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Example 1 with HostColonPort

use of com.predic8.membrane.core.transport.http.HostColonPort in project service-proxy by membrane.

the class IndexInterceptor method getServiceInfo.

private ServiceInfo getServiceInfo(Exchange exc, AbstractServiceProxy sp) {
    if (sp.getInterceptors().size() == 1 && sp.getInterceptors().get(0) instanceof IndexInterceptor)
        return null;
    ServiceProxyKey k = (ServiceProxyKey) sp.getKey();
    ServiceInfo ri = new ServiceInfo();
    ri.method = k.getMethod();
    // NOTE: when running as servlet, we have no idea what the protocol was
    ri.ssl = sp.getSslInboundContext() != null;
    String protocol = ri.ssl ? "https" : "http";
    String host = k.isHostWildcard() ? new HostColonPort(ri.ssl, exc.getRequest().getHeader().getHost()).host : fullfillRegexp(ServiceProxyKey.createHostPattern(k.getHost()));
    if (host == null || host.length() == 0)
        host = exc.getHandler().getLocalAddress().getHostAddress().toString();
    int port = k.getPort();
    if (port == -1 || !exc.getHandler().isMatchLocalPort())
        port = exc.getHandler().getLocalPort();
    String path;
    if (!k.isUsePathPattern()) {
        path = "/";
    } else if (k.isPathRegExp()) {
        path = fullfillRegexp(k.getPath());
    } else {
        path = "/" + StringUtils.removeStart(k.getPath(), "/");
    }
    if (!"".equals(exc.getHandler().getContextPath(exc))) {
        path = StringUtils.removeEnd(exc.getHandler().getContextPath(exc), "/") + "/" + StringUtils.removeStart(path, "/");
    }
    ri.name = sp.getName();
    if (path != null)
        ri.url = protocol + "://" + host + ":" + port + path;
    ri.host = k.isHostWildcard() ? "" : StringEscapeUtils.escapeHtml(k.getHost());
    ri.port = k.getPort() == -1 ? "" : "" + k.getPort();
    ri.path = k.isUsePathPattern() ? "<tt>" + StringEscapeUtils.escapeHtml(k.getPath()) + "</tt>" + (k.isPathRegExp() ? " (regex)" : "") : "";
    return ri;
}
Also used : ServiceProxyKey(com.predic8.membrane.core.rules.ServiceProxyKey) HostColonPort(com.predic8.membrane.core.transport.http.HostColonPort)

Example 2 with HostColonPort

use of com.predic8.membrane.core.transport.http.HostColonPort in project service-proxy by membrane.

the class HttpClient method call.

