private void sendMessage(
HttpMessage msg, Channel channel, ByteBuf out, HttpResponse res, ChannelPromise promise) {
channel.write(res);
if (log.isTraceEnabled()) {
log.trace(
"Out message: {} - sessionId: {}", out.toString(CharsetUtil.UTF_8), msg.getSessionId());
}
if (out.isReadable()) {
channel.write(out);
} else {
out.release();
}
channel
.writeAndFlush(LastHttpContent.EMPTY_LAST_CONTENT, promise)
.addListener(ChannelFutureListener.CLOSE);
}
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);
}