通过集成 Spring SAML（作为 SP）和 SimpleSAML（作为 IdP）来转发错误

Question

为了在我的 web 应用中支持 SSO 和 SLO，我使用 @987654321 实现了一个 Service Provider @。

代码在 GitHub 上提供：vdenotaris/spring-boot-saml。

使用 SSOCircle 作为 Identity Provider 一切正常。

现在，我正在尝试基于 Simple SAML 链接另一个 IdP，在这种情况下 SSO 失败。

分析我的应用服务器（Apache Tomcat 7.0.54）上的日志，我发现了这些错误：

root@pr01tom01:/opt/apache-tomcat-7.0.54/logs# tail -n 10000 localhost.2014-07-14.log | grep SEVERE
    SEVERE: Servlet.service() for servlet dispatcherServlet threw exception
    SEVERE: Servlet.service() for servlet dispatcherServlet threw exception
    SEVERE: Servlet.service() for servlet dispatcherServlet threw exception
    SEVERE: Servlet.service() for servlet dispatcherServlet threw exception
    SEVERE: Servlet.service() for servlet dispatcherServlet threw exception
    SEVERE: Servlet.service() for servlet dispatcherServlet threw exception
    SEVERE: Servlet.service() for servlet dispatcherServlet threw exception
    SEVERE: Servlet.service() for servlet dispatcherServlet threw exception
    SEVERE: Servlet.service() for servlet dispatcherServlet threw exception
root@pr01tom01:/opt/apache-tomcat-7.0.54/logs# tail -n 10000 localhost.2014-07-14.log | grep java.lang.IllegalStateException
    java.lang.IllegalStateException: Cannot forward after response has been committed
    java.lang.IllegalStateException: Cannot forward after response has been committed
    java.lang.IllegalStateException: Cannot forward after response has been committed
    java.lang.IllegalStateException: Cannot forward after response has been committed
    java.lang.IllegalStateException: Cannot forward after response has been committed
    java.lang.IllegalStateException: Cannot forward after response has been committed
    java.lang.IllegalStateException: Cannot forward after response has been committed

有没有办法解决这个问题？

问候，V.

