/**********************************************************************************
* $URL: https://source.sakaiproject.org/svn/metaobj/trunk/metaobj-util/tool-lib/src/java/org/sakaiproject/metaobj/security/control/tag/AuthZMapTag.java $
* $Id: AuthZMapTag.java 105079 2012-02-24 23:08:11Z ottenhoff@longsight.com $
***********************************************************************************
*
* Copyright (c) 2004, 2005, 2006, 2008 The Sakai Foundation
*
* Licensed under the Educational Community 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.opensource.org/licenses/ECL-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.sakaiproject.metaobj.security.control.tag;
import java.util.Map;
import javax.servlet.jsp.JspException;
import javax.servlet.jsp.PageContext;
import javax.servlet.jsp.tagext.TagSupport;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.sakaiproject.component.cover.ComponentManager;
import org.sakaiproject.metaobj.security.AuthorizationFacade;
import org.sakaiproject.metaobj.security.model.AuthZMap;
import org.sakaiproject.metaobj.shared.mgt.IdManager;
import org.sakaiproject.metaobj.shared.model.Id;
import org.sakaiproject.tool.cover.ToolManager;
public class AuthZMapTag extends TagSupport {
private Id qualifier;
private boolean useSite;
private String prefix;
private String var;
private int scope;
protected final transient Log logger = LogFactory.getLog(getClass());
public AuthZMapTag() {
init();
}
/**
* Default processing of the start tag, returning SKIP_BODY.
*
* @return SKIP_BODY
* @throws javax.servlet.jsp.JspException if an error occurs while processing this tag
* @see javax.servlet.jsp.tagext.Tag#doStartTag()
*/
public int doStartTag() throws JspException {
Map authz = new AuthZMap(getAuthzFacade(), getPrefix(), evaluateQualifier());
pageContext.setAttribute(getVar(), authz, getScope());
return super.doStartTag();
}
/**
* Release state.
*
* @see javax.servlet.jsp.tagext.Tag#release()
*/
public void release() {
super.release();
init();
}
protected AuthorizationFacade getAuthzFacade() {
return (AuthorizationFacade) ComponentManager.getInstance().get("org.sakaiproject.metaobj.security.AuthorizationFacade");
}
public String getPrefix() {
return prefix;
}
public void setPrefix(String prefix) {
this.prefix = prefix;
}
public Id evaluateQualifier() throws JspException {
Id qual;
if (isUseSite()) {
qual = getIdManager().getId(ToolManager.getCurrentPlacement().getContext());
}
else if (qualifier == null){
qual = getIdManager().getId(ToolManager.getCurrentPlacement().getId());
}
else {
qual = qualifier;
}
return qual;
}
public void setQualifier(Id qualifier) {
this.qualifier = qualifier;
}
public int getScope() {
return scope;
}
public String getVar() {
return var;
}
public void setVar(String var) {
this.var = var;
}
public void setScope(String scope) {
if (scope.equalsIgnoreCase("page")) {
this.scope = PageContext.PAGE_SCOPE;
}
else if (scope.equalsIgnoreCase("request")) {
this.scope = PageContext.REQUEST_SCOPE;
}
else if (scope.equalsIgnoreCase("session")) {
this.scope = PageContext.SESSION_SCOPE;
}
else if (scope.equalsIgnoreCase("application")) {
this.scope = PageContext.APPLICATION_SCOPE;
}
// TODO: Add error handling? Needs direction from spec.
}
// initializes internal state
protected void init() {
var = "can";
scope = PageContext.PAGE_SCOPE;
qualifier = null;
setUseSite(false);
}
protected IdManager getIdManager() {
return (IdManager) ComponentManager.getInstance().get("idManager");
}
public boolean isUseSite() {
return useSite;
}
public void setUseSite(boolean useSite) {
this.useSite = useSite;
}
}