public void writeResponse(HttpVersion version, ByteBuf container) {
HttpResponse response = new DefaultHttpResponse(version, HttpResponseStatus.OK);
HttpHeaders.setContentLength(response, container.readableBytes());
channel.write(response);
channel.write(container);
channel.writeAndFlush(LastHttpContent.EMPTY_LAST_CONTENT);
}
private void sendHttpResponse(ChannelHandlerContext ctx, HttpRequest req, HttpResponse res) {
// Generate an error page if response status code is not OK (200).
if (res.getStatus().getCode() != 200) {
res.setContent(ChannelBuffers.copiedBuffer(res.getStatus().toString(), CharsetUtil.UTF_8));
setContentLength(res, res.getContent().readableBytes());
}
// Send the response and close the connection if necessary.
ChannelFuture f = ctx.getChannel().write(res);
if (!isKeepAlive(req) || res.getStatus().getCode() != 200) {
f.addListener(ChannelFutureListener.CLOSE);
}
}
private static void sendHttpResponse(
ChannelHandlerContext ctx, FullHttpRequest req, FullHttpResponse res) {
// Generate an error page if response getStatus code is not OK (200).
if (res.getStatus().code() != 200) {
ByteBuf buf = Unpooled.copiedBuffer(res.getStatus().toString(), CharsetUtil.UTF_8);
res.content().writeBytes(buf);
buf.release();
HttpHeaders.setContentLength(res, res.content().readableBytes());
}
// Send the response and close the connection if necessary.
ChannelFuture f = ctx.channel().writeAndFlush(res);
if (!HttpHeaders.isKeepAlive(req) || res.getStatus().code() != 200) {
f.addListener(ChannelFutureListener.CLOSE);
}
}
@Override
public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
FullHttpResponse res;
FullHttpRequest req = (FullHttpRequest) msg;
String url = req.getUri();
if ("/".equals(req.getUri())) {
url = "/index.html";
}
Path path = Paths.get(root + url);
if (Files.isReadable(path)) {
ByteBuf content = Unpooled.copiedBuffer(Files.readAllBytes(path));
res = new DefaultFullHttpResponse(HTTP_1_1, OK, content);
if (url.endsWith(".html")) res.headers().set(CONTENT_TYPE, "text/html; charset=UTF-8");
HttpHeaders.setContentLength(res, content.readableBytes());
} else {
res = new DefaultFullHttpResponse(HTTP_1_1, NOT_FOUND);
}
sendHttpResponse(ctx, req, res);
}
@Override
protected void doOnTerminate(
ChannelHandlerContext ctx, ChannelFuture last, final ChannelPromise promise) {
if (request.method() == Method.WS) {
return;
}
ByteBuffer byteBuffer = body.flip().byteBuffer();
if (request.checkHeader()) {
HttpRequest req =
new DefaultFullHttpRequest(
request.getNettyRequest().getProtocolVersion(),
request.getNettyRequest().getMethod(),
request.getNettyRequest().getUri(),
byteBuffer != null ? Unpooled.wrappedBuffer(byteBuffer) : Unpooled.EMPTY_BUFFER);
req.headers().add(request.headers().delegate());
if (byteBuffer != null) {
HttpHeaders.setContentLength(req, body.limit());
}
ctx.writeAndFlush(req)
.addListener(
new ChannelFutureListener() {
@Override
public void operationComplete(ChannelFuture future) throws Exception {
if (future.isSuccess()) {
promise.trySuccess();
} else {
promise.tryFailure(future.cause());
}
}
});
} else {
ctx.write(
new DefaultHttpContent(
byteBuffer != null ? Unpooled.wrappedBuffer(byteBuffer) : Unpooled.EMPTY_BUFFER));
}
body.reset();
}
private void sendMessage(
HttpMessage msg, Channel channel, ByteBuf out, String type, ChannelPromise promise) {
HttpResponse res = new DefaultHttpResponse(HTTP_1_1, HttpResponseStatus.OK);
res.headers()
.add(CONTENT_TYPE, type)
.add("Set-Cookie", "io=" + msg.getSessionId())
.add(CONNECTION, KEEP_ALIVE);
addOriginHeaders(channel, res);
HttpHeaders.setContentLength(res, out.readableBytes());
// prevent XSS warnings on IE
// https://github.com/LearnBoost/socket.io/pull/1333
String userAgent = channel.attr(EncoderHandler.USER_AGENT).get();
if (userAgent != null && (userAgent.contains(";MSIE") || userAgent.contains("Trident/"))) {
res.headers().add("X-XSS-Protection", "0");
}
sendMessage(msg, channel, out, res, promise);
}
private void handleHttpRequest(ChannelHandlerContext ctx, FullHttpRequest req) {
// Handle a bad request.
