/**
* Create an instance of NettyResponseChannel that will use {@code ctx} to return responses.
*
* @param ctx the {@link ChannelHandlerContext} to use.
* @param nettyMetrics the {@link NettyMetrics} instance to use.
*/
public NettyResponseChannel(ChannelHandlerContext ctx, NettyMetrics nettyMetrics) {
this.ctx = ctx;
this.nettyMetrics = nettyMetrics;
chunkedWriteHandler = ctx.pipeline().get(ChunkedWriteHandler.class);
writeFuture = ctx.newProgressivePromise();
logger.trace("Instantiated NettyResponseChannel");
}
private void handleHttpRequest(ChannelHandlerContext ctx, FullHttpRequest request) {
// Handle a bad request.
if (!request.getDecoderResult().isSuccess()) {
sendHttpResponse(
ctx, request, new DefaultFullHttpResponse(HTTP_1_1, HttpResponseStatus.BAD_REQUEST));
return;
}
if (RouterHits.checkIfMappingExit(request)) {
// Do Router Mapping First
RouterHits.execute(ctx, request);
return;
}
if ("/websocket".equals(request.getUri())) {
// Handshake
WebSocketServerHandshakerFactory wsFactory =
new WebSocketServerHandshakerFactory(getWebSocketLocation(request), null, true);
handshaker = wsFactory.newHandshaker(request);
if (handshaker == null) {
WebSocketServerHandshakerFactory.sendUnsupportedVersionResponse(ctx.channel());
} else {
handshaker.handshake(ctx.channel(), request);
channels.add(ctx.channel());
}
return;
}
final String uri = request.getUri();
// System.out.println("uri: " + uri);
final String path = sanitizeUri("www", uri);
// System.out.println("path: " + path);
if (path == null) {
sendHttpResponse(
ctx, request, new DefaultFullHttpResponse(HTTP_1_1, HttpResponseStatus.FORBIDDEN));
return;
}
File file = new File(path);
if (file.isHidden() || !file.exists()) {
sendHttpResponse(
ctx, request, new DefaultFullHttpResponse(HTTP_1_1, HttpResponseStatus.NOT_FOUND));
return;
}
if (file.isDirectory()) {
if (uri.endsWith("/")) {
File checkIndexFile = new File(file.getAbsolutePath() + File.separator + "index.html");
System.out.println(checkIndexFile.exists());
if (checkIndexFile.exists()) {
file = checkIndexFile;
} else {
sendListing(ctx, file);
return;
}
} else {
sendRedirect(ctx, uri + '/');
}
}
if (!file.isFile()) {
sendHttpResponse(
ctx, request, new DefaultFullHttpResponse(HTTP_1_1, HttpResponseStatus.FORBIDDEN));
return;
}
// Cache Validation
String ifModifiedSince = request.headers().get(IF_MODIFIED_SINCE);
if (ifModifiedSince != null && !ifModifiedSince.isEmpty()) {
SimpleDateFormat dateFormatter = new SimpleDateFormat(HTTP_DATE_FORMAT, Locale.US);
Date ifModifiedSinceDate = null;
try {
ifModifiedSinceDate = dateFormatter.parse(ifModifiedSince);
} catch (ParseException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
// Only compare up to the second because the datetime format we send to the client
// does not have milliseconds
long ifModifiedSinceDateSeconds = ifModifiedSinceDate.getTime() / 1000;
long fileLastModifiedSeconds = file.lastModified() / 1000;
if (ifModifiedSinceDateSeconds == fileLastModifiedSeconds) {
sendNotModified(ctx);
return;
}
}
RandomAccessFile raf;
try {
raf = new RandomAccessFile(file, "r");
} catch (FileNotFoundException ignore) {
sendHttpResponse(
ctx, request, new DefaultFullHttpResponse(HTTP_1_1, HttpResponseStatus.NOT_FOUND));
return;
}
long fileLength = 0;
try {
fileLength = raf.length();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
HttpResponse response = new DefaultHttpResponse(HTTP_1_1, OK);
HttpHeaders.setContentLength(response, fileLength);
setContentTypeHeader(response, file);
setDateAndCacheHeaders(response, file);
if (HttpHeaders.isKeepAlive(request)) {
response.headers().set(CONNECTION, HttpHeaders.Values.KEEP_ALIVE);
}
// Write the initial line and the header.
ctx.write(response);
// Write the content.
