Package io.netty.handler.codec.http

Examples of io.netty.handler.codec.http.DefaultFullHttpResponse

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    }

    private void handleHttpRequest(ChannelHandlerContext ctx, FullHttpRequest req) throws Exception {
        // Handle a bad request.
        if (!req.getDecoderResult().isSuccess()) {
            sendHttpResponse(ctx, req, new DefaultFullHttpResponse(HTTP_1_1, BAD_REQUEST));
            return;
        }

        // Allow only GET methods.
        if (req.getMethod() != GET) {
            sendHttpResponse(ctx, req, new DefaultFullHttpResponse(HTTP_1_1, FORBIDDEN));
            return;
        }

        // Handshake
        WebSocketServerHandshakerFactory wsFactory = new WebSocketServerHandshakerFactory(
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    }

    private void handleHttpRequest(ChannelHandlerContext ctx, FullHttpRequest req) throws Exception {
        // Handle a bad request.
        if (!req.getDecoderResult().isSuccess()) {
            sendHttpResponse(ctx, req, new DefaultFullHttpResponse(HTTP_1_1, BAD_REQUEST));
            return;
        }

        // Allow only GET methods.
        if (req.getMethod() != GET) {
            sendHttpResponse(ctx, req, new DefaultFullHttpResponse(HTTP_1_1, FORBIDDEN));
            return;
        }

        // Send the demo page and favicon.ico
        if ("/".equals(req.getUri())) {
            ByteBuf content = WebSocketServerIndexPage.getContent(getWebSocketLocation(req));
            FullHttpResponse res = new DefaultFullHttpResponse(HTTP_1_1, OK, content);

            res.headers().set(CONTENT_TYPE, "text/html; charset=UTF-8");
            setContentLength(res, content.readableBytes());

            sendHttpResponse(ctx, req, res);
            return;
        }
        if ("/favicon.ico".equals(req.getUri())) {
            FullHttpResponse res = new DefaultFullHttpResponse(HTTP_1_1, NOT_FOUND);
            sendHttpResponse(ctx, req, res);
            return;
        }

        // Handshake
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        HttpResponseStatus status = SpdyHeaders.getStatus(spdyVersion, responseFrame);
        HttpVersion version = SpdyHeaders.getVersion(spdyVersion, responseFrame);
        SpdyHeaders.removeStatus(spdyVersion, responseFrame);
        SpdyHeaders.removeVersion(spdyVersion, responseFrame);

        FullHttpResponse res = new DefaultFullHttpResponse(version, status);
        for (Map.Entry<String, String> e: responseFrame.headers().entries()) {
            res.headers().add(e.getKey(), e.getValue());
        }

        // The Connection and Keep-Alive headers are no longer valid
        HttpHeaders.setKeepAlive(res, true);

        // Transfer-Encoding header is not valid
        res.headers().remove(HttpHeaders.Names.TRANSFER_ENCODING);
        res.headers().remove(HttpHeaders.Names.TRAILER);

        return res;
    }
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    }

    @Override
    public void messageReceived(final ChannelHandlerContext ctx, final FullHttpRequest msg) throws Exception {
        if (msg.getMethod() != HttpMethod.GET) {
            final DefaultFullHttpResponse response = new DefaultFullHttpResponse(HttpVersion.HTTP_1_1,
                    HttpResponseStatus.METHOD_NOT_ALLOWED,
                    Unpooled.copiedBuffer("<html><body>Only GET method allowed</body></html>", CharsetUtil.UTF_8));
            response.headers().set(HttpHeaders.Names.CONTENT_TYPE, HTML_MEDIA_TYPE);
            send(ctx, response);
            return;
        }

        final File file = deduceFile(msg.getUri());

        final HttpResponseStatus status;
        final ByteBuf body;
        final String mediaType;
        if (file.exists()) {
            final ByteArrayOutputStream baos = new ByteArrayOutputStream();
            final FileInputStream fileInputStream = new FileInputStream(file);
            IOUtils.copy(fileInputStream, baos);
            body = Unpooled.copiedBuffer(baos.toByteArray());
            IOUtils.closeQuietly(fileInputStream);

            mediaType = mediaType(file.getName());
            status = HttpResponseStatus.OK;
        } else {
            body = Unpooled.copiedBuffer("<body><html>File not found: " + file.getPath() + "<body></html>", CharsetUtil.UTF_8);
            status = HttpResponseStatus.NOT_FOUND;
            mediaType = HTML_MEDIA_TYPE;
        }

        final DefaultFullHttpResponse response = new DefaultFullHttpResponse(HttpVersion.HTTP_1_1, status, body);
        response.headers().set(HttpHeaders.Names.CONTENT_TYPE, mediaType);
        send(ctx, response);
    }
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    private boolean writeResponse(HttpObject currentObj, ChannelHandlerContext ctx) {
        // Decide whether to close the connection or not.
        boolean keepAlive = HttpHeaders.isKeepAlive(request);
        // Build the response object.
        FullHttpResponse response = new DefaultFullHttpResponse(
                HTTP_1_1, currentObj.getDecoderResult().isSuccess()? OK : BAD_REQUEST,
                Unpooled.copiedBuffer(buf.toString(), CharsetUtil.UTF_8));

        response.headers().set(CONTENT_TYPE, "text/plain; charset=UTF-8");

        if (keepAlive) {
            // Add 'Content-Length' header only for a keep-alive connection.
            response.headers().set(CONTENT_LENGTH, response.content().readableBytes());
            // 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(CONNECTION, HttpHeaders.Values.KEEP_ALIVE);
        }