---

春季调试日志：

[2014-07-15 18:20:57.314] boot - 1092 DEBUG [http-bio-443-exec-6] --- SAMLContextProviderImpl: Using user specified IDP https://prisma-idp.cloud.ba.infn.it/simplesaml/saml2/idp/metadata.php from request
[2014-07-15 18:20:57.314] boot - 1092 DEBUG [http-bio-443-exec-6] --- ChainingMetadataProvider: Checking child metadata provider for entity descriptor with entity ID: https://prisma-idp.cloud.ba.infn.it/simplesaml/saml2/idp/metadata.php
[2014-07-15 18:20:57.314] boot - 1092 DEBUG [http-bio-443-exec-6] --- AbstractMetadataProvider: Searching for entity descriptor with an entity ID of https://prisma-idp.cloud.ba.infn.it/simplesaml/saml2/idp/metadata.php
[2014-07-15 18:20:57.315] boot - 1092 DEBUG [http-bio-443-exec-6] --- AbstractMetadataProvider: Metadata document did not contain a descriptor for entity https://prisma-idp.cloud.ba.infn.it/simplesaml/saml2/idp/metadata.php
[2014-07-15 18:20:57.315] boot - 1092 DEBUG [http-bio-443-exec-6] --- AbstractMetadataProvider: Metadata document did not contain any role descriptors of type {urn:oasis:names:tc:SAML:2.0:metadata}IDPSSODescriptor for entity https://prisma-idp.cloud.ba.infn.it/simplesaml/saml2/idp/metadata.php
[2014-07-15 18:20:57.315] boot - 1092 DEBUG [http-bio-443-exec-6] --- AbstractMetadataProvider: Metadata document does not contain a role of type {urn:oasis:names:tc:SAML:2.0:metadata}IDPSSODescriptor supporting protocol urn:oasis:names:tc:SAML:2.0:protocol for entity https://prisma-idp.cloud.ba.infn.it/simplesaml/saml2/idp/metadata.php
[2014-07-15 18:20:57.315] boot - 1092 DEBUG [http-bio-443-exec-6] --- ChainingMetadataProvider: Checking child metadata provider for entity descriptor with entity ID: https://prisma-idp.cloud.ba.infn.it/simplesaml/saml2/idp/metadata.php
[2014-07-15 18:20:57.316] boot - 1092 DEBUG [http-bio-443-exec-6] --- AbstractMetadataProvider: Searching for entity descriptor with an entity ID of https://prisma-idp.cloud.ba.infn.it/simplesaml/saml2/idp/metadata.php
[2014-07-15 18:20:57.316] boot - 1092 DEBUG [http-bio-443-exec-6] --- AbstractMetadataProvider: Metadata document did not contain a descriptor for entity https://prisma-idp.cloud.ba.infn.it/simplesaml/saml2/idp/metadata.php
[2014-07-15 18:20:57.316] boot - 1092 DEBUG [http-bio-443-exec-6] --- AbstractMetadataProvider: Metadata document did not contain any role descriptors of type {urn:oasis:names:tc:SAML:2.0:metadata}IDPSSODescriptor for entity https://prisma-idp.cloud.ba.infn.it/simplesaml/saml2/idp/metadata.php
[2014-07-15 18:20:57.316] boot - 1092 DEBUG [http-bio-443-exec-6] --- AbstractMetadataProvider: Metadata document does not contain a role of type {urn:oasis:names:tc:SAML:2.0:metadata}IDPSSODescriptor supporting protocol urn:oasis:names:tc:SAML:2.0:protocol for entity https://prisma-idp.cloud.ba.infn.it/simplesaml/saml2/idp/metadata.php
[2014-07-15 18:20:57.317] boot - 1092 DEBUG [http-bio-443-exec-6] --- ChainingMetadataProvider: Checking child metadata provider for entity descriptor with entity ID: https://prisma-idp.cloud.ba.infn.it/simplesaml/saml2/idp/metadata.php
[2014-07-15 18:20:57.317] boot - 1092 DEBUG [http-bio-443-exec-6] --- AbstractMetadataProvider: Searching for entity descriptor with an entity ID of https://prisma-idp.cloud.ba.infn.it/simplesaml/saml2/idp/metadata.php
[2014-07-15 18:20:57.317] boot - 1092 DEBUG [http-bio-443-exec-6] --- SAMLUtil: Index for AssertionConsumerService not specified, returning default
[2014-07-15 18:20:57.317] boot - 1092 DEBUG [http-bio-443-exec-6] --- SAML2MetadataHelper: Selecting default IndexedEndpoint
[2014-07-15 18:20:57.318] boot - 1092 DEBUG [http-bio-443-exec-6] --- SAML2MetadataHelper: Selected IndexedEndpoint with explicit isDefault of true
[2014-07-15 18:20:57.318] boot - 1092 DEBUG [http-bio-443-exec-6] --- SAMLEntryPoint: Processing SSO using WebSSO profile
[2014-07-15 18:20:57.318] boot - 1092 DEBUG [http-bio-443-exec-6] --- SAML2MetadataHelper: Selecting default IndexedEndpoint
