io.undertow.io.BlockingReceiverImpl Maven / Gradle / Ivy
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This artifact provides a single jar that contains all classes required to use remote EJB and JMS, including
all dependencies. It is intended for use by those not using maven, maven users should just import the EJB and
JMS BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up
with different versions on classes on the class path).
/*
* JBoss, Home of Professional Open Source.
* Copyright 2014 Red Hat, Inc., and individual contributors
* as indicated by the @author tags.
*
* Licensed 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 io.undertow.io;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.nio.CharBuffer;
import java.nio.charset.Charset;
import java.nio.charset.CharsetDecoder;
import java.nio.charset.StandardCharsets;
import io.undertow.UndertowLogger;
import io.undertow.UndertowMessages;
import io.undertow.connector.PooledByteBuffer;
import io.undertow.server.HttpServerExchange;
import io.undertow.util.Headers;
import io.undertow.util.StatusCodes;
/**
* @author Stuart Douglas
*/
public class BlockingReceiverImpl implements Receiver {
private static final ErrorCallback END_EXCHANGE = new ErrorCallback() {
@Override
public void error(HttpServerExchange exchange, IOException e) {
if(!exchange.isResponseStarted()) {
exchange.setStatusCode(StatusCodes.INTERNAL_SERVER_ERROR);
}
exchange.setPersistent(false);
UndertowLogger.REQUEST_IO_LOGGER.ioException(e);
exchange.endExchange();
}
};
public static final byte[] EMPTY_BYTE_ARRAY = new byte[0];
private final HttpServerExchange exchange;
private final InputStream inputStream;
private int maxBufferSize = -1;
private boolean done = false;
public BlockingReceiverImpl(HttpServerExchange exchange, InputStream inputStream) {
this.exchange = exchange;
this.inputStream = inputStream;
}
@Override
public void setMaxBufferSize(int maxBufferSize) {
this.maxBufferSize = maxBufferSize;
}
@Override
public void receiveFullString(final FullStringCallback callback, ErrorCallback errorCallback) {
receiveFullString(callback, errorCallback, StandardCharsets.ISO_8859_1);
}
@Override
public void receiveFullString(FullStringCallback callback) {
receiveFullString(callback, END_EXCHANGE, StandardCharsets.ISO_8859_1);
}
@Override
public void receivePartialString(PartialStringCallback callback, ErrorCallback errorCallback) {
receivePartialString(callback, errorCallback, StandardCharsets.ISO_8859_1);
}
@Override
public void receivePartialString(PartialStringCallback callback) {
receivePartialString(callback, END_EXCHANGE, StandardCharsets.ISO_8859_1);
}
@Override
public void receiveFullString(final FullStringCallback callback, final ErrorCallback errorCallback, final Charset charset) {
if(done) {
throw UndertowMessages.MESSAGES.requestBodyAlreadyRead();
}
final ErrorCallback error = errorCallback == null ? END_EXCHANGE : errorCallback;
if (callback == null) {
throw UndertowMessages.MESSAGES.argumentCannotBeNull("callback");
}
if (exchange.isRequestComplete()) {
callback.handle(exchange, "");
return;
}
String contentLengthString = exchange.getRequestHeaders().getFirst(Headers.CONTENT_LENGTH);
long contentLength;
final ByteArrayOutputStream sb;
if (contentLengthString != null) {
contentLength = Long.parseLong(contentLengthString);
if (contentLength > Integer.MAX_VALUE) {
error.error(exchange, new RequestToLargeException());
return;
}
sb = new ByteArrayOutputStream((int) contentLength);
} else {
contentLength = -1;
sb = new ByteArrayOutputStream();
}
if (maxBufferSize > 0) {
if (contentLength > maxBufferSize) {
error.error(exchange, new RequestToLargeException());
return;
}
}
int s;
try (PooledByteBuffer pooled = exchange.getConnection().getByteBufferPool().getArrayBackedPool().allocate()) {
while ((s = inputStream.read(pooled.getBuffer().array(), pooled.getBuffer().arrayOffset(), pooled.getBuffer().remaining())) > 0) {
sb.write(pooled.getBuffer().array(), pooled.getBuffer().arrayOffset(), s);
}
callback.handle(exchange, sb.toString(charset.name()));
} catch (IOException e) {
error.error(exchange, e);
}
}
@Override
public void receiveFullString(FullStringCallback callback, Charset charset) {
receiveFullString(callback, END_EXCHANGE, charset);
}
@Override
public void receivePartialString(final PartialStringCallback callback, final ErrorCallback errorCallback, Charset charset) {
if(done) {
throw UndertowMessages.MESSAGES.requestBodyAlreadyRead();
}
final ErrorCallback error = errorCallback == null ? END_EXCHANGE : errorCallback;
if (callback == null) {
