Example usage for javax.servlet.http HttpServletResponse addHeader

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

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Introduction

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

Prototype

public void addHeader(String name, String value);

Source Link

Document

Adds a response header with the given name and value.

Usage

From source file:com.hp.autonomy.searchcomponents.core.view.ViewContentSecurityPolicy.java

/**
 * Add content security policy headers to an HTTP response. These control what child content can be loaded from the
 * proxied document, reducing the risk of allowing users to serve arbitrary documents from the application domain.
 * @param response The HTTP response/* w ww  .  j  a v a2s .c om*/
 */
public static void addContentSecurityPolicy(final HttpServletResponse response) {
    // We need both headers to support all browsers
    response.addHeader("Content-Security-Policy", CONTENT_SECURITY_POLICY);
    response.addHeader("X-Content-Security-Policy", CONTENT_SECURITY_POLICY);
}

From source file:net.duckling.ddl.web.bean.NginxAgent.java

/**
 * X-Accel-Redirectnignx//from ww w .jav a2  s . com
 * @param req
 * @param resp
 * @param fileName
 * @param fileSize
 * @param url
 */
public static void setRedirectUrl(HttpServletRequest req, HttpServletResponse resp, String fileName,
        long fileSize, String url) {
    if (fileSize > 0) {
        resp.addHeader(X_ACCEL_REDIRECT, url + "?agent="
                + Browser.recognizeBrowser(req.getHeader("USER-AGENT")).toString().toLowerCase());
    }

    // x_accel_redirect to nginx-clbs (gridfs) that
    // doesn't include Content-Disposition.
    // Set it here and the headers will be combined.
    resp.setHeader("Content-Disposition", Browser.encodeFileName(req.getHeader("USER-AGENT"), fileName));

}

From source file:io.lavagna.web.security.SecurityFilter.java

/**
 *//*from ww w .  jav a  2s.co  m*/
// TODO check if the no caching directives could be removed/or at least
// changed... (?)
private static void addHeaders(HttpServletRequest req, HttpServletResponse res) {
    if (canApplyNoCachingHeaders(req)) {
        res.addHeader("Cache-Control", "no-cache, no-store, max-age=0, must-revalidate");
        res.addHeader("Expires", "0");
        res.addHeader("Pragma", "no-cache");
    }

    res.addHeader("X-Frame-Options", "SAMEORIGIN");
    res.addHeader("X-XSS-Protection", "1; mode=block");
    res.addHeader("x-content-type-options", "nosniff");
}

From source file:dk.dma.msinm.common.util.WebUtils.java

/**
 * Add headers to the response to ensure caching in the given duration
 * @param response the response/*w ww . j  a  v a2  s  .c o  m*/
 * @param seconds the number of seconds to cache the response
 * @return the response
 */
public static HttpServletResponse cache(HttpServletResponse response, int seconds) {
    long now = System.currentTimeMillis();
    response.addHeader("Cache-Control", "max-age=" + seconds);
    response.setDateHeader("Last-Modified", now);
    response.setDateHeader("Expires", now + seconds * 1000L);
    return response;
}

From source file:org.craftercms.core.util.HttpServletUtils.java

public static void disableCaching(HttpServletResponse response) {
    response.addHeader(PRAGMA_HEADER_NAME, "no-cache");
    response.addHeader(CACHE_CONTROL_HEADER_NAME, "no-cache, no-store, max-age=0");
    response.addDateHeader(EXPIRES_HEADER_NAME, 1L);
}

From source file:org.gwtwidgets.server.spring.ServletUtils.java

/**
 * Adjusts HTTP headers so that browsers won't cache response.
 * @param response//w  w  w.j a v  a 2  s .  c om
 * For more background see <a href="http://www.onjava.com/pub/a/onjava/excerpt/jebp_3/index2.html">this</a>.
 */
public static void disableResponseCaching(HttpServletResponse response) {
    response.setHeader("Expires", "Sat, 1 January 2000 12:00:00 GMT");
    response.setHeader("Cache-Control", "no-store, no-cache, must-revalidate");
    response.addHeader("Cache-Control", "post-check=0, pre-check=0");
    response.setHeader("Pragma", "no-cache");
}

From source file:Main.java

/**
 * Add headers to prevent browsers and proxies from caching this reply.
 * @param resp The response to add headers to
 *///  www .ja  v a2 s .co  m
public static void addNoCacheHeaders(HttpServletResponse resp) {
    // Set standard HTTP/1.1 no-cache headers.
    resp.setHeader("Cache-Control", "no-store, no-cache, must-revalidate");

    // Set IE extended HTTP/1.1 no-cache headers (use addHeader).
    resp.addHeader("Cache-Control", "post-check=0, pre-check=0");

    // Set standard HTTP/1.0 no-cache header.
    resp.setHeader("Pragma", "no-cache");

    // Set to expire far in the past. Prevents caching at the proxy server
    resp.setHeader("Expires", "Sat, 6 May 1995 12:00:00 GMT");
}

From source file:com.gc.core.framework.utils.web.ServletUtils.java

/**
 * ?Header./*w  w w .j  a v a 2s.c om*/
 */
public static void setDisableCacheHeader(HttpServletResponse response) {
    //Http 1.0 header
    response.setDateHeader("Expires", 1L);
    response.addHeader("Pragma", "no-cache");
    //Http 1.1 header
    response.setHeader("Cache-Control", "no-cache, no-store, max-age=0");
}

From source file:com.dosport.system.utils.ServletUtils.java

/**
 * ?Header./*from  w w  w .ja va 2 s .  c  om*/
 */
public static void setDisableCacheHeader(HttpServletResponse response) {
    // Http 1.0 header
    response.setDateHeader("Expires", 1L);
    response.addHeader("Pragma", "no-cache");
    // Http 1.1 header
    response.setHeader("Cache-Control", "no-cache, no-store, max-age=0");
}

From source file:com.iyonger.apm.web.util.FileDownloadUtils.java

/**
 * Download the given file to the given {@link HttpServletResponse}.
 *
 * @param response {@link HttpServletResponse}
 * @param file     file path/*  ww  w  . j av  a 2  s .c  om*/
 * @return true if succeeded
 */
public static boolean downloadFile(HttpServletResponse response, File file) {
    if (file == null || !file.exists()) {
        return false;
    }
    boolean result = true;
    response.reset();
    response.addHeader("Content-Disposition", "attachment;filename=" + file.getName());
    response.setContentType("application/octet-stream");
    response.addHeader("Content-Length", "" + file.length());
    InputStream fis = null;
    byte[] buffer = new byte[FILE_DOWNLOAD_BUFFER_SIZE];
    OutputStream toClient = null;
    try {
        fis = new BufferedInputStream(new FileInputStream(file));
        toClient = new BufferedOutputStream(response.getOutputStream());
        int readLength;
        while (((readLength = fis.read(buffer)) != -1)) {
            toClient.write(buffer, 0, readLength);
        }
        toClient.flush();
    } catch (FileNotFoundException e) {
        LOGGER.error("file not found:" + file.getAbsolutePath(), e);
        result = false;
    } catch (IOException e) {
        LOGGER.error("read file error:" + file.getAbsolutePath(), e);
        result = false;
    } finally {
        IOUtils.closeQuietly(fis);
        IOUtils.closeQuietly(toClient);
    }
    return result;
}