Examples with DefaultFullHttpResponse io.netty.handler.codec.http.DefaultFullHttpResponse used on opensource projects

Example 16 with DefaultFullHttpResponse

use of io.netty.handler.codec.http.DefaultFullHttpResponse in project netty by netty.

the class SpdyHttpDecoder method createHttpResponse.

private static FullHttpResponse createHttpResponse(SpdyHeadersFrame responseFrame, ByteBufAllocator alloc, boolean validateHeaders) throws Exception {
    // Create the first line of the response from the name/value pairs
    SpdyHeaders headers = responseFrame.headers();
    HttpResponseStatus status = HttpResponseStatus.parseLine(headers.get(STATUS));
    HttpVersion version = HttpVersion.valueOf(headers.getAsString(VERSION));
    headers.remove(STATUS);
    headers.remove(VERSION);
    boolean release = true;
    ByteBuf buffer = alloc.buffer();
    try {
        FullHttpResponse res = new DefaultFullHttpResponse(version, status, buffer, validateHeaders);
        for (Map.Entry<CharSequence, CharSequence> e : responseFrame.headers()) {
            res.headers().add(e.getKey(), e.getValue());
        }
        // The Connection and Keep-Alive headers are no longer valid
        HttpUtil.setKeepAlive(res, true);
        // Transfer-Encoding header is not valid
        res.headers().remove(HttpHeaderNames.TRANSFER_ENCODING);
        res.headers().remove(HttpHeaderNames.TRAILER);
        release = false;
        return res;
    } finally {
        if (release) {
            buffer.release();
        }
    }
}

Example 17 with DefaultFullHttpResponse

use of io.netty.handler.codec.http.DefaultFullHttpResponse in project netty by netty.

the class WebSocketServerHandshaker00 method newHandshakeResponse.

