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// Copyright (C) 2016 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.auth.restapi;
import com.google.common.flogger.FluentLogger;
import com.google.gerrit.auth.oauth.OAuthTokenCache;
import com.google.gerrit.common.Nullable;
import com.google.gerrit.extensions.auth.oauth.OAuthToken;
import com.google.gerrit.extensions.restapi.AuthException;
import com.google.gerrit.extensions.restapi.ResourceNotFoundException;
import com.google.gerrit.extensions.restapi.Response;
import com.google.gerrit.extensions.restapi.RestReadView;
import com.google.gerrit.server.CurrentUser;
import com.google.gerrit.server.account.AccountResource;
import com.google.gerrit.server.config.CanonicalWebUrl;
import com.google.inject.Inject;
import com.google.inject.Provider;
import com.google.inject.Singleton;
import java.net.URI;
import java.net.URISyntaxException;
@Singleton
public class GetOAuthToken implements RestReadView<AccountResource> {
private static final FluentLogger logger = FluentLogger.forEnclosingClass();
private static final String BEARER_TYPE = "bearer";
private final Provider<CurrentUser> self;
private final OAuthTokenCache tokenCache;
private final Provider<String> canonicalWebUrlProvider;
@Inject
GetOAuthToken(
Provider<CurrentUser> self,
OAuthTokenCache tokenCache,
@CanonicalWebUrl Provider<String> urlProvider) {
this.self = self;
this.tokenCache = tokenCache;
this.canonicalWebUrlProvider = urlProvider;
}
@Override
public Response<OAuthTokenInfo> apply(AccountResource rsrc)
throws AuthException, ResourceNotFoundException {
if (!self.get().hasSameAccountId(rsrc.getUser())) {
throw new AuthException("not allowed to get access token");
}
OAuthToken accessToken = tokenCache.get(rsrc.getUser().getAccountId());
if (accessToken == null) {
throw new ResourceNotFoundException();
}
OAuthTokenInfo accessTokenInfo = new OAuthTokenInfo();
accessTokenInfo.username = rsrc.getUser().getUserName().orElse(null);
accessTokenInfo.resourceHost = getHostName(canonicalWebUrlProvider.get());
accessTokenInfo.accessToken = accessToken.getToken();
accessTokenInfo.providerId = accessToken.getProviderId();
accessTokenInfo.expiresAt = Long.toString(accessToken.getExpiresAt());
accessTokenInfo.type = BEARER_TYPE;
return Response.ok(accessTokenInfo);
}
@Nullable
private static String getHostName(String canonicalWebUrl) {
if (canonicalWebUrl == null) {
logger.atSevere().log(
"No canonicalWebUrl defined in gerrit.config, OAuth may not work properly");
return null;
}
try {
return new URI(canonicalWebUrl).getHost();
} catch (URISyntaxException e) {
logger.atSevere().withCause(e).log("Invalid canonicalWebUrl '%s'", canonicalWebUrl);
return null;
}
}
public static class OAuthTokenInfo {
public String username;
public String resourceHost;
public String accessToken;
public String providerId;
public String expiresAt;
public String type;
}
}