public static void serve404(
NotFound e, ChannelHandlerContext ctx, Request request, HttpRequest nettyRequest) {
Logger.trace("serve404: begin");
HttpResponse nettyResponse =
new DefaultHttpResponse(HttpVersion.HTTP_1_1, HttpResponseStatus.NOT_FOUND);
nettyResponse.setHeader(SERVER, signature);
nettyResponse.setHeader(CONTENT_TYPE, "text/html");
Map<String, Object> binding = getBindingForErrors(e, false);
String format = Request.current().format;
if (format == null) {
format = "txt";
}
nettyResponse.setHeader(
CONTENT_TYPE, (MimeTypes.getContentType("404." + format, "text/plain")));
String errorHtml = TemplateLoader.load("errors/404." + format).render(binding);
try {
ChannelBuffer buf = ChannelBuffers.copiedBuffer(errorHtml.getBytes("utf-8"));
nettyResponse.setContent(buf);
ChannelFuture writeFuture = ctx.getChannel().write(nettyResponse);
writeFuture.addListener(ChannelFutureListener.CLOSE);
} catch (UnsupportedEncodingException fex) {
Logger.error(fex, "(utf-8 ?)");
}
Logger.trace("serve404: end");
}
protected static void writeResponse(
ChannelHandlerContext ctx,
Response response,
HttpResponse nettyResponse,
HttpRequest nettyRequest) {
Logger.trace("writeResponse: begin");
byte[] content = null;
final boolean keepAlive = isKeepAlive(nettyRequest);
if (nettyRequest.getMethod().equals(HttpMethod.HEAD)) {
content = new byte[0];
} else {
content = response.out.toByteArray();
}
ChannelBuffer buf = ChannelBuffers.copiedBuffer(content);
nettyResponse.setContent(buf);
if (keepAlive) {
// Add 'Content-Length' header only for a keep-alive connection.
Logger.trace("writeResponse: content length [" + response.out.size() + "]");
setContentLength(nettyResponse, response.out.size());
}
ChannelFuture f = ctx.getChannel().write(nettyResponse);
// Decide whether to close the connection or not.
if (!keepAlive) {
// Close the connection when the whole content is written out.
f.addListener(ChannelFutureListener.CLOSE);
}
Logger.trace("writeResponse: end");
}
private void sendError(ChannelHandlerContext ctx, String message, HttpResponseStatus status) {
HttpResponse response = new DefaultHttpResponse(HTTP_1_1, status);
response.setHeader(CONTENT_TYPE, "text/plain; charset=UTF-8");
response.setContent(ChannelBuffers.copiedBuffer(message, CharsetUtil.UTF_8));
// Close the connection as soon as the error message is sent.
ctx.getChannel().write(response).addListener(ChannelFutureListener.CLOSE);
}
private void sendError(ChannelHandlerContext ctx, HttpResponseStatus status) {
HttpResponse response = new DefaultHttpResponse(HttpVersion.HTTP_1_1, status);
response.setHeader(HttpHeaders.Names.CONTENT_TYPE, "text/plain; charset=UTF-8");
response.setContent(
ChannelBuffers.copiedBuffer(
"Failure: " + status.toString() + "\r\n", Charset.forName("UTF-8")));
// Close the connection as soon as the error message is sent.
