Fri, 18 Dec 2020 16:16:54 +0100
Add mailto link to the display name above comments - fixes #112
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.AbstractLightPITServlet;
32 import de.uapcore.lightpit.Constants;
33 import de.uapcore.lightpit.HttpMethod;
34 import de.uapcore.lightpit.RequestMapping;
35 import de.uapcore.lightpit.viewmodel.LanguageView;
36 import org.slf4j.Logger;
37 import org.slf4j.LoggerFactory;
39 import javax.servlet.ServletException;
40 import javax.servlet.annotation.WebServlet;
41 import javax.servlet.http.HttpServletRequest;
42 import javax.servlet.http.HttpServletResponse;
43 import java.io.IOException;
44 import java.util.*;
46 @WebServlet(
47 name = "LanguageModule",
48 urlPatterns = "/language/*"
49 )
50 public final class LanguageModule extends AbstractLightPITServlet {
52 private static final Logger LOG = LoggerFactory.getLogger(LanguageModule.class);
54 private final List<Locale> languages = new ArrayList<>();
56 @Override
57 protected String getResourceBundleName() {
58 return "localization.language";
59 }
61 @Override
62 public void init() throws ServletException {
63 super.init();
65 Optional<String[]> langs = availableLanguages();
66 if (langs.isPresent()) {
67 for (String lang : langs.get()) {
68 try {
69 Locale locale = Locale.forLanguageTag(lang);
70 if (locale.getLanguage().isEmpty()) {
71 throw new IllformedLocaleException();
72 }
73 languages.add(locale);
74 } catch (IllformedLocaleException ex) {
75 LOG.warn("Specified language {} in context parameter cannot be mapped to an existing locale - skipping.", lang);
76 }
77 }
79 } else {
80 languages.add(Locale.ENGLISH);
81 LOG.warn("Context parameter 'available-languages' not found. Only english will be available.");
82 }
83 }
85 @Override
86 public void destroy() {
87 super.destroy();
88 languages.clear();
89 }
91 @RequestMapping(method = HttpMethod.GET)
92 public void handle(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
94 final var viewModel = new LanguageView();
95 viewModel.setLanguages(languages);
96 viewModel.setBrowserLanguage(req.getLocale());
97 viewModel.setCurrentLanguage((Locale)req.getSession().getAttribute(Constants.SESSION_ATTR_LANGUAGE));
99 setViewModel(req, viewModel);
100 setStylesheet(req, "language");
101 setContentPage(req, "language");
103 renderSite(req, resp);
104 }
106 @RequestMapping(method = HttpMethod.POST)
107 public void switchLanguage(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
109 Optional<Locale> chosenLanguage = Optional.ofNullable(req.getParameter("language"))
110 .map(Locale::forLanguageTag)
111 .filter((l) -> !l.getLanguage().isEmpty());
113 chosenLanguage.ifPresent((l) -> req.getSession().setAttribute(Constants.SESSION_ATTR_LANGUAGE, l));
114 chosenLanguage.ifPresent(resp::setLocale);
116 handle(req, resp);
117 }
118 }