Redirect to IdP Automatically with Spring SAML

Started working with SAML recently and faced all the problems, most of which I developed. However, the one I still don't have is how to turn off discovery, so Spring will automatically redirect the IdP (I only have one, and also its default) when accessing any protected resource. I see in the Springs docs that you can easily turn off detection, however the docs seem to be missing examples and / or details, so I'm not entirely sure how to do this.

So far, I've tried setting idpSelectionPath to empty and also using includeDiscoveryExtension and idpDiscoveryEnabled to set it to false. Using a direct url (context / saml / login? Idp = IDP) does work, but is not an option as my requirement for any secure url to automatically redirect to an IdP if the user is not signed in.

Below is a working version of my securityContext.xml file, as some of the changes I made (like removing all detection options) caused an infinite loop browser error. Any help is appreciated. Thank!

<?xml version="1.0" encoding="UTF-8" ?>
<beans xmlns="http://www.springframework.org/schema/beans"
   xmlns:security="http://www.springframework.org/schema/security"
   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
   xmlns:context="http://www.springframework.org/schema/context"
   xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
          http://www.springframework.org/schema/security http://www.springframework.org/schema/security/spring-security-3.1.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd">

<!-- Enable auto-wiring -->
<context:annotation-config/>
<context:component-scan base-package="org.springframework.security.saml"/>

<!-- Unsecured pages -->
<security:http security="none" pattern="/saml/web/**"/>
<security:http security="none" pattern="/logout.jsp"/>
<security:http security="none" pattern="/favicon.ico"/>

<!-- Secured pages -->
<security:http entry-point-ref="samlEntryPoint">
    <security:intercept-url pattern="/**" access="IS_AUTHENTICATED_FULLY"/>
    <security:custom-filter before="FIRST" ref="metadataGeneratorFilter"/>
    <security:custom-filter after="BASIC_AUTH_FILTER" ref="samlFilter"/>
</security:http>

<bean id="samlFilter" class="org.springframework.security.web.FilterChainProxy">
    <security:filter-chain-map request-matcher="ant">
        <security:filter-chain pattern="/saml/login/**" filters="samlEntryPoint"/>
        <security:filter-chain pattern="/saml/logout/**" filters="samlLogoutFilter"/>
        <security:filter-chain pattern="/saml/metadata/**" filters="metadataDisplayFilter"/>
        <security:filter-chain pattern="/saml/SSO/**" filters="samlWebSSOProcessingFilter"/>
        <security:filter-chain pattern="/saml/SSOHoK/**" filters="samlWebSSOHoKProcessingFilter"/>
        <security:filter-chain pattern="/saml/SingleLogout/**" filters="samlLogoutProcessingFilter"/>
        <security:filter-chain pattern="/saml/discovery/**" filters="samlIDPDiscovery"/>
    </security:filter-chain-map>
</bean>

<!-- Handler deciding where to redirect user after successful login -->
<bean id="successRedirectHandler"
      class="org.springframework.security.web.authentication.SavedRequestAwareAuthenticationSuccessHandler">
    <property name="defaultTargetUrl" value="/"/>
</bean>
<!--
Use the following for interpreting RelayState coming from unsolicited response as redirect URL:
<bean id="successRedirectHandler" class="org.springframework.security.saml.SAMLRelayStateSuccessHandler">
   <property name="defaultTargetUrl" value="/" />
</bean>
-->

<!-- Handler for successful logout -->
<bean id="successLogoutHandler" class="org.springframework.security.web.authentication.logout.SimpleUrlLogoutSuccessHandler">
    <property name="defaultTargetUrl" value="/logout.jsp"/>
</bean>

<!-- Register authentication manager with SAML provider -->
<security:authentication-manager alias="authenticationManager">
    <security:authentication-provider ref="samlAuthenticationProvider"/>
</security:authentication-manager>

<!-- Logger for SAML messages and events -->
<bean id="samlLogger" class="org.springframework.security.saml.log.SAMLDefaultLogger"/>