[2014-07-15 18:20:57.318] boot - 1092 DEBUG [http-bio-443-exec-6] --- SAML2MetadataHelper: Selected IndexedEndpoint with explicit isDefault of true
[2014-07-15 18:20:57.318] boot - 1092 DEBUG [http-bio-443-exec-6] --- SAML2MetadataHelper: Selecting default IndexedEndpoint
[2014-07-15 18:20:57.318] boot - 1092 DEBUG [http-bio-443-exec-6] --- SAML2MetadataHelper: Selected IndexedEndpoint with explicit isDefault of true
[2014-07-15 18:20:57.319] boot - 1092 DEBUG [http-bio-443-exec-6] --- SAML2MetadataHelper: Selecting default IndexedEndpoint
[2014-07-15 18:20:57.319] boot - 1092 DEBUG [http-bio-443-exec-6] --- SAML2MetadataHelper: Selected IndexedEndpoint with explicit isDefault of true
[2014-07-15 18:20:57.319] boot - 1092 DEBUG [http-bio-443-exec-6] --- WebSSOProfileImpl: Using default consumer service with binding urn:oasis:names:tc:SAML:2.0:bindings:HTTP-Artifact
[2014-07-15 18:20:57.319] boot - 1092 DEBUG [http-bio-443-exec-6] --- BaseMessageEncoder: Beginning encode message to outbound transport of type: org.opensaml.ws.transport.http.HttpServletResponseAdapter
[2014-07-15 18:20:57.320] boot - 1092 DEBUG [http-bio-443-exec-6] --- HTTPRedirectDeflateEncoder: Deflating and Base64 encoding SAML message
[2014-07-15 18:20:57.320] boot - 1092 DEBUG [http-bio-443-exec-6] --- BaseMessageEncoder: Marshalling message
[2014-07-15 18:20:57.323] boot - 1092 DEBUG [http-bio-443-exec-6] --- HTTPRedirectDeflateEncoder: Building URL to redirect client to
[2014-07-15 18:20:57.323] boot - 1092 DEBUG [http-bio-443-exec-6] --- HTTPRedirectDeflateEncoder: Generating signature with key type 'RSA', algorithm URI 'http://www.w3.org/2000/09/xmldsig#rsa-sha1' over query string 'SAMLRequest=fVLBbuMgFPwVxN1gbKdpUZzK3W61lhptFCettJcVsXFNhMHLg6j79%2Bs4iba99PjEvJl5Myzu33uNjtKBsibHjMQYSVPbRpm3HO%2B2T9Etvl8uQPQ6GXgRfGc28k%2BQ4NG4aICfX3IcnOFWgAJuRC%2BB%2B5pXxeqZJyTmg7Pe1lZjVABI50epb9ZA6KWrpDuqWu42zznuvB%2BAUzo4Bb2AgdTahoY4Oei%2FRAaeZSldlbvN7%2FWmrFZFlBAWvX5%2F2JX0ZIJW1U8qtBJAG9mKoH1xGjB6HM0qI%2Fx04GeNSDVXlb0gyrSGKE9B9YOWE%2Bd0HR1RJ%2FaLVzJ0A0ZP1tVyyiPHrdAgMSofcyyyVBz27K1Juzi7m6Us7W4Oop7v2aFlsh1BsBYA6ij%2FrwEEWRrwwvgcJzHLongesdmW3fAk5rM5SdndL4zWlxQflDm381Xk%2BzMI%2BI%2Ftdh0VY%2BatqD1GL9emRxC%2B9MonB%2B5joV%2BTi2uLeHmCKc97FRw%2FZ7qgH0mXl%2FHz31n%2BAw%3D%3D&SigAlg=http%3A%2F%2Fwww.w3.org%2F2000%2F09%2Fxmldsig%23rsa-sha1'
[2014-07-15 18:20:57.324] boot - 1092 DEBUG [http-bio-443-exec-6] --- SigningUtil: Computing signature over input using private key of type RSA and JCA algorithm ID SHA1withRSA
[2014-07-15 18:20:57.350] boot - 1092 DEBUG [http-bio-443-exec-6] --- SigningUtil: Computed signature: 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
[2014-07-15 18:20:57.350] boot - 1092 DEBUG [http-bio-443-exec-6] --- HTTPRedirectDeflateEncoder: Generated digital signature value (base64-encoded) gh+POR5Kq2TOjHk3TVhAwFKyoWlDLYNZdwV9CjO9ctxAqLlZSkircMTVivNu/zq564phwvN2a1kHF4G5hLoyVaz1P1bgKEQu8vNyop7bvozXkd8yWIuQQ8vHqp56sV/75HM39469XRqSn9KzB37TLDZDg3RkVf0kx7LOfMHdCe2hsgmd0J/DiAHN7rcmJDegR4La1FrBX9HwU//5Jb139em35aPxRk1PCKB8DUU9R5gDqvdSVuoHTv8AqKVXUjPPmXZJq+BofZpzLqA8MmWZkLjwB4Souzi+kkAIXblq/6Aww5/nFzqF8QDShUfaUUH6prBi8x6mneq+Yb6nj4CVYQ==
[2014-07-15 18:20:57.353] boot - 1092 DEBUG [http-bio-443-exec-6] --- PROTOCOL_MESSAGE:
<?xml version="1.0" encoding="UTF-8"?><saml2p:AuthnRequest xmlns:saml2p="urn:oasis:names:tc:SAML:2.0:protocol" AssertionConsumerServiceURL="https://prismasp.cloud.reply.eu:443/MIUR_PRISMA-2.1-WEBUI/saml/SSO/alias/defaultAlias" Destination="https://prisma-idp.cloud.ba.infn.it/simplesaml/saml2/idp/SSOService.php" ForceAuthn="false" ID="a43ajb1gd3h0495313h6jac7b1jf1ef" IsPassive="false" IssueInstant="2014-07-15T16:20:57.319Z" ProtocolBinding="urn:oasis:names:tc:SAML:2.0:bindings:HTTP-Artifact" Version="2.0">
   <saml2:Issuer xmlns:saml2="urn:oasis:names:tc:SAML:2.0:assertion">urn:it:miur:prisma</saml2:Issuer>
</saml2p:AuthnRequest>

