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// Copyright (C) 2012 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 static java.util.stream.Collectors.toList;
import com.google.common.collect.ImmutableList;
import com.google.gerrit.common.Nullable;
import com.google.gerrit.entities.AccountGroup;
import com.google.gerrit.entities.GroupDescription;
import com.google.gerrit.entities.GroupReference;
import com.google.gerrit.entities.InternalGroup;
import com.google.gerrit.server.CurrentUser;
import com.google.gerrit.server.group.InternalGroupDescription;
import com.google.gerrit.server.group.db.Groups;
import com.google.gerrit.server.group.db.GroupsNoteDbConsistencyChecker;
import com.google.gerrit.server.project.ProjectState;
import com.google.inject.Inject;
import com.google.inject.Singleton;
import java.io.IOException;
import java.util.Collection;
import java.util.Optional;
import org.eclipse.jgit.errors.ConfigInvalidException;
import org.eclipse.jgit.lib.ObjectId;
/** Implementation of GroupBackend for the internal group system. */
@Singleton
public class InternalGroupBackend implements GroupBackend {
private final GroupControl.Factory groupControlFactory;
private final GroupCache groupCache;
private final Groups groups;
private final IncludingGroupMembership.Factory groupMembershipFactory;
@Inject
InternalGroupBackend(
GroupControl.Factory groupControlFactory,
GroupCache groupCache,
Groups groups,
IncludingGroupMembership.Factory groupMembershipFactory) {
this.groupControlFactory = groupControlFactory;
this.groupCache = groupCache;
this.groups = groups;
this.groupMembershipFactory = groupMembershipFactory;
}
@Override
public boolean handles(AccountGroup.UUID uuid) {
// See AccountGroup.isInternalGroup
return ObjectId.isId(uuid.get()); // [0-9a-f]{40};
}
@Nullable
@Override
public GroupDescription.Internal get(AccountGroup.UUID uuid) {
if (!handles(uuid)) {
return null;
}
return groupCache.get(uuid).map(InternalGroupDescription::new).orElse(null);
}
@Override
public Collection<GroupReference> suggest(String name, ProjectState project) {
try {
return groups
.getAllGroupReferences()
.filter(group -> startsWithIgnoreCase(group, name))
.filter(this::isVisible)
.collect(toList());
} catch (IOException | ConfigInvalidException e) {
return ImmutableList.of();
}
}
private static boolean startsWithIgnoreCase(GroupReference group, String name) {
return group.getName().regionMatches(true, 0, name, 0, name.length());
}
private boolean isVisible(GroupReference groupReference) {
Optional<InternalGroup> group = groupCache.get(groupReference.getUUID());
if (!group.isPresent()) {
// groupRefs are read from group name notes. There is an inconsistency if this lookup fails.
GroupsNoteDbConsistencyChecker.logFailToLoadFromGroupRefAsWarning(groupReference.getUUID());
return false;
}
return groupControlFactory.controlFor(new InternalGroupDescription(group.get())).isVisible();
}
@Override
public GroupMembership membershipsOf(CurrentUser user) {
return groupMembershipFactory.create(user);
}
@Override
public boolean isVisibleToAll(AccountGroup.UUID uuid) {
GroupDescription.Internal g = get(uuid);
return g != null && g.isVisibleToAll();
}
}