universe@1: /*
universe@1:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
universe@34:  *
universe@24:  * Copyright 2018 Mike Becker. All rights reserved.
universe@34:  *
universe@1:  * Redistribution and use in source and binary forms, with or without
universe@1:  * modification, are permitted provided that the following conditions are met:
universe@1:  *
universe@1:  *   1. Redistributions of source code must retain the above copyright
universe@1:  *      notice, this list of conditions and the following disclaimer.
universe@1:  *
universe@1:  *   2. Redistributions in binary form must reproduce the above copyright
universe@1:  *      notice, this list of conditions and the following disclaimer in the
universe@1:  *      documentation and/or other materials provided with the distribution.
universe@1:  *
universe@1:  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
universe@1:  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
universe@1:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
universe@1:  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
universe@1:  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
universe@1:  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
universe@1:  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
universe@1:  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
universe@1:  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
universe@1:  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
universe@1:  * POSSIBILITY OF SUCH DAMAGE.
universe@34:  *
universe@1:  */
universe@7: package de.uapcore.lightpit.modules;
universe@1: 
universe@34: import de.uapcore.lightpit.*;
universe@34: 
universe@6: import javax.servlet.annotation.WebServlet;
universe@12: import javax.servlet.http.HttpServletRequest;
universe@53: import javax.servlet.http.HttpServletResponse;
universe@46: import java.util.Optional;
universe@1: 
universe@6: /**
universe@6:  * Entry point for the application.
universe@6:  */
universe@7: @LightPITModule(
universe@29:         bundleBaseName = "localization.error",
universe@18:         modulePath = "error",
universe@20:         titleKey = "title",
universe@20:         systemModule = true
universe@7: )
universe@6: @WebServlet(
universe@18:         name = "ErrorModule",
universe@18:         urlPatterns = "/error/*"
universe@6: )
universe@18: public final class ErrorModule extends AbstractLightPITServlet {
universe@34: 
universe@46:     public static final String REQ_ATTR_RETURN_LINK = "returnLink";
universe@34: 
universe@53:     @RequestMapping(requestPath = "generic", method = HttpMethod.GET)
universe@53:     public ResponseType onError(HttpServletRequest req, HttpServletResponse resp) {
universe@46:         Optional.ofNullable(req.getHeader("Referer")).ifPresent(
universe@46:                 referer -> req.setAttribute(REQ_ATTR_RETURN_LINK, referer)
universe@46:         );
universe@46: 
universe@18:         setStylesheet(req, "error");
universe@18:         setDynamicFragment(req, "error");
universe@34: 
universe@43:         return ResponseType.HTML;
universe@12:     }
universe@1: }