[2014-07-15 18:20:57.354] boot - 1092 DEBUG [http-bio-443-exec-6] --- BaseMessageEncoder: Successfully encoded message.
[2014-07-15 18:20:57.354] boot - 1092  INFO [http-bio-443-exec-6] --- SAMLDefaultLogger: AuthNRequest;SUCCESS;10.7.4.185

---

Tomcat server.xml

<?xml version='1.0' encoding='utf-8'?>
<!--
  Licensed to the Apache Software Foundation (ASF) under one or more
  contributor license agreements.  See the NOTICE file distributed with
  this work for additional information regarding copyright ownership.
  The ASF licenses this file to You under the Apache License, Version 2.0
  (the "License"); you may not use this file except in compliance with
  the License.  You may obtain a copy of the License at

      http://www.apache.org/licenses/LICENSE-2.0

  Unless required by applicable law or agreed to in writing, software
  distributed under the License is distributed on an "AS IS" BASIS,
  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  See the License for the specific language governing permissions and
  limitations under the License.
-->
<!-- Note:  A "Server" is not itself a "Container", so you may not
     define subcomponents such as "Valves" at this level.
     Documentation at /docs/config/server.html
 -->
<Server port="8005" shutdown="SHUTDOWN">
  <!-- Security listener. Documentation at /docs/config/listeners.html
  <Listener className="org.apache.catalina.security.SecurityListener" />
  -->
  <!--APR library loader. Documentation at /docs/apr.html -->
  <!--Listener className="org.apache.catalina.core.AprLifecycleListener" SSLEngine="on" /-->
  <!--Initialize Jasper prior to webapps are loaded. Documentation at /docs/jasper-howto.html -->
  <Listener className="org.apache.catalina.core.JasperListener" />
  <!-- Prevent memory leaks due to use of particular java/javax APIs-->
  <Listener className="org.apache.catalina.core.JreMemoryLeakPreventionListener" />
  <Listener className="org.apache.catalina.mbeans.GlobalResourcesLifecycleListener" />
  <Listener className="org.apache.catalina.core.ThreadLocalLeakPreventionListener" />

  <!-- Global JNDI resources
       Documentation at /docs/jndi-resources-howto.html
  -->
  <GlobalNamingResources>
    <!-- Editable user database that can also be used by
         UserDatabaseRealm to authenticate users
    -->
    <Resource name="UserDatabase" auth="Container"
              type="org.apache.catalina.UserDatabase"
              description="User database that can be updated and saved"
              factory="org.apache.catalina.users.MemoryUserDatabaseFactory"
              pathname="conf/tomcat-users.xml" />
  </GlobalNamingResources>

  <!-- A "Service" is a collection of one or more "Connectors" that share
       a single "Container" Note:  A "Service" is not itself a "Container",
       so you may not define subcomponents such as "Valves" at this level.
       Documentation at /docs/config/service.html
   -->
  <Service name="Catalina">

    <!--The connectors can use a shared executor, you can define one or more named thread pools-->
    <!--
    <Executor name="tomcatThreadPool" namePrefix="catalina-exec-"
        maxThreads="150" minSpareThreads="4"/>
    -->

    <!-- A "Connector" represents an endpoint by which requests are received
         and responses are returned. Documentation at :
         Java HTTP Connector: /docs/config/http.html (blocking & non-blocking)
         Java AJP  Connector: /docs/config/ajp.html
         APR (HTTP/AJP) Connector: /docs/apr.html
         Define a non-SSL HTTP/1.1 Connector on port 8080
    -->
    <Connector port="80" protocol="HTTP/1.1"
               connectionTimeout="20000"
               redirectPort="8443" />
    <!-- A "Connector" using the shared thread pool-->
    <!--
    <Connector executor="tomcatThreadPool"
               port="8080" protocol="HTTP/1.1"
               connectionTimeout="20000"
               redirectPort="8443" />
    -->
    <!-- Define a SSL HTTP/1.1 Connector on port 8443
         This connector uses the BIO implementation that requires the JSSE
         style configuration. When using the APR/native implementation, the
         OpenSSL style configuration is required as described in the APR/native
         documentation -->