/**
     * <p>
     * Handle the web socket handshake for the web socket specification <a href=
     * "http://tools.ietf.org/html/draft-ietf-hybi-thewebsocketprotocol-00">HyBi version 0</a> and lower. This standard
     * is really a rehash of <a href="http://tools.ietf.org/html/draft-hixie-thewebsocketprotocol-76" >hixie-76</a> and
     * <a href="http://tools.ietf.org/html/draft-hixie-thewebsocketprotocol-75" >hixie-75</a>.
     * </p>
     *
     * <p>
     * Browser request to the server:
     * </p>
     *
     * <pre>
     * GET /demo HTTP/1.1
     * Upgrade: WebSocket
     * Connection: Upgrade
     * Host: example.com
     * Origin: http://example.com
     * Sec-WebSocket-Protocol: chat, sample
     * Sec-WebSocket-Key1: 4 @1  46546xW%0l 1 5
     * Sec-WebSocket-Key2: 12998 5 Y3 1  .P00
     *
     * ^n:ds[4U
     * </pre>
     *
     * <p>
     * Server response:
     * </p>
     *
     * <pre>
     * HTTP/1.1 101 WebSocket Protocol Handshake
     * Upgrade: WebSocket
     * Connection: Upgrade
     * Sec-WebSocket-Origin: http://example.com
     * Sec-WebSocket-Location: ws://example.com/demo
     * Sec-WebSocket-Protocol: sample
     *
     * 8jKS'y:G*Co,Wxa-
     * </pre>
     */
@Override
protected FullHttpResponse newHandshakeResponse(FullHttpRequest req, HttpHeaders headers) {
    // Serve the WebSocket handshake request.
    if (!req.headers().containsValue(HttpHeaderNames.CONNECTION, HttpHeaderValues.UPGRADE, true) || !HttpHeaderValues.WEBSOCKET.contentEqualsIgnoreCase(req.headers().get(HttpHeaderNames.UPGRADE))) {
        throw new WebSocketHandshakeException("not a WebSocket handshake request: missing upgrade");
    }
    // Hixie 75 does not contain these headers while Hixie 76 does
    boolean isHixie76 = req.headers().contains(HttpHeaderNames.SEC_WEBSOCKET_KEY1) && req.headers().contains(HttpHeaderNames.SEC_WEBSOCKET_KEY2);
    // Create the WebSocket handshake response.
    FullHttpResponse res = new DefaultFullHttpResponse(HTTP_1_1, new HttpResponseStatus(101, isHixie76 ? "WebSocket Protocol Handshake" : "Web Socket Protocol Handshake"));
    if (headers != null) {
        res.headers().add(headers);
    }
    res.headers().add(HttpHeaderNames.UPGRADE, HttpHeaderValues.WEBSOCKET);
    res.headers().add(HttpHeaderNames.CONNECTION, HttpHeaderValues.UPGRADE);
    // Fill in the headers and contents depending on handshake getMethod.
    if (isHixie76) {
        // New handshake getMethod with a challenge:
        res.headers().add(HttpHeaderNames.SEC_WEBSOCKET_ORIGIN, req.headers().get(HttpHeaderNames.ORIGIN));
        res.headers().add(HttpHeaderNames.SEC_WEBSOCKET_LOCATION, uri());
        String subprotocols = req.headers().get(HttpHeaderNames.SEC_WEBSOCKET_PROTOCOL);
        if (subprotocols != null) {
            String selectedSubprotocol = selectSubprotocol(subprotocols);
            if (selectedSubprotocol == null) {
                if (logger.isDebugEnabled()) {
                    logger.debug("Requested subprotocol(s) not supported: {}", subprotocols);
                }
            } else {
                res.headers().add(HttpHeaderNames.SEC_WEBSOCKET_PROTOCOL, selectedSubprotocol);
            }
        }
        // Calculate the answer of the challenge.
        String key1 = req.headers().get(HttpHeaderNames.SEC_WEBSOCKET_KEY1);
        String key2 = req.headers().get(HttpHeaderNames.SEC_WEBSOCKET_KEY2);
        int a = (int) (Long.parseLong(BEGINNING_DIGIT.matcher(key1).replaceAll("")) / BEGINNING_SPACE.matcher(key1).replaceAll("").length());
        int b = (int) (Long.parseLong(BEGINNING_DIGIT.matcher(key2).replaceAll("")) / BEGINNING_SPACE.matcher(key2).replaceAll("").length());
        long c = req.content().readLong();
        ByteBuf input = Unpooled.buffer(16);
        input.writeInt(a);
        input.writeInt(b);
        input.writeLong(c);
        res.content().writeBytes(WebSocketUtil.md5(input.array()));
    } else {
        // Old Hixie 75 handshake getMethod with no challenge:
        res.headers().add(HttpHeaderNames.WEBSOCKET_ORIGIN, req.headers().get(HttpHeaderNames.ORIGIN));
        res.headers().add(HttpHeaderNames.WEBSOCKET_LOCATION, uri());
        String protocol = req.headers().get(HttpHeaderNames.WEBSOCKET_PROTOCOL);
        if (protocol != null) {
            res.headers().add(HttpHeaderNames.WEBSOCKET_PROTOCOL, selectSubprotocol(protocol));
        }
    }
    return res;
}

Example 18 with DefaultFullHttpResponse

use of io.netty.handler.codec.http.DefaultFullHttpResponse in project netty by netty.

the class WebSocketServerHandshaker08 method newHandshakeResponse.

