You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
111 lines
3.6 KiB
111 lines
3.6 KiB
/*
|
|
This file is part of Libresonic.
|
|
|
|
Libresonic is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation, either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
Libresonic is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with Libresonic. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
Copyright 2016 (C) Libresonic Authors
|
|
Based upon Subsonic, Copyright 2009 (C) Sindre Mehus
|
|
*/
|
|
package org.libresonic.player.i18n;
|
|
|
|
import org.libresonic.player.domain.UserSettings;
|
|
import org.libresonic.player.service.SecurityService;
|
|
import org.libresonic.player.service.SettingsService;
|
|
import org.springframework.web.servlet.LocaleResolver;
|
|
|
|
import javax.servlet.http.HttpServletRequest;
|
|
import javax.servlet.http.HttpServletResponse;
|
|
|
|
import java.util.Arrays;
|
|
import java.util.HashSet;
|
|
import java.util.Locale;
|
|
import java.util.Set;
|
|
|
|
/**
|
|
* Locale resolver implementation which returns the locale selected in the settings.
|
|
*
|
|
* @author Sindre Mehus
|
|
*/
|
|
public class LibresonicLocaleResolver implements LocaleResolver {
|
|
|
|
private SecurityService securityService;
|
|
private SettingsService settingsService;
|
|
private Set<Locale> locales;
|
|
|
|
/**
|
|
* Resolve the current locale via the given request.
|
|
*
|
|
* @param request Request to be used for resolution.
|
|
* @return The current locale.
|
|
*/
|
|
public Locale resolveLocale(HttpServletRequest request) {
|
|
Locale locale = (Locale) request.getAttribute("libresonic.locale");
|
|
if (locale != null) {
|
|
return locale;
|
|
}
|
|
|
|
// Optimization: Cache locale in the request.
|
|
locale = doResolveLocale(request);
|
|
request.setAttribute("libresonic.locale", locale);
|
|
|
|
return locale;
|
|
}
|
|
|
|
private Locale doResolveLocale(HttpServletRequest request) {
|
|
Locale locale = null;
|
|
|
|
// Look for user-specific locale.
|
|
String username = securityService.getCurrentUsername(request);
|
|
if (username != null) {
|
|
UserSettings userSettings = settingsService.getUserSettings(username);
|
|
if (userSettings != null) {
|
|
locale = userSettings.getLocale();
|
|
}
|
|
}
|
|
|
|
if (locale != null && localeExists(locale)) {
|
|
return locale;
|
|
}
|
|
|
|
// Return system locale.
|
|
locale = settingsService.getLocale();
|
|
return localeExists(locale) ? locale : Locale.ENGLISH;
|
|
}
|
|
|
|
/**
|
|
* Returns whether the given locale exists.
|
|
* @param locale The locale.
|
|
* @return Whether the locale exists.
|
|
*/
|
|
private synchronized boolean localeExists(Locale locale) {
|
|
// Lazily create set of locales.
|
|
if (locales == null) {
|
|
locales = new HashSet<Locale>(Arrays.asList(settingsService.getAvailableLocales()));
|
|
}
|
|
|
|
return locales.contains(locale);
|
|
}
|
|
|
|
public void setLocale(HttpServletRequest request, HttpServletResponse response, Locale locale) {
|
|
throw new UnsupportedOperationException("Cannot change locale - use a different locale resolution strategy");
|
|
}
|
|
|
|
public void setSecurityService(SecurityService securityService) {
|
|
this.securityService = securityService;
|
|
}
|
|
|
|
public void setSettingsService(SettingsService settingsService) {
|
|
this.settingsService = settingsService;
|
|
}
|
|
}
|
|
|