<!-- Central storage of cryptographic keys -->
<bean id="keyManager" class="org.springframework.security.saml.key.JKSKeyManager">
    <constructor-arg value="classpath:security/samlKeystore.jks"/>
    <constructor-arg type="java.lang.String" value="nalle123"/>
    <constructor-arg>
        <map>
            <entry key="apollo" value="nalle123"/>
        </map>
    </constructor-arg>
    <constructor-arg type="java.lang.String" value="apollo"/>
</bean>

<!-- Entry point to initialize authentication, default values taken from properties file -->
<bean id="samlEntryPoint" class="org.springframework.security.saml.SAMLEntryPoint">
    <property name="defaultProfileOptions">
        <bean class="org.springframework.security.saml.websso.WebSSOProfileOptions">
            <property name="includeScoping" value="false"/>
        </bean>
    </property>
</bean>

<!-- IDP Discovery Service -->
<bean id="samlIDPDiscovery" class="org.springframework.security.saml.SAMLDiscovery">
    <property name="idpSelectionPath" value="/WEB-INF/security/idpSelection.jsp"/>
</bean>

<!-- Filter automatically generates default SP metadata -->

      

        
        
        
      

    

<!-- The filter is waiting for connections on URL suffixed with filterSuffix and presents SP metadata there -->
<bean id="metadataDisplayFilter" class="org.springframework.security.saml.metadata.MetadataDisplayFilter"/>

<!-- IDP Metadata configuration - paths to metadata of IDPs in circle of trust is here -->
<!-- Do no forget to call iniitalize method on providers -->
<bean id="metadata" class="org.springframework.security.saml.metadata.CachingMetadataManager">
<constructor-arg>
    <list>
        <bean class="org.springframework.security.saml.metadata.ExtendedMetadataDelegate">
<constructor-arg>
    <bean class="org.opensaml.saml2.metadata.provider.FilesystemMetadataProvider">
        <constructor-arg>
            <value type="java.io.File">C:/SAMLIdP-00D1a000000KR5C.xml</value>
        </constructor-arg>
        <property name="parserPool" ref="parserPool"/>
    </bean>
</constructor-arg>
<constructor-arg>
    <bean class="org.springframework.security.saml.metadata.ExtendedMetadata"/>
</constructor-arg>
</bean>
    </list>
</constructor-arg>
<property name="defaultIDP" value="https://mrc-dev-ed.my.salesforce.com"/>
</bean>

<!-- SAML Authentication Provider responsible for validating of received SAML messages -->
<bean id="samlAuthenticationProvider" class="org.springframework.security.saml.SAMLAuthenticationProvider">
    <!-- OPTIONAL property: can be used to store/load user data after login -->
    <!--
    <property name="userDetails" ref="bean" />
    -->
</bean>

<!-- Provider of default SAML Context -->
<bean id="contextProvider" class="org.springframework.security.saml.context.SAMLContextProviderImpl"/>

<!-- Processing filter for WebSSO profile messages -->
<bean id="samlWebSSOProcessingFilter" class="org.springframework.security.saml.SAMLProcessingFilter">
    <property name="authenticationManager" ref="authenticationManager"/>
    <property name="authenticationSuccessHandler" ref="successRedirectHandler"/>
</bean>

<!-- Processing filter for WebSSO Holder-of-Key profile -->
<bean id="samlWebSSOHoKProcessingFilter" class="org.springframework.security.saml.SAMLWebSSOHoKProcessingFilter">
    <property name="authenticationManager" ref="authenticationManager"/>
    <property name="authenticationSuccessHandler" ref="successRedirectHandler"/>
</bean>

<!-- Logout handler terminating local session -->
<bean id="logoutHandler"
      class="org.springframework.security.web.authentication.logout.SecurityContextLogoutHandler">
    <property name="invalidateHttpSession" value="false"/>
</bean>

<!-- Override default logout processing filter with the one processing SAML messages -->
<bean id="samlLogoutFilter" class="org.springframework.security.saml.SAMLLogoutFilter">
    <constructor-arg ref="successLogoutHandler"/>
    <constructor-arg ref="logoutHandler"/>
    <constructor-arg ref="logoutHandler"/>
</bean>