ChannelFuture sendFileFuture = null;
ChannelFuture lastContentFuture;
if (ctx.pipeline().get(SslHandler.class) == null) {
sendFileFuture =
ctx.write(
new DefaultFileRegion(raf.getChannel(), 0, fileLength), ctx.newProgressivePromise());
// Write the end marker.
lastContentFuture = ctx.writeAndFlush(LastHttpContent.EMPTY_LAST_CONTENT);
} else {
try {
sendFileFuture =
ctx.writeAndFlush(
new HttpChunkedInput(new ChunkedFile(raf, 0, fileLength, 8192)),
ctx.newProgressivePromise());
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
// HttpChunkedInput will write the end marker (LastHttpContent) for us.
lastContentFuture = sendFileFuture;
}
sendFileFuture.addListener(
new ChannelProgressiveFutureListener() {
@Override
public void operationProgressed(
ChannelProgressiveFuture future, long progress, long total) {
if (total < 0) { // total unknown
System.err.println(future.channel() + " Transfer progress: " + progress);
} else {
System.err.println(
future.channel() + " Transfer progress: " + progress + " / " + total);
}
}
@Override
public void operationComplete(ChannelProgressiveFuture future) {
System.err.println(future.channel() + " Transfer complete.");
}
});
// Decide whether to close the connection or not.
if (!HttpHeaders.isKeepAlive(request)) {
// Close the connection when the whole content is written out.
lastContentFuture.addListener(ChannelFutureListener.CLOSE);
}
// // Send the demo page and favicon.ico
// if ("/".equals(req.getUri()) && req.getMethod() == GET) {
// ByteBuf content = WebSocketServerIndexPage.getContent(getWebSocketLocation(req));
// FullHttpResponse res = new DefaultFullHttpResponse(HTTP_1_1, OK, content);
//
// res.headers().set(CONTENT_TYPE, "text/html; charset=UTF-8");
// HttpHeaders.setContentLength(res, content.readableBytes());
//
// sendHttpResponse(ctx, req, res);
// return;
// }
//
// if ("/favicon.ico".equals(req.getUri())) {
// FullHttpResponse res = new DefaultFullHttpResponse(HTTP_1_1, NOT_FOUND);
// sendHttpResponse(ctx, req, res);
// return;
// }
sendHttpResponse(
ctx, request, new DefaultFullHttpResponse(HTTP_1_1, HttpResponseStatus.FORBIDDEN));
return;
}
@Override
public void channelRead0(ChannelHandlerContext ctx, FullHttpRequest request) throws Exception {
if (!request.getDecoderResult().isSuccess()) {
sendError(ctx, BAD_REQUEST);
return;
}
if (request.getMethod() != GET) {
sendError(ctx, METHOD_NOT_ALLOWED);
return;
}
final String uri = request.getUri();
final String path = sanitizeUri(uri);
if (path == null) {
sendError(ctx, FORBIDDEN);
return;
}
// Cache Validation
String ifModifiedSince = request.headers().get(IF_MODIFIED_SINCE);
if (ifModifiedSince != null && !ifModifiedSince.isEmpty()) {
SimpleDateFormat dateFormatter = new SimpleDateFormat(HTTP_DATE_FORMAT, Locale.US);
Date ifModifiedSinceDate = dateFormatter.parse(ifModifiedSince);
// Only compare up to the second because the datetime format we send to the client
// does not have milliseconds
long ifModifiedSinceDateSeconds = ifModifiedSinceDate.getTime() / 1000;
// we use the start time of the JVM as last modified date
long lastModifiedSeconds = ManagementFactory.getRuntimeMXBean().getStartTime();
if (ifModifiedSinceDateSeconds == lastModifiedSeconds) {
sendNotModified(ctx);
return;
}
}
ClassLoader classLoader = HttpClasspathServerHandler.class.getClassLoader();
InputStream stream = classLoader.getResourceAsStream(path);
if (stream == null) {
sendError(ctx, NOT_FOUND);
return;
}
HttpResponse response = new DefaultHttpResponse(HTTP_1_1, OK);
HttpHeaders.setContentLength(response, stream.available());
setContentTypeHeader(response, path);
setDateAndCacheHeaders(response);
if (HttpHeaders.isKeepAlive(request)) {
response.headers().set(CONNECTION, HttpHeaders.Values.KEEP_ALIVE);
}
// Write the initial line and the header.
ctx.write(response);
// Write the content.
ChannelFuture sendFileFuture =
ctx.write(new ChunkedStream(stream), ctx.newProgressivePromise());
// Write the end marker.
