Example usage for io.vertx.core MultiMap get

List of usage examples for io.vertx.core MultiMap get

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Introduction

In this page you can find the example usage for io.vertx.core MultiMap get.

Prototype

@Nullable
String get(String name);

Source Link

Document

Returns the value of with the specified name.

Usage

From source file:io.nitor.api.backend.proxy.Proxy.java

License:Apache License

static void copyEndToEndHeaders(MultiMap from, MultiMap to) {
    for (Map.Entry<String, String> entry : from.entries()) {
        if (!hopByHopHeaders.contains(entry.getKey())) {
            to.add(entry.getKey(), entry.getValue());
        }//from  ww w.j  ava  2  s.c  o m
    }

    String connectionHeader = from.get("connection");
    if (connectionHeader != null) {
        for (String name : connectionHeaderValueRE.split(connectionHeader.trim())) {
            to.remove(name);
        }
    }
}

From source file:io.nitor.api.backend.proxy.Proxy.java

License:Apache License

public void handle(RoutingContext routingContext) {
    final HttpServerRequest sreq = routingContext.request();
    final boolean isTls = isOrigReqHttps || "https".equals(routingContext.request().scheme());
    final boolean isHTTP2 = routingContext.request().version() == HTTP_2;
    final String chost = getRemoteAddress(routingContext);
    final ProxyTracer tracer = tracerFactory.get();
    String reqId = sreq.headers().get(requestIdHeader);
    boolean hadRequestId = reqId != null;
    if (reqId == null) {
        reqId = Long.toString(requestId.getAndIncrement());
    }/* w w  w  .  j ava 2s.  co  m*/
    tracer.incomingRequestStart(routingContext, isTls, isHTTP2, chost, reqId);
    if (!hadRequestId) {
        sreq.headers().add(requestIdHeader, reqId);
    }

    HttpServerResponse sres = sreq.response();
    sres.exceptionHandler(tracer::outgoingResponseException);
    routingContext.addHeadersEndHandler(tracer::outgoingResponseHeadersEnd);
    sres.bodyEndHandler(tracer::outgoingResponseBodyEnd);
    if (!isHTTP2) {
        sres.headers().add("keep-alive", keepAliveHeaderValue);
        sres.headers().add("connection", "keep-alive");
    }
    sreq.exceptionHandler(t -> {
        tracer.incomingRequestException(t);
        routingContext.fail(new ProxyException(500, RejectReason.incomingRequestFail, t));
    });

    final State state = new State();

    targetResolver.resolveNextHop(routingContext, nextHop -> {
        if (nextHop == null) {
            NullPointerException e = new NullPointerException("nextHop must not be null");
            tracer.incomingRequestException(e);
            throw e;
        }
        tracer.nextHopResolved(nextHop);