ctx.getChannel().write(response).addListener(ChannelFutureListener.CLOSE);
}
@Override
public void messageReceived(ChannelHandlerContext context, MessageEvent e) throws Exception {
if (e.getMessage() instanceof HttpRequest) {
HttpRequest message = (HttpRequest) e.getMessage();
HttpResponse response;
if (new QueryStringDecoder(message.getUri()).getPath().equals(START_TIME_PATH)) {
response = new DefaultHttpResponse(HTTP_1_1, OK);
response.setHeader("Access-Control-Allow-Origin", "*");
response.setContent(
ChannelBuffers.copiedBuffer(getApplicationStartTime(), CharsetUtil.US_ASCII));
} else {
response = new DefaultHttpResponse(HTTP_1_1, NOT_FOUND);
}
context.getChannel().write(response).addListener(ChannelFutureListener.CLOSE);
}
}
public void serveStatic(
RenderStatic renderStatic,
ChannelHandlerContext ctx,
Request request,
Response response,
HttpRequest nettyRequest,
MessageEvent e) {
Logger.trace("serveStatic: begin");
HttpResponse nettyResponse =
new DefaultHttpResponse(HttpVersion.HTTP_1_1, HttpResponseStatus.valueOf(response.status));
if (exposePlayServer) {
nettyResponse.setHeader(SERVER, signature);
}
try {
VirtualFile file = Play.getVirtualFile(renderStatic.file);
if (file != null && file.exists() && file.isDirectory()) {
file = file.child("index.html");
if (file != null) {
renderStatic.file = file.relativePath();
}
}
if ((file == null || !file.exists())) {
serve404(
new NotFound("The file " + renderStatic.file + " does not exist"),
ctx,
request,
nettyRequest);
} else {
boolean raw = false;
for (PlayPlugin plugin : Play.plugins) {
if (plugin.serveStatic(file, Request.current(), Response.current())) {
raw = true;
break;
}
}
if (raw) {
copyResponse(ctx, request, response, nettyRequest);
} else {
final File localFile = file.getRealFile();
final boolean keepAlive = isKeepAlive(nettyRequest);
nettyResponse = addEtag(nettyRequest, nettyResponse, localFile);
if (nettyResponse.getStatus().equals(HttpResponseStatus.NOT_MODIFIED)) {
Channel ch = e.getChannel();
// Write the initial line and the header.
ChannelFuture writeFuture = ch.write(nettyResponse);
if (!keepAlive) {
// Write the content.
writeFuture.addListener(ChannelFutureListener.CLOSE);
}
} else {
final RandomAccessFile raf = new RandomAccessFile(localFile, "r");
try {
long fileLength = raf.length();
Logger.trace("keep alive " + keepAlive);
Logger.trace(
"content type " + (MimeTypes.getContentType(localFile.getName(), "text/plain")));
if (keepAlive && !nettyResponse.getStatus().equals(HttpResponseStatus.NOT_MODIFIED)) {
// Add 'Content-Length' header only for a keep-alive connection.
Logger.trace("file length " + fileLength);
setContentLength(nettyResponse, fileLength);
}
nettyResponse.setHeader(
CONTENT_TYPE, (MimeTypes.getContentType(localFile.getName(), "text/plain")));
Channel ch = e.getChannel();
// Write the initial line and the header.
ChannelFuture writeFuture = ch.write(nettyResponse);
// Write the content.
if (!nettyRequest.getMethod().equals(HttpMethod.HEAD)) {
writeFuture = ch.write(new ChunkedFile(raf, 0, fileLength, 8192));
} else {
raf.close();
}
if (!keepAlive) {
// Close the connection when the whole content is written out.
writeFuture.addListener(ChannelFutureListener.CLOSE);
}
} catch (Throwable exx) {
try {
raf.close();
} catch (Throwable ex) {
/* Left empty */
}
try {
ctx.getChannel().close();
} catch (Throwable ex) {
/* Left empty */
}
}
}
}
}
} catch (Throwable ez) {
Logger.error(ez, "serveStatic for request %s", request.method + " " + request.url);
try {
HttpResponse errorResponse =
new DefaultHttpResponse(HttpVersion.HTTP_1_1, HttpResponseStatus.INTERNAL_SERVER_ERROR);
ChannelBuffer buf =
ChannelBuffers.copiedBuffer("Internal Error (check logs)".getBytes("utf-8"));
errorResponse.setContent(buf);
ChannelFuture future = ctx.getChannel().write(errorResponse);
future.addListener(ChannelFutureListener.CLOSE);
} catch (Exception ex) {
Logger.error(ez, "serveStatic for request %s", request.method + " " + request.url);
}
}
Logger.trace("serveStatic: end");
}
// TODO: add request and response as parameter
public static void serve500(Exception e, ChannelHandlerContext ctx, HttpRequest nettyRequest) {
Logger.trace("serve500: begin");
HttpResponse nettyResponse =
new DefaultHttpResponse(HttpVersion.HTTP_1_1, HttpResponseStatus.INTERNAL_SERVER_ERROR);
if (exposePlayServer) {
nettyResponse.setHeader(SERVER, signature);
}
Request request = Request.current();
Response response = Response.current();
try {
if (!(e instanceof PlayException)) {
e = new play.exceptions.UnexpectedException(e);
}
// Flush some cookies
try {
Map<String, Http.Cookie> cookies = response.cookies;
for (Http.Cookie cookie : cookies.values()) {
CookieEncoder encoder = new CookieEncoder(true);
Cookie c = new DefaultCookie(cookie.name, cookie.value);
c.setSecure(cookie.secure);
c.setPath(cookie.path);
if (cookie.domain != null) {
c.setDomain(cookie.domain);
}
if (cookie.maxAge != null) {
c.setMaxAge(cookie.maxAge);
}
c.setHttpOnly(cookie.httpOnly);
encoder.addCookie(c);
nettyResponse.addHeader(SET_COOKIE, encoder.encode());
}
} catch (Exception exx) {
Logger.error(e, "Trying to flush cookies");
// humm ?
