Example usage for java.util.zip Deflater DEFAULT_STRATEGY

List of usage examples for java.util.zip Deflater DEFAULT_STRATEGY

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Prototype

int DEFAULT_STRATEGY

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Document

Default compression strategy.

Usage

From source file:com.twinsoft.convertigo.engine.servlets.ReverseProxyServlet.java

/**
 * Executes the {@link HttpMethod} passed in and sends the proxy response
 * back to the client via the given {@link HttpServletResponse}
 * /*from  w w w . j a v a 2s  .  c o m*/
 * @param httpMethodProxyRequest
 *            An object representing the proxy request to be made
 * @param httpServletResponse
 *            An object by which we can send the proxied response back to
 *            the client
 * @throws IOException
 *             Can be thrown by the {@link HttpClient}.executeMethod
 * @throws ServletException
 *             Can be thrown to indicate that another error has occurred
 * @throws EngineException
 */
private void doRequest(HttpMethodType httpMethodType, HttpServletRequest httpServletRequest,
        HttpServletResponse httpServletResponse) throws IOException, ServletException {
    try {
        Engine.logEngine.debug("(ReverseProxyServlet) Starting request handling");

        if (Boolean.parseBoolean(EnginePropertiesManager.getProperty(PropertyName.SSL_DEBUG))) {
            System.setProperty("javax.net.debug", "all");
            Engine.logEngine.trace("(ReverseProxyServlet) Enabling SSL debug mode");
        } else {
            System.setProperty("javax.net.debug", "");
            Engine.logEngine.debug("(ReverseProxyServlet) Disabling SSL debug mode");
        }

        String baseUrl;
        String projectName;
        String connectorName;
        String contextName;
        String extraPath;

        {
            String requestURI = httpServletRequest.getRequestURI();
            Engine.logEngine.trace("(ReverseProxyServlet) Requested URI : " + requestURI);
            Matcher m = reg_fields.matcher(requestURI);
            if (m.matches() && m.groupCount() >= 5) {
                baseUrl = m.group(1);
                projectName = m.group(2);
                connectorName = m.group(3);
                contextName = m.group(4);
                extraPath = m.group(5);
            } else {
                throw new MalformedURLException(
                        "The request doesn't contains needed fields : projectName, connectorName and contextName");
            }
        }

        String sessionID = httpServletRequest.getSession().getId();

        Engine.logEngine.debug("(ReverseProxyServlet) baseUrl : " + baseUrl + " ; projectName : " + projectName
                + " ; connectorName : " + connectorName + " ; contextName : " + contextName + " ; extraPath : "
                + extraPath + " ; sessionID : " + sessionID);

        Context context = Engine.theApp.contextManager.get(null, contextName, sessionID, null, projectName,
                connectorName, null);

        Project project = Engine.theApp.databaseObjectsManager.getProjectByName(projectName);
        context.projectName = projectName;
        context.project = project;

        ProxyHttpConnector proxyHttpConnector = (ProxyHttpConnector) project.getConnectorByName(connectorName);
        context.connector = proxyHttpConnector;
        context.connectorName = proxyHttpConnector.getName();

        HostConfiguration hostConfiguration = proxyHttpConnector.hostConfiguration;

        // Proxy configuration
        String proxyServer = Engine.theApp.proxyManager.getProxyServer();
        String proxyUser = Engine.theApp.proxyManager.getProxyUser();
        String proxyPassword = Engine.theApp.proxyManager.getProxyPassword();
        int proxyPort = Engine.theApp.proxyManager.getProxyPort();

        if (!proxyServer.equals("")) {
            hostConfiguration.setProxy(proxyServer, proxyPort);
            Engine.logEngine.debug("(ReverseProxyServlet) Using proxy: " + proxyServer + ":" + proxyPort);
        } else {
            // Remove old proxy configuration
            hostConfiguration.setProxyHost(null);
        }