        MultiMap sreqh = sreq.headers();
        String origHost = null;
        if (isHTTP2) {
            origHost = sreqh.get(":authority");
        }
        if (origHost == null) {
            origHost = sreqh.get("Host");
        }
        if (origHost == null) {
            ProxyException e = new ProxyException(400, RejectReason.noHostHeader, null);
            tracer.incomingRequestException(e);
            routingContext.fail(e);
            return;
        }
        boolean isWebsocket = !isHTTP2 && "websocket".equals(sreqh.get("upgrade"));
        if (isWebsocket) {
            MultiMap creqh = new CaseInsensitiveHeaders();
            propagateRequestHeaders(isTls, chost, sreqh, origHost, creqh);
            if (nextHop.hostHeader != null) {
                creqh.set("Host", nextHop.hostHeader);
            } else {
                creqh.remove("Host");
            }
            tracer.outgoingWebsocketInitial(creqh);
            client.websocket(nextHop.socketPort, nextHop.socketHost, nextHop.uri, creqh, cws -> {
                // lol no headers copied
                final boolean[] isClosed = { false };
                ServerWebSocket sws = sreq.upgrade();
                tracer.websocketEstablished();
                for (final WebSocketBase[] pair : new WebSocketBase[][] { { sws, cws }, { cws, sws } }) {
                    pair[0].frameHandler(pair[1]::writeFrame).closeHandler(v -> {
                        if (!isClosed[0]) {
                            tracer.establishedWebsocketClosed();
                            isClosed[0] = true;
                            pair[1].close();
                        }
                    }).exceptionHandler(t -> {
                        tracer.establishedWebsocketException(t);
                        t.printStackTrace();
                        if (!isClosed[0]) {
                            isClosed[0] = true;
                            try {
                                pair[1].close();
                            } catch (IllegalStateException e) {
                                // whatever
                            }
                        }
                    });
                }
            }, t -> {
                tracer.outgoingWebsocketException(t);
                t.printStackTrace();
                sres.setStatusCode(HttpResponseStatus.BAD_GATEWAY.code());
                if (t instanceof WebSocketHandshakeRejectedException) {
                    WebSocketHandshakeRejectedException e = (WebSocketHandshakeRejectedException) t;
                    sres.setStatusCode(e.resp.status().code());
                    sres.setStatusMessage(e.resp.status().reasonPhrase());
                    MultiMap cresh = new HeadersAdaptor(e.resp.headers());
                    copyEndToEndHeaders(cresh, sres.headers());
                    sres.headers().add("keep-alive", keepAliveHeaderValue);
                    sres.headers().add("connection", "keep-alive");
                    sres.headers().set("content-length", "0");
                }
                tracer.outgoingResponseInitial();
                tracer.outgoingResponseHeadersEnd(null);
                sres.end();
                tracer.outgoingResponseBodyEnd(null);
            });
            return;
        }
        String expectStr;
        state.expecting100 = null != (expectStr = sreq.headers().get("expect"))
                && expectStr.equalsIgnoreCase("100-continue");
        HttpClientRequest creq = client.request(sreq.method(), nextHop.socketPort, nextHop.socketHost,
                nextHop.uri);
        creq.setTimeout(SECONDS.toMillis(clientReceiveTimeout));
        creq.handler(cres -> {
            cres.exceptionHandler(t -> {
                tracer.incomingResponseException(t);
                if (!state.serverFinished) {
                    state.clientFinished = true;
                    state.serverFinished = true;
                    routingContext.fail(new ProxyException(502, RejectReason.incomingResponseFail, t));
                }
            });
            tracer.incomingResponseStart(cres);
            sres.setStatusCode(cres.statusCode());
            sres.setStatusMessage(cres.statusMessage());
            MultiMap headers = cres.headers();
            copyEndToEndHeaders(headers, sres.headers());
            final boolean reqCompletedBeforeResponse = state.requestComplete;
            if (state.expecting100) {
                log.info("Got " + cres.statusCode() + " instead of 100 Continue");
                if (!isHTTP2) {
                    if (/* state.receivedRequestBodyBefore100 && */ !reqCompletedBeforeResponse) {
                        // TODO investigate whether vertx is able to handle the server request correctly without us closing the conn
                        // but actually the client might have data in transit..
                        log.info(
                                "Client might have started streaming data anyway, so request message boundary is lost. Continue streaming, but close server connection after response complete.");
                        sres.headers().set("connection", "close");
                    } else {
                        log.info(
                                "Client had streamed the complete data anyway. Can carry on without closing server conn.");
                    }
                }
            }
            if (!isHTTP2) {
                if (!sres.headers().contains("connection")
                        || !sres.headers().get("connection").contains("close")) {
                    sres.headers().add("keep-alive", keepAliveHeaderValue);
                    sres.headers().add("connection", "keep-alive");
                }
            }
            if (!headers.contains("content-length")) {
                sres.setChunked(true);
            }
            tracer.outgoingResponseInitial();
            cres.endHandler(v -> {
                tracer.incomingResponseEnd();
                state.clientFinished = true;
                if (!state.serverFinished) {
                    state.serverFinished = true;
                    sres.end();
                }
                if (state.expecting100
                        && /* state.receivedRequestBodyBefore100 && */ !reqCompletedBeforeResponse) {
                    log.info(
                            "Client had started streaming data anyway, so request message boundary is lost. Close client connection.");
                    creq.connection().close();
                }
            });
            pump.start(cres, sres, tracer);
        });
        creq.exceptionHandler(t -> {
            tracer.outgoingRequestException(t);
            if (!state.serverFinished) {
                state.clientFinished = true;
                state.serverFinished = true;
                routingContext.fail(new ProxyException(502, RejectReason.outgoingRequestFail, t));
            }
        });
        MultiMap creqh = creq.headers();
        propagateRequestHeaders(isTls, chost, sreqh, origHost, creqh);
        creq.headers().addAll(addHeaders);
        if (nextHop.hostHeader != null) {
            creq.setHost(nextHop.hostHeader);
        } else {
            creqh.remove("host");
        }
        if (sreqh.getAll("transfer-encoding").stream().anyMatch(v -> v.equals("chunked"))) {
            creq.setChunked(true);
        }
        sres.closeHandler(v -> {
            if (!state.clientFinished) {
                state.clientFinished = true;
                tracer.incomingConnectionPrematurelyClosed();
                HttpConnection connection = creq.connection();
                if (connection != null) {
                    connection.close();
                } // else TODO
            }
            if (!state.serverFinished) {
                state.serverFinished = true;
                routingContext.fail(new ProxyException(0, RejectReason.outgoingResponseFail, null));
            }
        });
        tracer.outgoingRequestInitial(creq);
        if (sreq.isEnded()) {
            state.requestComplete = true;
            Buffer body = routingContext.getBody();
            if (body == null || body.length() == 0) {
                creq.end();
            } else {
                if (!creq.isChunked()) {
                    creq.putHeader("content-length", Integer.toString(body.length()));
                }
                creq.end(routingContext.getBody());
            }
            tracer.incomingRequestEnd();
        } else {
            sreq.endHandler(v -> {
                state.requestComplete = true;
                try {
                    creq.end();
                } catch (IllegalStateException ex) {
                    // ignore - nothing can be done - the request is already complete/closed - TODO log?
                }
                tracer.incomingRequestEnd();
            });

