LightPIT: src/main/java/de/uapcore/lightpit/modules/ErrorModule.java@1574965c7dc7

fixes error pages and adds referer link to error page if it comes from the application

     1 /*

     2  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.

     3  *

     4  * Copyright 2018 Mike Becker. All rights reserved.

     5  *

     6  * Redistribution and use in source and binary forms, with or without

     7  * modification, are permitted provided that the following conditions are met:

     8  *

     9  *   1. Redistributions of source code must retain the above copyright

    10  *      notice, this list of conditions and the following disclaimer.

    11  *

    12  *   2. Redistributions in binary form must reproduce the above copyright

    13  *      notice, this list of conditions and the following disclaimer in the

    14  *      documentation and/or other materials provided with the distribution.

    15  *

    16  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"

    17  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

    18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

    19  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE

    20  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR

    21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF

    22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS

    23  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN

    24  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)

    25  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE

    26  * POSSIBILITY OF SUCH DAMAGE.

    27  *

    28  */

    29 package de.uapcore.lightpit.modules;

    31 import de.uapcore.lightpit.*;

    33 import javax.servlet.annotation.WebServlet;

    34 import javax.servlet.http.HttpServletRequest;

    35 import java.util.Optional;

    37 /**

    38  * Entry point for the application.

    39  */

    40 @LightPITModule(

    41         bundleBaseName = "localization.error",

    42         modulePath = "error",

    43         titleKey = "title",

    44         systemModule = true

    45 )

    46 @WebServlet(

    47         name = "ErrorModule",

    48         urlPatterns = "/error/*"

    49 )

    50 public final class ErrorModule extends AbstractLightPITServlet {

    52     public static final String REQ_ATTR_ERROR_CODE = "errorCode";

    53     public static final String REQ_ATTR_RETURN_LINK = "returnLink";

    55     private ResponseType handle(HttpServletRequest req, int sc) {

    57         req.setAttribute(REQ_ATTR_ERROR_CODE, sc);

    59         Optional.ofNullable(req.getHeader("Referer")).ifPresent(

    60                 referer -> req.setAttribute(REQ_ATTR_RETURN_LINK, referer)

    61         );

    63         setStylesheet(req, "error");

    64         setDynamicFragment(req, "error");

    66         return ResponseType.HTML;

    67     }

    69     @RequestMapping(requestPath = "404.html", method = HttpMethod.GET)

    70     public ResponseType handle404(HttpServletRequest req) {

    71         return handle(req, 404);

    72     }

    74     @RequestMapping(requestPath = "403.html", method = HttpMethod.GET)

    75     public ResponseType handle403(HttpServletRequest req) {

    76         return handle(req, 403);

    77     }

    79     @RequestMapping(requestPath = "500.html", method = HttpMethod.GET)

    80     public ResponseType handle500(HttpServletRequest req) {

    81         return handle(req, 500);

    82     }

    83 }

Mercurial > hg > LightPIT / file revision