        String targetHost = proxyHttpConnector.getServer();
        Engine.logEngine.debug("(ReverseProxyServlet) Target host: " + targetHost);
        int targetPort = proxyHttpConnector.getPort();
        Engine.logEngine.debug("(ReverseProxyServlet) Target port: " + targetPort);

        // Configuration SSL
        Engine.logEngine.debug("(ReverseProxyServlet) Https: " + proxyHttpConnector.isHttps());
        CertificateManager certificateManager = proxyHttpConnector.certificateManager;
        boolean trustAllServerCertificates = proxyHttpConnector.isTrustAllServerCertificates();

        if (proxyHttpConnector.isHttps()) {
            Engine.logEngine.debug("(ReverseProxyServlet) Setting up SSL properties");
            certificateManager.collectStoreInformation(context);

            Engine.logEngine.debug(
                    "(ReverseProxyServlet) CertificateManager has changed: " + certificateManager.hasChanged);
            if (certificateManager.hasChanged || (!targetHost.equalsIgnoreCase(hostConfiguration.getHost()))
                    || (hostConfiguration.getPort() != targetPort)) {
                Engine.logEngine
                        .debug("(ReverseProxyServlet) Using MySSLSocketFactory for creating the SSL socket");
                Protocol myhttps = new Protocol("https",
                        MySSLSocketFactory.getSSLSocketFactory(certificateManager.keyStore,
                                certificateManager.keyStorePassword, certificateManager.trustStore,
                                certificateManager.trustStorePassword, trustAllServerCertificates),
                        targetPort);

                hostConfiguration.setHost(targetHost, targetPort, myhttps);
            }

            Engine.logEngine.debug("(ReverseProxyServlet) Updated host configuration for SSL purposes");
        } else {
            hostConfiguration.setHost(targetHost, targetPort);
        }

        HttpMethod httpMethodProxyRequest;

        String targetPath = proxyHttpConnector.getBaseDir() + extraPath;

        // Handle the query string
        if (httpServletRequest.getQueryString() != null) {
            targetPath += "?" + httpServletRequest.getQueryString();
        }
        Engine.logEngine.debug("(ReverseProxyServlet) Target path: " + targetPath);

        Engine.logEngine.debug("(ReverseProxyServlet) Requested method: " + httpMethodType);

        if (httpMethodType == HttpMethodType.GET) {
            // Create a GET request
            httpMethodProxyRequest = new GetMethod();
        } else if (httpMethodType == HttpMethodType.POST) {
            // Create a standard POST request
            httpMethodProxyRequest = new PostMethod();
            ((PostMethod) httpMethodProxyRequest)
                    .setRequestEntity(new InputStreamRequestEntity(httpServletRequest.getInputStream()));
        } else {
            throw new IllegalArgumentException("Unknown HTTP method: " + httpMethodType);
        }

        String charset = httpMethodProxyRequest.getParams().getUriCharset();
        URI targetURI;
        try {
            targetURI = new URI(targetPath, true, charset);
        } catch (URIException e) {
            // Bugfix #1484
            String newTargetPath = "";
            for (String part : targetPath.split("&")) {
                if (!newTargetPath.equals("")) {
                    newTargetPath += "&";
                }
                String[] pair = part.split("=");
                try {
                    newTargetPath += URLDecoder.decode(pair[0], "UTF-8") + "="
                            + (pair.length > 1 ? URLEncoder.encode(URLDecoder.decode(pair[1], "UTF-8"), "UTF-8")
                                    : "");
                } catch (UnsupportedEncodingException ee) {
                    newTargetPath = targetPath;
                }
            }

            targetURI = new URI(newTargetPath, true, charset);
        }
        httpMethodProxyRequest.setURI(targetURI);

        // Tells the method to automatically handle authentication.
        httpMethodProxyRequest.setDoAuthentication(true);

        HttpState httpState = getHttpState(proxyHttpConnector, context);

