Example usage for javax.servlet.http HttpServletResponse setDateHeader

List of usage examples for javax.servlet.http HttpServletResponse setDateHeader

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  6. setDateHeader

Introduction

In this page you can find the example usage for javax.servlet.http HttpServletResponse setDateHeader.

Prototype

public void setDateHeader(String name, long date);

Source Link

Document

Sets a response header with the given name and date-value.

Usage

From source file:io.cfp.auth.MainCtrl.java

@RequestMapping("/")
public String main(HttpServletResponse response, @CookieValue(required = false) String token,
        @RequestParam(required = false, value = "target") String targetParam,
        @CookieValue(required = false) String returnTo,
        @RequestHeader(required = false, value = REFERER) String referer) {
    response.setHeader(CACHE_CONTROL, "no-cache,no-store,must-revalidate");
    response.setHeader(PRAGMA, "no-cache");
    response.setDateHeader(EXPIRES, 0);

    String target = "http://www.cfp.io";
    if (targetParam != null) {
        target = targetParam;/*w  w  w  .  j ava2s.  c  o m*/
    } else if (returnTo != null) {
        target = returnTo;
    } else if (referer != null) {
        target = referer;
    }

    response.addCookie(new Cookie("returnTo", target));

    if (token == null || !tokenSrv.isValid(token)) {
        return "login";
    }

    // token is valid
    return "redirect:" + target;
}

From source file:org.openxdata.server.servlet.WMDownloadServlet.java

@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    try {// w w  w .j a v  a2  s  .  c o  m
        String action = request.getParameter(OpenXDataConstants.REQUEST_PARAMETER_ACTION);

        response.setHeader("Cache-Control", "no-cache");
        response.setHeader("Pragma", "no-cache");
        response.setDateHeader("Expires", -1);
        response.setHeader("Cache-Control", "no-store");
        response.setContentType(OpenXDataConstants.HTTP_HEADER_CONTENT_TYPE_XML);

        if (action == null) {
            new FormsServer(formDownloadService).processConnection(request.getInputStream(),
                    response.getOutputStream());
        } else {

            if (OpenXDataConstants.ACTION_DOWNLOAD_STUDIES.equalsIgnoreCase(action)) {
                downloadStudies(response);
            } else if (OpenXDataConstants.REQUEST_ACTION_DOWNLOAD_FORMS.equalsIgnoreCase(action)) {
                String studyId = request.getParameter("studyid");
                if (studyId != null && studyId.length() > 0) {
                    downloadForms(response, Integer.parseInt(studyId));
                }
            } else if (OpenXDataConstants.REQUEST_ACTION_UPLOAD_DATA.equalsIgnoreCase(action)) {
                // do nothing???
            }
        }
    } catch (Exception ex) {
        ex.printStackTrace();
    }
}

From source file:org.artificer.ui.server.servlets.AbstractDownloadServlet.java

/**
 * Do download content.//w  w  w  . j  a v  a 2  s .  co m
 *
 * @param content
 *            the content
 * @param contentType
 *            the content type
 * @param disposition
 *            the disposition
 * @param httpResponse
 *            the http response
 * @throws IOException
 *             Signals that an I/O exception has occurred.
 */
protected void doDownloadContent(InputStream content, String contentType, String disposition,
        HttpServletResponse httpResponse) throws IOException {
    if (StringUtils.isNotBlank(disposition)) {
        httpResponse.setHeader("Content-Disposition", disposition);
    }
    if (StringUtils.isNotBlank(contentType)) {
        httpResponse.setHeader("Content-Type", contentType);
    }

    // Make sure the browser doesn't cache it
    Date now = new Date();
    httpResponse.setDateHeader("Date", now.getTime());
    httpResponse.setDateHeader("Expires", now.getTime() - 86400000L);
    httpResponse.setHeader("Pragma", "no-cache");
    httpResponse.setHeader("Cache-control", "no-cache, no-store, must-revalidate");
    try {
        IOUtils.copy(content, httpResponse.getOutputStream());
    } finally {
        IOUtils.closeQuietly(content);
    }
}