ChannelFuture lastContentFuture = ctx.writeAndFlush(LastHttpContent.EMPTY_LAST_CONTENT);
// Decide whether to close the connection or not.
if (!HttpHeaders.isKeepAlive(request)) {
// Close the connection when the whole content is written out.
lastContentFuture.addListener(ChannelFutureListener.CLOSE);
}
}
@Override
protected void channelRead0(ChannelHandlerContext ctx, FullHttpRequest request) throws Exception {
// TODO Auto-generated method stub
if (!request.getDecoderResult().isSuccess()) {
sendError(ctx, BAD_REQUEST);
return;
}
if (request.getMethod() != GET) {
sendError(ctx, METHOD_NOT_ALLOWED);
return;
}
final String uri = request.getUri();
final String path = sanitizeUri(uri);
if (path == null) {
sendError(ctx, FORBIDDEN);
return;
}
File file = new File(path);
if (file.isHidden() || !file.exists()) {
sendError(ctx, NOT_FOUND);
return;
}
if (file.isDirectory()) {
if (uri.endsWith("/")) {
sendListing(ctx, file);
} else {
sendRedirect(ctx, uri + '/');
}
return;
}
if (!file.isFile()) {
sendError(ctx, FORBIDDEN);
return;
}
RandomAccessFile randomAccessFile = null;
try {
randomAccessFile = new RandomAccessFile(file, "r"); // 以只读的方式打开文件
} catch (FileNotFoundException fnfe) {
sendError(ctx, NOT_FOUND);
return;
}
long fileLength = randomAccessFile.length();
HttpResponse response = new DefaultHttpResponse(HTTP_1_1, OK);
setContentLength(response, fileLength);
setContentTypeHeader(response, file);
if (isKeepAlive(request)) {
response.headers().set(CONNECTION, HttpHeaders.Values.KEEP_ALIVE);
}
ctx.write(response);
ChannelFuture sendFileFuture;
sendFileFuture =
ctx.write(
new ChunkedFile(randomAccessFile, 0, fileLength, 8192), ctx.newProgressivePromise());
sendFileFuture.addListener(
new ChannelProgressiveFutureListener() {
@Override
public void operationProgressed(
ChannelProgressiveFuture future, long progress, long total) {
if (total < 0) { // total unknown
System.err.println("Transfer progress: " + progress);
} else {
System.err.println("Transfer progress: " + progress + " / " + total);
}
}
@Override
public void operationComplete(ChannelProgressiveFuture future) throws Exception {
System.out.println("Transfer complete.");
}
});
ChannelFuture lastContentFuture = ctx.writeAndFlush(LastHttpContent.EMPTY_LAST_CONTENT);
if (!isKeepAlive(request)) {
lastContentFuture.addListener(ChannelFutureListener.CLOSE);
}
}
void handleStaticFileRequest(ChannelHandlerContext ctx, HttpRequest req, String path)
throws Exception {
log.debug("handling static file request for {}", path);
path = sanitizePath(path);
if (path == null) {
sendError(ctx, FORBIDDEN);
return;
}
File file = new File(path);
if (file.isHidden() || !file.exists()) {
log.warn("{} does not exist or is hidden", file.toString());
sendError(ctx, NOT_FOUND);
return;
}
if (!file.isFile()) {
sendError(ctx, FORBIDDEN);
return;
}
// Cache Validation
String ifModifiedSince = req.headers().get(HttpHeaders.Names.IF_MODIFIED_SINCE);
if (ifModifiedSince != null && !ifModifiedSince.equals("")) {
SimpleDateFormat dateFormatter = new SimpleDateFormat(HTTP_DATE_FORMAT);
Date ifModifiedSinceDate = dateFormatter.parse(ifModifiedSince);
// Only compare up to the second because the datetime format we send to the client does not
// have milliseconds
long ifModifiedSinceDateSeconds = ifModifiedSinceDate.getTime() / 1000;
long fileLastModifiedSeconds = file.lastModified() / 1000;
if (ifModifiedSinceDateSeconds == fileLastModifiedSeconds) {
sendNotModified(ctx);
return;
}
}
RandomAccessFile raf;
try {
raf = new RandomAccessFile(file, "r");
} catch (FileNotFoundException ignore) {
sendError(ctx, NOT_FOUND);
return;
}
long fileLength = raf.length();
HttpResponse response = new DefaultHttpResponse(HTTP_1_1, OK);
HttpHeaders.setContentLength(response, fileLength);
setContentTypeHeader(response, file);
setDateAndCacheHeaders(response, file);
if (HttpHeaders.isKeepAlive(req)) {
response.headers().set(Names.CONNECTION, HttpHeaders.Values.KEEP_ALIVE);
}
// Write the initial line and the header.
ctx.write(response);
// Write the content.
