Example usage for javax.servlet.http HttpServletRequest getDateHeader

Introduction

In this page you can find the example usage for javax.servlet.http HttpServletRequest getDateHeader.

Prototype

public long getDateHeader(String name);

Source Link

Document

Returns the value of the specified request header as a long value that represents a Date object.

Usage

From source file:com.meltmedia.cadmium.servlets.FileServletTest.java

public static HttpServletRequest mockGetWithIfModifiedSince(String pathInfo, Long lastModified) {
    HttpServletRequest request = mockGet(pathInfo);
    when(request.getDateHeader(IF_MODIFIED_SINCE_HEADER)).thenReturn(lastModified);
    when(request.getHeader(anyString())).thenReturn(null);
    return request;
}

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From source file:org.ambraproject.wombat.util.HttpMessageUtil.java

/**
 * Checks to see if we should serve the contents of the requested object, or just return a 304 response with no body,
 * based on cache-related request headers.
 *
 * @param request      HttpServletRequest we will check for cache headers
 * @param lastModified last modified timestamp of the actual resource on the server
 * @param etag         etag generated from the actual resource on the server
 * @return true if we should serve the bytes of the resource, false if we should return 304.
 *///from   w  ww.ja  v  a 2 s.  c om
public static boolean checkIfModifiedSince(HttpServletRequest request, Long lastModified, String etag) {

    // Let the Etag-based header take precedence over If-Modified-Since.
    String etagFromRequest = request.getHeader("If-None-Match");
    if (etag != null && etagFromRequest != null) {
        return !etagFromRequest.equals(etag);
    } else {
        return lastModified == null || lastModified > request.getDateHeader("If-Modified-Since");
    }
}

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From source file:net.siegmar.japtproxy.JaptProxy.java

/**
 * Analyzes (validates) request url and extract required information.
 *
 * @param request the object to populate with extracted information.
 * @throws net.siegmar.japtproxy.exception.InvalidRequestException is thrown if requested url is invalid.
 *//* www  .ja v  a2  s  .  c om*/
private static RequestedData buildRequestedData(final HttpServletRequest request,
        final Configuration configuration) throws InvalidRequestException {
    final String resource = request.getPathInfo();
    final RequestedData requestedData = new RequestedData();
    requestedData.setRequestedResource(resource);
    requestedData.setRequestModifiedSince(request.getDateHeader(HttpHeaderConstants.IF_MODIFIED_SINCE));

    requestedData.setUserAgent(request.getHeader(HttpHeaderConstants.USER_AGENT));
    requestedData.setUrl(getURL(request, configuration));
    requestedData.setHostUrl(getURL(request, true, configuration));
    requestedData.setScheme(request.getScheme());
    requestedData.setServerName(request.getServerName());
    requestedData.setServerPort(request.getServerPort());

    final String requestedResource = requestedData.getRequestedResource();

    // Reject if no requested resource is specified
    if (requestedResource == null) {
        throw new InvalidRequestException("Rejected request because it doesn't contain a resource request");
    }

    // Reject requests that contain /../ for security reason
    if (requestedResource.contains("/../")) {
        throw new InvalidRequestException(
                "Rejected request '" + requestedResource + "' because it contains /../");
    }

    // Reject requests that doesn't contain a backend
    final int endIdx = requestedResource.indexOf('/', 1);
    if (endIdx <= 1) {
        throw new InvalidRequestException(
                "Rejected request '" + requestedResource + "' because it doesn't specify a backend");
    }

    // Reject requests that doesn't contain a target resource
    if (requestedResource.length() == endIdx + 1) {
        throw new InvalidRequestException("Rejected request '" + requestedResource
                + "' because it doesn't specify a target " + "resource");
    }

    // Extract the backend and target resource parts of the request
    final String requestedBackend = requestedResource.substring(1, endIdx);
    final String requestedTarget = requestedResource.substring(endIdx);

    // Set requestedData
    requestedData.setRequestedTarget(requestedTarget);
    requestedData.setRequestedBackend(requestedBackend);

    return requestedData;
}

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From source file:com.meltmedia.cadmium.servlets.FileServletTest.java

public static HttpServletRequest mockGet(String pathInfo) {
    HttpServletRequest request = mock(HttpServletRequest.class);
    when(request.getMethod()).thenReturn(GET_METHOD);
    when(request.getRequestURI()).thenReturn(pathInfo);
    when(request.getDateHeader(anyString())).thenReturn(new Long(-1));
    when(request.getHeader(anyString())).thenReturn(null);
    return request;
}

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From source file:com.meltmedia.cadmium.servlets.FileServletTest.java

public static HttpServletRequest mockGetWithGzip(String pathInfo) {
    HttpServletRequest request = mock(HttpServletRequest.class);
    when(request.getMethod()).thenReturn(GET_METHOD);
    when(request.getRequestURI()).thenReturn(pathInfo);
    when(request.getDateHeader(anyString())).thenReturn(new Long(-1));
    when(request.getHeader(ACCEPT_ENCODING_HEADER)).thenReturn("gzip");
    return request;
}

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From source file:com.meltmedia.cadmium.servlets.FileServletTest.java

public static HttpServletRequest mockGetWithoutGzip(String pathInfo) {
    HttpServletRequest request = mock(HttpServletRequest.class);
    when(request.getMethod()).thenReturn(GET_METHOD);
    when(request.getRequestURI()).thenReturn(pathInfo);
    when(request.getDateHeader(anyString())).thenReturn(new Long(-1));
    when(request.getHeader(ACCEPT_ENCODING_HEADER)).thenReturn("gzip;q=0");
    return request;
}

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From source file:org.apache.solr.servlet.cache.HttpCacheHeaderUtil.java

