/**
* 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 org.apache.cxf.rs.security.jose.jaxrs.multipart;
import java.io.OutputStream;
import java.util.List;
import javax.activation.DataHandler;
import org.apache.cxf.attachment.ByteDataSource;
import org.apache.cxf.jaxrs.ext.multipart.Attachment;
import org.apache.cxf.jaxrs.ext.multipart.MultipartOutputFilter;
import org.apache.cxf.rs.security.jose.jws.JwsException;
import org.apache.cxf.rs.security.jose.jws.JwsOutputStream;
import org.apache.cxf.rs.security.jose.jws.JwsSignature;
public class JwsMultipartSignatureOutFilter implements MultipartOutputFilter {
private JwsSignature sig;
public JwsMultipartSignatureOutFilter(JwsSignature sig) {
this.sig = sig;
}
@Override
public void filter(List<Attachment> parts) {
for (int i = 0; i < parts.size() - 1; i++) {
Attachment dataPart = parts.get(i);
DataHandler handler = dataPart.getDataHandler();
dataPart.setDataHandler(new JwsSignatureDataHandler(handler));
}
}
private class JwsSignatureDataHandler extends DataHandler {
private DataHandler handler;
JwsSignatureDataHandler(DataHandler handler) {
super(new ByteDataSource("1".getBytes()));
this.handler = handler;
}
@Override
public String getContentType() {
return handler.getContentType();
}
@Override
public void writeTo(OutputStream os) {
JwsOutputStream jwsOutStream = new JwsOutputStream(os, sig, false);
try {
handler.writeTo(jwsOutStream);
jwsOutStream.flush();
} catch (Exception ex) {
throw new JwsException(JwsException.Error.INVALID_SIGNATURE);
}
}
}
}