        // Encode the cookie.
        String cookieString = request.headers().get(COOKIE);
        if (cookieString != null) {
            Set<Cookie> cookies = CookieDecoder.decode(cookieString);
            if (!cookies.isEmpty()) {
                // Reset the cookies if necessary.
                for (Cookie cookie: cookies) {
                    response.headers().add(SET_COOKIE, ServerCookieEncoder.encode(cookie));
                }
            }
        } else {
            // Browser sent no cookie.  Add some.
            response.headers().add(SET_COOKIE, ServerCookieEncoder.encode("key1", "value1"));
            response.headers().add(SET_COOKIE, ServerCookieEncoder.encode("key2", "value2"));
        }

        // Write the response.
        ctx.write(response);
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        return keepAlive;
    }

    private static void send100Continue(ChannelHandlerContext ctx) {
        FullHttpResponse response = new DefaultFullHttpResponse(HTTP_1_1, CONTINUE);
        ctx.write(response);
    }
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    }

    private void handleHttpRequest(ChannelHandlerContext ctx, FullHttpRequest req) {
        // Handle a bad request.
        if (!req.getDecoderResult().isSuccess()) {
            sendHttpResponse(ctx, req, new DefaultFullHttpResponse(HTTP_1_1, BAD_REQUEST));
            return;
        }

        // Allow only GET methods.
        if (req.getMethod() != GET) {
            sendHttpResponse(ctx, req, new DefaultFullHttpResponse(HTTP_1_1, FORBIDDEN));
            return;
        }

        // Send the demo page and favicon.ico
        if ("/".equals(req.getUri())) {
            ByteBuf content = WebSocketServerIndexPage.getContent(getWebSocketLocation(req));
            FullHttpResponse res = new DefaultFullHttpResponse(HTTP_1_1, OK, content);

            res.headers().set(CONTENT_TYPE, "text/html; charset=UTF-8");
            HttpHeaders.setContentLength(res, content.readableBytes());

            sendHttpResponse(ctx, req, res);
            return;
        }
        if ("/favicon.ico".equals(req.getUri())) {
            FullHttpResponse res = new DefaultFullHttpResponse(HTTP_1_1, NOT_FOUND);
            sendHttpResponse(ctx, req, res);
            return;
        }

        // Handshake
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        boolean close = HttpHeaders.Values.CLOSE.equalsIgnoreCase(request.headers().get(CONNECTION))
                || request.getProtocolVersion().equals(HttpVersion.HTTP_1_0)
                && !HttpHeaders.Values.KEEP_ALIVE.equalsIgnoreCase(request.headers().get(CONNECTION));

        // Build the response object.
        FullHttpResponse response = new DefaultFullHttpResponse(
                HttpVersion.HTTP_1_1, HttpResponseStatus.OK, buf);
        response.headers().set(CONTENT_TYPE, "text/plain; charset=UTF-8");

        if (!close) {
            // There's no need to add 'Content-Length' header
            // if this is the last response.
            response.headers().set(CONTENT_LENGTH, buf.readableBytes());
        }

        Set<Cookie> cookies;
        String value = request.headers().get(COOKIE);
        if (value == null) {
            cookies = Collections.emptySet();
        } else {
            cookies = CookieDecoder.decode(value);
        }
        if (!cookies.isEmpty()) {
            // Reset the cookies if necessary.
            for (Cookie cookie : cookies) {
                response.headers().add(SET_COOKIE, ServerCookieEncoder.encode(cookie));
            }
        }
        // Write the response.
        ChannelFuture future = channel.writeAndFlush(response);
        // Close the connection after the write operation is done if necessary.
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        responseContent.append("</body>");
        responseContent.append("</html>");

        ByteBuf buf = copiedBuffer(responseContent.toString(), CharsetUtil.UTF_8);
        // Build the response object.
        FullHttpResponse response = new DefaultFullHttpResponse(
                HttpVersion.HTTP_1_1, HttpResponseStatus.OK, buf);

        response.headers().set(CONTENT_TYPE, "text/html; charset=UTF-8");
        response.headers().set(CONTENT_LENGTH, buf.readableBytes());

        // Write the response.
        ctx.channel().writeAndFlush(response);
    }
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    }

    private static final Pattern ALLOWED_FILE_NAME = Pattern.compile("[A-Za-z0-9][-_A-Za-z0-9\\.]*");

    private static void sendListing(ChannelHandlerContext ctx, File dir) {
        FullHttpResponse response = new DefaultFullHttpResponse(HTTP_1_1, OK);
        response.headers().set(CONTENT_TYPE, "text/html; charset=UTF-8");

        StringBuilder buf = new StringBuilder();
        String dirPath = dir.getPath();

        buf.append("<!DOCTYPE html>\r\n");
        buf.append("<html><head><title>");
        buf.append("Listing of: ");
        buf.append(dirPath);
        buf.append("</title></head><body>\r\n");

        buf.append("<h3>Listing of: ");
        buf.append(dirPath);
        buf.append("</h3>\r\n");

        buf.append("<ul>");
        buf.append("<li><a href=\"../\">..</a></li>\r\n");

        for (File f: dir.listFiles()) {
            if (f.isHidden() || !f.canRead()) {
                continue;
            }

            String name = f.getName();
            if (!ALLOWED_FILE_NAME.matcher(name).matches()) {
                continue;
            }

            buf.append("<li><a href=\"");
            buf.append(name);
            buf.append("\">");
            buf.append(name);
            buf.append("</a></li>\r\n");
        }

        buf.append("</ul></body></html>\r\n");
        ByteBuf buffer = Unpooled.copiedBuffer(buf, CharsetUtil.UTF_8);
        response.content().writeBytes(buffer);
        buffer.release();

        // Close the connection as soon as the error message is sent.
        ctx.writeAndFlush(response).addListener(ChannelFutureListener.CLOSE);
    }
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