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Milton Community Edition: Supports DAV level 1 and is available on Apache2 license
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 io.milton.http.json;
import io.milton.common.Path;
import io.milton.common.Utils;
import io.milton.http.FileItem;
import io.milton.http.Range;
import io.milton.http.Request;
import io.milton.http.Request.Method;
import io.milton.http.ResourceFactory;
import io.milton.http.exceptions.BadRequestException;
import io.milton.http.exceptions.ConflictException;
import io.milton.http.exceptions.NotAuthorizedException;
import io.milton.resource.CollectionResource;
import io.milton.resource.CopyableResource;
import io.milton.resource.PostableResource;
import io.milton.resource.Resource;
import java.io.IOException;
import java.io.OutputStream;
import java.util.Map;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Forwards the POST request to the copy method on the wrapped
* resource, looking up destination collection and name from the "destination" request parameter
*
* @author brad
*/
public class CopyJsonResource extends JsonResource implements PostableResource{
private static final Logger log = LoggerFactory.getLogger( CopyJsonResource.class );
private final String host;
private final ResourceFactory resourceFactory;
private final CopyableResource wrapped;
public CopyJsonResource( String host, CopyableResource copyableResource, ResourceFactory resourceFactory ) {
super(copyableResource, Request.Method.COPY.code, null);
this.host = host;
this.wrapped = copyableResource;
this.resourceFactory = resourceFactory;
}
public String processForm( Map parameters, Map files ) throws BadRequestException, NotAuthorizedException {
String destHeader = parameters.get( "destination");
String dest = Utils.decodePath(destHeader);
Path pDest = Path.path( dest );
Resource rDestParent = resourceFactory.getResource( host, pDest.getParent().toString());
if( rDestParent == null ) throw new BadRequestException( wrapped, "The destination parent does not exist");
if(rDestParent instanceof CollectionResource ) {
CollectionResource colDestParent = (CollectionResource) rDestParent;
if( colDestParent.child( pDest.getName()) == null ) {
try {
wrapped.copyTo( colDestParent, pDest.getName() );
} catch( ConflictException ex ) {
log.warn( "Exception copying to: " + pDest.getName(), ex);
throw new BadRequestException( rDestParent, "conflict: " + ex.getMessage());
}
return null;
} else {
log.warn( "destination already exists: " + pDest.getName());
throw new BadRequestException( rDestParent, "File already exists");
}
} else {
throw new BadRequestException( wrapped, "The destination parent is not a collection resource");
}
}
public void sendContent( OutputStream out, Range range, Map params, String contentType ) throws IOException, NotAuthorizedException, BadRequestException {
// nothing to do
}
@Override
public Method applicableMethod() {
return Method.COPY;
}
}