        String basicUser = proxyHttpConnector.getAuthUser();
        String basicPassword = proxyHttpConnector.getAuthPassword();
        String givenBasicUser = proxyHttpConnector.getGivenAuthUser();
        String givenBasicPassword = proxyHttpConnector.getGivenAuthPassword();

        // Basic authentication configuration
        String realm = null;
        if (!basicUser.equals("") || (basicUser.equals("") && (givenBasicUser != null))) {
            String userName = ((givenBasicUser == null) ? basicUser : givenBasicUser);
            String userPassword = ((givenBasicPassword == null) ? basicPassword : givenBasicPassword);
            httpState.setCredentials(new AuthScope(targetHost, targetPort, realm),
                    new UsernamePasswordCredentials(userName, userPassword));
            Engine.logEngine.debug("(ReverseProxyServlet) Credentials: " + userName + ":******");
        }

        // Setting basic authentication for proxy
        if (!proxyServer.equals("") && !proxyUser.equals("")) {
            httpState.setProxyCredentials(new AuthScope(proxyServer, proxyPort),
                    new UsernamePasswordCredentials(proxyUser, proxyPassword));
            Engine.logEngine.debug("(ReverseProxyServlet) Proxy credentials: " + proxyUser + ":******");
        }

        // Forward the request headers
        setProxyRequestHeaders(httpServletRequest, httpMethodProxyRequest, proxyHttpConnector);

        // Use the CEMS HttpClient
        HttpClient httpClient = Engine.theApp.httpClient;
        httpMethodProxyRequest.setFollowRedirects(false);

        // Execute the request
        int intProxyResponseCode = httpClient.executeMethod(hostConfiguration, httpMethodProxyRequest,
                httpState);

        // Check if the proxy response is a redirect
        // The following code is adapted from
        // org.tigris.noodle.filters.CheckForRedirect
        // Hooray for open source software
        if (intProxyResponseCode >= HttpServletResponse.SC_MULTIPLE_CHOICES /* 300 */
                && intProxyResponseCode < HttpServletResponse.SC_NOT_MODIFIED /* 304 */) {
            String stringStatusCode = Integer.toString(intProxyResponseCode);
            String stringLocation = httpMethodProxyRequest.getResponseHeader(STRING_LOCATION_HEADER).getValue();
            if (stringLocation == null) {
                throw new ServletException("Received status code: " + stringStatusCode + " but no "
                        + STRING_LOCATION_HEADER + " header was found in the response");
            }
            // Modify the redirect to go to this proxy servlet rather that
            // the
            // proxied host
            String redirect = handleRedirect(stringLocation, baseUrl, proxyHttpConnector);
            httpServletResponse.sendRedirect(redirect);
            Engine.logEngine.debug("(ReverseProxyServlet) Send redirect (" + redirect + ")");
            return;
        } else if (intProxyResponseCode == HttpServletResponse.SC_NOT_MODIFIED) {
            // 304 needs special handling. See:
            // http://www.ics.uci.edu/pub/ietf/http/rfc1945.html#Code304
            // We get a 304 whenever passed an 'If-Modified-Since'
            // header and the data on disk has not changed; server
            // responds w/ a 304 saying I'm not going to send the
            // body because the file has not changed.
            httpServletResponse.setIntHeader(STRING_CONTENT_LENGTH_HEADER_NAME, 0);
            httpServletResponse.setStatus(HttpServletResponse.SC_NOT_MODIFIED);
            Engine.logEngine.debug("(ReverseProxyServlet) NOT MODIFIED (304)");
            return;
        }

        // Pass the response code back to the client
        httpServletResponse.setStatus(intProxyResponseCode);

