/
MultiParts.java
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/
MultiParts.java
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//
// ========================================================================
// Copyright (c) 1995-2022 Mort Bay Consulting Pty Ltd and others.
// ------------------------------------------------------------------------
// All rights reserved. This program and the accompanying materials
// are made available under the terms of the Eclipse Public License v1.0
// and Apache License v2.0 which accompanies this distribution.
//
// The Eclipse Public License is available at
// http://www.eclipse.org/legal/epl-v10.html
//
// The Apache License v2.0 is available at
// http://www.opensource.org/licenses/apache2.0.php
//
// You may elect to redistribute this code under either of these licenses.
// ========================================================================
//
package org.eclipse.jetty.server;
import java.io.Closeable;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.Collection;
import java.util.EnumSet;
import java.util.List;
import javax.servlet.MultipartConfigElement;
import javax.servlet.http.Part;
import org.eclipse.jetty.http.HttpCompliance;
import org.eclipse.jetty.http.MultiPartFormInputStream;
import org.eclipse.jetty.server.handler.ContextHandler;
import org.eclipse.jetty.server.handler.ContextHandler.Context;
import org.eclipse.jetty.util.MultiPartInputStreamParser;
import org.eclipse.jetty.util.MultiPartInputStreamParser.NonCompliance;
/*
* Used to switch between the old and new implementation of MultiPart Form InputStream Parsing.
* The new implementation is preferred will be used as default unless specified otherwise constructor.
*/
public interface MultiParts extends Closeable
{
Collection<Part> getParts() throws IOException;
Part getPart(String name) throws IOException;
boolean isEmpty();
ContextHandler.Context getContext();
class MultiPartsHttpParser implements MultiParts
{
private final MultiPartFormInputStream _httpParser;
private final ContextHandler.Context _context;
private final Request _request;
public MultiPartsHttpParser(InputStream in, String contentType, MultipartConfigElement config, File contextTmpDir, Request request) throws IOException
{
_httpParser = new MultiPartFormInputStream(in, contentType, config, contextTmpDir);
_context = request.getContext();
_request = request;
}
@Override
public Collection<Part> getParts() throws IOException
{
Collection<Part> parts = _httpParser.getParts();
setNonComplianceViolationsOnRequest();
return parts;
}
@Override
public Part getPart(String name) throws IOException
{
Part part = _httpParser.getPart(name);
setNonComplianceViolationsOnRequest();
return part;
}
@Override
public void close()
{
_httpParser.deleteParts();
}
@Override
public boolean isEmpty()
{
return _httpParser.isEmpty();
}
@Override
public Context getContext()
{
return _context;
}
private void setNonComplianceViolationsOnRequest()
{
@SuppressWarnings("unchecked")
List<String> violations = (List<String>)_request.getAttribute(HttpCompliance.VIOLATIONS_ATTR);
if (violations != null)
return;
EnumSet<MultiPartFormInputStream.NonCompliance> nonComplianceWarnings = _httpParser.getNonComplianceWarnings();
violations = new ArrayList<>();
for (MultiPartFormInputStream.NonCompliance nc : nonComplianceWarnings)
{
violations.add(nc.name() + ": " + nc.getURL());
}
_request.setAttribute(HttpCompliance.VIOLATIONS_ATTR, violations);
}
}
@SuppressWarnings("deprecation")
class MultiPartsUtilParser implements MultiParts
{
private final MultiPartInputStreamParser _utilParser;
private final ContextHandler.Context _context;
private final Request _request;
public MultiPartsUtilParser(InputStream in, String contentType, MultipartConfigElement config, File contextTmpDir, Request request) throws IOException
{
_utilParser = new MultiPartInputStreamParser(in, contentType, config, contextTmpDir);
_context = request.getContext();
_request = request;
}
@Override
public Collection<Part> getParts() throws IOException
{
Collection<Part> parts = _utilParser.getParts();
setNonComplianceViolationsOnRequest();
return parts;
}
@Override
public Part getPart(String name) throws IOException
{
Part part = _utilParser.getPart(name);
setNonComplianceViolationsOnRequest();
return part;
}
@Override
public void close()
{
_utilParser.deleteParts();
}
@Override
public boolean isEmpty()
{
return _utilParser.getParsedParts().isEmpty();
}
@Override
public Context getContext()
{
return _context;
}
private void setNonComplianceViolationsOnRequest()
{
@SuppressWarnings("unchecked")
List<String> violations = (List<String>)_request.getAttribute(HttpCompliance.VIOLATIONS_ATTR);
if (violations != null)
return;
EnumSet<NonCompliance> nonComplianceWarnings = _utilParser.getNonComplianceWarnings();
violations = new ArrayList<>();
for (NonCompliance nc : nonComplianceWarnings)
{
violations.add(nc.name() + ": " + nc.getURL());
}
_request.setAttribute(HttpCompliance.VIOLATIONS_ATTR, violations);
}
}
}