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// Copyright (C) 2009 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.account;
import com.google.gerrit.common.errors.NoSuchGroupException;
import com.google.gerrit.reviewdb.client.Account;
import com.google.gerrit.reviewdb.client.AccountGroup;
import com.google.gerrit.server.CurrentUser;
import com.google.gerrit.server.IdentifiedUser;
import com.google.inject.Inject;
import com.google.inject.Provider;
/** Access control management for a group of accounts managed in Gerrit. */
public class GroupControl {
public static class Factory {
private final GroupCache groupCache;
private final Provider<CurrentUser> user;
@Inject
Factory(final GroupCache gc, final Provider<CurrentUser> cu) {
groupCache = gc;
user = cu;
}
public GroupControl controlFor(final AccountGroup.Id groupId)
throws NoSuchGroupException {
final AccountGroup group = groupCache.get(groupId);
if (group == null) {
throw new NoSuchGroupException(groupId);
}
return new GroupControl(groupCache, user.get(), group);
}
public GroupControl controlFor(final AccountGroup.UUID groupId)
throws NoSuchGroupException {
final AccountGroup group = groupCache.get(groupId);
if (group == null) {
throw new NoSuchGroupException(groupId);
}
return new GroupControl(groupCache, user.get(), group);
}
public GroupControl controlFor(final AccountGroup group) {
return new GroupControl(groupCache, user.get(), group);
}
public GroupControl validateFor(final AccountGroup.Id groupId)
throws NoSuchGroupException {
final GroupControl c = controlFor(groupId);
if (!c.isVisible()) {
throw new NoSuchGroupException(groupId);
}
return c;
}
}
private final GroupCache groupCache;
private final CurrentUser user;
private final AccountGroup group;
private Boolean isOwner;
GroupControl(GroupCache g, CurrentUser who, AccountGroup gc) {
groupCache = g;
user = who;
group = gc;
}
public CurrentUser getCurrentUser() {
return user;
}
public AccountGroup getAccountGroup() {
return group;
}
/** Can this user see this group exists? */
public boolean isVisible() {
return group.isVisibleToAll()
|| user.getEffectiveGroups().contains(group.getGroupUUID())
|| isOwner();
}
public boolean isOwner() {
if (isOwner == null) {
AccountGroup g = groupCache.get(group.getOwnerGroupId());
AccountGroup.UUID ownerUUID = g != null ? g.getGroupUUID() : null;
isOwner = getCurrentUser().getEffectiveGroups().contains(ownerUUID)
|| getCurrentUser().getCapabilities().canAdministrateServer();
}
return isOwner;
}
public boolean canAddMember(Account.Id id) {
return isOwner();
}
public boolean canRemoveMember(Account.Id id) {
return isOwner();
}
public boolean canSeeMember(Account.Id id) {
if (user instanceof IdentifiedUser
&& ((IdentifiedUser) user).getAccountId().equals(id)) {
return true;
}
return canSeeMembers();
}
public boolean canAddGroup(AccountGroup.Id id) {
return isOwner();
}
public boolean canRemoveGroup(AccountGroup.Id id) {
return isOwner();
}
public boolean canSeeGroup(AccountGroup.Id id) {
return canSeeMembers();
}
private boolean canSeeMembers() {
return group.isVisibleToAll() || isOwner();
}
}
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