if (!req.getDecoderResult().isSuccess()) {
sendHttpResponse(ctx, req, new DefaultFullHttpResponse(HTTP_1_1, BAD_REQUEST));
return;
}
// Allow only GET methods.
if (req.getMethod() != GET) {
sendHttpResponse(ctx, req, new DefaultFullHttpResponse(HTTP_1_1, FORBIDDEN));
return;
}
// Send the demo page and favicon.ico
if ("/".equals(req.getUri())) {
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;
}
// Handshake
WebSocketServerHandshakerFactory wsFactory =
new WebSocketServerHandshakerFactory(getWebSocketLocation(req), null, true);
handshaker = wsFactory.newHandshaker(req);
if (handshaker == null) {
WebSocketServerHandshakerFactory.sendUnsupportedVersionResponse(ctx.channel());
} else {
handshaker.handshake(ctx.channel(), req);
}
}
private void processHead(ChannelHandlerContext context, FullHttpRequest request) {
HttpHeaders headers = request.headers();
FullHttpResponse response = null;
if (headers.contains(Names.CONTENT_LENGTH)) {
try {
File file = getRequestedFile(request.getUri());
response =
new DefaultFullHttpResponse(
HTTP_1_1, request.getDecoderResult().isSuccess() ? OK : BAD_REQUEST);
HttpHeaders.setContentLength(response, file.length());
} catch (FileNotFoundException | URISyntaxException e) {
response = getBadRequest(e.getMessage());
}
}
context.writeAndFlush(response);
}
private void processGet(ChannelHandlerContext context, FullHttpRequest request) {
try {
File file = getRequestedFile(request.getUri());
RandomAccessFile raf = new RandomAccessFile(file, "r");
long fileLength = raf.length();
HttpResponse response = new DefaultHttpResponse(HTTP_1_1, OK);
HttpHeaders.setContentLength(response, fileLength);
setContentTypeHeader(response, file);
context.write(response);
context.write(new DefaultFileRegion(raf.getChannel(), 0, fileLength));
// Write the end marker.
ChannelFuture future = context.writeAndFlush(LastHttpContent.EMPTY_LAST_CONTENT);
future.addListener(ChannelFutureListener.CLOSE);
} catch (IOException | URISyntaxException e) {
context.writeAndFlush(getBadRequest(e.getMessage()));
}
}
@Override
protected void encode(ChannelHandlerContext ctx, HttpXmlRequest msg, List<Object> out)
throws Exception {
ByteBuf body = encode0(ctx, msg.getBody());
FullHttpRequest request = msg.getRequest();
if (request == null) {
request = new DefaultFullHttpRequest(HttpVersion.HTTP_1_1, HttpMethod.GET, "/do", body);
HttpHeaders headers = request.headers();
headers.set(HttpHeaders.Names.HOST, InetAddress.getLocalHost().getHostAddress());
headers.set(HttpHeaders.Names.CONNECTION, HttpHeaders.Values.CLOSE);
headers.set(
HttpHeaders.Names.ACCEPT_ENCODING,
HttpHeaders.Values.GZIP.toString() + ',' + HttpHeaders.Values.DEFLATE.toString());
headers.set(HttpHeaders.Names.ACCEPT_CHARSET, "ISO-8859-1,utf-8;q=0.7,*;q=0.7");
headers.set(HttpHeaders.Names.ACCEPT_LANGUAGE, "zh");
headers.set(HttpHeaders.Names.USER_AGENT, "Netty xml Http Client side");
headers.set(
HttpHeaders.Names.ACCEPT,
"text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8");
}
HttpHeaders.setContentLength(request, body.readableBytes());
out.add(request);
}
/**
* Provided a cause, returns an error response with the right status and error message.
*
* @param cause the cause of the error.
* @return a {@link FullHttpResponse} with the error message that can be sent to the client.
