| /* |
| * ==================================================================== |
| * 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. |
| * ==================================================================== |
| * |
| * This software consists of voluntary contributions made by many |
| * individuals on behalf of the Apache Software Foundation. For more |
| * information on the Apache Software Foundation, please see |
| * <http://www.apache.org/>. |
| * |
| */ |
| |
| package org.apache.hc.core5.http.impl.io; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.OutputStream; |
| import java.net.Socket; |
| import java.nio.charset.CharsetDecoder; |
| import java.nio.charset.CharsetEncoder; |
| import java.util.Iterator; |
| |
| import org.apache.hc.core5.http.ClassicHttpRequest; |
| import org.apache.hc.core5.http.ClassicHttpResponse; |
| import org.apache.hc.core5.http.ContentLengthStrategy; |
| import org.apache.hc.core5.http.HeaderElements; |
| import org.apache.hc.core5.http.HttpEntity; |
| import org.apache.hc.core5.http.HttpException; |
| import org.apache.hc.core5.http.HttpHeaders; |
| import org.apache.hc.core5.http.HttpStatus; |
| import org.apache.hc.core5.http.HttpVersion; |
| import org.apache.hc.core5.http.LengthRequiredException; |
| import org.apache.hc.core5.http.ProtocolException; |
| import org.apache.hc.core5.http.ProtocolVersion; |
| import org.apache.hc.core5.http.UnsupportedHttpVersionException; |
| import org.apache.hc.core5.http.config.Http1Config; |
| import org.apache.hc.core5.http.impl.DefaultContentLengthStrategy; |
| import org.apache.hc.core5.http.io.HttpClientConnection; |
| import org.apache.hc.core5.http.io.HttpMessageParser; |
| import org.apache.hc.core5.http.io.HttpMessageParserFactory; |
| import org.apache.hc.core5.http.io.HttpMessageWriter; |
| import org.apache.hc.core5.http.io.HttpMessageWriterFactory; |
| import org.apache.hc.core5.http.io.ResponseOutOfOrderStrategy; |
| import org.apache.hc.core5.http.message.BasicTokenIterator; |
| import org.apache.hc.core5.util.Args; |
| |
| /** |
| * Default implementation of {@link HttpClientConnection}. |
| * |
| * @since 4.3 |
| */ |
| public class DefaultBHttpClientConnection extends BHttpConnectionBase |
| implements HttpClientConnection { |
| |
| private final HttpMessageParser<ClassicHttpResponse> responseParser; |
| private final HttpMessageWriter<ClassicHttpRequest> requestWriter; |
| private final ContentLengthStrategy incomingContentStrategy; |
| private final ContentLengthStrategy outgoingContentStrategy; |
| private final ResponseOutOfOrderStrategy responseOutOfOrderStrategy; |
| private volatile boolean consistent; |
| |
| /** |
| * Creates new instance of DefaultBHttpClientConnection. |
| * |
| * @param http1Config Message http1Config. If {@code null} |
| * {@link Http1Config#DEFAULT} will be used. |
| * @param charDecoder decoder to be used for decoding HTTP protocol elements. |
| * If {@code null} simple type cast will be used for byte to char conversion. |
| * @param charEncoder encoder to be used for encoding HTTP protocol elements. |
| * If {@code null} simple type cast will be used for char to byte conversion. |
| * @param incomingContentStrategy incoming content length strategy. If {@code null} |
| * {@link DefaultContentLengthStrategy#INSTANCE} will be used. |
| * @param outgoingContentStrategy outgoing content length strategy. If {@code null} |
| * {@link DefaultContentLengthStrategy#INSTANCE} will be used. |
| * @param responseOutOfOrderStrategy response out of order strategy. If {@code null} |
| * {@link NoResponseOutOfOrderStrategy#INSTANCE} will be used. |
| * @param requestWriterFactory request writer factory. If {@code null} |
| * {@link DefaultHttpRequestWriterFactory#INSTANCE} will be used. |
| * @param responseParserFactory response parser factory. If {@code null} |
| * {@link DefaultHttpResponseParserFactory#INSTANCE} will be used. |
| */ |
| public DefaultBHttpClientConnection( |
| final Http1Config http1Config, |
| final CharsetDecoder charDecoder, |
| final CharsetEncoder charEncoder, |
| final ContentLengthStrategy incomingContentStrategy, |
| final ContentLengthStrategy outgoingContentStrategy, |
