php - 使用 Laravel 基于 SAML 的单点登录

Question

我正在为其中一个 php 网络应用程序实现基于 SAML 的 SSO。我正在使用谷歌作为 IDP。我用过 Laravel 5 - Saml2插件并按照其文档中给出的步骤进行配置。我还使用给定的步骤在谷歌管理控制台中将此应用添加为 SAML 应用 here并在 saml2_settings.php 中配置了 entityId 和 acs url。但是我无法配置 x509cert 证书。当我点击登录 url 时，用户被重定向到 google 进行身份验证，但是当我输入凭据时，它不会返回到应用程序并给出以下错误:

403. That’s an error.

Error: app_not_configured_for_user

Service is not configured for this user.

以下是我的 saml2_settings 文件:

'sp' => array(

    // Specifies constraints on the name identifier to be used to
    // represent the requested subject.
    // Take a look on lib/Saml2/Constants.php to see the NameIdFormat supported
    'NameIDFormat' => 'urn:oasis:names:tc:SAML:2.0:nameid-format:persistent',

    // Usually x509cert and privateKey of the SP are provided by files placed at
    // the certs folder. But we can also provide them with the following parameters
    'x509cert' => 'I ADDED x509certs here which I downloaded from google',
    'privateKey' => '',

    //LARAVEL - You don't need to change anything else on the sp
    // Identifier of the SP entity  (must be a URI)
    'entityId' => 'snipeit', //LARAVEL: This would be set to saml_metadata route
    // Specifies info about where and how the <AuthnResponse> message MUST be
    // returned to the requester, in this case our SP.
    'assertionConsumerService' => array(
        // URL Location where the <Response> from the IdP will be returned
        'url' => 'http://dev.sb.com/snipeit/public/account/profile', //LARAVEL: This would be set to saml_acs route
        //SAML protocol binding to be used when returning the <Response>
        //message.  Onelogin Toolkit supports for this endpoint the
        //HTTP-Redirect binding only
        'binding' => 'urn:oasis:names:tc:SAML:2.0:bindings:HTTP-POST',
    ),
    // Specifies info about where and how the <Logout Response> message MUST be
    // returned to the requester, in this case our SP.
    'singleLogoutService' => array(
        // URL Location where the <Response> from the IdP will be returned
        'url' => '', //LARAVEL: This would be set to saml_sls route
        // SAML protocol binding to be used when returning the <Response>
        // message.  Onelogin Toolkit supports for this endpoint the
        // HTTP-Redirect binding only
        'binding' => 'urn:oasis:names:tc:SAML:2.0:bindings:HTTP-Redirect',
    ),
),

// Identity Provider Data that we want connect with our SP
'idp' => array(
    // Identifier of the IdP entity  (must be a URI)
    'entityId' => '',
    // SSO endpoint info of the IdP. (Authentication Request protocol)
    'singleSignOnService' => array(
        // URL Target of the IdP where the SP will send the Authentication Request Message
        'url' => $idp_host,
        // SAML protocol binding to be used when returning the <Response>
        // message.  Onelogin Toolkit supports for this endpoint the
        // HTTP-POST binding only
        'binding' => 'urn:oasis:names:tc:SAML:2.0:bindings:HTTP-Redirect',
    ),
    // SLO endpoint info of the IdP.
    'singleLogoutService' => array(
        // URL Location of the IdP where the SP will send the SLO Request
        'url' => $idp_host . '/saml2/idp/SingleLogoutService.php',
        // SAML protocol binding to be used when returning the <Response>
        // message.  Onelogin Toolkit supports for this endpoint the
        // HTTP-Redirect binding only
        'binding' => 'urn:oasis:names:tc:SAML:2.0:bindings:HTTP-Redirect',
    ),
    // Public x509 certificate of the IdP
    'x509cert' => 'SAME CERTIFICATES I ADDED HERE AS WELL',        /*
     *  Instead of use the whole x509cert you can use a fingerprint
     *  (openssl x509 -noout -fingerprint -in "idp.crt" to generate it)
     */
    // 'certFingerprint' => '',
),

谁能帮帮我。

Answer 1

'sp' => array(

'x509cert' => 'I ADDED x509certs here which I downloaded from google',
'privateKey' => '',

您将 Google 用作 IdP，那么为什么要在 sp 部分使用 google public cert？

如果您打算对 SP 发送的 SAML 消息进行签名，那么您需要将自己的证书/私钥放在那里。您可以使用此工具生成自签名证书:https://www.samltool.com/self_signed_certs.php

如果您对某些设置字段有疑问，请查看 Lavarel SAML 插件的文档，同时查看 documentation of php-saml ，插件使用的 SAML 工具包。

为了调试正在发生的事情，我还建议您使用浏览器扩展来记录您的 SAML 消息，例如使用 SAML Tracer 并查看将通知您可能的错误的响应状态。