}
Map<String, Object> binding = getBindingForErrors(e, true);
String format = request.format;
if (format == null) {
format = "txt";
}
nettyResponse.setHeader(
"Content-Type", (MimeTypes.getContentType("500." + format, "text/plain")));
try {
String errorHtml = TemplateLoader.load("errors/500." + format).render(binding);
ChannelBuffer buf = ChannelBuffers.copiedBuffer(errorHtml.getBytes("utf-8"));
nettyResponse.setContent(buf);
ChannelFuture writeFuture = ctx.getChannel().write(nettyResponse);
writeFuture.addListener(ChannelFutureListener.CLOSE);
Logger.error(
e, "Internal Server Error (500) for request %s", request.method + " " + request.url);
} catch (Throwable ex) {
Logger.error(
e, "Internal Server Error (500) for request %s", request.method + " " + request.url);
Logger.error(ex, "Error during the 500 response generation");
try {
ChannelBuffer buf =
ChannelBuffers.copiedBuffer("Internal Error (check logs)".getBytes("utf-8"));
nettyResponse.setContent(buf);
ChannelFuture writeFuture = ctx.getChannel().write(nettyResponse);
writeFuture.addListener(ChannelFutureListener.CLOSE);
} catch (UnsupportedEncodingException fex) {
Logger.error(fex, "(utf-8 ?)");
}
}
} catch (Throwable exxx) {
try {
ChannelBuffer buf =
ChannelBuffers.copiedBuffer("Internal Error (check logs)".getBytes("utf-8"));
nettyResponse.setContent(buf);
ChannelFuture writeFuture = ctx.getChannel().write(nettyResponse);
writeFuture.addListener(ChannelFutureListener.CLOSE);
} catch (Exception fex) {
Logger.error(fex, "(utf-8 ?)");
}
if (exxx instanceof RuntimeException) {
throw (RuntimeException) exxx;
}
throw new RuntimeException(exxx);
}
Logger.trace("serve500: end");
}
private void websocketHandshake(final ChannelHandlerContext ctx, HttpRequest req, MessageEvent e)
throws Exception {
// Create the WebSocket handshake response.
HttpResponse res =
new DefaultHttpResponse(
HttpVersion.HTTP_1_1, new HttpResponseStatus(101, "Web Socket Protocol Handshake"));
res.addHeader(HttpHeaders.Names.UPGRADE, HttpHeaders.Values.WEBSOCKET);
res.addHeader(CONNECTION, HttpHeaders.Values.UPGRADE);
// Fill in the headers and contents depending on handshake method.
if (req.containsHeader(SEC_WEBSOCKET_KEY1) && req.containsHeader(SEC_WEBSOCKET_KEY2)) {
// New handshake method with a challenge:
res.addHeader(SEC_WEBSOCKET_ORIGIN, req.getHeader(ORIGIN));
res.addHeader(
SEC_WEBSOCKET_LOCATION, "ws://" + req.getHeader(HttpHeaders.Names.HOST) + req.getUri());
String protocol = req.getHeader(SEC_WEBSOCKET_PROTOCOL);
if (protocol != null) {
res.addHeader(SEC_WEBSOCKET_PROTOCOL, protocol);
}
// Calculate the answer of the challenge.