From source file:fi.aluesarjat.prototype.AreasServlet.java

@Override
public void service(ServletRequest req, ServletResponse res) throws ServletException, IOException {
    HttpServletRequest request = (HttpServletRequest) req;
    HttpServletResponse response = (HttpServletResponse) res;

    long ifModifiedSince = request.getDateHeader("If-Modified-Since");
    if (ifModifiedSince >= LAST_MODIFIED) {
        response.setStatus(HttpServletResponse.SC_NOT_MODIFIED);
        return;/*from w  w w .java 2  s.  co m*/
    }

    response.setContentType("application/json");
    response.setCharacterEncoding("UTF-8");
    response.setDateHeader("Last-Modified", System.currentTimeMillis());
    response.setHeader("Cache-Control", "max-age=86400");

    String level = request.getParameter("level");
    String content;
    if (level == null) {
        content = areas;
    } else if ("1".equals(level)) {
        content = areas1;
    } else if ("2".equals(level)) {
        content = areas2;
    } else if ("3".equals(level)) {
        content = areas3;
    } else if ("4".equals(level)) {
        content = areas4;
    } else {
        throw new IllegalArgumentException("Illegal level " + level);
    }
    response.getWriter().append(content);
    response.getWriter().flush();

}

From source file:org.ambraproject.cas.filter.GetGuidReturnEmailFilter.java

/**
 * For the HttpServletRequest Parameter <em>guid</em>, query the user database for that
 *   user's Email Address, write that Email Address to the HttpServletResponse, and then exit.
 * <p/>/*from   w w  w.  j a  va2  s .  c  om*/
 * Returns <strong>only</strong> the user's Email Address.
 * <p/>
 * <strong>Caveat</strong>: Does <strong>not</strong> call <em>FilterChain.doFilter(...)</em>,
 *   but rather simply writes the String (which it hopes is the Email Address) to the Response
 *   and exits.
 *
 * @param request The incoming HttpServletRequest from which the Parameter <em>guid</em> is read
 * @param response The HttpServletResponse to which the results String is written
 * @param filterChain Passed in, but not used;
 *   <em>FilterChain.doFilter(...)</em> is <strong>never called</strong>.
 * @throws IOException Unlikely to be thrown except for an infrastructure failure
 * @throws ServletException Potentially thrown by interactions with <em>request</em>
 *   and <em>response</em>, but never explicitly raised in this method
 */
public void doFilter(final ServletRequest request, final ServletResponse response,
        final FilterChain filterChain) throws IOException, ServletException {

    HttpServletResponse httpResponse = (HttpServletResponse) response;

    if (log.isDebugEnabled()) {
        log.debug("Received the guid parameter: " + request.getParameter("guid"));
    }

    httpResponse.setHeader("Pragma", "no-cache");
    httpResponse.setHeader("Cache-Control", "no-store");
    httpResponse.setDateHeader("Expires", -1);

    final PrintWriter writer = response.getWriter();
    try {
        String emailFromGuid = databaseService.getEmailAddressFromGuid(request.getParameter("guid"));
        if (log.isDebugEnabled()) {
            log.debug("Now passing back the email address: " + emailFromGuid);
        }

        if (emailFromGuid != null) {
            writer.write(emailFromGuid);
        } else {
            writer.write(
                    "Unable to lookup email address from the CAS server. Please contact the system administrator.");
        }
    } catch (Exception e) {
        log.error("Unable to query an email address or to write that email address to ServletResponse."
                + "  Attempted to query an email address for the guid = " + request.getParameter("guid"), e);
        //  TODO: Replace this with some clever logic.  This is NOT something to show to the user.
        writer.write("fake_guid_returned_from_cas");
    }

    // This next command is somewhat unfortunate.  A Filter should always invoke "doFilter(...)" at this point, but doing so can break this fragile email lookup.
    //   A typical failure mode is to see the login page in the middle of the Edit User Profile page, where the user's Email Address should be.
    // The core issue is that one of the other Filters may require authentication, so it calls the "/login" URL and the default behavior
    //   for that URL is to send the user to the Login page.  Ambra is querying for a single String (the user's email address), so it takes the String
    //   (which might be the entire Login page) and shows it to the user.
    // It is, therefore, recommended that Ambra acquire its users' email addresses in a different manner.
    return;
    // filterChain.doFilter(httpRequest, response);
}