        // Pass response headers back to the client
        Engine.logEngine.debug("(ReverseProxyServlet) Response headers back to the client:");
        Header[] headerArrayResponse = httpMethodProxyRequest.getResponseHeaders();
        for (Header header : headerArrayResponse) {
            String headerName = header.getName();
            String headerValue = header.getValue();
            if (!headerName.equalsIgnoreCase("Transfer-Encoding")
                    && !headerName.equalsIgnoreCase("Set-Cookie")) {
                httpServletResponse.setHeader(headerName, headerValue);
                Engine.logEngine.debug("   " + headerName + "=" + headerValue);
            }
        }

        String contentType = null;
        Header[] contentTypeHeaders = httpMethodProxyRequest.getResponseHeaders("Content-Type");
        for (Header contentTypeHeader : contentTypeHeaders) {
            contentType = contentTypeHeader.getValue();
            break;
        }

        String pageCharset = "UTF-8";
        if (contentType != null) {
            int iCharset = contentType.indexOf("charset=");
            if (iCharset != -1) {
                pageCharset = contentType.substring(iCharset + "charset=".length()).trim();
            }
            Engine.logEngine.debug("(ReverseProxyServlet) Using charset: " + pageCharset);
        }

        InputStream siteIn = httpMethodProxyRequest.getResponseBodyAsStream();

        // Handle gzipped content
        Header[] contentEncodingHeaders = httpMethodProxyRequest.getResponseHeaders("Content-Encoding");
        boolean bGZip = false, bDeflate = false;
        for (Header contentEncodingHeader : contentEncodingHeaders) {
            HeaderElement[] els = contentEncodingHeader.getElements();
            for (int j = 0; j < els.length; j++) {
                if ("gzip".equals(els[j].getName())) {
                    Engine.logBeans.debug("(ReverseProxyServlet) Decode GZip stream");
                    siteIn = new GZIPInputStream(siteIn);
                    bGZip = true;
                } else if ("deflate".equals(els[j].getName())) {
                    Engine.logBeans.debug("(ReverseProxyServlet) Decode Deflate stream");
                    siteIn = new InflaterInputStream(siteIn, new Inflater(true));
                    bDeflate = true;
                }
            }
        }

        byte[] bytesDataResult;

        ByteArrayOutputStream baos = new ByteArrayOutputStream(2048);

        // String resourceUrl = projectName + targetPath;

        String t = context.statistics.start(EngineStatistics.APPLY_USER_REQUEST);

        try {
            // Read either from the cache, either from the remote server
            // InputStream is = proxyCacheManager.getResource(resourceUrl);
            // if (is != null) {
            // Engine.logEngine.debug("(ReverseProxyServlet) Getting data from cache");
            // siteIn = is;
            // }
            int c = siteIn.read();
            while (c > -1) {
                baos.write(c);
                c = siteIn.read();
            }
            // if (is != null) is.close();
        } finally {
            context.statistics.stop(t, true);
        }

        bytesDataResult = baos.toByteArray();
        baos.close();
        Engine.logEngine.debug("(ReverseProxyServlet) Data retrieved!");

        // if (isDynamicContent(httpServletRequest.getPathInfo(),
        // proxyHttpConnector.getDynamicContentFiles())) {
        Engine.logEngine.debug("(ReverseProxyServlet) Dynamic content");

        bytesDataResult = handleStringReplacements(baseUrl, contentType, pageCharset, proxyHttpConnector,
                bytesDataResult);

