Example usage for io.netty.handler.codec.http HttpHeaderNames EXPIRES

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In this page you can find the example usage for io.netty.handler.codec.http HttpHeaderNames EXPIRES.

Prototype

AsciiString EXPIRES

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Document

"expires"

Usage

From source file:org.pidome.server.system.network.http.HttpClientHandler.java

License:Apache License

/**
 * Writes the response to the output/* w w  w.  jav a  2s. com*/
 * @param ctx The channel context
 * @param status The response status
 * @param buf The buffer containing the data to send.
 * @param fileType The file type.
 * @param streamId The Stream id (only used in http2)
 * @param cache (if cache headers should be send).
 */
@Override
public final void writeResponse(ChannelHandlerContext ctx, HttpResponseStatus status, byte[] buf,
        String fileType, String streamId, boolean cache) {

    ByteBuf content = ctx.alloc().buffer(buf.length);
    content.writeBytes(buf);
    FullHttpResponse response = new DefaultFullHttpResponse(HttpVersion.HTTP_1_1, status, content);

    HttpUtil.setContentLength(response, response.content().readableBytes());

    // In case of SPDY protocol used.
    if (spdyId != null) {
        response.headers().set(SPDY_STREAM_ID, spdyId);
        response.headers().set(SPDY_STREAM_PRIO, 0);
        response.headers().set(HttpHeaderNames.SERVER, "PiDome integrated 0.2 SPDY");
    } else {
        response.headers().set(HttpHeaderNames.SERVER, "PiDome integrated 0.2 HTTP1.1");
    }

    response.headers().set(HttpHeaderNames.CONTENT_TYPE, HttpRequestHandler.getContentTypeHeader(fileType));
    response.headers().set(HttpHeaderNames.ACCESS_CONTROL_ALLOW_ORIGIN,
            "http" + ((ssl == true) ? "s" : "") + "://" + plainIp + ((port != 80) ? ":" + port : ""));
    response.headers().set(HttpHeaderNames.ACCESS_CONTROL_ALLOW_CREDENTIALS, "true");

    if (cache == true) {
        DateTime dt = new DateTime();
        HttpHeaderDateFormat dateFormat = HttpHeaderDateFormat.get();
        response.headers().set(HttpHeaderNames.CACHE_CONTROL, "public, max-age=3153600");
        response.headers().set(HttpHeaderNames.EXPIRES, dateFormat.format(dt.plusMonths(12).toDate()));
    } else {
        response.headers().set(HttpHeaderNames.CACHE_CONTROL, "no-cache, must-revalidate");
        response.headers().set(HttpHeaderNames.EXPIRES, "Sat, 26 Jul 1997 05:00:00 GMT");
    }

    if (keepAlive) {
        // Add keep alive header as per:
        // - http://www.w3.org/Protocols/HTTP/1.1/draft-ietf-http-v11-spec-01.html#Connection
        response.headers().set(HttpHeaderNames.CONNECTION, HttpHeaderValues.KEEP_ALIVE);

        ctx.write(response);
    } else {
        // If keep-alive is off, close the connection once the content is fully written.
        ctx.write(Unpooled.EMPTY_BUFFER).addListener(ChannelFutureListener.CLOSE);
    }
}

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From source file:org.thingsplode.synapse.endpoint.handlers.FileRequestHandler.java

License:Apache License

/**
 * Sets the Date and Cache headers for the HTTP Response
 *
 * @param response HTTP response/*from w  w w  .ja va 2 s .  c o  m*/
 * @param fileToCache file to extract content type
 */
public void setDateAndCacheHeaders(HttpResponse response, File fileToCache) {
    SimpleDateFormat dateFormatter = new SimpleDateFormat(HTTP_DATE_FORMAT, Locale.US);
    dateFormatter.setTimeZone(TimeZone.getTimeZone(HTTP_DATE_GMT_TIMEZONE));

    // Date header
    Calendar time = new GregorianCalendar();
    response.headers().set(HttpHeaderNames.DATE, dateFormatter.format(time.getTime()));

    // Add cache headers
    time.add(Calendar.SECOND, HTTP_CACHE_SECONDS);
    response.headers().set(HttpHeaderNames.EXPIRES, dateFormatter.format(time.getTime()));
    response.headers().set(HttpHeaderNames.CACHE_CONTROL, "private, max-age=" + HTTP_CACHE_SECONDS);
    response.headers().set(HttpHeaderNames.LAST_MODIFIED,
            dateFormatter.format(new Date(fileToCache.lastModified())));
}

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