Example usage for com.liferay.portal.kernel.servlet HttpHeaders IF_MODIFIED_SINCE

Introduction

In this page you can find the example usage for com.liferay.portal.kernel.servlet HttpHeaders IF_MODIFIED_SINCE.

Prototype

String IF_MODIFIED_SINCE

To view the source code for com.liferay.portal.kernel.servlet HttpHeaders IF_MODIFIED_SINCE.

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Usage

From source file:com.liferay.faces.bridge.ext.filter.internal.LiferayPortletRequest.java

License:Open Source License

public LiferayPortletRequest(PortletRequest portletRequest, String responseNamespace,
        PortletConfig portletConfig) {/*from w ww.j  a  v a2  s .  c  om*/

    if (portletRequest != null) {

        while (portletRequest instanceof PortletRequestWrapper) {
            PortletRequestWrapper portletRequestWrapper = (PortletRequestWrapper) portletRequest;
            portletRequest = portletRequestWrapper.getRequest();
        }
    }

    this.wrappedPortletRequest = portletRequest;

    this.distinctRequestScopedManagedBeans = LiferayPortletConfigParam.DistinctRequestScopedManagedBeans
            .getBooleanValue(portletConfig);

    try {
        Method method = wrappedPortletRequest.getClass().getMethod(METHOD_NAME_GET_PORTLET, (Class[]) null);

        this.portlet = (Portlet) method.invoke(wrappedPortletRequest, (Object[]) null);
    } catch (Exception e) {
        logger.error(e.getMessage(), e);
    }

    try {
        Method method = wrappedPortletRequest.getClass()
                .getMethod(METHOD_NAME_GET_ORIGINAL_HTTP_SERVLET_REQUEST, (Class[]) null);
        this.liferayHttpServletRequest = new LiferayHttpServletRequest(
                (HttpServletRequest) method.invoke(wrappedPortletRequest, (Object[]) null));
    } catch (Exception e) {
        logger.error(e.getMessage(), e);
    }

    this.propertyNameList = new ArrayList<String>();

    boolean foundIfModifiedSince = false;
    boolean foundUserAgent = false;
    Enumeration<String> propertyNames = portletRequest.getPropertyNames();

    while (propertyNames.hasMoreElements() && !foundUserAgent) {
        String propertyName = propertyNames.nextElement();
        propertyNameList.add(propertyName);

        if (HttpHeaders.IF_MODIFIED_SINCE.equals(propertyName)) {
            foundIfModifiedSince = true;
        } else if (HttpHeaders.USER_AGENT.equals(propertyName)) {
            foundUserAgent = true;
        }
    }

    if (!foundIfModifiedSince) {

        Enumeration<String> headerNames = liferayHttpServletRequest.getHeaderNames();

        while (headerNames.hasMoreElements() && !foundIfModifiedSince) {
            String headerName = headerNames.nextElement();
            foundIfModifiedSince = (HttpHeaders.IF_MODIFIED_SINCE.equalsIgnoreCase(headerName));
        }

        if (foundIfModifiedSince) {
            propertyNameList.add(HttpHeaders.IF_MODIFIED_SINCE);
        }
    }

    if (!foundUserAgent) {

        Enumeration<String> headerNames = liferayHttpServletRequest.getHeaderNames();

        while (headerNames.hasMoreElements() && !foundUserAgent) {
            String headerName = headerNames.nextElement();
            foundUserAgent = (HttpHeaders.USER_AGENT.equalsIgnoreCase(headerName));
        }

        if (foundUserAgent) {
            propertyNameList.add(HttpHeaders.USER_AGENT);
        }
    }

    this.distinctRequestScopedManagedBeans = LiferayPortletConfigParam.DistinctRequestScopedManagedBeans
            .getBooleanValue(portletConfig);
    this.responseNamespace = responseNamespace;
}

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From source file:com.liferay.faces.bridge.ext.filter.internal.LiferayPortletRequest.java

License:Open Source License

public Enumeration<String> getProperties(String name) {

    Enumeration<String> properties = wrappedPortletRequest.getProperties(name);

    if (!properties.hasMoreElements()
            && (HttpHeaders.USER_AGENT.equals(name) || HttpHeaders.IF_MODIFIED_SINCE.equals(name))) {
        properties = liferayHttpServletRequest.getHeaders(name);
    }/* www . j a va 2  s.  c o m*/

    return properties;
}

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From source file:com.liferay.httpservice.servlet.ResourceServlet.java