*/
private FullHttpResponse getErrorResponse(Throwable cause) {
HttpResponseStatus status;
StringBuilder errReason = new StringBuilder();
if (cause instanceof RestServiceException) {
RestServiceErrorCode restServiceErrorCode = ((RestServiceException) cause).getErrorCode();
status = getHttpResponseStatus(ResponseStatus.getResponseStatus(restServiceErrorCode));
if (status == HttpResponseStatus.BAD_REQUEST) {
errReason.append(" [").append(Utils.getRootCause(cause).getMessage()).append("]");
}
} else {
nettyMetrics.internalServerErrorCount.inc();
status = HttpResponseStatus.INTERNAL_SERVER_ERROR;
}
String fullMsg = "Failure: " + status + errReason;
logger.trace("Constructed error response for the client - [{}]", fullMsg);
FullHttpResponse response;
if (request != null && !request.getRestMethod().equals(RestMethod.HEAD)) {
response =
new DefaultFullHttpResponse(
HttpVersion.HTTP_1_1, status, Unpooled.wrappedBuffer(fullMsg.getBytes()));
} else {
// for HEAD, we cannot send the actual body but we need to return what the length would have
// been if this was GET.
// https://www.w3.org/Protocols/rfc2616/rfc2616-sec9.html (Section 9.4)
response = new DefaultFullHttpResponse(HttpVersion.HTTP_1_1, status);
}
HttpHeaders.setDate(response, new GregorianCalendar().getTime());
HttpHeaders.setContentLength(response, fullMsg.length());
HttpHeaders.setHeader(response, HttpHeaders.Names.CONTENT_TYPE, "text/plain; charset=UTF-8");
boolean keepAlive =
request != null
&& !request.getRestMethod().equals(RestMethod.POST)
&& !CLOSE_CONNECTION_ERROR_STATUSES.contains(status);
HttpHeaders.setKeepAlive(response, keepAlive);
return response;
}
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
protected void decode(
ChannelHandlerContext ctx, SpdyDataOrControlFrame msg, MessageBuf<Object> out)
throws Exception {
if (msg instanceof SpdySynStreamFrame) {
// HTTP requests/responses are mapped one-to-one to SPDY streams.
SpdySynStreamFrame spdySynStreamFrame = (SpdySynStreamFrame) msg;
int streamId = spdySynStreamFrame.getStreamId();
if (SpdyCodecUtil.isServerId(streamId)) {
// SYN_STREAM frames initiated by the server are pushed resources
int associatedToStreamId = spdySynStreamFrame.getAssociatedToStreamId();
// If a client receives a SYN_STREAM with an Associated-To-Stream-ID of 0
// it must reply with a RST_STREAM with error code INVALID_STREAM
if (associatedToStreamId == 0) {
SpdyRstStreamFrame spdyRstStreamFrame =
new DefaultSpdyRstStreamFrame(streamId, SpdyStreamStatus.INVALID_STREAM);
ctx.write(spdyRstStreamFrame);
}
String URL = SpdyHeaders.getUrl(spdyVersion, spdySynStreamFrame);
// If a client receives a SYN_STREAM without a 'url' header
// it must reply with a RST_STREAM with error code PROTOCOL_ERROR
if (URL == null) {
SpdyRstStreamFrame spdyRstStreamFrame =
new DefaultSpdyRstStreamFrame(streamId, SpdyStreamStatus.PROTOCOL_ERROR);
ctx.write(spdyRstStreamFrame);
}
try {
FullHttpResponse httpResponseWithEntity =
createHttpResponse(spdyVersion, spdySynStreamFrame);
// Set the Stream-ID, Associated-To-Stream-ID, Priority, and URL as headers
SpdyHttpHeaders.setStreamId(httpResponseWithEntity, streamId);
SpdyHttpHeaders.setAssociatedToStreamId(httpResponseWithEntity, associatedToStreamId);
SpdyHttpHeaders.setPriority(httpResponseWithEntity, spdySynStreamFrame.getPriority());
SpdyHttpHeaders.setUrl(httpResponseWithEntity, URL);
if (spdySynStreamFrame.isLast()) {
HttpHeaders.setContentLength(httpResponseWithEntity, 0);
out.add(httpResponseWithEntity);
} else {
// Response body will follow in a series of Data Frames
putMessage(streamId, httpResponseWithEntity);
}
} catch (Exception e) {
SpdyRstStreamFrame spdyRstStreamFrame =
new DefaultSpdyRstStreamFrame(streamId, SpdyStreamStatus.PROTOCOL_ERROR);
ctx.write(spdyRstStreamFrame);
}
} else {
// SYN_STREAM frames initiated by the client are HTTP requests
try {
FullHttpRequest httpRequestWithEntity =
createHttpRequest(spdyVersion, spdySynStreamFrame);
// Set the Stream-ID as a header
SpdyHttpHeaders.setStreamId(httpRequestWithEntity, streamId);
if (spdySynStreamFrame.isLast()) {
out.add(httpRequestWithEntity);
} else {
// Request body will follow in a series of Data Frames
putMessage(streamId, httpRequestWithEntity);
}
} catch (Exception e) {
// If a client sends a SYN_STREAM without all of the getMethod, url (host and path),
// scheme, and version headers the server must reply with a HTTP 400 BAD REQUEST reply.