        String billingClassName = context.getConnector().getBillingClassName();
        if (billingClassName != null) {
            try {
                Engine.logContext.debug("Billing class name required: " + billingClassName);
                AbstractBiller biller = (AbstractBiller) Class.forName(billingClassName).newInstance();
                Engine.logContext.debug("Executing the biller");
                biller.insertBilling(context);
            } catch (Throwable e) {
                Engine.logContext.warn("Unable to execute the biller (the billing is thus ignored): ["
                        + e.getClass().getName() + "] " + e.getMessage());
            }
        }
        // }
        // else {
        // Engine.logEngine.debug("(ReverseProxyServlet) Static content: " +
        // contentType);
        //            
        // // Determine if the resource has already been cached or not
        // CacheEntry cacheEntry =
        // proxyCacheManager.getCacheEntry(resourceUrl);
        // if (cacheEntry instanceof FileCacheEntry) {
        // FileCacheEntry fileCacheEntry = (FileCacheEntry) cacheEntry;
        // File file = new File(fileCacheEntry.fileName);
        // if (!file.exists())
        // proxyCacheManager.removeCacheEntry(cacheEntry);
        // cacheEntry = null;
        // }
        // if (cacheEntry == null) {
        // bytesDataResult = handleStringReplacements(contentType,
        // proxyHttpConnector, bytesDataResult);
        //
        // if (intProxyResponseCode == 200) {
        // Engine.logEngine.debug("(ReverseProxyServlet) Resource stored: "
        // + resourceUrl);
        // cacheEntry = proxyCacheManager.storeResponse(resourceUrl,
        // bytesDataResult);
        // cacheEntry.contentLength = bytesDataResult.length;
        // cacheEntry.contentType = contentType;
        // Engine.logEngine.debug("(ReverseProxyServlet) Cache entry: " +
        // cacheEntry);
        // }
        // }
        // }

        // Send the content to the client
        if (Engine.logEngine.isDebugEnabled() && MimeType.Html.is(contentType)) {
            Engine.logEngine.debug("Data proxied:\n" + new String(bytesDataResult, pageCharset));
        }

        if (bGZip || bDeflate) {
            baos = new ByteArrayOutputStream();
            OutputStream compressedOutputStream = bGZip ? new GZIPOutputStream(baos)
                    : new DeflaterOutputStream(baos,
                            new Deflater(Deflater.DEFAULT_COMPRESSION | Deflater.DEFAULT_STRATEGY, true));
            compressedOutputStream.write(bytesDataResult);
            compressedOutputStream.close();
            bytesDataResult = baos.toByteArray();
            baos.close();
        }

        httpServletResponse.setContentLength(bytesDataResult.length);
        OutputStream outputStreamClientResponse = httpServletResponse.getOutputStream();
        outputStreamClientResponse.write(bytesDataResult);

        Engine.logEngine.debug("(ReverseProxyServlet) End of document retransmission");
    } catch (Exception e) {
        Engine.logEngine.error("Error while trying to proxy page", e);
        throw new ServletException("Error while trying to proxy page", e);
    }
}

From source file:com.twinsoft.convertigo.beans.connectors.SiteClipperConnector.java

private void doProcessRequest(Shuttle shuttle) throws IOException, ServletException, EngineException {
    shuttle.statisticsTaskID = context.statistics.start(EngineStatistics.GET_DOCUMENT);
    try {/*from www . j a  v a2s  . com*/
        shuttle.sharedScope = context.getSharedScope();

        String domain = shuttle.getRequest(QueryPart.host) + shuttle.getRequest(QueryPart.port);
        Engine.logSiteClipper.trace("(SiteClipperConnector) Prepare the request for the domain " + domain);
        if (!shouldRewrite(domain)) {
            Engine.logSiteClipper.info(
                    "(SiteClipperConnector) The domain " + domain + " is not allowed with this connector");
            shuttle.response.sendError(HttpServletResponse.SC_FORBIDDEN,
                    "The domain " + domain + " is not allowed with this connector");
            return;
        }

        String uri = shuttle.getRequest(QueryPart.uri);

        Engine.logSiteClipper.info("Preparing " + shuttle.request.getMethod() + " " + shuttle.getRequestUrl());

