82 lines
2.5 KiB
Java
82 lines
2.5 KiB
Java
// Copyright (C) 2009 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 com.google.gerrit.server.config.CanonicalWebUrl;
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import com.google.gerrit.server.config.CanonicalWebUrlProvider;
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import com.google.gerrit.server.config.GerritServerConfig;
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import com.google.inject.Inject;
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import com.google.inject.OutOfScopeException;
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import com.google.inject.Provider;
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import com.google.inject.ProvisionException;
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import org.eclipse.jgit.lib.Config;
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import javax.servlet.http.HttpServletRequest;
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/** Sets {@link CanonicalWebUrl} to current HTTP request if not configured. */
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public class HttpCanonicalWebUrlProvider extends CanonicalWebUrlProvider {
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private Provider<HttpServletRequest> requestProvider;
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@Inject
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HttpCanonicalWebUrlProvider(@GerritServerConfig final Config config) {
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super(config);
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}
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@Inject(optional = true)
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public void setHttpServletRequest(final Provider<HttpServletRequest> hsr) {
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requestProvider = hsr;
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}
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@Override
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public String get() {
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String canonicalUrl = super.get();
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if (canonicalUrl != null) {
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return canonicalUrl;
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}
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if (requestProvider != null) {
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// No canonical URL configured? Maybe we can get a reasonable
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// guess from the incoming HTTP request, if we are currently
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// inside of an HTTP request scope.
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//
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final HttpServletRequest req;
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try {
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req = requestProvider.get();
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} catch (ProvisionException noWeb) {
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if (noWeb.getCause() instanceof OutOfScopeException) {
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// We can't obtain the request as we are not inside of
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// an HTTP request scope. Callers must handle null.
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//
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return null;
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} else {
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throw noWeb;
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}
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}
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final StringBuffer url = req.getRequestURL();
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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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}
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// We have no way of guessing our HTTP url.
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//
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return null;
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}
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}
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