/**
* Send a file (with zero-copy) to the client. This method doesn't provide any security guarantee.
* The caller is responsible for the argument they pass in.
*
* @param status The status of the request (e.g. 200 OK or 404 Not Found).
* @param path The path to the file to send to the client.
* @param max_age The expiration time of this entity, in seconds. This is not a timestamp, it's
* how old the resource is allowed to be in the client cache. See RFC 2616 section 14.9 for
* more information. Use 0 to disable caching.
*/
public void sendFile(final HttpResponseStatus status, final String path, final int max_age)
throws IOException {
if (max_age < 0) {
throw new IllegalArgumentException("Negative max_age=" + max_age + " for path=" + path);
}
if (!chan.isConnected()) {
done();
return;
}
RandomAccessFile file;
try {
file = new RandomAccessFile(path, "r");
} catch (FileNotFoundException e) {
logWarn("File not found: " + e.getMessage());
if (querystring != null) {
querystring.remove("png"); // Avoid potential recursion.
}
notFound();
return;
}
final long length = file.length();
{
final DefaultHttpResponse response = new DefaultHttpResponse(HttpVersion.HTTP_1_1, status);
final String mimetype = guessMimeTypeFromUri(path);
response.setHeader(
HttpHeaders.Names.CONTENT_TYPE, mimetype == null ? "text/plain" : mimetype);
final long mtime = new File(path).lastModified();
if (mtime > 0) {
response.setHeader(HttpHeaders.Names.AGE, (System.currentTimeMillis() - mtime) / 1000);
} else {
logWarn("Found a file with mtime=" + mtime + ": " + path);
}
response.setHeader(
HttpHeaders.Names.CACHE_CONTROL, max_age == 0 ? "no-cache" : "max-age=" + max_age);
HttpHeaders.setContentLength(response, length);
chan.write(response);
}
final DefaultFileRegion region = new DefaultFileRegion(file.getChannel(), 0, length);
final ChannelFuture future = chan.write(region);
future.addListener(
new ChannelFutureListener() {
public void operationComplete(final ChannelFuture future) {
region.releaseExternalResources();
done();
}
});
if (!HttpHeaders.isKeepAlive(request)) {
future.addListener(ChannelFutureListener.CLOSE);
}
}
public void handle(NettyHttpRequest req, DefaultHttpResponse resp) {
String filename = req.header(SentryConstants.HeaderKeys.FILENAME);
if (filename == null) {
resp.setContent(ChannelBuffers.copiedBuffer(EXCEPTION_STRING.getBytes()));
return;
}
int didx = filename.lastIndexOf("/");
if (didx > 0) {
String dir = ((SlaveModule) module).getDataDir() + "/" + filename.substring(0, didx);
new File(dir).mkdirs();
System.out.println(dir);
}
byte[] file = req.getRequest().getContent().array();
try {
BufferedOutputStream bos =
new BufferedOutputStream(
new FileOutputStream(((SlaveModule) module).getDataDir() + "/" + filename));
bos.write(file);
bos.close();
HttpResponseUtil.setResponse(resp, "FileReceiveHandler", SUCCESS_STRING);
} catch (IOException e) {
HttpResponseUtil.setResponse(
resp, "FileReceiveHandler", EXCEPTION_STRING, HttpResponseStatus.INTERNAL_SERVER_ERROR);
e.printStackTrace();
}
}
/**
* Sends an HTTP reply to the client.
*
* @param status The status of the request (e.g. 200 OK or 404 Not Found).
* @param buf The content of the reply to send.
*/
private void sendBuffer(final HttpResponseStatus status, final ChannelBuffer buf) {
if (!chan.isConnected()) {
done();
return;
}
final DefaultHttpResponse response = new DefaultHttpResponse(HttpVersion.HTTP_1_1, status);
response.setHeader(HttpHeaders.Names.CONTENT_TYPE, guessMimeType(buf));
// TODO(tsuna): Server, X-Backend, etc. headers.
response.setContent(buf);
final boolean keepalive = HttpHeaders.isKeepAlive(request);
if (keepalive) {
HttpHeaders.setContentLength(response, buf.readableBytes());
}
final ChannelFuture future = chan.write(response);
if (!keepalive) {
future.addListener(ChannelFutureListener.CLOSE);
}
done();
}
@Override
public void exceptionCaught(ChannelHandlerContext ctx, ExceptionEvent e) throws Exception {
Channel channel = ctx.getChannel();
if (channel.getAttachment() != null
&& (Error.class.isAssignableFrom(channel.getAttachment().getClass())
|| WRITING.equals(channel.getAttachment().toString()))) {
return;
}
if (!isReceived(ctx)) {
return;
}
try {
log.error(e.getCause().getMessage(), e.getCause());
channel.setAttachment(new Error());
DefaultHttpResponse response =
new DefaultHttpResponse(HttpVersion.HTTP_1_1, HttpResponseStatus.INTERNAL_SERVER_ERROR);
response.setContent(
ChannelBuffers.copiedBuffer(
response.getStatus().toString() + ":" + e.getCause().getMessage(),
CharsetUtil.UTF_8));
response.headers().set(Names.CONTENT_LENGTH, response.getContent().readableBytes());
response.headers().set(Names.SERVER, "NAVI/1.1.4(UNIX)");
response.headers().set(Names.CONNECTION, "close");
ChannelFuture f = channel.write(response);
f.addListener(ChannelFutureListener.CLOSE);
f.addListener(
new ChannelFutureListener() {
public void operationComplete(ChannelFuture f) throws Exception {
if (!f.isSuccess()) {
log.error(f.getCause().getMessage(), f.getCause());
}
}
});
} catch (Exception ex) {
log.error(e.getCause().getMessage(), e.getCause());
e.getFuture().addListener(ChannelFutureListener.CLOSE);
}
}
public static void send(
CharSequence content, Charset charset, HttpRequest request, ChannelHandlerContext context) {
DefaultHttpResponse response = new DefaultHttpResponse(HTTP_1_1, OK);
response.setContent(ChannelBuffers.copiedBuffer(content, charset));
send(response, request, context);
}
