Example usage for javax.servlet.http HttpServletResponse sendError

Introduction

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

Prototype

public void sendError(int sc) throws IOException;

Source Link

Document

Sends an error response to the client using the specified status code and clears the buffer.

Usage

From source file:com.adito.vfs.webdav.DAVServlet.java

/**
 * Add the headers required for the browser to popup an authentication
 * dialog for a specified realm, and send the
 * {@link HttpServletResponse.SC_UNAUTHORIZED} HTTP response code.
 * /*from w w  w  . ja v  a 2s  .co  m*/
 * @param request request
 * @param response response
 * @param realm realm.
 * @throws IOException
 */
public static void sendAuthorizationError(HttpServletRequest request, HttpServletResponse response,
        String realm) throws IOException {
    /*
     * If this is for the default realm (i.e Adito Authentication, we
     * need to set up an authentication scheme
     */
    if (realm.equals(WebDAVAuthenticationModule.DEFAULT_REALM)) {
        configureAuthenticationScheme(request, response);
    }

    // Configure the response

    if (log.isDebugEnabled())
        log.debug("Sending auth request for realm " + realm);
    response.setHeader("WWW-Authenticate", "Basic realm=\"" + realm + "\"");
    response.sendError(HttpServletResponse.SC_UNAUTHORIZED);
    request.getSession().setAttribute(DAVTransaction.ATTR_EXPECTING_REALM_AUTHENTICATION, realm);

}

From source file:com.octo.captcha.module.web.image.ImageToJpegHelper.java

/**
 * retrieve a new ImageCaptcha using ImageCaptchaService and flush it to the response.<br/> Captcha are localized
 * using request locale.<br/>//w  ww  .jav a  2s  . c  o m
 * <p/>
 * This method returns a 404 to the client instead of the image if the request isn't correct (missing parameters,
 * etc...)..<br/> The log may be null.<br/>
 *
 * @param theRequest  the request
 * @param theResponse the response
 * @param log         a commons logger
 * @param service     an ImageCaptchaService instance
 *
 * @throws java.io.IOException if a problem occurs during the jpeg generation process
 */
public static void flushNewCaptchaToResponse(HttpServletRequest theRequest, HttpServletResponse theResponse,
        Log log, ImageCaptchaService service, String id, Locale locale) throws IOException {

    // call the ImageCaptchaService method to retrieve a captcha
    byte[] captchaChallengeAsJpeg = null;
    ByteArrayOutputStream jpegOutputStream = new ByteArrayOutputStream();
    try {
        BufferedImage challenge = service.getImageChallengeForID(id, locale);
        // the output stream to render the captcha image as jpeg into

        ImageIO.write(challenge, "jpg", jpegOutputStream);

    } catch (IllegalArgumentException e) {
        //    log a security warning and return a 404...
        if (log != null && log.isWarnEnabled()) {
            log.warn("There was a try from " + theRequest.getRemoteAddr()
                    + " to render an captcha with invalid ID :'" + id + "' or with a too long one");
            theResponse.sendError(HttpServletResponse.SC_NOT_FOUND);
            return;
        }
    }

    captchaChallengeAsJpeg = jpegOutputStream.toByteArray();

    // render the captcha challenge as a JPEG image in the response
    theResponse.setHeader("Cache-Control", "no-store");
    theResponse.setHeader("Pragma", "no-cache");
    theResponse.setDateHeader("Expires", 0);

    theResponse.setContentType("image/jpeg");
    ServletOutputStream responseOutputStream = theResponse.getOutputStream();
    responseOutputStream.write(captchaChallengeAsJpeg);
    responseOutputStream.flush();
    responseOutputStream.close();
}

From source file:com.sslexplorer.vfs.webdav.DAVServlet.java

/**
 * Add the headers required for the browser to popup an authentication
 * dialog for a specified realm, and send the
 * {@link HttpServletResponse.SC_UNAUTHORIZED} HTTP response code.
 * //from  w ww  .j  av  a 2 s . c  o  m
 * @param request request
 * @param response response
 * @param realm realm.
 * @throws IOException
 */
public static void sendAuthorizationError(HttpServletRequest request, HttpServletResponse response,
        String realm) throws IOException {
    /*
     * If this is for the default realm (i.e SSL-Explorer Authentication, we
     * need to set up an authentication scheme
     */
    if (realm.equals(WebDAVAuthenticationModule.DEFAULT_REALM)) {
        configureAuthenticationScheme(request, response);
    }

    // Configure the response

    if (log.isDebugEnabled())
        log.debug("Sending auth request for realm " + realm);
    response.setHeader("WWW-Authenticate", "Basic realm=\"" + realm + "\"");
    response.sendError(HttpServletResponse.SC_UNAUTHORIZED);
    request.getSession().setAttribute(DAVTransaction.ATTR_EXPECTING_REALM_AUTHENTICATION, realm);

}

From source file:com.armeniopinto.time.ApplicationStarter.java

@ExceptionHandler
public void handleUnkonwnDateFormat(final IllegalArgumentException iae, final HttpServletResponse response)
        throws IOException {
    response.sendError(HttpStatus.NOT_FOUND.value());
}

From source file:io.pivotal.strepsirrhini.chaosloris.web.ExceptionHandlers.java

@ExceptionHandler(DataIntegrityViolationException.class)
void handleDataIntegrityViolationException(HttpServletResponse response) throws IOException {
    response.sendError(SC_BAD_REQUEST);
}

From source file:io.pivotal.strepsirrhini.chaosloris.web.ExceptionHandlers.java

@ExceptionHandler(EmptyResultDataAccessException.class)
void handleEmptyResultDataAccessException(HttpServletResponse response) throws IOException {
    response.sendError(SC_NOT_FOUND);
}

From source file:io.pivotal.strepsirrhini.chaosloris.web.ExceptionHandlers.java

@ExceptionHandler(EntityNotFoundException.class)
void handleEntityNotFoundException(HttpServletResponse response) throws IOException {
    response.sendError(SC_NOT_FOUND);
}

From source file:net.swigg.talo.admin.TestControllerImpl.java

@Override
public String error(HttpServletResponse response) throws IOException {
    response.sendError(HttpServletResponse.SC_NOT_FOUND);
    return "error";
}

From source file:org.codehaus.groovy.grails.plugins.remoting.DummyHttpExporter.java

/**
 * Always returns a 404 HTTP status./*from   www  . java 2s.c  o  m*/
 */
public void handleRequest(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    response.sendError(HttpServletResponse.SC_NOT_FOUND);
}

From source file:ru.mystamps.web.support.spring.security.Http401UnauthorizedEntryPoint.java

/**
 * Always returns a 401 error code to the client.
 **//*ww  w . j  a  va2  s . c  o m*/
@Override
public void commence(HttpServletRequest req, HttpServletResponse resp, AuthenticationException ex)
        throws IOException {

    resp.sendError(HttpServletResponse.SC_UNAUTHORIZED);
}