        HttpMethod httpMethod = null;
        XulRecorder xulRecorder = context.getXulRecorder();
        if (xulRecorder != null) {
            httpMethod = shuttle.httpMethod = xulRecorder.getRecord(shuttle.getRequestUrlAndQuery());
        }
        if (httpMethod == null) {
            try {
                switch (shuttle.getRequestHttpMethodType()) {
                case GET:
                    httpMethod = new GetMethod(uri);
                    break;
                case POST:
                    httpMethod = new PostMethod(uri);
                    ((PostMethod) httpMethod)
                            .setRequestEntity(new InputStreamRequestEntity(shuttle.request.getInputStream()));
                    break;
                case PUT:
                    httpMethod = new PutMethod(uri);
                    ((PutMethod) httpMethod)
                            .setRequestEntity(new InputStreamRequestEntity(shuttle.request.getInputStream()));
                    break;
                case DELETE:
                    httpMethod = new DeleteMethod(uri);
                    break;
                case HEAD:
                    httpMethod = new HeadMethod(uri);
                    break;
                case OPTIONS:
                    httpMethod = new OptionsMethod(uri);
                    break;
                case TRACE:
                    httpMethod = new TraceMethod(uri);
                    break;
                default:
                    throw new ServletException(
                            "(SiteClipperConnector) unknown http method " + shuttle.request.getMethod());
                }
                httpMethod.setFollowRedirects(false);
            } catch (Exception e) {
                throw new ServletException(
                        "(SiteClipperConnector) unexpected exception will building the http method : "
                                + e.getMessage());
            }
            shuttle.httpMethod = httpMethod;

            SiteClipperScreenClass screenClass = getCurrentScreenClass();
            Engine.logSiteClipper.info("Request screen class: " + screenClass.getName());

            for (String name : Collections
                    .list(GenericUtils.<Enumeration<String>>cast(shuttle.request.getHeaderNames()))) {
                if (requestHeadersToIgnore.contains(HeaderName.parse(name))) {
                    Engine.logSiteClipper.trace("(SiteClipperConnector) Ignoring request header " + name);
                } else {
                    String value = shuttle.request.getHeader(name);
                    Engine.logSiteClipper
                            .trace("(SiteClipperConnector) Copying request header " + name + "=" + value);
                    shuttle.setRequestCustomHeader(name, value);
                }
            }

            Engine.logSiteClipper.debug("(SiteClipperConnector) applying request rules for the screenclass "
                    + screenClass.getName());
            for (IRequestRule rule : screenClass.getRequestRules()) {
                if (rule.isEnabled()) {
                    Engine.logSiteClipper
                            .trace("(SiteClipperConnector) applying request rule " + rule.getName());
                    rule.fireEvents();
                    boolean done = rule.applyOnRequest(shuttle);
                    Engine.logSiteClipper.debug("(SiteClipperConnector) the request rule " + rule.getName()
                            + " is " + (done ? "well" : "not") + " applied");
                } else {
                    Engine.logSiteClipper
                            .trace("(SiteClipperConnector) skip the disabled request rule " + rule.getName());
                }
            }

            for (Entry<String, String> header : shuttle.requestCustomHeaders.entrySet()) {
                Engine.logSiteClipper.trace("(SiteClipperConnector) Push request header " + header.getKey()
                        + "=" + header.getValue());
                httpMethod.addRequestHeader(header.getKey(), header.getValue());
            }

            String queryString = shuttle.request.getQueryString();

            if (queryString != null) {
                try {
                    // Fake test in order to check query string validity
                    new URI("http://localhost/index?" + queryString, true,
                            httpMethod.getParams().getUriCharset());
                } catch (URIException e) {
                    // Bugfix #2103
                    StringBuffer newQuery = new StringBuffer();
                    for (String part : RegexpUtils.pattern_and.split(queryString)) {
                        String[] pair = RegexpUtils.pattern_equals.split(part, 2);
                        try {
                            newQuery.append('&')
                                    .append(URLEncoder.encode(URLDecoder.decode(pair[0], "UTF-8"), "UTF-8"));
                            if (pair.length > 1) {
                                newQuery.append('=').append(
                                        URLEncoder.encode(URLDecoder.decode(pair[1], "UTF-8"), "UTF-8"));
                            }
                        } catch (UnsupportedEncodingException ee) {
                            Engine.logSiteClipper
                                    .trace("(SiteClipperConnector) failed to encode query part : " + part);
                        }
                    }

                    queryString = newQuery.length() > 0 ? newQuery.substring(1) : newQuery.toString();
                    Engine.logSiteClipper.trace("(SiteClipperConnector) re-encode query : " + queryString);
                }
            }