        <Connector port="443" protocol="org.apache.coyote.http11.Http11Protocol"
            maxThreads="150" SSLEnabled="true" scheme="https" secure="true"
            clientAuth="false" sslProtocol="TLS"
            keystoreFile="/root/.keystore"
            keystorePass="mystore"
            keyAlias="appalias"
            keyPass="mycert"              />


    <!-- Define an AJP 1.3 Connector on port 8009 -->
    <Connector port="8009" protocol="AJP/1.3" redirectPort="8443" />


    <!-- An Engine represents the entry point (within Catalina) that processes
         every request.  The Engine implementation for Tomcat stand alone
         analyzes the HTTP headers included with the request, and passes them
         on to the appropriate Host (virtual host).
         Documentation at /docs/config/engine.html -->

    <!-- You should set jvmRoute to support load-balancing via AJP ie :
    <Engine name="Catalina" defaultHost="localhost" jvmRoute="jvm1">
    -->
    <Engine name="Catalina" defaultHost="localhost">

      <!--For clustering, please take a look at documentation at:
          /docs/cluster-howto.html  (simple how to)
          /docs/config/cluster.html (reference documentation) -->
      <!--
      <Cluster className="org.apache.catalina.ha.tcp.SimpleTcpCluster"/>
      -->

      <!-- Use the LockOutRealm to prevent attempts to guess user passwords
           via a brute-force attack -->
      <Realm className="org.apache.catalina.realm.LockOutRealm">
        <!-- This Realm uses the UserDatabase configured in the global JNDI
             resources under the key "UserDatabase".  Any edits
             that are performed against this UserDatabase are immediately
             available for use by the Realm.  -->
        <Realm className="org.apache.catalina.realm.UserDatabaseRealm"
               resourceName="UserDatabase"/>
      </Realm>

      <Host name="localhost"  appBase="webapps"
            unpackWARs="true" autoDeploy="true">

        <!-- SingleSignOn valve, share authentication between web applications
             Documentation at: /docs/config/valve.html -->
        <!--
        <Valve className="org.apache.catalina.authenticator.SingleSignOn" />
        -->

        <!-- Access log processes all example.
             Documentation at: /docs/config/valve.html
             Note: The pattern used is equivalent to using pattern="common" -->
        <Valve className="org.apache.catalina.valves.AccessLogValve" directory="logs"
               prefix="localhost_access_log." suffix=".txt"
               pattern="%h %l %u %t &quot;%r&quot; %s %b" />

      </Host>
    </Engine>
  </Service>
</Server>

Answer 1

在我的环境中运行您的代码时，我必须首先禁用WebSecurityConfig#configure(HttpSecurity) 中的 CSRF 令牌检查，因为它会阻止接受来自 Prisma IDP 的 SAML 响应。我这样做了：

http.csrf().disable();

在单点登录开始工作后，响应消息被接受，但您的 demo.components.SAMLUserDetailsServiceImpl 拒绝了它，因为用户的 ID 与您在此处指定的条件 if (userID.compareTo("jdoe@samplemail.com") != 0) 不匹配。 （从 Prisma 服务返回的用户 ID 是类似于“246c7aaffc73d7b3cea43d35f14bf86a59557b37”的标识符）。

您抛出的SSOUserAccountNotExistsException 异常会将用户发送回入口点（这可能会导致永久循环）。

删除if 条件后，我就能够成功完成单点登录过程。

我相信您在上面发布的日志仍然不完整。我必须通过创建具有以下内容的文件 src/main/resources/logback.xml 来启用日志记录：

<?xml version="1.0" encoding="UTF-8"?>
<configuration>
    <include resource="org/springframework/boot/logging/logback/base.xml"/>
    <logger name="org.springframework.security" level="DEBUG"/>
    <logger name="org.springframework.security.saml" level="DEBUG"/>
    <logger name="org.opensaml" level="DEBUG"/>
    <logger name="PROTOCOL_MESSAGE" level="DEBUG"/>
</configuration>