| final ResponseOutOfOrderStrategy responseOutOfOrderStrategy, |
| final HttpMessageWriterFactory<ClassicHttpRequest> requestWriterFactory, |
| final HttpMessageParserFactory<ClassicHttpResponse> responseParserFactory) { |
| super(http1Config, charDecoder, charEncoder); |
| this.requestWriter = (requestWriterFactory != null ? requestWriterFactory : |
| DefaultHttpRequestWriterFactory.INSTANCE).create(); |
| this.responseParser = (responseParserFactory != null ? responseParserFactory : |
| DefaultHttpResponseParserFactory.INSTANCE).create(http1Config); |
| this.incomingContentStrategy = incomingContentStrategy != null ? incomingContentStrategy : |
| DefaultContentLengthStrategy.INSTANCE; |
| this.outgoingContentStrategy = outgoingContentStrategy != null ? outgoingContentStrategy : |
| DefaultContentLengthStrategy.INSTANCE; |
| this.responseOutOfOrderStrategy = responseOutOfOrderStrategy != null ? responseOutOfOrderStrategy : |
| NoResponseOutOfOrderStrategy.INSTANCE; |
| this.consistent = true; |
| } |
| |
| /** |
| * Creates new instance of DefaultBHttpClientConnection. |
| * |
| * @param http1Config Message http1Config. If {@code null} |
| * {@link Http1Config#DEFAULT} will be used. |
| * @param charDecoder decoder to be used for decoding HTTP protocol elements. |
| * If {@code null} simple type cast will be used for byte to char conversion. |
| * @param charEncoder encoder to be used for encoding HTTP protocol elements. |
| * If {@code null} simple type cast will be used for char to byte conversion. |
| * @param incomingContentStrategy incoming content length strategy. If {@code null} |
| * {@link DefaultContentLengthStrategy#INSTANCE} will be used. |
| * @param outgoingContentStrategy outgoing content length strategy. If {@code null} |
| * {@link DefaultContentLengthStrategy#INSTANCE} will be used. |
| * @param requestWriterFactory request writer factory. If {@code null} |
| * {@link DefaultHttpRequestWriterFactory#INSTANCE} will be used. |
| * @param responseParserFactory response parser factory. If {@code null} |
| * {@link DefaultHttpResponseParserFactory#INSTANCE} will be used. |
| */ |
| public DefaultBHttpClientConnection( |
| final Http1Config http1Config, |
| final CharsetDecoder charDecoder, |
| final CharsetEncoder charEncoder, |
| final ContentLengthStrategy incomingContentStrategy, |
| final ContentLengthStrategy outgoingContentStrategy, |
| final HttpMessageWriterFactory<ClassicHttpRequest> requestWriterFactory, |
| final HttpMessageParserFactory<ClassicHttpResponse> responseParserFactory) { |
| this( |
| http1Config, |
| charDecoder, |
| charEncoder, |
| incomingContentStrategy, |
| outgoingContentStrategy, |
| null, |
| requestWriterFactory, |
| responseParserFactory); |
| } |
| |
| public DefaultBHttpClientConnection( |
| final Http1Config http1Config, |
| final CharsetDecoder charDecoder, |
| final CharsetEncoder charEncoder) { |
| this(http1Config, charDecoder, charEncoder, null, null, null, null); |
| } |
| |
| public DefaultBHttpClientConnection(final Http1Config http1Config) { |
| this(http1Config, null, null); |
| } |
| |
| protected void onResponseReceived(final ClassicHttpResponse response) { |
| } |
| |
| protected void onRequestSubmitted(final ClassicHttpRequest request) { |
| } |
| |
| @Override |
| public void bind(final Socket socket) throws IOException { |
| super.bind(socket); |
| } |
| |
| @Override |
| public void sendRequestHeader(final ClassicHttpRequest request) |
| throws HttpException, IOException { |
| Args.notNull(request, "HTTP request"); |
| final SocketHolder socketHolder = ensureOpen(); |
| this.requestWriter.write(request, this.outbuffer, socketHolder.getOutputStream()); |
| onRequestSubmitted(request); |
| incrementRequestCount(); |
| } |
| |
| @Override |
| public void sendRequestEntity(final ClassicHttpRequest request) throws HttpException, IOException { |
| Args.notNull(request, "HTTP request"); |
| final SocketHolder socketHolder = ensureOpen(); |
| final HttpEntity entity = request.getEntity(); |
| if (entity == null) { |
| return; |
| } |
| final long len = this.outgoingContentStrategy.determineLength(request); |
| if (len == ContentLengthStrategy.UNDEFINED) { |
