Spring Integration provides the interceptor ChannelSecurityInterceptor, which extends AbstractSecurityInterceptor and intercepts send and receive calls on the channel. Access decisions are then made with reference to ChannelInvocationDefinitionSource which provides the definition of the send and receive security constraints. The interceptor requires that a valid SecurityContext has been established by authenticating with Spring Security, see the Spring Security reference documentation for details.

Namespace support is provided to allow easy configuration of security constraints. This consists of the secured channels tag which allows definition of one or more channel name patterns in conjunction with a definition of the security configuration for send and receive. The pattern is a java.util.regexp.Pattern.

<?xml version="1.0" encoding="UTF-8"?>
<beans:beans xmlns="http://www.springframework.org/schema/integration"
 	xmlns:si-security="http://www.springframework.org/schema/integration/security"
	xmlns:beans="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xmlns:security="http://www.springframework.org/schema/security"
	xsi:schemaLocation="http://www.springframework.org/schema/beans
			http://www.springframework.org/schema/beans/spring-beans-2.0.xsd
			http://www.springframework.org/schema/security
			http://www.springframework.org/schema/security/spring-security-2.0.xsd
			http://www.springframework.org/schema/integration
			http://www.springframework.org/schema/integration/spring-integration-1.0.xsd
			http://www.springframework.org/schema/integration/security
			http://www.springframework.org/schema/integration/security/spring-integration-security-1.0.xsd">

<si-security:secured-channels>
    <si-security:access-policy pattern="admin.*" send-access="ROLE_ADMIN"/>
    <si-security:access-policy pattern="user.*" receive-access="ROLE_USER"/>
</si-security:secured-channels>
	

By default the secured-channels namespace element expects a bean named authenticationManager which implements AuthenticationManager and a bean named accessDecisionManager which implements AccessDecisionManager. Where this is not the case references to the appropriate beans can be configured as attributes of the secured-channels element as below.

<si-security:secured-channels access-decision-manager="customAccessDecisionManager"
                              authentication-manager="customAuthenticationManager">
    <si-security:access-policy pattern="admin.*" send-access="ROLE_ADMIN"/>
    <si-security:access-policy pattern="user.*" receive-access="ROLE_USER"/>
</si-security:secured-channels>