From source file:eu.europeana.corelib.europeanastatic.controllers.ImageController.java

private void setImageCacheControlHeaders(HttpServletResponse response) {
    long now = System.currentTimeMillis();
    response.addHeader("Cache-Control", "max-age=" + CACHE_DURATION_IN_SECOND);
    response.addHeader("Cache-Control", "must-revalidate"); //optional
    response.setDateHeader("Last-Modified", now);
    response.setDateHeader("Expires", now + CACHE_DURATION_IN_SECOND * 1000);
}

From source file:org.opencms.frontend.templateone.form.CmsCaptchaField.java

/**
 * Writes a Captcha JPEG image to the servlet response output stream.
 * <p>/*  ww  w .j  a  v a  2  s . c o  m*/
 * 
 * @param cms an initialized Cms JSP action element
 * @throws IOException if something goes wrong
 */
public void writeCaptchaImage(CmsJspActionElement cms) throws IOException {

    ByteArrayOutputStream captchaImageOutput = new ByteArrayOutputStream();
    ServletOutputStream out = null;
    BufferedImage captchaImage = null;
    int maxTries = 10;
    do {
        try {

            maxTries--;
            String sessionId = cms.getRequest().getSession().getId();
            Locale locale = cms.getRequestContext().getLocale();

            captchaImage = CmsCaptchaServiceCache.getSharedInstance()
                    .getCaptchaService(m_captchaSettings, cms.getCmsObject())
                    .getImageChallengeForID(sessionId, locale);
        } catch (CaptchaException cex) {
            if (LOG.isErrorEnabled()) {
                LOG.error(cex);
                LOG.error(Messages.get().getBundle().key(Messages.LOG_ERR_CAPTCHA_CONFIG_IMAGE_SIZE_2,
                        new Object[] { m_captchaSettings.getPresetPath(), new Integer(maxTries) }));
            }
            m_captchaSettings.setImageHeight(m_captchaSettings.getImageHeight() + 40);
            m_captchaSettings.setImageWidth(m_captchaSettings.getImageWidth() + 80);
        }
    } while (captchaImage == null && maxTries > 0);
    try {

        ImageIO.write(captchaImage, "jpg", captchaImageOutput);
        CmsFlexController controller = CmsFlexController.getController(cms.getRequest());
        HttpServletResponse response = controller.getTopResponse();
        response.setHeader("Cache-Control", "no-store");
        response.setHeader("Pragma", "no-cache");
        response.setDateHeader("Expires", 0);
        response.setContentType("image/jpeg");

        out = cms.getResponse().getOutputStream();
        out.write(captchaImageOutput.toByteArray());
        out.flush();

    } catch (Exception e) {

        if (LOG.isErrorEnabled()) {
            LOG.error(e.getLocalizedMessage(), e);
        }

        cms.getResponse().sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
    } finally {

        try {
            if (out != null) {
                out.close();
            }
        } catch (Throwable t) {
            // intentionally left blank
        }
    }
}

From source file:mx.com.quadrum.contratos.controller.busquedas.MuestraPdf.java

@RequestMapping(value = "muestraPdf/{idContrato}/{idEmpleado}", method = RequestMethod.GET)
public void muestraPdf(@PathVariable("idContrato") Integer idContrato,
        @PathVariable("idEmpleado") Integer idEmpleado, HttpSession session, HttpServletRequest request,
        HttpServletResponse response) {

    if (session.getAttribute(USUARIO) == null && session.getAttribute(CLIENTE) == null) {
        return;//from  w ww .  ja v a2s . co  m
    }
    Contrato contrato = contratoService.buscarPorId(idContrato);
    response.setContentType("application/pdf");

    response.setHeader("Cache-Control", "no-cache");
    response.setHeader("Pragma", "no-cache");
    response.setDateHeader("Expires", 0);
    Usuario usuario = usuarioService.buscarPorId(idEmpleado);
    File pdf = new File(
            USUARIOS + usuario.getMail() + "\\" + contrato.getNombre() + "\\" + contrato.getNombre() + ".pdf");
    try {
        InputStream in = new FileInputStream(pdf);
        byte[] data = new byte[in.available()];
        in.read(data);
        javax.servlet.ServletOutputStream servletoutputstream = response.getOutputStream();

        servletoutputstream.write(data);
        servletoutputstream.flush();
        servletoutputstream.close();
    } catch (IOException e) {
        e.printStackTrace();
    }