/**
     * <p>
     * Handle the web socket handshake for the web socket specification <a href=
     * "http://tools.ietf.org/html/draft-ietf-hybi-thewebsocketprotocol-08">HyBi version 8 to 10</a>. Version 8, 9 and
     * 10 share the same wire protocol.
     * </p>
     *
     * <p>
     * Browser request to the server:
     * </p>
     *
     * <pre>
     * GET /chat HTTP/1.1
     * Host: server.example.com
     * Upgrade: websocket
     * Connection: Upgrade
     * Sec-WebSocket-Key: dGhlIHNhbXBsZSBub25jZQ==
     * Sec-WebSocket-Origin: http://example.com
     * Sec-WebSocket-Protocol: chat, superchat
     * Sec-WebSocket-Version: 8
     * </pre>
     *
     * <p>
     * Server response:
     * </p>
     *
     * <pre>
     * HTTP/1.1 101 Switching Protocols
     * Upgrade: websocket
     * Connection: Upgrade
     * Sec-WebSocket-Accept: s3pPLMBiTxaQ9kYGzzhZRbK+xOo=
     * Sec-WebSocket-Protocol: chat
     * </pre>
     */
@Override
protected FullHttpResponse newHandshakeResponse(FullHttpRequest req, HttpHeaders headers) {
    FullHttpResponse res = new DefaultFullHttpResponse(HTTP_1_1, HttpResponseStatus.SWITCHING_PROTOCOLS);
    if (headers != null) {
        res.headers().add(headers);
    }
    CharSequence key = req.headers().get(HttpHeaderNames.SEC_WEBSOCKET_KEY);
    if (key == null) {
        throw new WebSocketHandshakeException("not a WebSocket request: missing key");
    }
    String acceptSeed = key + WEBSOCKET_08_ACCEPT_GUID;
    byte[] sha1 = WebSocketUtil.sha1(acceptSeed.getBytes(CharsetUtil.US_ASCII));
    String accept = WebSocketUtil.base64(sha1);
    if (logger.isDebugEnabled()) {
        logger.debug("WebSocket version 08 server handshake key: {}, response: {}", key, accept);
    }
    res.headers().add(HttpHeaderNames.UPGRADE, HttpHeaderValues.WEBSOCKET);
    res.headers().add(HttpHeaderNames.CONNECTION, HttpHeaderValues.UPGRADE);
    res.headers().add(HttpHeaderNames.SEC_WEBSOCKET_ACCEPT, accept);
    String subprotocols = req.headers().get(HttpHeaderNames.SEC_WEBSOCKET_PROTOCOL);
    if (subprotocols != null) {
        String selectedSubprotocol = selectSubprotocol(subprotocols);
        if (selectedSubprotocol == null) {
            if (logger.isDebugEnabled()) {
                logger.debug("Requested subprotocol(s) not supported: {}", subprotocols);
            }
        } else {
            res.headers().add(HttpHeaderNames.SEC_WEBSOCKET_PROTOCOL, selectedSubprotocol);
        }
    }
    return res;
}

Example 19 with DefaultFullHttpResponse

use of io.netty.handler.codec.http.DefaultFullHttpResponse in project netty by netty.

the class WebSocketServerHandshakerFactory method sendUnsupportedVersionResponse.

/**
     * Return that we need cannot not support the web socket version
     */
public static ChannelFuture sendUnsupportedVersionResponse(Channel channel, ChannelPromise promise) {
    HttpResponse res = new DefaultFullHttpResponse(HttpVersion.HTTP_1_1, HttpResponseStatus.UPGRADE_REQUIRED);
    res.headers().set(HttpHeaderNames.SEC_WEBSOCKET_VERSION, WebSocketVersion.V13.toHttpHeaderValue());
    HttpUtil.setContentLength(res, 0);
    return channel.writeAndFlush(res, promise);
}

Example 20 with DefaultFullHttpResponse

use of io.netty.handler.codec.http.DefaultFullHttpResponse in project netty by netty.

the class WebSocketServerProtocolHandler method exceptionCaught.

@Override
public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception {
    if (cause instanceof WebSocketHandshakeException) {
        FullHttpResponse response = new DefaultFullHttpResponse(HTTP_1_1, HttpResponseStatus.BAD_REQUEST, Unpooled.wrappedBuffer(cause.getMessage().getBytes()));
        ctx.channel().writeAndFlush(response).addListener(ChannelFutureListener.CLOSE);
    } else {
        ctx.close();
    }
}