/**
 * Check for modify time related conditional headers and set status 
 * /*www  . j  a  v  a  2 s .c o  m*/
 * @return true if no request processing is necessary and HTTP response status has been set, false otherwise.
 * @throws IOException
 */
public static boolean checkLastModValidators(final HttpServletRequest req, final HttpServletResponse resp,
        final long lastMod) throws IOException {

    try {
        // First check for If-Modified-Since because this is the common
        // used header by HTTP clients
        final long modifiedSince = req.getDateHeader("If-Modified-Since");
        if (modifiedSince != -1L && lastMod <= modifiedSince) {
            // Send a "not-modified"
            sendNotModified(resp);
            return true;
        }

        final long unmodifiedSince = req.getDateHeader("If-Unmodified-Since");
        if (unmodifiedSince != -1L && lastMod > unmodifiedSince) {
            // Send a "precondition failed"
            sendPreconditionFailed(resp);
            return true;
        }
    } catch (IllegalArgumentException iae) {
        // one of our date headers was not formated properly, ignore it
        /* NOOP */
    }
    return false;
}

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From source file:ch.entwine.weblounge.common.content.ResourceUtils.java

/**
 * Returns <code>true</code> if the resource either is more recent than the
 * cached version on the client side or the request does not contain caching
 * information./*  w  ww  . j a va2  s  .  com*/
 * <p>
 * The calculation is made based on the availability of the
 * <code>If-Modified-Since</code> header. Use
 * {@link #hasChanged(HttpServletRequest, long)} to also take the
 * <code>If-None-Match</code> header into account.
 * 
 * @param request
 *          the client request
 * @param date
 *          the date
 * @return <code>true</code> if the resource is more recent than the version
 *         that is cached at the client.
 * @throws IllegalArgumentException
 *           if the <code>If-Modified-Since</code> header cannot be converted
 *           to a date.
 */
public static boolean isModified(HttpServletRequest request, long date) throws IllegalArgumentException {
    if (request.getHeader("If-Modified-Since") != null) {
        try {
            long cachedModificationDate = request.getDateHeader("If-Modified-Since");
            return cachedModificationDate < date;
        } catch (IllegalArgumentException e) {
            logger.debug("Client sent malformed 'If-Modified-Since' header: {}");
        }
    }
    return true;
}

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From source file:org.opencms.flex.CmsFlexController.java

/**
 * Checks if the request has the "If-Modified-Since" header set, and if so,
 * if the header date value is equal to the provided last modification date.<p>
 * /*from  ww  w  . j a va 2 s. co  m*/
 * @param req the request to set the "If-Modified-Since" date header from
 * @param dateLastModified the date to compare the header with
 *  
 * @return <code>true</code> if the header is set and the header date is equal to the provided date
 */
public static boolean isNotModifiedSince(HttpServletRequest req, long dateLastModified) {

    // check if the request contains a last modified header
    try {
        long lastModifiedHeader = req.getDateHeader(CmsRequestUtil.HEADER_IF_MODIFIED_SINCE);
        // if last modified header is set (> -1), compare it to the requested resource                           
        return ((lastModifiedHeader > -1) && (((dateLastModified / 1000) * 1000) == lastModifiedHeader));
    } catch (Exception ex) {
        // some clients (e.g. User-Agent: BlackBerry7290/4.1.0 Profile/MIDP-2.0 Configuration/CLDC-1.1 VendorID/111)
        // send an invalid "If-Modified-Since" header (e.g. in german locale) 
        // which breaks with http://www.w3.org/Protocols/rfc2616/rfc2616-sec3.html
        // this has to be caught because the subsequent request for the 500 error handler 
        // would run into the same exception. 
        LOG.warn(Messages.get().getBundle().key(Messages.ERR_HEADER_IFMODIFIEDSINCE_FORMAT_3,
                new Object[] { CmsRequestUtil.HEADER_IF_MODIFIED_SINCE,
                        req.getHeader(CmsRequestUtil.HEADER_USER_AGENT),
                        req.getHeader(CmsRequestUtil.HEADER_IF_MODIFIED_SINCE) }));
    }
    return false;
}

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From source file:org.olat.core.gui.media.ServletUtil.java

/**
 * @param httpReq//from  w  ww  .  j a  v a2  s  . c om
 * @param httpResp
 * @param mr
 */
public static void serveResource(HttpServletRequest httpReq, HttpServletResponse httpResp, MediaResource mr) {
    boolean debug = log.isDebug();

    try {
        Long lastModified = mr.getLastModified();
        if (lastModified != null) {
            // give browser a chance to cache images
            long ifModifiedSince = httpReq.getDateHeader("If-Modified-Since");
            // TODO: if no such header, what is the return value
            long lastMod = lastModified.longValue();
            if (ifModifiedSince >= (lastMod / 1000L) * 1000L) {
                httpResp.setStatus(HttpServletResponse.SC_NOT_MODIFIED);
                return;
            }
            httpResp.setDateHeader("Last-Modified", lastModified.longValue());
        }

        if (isFlashPseudoStreaming(httpReq, mr)) {
            httpResp.setContentType("video/x-flv");
            pseudoStreamFlashResource(httpReq, httpResp, mr);
        } else {
            String mime = mr.getContentType();
            if (mime != null) {
                httpResp.setContentType(mime);
            }
            serveFullResource(httpReq, httpResp, mr);
        }

        // else there is no stream, but probably just headers
        // like e.g. in case of a 302 http-redirect
    } catch (Exception e) {
        if (debug) {
            log.warn("client browser abort when serving media resource", e);
        }
    } finally {
        try {
            mr.release();
        } catch (Exception e) {
            //we did our best here to clean up
        }
    }
}

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