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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.data.GroupDescription;
import com.google.gerrit.common.data.GroupDescriptions;
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.gerrit.server.InternalUser;
import com.google.inject.Inject;
import com.google.inject.Provider;
import com.google.inject.Singleton;
/** Access control management for a group of accounts managed in Gerrit. */
public class GroupControl {
@Singleton
public static class GenericFactory {
private final GroupBackend groupBackend;
@Inject
GenericFactory(final GroupBackend gb) {
groupBackend = gb;
}
public GroupControl controlFor(final CurrentUser who,
final AccountGroup.UUID groupId)
throws NoSuchGroupException {
final GroupDescription.Basic group = groupBackend.get(groupId);
if (group == null) {
throw new NoSuchGroupException(groupId);
}
return new GroupControl(who, group);
}
}
public static class Factory {
private final GroupCache groupCache;
private final Provider<CurrentUser> user;
private final GroupBackend groupBackend;
@Inject
Factory(final GroupCache gc, final Provider<CurrentUser> cu,
final GroupBackend gb) {
groupCache = gc;
user = cu;
groupBackend = gb;
}
public GroupControl controlFor(final AccountGroup.Id groupId)
throws NoSuchGroupException {
final AccountGroup group = groupCache.get(groupId);
if (group == null) {
throw new NoSuchGroupException(groupId);
}
return controlFor(GroupDescriptions.forAccountGroup(group));
}
public GroupControl controlFor(final AccountGroup.UUID groupId)
throws NoSuchGroupException {
final GroupDescription.Basic group = groupBackend.get(groupId);
if (group == null) {
throw new NoSuchGroupException(groupId);
}
return controlFor(group);
}
public GroupControl controlFor(AccountGroup group) {
return controlFor(GroupDescriptions.forAccountGroup(group));
}
public GroupControl controlFor(GroupDescription.Basic group) {
return new GroupControl(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;
}
public GroupControl validateFor(final AccountGroup.UUID groupUUID)
throws NoSuchGroupException {
final GroupControl c = controlFor(groupUUID);
if (!c.isVisible()) {
throw new NoSuchGroupException(groupUUID);
}
return c;
}
}
private final CurrentUser user;
private final GroupDescription.Basic group;
private Boolean isOwner;
GroupControl(CurrentUser who, GroupDescription.Basic gd) {
user = who;
group = gd;
}
public GroupDescription.Basic getGroup() {
return group;
}
public CurrentUser getCurrentUser() {
return user;
}
/** Can this user see this group exists? */
public boolean isVisible() {
AccountGroup accountGroup = GroupDescriptions.toAccountGroup(group);
return (accountGroup != null && accountGroup.isVisibleToAll())
|| user instanceof InternalUser
|| user.getEffectiveGroups().contains(group.getGroupUUID())
|| isOwner();
}
public boolean isOwner() {
AccountGroup accountGroup = GroupDescriptions.toAccountGroup(group);
if (accountGroup == null) {
isOwner = false;
} else if (isOwner == null) {
AccountGroup.UUID ownerUUID = accountGroup.getOwnerGroupUUID();
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.UUID uuid) {
return isOwner();
}
public boolean canRemoveGroup(AccountGroup.UUID uuid) {
return isOwner();
}
public boolean canSeeGroup(AccountGroup.UUID uuid) {
return canSeeMembers();
}
private boolean canSeeMembers() {
AccountGroup accountGroup = GroupDescriptions.toAccountGroup(group);
return (accountGroup != null && accountGroup.isVisibleToAll())
|| isOwner();
}
}
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