            Engine.logSiteClipper.debug("(SiteClipperConnector) Copying the query string : " + queryString);
            httpMethod.setQueryString(queryString);

            //            if (context.httpState == null) {
            //               Engine.logSiteClipper.debug("(SiteClipperConnector) Creating new HttpState for context id " + context.contextID);
            //               context.httpState = new HttpState();
            //            } else {
            //               Engine.logSiteClipper.debug("(SiteClipperConnector) Using HttpState of context id " + context.contextID);
            //            }

            getHttpState(shuttle);

            HostConfiguration hostConfiguration = getHostConfiguration(shuttle);

            HttpMethodParams httpMethodParams = httpMethod.getParams();
            httpMethodParams.setBooleanParameter("http.connection.stalecheck", true);
            httpMethodParams.setParameter(HttpMethodParams.RETRY_HANDLER,
                    new DefaultHttpMethodRetryHandler(3, true));

            Engine.logSiteClipper.info("Requesting " + httpMethod.getName() + " "
                    + hostConfiguration.getHostURL() + httpMethod.getURI().toString());

            HttpClient httpClient = context.getHttpClient3(shuttle.getHttpPool());
            HttpUtils.logCurrentHttpConnection(httpClient, hostConfiguration, shuttle.getHttpPool());
            httpClient.executeMethod(hostConfiguration, httpMethod, context.httpState);
        } else {
            Engine.logSiteClipper.info("Retrieve recorded response from Context");
        }

        int status = httpMethod.getStatusCode();

        shuttle.processState = ProcessState.response;

        Engine.logSiteClipper.info("Request terminated with status " + status);
        shuttle.response.setStatus(status);

        if (Engine.isStudioMode() && status == HttpServletResponse.SC_OK
                && shuttle.getResponseMimeType().startsWith("text/")) {
            fireDataChanged(new ConnectorEvent(this, shuttle.getResponseAsString()));
        }

        SiteClipperScreenClass screenClass = getCurrentScreenClass();
        Engine.logSiteClipper.info("Response screen class: " + screenClass.getName());

        if (Engine.isStudioMode()) {
            Engine.theApp.fireObjectDetected(new EngineEvent(screenClass));
        }

        for (Header header : httpMethod.getResponseHeaders()) {
            String name = header.getName();
            if (responseHeadersToIgnore.contains(HeaderName.parse(name))) {
                Engine.logSiteClipper.trace("(SiteClipperConnector) Ignoring response header " + name);
            } else {
                String value = header.getValue();
                Engine.logSiteClipper
                        .trace("(SiteClipperConnector) Copying response header " + name + "=" + value);
                shuttle.responseCustomHeaders.put(name, value);
            }
        }

        Engine.logSiteClipper.debug(
                "(SiteClipperConnector) applying response rules for the screenclass " + screenClass.getName());
        for (IResponseRule rule : screenClass.getResponseRules()) {
            if (rule.isEnabled()) {
                Engine.logSiteClipper.trace("(SiteClipperConnector) applying response rule " + rule.getName());
                rule.fireEvents();
                boolean done = rule.applyOnResponse(shuttle);
                Engine.logSiteClipper.debug("(SiteClipperConnector) the response rule " + rule.getName()
                        + " is " + (done ? "well" : "not") + " applied");
            } else {
                Engine.logSiteClipper
                        .trace("(SiteClipperConnector) skip the disabled response rule " + rule.getName());
            }
        }

