saml2:NameID>
<saml2:SubjectConfirmation Method="urn:oasis:names:tc:SAML:2.0:cm:bearer">
<saml2:SubjectConfirmationData InResponseTo="" NotOnOrAfter="2015-04-27T22:40:53.492Z" Recipient=""/>
</saml2:SubjectConfirmation>
</saml2:Subject>
<saml2:Conditions xmlns:saml2="urn:oasis:names:tc:SAML:2.0:assertion" NotBefore="2015-04-27T22:30:53.492Z" NotOnOrAfter="2015-04-27T22:40:53.492Z">
<saml2:AudienceRestriction>
<saml2:Audience>...</saml2:Audience>
</saml2:AudienceRestriction>
</saml2:Conditions>
<saml2:AuthnStatement xmlns:saml2="urn:oasis:names:tc:SAML:2.0:assertion" AuthnInstant="2015-04-27T22:35:53.492Z" SessionIndex="">
<saml2:AuthnContext>
<saml2:AuthnContextClassRef>
urn:oasis:names:tc:SAML:2.0:ac:classes:PasswordProtectedTransport
</saml2:AuthnContextClassRef>
</saml2:AuthnContext>
</saml2:AuthnStatement>
<saml2:AttributeStatement xmlns:saml2="urn:oasis:names:tc:SAML:2.0:assertion">
<saml2:Attribute Name="uid" NameFormat="urn:oasis:names:tc:SAML:2.0:attrname-format:unspecified">
<saml2:AttributeValue xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:type="xs:string">email@example.com</saml2:AttributeValue>
</saml2:Attribute>
</saml2:AttributeStatement>
</saml2:Assertion>
</o:Embedded>
</o:SecurityTokenReference>
</o:Security>
</s:Header>
<s:Body>
<t:RequestSecurityToken xmlns:t="http://schemas.xmlsoap.org/ws/2005/02/trust">
<wsp:AppliesTo xmlns:wsp="http://schemas.xmlsoap.org/ws/2004/09/policy">
<a:EndpointReference>
<a:Address/>
</a:EndpointReference>
</wsp:AppliesTo>
<t:KeyType>
http://schemas.xmlsoap.org/ws/2005/05/identity/NoProofKey
</t:KeyType>
<t:RequestType>http://schemas.xmlsoap.org/ws/2005/02/trust/Issue</t:RequestType>
<t:TokenType>urn:oasis:names:tc:SAML:2.0:assertion</t:TokenType>
</t:RequestSecurityToken>
</s:Body>
</s:Envelope>

Answer 1

直到最近，这还是一个没有记录的困惑。

但 SharePoint 工程部门的某个人终于在这里发表了一篇有值(value)的博客:https://blogs.technet.microsoft.com/sharepointdevelopersupport/2018/02/07/sharepoint-online-active-authentication/

此博客提供了一个 powershell 脚本，可以获取用户的 SPOIDCRL cookie(当向 SharePoint 发出请求时，它会以该用户身份“登录”)。

这是 Gist 中该博客的 powershell:https://gist.github.com/nddipiazza/1a810cd6f94782760933163b077dade7

那么看看 powershell 的 Get-BinarySecurityToken 方法。这将向您展示如何将您的 saml 断言转换为二进制搜索 token 。然后按照代码路径了解如何将该二进制搜索 token 转换为 SPOIDCRL cookie，您就可以开始了!