/*
* File: AddDatastream.java
*
* Copyright 2009 2DC
*
* 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.fcrepo.server.security.xacml.pep.rest.objectshandlers;
import java.io.IOException;
import java.net.URI;
import java.util.HashMap;
import java.util.Map;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.fcrepo.common.Constants;
import org.fcrepo.server.security.xacml.pdp.data.FedoraPolicyStore;
import org.fcrepo.server.security.xacml.pep.PEPException;
import org.fcrepo.server.security.xacml.pep.ResourceAttributes;
import org.fcrepo.server.security.xacml.pep.rest.filters.AbstractFilter;
import org.fcrepo.server.security.xacml.util.LogUtil;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.sun.xacml.attr.AnyURIAttribute;
import com.sun.xacml.attr.AttributeValue;
import com.sun.xacml.attr.StringAttribute;
import com.sun.xacml.ctx.RequestCtx;
/**
* Handles the AddDatastream operation.
*
* @author nish.naidoo@gmail.com
*/
public class AddDatastream
extends AbstractFilter {
private static final Logger logger =
LoggerFactory.getLogger(AddDatastream.class);
/**
* Default constructor.
*
* @throws PEPException
*/
public AddDatastream()
throws PEPException {
super();
}
/*
* (non-Javadoc)
* @see
* org.fcrepo.server.security.xacml.pep.rest.filters.RESTFilter#handleRequest(javax.servlet
* .http.HttpServletRequest, javax.servlet.http.HttpServletResponse)
*/
@Override
public RequestCtx handleRequest(HttpServletRequest request,
HttpServletResponse response)
throws IOException, ServletException {
if (logger.isDebugEnabled()) {
logger.debug("{}/handleRequest!", this.getClass().getName());
}
String[] parts = getPathParts(request);
// -/objects/{pid}/datastreams/{dsID}
if (parts.length < 4) {
logger.error("Not enough path components on the URI: {}", request.getRequestURI());
throw new ServletException("Not enough path components on the URI: " + request.getRequestURI());
}
String mimeType = request.getParameter("mimeType");
String formatURI = request.getParameter("formatURI");
String dsLocation = request.getParameter("dsLocation");
String controlGroup = request.getParameter("controlGroup");
String dsState = request.getParameter("dsState");
String checksumType = request.getParameter("checksumType");
String checksum = request.getParameter("checksum");
// String logMessage = null;
RequestCtx req = null;
Map<URI, AttributeValue> actions = new HashMap<URI, AttributeValue>();
Map<URI, AttributeValue> resAttr;
try {
resAttr = ResourceAttributes.getResources(parts);
if (mimeType != null && !"".equals(mimeType)) {
resAttr.put(Constants.DATASTREAM.NEW_MIME_TYPE.getURI(),
new StringAttribute(mimeType));
}
if (formatURI != null && !"".equals(formatURI)) {
resAttr.put(Constants.DATASTREAM.NEW_FORMAT_URI.getURI(),
new AnyURIAttribute(new URI(formatURI)));
}
if (dsLocation != null && !"".equals(dsLocation)) {
resAttr.put(Constants.DATASTREAM.NEW_LOCATION.getURI(),
new AnyURIAttribute(new URI(dsLocation)));
}
if (controlGroup != null && !"".equals(controlGroup)) {
resAttr.put(Constants.DATASTREAM.NEW_CONTROL_GROUP.getURI(),
new StringAttribute(controlGroup));
}
if (dsState != null && !"".equals(dsState)) {
resAttr.put(Constants.DATASTREAM.NEW_STATE.getURI(),
new StringAttribute(dsState));
}
if (checksumType != null && !"".equals(checksumType)) {
resAttr.put(Constants.DATASTREAM.NEW_CHECKSUM_TYPE.getURI(),
new StringAttribute(checksumType));
}
if (checksum != null && !"".equals(checksum)) {
resAttr.put(Constants.DATASTREAM.NEW_CHECKSUM.getURI(),
new StringAttribute(checksum));
}
actions.put(Constants.ACTION.ID.getURI(),
Constants.ACTION.ADD_DATASTREAM
.getStringAttribute());
actions.put(Constants.ACTION.API.getURI(),
Constants.ACTION.APIM.getStringAttribute());
String dsID = parts[3];
// modifying the FeSL policy datastream requires policy management permissions
if (dsID != null && dsID.equals(FedoraPolicyStore.FESL_POLICY_DATASTREAM)) {
actions.put(Constants.ACTION.ID.getURI(),
Constants.ACTION.MANAGE_POLICIES.getStringAttribute());
}
req =
getContextHandler().buildRequest(getSubjects(request),
actions,
resAttr,
getEnvironment(request));
LogUtil.statLog(request.getRemoteUser(),
Constants.ACTION.ADD_DATASTREAM.uri,
parts[1],
dsID);
} catch (Exception e) {
logger.error(e.getMessage(), e);
throw new ServletException(e.getMessage(), e);
}
return req;
}
/*
* (non-Javadoc)
* @see
* org.fcrepo.server.security.xacml.pep.rest.filters.RESTFilter#handleResponse(javax.servlet
* .http.HttpServletRequest, javax.servlet.http.HttpServletResponse)
*/
public RequestCtx handleResponse(HttpServletRequest request,
HttpServletResponse response)
throws IOException, ServletException {
return null;
}
}