| // Copyright (C) 2013 The Android Open Source Project |
| // |
| // 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 com.google.gerrit.httpd; |
| |
| import javax.servlet.http.HttpServletRequest; |
| |
| import com.google.gerrit.common.Nullable; |
| import com.google.inject.Inject; |
| import com.google.inject.Provider; |
| |
| public class CanonicalWebUrl { |
| private final Provider<String> configured; |
| |
| @Inject |
| CanonicalWebUrl( |
| @com.google.gerrit.server.config.CanonicalWebUrl |
| @Nullable |
| Provider<String> provider) { |
| configured = provider; |
| } |
| |
| public String get(HttpServletRequest req) { |
| String url = configured.get(); |
| return url != null ? url : computeFromRequest(req); |
| } |
| |
| static String computeFromRequest(HttpServletRequest req) { |
| StringBuffer url = req.getRequestURL(); |
| url.setLength(url.length() - req.getServletPath().length()); |
| if (url.charAt(url.length() - 1) != '/') { |
| url.append('/'); |
| } |
| return url.toString(); |
| } |
| } |