org.codehaus.groovy.grails.plugins.springsecurity.HeaderCheckSecureChannelProcessor.java Source code

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Here is the source code for org.codehaus.groovy.grails.plugins.springsecurity.HeaderCheckSecureChannelProcessor.java

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/* Copyright 2012 SpringSource.
 *
 * Licensed 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.
 */
package org.codehaus.groovy.grails.plugins.springsecurity;

import java.io.IOException;
import java.util.Collection;

import javax.servlet.ServletException;

import org.springframework.security.access.ConfigAttribute;
import org.springframework.security.web.FilterInvocation;
import org.springframework.security.web.access.channel.SecureChannelProcessor;
import org.springframework.util.Assert;

/**
 * @author <a href='mailto:burt@burtbeckwith.com'>Burt Beckwith</a>
 */
public class HeaderCheckSecureChannelProcessor extends SecureChannelProcessor {

    private String headerName;
    private String headerValue;

    @Override
    public void decide(FilterInvocation invocation, Collection<ConfigAttribute> config)
            throws IOException, ServletException {

        Assert.isTrue(invocation != null && config != null, "Nulls cannot be provided");

        for (ConfigAttribute attribute : config) {
            if (supports(attribute)) {
                if (headerValue.equals(invocation.getHttpRequest().getHeader(headerName))) {
                    getEntryPoint().commence(invocation.getRequest(), invocation.getResponse());
                }
            }
        }
    }

    /**
     * Set the name of the header to check.
     * @param name the name
     */
    public void setHeaderName(String name) {
        headerName = name;
    }

    /**
     * Set the header value to trigger a redirect.
     * @param value the value
     */
    public void setHeaderValue(String value) {
        headerValue = value;
    }

    @Override
    public void afterPropertiesSet() throws Exception {
        super.afterPropertiesSet();
        Assert.hasLength(headerName, "Header name is required");
        Assert.hasLength(headerValue, "Header value is required");
    }
}