ChannelFuture sendFileFuture;
ChannelFuture lastContentFuture;
if (ctx.pipeline().get(SslHandler.class) == null) {
sendFileFuture =
ctx.write(
new DefaultFileRegion(raf.getChannel(), 0, fileLength), ctx.newProgressivePromise());
// Write the end marker.
lastContentFuture = ctx.writeAndFlush(LastHttpContent.EMPTY_LAST_CONTENT);
} else {
sendFileFuture =
ctx.writeAndFlush(new ChunkedFile(raf, 0, fileLength, 8192), ctx.newProgressivePromise());
// HttpChunkedInput will write the end marker (LastHttpContent) for us.
lastContentFuture = sendFileFuture;
}
sendFileFuture.addListener(
new ChannelProgressiveFutureListener() {
@Override
public void operationProgressed(
ChannelProgressiveFuture future, long progress, long total) {
if (total < 0) { // total unknown
System.err.println(future.channel() + " Transfer progress: " + progress);
} else {
System.err.println(
future.channel() + " Transfer progress: " + progress + " / " + total);
}
}
@Override
public void operationComplete(ChannelProgressiveFuture future) {
System.err.println(future.channel() + " Transfer complete.");
}
});
// Decide whether to close the connection or not.
if (!HttpHeaders.isKeepAlive(req)) {
// Close the connection when the whole content is written out.
lastContentFuture.addListener(ChannelFutureListener.CLOSE);
}
}
protected void sendFile(
final ChannelHandlerContext channelHandlerContext,
FullHttpRequest fullHttpRequest,
SyncFile syncFile)
throws Exception {
Path path = Paths.get(syncFile.getFilePathName());
if (Files.notExists(path)) {
_syncTrafficShapingHandler.decrementConnectionsCount();
if (_logger.isTraceEnabled()) {
Channel channel = channelHandlerContext.channel();
_logger.trace("Client {}: file not found {}", channel.remoteAddress(), path);
}
_sendError(channelHandlerContext, NOT_FOUND);
return;
}
if (_logger.isDebugEnabled()) {
Channel channel = channelHandlerContext.channel();
_logger.debug("Client {}: sending file {}", channel.remoteAddress(), path);
}
long modifiedTime = syncFile.getModifiedTime();
long previousModifiedTime = syncFile.getPreviousModifiedTime();
if (OSDetector.isApple()) {
modifiedTime = modifiedTime / 1000 * 1000;
previousModifiedTime = previousModifiedTime / 1000 * 1000;
}
FileTime currentFileTime = Files.getLastModifiedTime(path, LinkOption.NOFOLLOW_LINKS);
long currentTime = currentFileTime.toMillis();
if ((currentTime != modifiedTime) && (currentTime != previousModifiedTime)) {
_syncTrafficShapingHandler.decrementConnectionsCount();
Channel channel = channelHandlerContext.channel();
_logger.error(
"Client {}: file modified {}, currentTime {}, modifiedTime "
+ "{}, previousModifiedTime {}",
channel.remoteAddress(),
path,
currentTime,
modifiedTime,
previousModifiedTime);
_sendError(channelHandlerContext, NOT_FOUND);
return;
}
HttpResponse httpResponse = new DefaultHttpResponse(HTTP_1_1, OK);
long size = Files.size(path);
HttpUtil.setContentLength(httpResponse, size);
HttpHeaders httpHeaders = httpResponse.headers();
MimetypesFileTypeMap mimetypesFileTypeMap = new MimetypesFileTypeMap();
httpHeaders.set(
HttpHeaderNames.CONTENT_TYPE, mimetypesFileTypeMap.getContentType(syncFile.getName()));
if (HttpUtil.isKeepAlive(fullHttpRequest)) {
httpHeaders.set(HttpHeaderNames.CONNECTION, HttpHeaderValues.KEEP_ALIVE);
}
channelHandlerContext.write(httpResponse);
SyncChunkedFile syncChunkedFile = new SyncChunkedFile(path, size, 4 * 1024 * 1024, currentTime);
ChannelFuture channelFuture =
channelHandlerContext.writeAndFlush(
new HttpChunkedInput(syncChunkedFile), channelHandlerContext.newProgressivePromise());
channelFuture.addListener(
new ChannelFutureListener() {
@Override
public void operationComplete(ChannelFuture channelFuture) throws Exception {
_syncTrafficShapingHandler.decrementConnectionsCount();
if (channelFuture.isSuccess()) {
return;
}
Throwable exception = channelFuture.cause();
Channel channel = channelHandlerContext.channel();