throw UndertowMessages.MESSAGES.argumentCannotBeNull("callback");
}
if (exchange.isRequestComplete()) {
callback.handle(exchange, "", true);
return;
}
String contentLengthString = exchange.getRequestHeaders().getFirst(Headers.CONTENT_LENGTH);
long contentLength;
if (contentLengthString != null) {
contentLength = Long.parseLong(contentLengthString);
if (contentLength > Integer.MAX_VALUE) {
error.error(exchange, new RequestToLargeException());
return;
}
} else {
contentLength = -1;
}
if (maxBufferSize > 0) {
if (contentLength > maxBufferSize) {
error.error(exchange, new RequestToLargeException());
return;
}
}
CharsetDecoder decoder = charset.newDecoder();
int s;
try (PooledByteBuffer pooled = exchange.getConnection().getByteBufferPool().getArrayBackedPool().allocate()) {
while ((s = inputStream.read(pooled.getBuffer().array(), pooled.getBuffer().arrayOffset(), pooled.getBuffer().remaining())) > 0) {
pooled.getBuffer().limit(s);
CharBuffer res = decoder.decode(pooled.getBuffer());
callback.handle(exchange, res.toString(), false);
pooled.getBuffer().clear();
}
callback.handle(exchange, "", true);
} catch (IOException e) {
error.error(exchange, e);
}
}
@Override
public void receivePartialString(PartialStringCallback callback, Charset charset) {
receivePartialString(callback, END_EXCHANGE, charset);
}
@Override
public void receiveFullBytes(final FullBytesCallback callback, final ErrorCallback errorCallback) {
if(done) {
throw UndertowMessages.MESSAGES.requestBodyAlreadyRead();
}
final ErrorCallback error = errorCallback == null ? END_EXCHANGE : errorCallback;
if (callback == null) {
throw UndertowMessages.MESSAGES.argumentCannotBeNull("callback");
}
if (exchange.isRequestComplete()) {
callback.handle(exchange, EMPTY_BYTE_ARRAY);
return;
}
String contentLengthString = exchange.getRequestHeaders().getFirst(Headers.CONTENT_LENGTH);
long contentLength;
final ByteArrayOutputStream sb;
if (contentLengthString != null) {
contentLength = Long.parseLong(contentLengthString);
if (contentLength > Integer.MAX_VALUE) {
error.error(exchange, new RequestToLargeException());
return;
}
sb = new ByteArrayOutputStream((int) contentLength);
} else {
contentLength = -1;
sb = new ByteArrayOutputStream();
}
if (maxBufferSize > 0) {
if (contentLength > maxBufferSize) {
error.error(exchange, new RequestToLargeException());
return;
}
}
int s;
try (PooledByteBuffer pooled = exchange.getConnection().getByteBufferPool().getArrayBackedPool().allocate()) {
while ((s = inputStream.read(pooled.getBuffer().array(), pooled.getBuffer().arrayOffset(), pooled.getBuffer().remaining())) > 0) {
sb.write(pooled.getBuffer().array(), pooled.getBuffer().arrayOffset(), s);
}
callback.handle(exchange, sb.toByteArray());
} catch (IOException e) {
error.error(exchange, e);
}
}
@Override
public void receiveFullBytes(FullBytesCallback callback) {
receiveFullBytes(callback, END_EXCHANGE);
}
@Override
public void receivePartialBytes(final PartialBytesCallback callback, final ErrorCallback errorCallback) {
if(done) {
throw UndertowMessages.MESSAGES.requestBodyAlreadyRead();
}
final ErrorCallback error = errorCallback == null ? END_EXCHANGE : errorCallback;
if (callback == null) {
throw UndertowMessages.MESSAGES.argumentCannotBeNull("callback");
}
if (exchange.isRequestComplete()) {
callback.handle(exchange, EMPTY_BYTE_ARRAY, true);
return;
}
String contentLengthString = exchange.getRequestHeaders().getFirst(Headers.CONTENT_LENGTH);
long contentLength;
if (contentLengthString != null) {
contentLength = Long.parseLong(contentLengthString);
if (contentLength > Integer.MAX_VALUE) {
error.error(exchange, new RequestToLargeException());
return;
}
} else {
contentLength = -1;
}
if (maxBufferSize > 0) {
if (contentLength > maxBufferSize) {
error.error(exchange, new RequestToLargeException());
return;
}
}
int s;
try (PooledByteBuffer pooled = exchange.getConnection().getByteBufferPool().getArrayBackedPool().allocate()) {
while ((s = inputStream.read(pooled.getBuffer().array(), pooled.getBuffer().arrayOffset(), pooled.getBuffer().remaining())) > 0) {
byte[] newData = new byte[s];
System.arraycopy(pooled.getBuffer().array(), pooled.getBuffer().arrayOffset(), newData, 0, s);
callback.handle(exchange, newData, false);
}
callback.handle(exchange, EMPTY_BYTE_ARRAY, true);
} catch (IOException e) {
error.error(exchange, e);
}
}
@Override
public void receivePartialBytes(PartialBytesCallback callback) {
receivePartialBytes(callback, END_EXCHANGE);
}
@Override
public void pause() {
//noop for blocking receiver
}
@Override
public void resume() {
//noop for blocking receiver
}
}