String key1 = req.getHeader(SEC_WEBSOCKET_KEY1);
String key2 = req.getHeader(SEC_WEBSOCKET_KEY2);
int a =
(int)
(Long.parseLong(key1.replaceAll("[^0-9]", ""))
/ key1.replaceAll("[^ ]", "").length());
int b =
(int)
(Long.parseLong(key2.replaceAll("[^0-9]", ""))
/ key2.replaceAll("[^ ]", "").length());
long c = req.getContent().readLong();
ChannelBuffer input = ChannelBuffers.buffer(16);
input.writeInt(a);
input.writeInt(b);
input.writeLong(c);
try {
ChannelBuffer output =
ChannelBuffers.wrappedBuffer(MessageDigest.getInstance("MD5").digest(input.array()));
res.setContent(output);
} catch (NoSuchAlgorithmException ex) {
throw new UnexpectedException(ex);
}
} else {
// Old handshake method with no challenge:
res.addHeader(WEBSOCKET_ORIGIN, req.getHeader(ORIGIN));
res.addHeader(
WEBSOCKET_LOCATION, "ws://" + req.getHeader(HttpHeaders.Names.HOST) + req.getUri());
String protocol = req.getHeader(WEBSOCKET_PROTOCOL);
if (protocol != null) {
res.addHeader(WEBSOCKET_PROTOCOL, protocol);
}
}
// Keep the original request
Http.Request request = parseRequest(ctx, req);
// Route the websocket request
request.method = "WS";
Map<String, String> route = Router.route(request.method, request.path);
if (!route.containsKey("action")) {
// No route found to handle this websocket connection
ctx.getChannel()
.write(new DefaultHttpResponse(HttpVersion.HTTP_1_1, HttpResponseStatus.NOT_FOUND));
return;
}
// Upgrade the connection and send the handshake response.
ChannelPipeline p = ctx.getChannel().getPipeline();
p.remove("aggregator");
p.replace("decoder", "wsdecoder", new WebSocketFrameDecoder());
// Connect
ctx.getChannel().write(res);
p.replace("encoder", "wsencoder", new WebSocketFrameEncoder());
req.setMethod(new HttpMethod("WEBSOCKET"));
// Inbound
Http.Inbound inbound =
new Http.Inbound() {
@Override
public boolean isOpen() {
return ctx.getChannel().isOpen();
}
};
channels.put(ctx, inbound);
// Outbound
Http.Outbound outbound =
new Http.Outbound() {
final List<ChannelFuture> writeFutures =
Collections.synchronizedList(new ArrayList<ChannelFuture>());
Promise<Void> closeTask;
synchronized void writeAndClose(ChannelFuture writeFuture) {
if (!writeFuture.isDone()) {
writeFutures.add(writeFuture);
writeFuture.addListener(
new ChannelFutureListener() {
public void operationComplete(ChannelFuture cf) throws Exception {
writeFutures.remove(cf);
futureClose();
}
});
}
}
void futureClose() {
if (closeTask != null && writeFutures.isEmpty()) {
closeTask.invoke(null);
}
}
@Override
public void send(String data) {
if (!isOpen()) {
throw new IllegalStateException("The outbound channel is closed");
}
writeAndClose(ctx.getChannel().write(new DefaultWebSocketFrame(data)));
}
@Override
public void send(byte opcode, byte[] data, int offset, int length) {
if (!isOpen()) {
throw new IllegalStateException("The outbound channel is closed");
}
writeAndClose(
ctx.getChannel()
.write(new DefaultWebSocketFrame(opcode, wrappedBuffer(data, offset, length))));
}
@Override
public synchronized boolean isOpen() {
return ctx.getChannel().isOpen() && closeTask == null;
}
@Override
public synchronized void close() {
closeTask = new Promise<Void>();
closeTask.onRedeem(
new Action<Promise<Void>>() {
public void invoke(Promise<Void> completed) {
writeFutures.clear();
ctx.getChannel().disconnect();
closeTask = null;
}
});
futureClose();
}
};
Invoker.invoke(new WebSocketInvocation(route, request, inbound, outbound, ctx, e));
}