_logger.error(
"Client {}: {}", channel.remoteAddress(), exception.getMessage(), exception);
channelHandlerContext.close();
}
});
if (!HttpUtil.isKeepAlive(fullHttpRequest)) {
channelFuture.addListener(ChannelFutureListener.CLOSE);
}
}
@Override
public void channelRead0(ChannelHandlerContext ctx, FullHttpRequest request) throws Exception {
if (!request.getDecoderResult().isSuccess()) {
sendError(ctx, BAD_REQUEST, request);
return;
}
if (request.getMethod() != GET) {
sendError(ctx, METHOD_NOT_ALLOWED, request);
return;
}
File file = null;
RandomAccessFile raf = null;
boolean found = true;
for (String p : paths) {
String path = p + sanitizeUri(request.getUri());
if (path == null) {
path = "/index.html";
}
if (path.endsWith("/") || path.endsWith(File.separator)) {
path += "index.html";
}
if (path.endsWith("/favicon.ico") || path.endsWith(File.separator)) {
request.headers().add(SERVICED, "true");
found = false;
continue;
}
file = new File(path);
if (file.isHidden() || !file.exists()) {
found = false;
continue;
}
// if (file.isDirectory()) {
// if (uri.endsWith("/")) {
// sendListing(ctx, file);
// } else {
// sendRedirect(ctx, uri + '/');
// }
// return;
// }
if (!file.isFile()) {
found = false;
continue;
}
try {
raf = new RandomAccessFile(file, "r");
found = true;
break;
} catch (FileNotFoundException ignore) {
sendError(ctx, NOT_FOUND, request);
return;
}
}
if (!found) {
sendError(ctx, NOT_FOUND, request);
return;
}
request.headers().add(SERVICED, "true");
// Cache Validation
String ifModifiedSince = request.headers().get(IF_MODIFIED_SINCE);
if (ifModifiedSince != null && !ifModifiedSince.isEmpty()) {
SimpleDateFormat dateFormatter = new SimpleDateFormat(HTTP_DATE_FORMAT, Locale.US);
Date ifModifiedSinceDate = dateFormatter.parse(ifModifiedSince);
// Only compare up to the second because the datetime format we send to the client
// does not have milliseconds
long ifModifiedSinceDateSeconds = ifModifiedSinceDate.getTime() / 1000;
long fileLastModifiedSeconds = file.lastModified() / 1000;
if (ifModifiedSinceDateSeconds == fileLastModifiedSeconds) {
sendNotModified(ctx);
return;
}
}
long fileLength = raf.length();
ctx.pipeline().addBefore(BridgeRuntime.class.getName(), "encoder", new HttpResponseEncoder());
HttpResponse response = new DefaultHttpResponse(HTTP_1_1, OK);
HttpHeaders.setContentLength(response, fileLength);
contentType(request, response, file);
setDateAndCacheHeaders(response, file);
// if (HttpHeaders.isKeepAlive(request)) {
// response.headers().set(CONNECTION, HttpHeaders.Values.KEEP_ALIVE);
// }
// Write the initial line and the header.
ctx.write(response);
// Write the content.
ChannelFuture sendFileFuture;
ChannelFuture lastContentFuture;
if (ctx.pipeline().get(SslHandler.class) == null) {
sendFileFuture =
ctx.write(
new DefaultFileRegion(raf.getChannel(), 0, fileLength), ctx.newProgressivePromise());
// Write the end marker.
lastContentFuture = ctx.writeAndFlush(LastHttpContent.EMPTY_LAST_CONTENT);
} else {
sendFileFuture =
ctx.writeAndFlush(
new HttpChunkedInput(new ChunkedFile(raf, 0, fileLength, 8192)),
ctx.newProgressivePromise());
// HttpChunkedInput will write the end marker (LastHttpContent) for us.
lastContentFuture = sendFileFuture;
}
sendFileFuture.addListener(
new ChannelProgressiveFutureListener() {
@Override
public void operationProgressed(
ChannelProgressiveFuture future, long progress, long total) {
if (total < 0) { // total unknown
logger.trace(future.channel() + " Transfer progress: " + progress);
} else {
logger.trace(future.channel() + " Transfer progress: " + progress + " / " + total);
}
}
@Override
public void operationComplete(ChannelProgressiveFuture future) {
logger.trace(future.channel() + " Transfer complete.");
}
});
// Close the connection when the whole content is written out.
lastContentFuture.addListener(ChannelFutureListener.CLOSE);
}