| throw new LengthRequiredException(); |
| } |
| try (final OutputStream outStream = createContentOutputStream( |
| len, this.outbuffer, new OutputStream() { |
| |
| final OutputStream socketOutputStream = socketHolder.getOutputStream(); |
| final InputStream socketInputStream = socketHolder.getInputStream(); |
| |
| long totalBytes; |
| |
| void checkForEarlyResponse(final long totalBytesSent, final int nextWriteSize) throws IOException { |
| if (responseOutOfOrderStrategy.isEarlyResponseDetected( |
| request, |
| DefaultBHttpClientConnection.this, |
| socketInputStream, |
| totalBytesSent, |
| nextWriteSize)) { |
| throw new ResponseOutOfOrderException(); |
| } |
| } |
| |
| @Override |
| public void write(final byte[] b) throws IOException { |
| checkForEarlyResponse(totalBytes, b.length); |
| totalBytes += b.length; |
| socketOutputStream.write(b); |
| } |
| |
| @Override |
| public void write(final byte[] b, final int off, final int len) throws IOException { |
| checkForEarlyResponse(totalBytes, len); |
| totalBytes += len; |
| socketOutputStream.write(b, off, len); |
| } |
| |
| @Override |
| public void write(final int b) throws IOException { |
| checkForEarlyResponse(totalBytes, 1); |
| totalBytes++; |
| socketOutputStream.write(b); |
| } |
| |
| @Override |
| public void flush() throws IOException { |
| socketOutputStream.flush(); |
| } |
| |
| @Override |
| public void close() throws IOException { |
| socketOutputStream.close(); |
| } |
| |
| }, entity.getTrailers())) { |
| entity.writeTo(outStream); |
| } catch (final ResponseOutOfOrderException ex) { |
| if (len > 0) { |
| this.consistent = false; |
| } |
| } |
| } |
| |
| @Override |
| public boolean isConsistent() { |
| return this.consistent; |
| } |
| |
| @Override |
| public void terminateRequest(final ClassicHttpRequest request) throws HttpException, IOException { |
| Args.notNull(request, "HTTP request"); |
| final SocketHolder socketHolder = ensureOpen(); |
| final HttpEntity entity = request.getEntity(); |
| if (entity == null) { |
| return; |
| } |
| final Iterator<String> ti = new BasicTokenIterator(request.headerIterator(HttpHeaders.CONNECTION)); |
| while (ti.hasNext()) { |
| final String token = ti.next(); |
| if (HeaderElements.CLOSE.equalsIgnoreCase(token)) { |
| this.consistent = false; |
| return; |
| } |
| } |
| final long len = this.outgoingContentStrategy.determineLength(request); |
| if (len == ContentLengthStrategy.CHUNKED) { |
| try (final OutputStream outStream = createContentOutputStream(len, this.outbuffer, socketHolder.getOutputStream(), entity.getTrailers())) { |
| // just close |
| } |
| } else if (len >= 0 && len <= 1024) { |
| try (final OutputStream outStream = createContentOutputStream(len, this.outbuffer, socketHolder.getOutputStream(), null)) { |
| entity.writeTo(outStream); |
| } |
| } else { |
| this.consistent = false; |
| } |
| } |
| |
| @Override |
| public ClassicHttpResponse receiveResponseHeader() throws HttpException, IOException { |
| final SocketHolder socketHolder = ensureOpen(); |
| final ClassicHttpResponse response = this.responseParser.parse(this.inBuffer, socketHolder.getInputStream()); |
| final ProtocolVersion transportVersion = response.getVersion(); |
| if (transportVersion != null && transportVersion.greaterEquals(HttpVersion.HTTP_2)) { |
| throw new UnsupportedHttpVersionException(transportVersion); |
| } |
| this.version = transportVersion; |
| onResponseReceived(response); |
| final int status = response.getCode(); |
| if (status < HttpStatus.SC_INFORMATIONAL) { |
| throw new ProtocolException("Invalid response: " + status); |
| } |
| if (response.getCode() >= HttpStatus.SC_SUCCESS) { |
| incrementResponseCount(); |
| } |
| return response; |
| } |
| |
| @Override |
| public void receiveResponseEntity( final ClassicHttpResponse response) throws HttpException, IOException { |
| Args.notNull(response, "HTTP response"); |
| final SocketHolder socketHolder = ensureOpen(); |
| final long len = this.incomingContentStrategy.determineLength(response); |
| response.setEntity(createIncomingEntity(response, this.inBuffer, socketHolder.getInputStream(), len)); |
| } |
| } |
