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package com.sun.enterprise.security.authorize;
import java.security.SecurityPermission;
import javax.security.jacc.PolicyContextHandler;
/**
* This class is created by the container and handed over to the
* JACC provider. This lets the jacc provider to use the information
* in making authorization decisions, if it wishes to do so.
* @author Harpreet Singh
* @author Shing Wai Chan
*/
public class PolicyContextHandlerImpl implements PolicyContextHandler {
public static final String HTTP_SERVLET_REQUEST =
"javax.servlet.http.HttpServletRequest";
public static final String SOAP_MESSAGE = "javax.xml.soap.SOAPMessage";
public static final String ENTERPRISE_BEAN = "javax.ejb.EnterpriseBean";
public static final String EJB_ARGUMENTS = "javax.ejb.arguments";
public static final String SUBJECT = "javax.security.auth.Subject.container";
public static final String REUSE = "java.security.Policy.supportsReuse";
private static PolicyContextHandlerImpl pchimpl = null;
private static ThreadLocal thisHandlerData = new ThreadLocal();
private PolicyContextHandlerImpl() {
}
private synchronized static PolicyContextHandlerImpl _getInstance() {
if (pchimpl == null) {
pchimpl = new PolicyContextHandlerImpl();
}
return pchimpl;
}
public static PolicyContextHandler getInstance() {
SecurityManager sm = System.getSecurityManager();
if (sm != null) {
sm.checkPermission(new SecurityPermission("setPolicy"));
}
return _getInstance();
}
public boolean supports(String key) {
String[] s = getKeys();
for (int i = 0; i<s.length; i++) {
if (s[i].equalsIgnoreCase(key)) {
return true;
}
}
return false;
}
public String[] getKeys(){
String[] s = {
HTTP_SERVLET_REQUEST,
SOAP_MESSAGE,
ENTERPRISE_BEAN,
SUBJECT,
EJB_ARGUMENTS,
REUSE
};
return s;
}
public Object getContext(String key, Object data) {
// ignore data Object
return getHandlerData().get(key);
}
public HandlerData getHandlerData() {
HandlerData handlerData = (HandlerData)thisHandlerData.get();
if (handlerData == null) {
handlerData = HandlerData.getInstance();
thisHandlerData.set(handlerData);
}
return handlerData;
}
public void reset() {
HandlerData handlerData = (HandlerData)thisHandlerData.get();
if (handlerData != null) {
handlerData.reset();
}
thisHandlerData.set(null);
}
}