package org.jboss.resteasy.security.smime;
import org.jboss.resteasy.plugins.providers.ProviderHelper;
import org.jboss.resteasy.security.BouncyIntegration;
import org.jboss.resteasy.spi.AsyncMessageBodyWriter;
import org.jboss.resteasy.spi.AsyncOutputStream;
import org.jboss.resteasy.spi.WriterException;
import javax.ws.rs.Produces;
import javax.ws.rs.WebApplicationException;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.MultivaluedMap;
import javax.ws.rs.ext.Provider;
import javax.ws.rs.ext.Providers;
import java.io.IOException;
import java.io.OutputStream;
import java.lang.annotation.Annotation;
import java.lang.reflect.Type;
import java.nio.charset.StandardCharsets;
import java.util.Base64;
import java.util.concurrent.CompletionStage;
@Provider
@Produces("text/plain")
public class PKCS7SignatureTextWriter implements AsyncMessageBodyWriter<SignedOutput>
{
static
{
BouncyIntegration.init();
}
@Context
protected Providers providers;
@Override
public boolean isWriteable(Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType)
{
return SignedOutput.class.isAssignableFrom(type);
}
@Override
public long getSize(SignedOutput smimeOutput, Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType)
{
return -1;
}
@Override
public void writeTo(SignedOutput out, Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType, MultivaluedMap<String, Object> headers, OutputStream os) throws IOException, WebApplicationException
{
try
{
byte[] encoded = PKCS7SignatureWriter.sign(providers, out);
os.write(Base64.getEncoder().encodeToString(encoded).getBytes(StandardCharsets.UTF_8));
}
catch (Exception e)
{
throw new WriterException(e);
}
}
@Override
public CompletionStage<Void> asyncWriteTo(SignedOutput out, Class<?> type, Type genericType, Annotation[] annotations,
MediaType mediaType, MultivaluedMap<String, Object> httpHeaders,
AsyncOutputStream entityStream) {
try
{
byte[] encoded = PKCS7SignatureWriter.sign(providers, out);
return entityStream.asyncWrite(Base64.getEncoder().encodeToString(encoded).getBytes(StandardCharsets.UTF_8));
}
catch (Exception e)
{
return ProviderHelper.completedException(new WriterException(e));
}
}
}