License:Open Source License

@Override
public void service(HttpServletRequest request, HttpServletResponse response)
        throws IOException, ServletException {

    try {//from   w  w w  .j a va  2s  . c o  m
        String requestURI = getRequestURI(request);

        int aliasIndex = requestURI.indexOf(_alias);

        if (aliasIndex == 0) {
            requestURI = requestURI.substring(_alias.length());
        }

        if (Validator.isNotNull(_name)) {
            requestURI = _name.concat(requestURI);
        }

        URL url = _httpContext.getResource(requestURI);

        if (url == null) {
            response.setStatus(HttpServletResponse.SC_NOT_FOUND);

            return;
        }

        URLConnection urlConnection = url.openConnection();

        long lastModified = urlConnection.getLastModified();

        if (lastModified > 0) {
            long ifModifiedSince = request.getDateHeader(HttpHeaders.IF_MODIFIED_SINCE);

            if ((ifModifiedSince > 0) && (ifModifiedSince == lastModified)) {

                response.setContentLength(0);

                response.setDateHeader(HttpHeaders.LAST_MODIFIED, lastModified);

                String ifNoneMatch = request.getHeader(HttpHeaders.IF_NONE_MATCH);

                if (Validator.isNotNull(ifNoneMatch) && !ifNoneMatch.equals('0')) {

                    response.setHeader(HttpHeaders.ETAG, ifNoneMatch);
                }

                response.setStatus(HttpServletResponse.SC_NOT_MODIFIED);

                return;
            }
        }

        if (lastModified > 0) {
            response.setDateHeader(HttpHeaders.LAST_MODIFIED, lastModified);
        }

        String fileName = getRequestURI(request);

        int slashIndex = fileName.lastIndexOf(StringPool.SLASH);

        if (slashIndex != -1) {
            fileName = fileName.substring(slashIndex + 1);
        }

        String contentType = _httpContext.getMimeType(fileName);

        if (isSupportsRangeHeader(contentType)) {
            sendFileWithRangeHeader(request, response, fileName, urlConnection.getInputStream(),
                    urlConnection.getContentLength(), contentType);
        } else {
            ServletResponseUtil.sendFile(request, response, fileName, urlConnection.getInputStream(),
                    urlConnection.getContentLength(), contentType);
        }
    } catch (Exception e) {
        PortalUtil.sendError(HttpServletResponse.SC_NOT_FOUND, e, request, response);
    }
}

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From source file:com.liferay.wsrp.servlet.ProxyServlet.java

License:Open Source License

protected void proxyURL(HttpServletRequest request, HttpServletResponse response, URL url) throws Exception {

    URLConnection urlConnection = url.openConnection();

    urlConnection.setIfModifiedSince(request.getDateHeader(HttpHeaders.IF_MODIFIED_SINCE));

    HttpSession session = request.getSession();

    String cookie = (String) session.getAttribute(WebKeys.COOKIE);

    if (Validator.isNotNull(cookie)) {
        urlConnection.setRequestProperty(HttpHeaders.COOKIE, cookie);
    }/*from   ww  w. ja v a 2s.  com*/

    boolean useCaches = true;

    Enumeration<String> enumeration = request.getHeaderNames();

    while (enumeration.hasMoreElements()) {
        String headerName = enumeration.nextElement();

        if (StringUtil.equalsIgnoreCase(headerName, HttpHeaders.COOKIE)
                || StringUtil.equalsIgnoreCase(headerName, HttpHeaders.IF_MODIFIED_SINCE)) {

            continue;
        }

        String headerValue = request.getHeader(headerName);

        if (Validator.isNotNull(headerValue)) {
            if (StringUtil.equalsIgnoreCase(headerName, HttpHeaders.CACHE_CONTROL)
                    && headerValue.contains(HttpHeaders.CACHE_CONTROL_NO_CACHE_VALUE)) {

                useCaches = false;
            }

            urlConnection.setRequestProperty(headerName, headerValue);
        }
    }

    urlConnection.setUseCaches(useCaches);

    urlConnection.connect();

    response.setContentLength(urlConnection.getContentLength());
    response.setContentType(urlConnection.getContentType());

    Map<String, List<String>> headers = urlConnection.getHeaderFields();

    for (Map.Entry<String, List<String>> entry : headers.entrySet()) {
        String headerName = entry.getKey();

        if (Validator.isNotNull(headerName) && !response.containsHeader(headerName)) {

            response.setHeader(headerName, urlConnection.getHeaderField(headerName));
        }
    }

    if (urlConnection instanceof HttpURLConnection) {
        HttpURLConnection httpURLConnection = (HttpURLConnection) urlConnection;

        response.setStatus(httpURLConnection.getResponseCode());
    }

    ServletResponseUtil.write(response, urlConnection.getInputStream());
}

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