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/* * Copyright 2016 the original author or authors. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package io.github.jhipster.config.locale; import java.util.Locale; import java.util.TimeZone; import javax.servlet.http.*; import org.springframework.context.i18n.LocaleContext; import org.springframework.context.i18n.TimeZoneAwareLocaleContext; import org.springframework.util.StringUtils; import org.springframework.web.servlet.i18n.CookieLocaleResolver; import org.springframework.web.util.WebUtils; /** * Angular cookie saved the locale with a double quote (%22en%22). * So the default CookieLocaleResolver#StringUtils.parseLocaleString(localePart) * is not able to parse the locale. * * This class will check if a double quote has been added, if so it will remove it. */ public class AngularCookieLocaleResolver extends CookieLocaleResolver { @Override public Locale resolveLocale(HttpServletRequest request) { parseLocaleCookieIfNecessary(request); return (Locale) request.getAttribute(LOCALE_REQUEST_ATTRIBUTE_NAME); } @Override public LocaleContext resolveLocaleContext(final HttpServletRequest request) { parseLocaleCookieIfNecessary(request); return new TimeZoneAwareLocaleContext() { @Override public Locale getLocale() { return (Locale) request.getAttribute(LOCALE_REQUEST_ATTRIBUTE_NAME); } @Override public TimeZone getTimeZone() { return (TimeZone) request.getAttribute(TIME_ZONE_REQUEST_ATTRIBUTE_NAME); } }; } @Override public void addCookie(HttpServletResponse response, String cookieValue) { // Mandatory cookie modification for AngularJS to support the locale switching on the server side. super.addCookie(response, "%22" + cookieValue + "%22"); } private void parseLocaleCookieIfNecessary(HttpServletRequest request) { if (request.getAttribute(LOCALE_REQUEST_ATTRIBUTE_NAME) == null) { // Retrieve and parse cookie value. Cookie cookie = WebUtils.getCookie(request, getCookieName()); Locale locale = null; TimeZone timeZone = null; if (cookie != null) { String value = cookie.getValue(); // Remove the double quote value = StringUtils.replace(value, "%22", ""); String localePart = value; String timeZonePart = null; int spaceIndex = localePart.indexOf(' '); if (spaceIndex != -1) { localePart = value.substring(0, spaceIndex); timeZonePart = value.substring(spaceIndex + 1); } locale = !"-".equals(localePart) ? StringUtils.parseLocaleString(localePart.replace('-', '_')) : null; if (timeZonePart != null) { timeZone = StringUtils.parseTimeZoneString(timeZonePart); } if (logger.isTraceEnabled()) { logger.trace("Parsed cookie value [" + cookie.getValue() + "] into locale '" + locale + "'" + (timeZone != null ? " and time zone '" + timeZone.getID() + "'" : "")); } } request.setAttribute(LOCALE_REQUEST_ATTRIBUTE_NAME, locale != null ? locale : determineDefaultLocale(request)); request.setAttribute(TIME_ZONE_REQUEST_ATTRIBUTE_NAME, timeZone != null ? timeZone : determineDefaultTimeZone(request)); } } }