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// Copyright (C) 2017 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.server.project;
import com.google.common.base.Strings;
import com.google.gerrit.extensions.api.config.AccessCheckInfo;
import com.google.gerrit.extensions.api.config.AccessCheckInput;
import com.google.gerrit.extensions.restapi.AuthException;
import com.google.gerrit.extensions.restapi.BadRequestException;
import com.google.gerrit.extensions.restapi.RestApiException;
import com.google.gerrit.extensions.restapi.RestModifyView;
import com.google.gerrit.extensions.restapi.UnprocessableEntityException;
import com.google.gerrit.reviewdb.client.Account;
import com.google.gerrit.reviewdb.client.Branch;
import com.google.gerrit.server.IdentifiedUser;
import com.google.gerrit.server.account.AccountResolver;
import com.google.gerrit.server.permissions.GlobalPermission;
import com.google.gerrit.server.permissions.PermissionBackend;
import com.google.gerrit.server.permissions.PermissionBackendException;
import com.google.gerrit.server.permissions.ProjectPermission;
import com.google.gerrit.server.permissions.RefPermission;
import com.google.gwtorm.server.OrmException;
import com.google.inject.Inject;
import com.google.inject.Singleton;
import java.io.IOException;
import javax.servlet.http.HttpServletResponse;
import org.eclipse.jgit.errors.ConfigInvalidException;
@Singleton
public class CheckAccess implements RestModifyView<ProjectResource, AccessCheckInput> {
private final AccountResolver accountResolver;
private final IdentifiedUser.GenericFactory userFactory;
private final PermissionBackend permissionBackend;
@Inject
CheckAccess(
AccountResolver resolver,
IdentifiedUser.GenericFactory userFactory,
PermissionBackend permissionBackend) {
this.accountResolver = resolver;
this.userFactory = userFactory;
this.permissionBackend = permissionBackend;
}
@Override
public AccessCheckInfo apply(ProjectResource rsrc, AccessCheckInput input)
throws OrmException, PermissionBackendException, RestApiException, IOException,
ConfigInvalidException {
permissionBackend.user(rsrc.getUser()).check(GlobalPermission.ADMINISTRATE_SERVER);
if (input == null) {
throw new BadRequestException("input is required");
}
if (Strings.isNullOrEmpty(input.account)) {
throw new BadRequestException("input requires 'account'");
}
Account match = accountResolver.find(input.account);
if (match == null) {
throw new UnprocessableEntityException(
String.format("cannot find account %s", input.account));
}
AccessCheckInfo info = new AccessCheckInfo();
IdentifiedUser user = userFactory.create(match.getId());
try {
permissionBackend.user(user).project(rsrc.getNameKey()).check(ProjectPermission.ACCESS);
} catch (AuthException | PermissionBackendException e) {
info.message =
String.format(
"user %s (%s) cannot see project %s",
user.getNameEmail(), user.getAccount().getId(), rsrc.getName());
info.status = HttpServletResponse.SC_FORBIDDEN;
return info;
}
if (!Strings.isNullOrEmpty(input.ref)) {
try {
permissionBackend
.user(user)
.ref(new Branch.NameKey(rsrc.getNameKey(), input.ref))
.check(RefPermission.READ);
} catch (AuthException | PermissionBackendException e) {
info.status = HttpServletResponse.SC_FORBIDDEN;
info.message =
String.format(
"user %s (%s) cannot see ref %s in project %s",
user.getNameEmail(), user.getAccount().getId(), input.ref, rsrc.getName());
return info;
}
}
info.status = HttpServletResponse.SC_OK;
return info;
}
}
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