            ReadStream<Buffer> sreqStream;
            if (state.expecting100) {
                log.debug("Expect: 100");
                creq.continueHandler(v -> {
                    // no longer expecting 100, it's like a normal not-expecting-100 request from now on
                    state.expecting100 = false;
                    // since we received 100 Continue, we know the server agrees to accept all the request body, so we can assume we are forgiven for sending data early
                    state.receivedRequestBodyBefore100 = false;
                    log.info("Got 100, propagating");
                    sres.writeContinue();
                });
                // in this case we must flush request headers before the body is sent
                creq.sendHead();
                sreqStream = new ReadStreamWrapper<Buffer>(sreq) {
                    final LazyHandlerWrapper<Buffer> handlerWrapper = new LazyHandlerWrapper<Buffer>(
                            super::handler, null) {
                        @Override
                        public void handle(Buffer event) {
                            log.info("Got first request body chunk");
                            if (state.expecting100) {
                                log.info("Got request body before '100 Continue'");
                                // data received despite not having yet recived 100-continue
                                state.receivedRequestBodyBefore100 = true;
                            }
                            deactivate();
                            wrapped.handle(event);
                        }
                    };

                    @Override
                    public ReadStream<Buffer> handler(Handler<Buffer> handler) {
                        return handlerWrapper.handler(handler, this);
                    }
                };
            } else {
                log.debug("Not expect-100");
                sreqStream = sreq;
            }
            pump.start(sreqStream, creq, tracer);
        }
    });
}

From source file:org.apache.servicecomb.transport.rest.vertx.accesslog.element.impl.RequestHeaderItem.java

License:Apache License

@Override
public String getFormattedItem(AccessLogParam<RoutingContext> accessLogParam) {
    MultiMap headers = accessLogParam.getContextData().request().headers();
    if (null == headers) {
        return "-";
    }/*from w  w  w  .  ja v  a2s.  c o m*/

    String result = headers.get(varName);

    if (null == result) {
        return RESULT_NOT_FOUND;
    }

    return result;
}

From source file:org.apache.servicecomb.transport.rest.vertx.accesslog.element.impl.ResponseHeaderItem.java

License:Apache License

@Override
public String getFormattedItem(AccessLogParam<RoutingContext> accessLogParam) {
    HttpServerResponse response = accessLogParam.getContextData().response();
    if (null == response) {
        return RESULT_NOT_FOUND;
    }/*  www.  ja va 2 s . c o m*/

    MultiMap headers = response.headers();
    if (null == headers) {
        return RESULT_NOT_FOUND;
    }