// Also sends HTTP 400 BAD REQUEST reply if header name/value pairs are invalid
SpdySynReplyFrame spdySynReplyFrame = new DefaultSpdySynReplyFrame(streamId);
spdySynReplyFrame.setLast(true);
SpdyHeaders.setStatus(spdyVersion, spdySynReplyFrame, HttpResponseStatus.BAD_REQUEST);
SpdyHeaders.setVersion(spdyVersion, spdySynReplyFrame, HttpVersion.HTTP_1_0);
ctx.write(spdySynReplyFrame);
}
}
} else if (msg instanceof SpdySynReplyFrame) {
SpdySynReplyFrame spdySynReplyFrame = (SpdySynReplyFrame) msg;
int streamId = spdySynReplyFrame.getStreamId();
try {
FullHttpResponse httpResponseWithEntity =
createHttpResponse(spdyVersion, spdySynReplyFrame);
// Set the Stream-ID as a header
SpdyHttpHeaders.setStreamId(httpResponseWithEntity, streamId);
if (spdySynReplyFrame.isLast()) {
HttpHeaders.setContentLength(httpResponseWithEntity, 0);
out.add(httpResponseWithEntity);
} else {
// Response body will follow in a series of Data Frames
putMessage(streamId, httpResponseWithEntity);
}
} catch (Exception e) {
// If a client receives a SYN_REPLY without valid getStatus and version headers
// the client must reply with a RST_STREAM frame indicating a PROTOCOL_ERROR
SpdyRstStreamFrame spdyRstStreamFrame =
new DefaultSpdyRstStreamFrame(streamId, SpdyStreamStatus.PROTOCOL_ERROR);
ctx.write(spdyRstStreamFrame);
}
} else if (msg instanceof SpdyHeadersFrame) {
SpdyHeadersFrame spdyHeadersFrame = (SpdyHeadersFrame) msg;
int streamId = spdyHeadersFrame.getStreamId();
FullHttpMessage fullHttpMessage = getMessage(streamId);
// If message is not in map discard HEADERS frame.
if (fullHttpMessage == null) {
return;
}
for (Map.Entry<String, String> e : spdyHeadersFrame.headers().entries()) {
fullHttpMessage.headers().add(e.getKey(), e.getValue());
}
if (spdyHeadersFrame.isLast()) {
HttpHeaders.setContentLength(fullHttpMessage, fullHttpMessage.content().readableBytes());
removeMessage(streamId);
out.add(fullHttpMessage);
}
} else if (msg instanceof SpdyDataFrame) {
SpdyDataFrame spdyDataFrame = (SpdyDataFrame) msg;
int streamId = spdyDataFrame.getStreamId();
FullHttpMessage fullHttpMessage = getMessage(streamId);
// If message is not in map discard Data Frame.
if (fullHttpMessage == null) {
return;
}
ByteBuf content = fullHttpMessage.content();
if (content.readableBytes() > maxContentLength - spdyDataFrame.content().readableBytes()) {
removeMessage(streamId);
throw new TooLongFrameException(
"HTTP content length exceeded " + maxContentLength + " bytes.");
}
ByteBuf spdyDataFrameData = spdyDataFrame.content();
int spdyDataFrameDataLen = spdyDataFrameData.readableBytes();
content.writeBytes(spdyDataFrameData, spdyDataFrameData.readerIndex(), spdyDataFrameDataLen);
if (spdyDataFrame.isLast()) {
HttpHeaders.setContentLength(fullHttpMessage, content.readableBytes());
removeMessage(streamId);
out.add(fullHttpMessage);
}
} else if (msg instanceof SpdyRstStreamFrame) {
SpdyRstStreamFrame spdyRstStreamFrame = (SpdyRstStreamFrame) msg;
int streamId = spdyRstStreamFrame.getStreamId();
removeMessage(streamId);
}
}
@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
public void setContentLengthLong(long len) {
HttpHeaders.setContentLength(response, len);
}
@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);
}
}
@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);
}
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);
}
}