securityinterceptor.java

一个简单的java邮件系统源码

package com.easyjf.web.interceptor.security;

import java.util.Iterator;
import java.util.List;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import com.easyjf.web.WebForm;
import com.easyjf.web.interceptor.AbstractPreActionInterceptor;
import com.easyjf.web.interceptor.InterceptorException;

public class SecurityInterceptor extends AbstractPreActionInterceptor {

	private ISecurityManager securityManager;

	public ISecurityManager getSecurityManager() {
		return securityManager;
	}

	public void setSecurityManager(ISecurityManager securityManager) {
		this.securityManager = securityManager;
	}


	protected boolean doPreInterception(HttpServletRequest request,
			HttpServletResponse response, WebForm form)
			throws InterceptorException {		
		if (this.getSecurityManager() == null) {
			try{
			this.setSecurityManager(new PropertiesSecurityManager());
			}
			catch(SecurityException e)
			{			
			}
		}
		try {
			List conditions = this.getSecurityManager().findCondition(request,
					response);
			for (Iterator it = conditions.iterator(); it.hasNext();) {
				ICondition condition = (ICondition) it.next();
				if (condition != null) {
					boolean ret = condition.doCheck(request, response);
					if (!ret) {
						return false;
					}
				}
			}
		} catch (SecurityException ex) {
			throw new InterceptorException(this.getClass().getName()
					+ " cause error : " + ex.getInfo());
		}
		return true;
	}     
}