1
22
23 package com.liferay.portal.servlet;
24
25 import com.liferay.portal.NoSuchLayoutException;
26 import com.liferay.portal.kernel.language.LanguageUtil;
27 import com.liferay.portal.kernel.log.Log;
28 import com.liferay.portal.kernel.log.LogFactoryUtil;
29 import com.liferay.portal.kernel.util.GetterUtil;
30 import com.liferay.portal.kernel.util.LocaleUtil;
31 import com.liferay.portal.kernel.util.StringPool;
32 import com.liferay.portal.kernel.util.Validator;
33 import com.liferay.portal.kernel.xml.Element;
34 import com.liferay.portal.util.PortalUtil;
35 import com.liferay.portal.util.WebKeys;
36
37 import java.io.IOException;
38
39 import java.util.HashSet;
40 import java.util.Iterator;
41 import java.util.Locale;
42 import java.util.Set;
43
44 import javax.servlet.RequestDispatcher;
45 import javax.servlet.ServletContext;
46 import javax.servlet.ServletException;
47 import javax.servlet.http.HttpServlet;
48 import javax.servlet.http.HttpServletRequest;
49 import javax.servlet.http.HttpServletResponse;
50
51
57 public class I18nServlet extends HttpServlet {
58
59 public static Set<String> getLanguageIds() {
60 return _languageIds;
61 }
62
63 public static void setLanguageIds(Element root) {
64 Iterator<Element> itr = root.elements("servlet-mapping").iterator();
65
66 while (itr.hasNext()) {
67 Element el = itr.next();
68
69 String servletName = el.elementText("servlet-name");
70
71 if (servletName.equals("I18n Servlet")) {
72 String urlPattern = el.elementText("url-pattern");
73
74 String languageId = urlPattern.substring(
75 0, urlPattern.lastIndexOf(StringPool.SLASH));
76
77 _languageIds.add(languageId);
78 }
79 }
80 }
81
82 public void service(
83 HttpServletRequest request, HttpServletResponse response)
84 throws IOException, ServletException {
85
86 try {
87 String[] i18nData = getI18nData(request);
88
89 if (i18nData == null) {
90 PortalUtil.sendError(
91 HttpServletResponse.SC_NOT_FOUND,
92 new NoSuchLayoutException(), request, response);
93 }
94 else {
95 String i18nLanguageId = i18nData[0];
96 String i18nPath = i18nData[1];
97 String redirect = i18nData[2];
98
99 request.setAttribute(WebKeys.I18N_LANGUAGE_ID, i18nLanguageId);
100 request.setAttribute(WebKeys.I18N_PATH, i18nPath);
101
102 ServletContext servletContext = getServletContext();
103
104 RequestDispatcher requestDispatcher =
105 servletContext.getRequestDispatcher(redirect);
106
107 requestDispatcher.forward(request, response);
108 }
109 }
110 catch (Exception e) {
111 _log.error(e, e);
112
113 PortalUtil.sendError(
114 HttpServletResponse.SC_INTERNAL_SERVER_ERROR, e, request,
115 response);
116 }
117 }
118
119 protected String[] getI18nData(HttpServletRequest request) {
120 String path = GetterUtil.getString(request.getPathInfo());
121
122 if (Validator.isNull(path)) {
123 return null;
124 }
125
126 String i18nLanguageId = request.getServletPath();
127
128 int pos = i18nLanguageId.lastIndexOf(StringPool.SLASH);
129
130 i18nLanguageId = i18nLanguageId.substring(pos + 1);
131
132 if (_log.isDebugEnabled()) {
133 _log.debug("Language ID " + i18nLanguageId);
134 }
135
136 if (Validator.isNull(i18nLanguageId)) {
137 return null;
138 }
139
140 String i18nPath = StringPool.SLASH + i18nLanguageId;
141
142 Locale locale = LocaleUtil.fromLanguageId(i18nLanguageId);
143
144 if (Validator.isNull(locale.getCountry())) {
145
146
148 locale = LanguageUtil.getLocale(locale.getLanguage());
149
150 i18nLanguageId = LocaleUtil.toLanguageId(locale);
151 }
152
153 String redirect = path;
154
155 if (_log.isDebugEnabled()) {
156 _log.debug("Redirect " + redirect);
157 }
158
159 return new String[] {i18nLanguageId, i18nPath, redirect};
160 }
161
162 private static Log _log = LogFactoryUtil.getLog(I18nServlet.class);
163
164 private static Set<String> _languageIds = new HashSet<String>();
165
166 }