54 lines
1.8 KiB
Java
54 lines
1.8 KiB
Java
// Copyright (C) 2013 The Android Open Source Project
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package com.google.gerrit.httpd;
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import static java.nio.charset.StandardCharsets.UTF_8;
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import com.google.gerrit.common.Nullable;
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import com.google.inject.Inject;
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import com.google.inject.Provider;
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import java.io.UnsupportedEncodingException;
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import java.net.URLDecoder;
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import javax.servlet.http.HttpServletRequest;
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public class CanonicalWebUrl {
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private final Provider<String> configured;
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@Inject
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CanonicalWebUrl(
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@com.google.gerrit.server.config.CanonicalWebUrl @Nullable Provider<String> provider) {
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configured = provider;
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}
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public String get(HttpServletRequest req) {
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String url = configured.get();
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return url != null ? url : computeFromRequest(req);
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}
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static String computeFromRequest(HttpServletRequest req) {
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StringBuffer url = req.getRequestURL();
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try {
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url = new StringBuffer(URLDecoder.decode(url.toString(), UTF_8.name()));
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url.setLength(url.length() - req.getServletPath().length());
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if (url.charAt(url.length() - 1) != '/') {
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url.append('/');
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}
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return url.toString();
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} catch (UnsupportedEncodingException e) {
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throw new IllegalStateException("Unsupported encoding for request URL " + url, e);
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}
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}
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}
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