}

From source file:com.alkacon.opencms.formgenerator.CmsCaptchaField.java

/**
 * Writes a Captcha JPEG image to the servlet response output stream.
 * <p>// w w w  . j av  a 2 s.com
 * 
 * @param cms an initialized Cms JSP action element
 * @throws IOException if something goes wrong
 */
public void writeCaptchaImage(CmsJspActionElement cms) throws IOException {

    // remove eventual session attribute containing captcha settings
    cms.getRequest().getSession().removeAttribute(SESSION_PARAM_CAPTCHASETTINGS);
    String sessionId = cms.getRequest().getSession().getId();
    Locale locale = cms.getRequestContext().getLocale();
    BufferedImage captchaImage = null;
    int maxTries = 10;
    do {
        try {
            maxTries--;
            captchaImage = ((ImageCaptchaService) CmsCaptchaServiceCache.getSharedInstance()
                    .getCaptchaService(m_captchaSettings, cms.getCmsObject())).getImageChallengeForID(sessionId,
                            locale);
        } catch (CaptchaException cex) {
            // image size is too small, increase dimensions and try it again
            if (LOG.isInfoEnabled()) {
                LOG.info(cex);
                LOG.info(Messages.get().getBundle().key(Messages.LOG_ERR_CAPTCHA_CONFIG_IMAGE_SIZE_2,
                        new Object[] { m_captchaSettings.getPresetPath(), new Integer(maxTries) }));
            }
            m_captchaSettings.setImageHeight((int) (m_captchaSettings.getImageHeight() * 1.1));
            m_captchaSettings.setImageWidth((int) (m_captchaSettings.getImageWidth() * 1.1));
            // IMPORTANT: store changed captcha settings in session, they have to be used when validating the phrase
            cms.getRequest().getSession().setAttribute(SESSION_PARAM_CAPTCHASETTINGS,
                    m_captchaSettings.clone());
        }
    } while ((captchaImage == null) && (maxTries > 0));

    ServletOutputStream out = null;
    try {
        CmsFlexController controller = CmsFlexController.getController(cms.getRequest());
        HttpServletResponse response = controller.getTopResponse();
        response.setHeader("Cache-Control", "no-store");
        response.setHeader("Pragma", "no-cache");
        response.setDateHeader("Expires", 0);
        response.setContentType("image/jpeg");

        ByteArrayOutputStream captchaImageOutput = new ByteArrayOutputStream();
        ImageIO.write(captchaImage, "jpg", captchaImageOutput);
        out = cms.getResponse().getOutputStream();
        out.write(captchaImageOutput.toByteArray());
        out.flush();
    } catch (Exception e) {
        if (LOG.isErrorEnabled()) {
            LOG.error(e.getLocalizedMessage(), e);
        }
        cms.getResponse().sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
    } finally {
        try {
            if (out != null) {
                out.close();
            }
        } catch (Throwable t) {
            // intentionally left blank
        }
    }
}

From source file:org.overlord.sramp.ui.server.servlets.AbstractDownloadServlet.java

/**
 * Do download content./*from w  w  w. j a  v a2s  .c o m*/
 *
 * @param content
 *            the content
 * @param contentType
 *            the content type
 * @param disposition
 *            the disposition
 * @param httpResponse
 *            the http response
 * @throws IOException
 *             Signals that an I/O exception has occurred.
 */
protected void doDownloadContent(InputStream content, String contentType, String disposition,
        HttpServletResponse httpResponse) throws IOException {
    if (StringUtils.isNotBlank(disposition)) {
        httpResponse.setHeader("Content-Disposition", disposition); //$NON-NLS-1$
    }
    if (StringUtils.isNotBlank(contentType)) {
        httpResponse.setHeader("Content-Type", contentType); //$NON-NLS-1$
    }

    // Make sure the browser doesn't cache it
    Date now = new Date();
    httpResponse.setDateHeader("Date", now.getTime()); //$NON-NLS-1$
    httpResponse.setDateHeader("Expires", now.getTime() - 86400000L); //$NON-NLS-1$
    httpResponse.setHeader("Pragma", "no-cache"); //$NON-NLS-1$ //$NON-NLS-2$
    httpResponse.setHeader("Cache-control", "no-cache, no-store, must-revalidate"); //$NON-NLS-1$ //$NON-NLS-2$
    try {
        IOUtils.copy(content, httpResponse.getOutputStream());
    } finally {
        IOUtils.closeQuietly(content);
    }
}