        for (Entry<String, String> header : shuttle.responseCustomHeaders.entrySet()) {
            Engine.logSiteClipper.trace(
                    "(SiteClipperConnector) Push request header " + header.getKey() + "=" + header.getValue());
            shuttle.response.addHeader(header.getKey(), header.getValue());
        }

        if (shuttle.postInstructions != null) {
            JSONArray instructions = new JSONArray();
            for (IClientInstruction instruction : shuttle.postInstructions) {
                try {
                    instructions.put(instruction.getInstruction());
                } catch (JSONException e) {
                    Engine.logSiteClipper.error(
                            "(SiteClipperConnector) Failed to add a post instruction due to a JSONException",
                            e);
                }
            }
            String codeToInject = "<script>C8O_postInstructions = " + instructions.toString() + "</script>\n"
                    + "<script src=\"" + shuttle.getRequest(QueryPart.full_convertigo_path)
                    + "/scripts/jquery.min.js\"></script>\n" + "<script src=\""
                    + shuttle.getRequest(QueryPart.full_convertigo_path)
                    + "/scripts/siteclipper.js\"></script>\n";

            String content = shuttle.getResponseAsString();
            Matcher matcher = HtmlLocation.head_top.matcher(content);
            String newContent = RegexpUtils.inject(matcher, codeToInject);
            if (newContent == null) {
                matcher = HtmlLocation.body_top.matcher(content);
                newContent = RegexpUtils.inject(matcher, codeToInject);
            }
            if (newContent != null) {
                shuttle.setResponseAsString(newContent);
            } else {
                Engine.logSiteClipper.info(
                        "(SiteClipperConnector) Failed to find a head or body tag in the response content");
                Engine.logSiteClipper.trace("(SiteClipperConnector) Response content : \"" + content + "\"");
            }
        }

        long nbBytes = 0L;
        if (shuttle.responseAsString != null
                && shuttle.responseAsString.hashCode() != shuttle.responseAsStringOriginal.hashCode()) {
            OutputStream os = shuttle.response.getOutputStream();
            switch (shuttle.getResponseContentEncoding()) {
            case gzip:
                os = new GZIPOutputStream(os);
                break;
            case deflate:
                os = new DeflaterOutputStream(os,
                        new Deflater(Deflater.DEFAULT_COMPRESSION | Deflater.DEFAULT_STRATEGY, true));
                break;
            default:
                break;
            }
            nbBytes = shuttle.responseAsByte.length;
            IOUtils.write(shuttle.responseAsString, os, shuttle.getResponseCharset());
            os.close();
        } else {
            InputStream is = (shuttle.responseAsByte == null) ? httpMethod.getResponseBodyAsStream()
                    : new ByteArrayInputStream(shuttle.responseAsByte);
            if (is != null) {
                nbBytes = 0;
                OutputStream os = shuttle.response.getOutputStream();
                int read = is.read();
                while (read >= 0) {
                    os.write(read);
                    os.flush();
                    read = is.read();
                    nbBytes++;
                }
                is.close();
                //               nbBytes = IOUtils.copyLarge(is, shuttle.response.getOutputStream());
                Engine.logSiteClipper
                        .trace("(SiteClipperConnector) Response body copyied (" + nbBytes + " bytes)");
            }
        }
        shuttle.response.getOutputStream().close();

        shuttle.score = getScore(nbBytes);
        Engine.logSiteClipper
                .debug("(SiteClipperConnector) Request terminated with a score of " + shuttle.score);
    } finally {
        long duration = context.statistics.stop(shuttle.statisticsTaskID);
        if (context.requestedObject != null) {
            try {
                Engine.theApp.billingManager.insertBilling(context, Long.valueOf(duration),
                        Long.valueOf(shuttle.score));
            } catch (Exception e) {
                Engine.logContext.warn("Unable to insert billing ticket (the billing is thus ignored): ["
                        + e.getClass().getName() + "] " + e.getMessage());
            }
        }
    }
}