x509certificatecredentialsnoninteractiveaction.java

来自「CAS在Tomcat中实现单点登录项目,单点登录（Single Sign On 」· Java 代码 · 共 48 行

/*
 * Copyright 2007 The JA-SIG Collaborative. All rights reserved. See license
 * distributed with this file and available online at
 * http://www.ja-sig.org/products/cas/overview/license/
 */
package org.jasig.cas.adaptors.x509.web.flow;

import java.security.cert.X509Certificate;

import org.jasig.cas.adaptors.x509.authentication.principal.X509CertificateCredentials;
import org.jasig.cas.authentication.principal.Credentials;
import org.jasig.cas.web.flow.AbstractNonInteractiveCredentialsAction;
import org.springframework.webflow.execution.RequestContext;

/**
 * Concrete implementation of AbstractNonInteractiveCredentialsAction that
 * obtains the X509 Certificates from the HttpServletRequest and places them in
 * the X509CertificateCredentials.
 * 
 * @author Scott Battaglia
 * @version $Revision: 42053 $ $Date: 2007-06-10 09:17:55 -0400 (Sun, 10 Jun 2007) $
 * @since 3.0.4
 */
public final class X509CertificateCredentialsNonInteractiveAction extends
    AbstractNonInteractiveCredentialsAction {

    private static final String CERTIFICATE_REQUEST_ATTRIBUTE = "javax.servlet.request.X509Certificate";

    protected Credentials constructCredentialsFromRequest(
        final RequestContext context) {
        final X509Certificate[] certificates = (X509Certificate[]) context
            .getExternalContext().getRequestMap().get(
                CERTIFICATE_REQUEST_ATTRIBUTE);

        if (certificates == null || certificates.length == 0) {
            if (logger.isDebugEnabled()) {
                logger.debug("Certificates not found in request.");
            }
            return null;
        }

        if (logger.isDebugEnabled()) {
            logger.debug("Certificate found in request.");
        }
        return new X509CertificateCredentials(certificates);
    }
}