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/*
 * Copyright (c) 1997, 2021 Oracle and/or its affiliates. All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0, which is available at
 * http://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */

package com.sun.xml.ws.encoding;

import com.sun.xml.ws.api.SOAPVersion;
import com.sun.xml.ws.api.WSFeatureList;
import com.sun.xml.ws.api.message.Packet;
import com.sun.xml.ws.api.pipe.Codec;
import com.sun.xml.ws.api.pipe.ContentType;
import com.sun.xml.ws.client.ContentNegotiation;
import com.sun.xml.ws.encoding.xml.XMLCodec;
import com.sun.xml.ws.encoding.xml.XMLMessage;
import com.sun.xml.ws.encoding.xml.XMLMessage.MessageDataSource;
import com.sun.xml.ws.encoding.xml.XMLMessage.UnknownContent;
import com.sun.xml.ws.encoding.xml.XMLMessage.XMLMultiPart;
import com.sun.xml.ws.resources.StreamingMessages;
import com.sun.xml.ws.util.ByteArrayBuffer;
import com.sun.xml.ws.util.FastInfosetUtil;

import jakarta.activation.DataSource;
import jakarta.xml.ws.WebServiceException;

import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.nio.channels.WritableByteChannel;
import java.util.StringTokenizer;

/**
 * XML (infoset) over HTTP binding {@link Codec}.
 * 

* TODO: Support FI for multipart/related * Support FI for MessageDataSource * * @author Jitendra Kotamraju */ public final class XMLHTTPBindingCodec extends MimeCodec { /** * Base HTTP Accept request-header. */ private static final String BASE_ACCEPT_VALUE = "*"; /** * Fast Infoset MIME type. */ private static final String APPLICATION_FAST_INFOSET_MIME_TYPE = "application/fastinfoset"; /** * True if the Fast Infoset codec should be used */ private boolean useFastInfosetForEncoding; /** * The XML codec */ private final Codec xmlCodec; /** * The FI codec */ private final Codec fiCodec; /** * The Accept header for XML encodings */ private static final String xmlAccept = null; /** * The Accept header for Fast Infoset and XML encodings */ private static final String fiXmlAccept = APPLICATION_FAST_INFOSET_MIME_TYPE + ", " + BASE_ACCEPT_VALUE; private ContentTypeImpl setAcceptHeader(Packet p, ContentType c) { ContentTypeImpl ctImpl = (ContentTypeImpl)c; if (p.contentNegotiation == ContentNegotiation.optimistic || p.contentNegotiation == ContentNegotiation.pessimistic) { ctImpl.setAcceptHeader(fiXmlAccept); } else { ctImpl.setAcceptHeader(xmlAccept); } p.setContentType(ctImpl); return ctImpl; } public XMLHTTPBindingCodec(WSFeatureList f) { super(SOAPVersion.SOAP_11, f); xmlCodec = new XMLCodec(f); fiCodec = FastInfosetUtil.getFICodec(); } @Override public String getMimeType() { return null; } @Override public ContentType getStaticContentType(Packet packet) { ContentType ct; if (packet.getInternalMessage() instanceof MessageDataSource) { final MessageDataSource mds = (MessageDataSource)packet.getInternalMessage(); if (mds.hasUnconsumedDataSource()) { ct = getStaticContentType(mds); return (ct != null) ? setAcceptHeader(packet, ct) //_adaptingContentType.set(packet, ct) : null; } } ct = super.getStaticContentType(packet); return (ct != null) ? setAcceptHeader(packet, ct) //_adaptingContentType.set(packet, ct) : null; } @Override public ContentType encode(Packet packet, OutputStream out) throws IOException { if (packet.getInternalMessage() instanceof MessageDataSource) { final MessageDataSource mds = (MessageDataSource)packet.getInternalMessage(); if (mds.hasUnconsumedDataSource()) return setAcceptHeader(packet, encode(mds, out)); } return setAcceptHeader(packet, super.encode(packet, out)); } @Override public ContentType encode(Packet packet, WritableByteChannel buffer) { throw new UnsupportedOperationException(); } @Override public void decode(InputStream in, String contentType, Packet packet) throws IOException { /** * Reset the encoding state when on the server side for each * decode/encode step. */ if (packet.contentNegotiation == null) useFastInfosetForEncoding = false; if (contentType == null) { xmlCodec.decode(in, contentType, packet); } else if (isMultipartRelated(contentType)) { packet.setMessage(new XMLMultiPart(contentType, in, features)); } else if(isFastInfoset(contentType)) { if (fiCodec == null) { throw new RuntimeException(StreamingMessages.FASTINFOSET_NO_IMPLEMENTATION()); } useFastInfosetForEncoding = true; fiCodec.decode(in, contentType, packet); } else if (isXml(contentType)) { xmlCodec.decode(in, contentType, packet); } else { packet.setMessage(new UnknownContent(contentType, in)); } if (!useFastInfosetForEncoding) { useFastInfosetForEncoding = isFastInfosetAcceptable(packet.acceptableMimeTypes); } } @Override protected void decode(MimeMultipartParser mpp, Packet packet) throws IOException { // This method will never be invoked } @Override public MimeCodec copy() { return new XMLHTTPBindingCodec(features); } private boolean isMultipartRelated(String contentType) { return compareStrings(contentType, MimeCodec.MULTIPART_RELATED_MIME_TYPE); } private boolean isXml(String contentType) { return compareStrings(contentType, XMLCodec.XML_APPLICATION_MIME_TYPE) || compareStrings(contentType, XMLCodec.XML_TEXT_MIME_TYPE) || (compareStrings(contentType, "application/") && contentType.toLowerCase().contains("+xml")); } private boolean isFastInfoset(String contentType) { return compareStrings(contentType, APPLICATION_FAST_INFOSET_MIME_TYPE); } private boolean compareStrings(String a, String b) { return a.length() >= b.length() && b.equalsIgnoreCase( a.substring(0, b.length())); } private boolean isFastInfosetAcceptable(String accept) { if (accept == null) return false; StringTokenizer st = new StringTokenizer(accept, ","); while (st.hasMoreTokens()) { final String token = st.nextToken().trim(); if (token.equalsIgnoreCase(APPLICATION_FAST_INFOSET_MIME_TYPE)) { return true; } } return false; } private ContentType getStaticContentType(MessageDataSource mds) { final String contentType = mds.getDataSource().getContentType(); final boolean isFastInfoset = XMLMessage.isFastInfoset(contentType); if (!requiresTransformationOfDataSource(isFastInfoset, useFastInfosetForEncoding)) { return new ContentTypeImpl(contentType); } else { return null; } } private ContentType encode(MessageDataSource mds, OutputStream out) { try { final boolean isFastInfoset = XMLMessage.isFastInfoset( mds.getDataSource().getContentType()); DataSource ds = transformDataSource(mds.getDataSource(), isFastInfoset, useFastInfosetForEncoding, features); InputStream is = ds.getInputStream(); byte[] buf = new byte[1024]; int count; while((count=is.read(buf)) != -1) { out.write(buf, 0, count); } return new ContentTypeImpl(ds.getContentType()); } catch(IOException ioe) { throw new WebServiceException(ioe); } } @Override protected Codec getMimeRootCodec(Packet p) { /** * The following logic is only for outbound packets * to be encoded by client. * On the server the p.contentNegotiation == null. */ if (p.contentNegotiation == ContentNegotiation.none) { // The client may have changed the negotiation property from // pessismistic to none between invocations useFastInfosetForEncoding = false; } else if (p.contentNegotiation == ContentNegotiation.optimistic) { // Always encode using Fast Infoset if in optimisitic mode useFastInfosetForEncoding = true; } return (useFastInfosetForEncoding && fiCodec != null)? fiCodec : xmlCodec; } public static boolean requiresTransformationOfDataSource( boolean isFastInfoset, boolean useFastInfoset) { return (isFastInfoset && !useFastInfoset) || (!isFastInfoset && useFastInfoset); } public static DataSource transformDataSource(DataSource in, boolean isFastInfoset, boolean useFastInfoset, WSFeatureList f) { try { if (isFastInfoset && !useFastInfoset) { // Convert from Fast Infoset to XML Codec codec = new XMLHTTPBindingCodec(f); Packet p = new Packet(); codec.decode(in.getInputStream(), in.getContentType(), p); p.getMessage().getAttachments(); codec.getStaticContentType(p); ByteArrayBuffer bos = new ByteArrayBuffer(); ContentType ct = codec.encode(p, bos); return XMLMessage.createDataSource(ct.getContentType(), bos.newInputStream()); } else if (!isFastInfoset && useFastInfoset) { // Convert from XML to Fast Infoset Codec codec = new XMLHTTPBindingCodec(f); Packet p = new Packet(); codec.decode(in.getInputStream(), in.getContentType(), p); p.contentNegotiation = ContentNegotiation.optimistic; p.getMessage().getAttachments(); codec.getStaticContentType(p); ByteArrayBuffer bos = new ByteArrayBuffer(); com.sun.xml.ws.api.pipe.ContentType ct = codec.encode(p, bos); return XMLMessage.createDataSource(ct.getContentType(), bos.newInputStream()); } } catch(Exception ex) { throw new WebServiceException(ex); } return in; } }





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