<!-- Filter processing incoming logout messages -->
<!-- First argument determines URL user will be redirected to after successful global logout -->
<bean id="samlLogoutProcessingFilter" class="org.springframework.security.saml.SAMLLogoutProcessingFilter">
    <constructor-arg ref="successLogoutHandler"/>
    <constructor-arg ref="logoutHandler"/>
</bean>

<!-- Class loading incoming SAML messages from httpRequest stream -->
<bean id="processor" class="org.springframework.security.saml.processor.SAMLProcessorImpl">
    <constructor-arg>
        <list>
            <ref bean="redirectBinding"/>
            <ref bean="postBinding"/>
            <ref bean="artifactBinding"/>
            <ref bean="soapBinding"/>
            <ref bean="paosBinding"/>
        </list>
    </constructor-arg>
</bean>

<!-- SAML 2.0 WebSSO Assertion Consumer -->
<bean id="webSSOprofileConsumer" class="org.springframework.security.saml.websso.WebSSOProfileConsumerImpl"/>

<!-- SAML 2.0 Holder-of-Key WebSSO Assertion Consumer -->
<bean id="hokWebSSOprofileConsumer" class="org.springframework.security.saml.websso.WebSSOProfileConsumerHoKImpl"/>

<!-- SAML 2.0 Web SSO profile -->
<bean id="webSSOprofile" class="org.springframework.security.saml.websso.WebSSOProfileImpl"/>

<!-- SAML 2.0 Holder-of-Key Web SSO profile -->
<bean id="hokWebSSOProfile" class="org.springframework.security.saml.websso.WebSSOProfileConsumerHoKImpl"/>

<!-- SAML 2.0 ECP profile -->
<bean id="ecpprofile" class="org.springframework.security.saml.websso.WebSSOProfileECPImpl"/>

<!-- SAML 2.0 Logout Profile -->
<bean id="logoutprofile" class="org.springframework.security.saml.websso.SingleLogoutProfileImpl"/>

<!-- Bindings, encoders and decoders used for creating and parsing messages -->
<bean id="postBinding" class="org.springframework.security.saml.processor.HTTPPostBinding">
    <constructor-arg ref="parserPool"/>
    <constructor-arg ref="velocityEngine"/>
</bean>

<bean id="redirectBinding" class="org.springframework.security.saml.processor.HTTPRedirectDeflateBinding">
    <constructor-arg ref="parserPool"/>
</bean>

<bean id="artifactBinding" class="org.springframework.security.saml.processor.HTTPArtifactBinding">
    <constructor-arg ref="parserPool"/>
    <constructor-arg ref="velocityEngine"/>
    <constructor-arg>
        <bean class="org.springframework.security.saml.websso.ArtifactResolutionProfileImpl">
            <constructor-arg>
                <bean class="org.apache.commons.httpclient.HttpClient"/>
            </constructor-arg>
            <property name="processor">
                <bean id="soapProcessor" class="org.springframework.security.saml.processor.SAMLProcessorImpl">
                    <constructor-arg ref="soapBinding"/>
                </bean>
            </property>
        </bean>
    </constructor-arg>
</bean>

<bean id="soapBinding" class="org.springframework.security.saml.processor.HTTPSOAP11Binding">
    <constructor-arg ref="parserPool"/>
</bean>

<bean id="paosBinding" class="org.springframework.security.saml.processor.HTTPPAOS11Binding">
    <constructor-arg ref="parserPool"/>
</bean>

<!-- Initialization of OpenSAML library-->
<bean class="org.springframework.security.saml.SAMLBootstrap"/>

<!-- Initialization of the velocity engine -->
<bean id="velocityEngine" class="org.springframework.security.saml.util.VelocityFactory" factory-method="getEngine"/>

<!-- XML parser pool needed for OpenSAML parsing -->
<bean id="parserPool" class="org.opensaml.xml.parse.StaticBasicParserPool" scope="singleton" init-method="initialize"/>
<bean id="parserPoolHolder" class="org.springframework.security.saml.parser.ParserPoolHolder" scope="singleton"/>
</beans>