    String result = headers.get(varName);
    if (null == result) {
        return RESULT_NOT_FOUND;
    }

    return result;
}

From source file:org.entcore.directory.services.impl.HttpHeaderUtils.java

License:Open Source License

public static boolean checkIfModifiedSince(MultiMap headers, Date refDate) {
    String ifModified = headers.get("If-Modified-Since");
    if (ifModified != null) {
        try {/*from  w  w w  .  ja  va2  s. c o m*/
            Date lastTime = httpDateFormat.parse(ifModified);
            Instant refDateInstant = refDate.toInstant().truncatedTo(ChronoUnit.SECONDS);
            Instant lastTimeInstant = lastTime.toInstant().truncatedTo(ChronoUnit.SECONDS);
            return refDateInstant.isAfter(lastTimeInstant);
        } catch (ParseException e) {
            return true;
        }
    }
    return true;
}

From source file:org.etourdot.vertx.marklogic.http.utils.HttpUtils.java

License:Open Source License

public static ContentType extractContentType(MultiMap headers) {
    if (headers.contains(HttpHeaders.CONTENT_TYPE)) {
        Matcher regexMatcher = CONTENTTYPE_REGEX_PATTERN.matcher(headers.get(HttpHeaders.CONTENT_TYPE));
        if (regexMatcher.find()) {
            return new ContentType(regexMatcher.group(1), regexMatcher.group(2), regexMatcher.group(3));
        }/*w ww  .  j av  a 2  s  . c  om*/
    }
    return null;
}

From source file:org.etourdot.vertx.marklogic.http.utils.HttpUtils.java

License:Open Source License

public static ContentDisposition extractContentDisposition(MultiMap headers) {
    if (headers.contains(HEADER_CONTENT_DISPOSITION)) {
        String disposition = headers.get(HEADER_CONTENT_DISPOSITION);
        Matcher regexMatcher = DISPOSITION_REGEX_PATTERN.matcher(disposition);
        if (regexMatcher.find()) {
            return new ContentDisposition(regexMatcher.group("TYPE"), regexMatcher.group("FILENAME"),
                    regexMatcher.group("CATEGORY"), regexMatcher.group("FORMAT"));
        }//from   www. ja  va  2  s .c  o m
    }
    return null;
}

From source file:org.etourdot.vertx.marklogic.http.utils.HttpUtils.java

License:Open Source License

public static long extractContentLength(MultiMap headers) {
    if (headers.contains(HttpHeaders.CONTENT_LENGTH)) {
        return Long.parseLong(headers.get(HttpHeaders.CONTENT_LENGTH));
    }//from  w ww .j a va  2  s . c  o  m
    return 0;
}

From source file:org.etourdot.vertx.marklogic.http.utils.HttpUtils.java

License:Open Source License

public static String extractDocumentUri(MultiMap headers) {
    if (headers.contains(HttpHeaders.LOCATION)) {
        String location = headers.get(HttpHeaders.LOCATION);
        return location.substring(location.indexOf(DOCUMENT_URI_PREFIX) + DOCUMENT_URI_PREFIX.length());
    } else if (headers.contains(HEADER_CONTENT_DISPOSITION)) {
        String disposition = headers.get(HEADER_CONTENT_DISPOSITION);
        Matcher regexMatcher = DISPOSITION_REGEX_PATTERN.matcher(disposition);
        if (regexMatcher.find()) {
            return regexMatcher.group(2);
        }//from   w  w w  .  jav a 2 s.  c  om
    }
    return null;
}

From source file:org.etourdot.vertx.marklogic.http.utils.HttpUtils.java

License:Open Source License

public static Format extractFormat(MultiMap headers) {
    if (headers.contains(VND_MARKLOGIC_DOCUMENT_FORMAT)) {
        return Format.getValue(headers.get(VND_MARKLOGIC_DOCUMENT_FORMAT));
    } else if (headers.contains(HEADER_CONTENT_DISPOSITION)) {
        String disposition = headers.get(HEADER_CONTENT_DISPOSITION);
        Matcher regexMatcher = DISPOSITION_REGEX_PATTERN.matcher(disposition);
        if (regexMatcher.find()) {
            return Format.getValue(regexMatcher.group(4));
        }//from  w  w w .  j a v  a  2s .  c  om
    }
    return null;
}