public Exchange call(Exchange exc, boolean adjustHostHeader, boolean failOverOn5XX) throws Exception {
    if (exc.getDestinations().isEmpty())
        throw new IllegalStateException("List of destinations is empty. Please specify at least one destination.");
    int counter = 0;
    Exception exception = null;
    Object trackNodeStatusObj = exc.getProperty(Exchange.TRACK_NODE_STATUS);
    boolean trackNodeStatus = trackNodeStatusObj != null && trackNodeStatusObj instanceof Boolean && (Boolean) trackNodeStatusObj;
    disableStreamingForRetries(exc);
    while (counter < maxRetries) {
        Connection con = null;
        String dest = getDestination(exc, counter);
        HostColonPort target = null;
        try {
            log.debug("try # " + counter + " to " + dest);
            target = init(exc, dest, adjustHostHeader);
            if (counter == 0) {
                con = exc.getTargetConnection();
                if (con != null) {
                    if (!con.isSame(target.host, target.port)) {
                        con.close();
                        con = null;
                    } else {
                        con.setKeepAttachedToExchange(true);
                    }
                }
            }
            SSLProvider sslProvider = getOutboundSSLProvider(exc, target);
            if (con == null) {
                con = conMgr.getConnection(target.host, target.port, localAddr, sslProvider, connectTimeout, getSNIServerName(exc), proxy, proxySSLContext);
                con.setKeepAttachedToExchange(exc.getRequest().isBindTargetConnectionToIncoming());
                exc.setTargetConnection(con);
            }
            if (proxy != null && sslProvider == null)
                // if we use a proxy for a plain HTTP (=non-HTTPS) request, attach the proxy credentials.
                exc.getRequest().getHeader().setProxyAutorization(proxy.getCredentials());
            Response response;
            String newProtocol = null;
            if (exc.getRequest().isCONNECTRequest()) {
                handleConnectRequest(exc, con);
                response = Response.ok().build();
                newProtocol = "CONNECT";
            } else {
                response = doCall(exc, con);
                if (trackNodeStatus)
                    exc.setNodeStatusCode(counter, response.getStatusCode());
                if (exc.getProperty(Exchange.ALLOW_WEBSOCKET) == Boolean.TRUE && isUpgradeToResponse(response, "websocket")) {
                    log.debug("Upgrading to WebSocket protocol.");
                    newProtocol = "WebSocket";
                }
                if (exc.getProperty(Exchange.ALLOW_TCP) == Boolean.TRUE && isUpgradeToResponse(response, "tcp")) {
                    log.debug("Upgrading to TCP protocol.");
                    newProtocol = "TCP";
                }
                if (exc.getProperty(Exchange.ALLOW_SPDY) == Boolean.TRUE && isUpgradeToResponse(response, "SPDY/3.1")) {
                    log.debug("Upgrading to SPDY/3.1 protocol.");
                    newProtocol = "SPDY/3.1";
                }
            }
            if (newProtocol != null) {
                setupConnectionForwarding(exc, con, newProtocol, streamPumpStats);
                exc.getDestinations().clear();
                exc.getDestinations().add(dest);
                con.setExchange(exc);
                exc.setResponse(response);
                return exc;
            }
            boolean is5XX = 500 <= response.getStatusCode() && response.getStatusCode() < 600;
            if (!failOverOn5XX || !is5XX || counter == maxRetries - 1) {
                applyKeepAliveHeader(response, con);
                exc.getDestinations().clear();
                exc.getDestinations().add(dest);
                con.setExchange(exc);
                response.addObserver(con);
                exc.setResponse(response);
                return exc;
            }
        // java.net.SocketException: Software caused connection abort: socket write error
        } catch (ConnectException e) {
            exception = e;
            log.info("Connection to " + (target == null ? dest : target) + " refused.");
        } catch (SocketException e) {
            if (e.getMessage().contains("Software caused connection abort")) {
                log.info("Connection to " + dest + " was aborted externally. Maybe by the server or the OS Membrane is running on.");
            } else if (e.getMessage().contains("Connection reset")) {
                log.info("Connection to " + dest + " was reset externally. Maybe by the server or the OS Membrane is running on.");
            } else {
                logException(exc, counter, e);
            }
            exception = e;
        } catch (UnknownHostException e) {
            log.warn("Unknown host: " + (target == null ? dest : target));
            exception = e;
            if (exc.getDestinations().size() < 2) {
                // don't retry this host, it's useless. (it's very unlikely that it will work after timeBetweenTriesMs)
                break;
            }
        } catch (EOFWhileReadingFirstLineException e) {
            log.debug("Server connection to " + dest + " terminated before line was read. Line so far: " + e.getLineSoFar());
            exception = e;
        } catch (NoResponseException e) {
            throw e;
        } catch (Exception e) {
            logException(exc, counter, e);
            exception = e;
        } finally {
            if (trackNodeStatus) {
                if (exception != null) {
                    exc.setNodeException(counter, exception);
                }
            }
        }
        counter++;
        if (exc.getDestinations().size() == 1) {
            // as documented above, the sleep timeout is only applied between successive calls to the same destination.
            Thread.sleep(timeBetweenTriesMs);
        }
    }
    throw exception;
}
Also used : IOException(java.io.IOException) EndOfStreamException(com.predic8.membrane.core.util.EndOfStreamException) SSLProvider(com.predic8.membrane.core.transport.ssl.SSLProvider)

Aggregations

ServiceProxyKey (com.predic8.membrane.core.rules.ServiceProxyKey)1 HostColonPort (com.predic8.membrane.core.transport.http.HostColonPort)1 SSLProvider (com.predic8.membrane.core.transport.ssl.SSLProvider)1 EndOfStreamException (com.predic8.membrane.core.util.EndOfStreamException)1 IOException (java.io.IOException)1